CN101121753A - Human serum albumin recombination fusion protein with continuous repairing function to multifarious skin cell - Google Patents

Human serum albumin recombination fusion protein with continuous repairing function to multifarious skin cell Download PDF

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CN101121753A
CN101121753A CNA2007100575719A CN200710057571A CN101121753A CN 101121753 A CN101121753 A CN 101121753A CN A2007100575719 A CNA2007100575719 A CN A2007100575719A CN 200710057571 A CN200710057571 A CN 200710057571A CN 101121753 A CN101121753 A CN 101121753A
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hsa
fusion rotein
growth factor
yeast
serum albumin
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CN101121753B (en
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于在林
富岩
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Beijing Meifuyuan Biomedical Technology Co ltd
Tianjin Institute of Industrial Biotechnology of CAS
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United States Fuyuan Group (fortunerock Inc)
Tianjin Sino Biotechnology Ltd Fortunerock Inc
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Priority to CN201310335662.XA priority patent/CN105777908B/en
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Abstract

The invention provides a recombinant fusion protein which can stimulate the skin to repair the relevant cells and has the continuous function; the recombinant fusion protein can be used to improve the public health, hairdressing or the treatment of trauma and disease. In particular, the invention provides a human serum albumin (HSA) and a cell gene polypeptide (EGF and FGF, KGF, HGH, HGF, PDGF or IGFL); the genetic engineering method is used to recombine to form the fusion protein. 1) the fusion protein can be singly or combined for use to stimulate the repair of the cells, particularly for the development and update of each cell in the human epidermal system; 2) the fusion protein can greatly extend the service life of the cell gene in vivo and vitro to achieve the maximum stability of the product containing the cell gene and the continuous effects; 3) the cell gene formed by the recombination can be combined for use; the compound can get the functions brought by the cell gene to the greatest extent to stimulate the growth of the cells, to continuously repair and to increase the efficiency; 4) the fermentation liquid produced with the use of the yeast fermentation can be directly used in the product manufacture with the beautifying as the purpose after the simple processing. The invention also provides a manufacturing process and method of the high or low cost by using the yeast to produce the recombinant fusion protein.

Description

Human serum albumin recombination fusion protein to various skin cytothesis tool continuous action
Technical field
The present invention is the continuation application of Chinese patent ZL021428816 and ZL2004100428148.The present invention relates to human serum albumin fusion proteins of gene recombination and expression and preparation method thereof, and relate to the method that single fusion rotein or different fusion rotein are used in combination.Be particularly related to and utilize yeast expressed production by human serum albumin and the formed fusion rotein of the human cell growth factor (HSA/GF).Cell growth factor comprises: epithelical cell growth factor (EGF), fibroblast growth factor (FGF), platelet-derived growth factor (PDGF), keratinocyte growth factor (KGF) and insulin-like growth factor (IGF) etc.
Background technology
Human serum albumin (HSA) is a kind of soluble and monomeric protein, constitutes half of Tot Prot in the blood.Albumin is carried and is transmitted lipid acid, steroid and hormone molecule etc. as a kind of underlying carrier, and its stable inert nature is to keep an important factor of blood pressure.Serum albumin is that a kind of spherical nonglycosylated, molecular weight is 65 kilodaltons, has 585 amino acid whose serum protein.This albumen (albumin precursor) by the conversion processing of golgi body, is removed the guiding polypeptide, and is secreted into the extracellular again.Serum albumin has 35 halfcystines, and in blood, albumin is a monomer (referring to Brown JR, " albuminous structure, function and application " Pergamon, New York, 1977) that 17 disulfide linkage are arranged.When not having secrete polypeptide, the albumin product in yeast cell is the mispairing state, with the antigenicity (comparing with state of nature albumin in the blood plasma) that loses 90%, and forms insoluble albumin polymer, does not have albuminous biological activity.Being used for clinical albumin now all extracts from human plasma.Utilize the production of the recombinant expressed albumin of microorganism (rHSA) open in patent EP330451, EP361991 and Chinese patent application CN2004010057313.7.
Albumin is the main component in the blood, is that every liter of blood contains 40 grams at people's in-vivo content, and its life-span transformation period is 14-20 days.In sum, after therapeutic protein and albumin formed fusion rotein, fusion rotein will have great advantage made it to resist enzymolysis in the organism, and the external in vivo life-span of therapeutic protein is improved greatly, can also higher dosage use.
The use in cosmetics of people source or recombination human serum albumin has also obtained very significant practical application, and concrete description is arranged in patent CN01810411.8.
In pharmaceutical preparation was formed, albumin also was often used as the stablizer of medicine, especially biological medicine.
Utilize genetic engineering technique, human serum albumin and therapeutic protein gene fusion are expressed as fusion rotein in yeast, can increase stability and the long transformation period of therapeutic protein in serum and when storing, reach long-actingization of protein drug.Modification common techniques platform is open in Yu Zailin, rich rock China granted patent ZL02142881.6 and ZL200410042814.8 in this protein drug body, draws at this to be reference.
Summary of the invention
But the present inventor experimental results show that the fusion rotein irritation cell hyperplasia that human serum albumin and cell growth factor form by the vivo and vitro of animal and cell, and having the time longer with external stop in vivo (long half-lift and persistence) than monomeric cell growth factor, cell finds also that with experimentation on animals fusion rotein has the mole biological activity identical with the human cytokines monomer.During the combination of the fusion rotein (HSA/GF) that forms by HSA and different somatomedins when compound use, can have the reparation and the tool synergistic function that stimulate the various skin cell simultaneously, and be applicable to beauty treatment, wound and treatment of diseases, finish the present invention thus.
Cell growth factor involved in the present invention (GF) including, but not limited to, epithelical cell growth factor (EGF), fibroblast growth factor (FGF), Thr6 PDGF BB (PDGF), keratinocyte growth factor (KGF-2) and para-insulin cell growth factor (IGF).Be summarized as follows respectively with regard to its characteristic below:
1. (Epidiuen cell Growth Factor, EGF): be that EGF is the protein of the biologically active of being made up of 53 amino acid of human secretory, it extensively is distributed in the body fluid such as blood, saliva, urine epithelical cell growth factor.It has biologic activity widely, can promote the division of epidermic cell, quickens the metabolism of cell, makes newborn epidermic cell substitute aged cell (Carpenter, experimental cell research, 164:1-10,1986) rapidly.
2. keratinocyte growth factor (Keratinocyte Growth Factor, KGF, KGF-2): have multiple keratinocyte growth factor to exist in the animal body.With KGF-2 (also being FGF10) is a kind of basic protein of being made up of 208 amino acid, derive from embryo's epithelial cell, new life or grow up between the fibroblastic KGF of matter.KGF-2 has the mitotic effect of the epithelial cell of promotion.Can divide a word with a hyphen at the end of a line to the wound by attracting inoblast and reticular tissue, promote the reparation of damage epithelium, show as gentle short cell regeneration effect (Rubin JS etc., institute of NAS reports 86:802-806,1989; CN00809802.6).
3. (Platelet Derived Growth Factor, PDGF): Thr6 PDGF BB is a kind of somatomedin with neurotrophic activity to Thr6 PDGF BB.People PDGF is the dimer that is connected by disulfide linkage by A chain and B chain.Can form dimer (PDGFAA) between the A chain of PDGF.Find that in the recent period PDGFAA is to the growth decisive role of male mice reproductive system, prompting PDGFAA may be significant for the diagnosis and the treatment of some disease of reproductive system.Also can form dimer (PDGFBB) between the B chain of PDGF, reparation for increment, regeneration and the damaged tissue of epidermic cell has extremely strong effect, effectively promote various kinds of cell division and new skin regeneration, repair damaged tissue, promote the generation (Josephs etc. of collagen protein, science, 225 (4662): 636-639,1984; Li Peiwang etc., life science, 9:346-350,2005).
4. fibroblast growth factor (Fibroblast Growth Factor, FGF): mainly contain acidity (aFGF) and alkalescence (bFGF) two kinds of molecules.FGF derives from mesoderm and neuroectodermal multifunctional cytokine (Zhao etc., transplanting, 56,1177-1182,1993; Florkiewicz etc., New York science annual report, 638:109-126,1991).The mitotic division effect that tool is stronger.Vascular endothelial cell, inoblast etc. all there is short splitting action.Studies show that,, observe FGF isoreactivity polypeptide and have remarkable inducing cell reparation, quicken wound healing, reduce synulotic effect by different animal models such as mouse, rat, rabbit.BFGF can also promote the division of body melanocyte specifically.Animal experiment proof aFGF can promote the new life of ischemic tissue, but owing to the transformation period of aFGF in blood is too short, and in clinical trial, show obvious effects.
5. Insulin-Like cell growth factor (Insulin-like Growth Factors, IGFs): be with the Regular Insulin portion homologous and have the polypeptide of ILA on the class formation, existing short cytodifferentiation and proliferation activity, have ILA again, all play an important role keeping the adjusting of normal insulin sensitivity and glycaemic homeostasis.Domestic and international a lot of research shows that all the generation of IGFs and chronic complicating diseases of diabetes is closely related.The promotion of IGF-1 (somatomedin C) is grown, and the effect report of aspects such as substance metabolism is more.IGF-2 (somatomedin A; GenBank:MIM 147470), IGF-3 (somatomedin B; GenBank:MIM 193190) new discovering also arranged.
Except that the above cell growth factor of sketching, also have other somatomedin to form fusion rotein with human serum albumin, they can independent or compound use, can with albumin monomer or the independent or compound use of albumin fusion protein, and in order to cytothesis to reach the purpose of beauty treatment or wound, disease treatment.
Cell growth factor is unstable in preservation.With EGF is example, and in actual use, EGF also is extremely unstable in the skin wound environment, the protease hydrolysis inactivation that it is existed in the wound, and only 1 hour transformation period, but in the agglutination after the skin injury, the synthetic of DNA but needs 8-12 hour.Therefore, single uses EGF that healing is not had obvious promoter action on skin or corneal wound.Have only repeatedly to use repeatedly and could promote curative effect having healed.Therefore, in the practical application of medical science and cosmetic field be very limited (Manning etc., study of pharmacy, 6:903-917,1989; CN03011136).
Therefore, the present invention relates to following several aspect:
1) HSA/GF fusion rotein
The invention provides a kind of human serum albumin (HSA) and cell growth factor (GF) fusion rotein of producing with gene engineering method, this fusion rotein is the fusion rotein that is formed by the HSA of nucleotide coding and a kind of GF, i.e. HSA/GF fusion rotein.The method according to this invention, any albumin or its varient all can form a kind of fusion rotein with a kind of GF.
GF can be any albumen, but the differentiation of its irritation cell, hyperplasia or reparation.The most typical example of GF is cell growth factor (GF) application clinically, is approved for an example of the clinical treatment of wound and ulcer respectively as hEGF and hKGF.
GF of the present invention can be any a member in the following protein classification, including, but not limited to, epithelical cell growth factor (EGF), pHGF (HGF), the nerve growth factor (NGF), fibroblast growth factor (FGF), endothelial cell growth factor (ECGF) (VEGF), Insulin-Like cell growth factor (IGF), stem cell factor (SGF), keratinocyte growth factor (KGF), platelet-derived cell growth factor (PDGF), promotes growth releasing hormone (GHRF-6) etc.
GF can directly link to each other with the formation fusion rotein with the C-of HSA is terminal with N-terminal, or can increase a connection peptides (Linker) between HSA and GF, to constitute fusion rotein: HSA/L/GF or GF/L/HSA (L=connection peptides).Connection peptides length can be 2-100, and commonly used is 10-50 amino acid, preferably 14-30 amino acid.Connect small peptide and can make and bigger variation space is arranged between HSA and the GF and better snappiness or rigidity are arranged, or make GF easier because of bigger variation space with combining of acceptor.The structure of connection peptides can be (G4S) 3-4.The adding of connection peptides may make fusion rotein produce extra immunogenicity as the use of medicine the time, does not most preferably have connection peptides.
Fusion rotein can be a secretor type, and it can combine with AHS's albumin antibody of specific recognition.Fusion rotein also can combine with the antibody of the GF of specific recognition.If but polypeptide that the sero-abluminous secretion peptide of secretion peptide end user of fusion rotein or its occurring in nature exist or synthetic have the polypeptide that fusion rotein is secreted into the outer function of host cell.
Particularly, the present invention utilizes genetic engineering method to make up a nucleotide chain, this nucleotide chain encode a kind of HSA and the formed fusion rotein of people KGF-2 (HSA/hKGF-2), the nucleotide chain and the Seq ID No.1 of this fusion rotein of encoding has at least 90% sequence homology, and preferably this nucleotide chain and Seq ID No.1 have 95% sequence homology.By this nucleotide chain encoded protein matter amino acid sequence of polypeptide is Seq ID No.2.
Particularly, the present invention utilizes genetic engineering method to make up a nucleotide chain, the fusion rotein (HSA/hEGF) that a kind of HSA of this nucleotide chain codified and people EGF form, the nucleotide chain and the Seq ID No.3 of this fusion rotein of encoding has at least 90% sequence homology, and preferably this nucleotide chain and Seq ID No.3 have at least 95% sequence homology.Preferably, the aminoacid sequence of this nucleotide sequence coded protein and peptide is Seq ID No.4.
Particularly, the present invention utilizes genetic engineering method to make up a nucleotide chain, the fusion rotein (HSA/hIGF1) that a kind of HSA of this nucleotide chain codified and people IGF1 form, the nucleotide chain of this fusion rotein of encoding and Seq ID No.5 have at least 90% sequence homology.Preferred this nucleotide chain and Seq ID No.5 have at least 95% sequence homology.Preferably, the protein amino acid sequence of this nucleotide coding is Seq ID No.6.
Particularly, the present invention utilizes genetic engineering method to make up a nucleotide chain, the fusion rotein (HSA/hbFGF) that a kind of HSA of this nucleotide chain codified and people bFGF form.The nucleotide chain and the Seq ID No.7 of this fusion rotein of encoding has at least 90% sequence homology, and preferably, this nucleotide sequence and Seq ID No.7 have at least 95% sequence homology.Preferably, this nucleotide sequence coded protein amino acid sequence is Seq ID No.8.
Particularly, the present invention utilizes genetic engineering method to make up a nucleotide chain, a kind of HSA of this nucleotide chain codified and the formed fusion rotein of people aFGF (HSA/haFGF).The nucleotide chain and the Seq ID No.9 of this fusion rotein of encoding has at least 90% sequence homology, and preferably, this nucleotide sequence and Seq ID 9 have at least 95% sequence homology.Preferably, this nucleotide sequence coded protein amino acid sequence is Seq ID No.10.
Again particularly, the present invention utilizes genetic engineering method to make up a nucleotide chain, a kind of HSA of this nucleotide chain codified and the formed fusion rotein of PDGF-B (HSA/hPDGFB).The nucleotide chain and the Seq ID No.11 of this fusion rotein of encoding has at least 90% sequence homology, and preferably, this nucleotide sequence and Seq ID 11 have at least 95% sequence homology.Preferably, this nucleotide sequence coded protein amino acid sequence is Seq ID No.12.
Have the Nucleotide of sequence similarity to a certain degree to be meant with above-mentioned Nucleotide: for example, a kind of HSA/GF fusion rotein of encoding, and between similar nucleotide sequence, have the Nucleotide of at least 95% sequence homology.It comprises that per hundred Nucleotide have 5 point mutation on the nucleotide chain, and also is the nucleotide sequence of coding HSA/GF fusion rotein.In other words, the nucleotide chain of any nucleotide chain and above-mentioned coding HSA/GF fusion rotein has 95% sequence homology, that is, even if having nearly 5% Nucleotide individuality can be replaced, delete or insertion etc., all the nucleotide sequence with indication of the present invention is identical.No matter be at 5 ' or 3 ' end, or the sudden change that takes place of any site between two ends, still the sudden change that takes place with monomer or many bodies all within the scope of the invention.
In the practice, any nucleic acid molecule that refers in particular to is as long as have 90%, 95%, 96%, 97%, 98% or 99% similarity, just in protection scope of the present invention.And also can obtain as Bestfit software (Wisconsin) sequence analysis software bag by the known computer software of routine by nucleotide sequence coded HSA/GF fusion rotein.(2:482-489 (1981) seeks homologous sequence best between two sequences to Bestfit application region homology comparative approach for document: Smith and Waterman, applied mathematics progress.When using that this software or other are any to have similar dna sequence dna comparative analysis, a certain specific sequence all is considered as and sequence identical sources of the present invention as with sequence proposed by the invention sequence homology more than 95% being arranged.
The GF gene order can the method with pcr amplification obtain from total RNA of different tissue sources, if also can obtain with the method for synthetic full DNA sequence.The gene of synthetic can with Yi Anjisuanshi at its nucleotide coding, adopt the Nucleotide of expression system hobby, HSA/hEGF expressing fusion protein recombination microzyme, be deposited in China Committee for Culture Collection of Microorganisms of Microbe Inst., Chinese Academy of Sciences and obtained preserving number: CGMCC-2072, as the masterpiece of the HSA/GF fusion rotein among the present invention.
Under room temperature or higher temperature, HSA compares with the GF monomer with the fusion rotein that GF forms, and under similarity condition, has more than 2 times, preferably reaches 5 times or 10 times or more preferably reaches storage period and transformation period more than 20 times.
The invention still further relates to albumin as carrier, carry curative pharmaceutical grade protein, improve looks and treat various wounds, disease or unusual, or those are the people of purpose to strengthen hyperplasia, to repair, as wound, ulcer patient as GF.In the present invention, the HSA/GF fusion rotein can be used for vertebrates, preferably human, and pass through different approaches, including, but not limited to smear, in the spraying, oral, parenteral, abdominal cavity film, in intravenously, intra-arterial, subcutaneous, hypogloeeis, intramuscular, the intestines, in the sialisterium, nose, PEGization, lipid method, by suction, injection, vagina, the administration of intraocular method.HSA/GF also can discharge (as conduit or Stent) by locality, comprise subcutaneous, fat down, the joint is down and in the film, and can make sustained release dosage.Particularly, fusion rotein can be by smearing, spray administration.
The present invention relates to an albumin molecule or its mutation or fragment and a GF molecule or its mutation or fragment are merged by genetically engineered, formed fusion rotein has prolonged the transformation period without the GF that merges.For simplicity, the present invention only mentions human serum albumin (HSA) and cell growth factor (GF), i.e. the fusion rotein of formation such as people KGF, people EGF, people IGF, people PDGF, people VEGF and people SGF.Certainly the fusion rotein of other vertebrate albumin and GF formation all can be included.Preferably, at GF or its mutation or segmental N-terminal portions, behind HSA or its mutation or segmental C-terminal portions formation fusion rotein, all negative effects reach and minimize when fusion rotein and receptors bind.Have the fusion rotein that forms by GF of signal conduction, receptors bind effect equally, perhaps contain a GF or one variant or segmental fusion rotein and include in the present invention.
HSA/GF fusion rotein among the present invention or its prescription all can pass through traditional method, comprise non-mode administration through gi tract (as subcutaneous or muscle) injection or venoclysis.Treatment is included in and uses single dose or compound dosage in for some time.Fusion rotein HSA/GF among the present invention can use separately, and preferably, can become the form of pharmaceutical preparation to use with one or more acceptable carriers or another kind of HSA/GF or HSA or multiple HSA/GF.Particularly another kind of HSA/GF of described carrier or multiple HSA/GF must be compatible and receptor autophosphorylation do not produced the carrier of harmful effect." acceptable " typical carrier is water and salt solution, and it should be that aseptic, pyrogen-free does not have additionally immunogenic yet.Between the different HSA/GF,, also can consider common use when having consistency, synergetic or only rising and assist preparation to do the time spent.
The HSA/GF fusion rotein can dosage form or the easy way administration of dosage unit, also can be known and the method preparation of approval via any pharmaceutical field, and this method comprises the step that HSA/GF and the carrier with one or more auxiliary compositions are combined.Briefly say, with activeconstituents and liquid phase carrier or combination solid phase carrier, auxiliary agent or other reagent equably in conjunction with and the preparation preparation, then as required, with formed product.
Be suitable for the aseptic parenteral solution that the non-HSA/GF preparation that uses through the gi tract approach comprises water or do not contain water, can contain antioxidant, damping fluid, fungistat and solubility promoter or increase drug permeability and poiser.Moisture or water-free sterile suspensions comprises suspension agent and thickening material.Said preparation can be stored in the container of dosage unit or polynary dosage, as in the ampoule of sealing and in the tubule, stores under dried (lyophilization) condition of ice.Add aseptic liquid carrier before using,, make provisional injection liquid and suspension as water for injection.
After sending into the HSA/GF fusion rotein in the animal body, compare with the GF monomer, the transformation period of HSA/GF in blood has and is about 2 times, preferably is about 4 times, more preferably for being about 6 times, more preferably is about 10 times transformation period again.HSA/GF fusion rotein of the present invention can use jointly with the human serum albumin of or recombinant type isolating by nature.Preferably form dosage and ratio with curative effect with the human serum albumin of reorganization.
After can believing fusion, therapeutic protein has the higher transformation period and in use stops the long time at site of action, storage requirement and requirements on transport reduce when making product, can reduce cost, simultaneously than the long half-lift also can reduce using dosage and the access times of GF.
Identical strategy also can be used for researching and developing the stable product that contains fusion rotein with beautification function effect.The for example beauty treatment of skin, preserve moisture, smoothing wrinkle, wrinkle resistant, whiten.Can contain a kind of fusion rotein or two or more fusion rotein in the product combination, or other component (as HSA) also can there be ropiness increasing agent, wetting Agent for Printing Inks, emulsifying agent, sanitas etc. as host.
2) be used for the host system of HSA/GF expressing fusion protein
HSA/GF Nucleotide among the present invention can utilize the recombinant clone technology to introduce host cell, so that fusion rotein is expressed.In general, host cell changes in the host system with the mode of infection, virus infection forms such as " phages " through the various HSA/GF vector plasmids that may make up that genetic engineering (transduction or conversion or transfection) method will carry among the present invention to be mentioned.The engineering host cell can be cultivated in containing conventional nutraceutical substratum, and is beneficial to promotor through suitably revising.Select the culture condition of the nucleotide chain of transformant or amplification coding HSA/GF with the control of suitable operating method, as temperature, pH and select express cell.
By of the present invention, recombinant vectors carries the Nucleotide that comprises coding HSA/GF fusion rotein.Recombinant vectors can be an expression vector, can come expressed fusion protein by the nucleotide coding that carries in host cell.Form can be, but is not limited to, HSA/CPSA, GF/HSA, HSA/L/GF or GF/L/HSA (L=connection peptides).Host organisms and somatocyte include, but are not limited to, vertebrates (as people, monkey, mouse, rabbit etc.) fish, chicken, insect, plant, yeast, fungi and bacterium etc.
The Nucleotide of coding HSA/GF is to express the HSA/GF fusion rotein under suitable promotor effect.Available suitable promotor includes, but are not limited to, and adenovirus promoter is as the late promoter of adenovirus major; Or allogeneic promoter, as CMV promotor and RSV promotor; Inducible promoter can have MMT promotor, thermal stimulus promotor, albumin promoter, ApoAI promotor and human immunoglobulin promotor; Virus Thymine deoxyriboside enzyme promotor then has simplexvirus thymus gland kinase promoter; Retrovirus LTR promotor comprises the LTR promotor after modified; The beta-actin promotor; The human growth hormone promotor.Also available natural promoter is controlled nucleotide coding and is expressed the HSA/GF fusion rotein.
According to the present invention, reconstitution cell has the ability of expressing coding HSA/GF fusion rotein nucleotide sequence.The recombined engineering cell can be constantly or is being had or do not having under the existence of inductor and express HSA/GF, HSA/L/GF or GF/L/HSA.The recombined engineering cells form includes, but are not limited to cells such as vertebrates (being people, ox, pig, monkey, mouse, rabbit, fish, chicken etc.) insect, plant, yeast, fungi and bacterium.
The yeast belong host who preferably is used to express HSA/GF comprises, but be not limited to, yeast saccharomyces cerevisiae belongs to (Saccharomyces), pichia yeast belongs to (Phichia), genus kluyveromyces (Kluyveromyces), Candida (Candida), saccharomyces hansenii (Hancenula), spore garden yeast belong (Tarulaspora) and Schizosaccharomyces (Schizosaromyces) etc.More preferably, host system can be pichia yeast and belongs to the pasteur bacterial classification.Transfer vector plasmid can be pPICZ-A, B or C specifically.
According to selecting for use different hosts to express the HSA/GF fusion rotein.The expressed proteins polypeptide can be glycosylation or nonglycosylated among the present invention.Preferably, when obtaining expressing in host system, HSA/GF obtains expressed proteins in vertebrate cells such as Chinese hamster (CHO) be glycosylated protein.In being expressed in the pichia yeast bacterium, then be the non-glycosylated or glycosylated albumen of part.
As mentioned above, the albumin fusion protein of mentioning in the present invention preferably uses genetic engineering technique to make up and expresses.The preferred method that obtains fusion rotein is to utilize vector plasmid, comes expressed fusion protein by the mode of conversion and transfection or infection.But particularly utilize the expression vector of transformed yeast, transform pichia yeast, and fusion rotein is secreted in the nutrient solution.
Utilize the advantage of yeast expressed HSA/GF to be, the yeast system can produce the sophisticated fusion rotein of high quality, and can be secreted in the nutrient solution and be convenient to purifying.
The progress of yeast genetic engineering makes foreign gene can obtain expressing the justacrine protein product to the extracellular in yeast.Utilize the advantage of yeast expressed secreted protein to be, but be not limited to, high expression level output, protein are folding solubility, correct and are easy to scale operation and purifying.
Via albumin natural signals peptide, the HSA/GF fusion rotein can be secreted in the yeast nutrient solution.The polypeptide of HSA/GF fusion rotein can be dominated and be obtained processing by Secretory Pathway by signal peptide.Albuminous leader peptide sequences can be used in the yeast, and fusion rotein is secreted into outside the yeast.Other secretes peptide, and the α-factor secreting signal peptide as natural yeast saccharomyces cerevisiae also can be used for secreting the fusion rotein among the present invention.
Preferred embodiment is united for application saccharomyces pastorianus fungus strain and is expressed the HSA/GF fusion rotein of mentioning among the present invention.It is better than utilizing other expression system.The pichia yeast bacterium has the advantage that many higher eucaryotic cells expression systems are had, for example proteinic processing, folding, the modification after transcribing and as the large scale culturing that is easy to of culturing bacterium or yeast saccharomyces cerevisiae, with other system such as baculovirus, vertebrate cells cultivate compare have more simple and direct, express fast, output is higher.It is to have the doubly high expression level of 10-100 that pichia yeast also has the another one advantage.These characteristics make pichia yeast become very strong protein expression system.
Compare with S. cervisiae, the pichia yeast bacterium is carrying out that to excretory protein bigger advantage is arranged on the glycosylated degree.That is: pichia yeast does not have the phenomenon of excessive glycosylation.Yeast saccharomyces cerevisiae all has N-to be connected the modification of glycosyl seminose with pichia yeast.Yet few saccharides chain is added on the expressed proteins, has only 8-14 glycosyl in the pichia yeast bacterium, far is shorter than the 50-150 sweet dew sugar chain in yeast saccharomyces cerevisiae.The less glycosylated that connects in the pichia yeast bacterium takes place.The core glycosylation of yeast saccharomyces cerevisiae has the terminal thing that α-1,3 connects, and does not then have in the pichia yeast bacterium.Studies show that the glycosylated protein that is produced by yeast saccharomyces cerevisiae has stronger antigen-reactive, and make these albumen be unsuitable for being used in the use on the therapeutic purpose particularly.Certainly this also shows to have reduced with the pichia yeast bacterium and comes the worry of expressing protein in glycosylation.
Utilize pichia yeast to have many test kits to use as expression system.Easily select EasySelect as Invitrogen TMPichia yeast is expressed the examination box.There is an AOX1 promotor can make foreign gene in pichia yeast, utilize methyl alcohol to come abduction delivering on the expression vector.Also has microbiotic Zeocin resistant gene, the mark of recon alternatively simultaneously.In the present invention, the expressed fusion protein promotor is an important factors.
In the pichia yeast system, the AOX1 gene promoter is very powerful promotor.Particularly in the pichia yeast bacterium, the two kinds of alcohol oxidases of in pichia yeast, encoding altogether, AOX1 and AOX2.AOX1 has the activity that produces synthetic a large amount of alcohol oxidases (AOX1) in cell.The AOX1 expression of gene is subjected to closely control and is reached high level by methanol induction.Typically when using methyl alcohol as sole carbon source, the product of AOX1 gene just reaches 30% in all soluble proteinss.The AOX1 gene has separated and has obtained.The AOX1 gene promoter also is used for expression (Ellis etc., 1985 of vector plasmid of the present invention in order to the foreign protein of driving coding goal gene; Koutz etc., 1989, Tschopp etc., 1987a).And AOX2 and AOX1 gene have 97% homology, and its speed of growth in methyl alcohol is slower than AOX1 gene.This growth conditions slowly can be separated to Mut +(AOX1) strain.Except the AOX1 gene promoter, other promotor in the yeast also can be used for driving the HSA/GF fusion rotein.These promotors include, but are not limited to PGK1, GAPDH, Gal1, Cal10, Cyc1, PH05, TRP1, ADH1 or ADH2 gene promoter.
Expression plasmid also can be used for host bacterium simultaneously, in colibacillus DH5 α (Gibcol/BRL) and yeast host.Microbiotic Zeocin, histidine defect type substratum are applied in the various embodiments of the present invention as selective marker.
Expression vector contains the Nucleotide of coding HSA or HSA/GF fusion rotein, presses the described method transformed yeast of Invitrogen test kit bacterium.Select the yeast bacterium colony of conversion through resistance.These cells can be expressed the HSA/GF fusion rotein, in the time of in being inoculated in suitable nutrient solution, analyze the ability of these yeast expressed secretion fusion roteins in substratum.Proteinic results can be carried out in the cell cultured continuously.Or cultivate in batches finish after results in the lump, fusion rotein of the present invention through cultivate yeast expressed after, come in addition separation and purification with the albumen method of purification that can keep protein-active and drug activity.
What this also need mention be, other expression system also can be used for HSA/GF Expression of Fusion Protein of the present invention, comprise, but be not limited to, bacterium, Bacillus subtilus (B.Subtitis), yeast saccharomyces cerevisiae, kluyveromyces spp, saccharomyces hansenii, Candida, the spore torulopsis, Schizosaccharomyces, Citeromycesbaodingensis belongs to (Citeromyces), Pachysoler, Debaryomyces (Debaromyces), the strange yeast belong of plum (Metschumikowia), red teliosporeae (Rhodosporidium), colourless basidiospore belongs to (Leucosporiduum), Portugal's shape arthroderma (Botryoascus), lock is thrown yeast belong (Sporidiobolcus), Endomycopsis (Endomyucopsis), animal, plant and insect cell etc.
3) the HSA/GF fusion rotein is used separately and applied in any combination
Outside any albumen among the present invention can be used separately, also provide a kind of applied in any combination of different HSA/GF fusion roteins.
Hyperplasia, differentiation and maturation or have a certain certain kinds cell is had synergistic function when the combination of the fusion rotein of this uniqueness can provide the various kinds of cell of user soma.Especially, the different fusion roteins of HSA among the present invention and different cell growth factors formation, the result that common combination is used is hyperplasia and the maturation that stimulates various kinds of cell simultaneously.The directive action of using HSA/GF is in the signal transduction pathway of dissimilar cells or the generation approach of various kinds of cell, can only need once be used in the user on one's body after, make such as epidermic cell, keratinocyte and myocyte, fibrocyte etc. and all significantly repaired and hyperplasia.
In the present invention, the treatment function of albuminous blood plasma propagation function and GF obtains integrating because of albumen takes place to merge.When circulation time in blood, owing to merging the super stable of giving GF opposing proteasome degradation with albumin, the result has prolonged the transformation period of GF in blood greatly.Because a large amount of albuminous existence, different GF and albumin form fusion rotein, through making up the mutual interference phenomenon that can reduce and form on the less biological function.This interference phenomenon often appears at the combination between " GF monomer ".Furthermore, a GF who merges with albumin can stop the quite a long time and slowly discharged in blood system, thereby has lowered under ordinary method, when using heavy dose of single GF separately, and the acute reaction that brings, toxicity and side effect.The slow release action form of this fusion rotein, with the using dosage among the present invention, frequency injection reduces, and more selects a step to reduce the side effect of GF injection.
According to the present invention, after serum albumin and this type of GF form fusion rotein, can in entering body, reduce above-mentioned limitation because of slowly discharging in the back.In addition, such fusion rotein can make up with relative a large amount of albumin, can further alleviate central nervous system direct injection GF is entered in the body, caused strong foreseeable reaction.
Known, the cytokine of storing " exposing " is a rather unstable, and in storage the life-span extremely short.Be fully aware ofly, the stability of the fragility like this that cytokine has external be quite inconvenience, be very expensive and inconvenient to the user.In fact albumin also Chang Zuowei additive and cytokine together, it is stable to guarantee to contain the product that the product of cytokine has in long shelf storage time and the transportation preservation, reaches the useful effect intensity of cytokine with this.
The invention enables HSA/GF fusion rotein transformation period in blood to prolong, stability increases.Compound HSA/GFs is HSA and hEGF, hKGF, hIGF and the hPDGF reparation and the differentiation of various kinds of cell in the skin irritation jointly.
Particularly, the HSA/hEGF fusion rotein can form compound acting on trauma patient with the HSA/hKGF fusion rotein, and it is differentiation hyperplasia such as patient's epidermic cell and keratinocyte as a result, and the result repairs wound fast.
Alternative, according to user's needs, a kind of HSA/GF can with another kind of or multiple HSA/GF with simultaneously or mode administration successively.This dosage that is used in combination is to reach treatment or obviously have cosmetic purpose dosage, and effect is the effective dose with synergistic function.
The invention provides the description and the practice of complete use HSA/GF combined therapy, complete combination comprises first HSA/GF and second HSA/GF identical or different with first GF.For example, GF can be KGF among first HSA/GF, and second GF is EGF; Or first GF is KGF-2, and second GF is PDGF; Or first GF is IGF-1, and second GF can be FGF etc.The HSA monomer also can be used as first or second protein ingredient constitutes preparation, is used for combination preparation.
HSF/GF fusion rotein among the present invention separately or their combination can be used for treating various diseases, including, but not limited to, burn, scald, (the shallow II degree of burning, dark II degree, granulation wound), the fresh surface of a wound (comprises various knife wounds, wound, wound, the beauty and shaping surface of a wound), intractable ulcer due to diabetes or the varix etc. and gangrene, ulcer wound surface (comprising oral cavity and various skin ulcers etc.), sore carbuncle class disease is (as bedsore, acne, furuncle etc.), the cornea wound, ulcer, electric ophthalmia, the skin donor site surface of a wound, the radiation injury surface of a wound and histoorgan transplanting etc.Preferably, fusion rotein should not contain the protein sequence that can cause the human immunity reaction.
The present invention also provides needing a kind of using method of GF patient, and this method is with HSA and GF gene fusion and form fusion rotein and combine effective compound formulation by certain proportioning.This pharmaceutical formulations can use the vehicle accepted on the pharmaceutics and formulation to reach the stability that increases HSA/GF.Certainly medically receptible formulation also comprises HSA and or another or the multiple HSA/GF fusion rotein of natural and reorganization.
4) in addition, the present invention also provides and has utilized yeast more effectively to reach the HSA/GF albumen that the fusion of recombinating is manufactured on cost saving ground.The present invention also provides the method for fermentation liquor treatment, can be used for the separation, purifying of fusion rotein or the fermented liquid that simple program is handled is directly used in the making and the application of beauty and skin care, makeup.
Description of drawings
The synoptic diagram of accompanying drawing 1. synthetic hEGF and hIGF-1 gene.
Accompanying drawing 2. contains the yeast expressed plasmid DNA of HSA gene, and to form the antigen-4 fusion protein gene expression vector plasmid that has connection peptides (Linker) between this plasmid (pZYHSA-L) structure HSA and the cell growth factor.
Accompanying drawing 3.A) the pichia yeast bacterium (b) that inserts of protein standard molecular weight (a), plasmid-free, yeast expressed HSA/hEGF fusion rotein (c) and the hEGF albumen (d) of escherichia coli expression; B) yeast expressed HSA/hKGF-2 fusion rotein (e), HSA/haFGF fusion rotein (f) and HSA (g); C) the protein immunoblotting experiment of being done with mouse-anti human serum albumin monoclonal antibody (Sigma company).Yeast expressed HSA/hEGF (73kd) is fusion rotein (h); Yeast expressed human serum albumin (65kd) (i).
Accompanying drawing 4. contains the mean value of the fermented liquid of the different HSA/PDGF-B that measure to 3 results of the biological activity determination of BalBC3T3 cell, shows that HSA/PDGF-B has the function of stimulate cell growth.
Accompanying drawing 5. biological activity determination results are presented at 37 ℃ (A) or 50 ℃ (B) these fusion roteins survival time under differing temps down.Series 1 is the hEGF monomer; Series 2 is the HSA/hEGF fusion rotein; Series 3 is the HSA/hKGF-2 fusion rotein; Series 4 is the combination (each 5000IU) of HSA/hIGF and HSA/hEGF.All samples all are 10000IU.HSA/hEGF, HSA/hIGF-1 fusion rotein stimulate the biological activity determination of BalB/C3T3 hyperplasia.Measure hyperplasia quantity and synergistic function when containing GF monomer or fusion rotein or applied in any combination in the nutrient solution.
Injection experimental observation HSA/GF fusion rotein transformation period in blood in the accompanying drawing 6. animal body endosomes.
Embodiment
Embodiment 1: the molecule clone technology summary
Conventional molecule clone technology comprises the extraction of DNA, RNA, sepharose and polyacrylamide gel electrophoresis, the connection of dna fragmentation, digestion with restriction enzyme reacts equal reference literature (Maniatis, et al., " molecular cloning laboratory manual " cold spring harbor laboratory publishes, the cold spring port, New York, 1982).The purifying of plasmid DNA, the recovery of dna fragmentation etc. all adopt the preparation of commodity purification column.Enzyme that archaeal dna polymerase chain reaction (PCR) (reference literature Saikiet al., science, 230:1350,1985) is used and the PCR instrument that reacts required are Perkin Elmer product.And with reference to producer's schedule of operation.The oligonucleotide primer of dna sequencing and the required usefulness of DNA cloning is finished by functional body.Changeing buied by GIBCO/BRL company by the attitude intestinal bacteria.Yeast bacterial classification used in the present invention is all available from Invitrogen company.The transformed yeast bacterium is to be undertaken by the electricimpulse mode, and with reference to the schedule of operation of producer (Bio-Rad).
Embodiment 2: the structure of human serum albumin (HSA) genetic expression and vector plasmid
Use HSA cloning process and the test-results of contriver described in its patent of invention ZL02142881.6, ZL200410042814.8 and CN200410057313.7.The HSA sequence of GenBank retrieval numbering AY728024 is used for the present invention's HSA gene order and cell growth factor gene order producer recombination fusion protein.Use AY728024 sequence encoding HSA, can make fusion rotein obtain beyond thought the efficiently expressing in yeast.Expression plasmid (seeing Chinese patent ZL021428816 accompanying drawing 2) also is used for embodiments of the invention.
Embodiment 3: the gene Fusion of people KGF-2, EGF, IGF1, PDGF-B and bFGF and the structure of expression plasmid
The RT-PCR method that human keratinocyte Growth Factor (hKGF2), platelet-derived cell growth factor-B (hPDGF), Prostatropin (hbFGF) applications similar are explained in embodiment 1 increases from total RNA prepared product in difference source.The molecular cloning of epithelical cell growth factor (hEGF) and Insulin-Like cell growth factor-1 (hIGF-1) adopts dna sequence dna (PCR method) complete synthesizing process.The PCR product is all cloned in the pCRII vector plasmid, and through the dna sequencing analysis.
Utilize the RT-PCR technology, from the total RNA of the human embryonic fibroblast of vitro culture, amplify the gene order of human keratinocyte Growth Factor (hKGF-2), and it is cloned in the PCR product vector plasmid.The synthetic oligonucleotide primer of PCR is respectively:
Seq.ID NO.13:5 '-GCCTTAGGCTTA GCCCTTGGTCAGGACATGG-3 ' and
Seq.ID?NO.14:5’-CTCGAG TCATGAGTGGACCACCATTGG-3’
Primer design is to design according to BenBank retrieval numbering NM_004465.The PCR product includes only the maturation protein peptide coding zone of hKGF-2.And 5 ' end introduce HSA 3 ' end sequence comprises the Bsu36I restriction endonuclease sites.3 ' end at fusion rotein is introduced the XhoI site.Be convenient to the hKGF-2 gene is inserted the pZY-HSA carrier, form the structure of HSA/hKGF-2 fusion gene at Yeast expression carrier.The dna sequence dna of HSA and hKGF-2 gene fusion (Seq ID NO.1) is listed in sequence table A, and fusion rotein aminoacid sequence (Seq ID NO.2) is listed in sequence table B.
The hEGF full length sequence is to design according to GenBank retrieval numbering X04571, and adopts yeast hobby amino acid coding base, by the synthetic pcr amplification.The dna sequence dna of hEGF oligonucleotide primer is respectively:
Seq.ID?NO.15:5’-G CCTTAGGCTTAaacagcgactctgaatgtcc-3’,
Seq.ID?NO.16:
5’-GGCAGTAACCGTCGTGGGACAGCGGACATTCAGAGTCGCTGTT-3’
Seq.ID?NO.17:
5’-CCCACGACGGTTACTGCCTGCACGACGGTGTTTGCATGTACATCGAAGCTC-3’
Seq.ID?NO.18:
5’-GCCAACAACACAGTTGCATGCATACTTGTCCAGAGCTTCGATGTACATGC-3’
Seq.ID?NO.19:
5 '-GCATGCAACTGTGTTGTTGGCTACATCGGTGAACGTTGTCAGTACCGTGACC-3 ' and
Seq.ID?NO.20:
5’-A GCGGCCGCTCAACGCAGTTCCCACCATTTCAGGTCACGGTACTGACAACG-3’
DNA synthetic route and method are seen shown in Figure 2.The product of PCR is gone in the pCRII vector plasmid through the amplification rear clone, through dna sequence analysis, proves that it is identical with bibliographical information.Restriction endonuclease Bsu36I and NotI recognition site are added in the two ends (underscore) of hEGF gene respectively.The synthetic gene order is inserted in the pZY-HSA carrier.The dna sequence dna of HSA/hEGF fusion gene (Seq ID NO.3) is listed in sequence table C, and fusion rotein aminoacid sequence (Seq ID NO.4) is listed in sequence table D.This dna nucleotide sequence specially is deposited in the culture presevation council of Chinese Institute of Micro-biology with the reorganization pichia yeast bacterium that can express this fusion rotein, obtains preserving number: 2072, and as a representative of the HSA/GF fusion rotein among the present invention.
HbFGF full length gene sequence is from the total RNA of human fibroblasts, gets with the method amplification of RT-PCR, clonal expansion.The required primed DNA sequence of PCR is according to the GenBank retrieve encoded: S81809) design.The oligonucleotide primer sequence is:
Seq.ID NO.21:5 ' GCCTTAGGCTTACtgggggacc gcgggcgcgg-3 ' and
Seq.ID?NO.22:5’-AGCGGCCGCTCA GTGAGGGTCGCTCTTCTCCC-3’
Bsu36I and NotI recognition site people are the two ends that are added in clone's hbFGF gene, and the hbFGF gene DNA sequence through increasing is inserted in the pZY-HSA expression vector.Fusion rotein/hbFGF nucleotide sequence (Seq ID NO.5) is listed in sequence table E, and fusion rotein aminoacid sequence (Seq ID NO.6) is listed in sequence table F.
The hIGF-1 full length gene is in Fig. 1 mode, and is manually complete synthesis.The PCR oligonucleotide primer sequence of design is based on the GenBank retrieve encoded: NM_000618 designs:
Seq.ID?NO.23:
5’-ACCTTAGGCTTAggaccggagacgctctgcggggctgagctggtggatgctcttc-3’;
Seq.ID?NO.24:
5’-cttgttgaaataaaagcccctgtctccacacacgaactgaagagcatccaccagc-3’;
Seq.ID?NO.25:
5’-ggcttttatttcaacaagcccacagggtatggctccagcagtcggagggcgcctcag-3’;
Seq.ID NO.26:
5’-acagctccggaagcagcactcatccacgatgcctgtctgaggcgccctccgactgc-3’;
Seq.ID?NO.27:
5’-gctgcttccggagctgtgatctaaggaggctggagatgtattgcgcacccctca-3’;
Seq.ID?NO.28:
5’- AGCGGCCGCtcaagctgacttggcaggcttgaggggtgcgcaataca-3’
The RT-PCR product is cloned the carrier in pCRII after agarose gel electrophoresis is identified, and inserts the Bsu36I and the NotI site of the yeast expressed carrier of pZY-HSA after dna sequence analysis is identified.Obtain the pZY-HSA/hIGF-1 plasmid.The dna nucleotide sequence of fusion gene (Seq ID NO.7) is listed in sequence table G, and fusion rotein aminoacid sequence (Seq ID NO.8) is listed in sequence table H.
HaFGF full length gene sequence is from the total RNA of human brain, gets with the method amplification of RT-PCR, clonal expansion.The required primed DNA sequence of PCR is according to the GenBank retrieve encoded: S67291 designs.The oligonucleotide primer sequence is:
Seq ID No.29:5 '-GCCTTAGGCTTAgctgaaggggaaatcacc-3 ' and
Seq?ID?No.30:5’-AGCGGCCGCTCAGAAGAGACTGGCAGG-3’
The RT-PCR product is cloned the carrier in pCRII after agarose gel electrophoresis is identified, and inserts the Bsu36I and the NotI site of the yeast expressed carrier of pZY-HSA after dna sequence analysis is identified.Obtain the pZY-HSA/haFGF plasmid.The dna nucleotide sequence of fusion gene (Seq ID NO.9) is listed in sequence table I, and fusion rotein aminoacid sequence (Seq ID NO.10) is listed in sequence table J.
HPDGF-B full length gene sequence is from the DNA plasmid that contains this full length gene that the contriver has, and gets with the method amplification of PCR, clonal expansion.The required primed DNA sequence of PCR is according to the GenBank retrieve encoded: AH002986 designs.The oligonucleotide primer sequence is:
Seq ID No.31:5 '-GCCTTAGGCTTAaatcgctgctgggcgctc-3 ' and
Seq?ID?No.32:5’-AGCGGCCGCTAGGCTCCAAGGGTCTCC-3’
The PCR product is cloned the carrier in pCRII after agarose gel electrophoresis is identified, and inserts the Bsu36I and the NotI site of the yeast expressed carrier of pZY-HSA after dna sequence analysis is identified.Obtain the pZY-HSA/hPDGF-B plasmid.The dna nucleotide sequence of fusion gene (Seq ID NO.11) is listed in sequence table K, and fusion rotein aminoacid sequence (Seq ID NO.12) is listed in sequence table L.
Embodiment 4. has the structure of the HSA/GF fusion protein expression plasmid of connection peptides
Contain a restriction enzyme Bsu36I recognition site at the C-of HSA end, cell growth factor: hKGF-2, hEGF, hbFGF, hIGF-1, aFGF and hPDGF-B etc. all can link to each other connection peptides sequence: 3 (GGGGS) by the genetically engineered mode with HSA C-terminal protein matter sequence, and form pZYHSA-L expression vector plasmid.Way is that the BamHI site that at first will exist on the pZY-HSA vector plasmid utilizes the BamHI enzyme to cut, and enzyme is treated to blunt end then, connects the back transduction bacterium again, reaches the disappearance in BamHI site.Special oligonucleotide sequence with synthetic:
Seq ID No.33:5 '-ttaggcttaggaggaggaggatcaggaggaggaggatcaggaggaggaggatccgc-3 ' and
Seq?ID?No.34:5’-ggccgcggatcctcctcctcctgatcctcctcctcctcctgatcctcctcctcctcctaagcc-3’。
Moles such as Seq ID No.33 and 34 two oligonucleotide chains is mixed, and heating slowly cools to room temperature then.Recombinate under the oligonucleotide that contains connection peptides and the effect of pZYHSA carrier linear plasmid at ligase enzyme of cutting through Bsu36I and NotI enzyme.So just made up pZYHSA-L expression vector plasmid (accompanying drawing 1).To various hyperplasia stimulating factor genes, modify 5 ' of various cell growth factor genes respectively with PCR method and terminally be the BamHI restriction enzyme site.Directly be cloned into through the Bsu36I/BamHI double digestion again and get in the pYZ-HSA vector plasmid.The sequence of new each rho factor that inserts is connected with the sequence order of the HSA C-terminal protein matter of encoding, and all genes all can enter same reading frame and form intergenic fusion and form new HSA/L/GF dna molecular sequence like this.It can express the HSA fusion rotein of band connection peptides, and has the biological function of cell growth factor.
Embodiment 5 saccharomycetic conversions
With pichia yeast bacteria strain GS115 or X33 colony inoculation in the 50ml substratum that contains 5ml YPD nutrient solution, with 250 rev/mins speed in 30 ℃ of following overnight incubation.Get the 0.2ml overnight culture next day and transfer again in the nutrient solution of 500ml YPD, place 2 liters triangle culturing bottle.At 30 ℃ of following rotating and culturing 2-3 hours, make cell density reach OD600=1.3-1.5.Yeast is collected through centrifugal method, is resuspended in washed twice in the sterilized water of 500ml ice precooling again.Then yeast be suspended from the precooling of 20ml ice 1M Sortbitol solution washing once.
Plasmid pZY-HSA/hKGF-2, pZY-HSA/hEGF, pZY-HSA/hIGF, pZY-HSA/hbGF, pZY-HSA/aFGF or the pZY-HSA/PDGF-B that makes up in example 3 and embodiment 4 all after Pme I restriction enzyme is handled, forms the linear plasmid molecule.Yeast after getting 5ug linear plasmid DNA and 80ul handling mixes mutually and places in the pole cup of 0.2 cm thick, places on the pulse instrument.The electricimpulse condition is voltage 7500V/CM, and the electrode space time is 5-10 (ms).After electric shock was handled, the 1M Sorbitol solution that adds the precooling of 1ml ice immediately changed in the 15ml test tube in yeast then.The yeast that transforms places 30 ℃ of incubators to place 2 hours, and inoculation is coated on and contains on the antibiotic YPD plate culture medium of Zeocin then.The clone who grows through the resistance selection identifies the insertion of its gene again with molecular biology method.Protein expression is then done the protein immunoblotting detection with SDS-PAGE or with specific antibody with secretion.Different pichia yeast bacteria strains, as X-33, KM71 and protease-deficient yeast strain all can be used to express and secrete the HSA/GF fusion rotein of reorganization as SMD1168.
The characteristic of embodiment 6 yeast expressed and excretory HSA and HSA/GF fusion rotein
Several are contained remain the yeast colony of expressing gene and containing the Zeocin microbiotic respectively, have in the basic culture solution of surge capability and glycerine and cultivate.Be cultured to cell density with 300 rev/mins speed and reach OD 600=2-6.Culture is through 1500 rev/mins, centrifugal collection thalline under 15 minutes conditions, and thalline is resuspended in basic culture solution of the same race again but does not contain glycerine, changes to contain 0.5% methyl alcohol, continues to cultivate, and cell density reaches OD 600=1.0.Yeast is under the inducing of methyl alcohol, and foreign protein begins to express under the effect of promotor.Thereafter, per 24 hours add 100% methyl alcohol to ultimate density is 0.5%.Collect culture supernatant respectively at different time points.Use SDS-PAGE denaturing polyacrylamide gel electrophoresis or protein immunoblotting method to measure the HSA/GF Expression of Fusion Protein.
The result shows, the HSA/GF fusion rotein is by yeast expressed, and is secreted in the nutrient solution.The monoclonal antibody of mouse-anti human serum albumin (Sigma company) determines by expressed protein to be HSA or HSA/GF fusion rotein with the protein immunoblotting experiment.
Typical protein immunoblotting experiment is with the isolating protein of sex change (SDS) gel electrophoresis, protein transduction is moved on on nylon or the cellulose acetate film through electrophoresis apparatus, discerns corresponding protein with specific antibody (first antibody) again.First antibody is discerned and be incorporated into to the second antibody that has the fluorescent functional gene then, and through the whole specificity bonded of fluorescence developing mixture, promptly specific protein stays the marking on the X-ray sheet.The standard protein molecular weight is used to determine the molecular weight of agnoprotein.To through yeast expressed excretory HSA and HSA/hKGF-1, HSA/hEGF, HSA/hIGF-1, HSA/bFGF and HSA/hPDGF-B, can be respectively with the antigenicity of commercially available recombinant protein standard substance (middle inspection institute) relatively.The protein immunoblotting experiment of being done with the monoclonal antibody of anti-people EGF shows fusion rotein HSA/EGF and pure product hEGF (R﹠amp; D System company) has identical antigenicity, and show between the two on immune response intensity and molecular size to have identical ratio.In like manner, detect with anti-people GF antibody, identical result also is confirmed.Accompanying drawing 3 is expressed fusion protein fermented liquid electrophoresis result and end user's serum albumin specific antibody (Sigma) and human serum albumin/human epidermal growth factor (HSA/hEGF) and human serum albumin (HSA) monomer, the Western blot result who is done.On the molecular weight of the two, show the mobility of two molecules of 73Kd of the 65Kd of HSA and HSA/hEGF fairly obviously.
Purifying and the characteristic of embodiment 7 secretor type HSA/GF
Contain oozy sero-abluminous fusion rotein HSA/GF in the yeast cell (ZY-HSA/GF) of reorganization or the culture supernatant of CHO mammalian cell expression.Behind the centrifugation thalline, supernatant liquor is through the 2-10% activated carbon treatment, after collecting, concentrate and reducing salt concn, adjusts about PH to 7.5 the Affi-Gel Blue-Gel chromatography column that concentrated solution is made by Bio-Rad company.HSA or HSA/GF then combine and hang on the cylinder with function group on the chromatography column.Through washing, HSA or HSA/GF then can obtain having the pure protein formulation of 75-85% via 1-5M NaCl gradient elution.Then further by molecular sieve chromatography, can get purity and be increased to 95-99% or purer protein formulation if needed.Be used for zooperal sample then with possible thermal source such as intracellular toxin, remove, to meet the in vivo test needs by Affi-Preppolymyxin Support chromatography column (Bio-Rad).Utilize ordinary method to decide proteinic concentration, as the determination of protein concentration test kit of Bio-Rad production.The protein of final purification by the 0.2uM filter membrane to reach aseptic requirement.
The cell bio-activity determination test of embodiment 8 people HSA/GF
Testing used cell strain is the BalB/C3T3 cell strain.The EGF standard substance: purchase in Chinese biological goods calibrating institute, activity is 6800IU.RPMI-1640 substratum (pulvis): Gibco-BRL perfect medium: the R-1640 substratum that contains 10% foetal calf serum (standard HyCloneSH), 4 ℃ of refrigerators are preserved, keep substratum: contain the R-1640 substratum of 0.5% foetal calf serum (standard HyCloneSH), 4 ℃ of refrigerators are preserved.MTT solution (Sigma): be made into the solution of 5.0mg/ml with phosphate buffered saline buffer, the degerming of 0.22um membrane filtration, 4 ℃ of refrigerators are preserved; Go down to posterity the back be used in 24-48 hour titration 96 porocyte culture plates (flat, Costar), DMSO (Sigma).The BalB/C3T3 cell of taking the logarithm vegetative period makes 5.0 * 10 with perfect medium 4The single cell suspension of individual cell/ml adds in 96 orifice plates, and every hole 100ul cultivated 24 hours.Discard perfect medium, change into and keep substratum, continue to cultivate 24 hours.Standard substance and dilution of sample: respectively standard substance and sample are carried out 4 times of doubling dilutions with keeping substratum, standard substance are done 8 extent of dilution since 100 times; Sample is done 6 extent of dilution, and extension rate adjusted accordingly according to survey the situation of living in the past.Discard and keep substratum, standard solution and sample solution that dilution is good add in the 96 porocyte culture plates, and every hole 100ul, each extent of dilution do 2 repetitions, and blank only adds keeps substratum, continues to cultivate 48 hours.Add MTT solution, every hole 20ul continues to cultivate 4 hours.Discard substratum, every hole adds 100ul DMSO lysate.Measure absorption value on the inherent microplate reader in back 5 minutes in colour developing, measure wavelength 490nm.Calculate with return law of the straight line, that calculates each sample respectively partly imitates extension rate (can cause the diluted sample multiple of standard substance 50% maximum effect), and by following formula calculation result: sample tires=standard substance tire * sample partly imitate extension rate/standard substance partly imitate extension rate.
Fermented liquid can directly be carried out the biological activity determination of HSA/GF fusion rotein after activated carbon treatment, desalination, degerming.Accompanying drawing 4 is to contain the mean value of the fermented liquid of the different HSA/PDGF-B that measure to 3 results of the biological activity determination of BalBC3T3 cell, shows that HSA/PDGF-B has the function of stimulate cell growth.Accompanying drawing 5 has shown various samples (fusion rotein of fermented liquid or purifying) (as heating) front and back under the different treatment condition, the stimulating organism activity of pair cell differentiation.Test shows that the biological activity of fusion rotein and pure product hEGF numerically has the same molar ratio activity.Than living and the corresponding to ratio of its molecular weight size, this result shows that the HSA/hEGF fusion rotein has identical biological activity with pure product hEGF.Similar measuring method is used for HSA/hKGF-2, HSA/bFGF, HSA/aFGF, HSA/PDGF-B measure.Clone can be with BalB/C3T3 or BalB/MK.
Embodiment 9 measures fusion rotein (HSA/GF) in the active stability of external biological
With HSA/FGF is example, and the HSA/GF fusion rotein under 37 ℃ and 50 ℃ of conditions, in the different residence time, is measured the stability of HSA/GF.Get 10000 units by the two combination (series 4) sample of the people EGF of bacterial expression (series 1) and 10000 HSA/hEGF of unit (series 2) or 10000 HSA/hKGF-2 of unit (series 3) or two fusion rotein HSA/hEGF and HSA/hIGF-1 5000 units respectively, place and contain the 200 microlitre thin-walled test tubes that 200 microlitres do not contain the RPM1 nutrient solution of serum and other component, every temperature has 10 repetitions.Wherein one group places under 37 ℃ of conditions and is incubated, and another group places 50 ℃ of water-soluble insulations.From each group, took out one, and be placed on immediately in-80 ℃ of refrigerators and preserve in per 7 days.After treating whole sample collections, the BalBC3T3 cell is carried out biological activity determination with these samples.Test the contrast that sets up standard simultaneously.After the result shows that GF monomer and HSA form fusion molecule, biological activity difference under different storage conditions.7 week back HSA/GF still preserve its original big biological activity (accompanying drawing 5A) under 37 ℃.And the EGF monomer promptly completely loses biological activity in 1 week.Biological activity is near transformation period (accompanying drawing 5B) during 50 ℃ times 4 weeks.After showed cell somatomedin (GF) merges with serum albumin as a result, make it to preserve, the storage time prolongs.Environment there are stronger resistance and biologically stable.HSA/hKGF, HSA/hEGF or HSA/PDGF obtain similar test-results.
Being used in combination of embodiment 10HSA/GF has synergistic function
When HSA/hEGF and HSA/hIGF are used in combination, carry out measuring as the cytoactive of embodiment 8, the result show the biological activity that is used in combination HSA/hEGF greater than with the monomeric HSA/hEGF of amount (waiting mole number) to the stimulate cell growth activity.(accompanying drawing 5) has synergism (two 5000IU merge when being used in combination, and cell bio-activity is greater than 10000IU) to the cell growth-stimulating biological activity of EGF when as seen being used in combination in the presence of the IGF-1 cell growth factor.There are HSA, hEGF, hIGF, HSA/hEGF and HSA/hIGF equivalent cell to divide other cell growth-stimulating test in the contrast.
The animal toxicity test of embodiment 11HSA/GF
The rabbit acute eye irritation test is undertaken by China's " cosmetics health standard ".Rabbit 2-3kg, healthy male and female all have.0.1ml, wherein contain fusion rotein 150 micrograms of 80% purity for test agent, directly splash into rabbit conjunctiva of left eye capsule, closed gently.Right eye splashes into stroke-physiological saline solution 0.1ml.At 1,24,48,72,96 hour with 1 week the time checked right and left eyes respectively, carrying out an acute toxicity and an eye stimulus intensity ranking respectively, with 4 for the most serious, is non-stimulated with 0.Then the result shows eye conjunctiva, the iris of experimental animal and cornea under for test agent or physiological saline effect, to the stimulus intensity comparative figure of eye all between 0-0.5.The result proves nonirritant and the nontoxicity of HSA/hGF fusion rotein to animal.Tangible stimulation toxicity is not seen in the preliminary experiment that the eye that carries out with the fermented liquid that contains HSA/GF of gac, desalination and degerming stimulates yet.
The residence time (transformation period mensuration) of embodiment 12HSA/GF in animal blood
Select 2.3-2.6 kilogram rabbit for use, respectively at first day, injection 0.5ml fusion rotein injection liquid.Rabbit A injects 1,000,000 hEGF of unit (about 10 microgram protein contents); Rabbit B injects the reorganization HSA/hEGF of 1,000,000 units fusion rotein; Rabbit C injects the HSA/haFGF of 1,000,000 units; Rabbit D injects 100 microgram people HSA.
After the injection, collect blood sample every day once, survey work with the BalBC3T3 cell by the method for embodiment 8 then.Rough determination the results are shown in accompanying drawing 6.The EGF monomer is when the 1st week, and biological activity just drops to basic point.Then the transformation period was extended for about 4 weeks the fusion rotein of HSA and GF greatly.
These results show that the HSA/GF fusion rotein has the longer transformation period than exposed GF in vivo.Show that in view of the above the present invention has tangible effect on the GF of protection " exposing ".Especially, DeGrain during aFGF tested in the existing clinical II phase, it is too short that possible reason is considered to the aFGF transformation period, needs the multiple injection just can (Stegmann etc., Cardiac Vascular Regeneration, 1: 5-10,2000).GF has the long transformation period, and this should have great using value when making makeup clinically.
Embodiment 11 application of fermentation technology are expressed preparation HSA/GF fusion rotein on a large scale
Show in the experiment that the application pichia yeast is expressed and the large-scale production recombination fusion protein all will be easy to many compared with other any system.After recombinant strain was separated to, the expression of recombinant proteins strain can have Mut +And Mut sTwo kinds of forms.From cultivating on a small scale, methanol induction is in the proteic expression of different incubation time point sampling and testings.All analyze with the SDS-PAGE method for the content that secreted protein reaches in the nutrient solution in cell, to the biological activity of expression product, expression level and purity were all monitored in each step.The result shows that various HSA/GFs Expression of Fusion Protein levels in the different fermentations liquid are respectively at 50-300mg/L.
Human serum albumin (HSA) and cell growth factor (GF) form the DNA Nucleotide and the protein sequence table of fusion rotein
A.Seq ID No.1HSA/hKGF-2 fusion rotein nucleotide sequence
atgaagtgggtaacctttatttcccttctttttctctttagctcggcttattccaggggtgtgtttcgtcgagatgcac
acaagagtgaggttgctcatcggtttaaagatttgggagaagaaaatttcaaagccttggtgttgattgcctttgctca
gtatcttcagcagtgtccatttgaagatcatgtaaaattagtgaatgaagtaactgaatttgcaaaaacatgtgttgct
gatgagtcagctgaaaattgtgacaaatcacttcataccctttttggagacaaattatgcacagttgcaactcttcgtg
aaacctatggtgaaatggctgactgctgtgcaaaacaagaacctgagagaaatgaatgcttcttgcaacacaaagatga
caacccaaacctcccccgattggtgagaccagaggttgatgtgatgtgcactgcttttcatgacaatgaagagacattt
ttgaaaaaatacttatatgaaattgccagaagacatccttacttttatgccccggaactccttttctttgctaaaaggt
ataaagctgcttttacagaatgttgccaagctgctgataaagctgcctgcctgttgccaaagctcgatgaacttcggga
tgaagggaaggcttcgtctgccaaacagagactcaagtgtgccagtctccaaaaatttggagaaagagctttcaaagca
tgggcagtagctcgcctgagccagagatttcccaaagctgagtttgcagaagtttccaagttagtgacagatcttacca
aagtccacacggaatgctgccatggagatctgcttgaatgtgctgatgacagggcggaccttgccaagtatatctgtga
aaatcaagattcgatctccagtaaactgaaggaatgctgtgaaaaacctctgttggaaaaatcccactgcattgccgaa
gtggaaaatgatgagatgcctgctgacttgccttcattagctgctgattttgttgaaagtaaggatgtttgcaaaaact
atgctgaggcaaaggatgtcttcctgggcatgtttttgtatgaatatgcaagaaggcatcctgattactctgtcgtgct
gctgctgagacttgccaagacatatgaaaccactctagagaagtgctgtgccgctgcagatcctcatgaatgctatgcc
aaagtgttcgatgaatttaaacctcttgtggaagagcctcagaatttaatcaaacaaaattgtgagctttttgagcagc
ttggagagtacaaattccagaatgcgctattagttcgttacaccaagaaagtaccccaagtgtcaactccaactcttgt
agaggtctcaagaaacctaggaaaagtgggcagcaaatgttgtaaacatcctgaagcaaaaagaatgccctgtgcagaa
gactatctatccgtggtcctgaaccagttatgtgtgttgcatgagaaaacgccagtaagtgacagagtcaccaaatgct
gcacagaatccttggtgaacaggcgaccatgcttttcagctctggaagtcgatgaaacatacgttcccaaagagtttaa
tgctgaaacattcaccttccatgcagatatatgcacactttctgagaaggagagacaaatcaagaaacaaactgcactt
gttgagcttgtgaaacacaagcccaaggcaacaaaagagcaactgaaagctgttatggatgatttcgcagcttttgtag
agaagtgctgcaaggctgacgataaggagacctgctttgccgaggagggtaaaaaacttgttgctgcaagtcaagctgc
cttaggctta caagcccttggtcaggacatggtgtcaccagaggccaccaactcttcttcctcctccttctcctctcct
tccagcgcgggaaggcatgtgcggagctacaatcaccttcaaggagatgtccgctggagaaagctattctctttcacca
agtactttctcaagattgagaagaacgggaaggtcagcgggaccaagaaggagaactgcccgtacagcatcctggagat
aacatcagtagaaatcggagttgttgccgtcaaagccattaacagcaactattacttagccatgaacaagaaggggaaa
ctctatggctcaaaagaatttaacaatgactgtaagctgaaggagaggatagaggaaaatggatacaatacctatgcat
catttaactggcagcataatgggaggcaaatgtatgtggcattgaatggaaaaggagctccaaggagaggacagaaaac
acgaaggaaaaacacctctgctcactttcttccaatggtggtacactcatag
B.Seq ID No.2 HSA/hKGF-2 fusion rotein aminoacid sequence (756AA, MW:85.8Kd)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAENCDKSLHTLFG
DKLCTVATLRETYGEMADCCAKQEPGRNECFLQHKDDNPNLPRLVRPEVDVMCTAFHDNEETFLKKYLYEI
ARRHPYFYAPELLFFAKRYKAAFTECCQAADKAACLLPKLDELRDEGKASSAKQRLKCASLQKFGERAFKA
WAVARLSQRFPKAEFAEVSKLVTDLTKVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLL
EKSHCIAEVENDEMPADLPSLAADFVESKDVCKNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYET
TLEKCCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELFEQLGEYKFQNALLVRYTKKVPEVSTPTLVEV
SRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVTKCCTESLVNRRPCFSALEVDETY
VPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKATKEQLKAVMDDFAAFVEKCCKADDKETCF
AEEGKKLVAASQAALGL QALGQDMVSPEATNSSSSSFSSPSSAGRHVRSYNHLQGDVRWRKLFSFTKYFLK
IEKNGKVSGTKKENCPYSILEITSVEIGVVAVKAINSNYYLAMNKKGKLYGSKEFNNDCKLKERIEENGYN
TYASFNWQHNGRQMYVALNGKGAPRRGQKTRRKNTSAHFLPMVVHS.
C.Seq ID No.3HSA-hEGF fusion rotein nucleotide sequence
atgaagtgggtaacctttatttcccttctttttctctttagctcggcttattccaggggtgtgtttcgtcgagatgcac
acaagagtgaggttgctcatcggtttaaagatttgggagaagaaaatttcaaagccttggtgttgattgcctttgctca
gtatcttcagcagtgtccatttgaagatcatgtaaaattagtgaatgaagtaactgaatttgcaaaaacatgtgttgct
gatgagtcagctgaaaattgtgacaaatcacttcataccctttttggagacaaattatgcacagttgcaactcttcgtg
aaacctatggtgaaatggctgactgctgtgcaaaacaagaacctgagagaaatgaatgcttcttgcaacacaaagatga
caacccaaacctcccccgattggtgagaccagaggttgatgtgatgtgcactgcttttcatgacaatgaagagacattt
ttgaaaaaatacttatatgaaattgccagaagacatccttacttttatgccccggaactccttttctttgctaaaaggt
ataaagctgcttttacagaatgttgccaagctgctgataaagctgcctgcctgttgccaaagctcgatgaacttcggga
tgaagggaaggcttcgtctgccaaacagagactcaagtgtgccagtctccaaaaatttggagaaagagctttcaaagca
tgggcagtagctcgcctgagccagagatttcccaaagctgagtttgcagaagtttccaagttagtgacagatcttacca
aagtccacacggaatgctgccatggagatctgcttgaatgtgctgatgacagggcggaccttgccaagtatatctgtga
aaatcaagattcgatctccagtaaactgaaggaatgctgtgaaaaacctctgttggaaaaatcccactgcattgccgaa
gtggaaaatgatgagatgcctgctgacttgccttcattagctgctgattttgttgaaagtaaggatgtttgcaaaaact
atgctgaggcaaaggatgtcttcctgggcatgtttttgtatgaatatgcaagaaggcatcctgattactctgtcgtgct
gctgctgagacttgccaagacatatgaaaccactctagagaagtgctgtgccgctgcagatcctcatgaatgctatgcc
aaagtgttcgatgaatttaaacctcttgtggaagagcctcagaatttaatcaaacaaaattgtgagctttttgagcagc
ttggagagtacaaattccagaatgcgctattagttcgttacaccaagaaagtaccccaagtgtcaactccaactcttgt
agaggtctcaagaaacctaggaaaagtgggcagcaaatgttgtaaacatcctgaagcaaaaagaatgccctgtgcagaa
gactatctatccgtggtcctgaaccagttatgtgtgttgcatgagaaaacgccagtaagtgacagagtcaccaaatgct
gcacagaatccttggtgaacaggcgaccatgcttttcagctctggaagtcgatgaaacatacgttcccaaagagtttaa
tgctgaaacattcaccttccatgcagatatatgcacactttctgagaaggagagacaaatcaagaaacaaactgcactt
gttgagcttgtgaaacacaagcccaaggcaacaaaagagcaactgaaagctgttatggatgatttcgcagcttttgtag
agaagtgctgcaaggctgacgataaggagacctgctttgccgaggagggtaaaaaacttgttgctgcaagtcaagctgc
cttaggctta aacagcgactctgaatgtccgctgtcccacgacggttactgcctgcacgacggtgtttgcatgtacatc
gaagctctggacaagtatgcatgcaactgtgttgttggctacatcggtgaacgttgtcagtaccgtgacctgaaatggt
gggaactgcgttga
D.Seq ID No.4 HSA-hEGF fusion rotein aminoacid sequence (638AA; MW:72.7KD)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAENCDKSLHTLFGDKLCTVAT
LRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPEVDVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFA
KRYKAAFTECCQAADKAACLLPKLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTD
LTKVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMPADLPSLAADFVESKDVC
KNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEKCCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELF
EQLGEYKFQNALLVRYTKKVPQVSTPTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVT
KCCTESLVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKATKEQLKAVMDDFAA
FVEKCCKADDKETCFAEEGKKLVAASQAALGL NSDSECPLSHDGYCLHDGVCMYIEALDKYACNCVVGYIGERCQYRDL
KWWELR.
E.Seq ID No.5, HSA/hIGF-1 fusion rotein nucleotide sequence
atgaagtgggtaacctttatttcccttctttttctctttagctcggcttattccaggggtgtgtttcgtcgagatgcac
acaagagtgaggttgctcatcggtttaaagatttgggagaagaaaatttcaaagccttggtgttgattgcctttgctca
gtatcttcagcagtgtccatttgaagatcatgtaaaattagtgaatgaagtaactgaatttgcaaaaacatgtgttgct
gatgagtcagctgaaaattgtgacaaatcacttcataccctttttggagacaaattatgcacagttgcaactcttcgtg
aaacctatggtgaaatggctgactgctgtgcaaaacaagaacctgagagaaatgaatgcttcttgcaacacaaagatga
caacccaaacctcccccgattggtgagaccagaggttgatgtgatgtgcactgcttttcatgacaatgaagagacattt
ttgaaaaaatacttatatgaaattgccagaagacatccttacttttatgccccggaactccttttctttgctaaaaggt
ataaagctgcttttacagaatgttgccaagctgctgataaagctgcctgcctgttgccaaagctcgatgaacttcggga
tgaagggaaggcttcgtctgccaaacagagactcaagtgtgccagtctccaaaaatttggagaaagagctttcaaagca
tgggcagtagctcgcctgagccagagatttcccaaagctgagtttgcagaagtttccaagttagtgacagatcttacca
aagtccacacggaatgctgccatggagatctgcttgaatgtgctgatgacagggcggaccttgccaagtatatctgtga
aaatcaagattcgatctccagtaaactgaaggaatgctgtgaaaaacctctgttggaaaaatcccactgcattgccgaa
gtggaaaatgatgagatgcctgctgacttgccttcattagctgctgattttgttgaaagtaaggatgtttgcaaaaact
atgctgaggcaaaggatgtcttcctgggcatgtttttgtatgaatatgcaagaaggcatcctgattactctgtcgtgct
gctgctgagacttgccaagacatatgaaaccactctagagaagtgctgtgccgctgcagatcctcatgaatgctatgcc
aaagtgttcgatgaatttaaacctcttgtggaagagcctcagaatttaatcaaacaaaattgtgagctttttgagcagc
ttggagagtacaaattccagaatgcgctattagttcgttacaccaagaaagtaccccaagtgtcaactccaactcttgt
agaggtctcaagaaacctaggaaaagtgggcagcaaatgttgtaaacatcctgaagcaaaaagaatgccctgtgcagaa
gactatctatccgtggtcctgaaccagttatgtgtgttgcatgagaaaacgccagtaagtgacagagtcaccaaatgct
gcacagaatccttggtgaacaggcgaccatgcttttcagctctggaagtcgatgaaacatacgttcccaaagagtttaa
tgctgaaacattcaccttccatgcagatatatgcacactttctgagaaggagagacaaatcaagaaacaaactgcactt
gttgagcttgtgaaacacaagcccaaggcaacaaaagagcaactgaaagctgttatggatgatttcgcagcttttgtag
agaagtgctgcaaggctgacgataaggagacctgctttgccgaggagggtaaaaaacttgttgctgcaagtcaagctgc
cttaggctta ggaccggagacgctctgcggggctgagctggtggatgctcttcagttcgtgtgtggagacaggggcttt
tatttcaacaagcccacagggtatggctccagcagtcggagggcgcctcagacaggcatcgtggatgagtgctgcttcc
ggagctgtgatctaaggaggctggagatgtattgcgcacccctcaagcctgccaagtcagcttga
F.Seq ID No.6HSA/hIGF-1 fusion rotein aminoacid sequence (655AA:MW:74KD)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAENCDKSLHTLFGDKLCTVAT
LRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPEVDVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFA
KRYKAAFTECCQAADKAACLLPKLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTD
LTKVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMPADLPSLAADFVESKDVC
KNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEKCCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELF
EQLGEYKFQNALLVRYTKKVPQVSTPTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVT
KCCTESLVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKATKEQLKAVMDDFAA
FVEKCCKADDKETCFAEEGKKLVAASQAAL GLGPETLCGAELVDALQFVCGDRGFYFNKPTGYGSSSRRAPQTGIVDEC
CFRSCDLRRLEMYCAPLKPAKSA
G.Seq ID No.7HSA/hbFGF fusion rotein nucleotide sequence
atgaagtgggtaacctttatttcccttctttttctctttagctcggcttattccaggggtgtgtttcgtcgagatgcac
acaagagtgaggttgctcatcggtttaaagatttgggagaagaaaatttcaaagccttggtgttgattgcctttgctca
gtatcttcagcagtgtccatttgaagatcatgtaaaattagtgaatgaagtaactgaatttgcaaaaacatgtgttgct
gatgagtcagctgaaaattgtgacaaatcacttcataccctttttggagacaaattatgcacagttgcaactcttcgtg
aaacctatggtgaaatggctgactgctgtgcaaaacaagaacctgagagaaatgaatgcttcttgcaacacaaagatga
caacccaaacctcccccgattggtgagaccagaggttgatgtgatgtgcactgcttttcatgacaatgaagagacattt
ttgaaaaaatacttatatgaaattgccagaagacatccttacttttatgccccggaactccttttctttgctaaaaggt
ataaagctgcttttacagaatgttgccaagctgctgataaagctgcctgcctgttgccaaagctcgatgaacttcggga
tgaagggaaggcttcgtctgccaaacagagactcaagtgtgccagtctccaaaaatttggagaaagagctttcaaagca
tgggcagtagctcgcctgagccagagatttcccaaagctgagtttgcagaagtttccaagttagtgacagatcttacca
aagtccacacggaatgctgccatggagatctgcttgaatgtgctgatgacagggcggaccttgccaagtatatctgtga
aaatcaagattcgatctccagtaaactgaaggaatgctgtgaaaaacctctgttggaaaaatcccactgcattgccgaa
gtggaaaatgatgagatgcctgctgacttgccttcattagctgctgattttgttgaaagtaaggatgtttgcaaaaact
atgctgaggcaaaggatgtcttcctgggcatgtttttgtatgaatatgcaagaaggcatcctgattactctgtcgtgct
gctgctgagacttgccaagacatatgaaaccactctagagaagtgctgtgccgctgcagatcctcatgaatgctatgcc
aaagtgttcgatgaatttaaacctcttgtggaagagcctcagaatttaatcaaacaaaattgtgagctttttgagcagc
ttggagagtacaaattccagaatgcgctattagttcgttacaccaagaaagtaccccaagtgtcaactccaactcttgt
agaggtctcaagaaacctaggaaaagtgggcagcaaatgttgtaaacatcctgaagcaaaaagaatgccctgtgcagaa
gactatctatccgtggtcctgaaccagttatgtgtgttgcatgagaaaacgccagtaagtgacagagtcaccaaatgct
gcacagaatccttggtgaacaggcgaccatgcttttcagctctggaagtcgatgaaacatacgttcccaaagagtttaa
tgctgaaacattcaccttccatgcagatatatgcacactttctgagaaggagagacaaatcaagaaacaaactgcactt
gttgagcttgtgaaacacaagcccaaggcaacaaaagagcaactgaaagctgttatggatgatttcgcagcttttgtag
agaagtgctgcaaggctgacgataaggagacctgctttgccgaggagggtaaaaaacttgttgctgcaagtcaagctgc
cttaggctta ctgggggaccgcgggcgcggccgcgcgctgccgggcgggaggctggggggccggggccggggccgtgcc
ccggagcgggtcggaggccggggccggggccgggggacggcggctccccgcgcggctccagcggctcggggatcccggc
cgggccccgcagggaccatggcagccgggagcatcaccacgctgcccgccttgcccgaggatggcggcagcggcgcctt
cccgcccggccacttcaaggaccccaagcggctgtactgcaaaaacgggggcttcttcctgcgcatccaccccgacggc
cgagttgacggggtccgggagaagagcgaccctcactga
H.Seq ID No.8 HSA/hbFGF fusion rotein aminoacid sequence (699AA:MW:78Kd)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAENCDKSLHTLFGDKLCTVAT
LRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPEVDVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFA
KRYKAAFTECCQAADKAACLLPKLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTD
LTKVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMPADLPSLAADFVESKDVC
KNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEKCCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELF
EQLGEYKFQNALLVRYTKKVPQVSTPTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVT
KCCTESLVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKATKEQLKAVMDDFAA
FVEKCCKADDKETCFAEEGKKLVAASQAALGL LGDRGRGRALPGGRLGGRGRGRAPERVGGRGRGRGTAAPRAAPAARG
SRPGPAGTMAAGSITTLPALPEDGGSGAFPPGHFKDPKRLYCKNGGFFLRIHPDGRVDGVREKSDPH.
I.Seq ID NO.9 HSA/hPDGF-B fusion rotein nucleotide sequence
atgaagtgggtaacctttatttcccttctttttctctttagctcggcttattccaggggtgtgtttcgtcgagatgcac
acaagagtgaggttgctcatcggtttaaagatttgggagaagaaaatttcaaagccttggtgttgattgcctttgctca
gtatcttcagcagtgtccatttgaagatcatgtaaaattagtgaatgaagtaactgaatttgcaaaaacatgtgttgct
gatgagtcagctgaaaattgtgacaaatcacttcataccctttttggagacaaattatgcacagttgcaactcttcgtg
aaacctatggtgaaatggctgactgctgtgcaaaacaagaacctgagagaaatgaatgcttcttgcaacacaaagatga
caacccaaacctcccccgattggtgagaccagaggttgatgtgatgtgcactgcttttcatgacaatgaagagacattt
ttgaaaaaatacttatatgaaattgccagaagacatccttacttttatgccccggaactccttttctttgctaaaaggt
ataaagctgcttttacagaatgttgccaagctgctgataaagctgcctgcctgttgccaaagctcgatgaacttcggga
tgaagggaaggcttcgtctgccaaacagagactcaagtgtgccagtctccaaaaatttggagaaagagctttcaaagca
tgggcagtagctcgcctgagccagagatttcccaaagctgagtttgcagaagtttccaagttagtgacagatcttacca
aagtccacacggaatgctgccatggagatctgcttgaatgtgctgatgacagggcggaccttgccaagtatatctgtga
aaatcaagattcgatctccagtaaactgaaggaatgctgtgaaaaacctctgttggaaaaatcccactgcattgccgaa
gtggaaaatgatgagatgcctgctgacttgccttcattagctgctgattttgttgaaagtaaggatgtttgcaaaaact
atgctgaggcaaaggatgtcttcctgggcatgtttttgtatgaatatgcaagaaggcatcctgattactctgtcgtgct
gctgctgagacttgccaagacatatgaaaccactctagagaagtgctgtgccgctgcagatcctcatgaatgctatgcc
aaagtgttcgatgaatttaaacctcttgtggaagagcctcagaatttaatcaaacaaaattgtgagctttttgagcagc
ttggagagtacaaattccagaatgcgctattagttcgttacaccaagaaagtaccccaagtgtcaactccaactcttgt
agaggtctcaagaaacctaggaaaagtgggcagcaaatgttgtaaacatcctgaagcaaaaagaatgccctgtgcagaa
gactatctatccgtggtcctgaaccagttatgtgtgttgcatgagaaaacgccagtaagtgacagagtcaccaaatgct
gcacagaatccttggtgaacaggcgaccatgcttttcagctctggaagtcgatgaaacatacgttcccaaagagtttaa
tgctgaaacattcaccttccatgcagatatatgcacactttctgagaaggagagacaaatcaagaaacaaactgcactt
gttgagcttgtgaaacacaagcccaaggcaacaaaagagcaactgaaagctgttatggatgatttcgcagcttttgtag
agaagtgctgcaaggctgacgataaggagacctgctttgccgaggagggtaaaaaacttgttgctgcaagtcaagctgc
cttaggctta aatcgctgctgggcgctcttcctgtctctctgctgctacctgcgtctggtcagcgccgagggggacccc
attcccgaggagctttatgagatgctgagtgaccactcgatccgctcctttgatgatctccaacgcctgctgcacggag
accccggagaggaagatggggccgagttggacctgaacatgacccgctcccactctggaggcgagctggagagcttggc
tcgtggaagaaggagcctgggttccctgaccattgctgagccggccatgatcgccgagtgcaagacgcgcaccgaggtg
ttcgagatctcccggcgcctcatagaccgcaccaacgccaacttcctggtgtggccgccctgtgtggaggtgcagcgct
gctccggctgctgcaacaaccgcaacgtgcagtgccgccccacccaggtgcagctgcgacctgtccaggtgagaaagat
cgagattgtgcggaagaagccaatctttaagaaggccacggtgacgctggaagaccacctggcatgcaagtgtgagaca
gtggcagctgcacggcctgtgacccgaagcccggggggttcccaggagcagcgagccaaaacgccccaaactcgggtga
ccattcggacggtgcgagtccgccggccccccaagggcaagcaccggaaattcaagcacacgcatgacaagacggcact
gaaggagacccttggagcctag
J.Seq ID No.10 HSA/hPDGF-B fusion rotein aminoacid sequence (825AA; MW:93.6)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAENCDKSLHTLFGDKLCTVAT
LRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPEVDVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFA
KRYKAAFTECCQAADKAACLLPKLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTD
LTKVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMPADLPSLAADFVESKDVC
KNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEKCCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELF
EQLGEYKFQNALLVRYTKKVPQVSTPTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVT
KCCTESLVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKATKEQLKAVMDDFAA
FVEKCCKADDKETCFAEEGKKLVAASQAALGL NRCWALFLSLCCYLRLVSAEGDPIPEELYEMLSDHSIRSFDDLQRLL
HGDPGEEDGAELDLNMTRSHSGGELESLARGRRSLGSLTIAEPAMIAECKTRTEVFEISRRLIDRTNANFLVWPPCVEV
QRCSGCCNNRNVQCRRTQVQLRPVQVRKIEIVRKKPIFKKATVTLEDHLACKCETVAAARPVTRSPGGSQEQRAKTPQT
RVTIRTVRVRRPPKGKHRKFKHTHDKTALKETLGA.
K.Seq ID No.11 HSA/haFGF fusion rotein nucleotide sequence
atgaagtgggtaacctttatttcccttctttttctctttagctcggcttattccaggggtgtgtttcgtcgagatgcac
acaagagtgaggttgctcatcggtttaaagatttgggagaagaaaatttcaaagccttggtgttgattgcctttgctca
gtatcttcagcagtgtccatttgaagatcatgtaaaattagtgaatgaagtaactgaatttgcaaaaacatgtgttgct
gatgagtcagctgaaaattgtgacaaatcacttcataccctttttggagacaaattatgcacagttgcaactcttcgtg
aaacctatggtgaaatggctgactgctgtgcaaaacaagaacctgagagaaatgaatgcttcttgcaacacaaagatga
caacccaaacctcccccgattggtgagaccagaggttgatgtgatgtgcactgcttttcatgacaatgaagagacattt
ttgaaaaaatacttatatgaaattgccagaagacatccttacttttatgccccggaactccttttctttgctaaaaggt
ataaagctgcttttacagaatgttgccaagctgctgataaagctgcctgcctgttgccaaagctcgatgaacttcggga
tgaagggaaggcttcgtctgccaaacagagactcaagtgtgccagtctccaaaaatttggagaaagagctttcaaagca
tgggcagtagctcgcctgagccagagatttcccaaagctgagtttgcagaagtttccaagttagtgacagatcttacca
aagtccacacggaatgctgccatggagatctgcttgaatgtgctgatgacagggcggaccttgccaagtatatctgtga
aaatcaagattcgatctccagtaaactgaaggaatgctgtgaaaaacctctgttggaaaaatcccactgcattgccgaa
gtggaaaatgatgagatgcctgctgacttgccttcattagctgctgattttgttgaaagtaaggatgtttgcaaaaact
atgctgaggcaaaggatgtcttcctgggcatgtttttgtatgaatatgcaagaaggcatcctgattactctgtcgtgct
gctgctgagacttgccaagacatatgaaaccactctagagaagtgctgtgccgctgcagatcctcatgaatgctatgcc
aaagtgttcgatgaatttaaacctcttgtggaagagcctcagaatttaatcaaacaaaattgtgagctttttgagcagc
ttggagagtacaaattccagaatgcgctattagttcgttacaccaagaaagtaccccaagtgtcaactccaactcttgt
agaggtctcaagaaacctaggaaaagtgggcagcaaatgttgtaaacatcctgaagcaaaaagaatgccctgtgcagaa
gactatctatccgtggtcctgaaccagttatgtgtgttgcatgagaaaacgccagtaagtgacagagtcaccaaatgct
gcacagaatccttggtgaacaggcgaccatgcttttcagctctggaagtcgatgaaacatacgttcccaaagagtttaa
tgctgaaacattcaccttccatgcagatatatgcacactttctgagaaggagagacaaatcaagaaacaaactgcactt
gttgagcttgtgaaacacaagcccaaggcaacaaaagagcaactgaaagctgttatggatgatttcgcagcttttgtag
agaagtgctgcaaggctgacgataaggagacctgctttgccgaggagggtaaaaaacttgttgctgcaagtcaagctgc
cttaggctta gctgaaggggaaatcaccaccttcacagccctgaccgagaagtttaatctgcctccagggaattacaag
aagcccaaactcctctactgtagcaacgggggccacttcctgaggatccttccggatggcacagtggatgggacaaggg
acaggagcgaccagcacattcagctgcagctcagtgcggaaagcgtgggggaggtgtatataaagagtaccgagactgg
ccagtacttggccatggacaccgacgggcttttatacggctcacagacaccaaatgaggaatgtttgttcctggaaagg
ctggaggagaaccattacaacacctatatatccaagaagcatgcagagaagaattggtttgttggcctcaagaagaatg
ggagctgcaaacgcggtcctcggactcactatggccagaaagcaatcttgtttctccccctgccagtctcttctga
L.Seq ID No.12 HSA/aFGF fusion rotein aminoacid sequence (738AA; MW:84Kd)
DAHKSEVAHRFKDLGEENFKALVLIAFAQYLQQCPFEDHVKLVNEVTEFAKTCVADESAENCDKSLHTLFGDKLCTVAT
LRETYGEMADCCAKQEPERNECFLQHKDDNPNLPRLVRPEVDVMCTAFHDNEETFLKKYLYEIARRHPYFYAPELLFFA
KRYKAAFTECCQAADKAACLLPKLDELRDEGKASSAKQRLKCASLQKFGERAFKAWAVARLSQRFPKAEFAEVSKLVTD
LTKVHTECCHGDLLECADDRADLAKYICENQDSISSKLKECCEKPLLEKSHCIAEVENDEMPADLPSLAADFVESKDVC
KNYAEAKDVFLGMFLYEYARRHPDYSVVLLLRLAKTYETTLEKCCAAADPHECYAKVFDEFKPLVEEPQNLIKQNCELF
EQLGEYKFQNALLVRYTKKVPQVSTPTLVEVSRNLGKVGSKCCKHPEAKRMPCAEDYLSVVLNQLCVLHEKTPVSDRVT
KCCTESLVNRRPCFSALEVDETYVPKEFNAETFTFHADICTLSEKERQIKKQTALVELVKHKPKATKEQLKAVMDDFAA
FVEKCCKADDKETCFAEEGKKLVAASQAALGL AEGEITTFTALTEKFNLPPGNYKKPKLLYCSNGGHFLRILPDGTVDG
TRDRSDQHIQLQLSAESVGEVYIKSTETGQYLAMDTDGLLYGSQTPNEECLFLERLEENHYNTYISKKHAEKNWFVGLK
KNGSCKRGPRTHYGQKAILFLPLPVSS

Claims (10)

1. the fusion rotein of a human serum albumin (HSA) and cell growth factor (GF) is characterized in that, its fusion rotein for being linked to each other and constitute with cell growth factor by human serum albumin.
2. human serum albumin as claimed in claim 1 and growth factor fusion protein is characterized in that, the protein amino acid sequence of this fusion rotein and Seq ID No.2,4,6,8,10 or 12 have at least 90% sequence homology.
3. the fusion rotein of human serum albumin as claimed in claim 1 and cell growth factor, it is characterized in that, described cell growth factor is selected from epithelical cell growth factor (EGF), endothelial cell growth factor (ECGF) (VEGF), fibroblast growth factor (FGF), platelet-derived growth factor (PDGF), keratinocyte growth factor (KGF) and insulin-like growth factor (IGF).
4. human serum albumin as claimed in claim 1 and growth factor fusion protein is characterized in that, can link to each other with human serum albumin to constitute fusion rotein by a connection peptides.
5. human serum albumin as claimed in claim 4 and growth factor fusion protein is characterized in that, the length of described connection peptides is 2-50 amino acid, and preferred connection peptides is (G 4S) 3-4.
6. the fusion rotein of human serum albumin as claimed in claim 1 and cell growth factor is characterized in that described fusion rotein is a secretor type.
7. the fusion rotein of human serum albumin as claimed in claim 1 and cell growth factor is characterized in that, described fusion rotein can combine with the albuminous antibody of the AHS of specific recognition.
8. the nucleotide sequence of the fusion rotein of described human serum albumin of the claim 1 of encoding and cell growth factor has at least 90% sequence homology with Seq ID No.1,3,5,7,9 or 11.
9. carry the carrier of the nucleotide sequence of fusion rotein according to claim 1 of encoding, conversion, transfection or transduction host system, it comprises cell, yeast, virus or the bacterium of vertebrates, fish, insect, plant; Described vertebrate cells is a Chinese hamster cell; Described yeast is that yeast saccharomyces cerevisiae, pichia yeast, candida yeasts, Crewe tie up that inferior yeast, spore circle are female to belong to yeast or fission yeast; Described pichia yeast is the Bi Shi saccharomyces pastorianus, and its CGMCC preserving number is 2072.
10. preparation, contain at least a fusion rotein as claimed in claim 1, wherein said at least a HSA/GF, or two kinds of combinations that different fusion roteins is HSA/hEGF fusion rotein and HSA/KGF fusion rotein, the combination of HSA/IGF fusion rotein and HSA/PDGF fusion rotein, or the combination of HSA, HSA/IGF, HSA/FGF, HSA/EGF, HSA/PDGF, HSA/KGF, be used for beauty and skin care, wound, treatment of diseases and application.
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CN201110211843A Division CN102311503A (en) 2007-06-06 2007-06-06 Recombinant human serum albumin / FGF fusion protein with continuous effect on restoration of a plurality of skin cells
CN201310335639.0A Division CN104004096A (en) 2007-06-06 2007-06-06 Recombinant human serum albumin/platelet-derived growth factor fusion protein
CN201310335689.9A Division CN104004097A (en) 2007-06-06 2007-06-06 Recombinant human serum albumin/insulin-like growth factor fusion protein

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WO2009043277A1 (en) * 2007-09-25 2009-04-09 Tianjin Sinobiotech Ltd. Skin care composition containing hsa fusion protein, method for preparation and use thereof
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US8603973B2 (en) 2002-07-01 2013-12-10 Tianjin Sinobiotech Ltd. Skincare composition comprising HSA fusion protein, preparation method and uses thereof
WO2009043277A1 (en) * 2007-09-25 2009-04-09 Tianjin Sinobiotech Ltd. Skin care composition containing hsa fusion protein, method for preparation and use thereof
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US11859205B2 (en) 2013-05-30 2024-01-02 Ajinomoto Co., Inc. Medium for culturing stem cells
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CN105457102B (en) * 2014-09-05 2019-02-26 陕西艾美雅生物科技有限公司 The purification method for concentration and concentrate of the composite bio-active factor
CN106432509A (en) * 2016-09-13 2017-02-22 河南师范大学 RhFGF-21(recombinant human fibroblast growth factor-21) fusion protein capable of treating metabolic diseases as well as preparation method and application of rhFGF-21 fusion protein
CN106397607A (en) * 2016-09-13 2017-02-15 河南师范大学 Recombinant human fibroblast growth factor 21 fusion protein and application thereof in preparation of medicine for treating metabolic diseases
CN106432509B (en) * 2016-09-13 2019-05-21 河南师范大学 A kind of 21 fusion protein of recombinant human fibroblast growth factor and its preparation method and application for treating metabolic disease
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CN111484557A (en) * 2019-01-25 2020-08-04 武汉禾元生物科技股份有限公司 Method for separating and purifying recombinant human serum albumin-epidermal growth factor fusion protein from genetically engineered rice seeds
CN111484557B (en) * 2019-01-25 2023-07-18 武汉禾元生物科技股份有限公司 Method for separating and purifying recombinant human serum albumin-epidermal growth factor fusion protein from genetically engineered rice seeds
CN113087808A (en) * 2021-04-01 2021-07-09 芜湖英特菲尔生物制品产业研究院有限公司 Brewing yeast expression human rKGF-1-HSA fusion protein and preparation method of standard substance thereof
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