WO2006109619A1 - 5-フルオロウラシル耐性菌およびその作製方法 - Google Patents
5-フルオロウラシル耐性菌およびその作製方法 Download PDFInfo
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- WO2006109619A1 WO2006109619A1 PCT/JP2006/307102 JP2006307102W WO2006109619A1 WO 2006109619 A1 WO2006109619 A1 WO 2006109619A1 JP 2006307102 W JP2006307102 W JP 2006307102W WO 2006109619 A1 WO2006109619 A1 WO 2006109619A1
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- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
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- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
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- C12N5/10—Cells modified by introduction of foreign genetic material
Definitions
- the present invention is useful as a solid tumor therapeutic agent, can grow in a tumor tissue under an anaerobic environment, can express cytosine 'deaminase (EC3.5.4.1; hereinafter CD), and
- CD cytosine 'deaminase
- the present invention relates to a method for producing a CD-expressing 5'-FU-resistant bacterium having at least an antitumor activity effective concentration of 5-fluorouracil (hereinafter referred to as 5-FU) resistance.
- the present invention also relates to a 5-FU resistant bacterium, a pharmaceutical composition containing the resistant bacterium, and a solid tumor therapeutic agent containing the resistant bacterium.
- CD is an enzyme that deaminates cytosine to uracil (see, for example, Non-Patent Document 1).
- CD is an enzyme that plays an important role in the metabolism of microorganisms, and is separated from a plurality of different microorganisms. Mammalian cells usually do not produce this CD (see, for example, Non-Patent Document 2).
- Many bacteria and fungi that produce CD convert 5-fluorocytosine (hereinafter 5-FC) to 5-FU, a highly toxic metabolite that is lethal to cells.
- 5-FU inhibits abnormal RNA production and DNA synthesis, but the antifungal action of 5-FC is due to the abnormal RNA production and DNA synthesis inhibitory action of 5-FU.
- 5-FC is taken into fungal cells by cytosine permease, and 5-FC is immediately converted into 5-FU by CD.
- Intracellular 5-FU is converted to 5-FUDP by UMP-pyrophosphorylase via 5-FU MP.
- the phosphorylation pathway further branches into two, and on the one hand, 5-FUTP force is generated on the other hand, 5-FdUMP.
- 5-FUTP is incorporated into RNA instead of UTP to produce abnormal RNA, thereby inhibiting normal protein synthesis and consequently preventing fungal growth.
- 5-FdUMP also acts as a potent inhibitor of thymidine synthase, which inhibits DNA synthesis' fission and exerts a bactericidal effect.
- 5-FC cannot be deaminated to the toxic metabolite 5-FU, thus 5-FC has strong antibacterial activity. Even at the concentrations shown, it is non-toxic to mammalian cells.
- 5-FU is a mammalian cell It has a strong cytotoxic effect on the skin and is widely used as an anticancer agent.
- the CD gene has been isolated and cloned from Escherichia coli and Saccharomyces cerevisiae. (See, for example, Non-Patent Documents 3 and 4.) Many researchers have found that introduction of this CD gene into mammalian cells reduces the selective sensitivity of these cells to 5-FC in vitro. (For example, see Non-Patent Documents 3 and 5). It has also been shown that tumor cells introduced with a CD gene using retroviral vectors can be eliminated in vivo by systemic treatment of animals with 5-FC (see, for example, Non-Patent Documents 6-8). ).
- Non-Patent Document 9 replication-deficient adenovirus vectors (see, for example, Non-Patent Document 9) and cationic ribosomes (see, for example, Non-Patent Document 10) also introduced CD genes into human colon cancer cells and mouse giant cell lung cancer, respectively. It is used for entering. Gene expression in these tumor cells confers sensitivity to 5-FC.
- Bifidobacterium longum is a gram-positive anaerobic bacterium, and its genome has a high GC content (see, for example, Non-Patent Document 12).
- This bifido nocterum longum is non-pathogenic and constitutes the majority of normal mouth flora in the large intestine of humans and other animals (see, for example, Non-Patent Document 13).
- Non-Patent Document 14 It enhances the immune response (see, for example, Non-Patent Document 14), has an inhibitory effect on the occurrence of cancer (see, for example, Non-Patent Document 15), and also protects the host from virus infectivity (see, for example, Non-Patent Document 16, 17), and may produce antibacterial substances (for example, see Non-patent Document 18).
- Bifido pacterium species are widely fermented around the world Some are used in the preparation of dairy products.
- the bifidobatterium plasmid is expected to be applied to probiotic vectors and oral vaccine vectors for infectious diseases.
- a plasmid derived from bifidobatterium and a plasmid derived from Escherichia coli to produce a shuttle vector that mutually replicates between bifactacterium and Escherichia coli, and a target gene that encodes the target protein in the shuttle vector
- a bifactic pacterium used for the production of the shuttle vector is used as a host cell for transformation into the produced recombinant vector.
- a transformation method characterized by this is known (for example, see Patent Document 1).
- bifact pacterium longum accumulates in solid tumors of hypoxia after systemic administration (see, for example, non-patent documents 19, 20). It was revealed that the recombinant plasmid pBLES 100-S-eCD harboring Escherichia coli codA fused with CD expresses CD in microorganisms (see, for example, Patent Document 2 and Non-Patent Documents 21 and 22). This confirms that it is effective for the long-distance bifidobatterium 'longum force enzyme-prodrug therapy.
- the pBLES 100 used for the construction of the recombinant plasmid pBLESlOO—S—e CD is a shuttle vector constructed with pTB 6 of bifidobatterium 'longum BK51 and pBR322 of E. coli.
- Powerful shuttle vector 1 pBLESlOO transforms bifidobacterium longum at an effective rate of 2.2 x 10 4 transformants // z gDNA and is stable in terms of structure and segregation in the cell (For example, see Non-Patent Document 23).
- plasmids with unmodified DNA may be cleaved in microorganisms by restriction enzymes, so that a higher transformation rate is required for clones of foreign genes.
- the present inventors have proposed plasmids pAVOOl and pBRASTAlOl that can transform bifidobatterium longum with a high efficiency exceeding 100 times that of pBLES 100 (see, for example, Non-Patent Document 24). ).
- 5-FU has a strong cytotoxic effect on mammalian cells and is widely used as an anticancer agent.
- the blood concentration will be about 1 gZml or less in order to avoid side effects on the patient.
- the dose or blood concentration exceeds 1 gZml the time during which the blood concentration exceeds 1 ⁇ gZml must be at most about 1 hour.
- the conventional method has fully demonstrated the anti-cancer effect of 5-FU. Under these circumstances, there was a strong need for a means of overcoming the problem of side effects of 5-FU while treating tumors with high concentrations of 5-FU.
- Patent Document 1 Special Table 2004—519236
- Patent Document 2 Japanese Patent Laid-Open No. 2002-97144
- Non-Patent Document 1 0, Donovan et al., Bact. Rev. 34: 278 (1970)
- Non-Patent Document 2 Nishiyama et al, Cancer Res. 45: 1753 (1985)
- Non-Patent Document 3 Austin et al., Pharmacol. 43: 380 (1992)
- Non-Patent Document 4 Anderson et al., Arch. Microbiol. 152: 115 (1989)
- Non-Patent Document 5 Mullen et al., Proc. Natl. Acad. Sci. USA 89:33 (1992)
- Non-Patent Document 6 Huber et al., Cancer Res. 53: 4619 (1993)
- Non-Patent Document 7 Mullen et al., Cancer Res. 54: 1503 (1994)
- Non-Patent Document 8 Huber et al., Proc. Natl. Acad. Sci. USA 91: 8302 (1994)
- Non-Patent Document 9 Hirschowitz et al., Human Gene Ther. 6: 1055 (1995)
- Non-Patent Document 10 Davis et al., Proc. AACR Abstract No. 2355, p345 (1996)
- Non-Patent Document ll Clin. Microbiol. Rev. 11: 382-402.1998
- Patent Document 12 Scardovi, Bergey's Manual of Systematic Bacteriology vol 2, eds. Sn eath et al "pp.1418-1434 (1986)
- Non-Patent Document 13 Mitsuoka, Elsevier Applied Science, pp 69-114 (1992)
- Non-Patent Document 14 Yasui et al. J. Dairy Sci., 74, 1187-1195 (1991)
- Non-Patent Document 15 Reddy et al., Cancer Res., 53, 3914-3918 (1993)
- Non-Patent Document 16 Duffy et al., Pediatr. Res., 35, 690-695 (1994)
- Non-Patent Document 17 Saaverdra et al., Lancet., 344, 1046-1049 (1994)
- Non-Patent Document 18 discloses Japanese Patent Application Laidation (Kokakukanesutica, J. Food Prot., 56, 713-715 (1993)
- Non-Patent Document 19 Yazawa et al. Cancer Gene Ther., 7, 269-274 (2000)
- Non-Patent Document 20 Yazawa et al. Breast Cancer Res. Treat., 66, 165-170 (2001)
- Non-Patent Document 21 Nakamura et al., Biosci. Biotechnol. Biochem., 66, 2362-2366 (2002)
- Non-patent literature 22 Fujimori et al., Curr. Opin. Drug Discov. Devel., 5, 200-203 (2002)
- Non-patent literature 23 Matsumura et al., Biosci. Biotechnol. Biochem., 61, 1211-1212 (199 7)
- Non-Patent Document 24 Tanaka et al., Biosci Biotechnol Biochem.; 69 (2): 422-425 (2005, Feb)
- EnzymeZpro-drug therapy using CDZ5-FC is a treatment widely used in animal experiments and clinical trials.
- Powerful EnzymeZpro When CD gene-transfected cells (bacteria) in drug therapy have improved 5-FU resistance, they cannot be killed by 5-FU, thus improving the survival of CD gene-introduced cells (fungi), and CDZ5 —EnzymeZpro using FC—The therapeutic effect of drug therapy can be expected to improve significantly.
- the object of the present invention is to express CD that is useful as a therapeutic agent for such EnzymeZpro-drug therapy, and that can express CD and has an anti-tumor activity effective concentration of at least 5—FU resistance performance— The object is to provide a method for producing FU-resistant bacteria.
- the subject of the present invention is also a 5-FU resistant bacterium capable of overcoming the problem of side effects of 5-FU while treating a tumor with a high concentration of 5-FU, and a pharmaceutical composition containing the resistant bacterium And a solid tumor therapeutic agent containing the resistant bacteria.
- the present inventors have intensively studied in order to solve the above-mentioned problems, and subcultured a CD-expressing bacterium transformed by introducing a CD gene into a bacterium not expressing CD in the presence of 5 FC. It was found that by acclimation culture, 5-FU-resistant bacteria can be produced while maintaining CD activity. That is, when a CD-expressing bacterium is cultured with a predetermined amount of 5-FC added to the culture medium, 5-FC is gradually converted to 5-FU due to the enzymatic activity of the CD expressed along with the growth of the CD-expressing bacterium.
- the present invention provides [1] a cytosine that can grow in a tumor tissue under an anaerobic environment, can express cytosine deaminase, and has at least an antitumor activity effective concentration of 5-fluorouracil.
- cytosine deaminase expression A method for producing 5-fluorouracil-resistant bacteria, in which cytosine 'deaminase-expressing bacteria that can grow in tumor tissues in anaerobic environments are subcultured and conditioned in the presence of 5 fluorocytosine.
- cytosine deaminase-expressing bacteria that can grow in tumor tissues in an anaerobic environment can grow in tumor tissues in an anaerobic environment, and ⁇ It does not express deaminase! It is a cytosine 'deaminase expressing bacterium transformed by introducing a cytosine ⁇ deminase gene into the bacterium [1] [3] The method described in [1] or [2], wherein the method is for producing a resistant bacterium, and [3] is subcultured in a medium supplemented with 2 to 5000 ⁇ g Zml of 5 fluorocytosine.
- Cytosine 'deaminase-expressing bacteria that can grow in tumor tissue under anaerobic environment can grow in tumor tissue under anaerobic environment and express cytosine' deaminase
- the method for producing a resistant bacterium according to any one of [1] to [3], characterized by being a bacterium, and [5] capable of growing in a tumor tissue in an anaerobic environment and having cytosine The method for producing a resistant bacterium according to [4], wherein the enterococcus that expresses deaminase is an enterobacteria that expresses cytosine 'deaminase, and [6] the enterobacterium that expresses cytosine' deaminase, Bifidobatterium cells expressing cytosine deaminase [7]
- Bifidobatterum longum Bifidobatteri [13]
- the method for producing a resistant bacterium according to [14], or [16] anaerobic environment Can be grown in a tumor tissue, can express cytosine deaminase, and has at least an anti-tumor activity effective concentration of 5-fluorouracil tolerance.
- cytosine deaminase expression ⁇ Cytosine ⁇ deaminase expression ⁇ 5-Fluorouracil resistant bacteria characterized in that it is produced by the preparation method described in any one of [1] to [15].
- [17] Can grow in tumor tissue in an anaerobic environment, express cytosine deaminase, and be supplemented with at least 2 ⁇ gZml of 5 fluorocytosine or 1 ⁇ g / ml of 5 fluorouracil.
- Cytosine' deaminase expression ⁇ 5-Fluorourashinore metabibibate Batterium 'Longham, Bifidobatateru 'Brave or Bifido Batateru Cytosine 'deaminase expression described in [20] characterized by being' infantise ' ⁇ 5 Fluorouracil-resistant bacteria, and [22] Cytosine ⁇ Deaminase expression ⁇ 5-Fluorouracil-resistant Bifidobacterium spp. .
- the solid tumor therapeutic agent characterized by being a 5-fluorouracil-resistant bacterium, [34] and the solid tumor therapeutic agent according to [33], further comprising a combination of lactulose.
- FIG. 1 is a diagram showing a process of producing a shuttle vector pAVOOl of bifidobatterium and Escherichia coli, and a process of producing a shuttle vector pAVOOl-HU-eCD expressing CD.
- FIG. 2 is a diagram showing the results of comparing the expression levels of CD protein in wild-type bifidobatterium 'longum and bifidobatterium / pAVOOl-HU-eCD.
- FIG.3 Obtained from the results of comparison of CD protein enzyme activities (comparison of conversion activity of 5-FC ⁇ 5-FU) of wild-type bifidobatterium 'longum and bifidobatterium / pAVOOl-HU-eCD It is a figure which shows the aging bacteria count change obtained.
- FIG. 4 Obtained from the results of comparison of CD protein enzyme activities (comparison of the conversion activity of 5-FC ⁇ 5-FU) of wild-type bifidobatterium 'longum and bifidobatterium / pAVOOl-HU-eCD It is a figure which shows the 5-FU density
- a method for producing 5-FU-resistant bacteria CD-expressing bacteria that can grow in a tumor tissue in an anaerobic environment are subcultured in the presence of 5-FC.
- a 5-FU-resistant strain can be produced by subculturing cultivated bacteria that can grow in tumor tissue under anaerobic environment and does not express CD in the presence of 5-FU.
- the method is not particularly limited as long as it is a method B comprising the steps of: (2) introducing a CD gene into the 5-FU resistant bacterium and transforming it.
- the CD-expressing bacterium that can grow in a tumor tissue under an anaerobic environment in Method A is a bacterium that can grow in a tumor tissue under an anaerobic environment and expresses CD.
- it may be a bacterium isolated from natural forces, or it can grow in a tumor tissue in an anaerobic environment and introduce a CD gene into a bacterium that does not express CD. Even transformed recombinant bacteria.
- a bacterium that can grow in a tumor tissue under an anaerobic environment used in the method B and does not express CD it can grow in a tumor tissue under an anaerobic environment, in addition, it is not particularly limited as long as it expresses CD and is a cunning gonococcus!
- bacteria examples include bacteria (bacteria) and fungi, and examples of the bacteria include Bifido butterium bacteria, Ability to specifically illustrate intestinal bacteria such as Clostridium bacteria, Lactobacillus bacteria, Streptococcus bacteria, Peptococcus bacteria, Enterococcus bacteria, Bataterides bacteria, and Pacteria bacteria Among them, Bifidobatterium bacteria are preferred.
- Examples of the above-mentioned bacteria belonging to the genus Bifidobaterum include Bifidobatterium 'Longham, Bifidobacterium breve, Bifidobacterium breve, Bifidobatterum' address Scentis (B. adolescentis ), Bifido Batterium 'Latatentes (B. lactentis), Bifidobacterium Bifidum (B. bifidum), Bifidobacterium' Syudulongum (B. ps eudolongum), Bifido Batterium 'Thermophilum (B.
- thermophirum Bifidobacteria 'B. infantis', Bifido Batterium 'B. animalis' and the like. Among them, it is known that they are permanently present in the human intestine regardless of their ages. Bifido Batterium 'Longham, Bifido Batterium' Brebe, Bifido Bacterium 'Addresses Tei, Bifido Batterium It is preferable to use mu'bifidam, bifidobatterium 'infantis as a host fungus, and more preferred to use bifidobatterium longum.
- All of these bacteria are commercially available, or can be easily obtained from depository agencies, such as Bifido Batterium 'Longham ATCC-15707, Bifido Batterium' Bifidum ATCC-11863, Bifido Batterium 'Infantice ATCC — 15697 can be used.
- Bifido Batterium longum strains are not particularly limited, for example, Bifido Batterium 'Longham 105-A strain, Bifido Batterium' Longham aE-194b strain, Examples include Bacterium longum bs-601 strain and Bifidobatterum longum M101-2 strain, and Bifidobatterum longum 105-A strain is preferable.
- Bifido Batterium breve Bifido Batterium breve standard strain (JCM1192), Bifido Batterium breve aS-1 strain Bifido Batterium Breve I—53—8W stock can be exemplified.
- strain of bifid bataterum latatintis is not particularly limited, but for example, bifid bataterum latatintis standard strain (JCM1220) can be exemplified.
- the subculture in Method A 5 passing in the presence of FC is performed on a culture medium (culture medium or agar plate) suitable for growth and growth of bacteria and fungi, for example, 2-5000. It can be carried out by culturing anaerobic culture at 37 ° C with 5-FC in the range of ⁇ g / ml, preferably 2 to 2000 ⁇ g / ml.
- 5-B subculture in the presence of FU in the above-mentioned method B As conditioned culture, on a culture medium (culture medium or agar plate) suitable for growth and growth of bacteria and fungi, for example, 1 to : LOO ⁇ g / ml, preferably 2 to: Anaerobic culture at 37 ° C with 5-FU in the range of LOO ⁇ g / ml. In this way, 5-FU resistant bacteria can be collected with good reproducibility.
- a culture medium culture medium or agar plate
- a CD-expressing bacterium transformed by introducing a CD gene a CD-expressing vector used to prepare a bacterium transformed by introducing a gene that imparts the ability to grow in an anaerobic environment.
- transformants are commercially available, such as the gene manual (Kodansha), Takagi Yasutaka, Gene manipulation experiment method (Kodansha), Molecular 'Cloning' (Cold Spring Harbor Laboratory) (1 982), Molecular ⁇ ⁇ ⁇ Cloning 2nd edition ( Molecular Cloning, 2nd ed.) Cold Spring Spring Laboratory (1989), Methods in Enzymol., 194 (1991), Separate Experimental Medicine, Yeast Can be carried out according to the method described in Gene Experiment Method (Yodosha, 1994).
- DNA encoding CD contains, for example, plasmid pAdexlCSCD (RIKEN Genebank RDB No. 1591) containing DNA encoding CD derived from E. coli or DNA encoding CD derived from E. coli. Those isolated from plasmid pMK116 can be used (DA Mead et al., Protein Engineering 1: 67-74 (1986)).
- CD expression vectors for Bifidobacterium bacteria include recombinant plasmids carrying E. coli codA inserted downstream of the Bifidobacterium longum hup promoter pBLES 100—S—eCD ( Patent Document 1 and Non-Patent Document 21) and this pBLES 100— S—eCD improved bifido butteryum longumya bifund butteryum brave. 111; -6 0, or mutants of these plasmids can be particularly preferably exemplified.
- the plasmid pBLESlOO—S—eCD mutant is a plasmid nucleic acid sequence variant derived from pBLESlOO—S—eCD, and can be used in the present invention in the same manner as pBLESlOO—S—eCD. Means.
- the plasmid pAV001-HU-eCD variant is also a plasmid nucleic acid sequence variant derived from pAV001-HU-eCD, and in the present invention, similar to pAV001-HU-eCD. It means a plasmid that can be used for
- the CD expression '5-FU-resistant bacterium in the present invention can grow in tumor tissue in an anaerobic environment, can express CD, and has at least an antitumor activity effective concentration of 5-FU.
- the effective concentration of anti-tumor activity of 5-FU depends on the target tumor, patient, etc., but it cannot be said unconditionally. For example, a concentration of at least 0.05 to 0 .: L gZml may be exemplified. it can.
- the instructions for the commercially available 5-FU formulation include that the 5-FU formulation should be continued in patients with advanced gastric cancer so that the blood concentration of 5-FU is approximately 0.6 gZml. Intravenous injection is described.
- CD expression in the present invention 'More specific 5-FU resistance of 5-FU resistant bacteria is at least 1 to 2000 ⁇ g / ml, preferably 2 to 2000 ⁇ g / ml. — It can be grown in an anaerobic culture at 37 ° C in a culture medium (culture medium or agar plate) containing FU.
- the expression of CD in the present invention '5-FU resistance of a 5-FU resistant bacterium is specifically expressed by the concentration of 5-FC, 2 to 5000 ⁇ g / ml, preferably 3 to 5000 ⁇ . It means that it can grow in an anaerobic culture at 37 ° C in a culture medium (culture medium or agar plate) containing 5-FC in the range of g / ml.
- the expression of CD in the present invention '5-FU resistance of FU-resistant bacteria is determined by the culture medium (culture solution containing 5-FU having any numerical value within the above-mentioned numerical range of 5-FU. Or agar plates) that can grow when anaerobically cultured at 37 ° C, or a culture medium (culture solution or agar) that contains any 5-FC in the numerical range of 5-FC described above. Plate), it should be able to grow in anaerobic culture at 37 ° C.
- the CD-expressing '5-FU-resistant bacteria of the present invention can grow in a medium supplemented with at least 1 gZml of 5-fluorouracil. It is desirable that it should be able to grow on a medium supplemented with at least 2 g / ml or more of 5-fluorocytosine.
- the method for producing a CD-expressing 5-FU-resistant bacterium in the present invention is not particularly limited, and it may be isolated from nature, or the above-described method for producing a resistant bacterium of the present invention may be used. That is, the CD-expressing 5-FU resistant bacterium in the present invention may be a bacterium isolated from the natural world, or a recombinant bacterium using the above-described method for producing a resistant bacterium of the present invention. .
- the CD expression '5-FU-resistant bacterium in the present invention is capable of growing in a tumor tissue in an anaerobic environment, can express CD, and has at least an antitumor activity effective concentration of 5 -FU.
- it is not particularly limited as long as it is a bacterium or a fungus having these properties, but it is preferable to be a bacterium having such properties. More preferably, it is an enteric bacterium.
- Preferred examples include Terium bacteria, Clostridium bacteria, Lactobacillus bacteria, Streptococcus bacteria, Peptococcus bacteria, Enterococcus bacteria, Bataterides bacteria, Eunocterium bacteria, etc.
- a more preferred example is Pacteria bacteria.
- the above-mentioned bacteria belonging to the genus Bifidobaterum are specifically Bifidobatterium 'Longham, Bifidobacterium breve, Bifidobacterium breve, Bifidobatterum' address Scentis (B. adolescentis ), Bifido Batterium 'Latatentes (B. lactentis), Bifidobacterium Bifidum (B. bifidum), Bifidobacterium' Syudulongum (B. ps eudolongum), Bifido Batterium 'Thermophilum (B.
- thermophirum Bifidobacteria 'B. infantis', Bifido Batterium 'B. animalis' and the like. Among them, it is known that they are permanently present in the human intestine regardless of their ages. Bifido Batterium 'Longham, Bifido Batterium' Brebe, Bifido Bacterium 'Addresses Tei, Bifido Batterium It is preferable to use mu'bifidam, bifidobatterium 'infantis as a host fungus, and more preferred to use bifidobatterium longum.
- All of these bacteria are commercially available, or can be easily obtained from depository agencies, such as Bifido Batterium 'Longham ATCC-15707, Bifido Batterium' Bifidum ATCC-11863, Bifido Batterium 'Infantice ATCC — 15697 can be used.
- Bifido Batterium longum strains which are not particularly limited, include, for example, Bifido Batterium 'longum 105-A strain, Bifidobatterum' longum aE-194b strain, Bifidobacterium longum Examples include bs-601 strain and bifidobatterium longum M101-2 strain. Among them, bifidobatterum longum 105-A strain is preferable.
- Bifido Batterium breve Bifido Batterium breve standard strain (JCM1192)
- JCM1192 Bifido Batterium breve aS-1 strain
- Bifido Batterium Breve I—53—8W stock Bifido Batterium Breve I—53—8W stock
- strain of bifidobatterium 'latatintis' is not particularly limited, but for example, bifidobatterium' latatentis standard strain (JCM1220) can be exemplified.
- the Bifidobacterium bacterium having the above-mentioned properties is more specifically expressed by a CD expression 5-FU resistant bif, which carries the plasmid P B LESIOO-S-eCD or a plasmid variant thereof.
- Idbataterum longum 105-A strain (Bifidobatterium longum 105-A strain transformed with plasmid pBLES 100—S—eCD or its plasmid mutant), plasmid p AVOO 1 -HU- CD expression that retains eCD or its plasmid variant ⁇ 5— FU-resistant bifidobatterium 'longum 105-A strain, plasmid pAVOOl — HU— that retains eCD or its plasmid variant ⁇ 5 — FU-resistant Bifidobacterium 'breve standard strain, plasmid pAVOOl—HU— ECD or CD variant carrying the plasmid variant ⁇ 5-FU-resistant Bifidobacterium' breve aS—1 strain, plasmid pAVOO 1— HU— eCD CD expression that retains the plasmid variant ⁇ 5— FU resistant bifidobacteria breve I
- the pharmaceutical composition of the present invention is not particularly limited as long as it contains the CD-expressing 5-FU-resistant bacteria of the present invention.
- the pharmaceutical composition of the present invention may contain one or more of the CD-expressing 5-FU-resistant bacteria of the present invention.
- the CD expression of the pharmaceutical composition of the present invention is such that the dose of 5-FU resistant bacterium is sufficient to express an amount of CD that can be converted into an effective therapeutic amount of 5-FU such as 5-FC force. As long as the amount is small, there is no particular restriction, but as little as possible is preferred.
- the pharmaceutical composition of the present invention may contain an optional component in addition to the CD-expressing 5-FU-resistant bacterium of the present invention as long as the effects of the present invention are not hindered.
- optional components include pharmacologically acceptable carriers, excipients, diluents and the like.
- the pharmaceutical composition of the present invention is converted into an effective amount of 5-FU by the CD-expressing 5-FU-resistant bacteria of the present invention. It can be used in combination with an amount of 5-FC that can be included in the pharmaceutical composition of the present invention, but is preferably used in combination with a pharmaceutical composition containing 5-FC.
- the pharmaceutical composition of the present invention can display, for example, lactulose as such a saccharide, which can be combined with the saccharide capable of promoting the growth of the CD-expressing 5-FU-resistant bacteria of the present invention. .
- X and Y in different forms and Y having the same form (for example, a form containing X and Y). Including cases.
- both X and Y may contain other components.
- the CD-expressing 5-FU resistant bacterium of the present invention grows in the tumor.
- 5-FC is administered to a patient while the resistant bacteria are present in the tumor
- 5-FC is converted to 5-FU by the action of CD in the tumor, and the tumor cells are killed.
- CD expression of the present invention 5 FU-resistant bacteria can kill tumor cells 5— Survives even at FU concentrations and can sustain the enzyme action by CD. An excellent antitumor agent comprising FU resistant bacteria as an active ingredient can be obtained.
- the CD-expressing 5-FU-resistant bacteria cannot grow in the portion other than the tumor in an anaerobic environment where the CD-expressing 5-FU-resistant bacteria of the present invention can grow.
- the overall side effects of 5-FU can be significantly reduced compared to when 5-FU is administered as it is. Furthermore, since the antitumor effect of the solid tumor therapeutic agent of the present invention is high and specific for tumors, it has a much higher 5-FU concentration than when 5-FU is administered as it is. It can be realized within the tumor, and as a result, an extremely excellent antitumor effect can be obtained.
- Examples of the dosage form of the pharmaceutical composition of the present invention include a liquid or solid preparation containing the CD-expressing 5-FU resistant bacterium of the present invention.
- a liquid or solid preparation containing the CD-expressing 5-FU resistant bacterium of the present invention.
- purify the CD expression • 5--FU resistant bacterial culture of the present invention and fill it with ample or vials with appropriate physiological saline solution or supplement or medicine additive as necessary.
- the appropriate protective agent is added to the solution and filled in ampoules or vials, and then freeze-dried or L-dried. It can be manufactured by adding a protective agent and freeze-drying or L-drying and filling it into ampoules or vials.
- parenteral administration is preferred, for example, subcutaneous injection, intravenous injection, local injection, intraventricular administration, and the like, and intravenous injection is most preferred.
- the pharmaceutical composition of the present invention is used in combination with 5-FC.
- the administration method of the pharmaceutical composition of the present invention and the administration method of 5-FC may be the same or different, and the administration may be simultaneous or at intervals.
- FC is preferably administered after the administration of the pharmaceutical composition of the present invention, and after allowing sufficient time for the CD-expressing 5-FU-resistant bacteria of the present invention to grow sufficiently in tumor cells.
- the dose of 5-FC used in combination with the pharmaceutical composition of the present invention can be converted from 5-FC to an effective therapeutic amount of 5-FU by the CD-expressing 5-FU-resistant bacteria of the present invention.
- the amount is not particularly limited as long as the amount is sufficient, but it is preferable that the amount is as small as possible.
- a force in the range of 5 to 200 mgZkg can be selected as appropriate.
- the pharmaceutical composition of the present invention can be used in combination with a saccharide that promotes the growth of the CD-expressing 5-FU resistant bacterium of the present invention, and examples of such saccharide include lactulose. Can do. Such saccharides may be administered simultaneously or at separate intervals as another pharmaceutical composition that may be contained and administered in the pharmaceutical composition of the present invention.
- Bifido Batterium 'Longam and Escherichia coli shuttle vector pBLES 100 see Patent Document 2 and Non-Patent Document 23
- Scal was added to the forward primer and Eaml 1051 restriction enzyme site was added to the reverse primer.
- the cloning vector pGFPuv (DEFINI TION: Cloning vector pGFPuv. ACCESSION: U62636 VERSION: U62636.1 GI: 14 90528) purchased from Invitrogen is a multicloned gene at both ends. -Multi-Cloning Site (MCS), ampicillin resistance gene, and E. coli plasmid replication origin.
- MCS Multi-Cloning Site
- the ampicillin metagene site of pGFPuv was cleaved with restriction enzymes Eaml 1051 and Seal to prepare a long fragment that was removed.
- a fragment (about HOObp) containing an AAD cassette obtained by cleaving pCRTOPO-Seal-AAD-Earn 11051 was prepared using restriction enzymes Eaml 1051 and Seal.
- PGFP uv- SpR was prepared by ligating the above two fragments using T4DNA ligase. It was confirmed in Escherichia coli that the prepared plasmid pGFPuv-SpR was imparted with a spectinomycin-resistant trait, and at the same time the ampicillin-resistant trait was deleted.
- pGFPuv—SpR was digested with the restriction enzymes Sail (present in the multicloning site upstream of the GFPuv gene) and Spel (present in the multicloning site downstream of the GFPuv gene), and the plasmid pAVN from which the GFPuv gene was deleted was obtained. Produced.
- An approximately 1900 bp sequence containing SDO, DDO, AT—rich repeats and DnaA-binding motifs was identified as a plasmid replication unit for bifidobatterium longum.
- a pCRTOPO-Apal-1900-Seal that was subcloned into the pCR-Bluntn-TOPO vector was prepared by PCR amplification of about 1900 bp containing the plasmid replication unit of Bifido Batterium 'longum from pTB6.
- Apal restriction enzyme site was added to the foreprimer primer and Apal, respectively.
- pCRTOP O-Apal 1900 Short fragment (about 1900 bp) digested with restriction enzymes Apal and Seal, as well as the long fragment (about 2400 bp) digested with restriction enzymes Apal and Seal, using T4DNA ligase In this way, a bifluid baterilium 'longum-E. Coli shuttle vector pAVOOl (about 4300 bp) was prepared.
- pBLES100-S-eCD was cleaved with the restriction enzymes Hindlll and Spel, and about 2900 bp including the HU gene promoter motor, the CD gene derived from E. coli and the HU gene terminator was extracted.
- the pAVOO1—HU— pAVOO1—HU— was combined with the above 2900 bp fragment using the T4DNA ligase to the long fragment obtained by cleaving the shuttle vector pAVOOl with Hindlll and Spel at the restriction enzyme cleavage site in the multicloning site.
- An eCD (about 71 OObp) was prepared.
- the bacterial cells were separated by centrifugation from a culture solution obtained by culturing wild-type bifidobatterium longum in an MRS medium at 37 ° C under anaerobic conditions, and a bacterial suspension suspended in an appropriate buffer solution was prepared.
- the cytosine 'deaminase gene expression vector pAVOO 1 -HU-eCD was introduced into the cell suspension using the electopore position method described in Non-Patent Document 23.
- Recombinant Bifido Batterium longum (Bifido Batterium longum / p AVOO 1 -HU-eCD) introduced is selected based on the formation of agar on an agar medium containing the antibiotic spectinomycin did.
- Bifluid Batterium Longum / p AVOO 1 -HU- eCD or wild-type Bifidobacterium longum, MRS medium containing antibiotic spectinomycin, respectively Subcultured for more than 2 days under anaerobic conditions at 37 ° C
- the bacterial cells (1 ⁇ 10 9 CFU) were separated by centrifugation, and after sonication, the intracellular proteins were extracted.
- the extracted protein was separated by SDS-polyacrylamide gel electrophoresis, and the expression of cytosine 'deaminase protein was confirmed by Western analysis.
- Bifluid Batterium Longum / p AVOO 1 -HU- eCD or wild-type Bifidobacterium longum, MRS medium containing antibiotic spectinomycin, respectively Subcultured for more than 2 days under anaerobic conditions at 37 ° C
- the cells (2 ⁇ 10 9 CFU) were separated by centrifugation and resuspended in 4.5 mL of MRS medium.
- 0.5 mL of 5-FC (20 mgZmL) was added to a final concentration of 2 mgZmL, and the cells were cultured under anaerobic conditions at 37 ° C.
- the stored bacteria had grown on the next day and maintained resistance to 5-FU.
- the number of viable bacteria was measured using a plate assay method after culture, the wild type was below the detection limit (10 3 CFU / mL or less).
- the stored bacterial solution was 2 to 3 X 10 9 CF UZmL bacteria have grown.
- 5-FU is respectively applied on BL agar medium without BL agar medium and 5-FU included 250 ⁇ g / mL, 37 ° Raw after 2-3 days anaerobic culture in C The number of bacteria was measured. The experiment was performed in 5 series. The results are shown in Table 3. As can be seen from the results in Table 3, the 5-FU resistance traits of 5-FU-resistant bifidobatterium longum were maintained even after 30 days of continuous subculture.
- Bifact pacterium longum from reference example 1 Zp AVOO 1 -HU- eCD (5-FU non-tolerant bifact pacterium longum) and bifido batterium longum obtained in Example 1 Zp AVOOl-HU-eCD (5-FU-resistant bifido pacteria longum) was subcultured for more than 2 days under anaerobic conditions at 37 ° C in MRS medium containing antibiotic spectinomycin. After that, 50 L of each culture was inoculated into MRS medium containing 5, 25, 50, 100, 250, 500 gZmL of 5-FC and cultured under anaerobic conditions at 37 ° C for 24 hours.
- 5-FU-resistant bifactacterium longum was prepared at each 5-FU concentration.
- 5-FU-resistant bifatebatterium 'longum prepared in a medium containing 1-: L 00 ⁇ g / mL of 5 -FU was transformed into 5-FU in the same manner as the 5-FU-resistant strain obtained in Example 1. It was resistant.
- the 5-FU resistant strain obtained in Example 2 was transformed in the same manner as in Reference Example 1, and the expression of cytosine deaminase was confirmed.
- the produced 5-FU resistant strain that expresses cytosine deaminase is resistant to 5-FU as in the 5-FU resistant strain obtained in Example 1, and its 5-FU resistant performance is at least 7 days. It was maintained above.
- a 5-FU resistant bacterium such as a Bifidobacterium genus that is extremely useful for EnzymeZpro-drug therapy using CDZ5-FC and retains CD activity and is resistant to 5-FU.
- a cancer patient is administered a Bifidopacteria bacterium that retains CD activity and is resistant to 5-FU
- the Bifidopacteria bacterium grows in the tumor and is present in the tumor.
- 5-FC is orally administered, it is absorbed from the intestinal tract, and the ability of CD in the tumor to convert 5-FC to 5-FU and kill the tumor cells.
- the 5-FU-resistant Bifidobacterium bacteria can survive and continue the enzyme action by CD.
- An excellent antitumor agent as an active ingredient can be obtained.
- 5-FC is not converted to 5-FU, so compared with the case where 5-FU is administered as it is.
- 5-Side effects caused by FU can be significantly reduced.
- the antitumor effect of the solid tumor therapeutic agent of the present invention is high and specific for tumors, it has a much higher 5-FU concentration than when 5-FU is administered as it is. It can be realized in the tumor, and as a result, an extremely excellent antitumor effect can be obtained.
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JP2007512917A JP4945440B2 (ja) | 2005-04-08 | 2006-04-04 | 5−フルオロウラシル耐性菌およびその作製方法 |
ES06731050.8T ES2438565T3 (es) | 2005-04-08 | 2006-04-04 | Bacterias resistentes a 5-fluorouracilo y método para su producción |
EP06731050.8A EP1867714B1 (en) | 2005-04-08 | 2006-04-04 | 5-fluorouracil-resistant bacteria and method for production thereof |
KR1020077025746A KR101302088B1 (ko) | 2005-04-08 | 2006-04-04 | 5-플루오로우라실 내성균 및 그 제조방법 |
CN200680011344.6A CN101155911B (zh) | 2005-04-08 | 2006-04-04 | 5-氟尿嘧啶耐受菌及其制备方法 |
CA2603453A CA2603453C (en) | 2005-04-08 | 2006-04-04 | 5-fluorouracil-resistant bacteria and method for production thereof |
DK06731050.8T DK1867714T3 (da) | 2005-04-08 | 2006-04-04 | 5-fluoruracilresistente bakterier og fremgangsmåde til produktion deraf |
US11/910,880 US8734779B2 (en) | 2005-04-08 | 2006-04-04 | 5-fluorouracil-resistant bacteria and method for production thereof |
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EP (1) | EP1867714B1 (ja) |
JP (1) | JP4945440B2 (ja) |
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CN (1) | CN101155911B (ja) |
CA (1) | CA2603453C (ja) |
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Cited By (3)
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WO2007136107A1 (ja) | 2006-05-24 | 2007-11-29 | Anaeropharma Science Inc. | 遺伝子輸送担体作製方法 |
WO2010119936A1 (ja) * | 2009-04-17 | 2010-10-21 | 株式会社アネロファーマ・サイエンス | 偏性嫌気性に変異化された乳酸菌およびその作製方法ならびに偏性嫌気性乳酸菌で機能する発現ベクター |
KR20170002403A (ko) | 2014-05-01 | 2017-01-06 | 가부시키가이샤 아네로파마·사이엔스 | 이종 폴리펩티드 발현 카세트 |
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CN102046791B (zh) | 2008-04-17 | 2013-09-18 | 阿内罗药物科学株式会社 | 表达载体 |
CZ309218B6 (cs) * | 2014-08-26 | 2022-06-01 | Univerzita Palackého v Olomouci | Způsob stanovení aktivity enzymů přeměňujících cytosinové deriváty na uracilové deriváty v buňkách a tkáních |
US9616114B1 (en) | 2014-09-18 | 2017-04-11 | David Gordon Bermudes | Modified bacteria having improved pharmacokinetics and tumor colonization enhancing antitumor activity |
US10676723B2 (en) | 2015-05-11 | 2020-06-09 | David Gordon Bermudes | Chimeric protein toxins for expression by therapeutic bacteria |
US11129906B1 (en) | 2016-12-07 | 2021-09-28 | David Gordon Bermudes | Chimeric protein toxins for expression by therapeutic bacteria |
US11180535B1 (en) | 2016-12-07 | 2021-11-23 | David Gordon Bermudes | Saccharide binding, tumor penetration, and cytotoxic antitumor chimeric peptides from therapeutic bacteria |
US11471497B1 (en) | 2019-03-13 | 2022-10-18 | David Gordon Bermudes | Copper chelation therapeutics |
US10973908B1 (en) | 2020-05-14 | 2021-04-13 | David Gordon Bermudes | Expression of SARS-CoV-2 spike protein receptor binding domain in attenuated salmonella as a vaccine |
WO2024187069A1 (en) * | 2023-03-08 | 2024-09-12 | University Of Florida Research Foundation, Incorporated | Engineering enterobacteria to site-specifically activate the anticancer prodrug 5-fluorocytosine for treating colon cancer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002097144A (ja) | 2000-09-21 | 2002-04-02 | Jun Amano | 嫌気性菌を用いた遺伝子治療用医薬 |
JP2004519236A (ja) | 2001-02-24 | 2004-07-02 | ビフィド、カンパニー、リミテッド | ビフィドバクテリウム由来の新規なプラスミド、これを利用した組換え発現ベクターおよび形質転換方法 |
JP2004339677A (ja) | 2003-04-25 | 2004-12-02 | Chisso Corp | 難燃性繊維及びそれを用いた繊維成形体 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6110737A (en) * | 1988-02-02 | 2000-08-29 | The Regents Of The University Of California | Human platelet-derived growth factor receptor, type A |
US6190657B1 (en) * | 1995-06-07 | 2001-02-20 | Yale University | Vectors for the diagnosis and treatment of solid tumors including melanoma |
US6080849A (en) * | 1997-09-10 | 2000-06-27 | Vion Pharmaceuticals, Inc. | Genetically modified tumor-targeted bacteria with reduced virulence |
AU749695B2 (en) * | 1997-09-10 | 2002-07-04 | Vion Pharmaceuticals, Inc. | Genetically modified tumor-targeted bacteria with reduced virulence |
WO2001014579A2 (en) * | 1999-08-26 | 2001-03-01 | Vion Pharmaceuticals, Inc. | Compositions and methods for delivery of an agent using attenuated salmonella containing phage |
US6962696B1 (en) * | 1999-10-04 | 2005-11-08 | Vion Pharmaceuticals Inc. | Compositions and methods for tumor-targeted delivery of effector molecules |
CA2342040C (en) * | 2000-09-21 | 2012-07-10 | Kyowa Hakko Kogyo Co., Ltd. | Anaerobic bacterium as a drug for cancer gene therapy |
-
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002097144A (ja) | 2000-09-21 | 2002-04-02 | Jun Amano | 嫌気性菌を用いた遺伝子治療用医薬 |
JP2004519236A (ja) | 2001-02-24 | 2004-07-02 | ビフィド、カンパニー、リミテッド | ビフィドバクテリウム由来の新規なプラスミド、これを利用した組換え発現ベクターおよび形質転換方法 |
JP2004339677A (ja) | 2003-04-25 | 2004-12-02 | Chisso Corp | 難燃性繊維及びそれを用いた繊維成形体 |
Non-Patent Citations (33)
Title |
---|
"Idenshi Manyuaru", KODANSHA |
"Idenshi Sosa Jikkenhou", KODANSHA |
"Jikken Igaku bessatsu, Kobo niyoru Idenshi Jikkenhou", 1994, YODOSHA |
"Mitsuoka", 1992, ELSEVIER APPLIED SCIENCE, pages: 69 - 114 |
"Molecular Cloning", 1982, COLD SPRING HARBOR LABORATORY |
"Molecular Cloning", 1989, COLD SPRING HARBOR LABORATORY |
ANDERSON ET AL., ARCH. MICROBIOL., vol. 152, 1989, pages 115 |
AUSTIN ET AL., PHARMACOL., vol. 43, 1992, pages 380 |
CLIN. MICROBIOL. REV., vol. 11, 1998, pages 382 - 402 |
D.A.MEAD ET AL., PROTEIN ENGINEERING, vol. 1, 1986, pages 67 - 74 |
DAVIS ET AL., PROC. AACR ABSTRACT NO.2355, 1996, pages 345 |
DUFFY ET AL., PEDIATR. RES., vol. 35, 1994, pages 690 - 695 |
FUJIMORI ET AL., CURR. OPIN. DRUG DISCOV. DEVEL., vol. 5, 2002, pages 200 - 203 |
HIRSCHOWITZ ET AL., HUMAN GENE THER., vol. 6, 1995, pages 1055 |
HUBER ET AL., CANCER RES., vol. 53, 1993, pages 4619 |
HUBER ET AL., PROC. NATL. ACAD. SCI. USA, vol. 91, 1994, pages 8302 |
IBRAHIM ET AL., J. FOOD PROT., vol. 56, 1993, pages 713 - 715 |
MATSUMURA ET AL., BIOSCI. BIOTECHNOL. BIOCHEM., vol. 61, 1997, pages 1211 - 1212 |
METHODS IN ENZYMOLOGY, 1991, pages 194 |
MULLEN ET AL., CANCER RES., vol. 54, 1994, pages 1503 |
MULLEN ET AL., PROC. NATL. ACAD. SCI. USA, vol. 89, 1992, pages 33 |
NAGLE D.P. ET AL.: "5-Fluorouracil-resistant strain of Methanobacterium thermoautotrophicum", J. BACTERIOL., vol. 169, no. 9, 1987, pages 4119 - 4123, XP003002948 * |
NAKAMURA ET AL., BIOSCI. BIOTECHNOL. BIOCHEM., vol. 66, 2002, pages 2362 - 2366 |
NISHIYAMA ET AL., CANCER RES., vol. 45, 1985, pages 1753 |
O'DONOVAN ET AL., BACT.REV., vol. 34, 1970, pages 278 |
REDDY ET AL., CANCER RES., vol. 53, 1993, pages 3914 - 3918 |
SAAVERDRA ET AL., LANCET., vol. 344, 1994, pages 1046 - 1049 |
SCARDOVI ET AL., BERGEY'S MANUAL OF SYSTEMATIC BACTERIOLOGY, vol. 2, 1986, pages 1418 - 1434 |
See also references of EP1867714A4 * |
TANAKA ET AL., BIOSCI BIOTECHNOL BIOCHEM., vol. 69, no. 2, February 2005 (2005-02-01), pages 422 - 425 |
YASUI ET AL., J. DAIRY SCI., vol. 74, 1991, pages 1187 - 1195 |
YAZAWA ET AL., BREAST CANCER RES. TREAT., vol. 66, 2001, pages 165 - 170 |
YAZAWA ET AL., CANCER GENE THER., vol. 7, 2000, pages 269 - 274 |
Cited By (7)
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WO2007136107A1 (ja) | 2006-05-24 | 2007-11-29 | Anaeropharma Science Inc. | 遺伝子輸送担体作製方法 |
EP2468861A1 (en) | 2006-05-24 | 2012-06-27 | Anaeropharma Science Inc. | Method of constructing gene transport support |
US8911721B2 (en) | 2006-05-24 | 2014-12-16 | Anaeropharma Science, Inc. | Method of constructing gene transport support |
WO2010119936A1 (ja) * | 2009-04-17 | 2010-10-21 | 株式会社アネロファーマ・サイエンス | 偏性嫌気性に変異化された乳酸菌およびその作製方法ならびに偏性嫌気性乳酸菌で機能する発現ベクター |
US8338162B2 (en) | 2009-04-17 | 2012-12-25 | Anaeropharma Science, Inc. | Obligately anaerobic mutant lactic acid bacterium and preparation method therefor, and expression vector functioning in obligately anaerobic lactic acid bacterium |
KR20170002403A (ko) | 2014-05-01 | 2017-01-06 | 가부시키가이샤 아네로파마·사이엔스 | 이종 폴리펩티드 발현 카세트 |
US10443061B2 (en) | 2014-05-01 | 2019-10-15 | Anaeropharma Science, Inc. | Heterologous polypeptide expression cassette |
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Publication number | Publication date |
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KR20080006583A (ko) | 2008-01-16 |
US8734779B2 (en) | 2014-05-27 |
US20090280091A1 (en) | 2009-11-12 |
PT1867714E (pt) | 2013-12-05 |
JP4945440B2 (ja) | 2012-06-06 |
KR101302088B1 (ko) | 2013-08-30 |
CA2603453C (en) | 2015-01-27 |
EP1867714A4 (en) | 2008-12-31 |
CA2603453A1 (en) | 2006-10-19 |
ES2438565T3 (es) | 2014-01-17 |
DK1867714T3 (da) | 2013-12-09 |
CN101155911A (zh) | 2008-04-02 |
JPWO2006109619A1 (ja) | 2008-11-06 |
EP1867714A1 (en) | 2007-12-19 |
EP1867714B1 (en) | 2013-09-18 |
CN101155911B (zh) | 2015-08-26 |
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