CN108794591A - A kind of biologically active polypeptide GGEPFLN and its preparation method and application - Google Patents

A kind of biologically active polypeptide GGEPFLN and its preparation method and application Download PDF

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CN108794591A
CN108794591A CN201810712676.1A CN201810712676A CN108794591A CN 108794591 A CN108794591 A CN 108794591A CN 201810712676 A CN201810712676 A CN 201810712676A CN 108794591 A CN108794591 A CN 108794591A
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ggepfln
biologically active
active polypeptide
polypeptide
inflammatory
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CN108794591B (en
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张少辉
张伯宇
占文静
范梦珠
汪超
李阜烁
李婉茹
陈静
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Zhejiang Peptide Life Health Science And Technology Co Ltd
Shanghai Platinum Hui Biological Technology Co Ltd
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Zhejiang Peptide Life Health Science And Technology Co Ltd
Shanghai Platinum Hui Biological Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/195Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
    • C07K14/335Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Lactobacillus (G)
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/17Amino acids, peptides or proteins
    • A23L33/18Peptides; Protein hydrolysates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/64Proteins; Peptides; Derivatives or degradation products thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P39/00General protective or antinoxious agents
    • A61P39/06Free radical scavengers or antioxidants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/08Anti-ageing preparations
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides

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Abstract

The present invention relates to albumen fields, and in particular to its amino acid sequence of a kind of biologically active polypeptide GGEPFLN and its preparation method and application, biologically active polypeptide GGEPFLN is Gly-Gly-Glu-Pro-Phe-Leu-Asn.By extracorporeal anti-inflammatory activity experiment, internal Antisenility Experiment, demonstrating polypeptide GGEPFLN has preferable anti-inflammatory activity and activity of fighting against senium, on the one hand, the biologically active polypeptide GGEPFLN of the present invention can promote Factor of Macrophage, promote the increase of the macrophage nitric oxide amount of inducing, the ability that body resists extraneous pathogenic infection is improved, body incidence is reduced;On the other hand, the vigor of internal anti-peroxidation enzyme system can be improved, enhance the function that body resists external source sexual stimulus, to reduce organism aging process, aging and sick probability, there is anti-inflammatory properties, the food of anti-senescence function, health products and drug to have a very important significance exploitation.

Description

A kind of biologically active polypeptide GGEPFLN and its preparation method and application
Technical field
The present invention relates to albumen fields, more particularly, to a kind of biologically active polypeptide GGEPFLN and preparation method thereof and answer With.
Background technology
During cow's milk is through lactobacillus-fermented, a part of protein in cow's milk is metabolized by lactic acid bacteria to be utilized, concurrently A series of biochemical reactions have been given birth to, so that protein is become polypeptide or free amino acid, is digested or passes through The absorption and transport of intestinal epithelial cell is directly entered the blood circulation of human body.There is also the eggs of some itself synthesis for lactic acid bacteria thalline White matter polypeptide fragment is utilized for bacterial growth.In these polypeptides, some is referred to as " raw with special physiological function Object active peptide ".
It is particularly important that safe biologically active peptide is found in natural food source.In recent years, it has been found that some foods The polypeptides matter in object source has good bioactivity, such as corn small peptide, soybean peptide, cow's milk polypeptide.These polypeptides can To be obtained by number of ways such as microbial fermentation, digestion enzymolysis, and biologically active polypeptide is by 2~20 mostly Amino acid residue forms, and molecular weight is less than 6000Da, contains a certain amount of hydrophobic amino acid, aromatic amino acid.
Immune-active peptides are to obtain and prove that one kind biology of its physiological activity is living from breast for the first time after opioid peptides discovery Property polypeptide.Jolles in 1981 et al. has found for the first time, using trypsin hydrolysis people lactoprotein, can obtain an amino acid sequence It is classified as the hexapeptide of Val-Glu-Pro-Ile-Pro-Tyr, experiment in vitro proves that the peptide can enhance Turnover of Mouse Peritoneal Macrophages pair The phagocytosis of sheep red blood cell (SRBC).Migliore-Samour et al. has found the hexapeptide Thr-Thr-Met-Pro- from casein Leu-Trp can stimulate sheep erythrocyte to the phagocytosis of mouse peritoneal macrophages and enhancing for kerekou pneumonia primary The resistance of bacterium has anti-inflammatory properties.Newborn source peptide (PGPIPN) the feeding rat of Li Su duckweeds et al. synthesis finds that rat abdominal cavity is huge The phagocytosis of phagocyte and the relevant anti-inflammatory properties of red blood cell have significant enhancing.
Studies have shown that immune-active peptides can not only enhance immunity of organisms, the proliferation of body lymphocyte, enhancing are stimulated The phagocytic function of macrophage promotes the release of cell factor, the increase for promoting the macrophage nitric oxide amount of inducing, raising machine Body resists the ability of extraneous pathogenic infection, reduces body incidence, and will not cause the immunological rejection of body.
Aging is a natural phenomena, and process is often accompanied by the variation of antioxidant levels, organ-tissue, immune factor, Complicated variation occurs for middle cell factor, such as the trend that proinflammatory cytokine IL-6, IL-4, TNF-α presentation increase, IL-6 It is all considered to play an important role in the generating process of geriatric disease with TNF-a.With science of heredity and molecular biology Development, the research of biological decay mechanism achieve gratifying progress.Researcher by using some model organisms, as mouse, The term single gene mutating experiment of drosophila and caenorhabditis elegan etc. finds that some genes can dramatically increase service life of these organisms and reach As many as 6 times.
Anti-aging peptide as a kind of emerging antidotal agent, in terms of physiological function have amino acid cannot compare it is excellent Gesture can generate promotion or inhibiting effect to the enzyme in organism, improve the absorption to minerals and other nutrients and profit With removing interior free yl enhances the resistance to oxidation of body itself, to slow down aging.Therefore, the nutrition and health care of biologically active peptide Effect has become the emphasis of domestic and foreign scholars' subject study.Qiu Juan et al. pass through experimental studies have found that, milk-derived bioactive micro peptide Life span of drosophila melanogaster can effectively be extended, delay its aging, and also there is preferable antioxidation, thus it is speculated that may be wherein to be rich in coloured glaze Base peptides.SOD vigor in serum, reduces its lipid in discovery bovine colostrum extract energy conspicuousness raising the elderly's body such as the brightness in week Peroxide and enhancing body resistance to oxidation, have certain anti-senescence function.
Have much about the research of biologically active polypeptide at present, for example Chinese patent CN105254738A discloses one kind and comes Derived from the milk-derived biologically active polypeptide DELQDKIH of beta-casein, Chinese patent CN105254739A discloses one kind and derives from Milk-derived the biologically active polypeptide GTQYTD, Chinese patent CN105254740A of α s1- caseins disclose a kind of from α s2- The milk-derived biologically active polypeptide NQFYQKF of casein.
Invention content
The purpose of the present invention is to provide a kind of biologically active polypeptide GGEPFLN and its preparation method and application.
The purpose of the present invention can be achieved through the following technical solutions:
First aspect present invention provides a kind of biologically active polypeptide GGEPFLN, amino acid sequence Gly-Gly-Glu- Pro-Phe-Leu-Asn, such as SEQ ID NO:Shown in 1.
Preferably, the biologically active polypeptide derives from Lactobacillus helveticus mycoprotein.It is derive specifically from LBH_0140 | m.131LBH_0140|g.131ORF LBH_0140|g.131LBH_0140|m.131type:complete len:238(+) LBH_0140:1-714 (+) albumen, and the amino acid residue of the 138th~144, albumen thus.LBH_0140|m.131LBH_ 0140|g.131ORF LBH_0140|g.131LBH_0140|m.131type:complete len:238(+)LBH_0140:1- 714 (+) protein amino acid sequences such as SEQ ID NO:Shown in 3.
LBH_0140|m.131LBH_0140|g.131ORF LBH_0140|g.131LBH_0140|m.131type: complete len:238(+)LBH_0140:The amino acid sequence and corresponding nucleotides sequence of 1-714 (+) albumen are classified as both There is technology, encodes the biologically active polypeptide of the nucleotide fragments energy encoding mature of this 138th~144 amino acids residue of albumen GGEPFLN。
Preferably, the biologically active polypeptide has anti-inflammatory properties and anti-senescence function.
Second aspect of the present invention provides the nucleotide fragments for encoding the biologically active polypeptide GGEPFLN, sequence For:5 '-gtg gcg agc ctt tcc taa ata-3 ', such as SEQ ID NO:Shown in 2.
Third aspect present invention provides the preparation method of the biologically active polypeptide GGEPFLN, can pass through gene work The method of journey is artificial synthesized, can be directly obtained from Lactobacillus helveticus thalline by the method that clasmatosis isolates and purifies, can be with Directly prepared by chemical synthesis.
Fourth aspect present invention, provide the biologically active polypeptide GGEPFLN prepare with anti-inflammatory properties food, Application in health products, drug or cosmetics.
Fifth aspect present invention provides the biologically active polypeptide GGEPFLN and is preparing the food with anti-senescence function Application in product, health products or drug.
Sixth aspect present invention, provide the biologically active polypeptide GGEPFLN prepare and meanwhile have anti-inflammatory properties with Application in the food of anti-senescence function, health products or drug.
Specifically, the biologically active polypeptide GGEPFLN of the present invention, which can be used for preparing, reduces free radical to skin damage Cosmetics, prepare have anti-inflammatory and/or anti-aging drug;And since the biologically active polypeptide GGEPFLN of the present invention is logical The product crossed after gastrointestinal tract degradation still has bioactivity, therefore can be also used for preparing the food such as Yoghourt, adjusts immunity Health products, and oral be used to prepare with anti-inflammatory and/or anti-aging drug.
Seventh aspect present invention provides a kind of anti-inflammatory products, including the biologically active polypeptide GGEPFLN or described lifes The derivative of object active peptides GGEPFLN;The anti-inflammatory products include anti-inflammatory food, anti-inflammatory health product, anti-inflammatory drug or anti- Scorching cosmetics;The derivative of the biologically active polypeptide GGEPFLN refers in the amino acid side of biologically active polypeptide GGEPFLN On chain group, aminoterminal or c-terminus carry out hydroxylating, carboxylated, be carbonylated, methylate, acetylation, phosphorylation, esterification or sugar The modifications such as base, obtained polypeptide derivative.
Eighth aspect present invention provides a kind of anti-aging product, including the biologically active polypeptide GGEPFLN or described The derivative of biologically active polypeptide GGEPFLN;The anti-aging product includes antisenility cistanche food, antisenescence health product or anti-ageing Old drug;The derivative of the biologically active polypeptide GGEPFLN refers to the amino acid side chain in biologically active polypeptide GGEPFLN On group, aminoterminal or c-terminus carry out hydroxylating, carboxylated, be carbonylated, methylate, acetylation, phosphorylation, esterification or glycosyl The modifications such as change, obtained polypeptide derivative.
Ninth aspect present invention provides product that is a kind of while having anti-inflammatory properties and anti-senescence function, including described The derivative of biologically active polypeptide GGEPFLN or described biologically active polypeptides GGEPFLN;With anti-inflammatory properties and anti-senescence function Product include food, health products or drug;The derivative of the biologically active polypeptide GGEPFLN refers to more in bioactivity On the amino acid side groups of peptide GGEPFLN, aminoterminal or c-terminus progress hydroxylating, carboxylated, it is carbonylated, methylates, second The modifications such as acylation, phosphorylation, esterification or glycosylation, obtained polypeptide derivative.
Biologically active polypeptide GGEPFLN's of the present invention has the beneficial effect that:The biologically active polypeptide GGEPFLN of the present invention has Preferable anti-inflammatory activity and activity of fighting against senium;On the one hand, biologically active polypeptide GGEPFLN of the invention can promote macrophage Secrete cytokines promote the increase of the macrophage nitric oxide amount of inducing, and improve the energy that body resists extraneous pathogenic infection Power reduces body incidence;On the other hand, the vigor of internal anti-peroxidation enzyme system can be improved, enhancing body is resisted exogenous The function of stimulation, to reducing organism aging process, aging and sick probability, to developing with anti-inflammatory properties, anti-senescence function Food, health products and drug have a very important significance.
Description of the drawings
Fig. 1:Mass chromatography extraction figure (m/z=734.3548);
Fig. 2:The second order ms figure for the segment that mass-to-charge ratio is 734.3548;
Fig. 3:Polypeptide az, by crack conditions that mass-to-charge ratio is 734.3548;
Fig. 4:IL-4 standard curves;
Fig. 5:Influences of the biologically active polypeptide GGEPFLN to cell factor IL-4 secretory volumes;
Fig. 6:Influence situations of the biologically active polypeptide GGEPFLN to drosophila survival rate.
Specific implementation mode
Before further describing specific embodiments of the present invention, it should be appreciated that protection scope of the present invention is not limited to down State specific specific embodiment;It is also understood that the term used in the embodiment of the present invention is specific specific in order to describe Embodiment, the protection domain being not intended to be limiting of the invention.
When embodiment provides numberical range, it should be appreciated that except non-present invention is otherwise noted, two ends of each numberical range Any one numerical value can be selected between point and two endpoints.Unless otherwise defined, in the present invention all technologies for using and Scientific terminology is identical as the normally understood meaning of those skilled in the art of the present technique.Except used in embodiment specific method, equipment, Outside material, the record according to those skilled in the art to the grasp of the prior art and the present invention can also use and this Any method, equipment and the material of the similar or equivalent prior art of method, equipment described in inventive embodiments, material come real The existing present invention.
Unless otherwise stated, disclosed in this invention experimental method, detection method, preparation method be all made of this technology neck Molecular biology, biochemistry, chromatin Structure and the analysis of domain routine, analytical chemistry, cell culture, recombinant DNA technology and The routine techniques of related field.These technologies existing perfect explanation in the prior art, for details, reference can be made to Sambrook etc. MOLECULAR CLONING:A LABORATORY MANUAL, Second edition, Cold Spring Harbor Laboratory Press, 1989and Third edition, 2001;Ausubel etc., CURRENT PROTOCOLS IN MOLECULAR BIOLOGY, John Wiley&Sons, New York, 1987and periodic updates;the Series METHODS IN ENZYMOLOGY, Academic Press, San Diego;Wolffe, CHROMATIN STRUCTURE AND FUNCTION, Third edition, Academic Press, San Diego, 1998;METHODS IN ENZYMOLOGY, Vol.304, Chromatin (P.M.Wassarman and A.P.Wolffe, eds.), Academic Press, San Diego, 1999;With METHODS IN MOLECULAR BIOLOGY, Vol.119, Chromatin Protocols (P.B.Becker, ed.) Humana Press, Totowa, 1999 etc..
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
1 active peptide GGEPFLN's of embodiment is artificial synthesized
One, the synthesis of biologically active peptide
1. RINK resin 3g (degree of substitution 0.3mmol/g) are weighed in the reactor of 150ml, with the dichloromethane of 50ml (DCM) it impregnates.
After 2.2 hours, resin is washed with nitrogen-dimethylformamide (DMF) of 3 times of resin volumes, is then drained, so weight It is four times multiple, it is for use after resin is drained.
3. a certain amount of 20% piperidines (piperidines/DMF=1 is added into reactor:4,v:V), it is placed on decolorization swinging table and shakes 20min is shaken, the Fmoc blocking groups on resin are sloughed with this.It is washed four times with the DMF of 3 times of resin volumes after having taken off protection, Then it drains.
4. taking the detection of a small amount of resin ninhydrin (nine well ninhydrins) method (each two drop of inspection A, inspection B, 100 DEG C of reactions 1min), resin has color, illustrates to be deprotected successfully.
5. it weighs amino acid Gly in right amount and 1- hydroxyls-benzene a pair of horses going side by side triazole (HOBT) is in right amount in the centrifuge tube of 50ml, addition The DMF of 20ml is dissolved, and the N of 3ml is then added, and N diisopropylcarbodiimide (DIC) oscillation shakes up 1min, waits for that solution is clear It is added in reactor after clear, then reactor is placed in 30 DEG C of shaking table and is reacted.
After 6.2 hours, with a certain amount of acetic anhydride end socket (acetic anhydride:DIEA:DCM=1:1:2,v:v:V) half an hour, so It is washed four times, is drained for use with the DMF of 3 times of resin volumes afterwards.
7. a certain amount of 20% piperidines (piperidines/DMF=1 is added into reactor:4, v:V), it is placed on decolorization swinging table and shakes 20min is shaken, the Fmoc blocking groups on resin are sloughed with this.It is washed four times with DMF after having taken off protection, is then drained.
8. taking the detection of a small amount of resin ninhydrin (nine well ninhydrins) method (each two drop of inspection A, inspection B, 100 DEG C of reactions 1min), resin has color, illustrates to be deprotected successfully.
9. weighing second amino acid next in right amount and HOBT being in right amount in the centrifuge tube of 50ml, the DMF generals of 25ml are added It is dissolved, and the DIC oscillations that 2.5ml is then added shake up 1min, are added in reactor after solution clarification, then by reactor It is placed in 30 DEG C of shaking table and reacts.
After 10.1 hours, a small amount of resin is taken to detect, with ninhydrin method detection (each two drop of inspection A, inspection B, 100 DEG C of reactions 1min), if resin is colourless, illustrate that the reaction was complete;If resin has color, illustrate that condensation is incomplete, the reaction was continued.
11. after complete reaction, washing resin four times with DMF, then drains, a certain amount of 20% is added into reactor Piperidines (piperidines/DMF=1:4,v:V), it is placed on decolorization swinging table and rocks 20min, the Fmoc protecting groups on resin are sloughed with this Group.It is washed four times with DMF after having taken off protection, then drains whether detection protection sloughs.
12. connecting amino acid Gly, Glu, Pro, Phe, Leu and Asn successively according to step 9-11.
13. after connecting the last one amino acid, protection is sloughed, is washed four times with DMF, is then taken out resin with methanol It is dry.Then with 95 cutting liquid (trifluoroacetic acids:1,2 dithioglycols:3, isopropyl base silane:Water=95:2:2:1, v:v:V) by polypeptide (every gram of resin adds 10ml cutting liquids) is cut down from resin, and ice ether (cutting liquid is used in combination:Ether=1:9,v:V) centrifugation is heavy Drop four times.
So far, artificial synthesized biologically active peptide GGEPFLN.
Two, the confirmation of biologically active peptide
1) UPLC is analyzed
UPLC conditions are as follows:
Instrument:Waters ACQUITY UPLC ultra high efficiencies liquid phase-electron spray-level four bars-time of-flight mass spectrometer
Chromatographic column specification:BEH C18 chromatographic columns
Flow velocity:0.4mL/min
Temperature:50℃
Ultraviolet detection wavelength:210nm
Sample size:2μL
Gradient condition:A liquid:Water containing 0.1% formic acid (v/v), B liquid:Acetonitrile containing 0.1% formic acid (v/v)
2) mass spectral analysis
Mass Spectrometry Conditions are as follows:
Ionic means:ES+
Mass range (m/z):100-1000
Capillary voltage (Capillary) (kV):3.0
Sampling spiroid (V):35.0
Ion source temperature (DEG C):115
Remove solvent temperature (DEG C):350
Go solvent stream (L/hr):700.0
Collision energy (eV):4.0
Sweep time (sec):0.25
Interior sweep time (sec):0.02
According to the above analysis method, using ultra high efficiency liquid phase-electron spray-level four bars-flight time mass spectrum, to bioactivity Peptide GGEPFLN carries out chromatography and mass spectral analysis, and mass chromatography extraction figure is as shown in Figure 1, extract the second order ms at this peak Figure and az, by crack conditions are as shown in Figures 2 and 3, and the polypeptide mass-to-charge ratio that can obtain this peak is 734.3548Da, and retention time is 32.1min。
3) result
From the figure 3, it may be seen that the case where being broken according to az, by, analyzes by Mascot softwares and calculates, obtain mass-to-charge ratio The fragment sequence of 734.3548Da is Gly-Gly-Glu-Pro-Phe-Leu-Asn (GGEPFLN), is denoted as SEQ ID NO:1.It should Segment and LBH_0140 | m.131LBH_0140 | g.131ORF LBH_0140 | g.131LBH_0140 | m.131type: complete len:238(+)LBH_0140:The residue sequence of the 138th~144,1-714 (+) albumen is corresponding, and sequence is shown in SEQ ID NO:3.
The anti-inflammatory activity of 2 biologically active peptide of embodiment is tested
One, the experiment (ELISA method) of the rush Factor of Macrophage of biologically active polypeptide GGEPFLN
1. experiment reagent and instrument:
Reagent:Experimental animal balb/c mouse (male 6-8 week old), Shanghai Slac Experimental Animal Co., Ltd.;Mouse Lymphocyte extracting solution, the Shanghai bio tech ltd Suo Laibao;RPMI1640 culture mediums, GIBCO companies;Bovine serum albumin (bovine serum albumin, BSA) in vain, Genebase companies;The biologically active polypeptide GGEPFLN that embodiment 1 obtains; ELISA cell factors Quick kit (IL-4), Wuhan Boster Biological Technology Co., Ltd..
Instrument and equipment:The ultra-clean water of CM-230 types mole, Shanghai Moller scientific instrument Co., Ltd;LRH-250F biochemical cultures Case, Shanghai perseverance Science and Technology Ltd.;GL-22M high speed freezing centrifuges, Shanghai Lu Xiang instrument centrifuges Instrument Ltd.;Hera cell 150CO2Incubator, Heraeus companies;Dragon Wellscan MK3 microplate reader, Labsystems companies.
2. experimental method:
(1) preparation of standard curve
Make IL-4 standard curves:By a concentration of 500pg/mL, 250pg/mL, 125pg/mL, 62.5pg/mL, 31.3pg/ The IL-4 standard items of mL, 15.6pg/mL, 7.8pg/mL are sequentially added into ELISA Plate hole, add biotin labeling resist it is small Mouse IL-4 antibody (ELISA cell factors Quick kit), ELISA Plate is plus lid, 37 DEG C of reaction 90min.Get rid of liquid in ELISA Plate Body sequentially adds Avidin-peroxydase complex (ELISA cell factors Quick kit) 0.1mL per hole.37 DEG C of reactions 60min.0.01M PBS are washed 3 times, and 0.1mL ABC working solutions, 37 DEG C of reaction 30min are added per hole.0.01M PBS washings 5 It is secondary, 90ul TMB developing solutions are added per hole, 37 DEG C are protected from light 25min.0.1mL TMB terminate liquids are added per hole, use microplate reader Light absorption value is measured in 450nm.The IL-4 detection standard curves of making are as shown in Figure 4.IL-4 standard curves are with a concentration of cross Coordinate (unit pg/mL), the light absorption value under 450nm are ordinate, carry out a regression fit, obtain standard curve Y= 0.0038X+0.1224, R2=0.9979.Wherein X represents IL-4 concentration, and unit pg/mL, Y represent the light absorption value under OD450.
(2) the rush Factor of Macrophage detection of polypeptide GGEPFLN
Aseptically take mouse spleen lymphocyte, adjustment cell concentration to 5 × 105/ mL is inoculated in 96 orifice plates, real A group addition biologically active polypeptide GGEPFLN to be tested to be cultivated, the final concentration of adjustment biologically active polypeptide GGEPFLN is respectively 100, 50,10 μ g/mL, with the measurement for carrying out cell factor IL-4 after lymphocyte co-incubation 36 hours.Blank group is not added with biological work Property polypeptide GGEPFLN, culture 36h as a contrast.
3. experimental result and analysis:
Experimental result is shown in Fig. 5, and compared with blank control group, with the increase of peptide concentration, the secretory volume of IL-4 gradually increases Add;When polypeptide addition concentration reaches 50 and 100 μ g/mL, IL-4 secretory volumes are noticeably greater than blank group;It can be seen that biologically active polypeptide GGEPFLN, which has, promotes lymphopoietic function, and by the adjusting to IL-4 cytokine secretions, plays to body The adjustment effect of humoral immunity.
Two, the measurement (Griess methods) of the rush macrophage nitric oxide amount of inducing of biologically active polypeptide GGEPFLN
1. experiment reagent and instrument:
Reagent:Experimental animal balb/c mouse (male 6-8 week old) Shanghai Communications University's agricultural and biological institute animal reality Test center;The biologically active polypeptide GGEPFLN that embodiment 1 obtains;LPS is purchased from Sigma companies;Neutral red staining solution, the green skies Biotechnology research institute produces.
Instrument and equipment:LRH-250F biochemical cultivation cases Shanghai perseverance Science and Technology Ltd.;On GL-22M high speed freezing centrifuges Hai Luxiang instrument centrifuges Instrument Ltd.;Hera cell 150CO2 incubator Heraeus companies;Dragon Wellscan MK3 microplate reader Labsystems companies.
2. test method:
It is 2 × 10 that number of cells, which is added,6100 holes μ l/ of cell suspension of/ml, it is adherent to be added after purification containing peptide LPS is added to 10 μ g/ml of final concentration, continuously in 200 holes μ l/ of RPMI1640 complete culture solutions (10%FBS), inflammation group when for 24 hours After cultivating 48h, 50 holes μ l/ of culture solution supernatant are collected, add Griess reagents 1 and Griess reagents successively in culture solution supernatant 2 each holes 50 μ l/, room temperature reaction after ten minutes, measure absorbance value (OD540) under 540nm wavelength.
3. experimental result and analysis:
1 biologically active polypeptide GGEPFLN of table promotees the measurement of the macrophage nitric oxide amount of inducing
Experiment packet Normal group Inflammation group
Cell blank 0.0592±0.00525 0.3241±0.0381
GGEPFLN 1mg/ml 0.1452±0.0269** 0.4963±0.0426**
GGEPFLN 0.5mg/ml 0.1343±0.0145** 0.3775±0.0634**
GGEPFLN 0.1mg/ml 0.2313±0.0531**
Note:*, compared with negative control, significant difference (P < 0.05);
*, compared with negative control group, significant difference (P < 0.01)
Experimental result is shown in Table 1, as shown in Table 1, biologically active polypeptide GGEPFLN is added in experimental group, concentration is respectively 1mg/mL and 0.5mg/mL makes an oxygen of the promotion macrophage grown under inflammatory conditions for growing under normal circumstances with LPS Changing the nitrogen amount of inducing has facilitation.Compared with cell blank group, there is significant difference (P<0.05).Work as biologically active polypeptide A concentration of 0.1mg/mL of addition of GGEPFLN, compares in the case where LPS makes inflammatory conditions, also macrophage nitric oxide can be promoted to lure The increase of raw amount, and there is significant difference (P<0.05).But compared with the cell blank group grown under normal circumstances, do not have Significant difference.Illustrating that biologically active polypeptide GGEPFLN has under the conditions of a certain concentration promotes macrophage nitric oxide to lure It is raw to measure increased ability.
The activity of fighting against senium of 3 biologically active peptide of embodiment is tested
One, biologically active polypeptide GGEPFLN improves the experiment of drosophila survival ability
1. experiment reagent and instrument:
Reagent:Oregon K wild type Drosophila melanogasters, agricultural college of Shanghai Communications University genetics experiments room;Agar powder, state Chemical reagent Co., Ltd of medicine group;The biologically active polypeptide GGEPFLN that embodiment 1 obtains.
Instrument and equipment:The ultra-clean water of CM-230 types mole, Shanghai Moller scientific instrument Co., Ltd;G136T type Zealway intelligence Energy high-temperature sterilization pot, Xiamen Zhi Wei instruments Science and Technology Ltd.;BJ-CD SERIES bio-incubators, Shanghai is rich to prove to be true after interrogation industry public affairs Department;GRX-9073 type hot air sterilizers, the permanent Science and Technology Ltd. in Shanghai one.
2. experimental method:
Using drosophila as experimental model:The drosophila adult newly to sprout wings in 8 hours is collected, divides male and female random transferring to respectively after anesthesia In experimental group, every group of each gender 100, every group of setting 3 is parallel, and control group gives conventional corn powder culture medium, experimental group GGEPFLN biologically active peptides-corn culture medium respectively containing 0.05mg/ml, 0.5mg/ml, 1mg/ml.More renew within every 2 days Fresh culture medium is primary, observes and records the death toll of different sexes drosophila daily, until drosophila is all dead.Draw drosophila Survivorship curve, and calculate the average life span of different sexes drosophila and maximum life span (takes 5 drosophilas of last death to unite Meter).
3. experimental result and analysis:
This experiment is as follows to the result of study of the life span of drosophila melanogaster of feeding various concentration biologically active peptide:It can be with from Fig. 6 (A) It was found that for blank control group Male Drosophila, the GGEPFLN of a concentration of 0.05mg/ml of feeding is not significantly changed The survival rate of Male Drosophila, and when peptide concentration reaches 0.5mg/ml and 1mg/ml, same time point, the survival rate of Male Drosophila It is significantly improved.From Fig. 6 (B), relative to blank control group female Drosophila, feeding a concentration of 0.5mg/ml and 1mg/ml When, in same time point, the survival rate of female Drosophila increases, but result difference unobvious.
Influence situations of the table 2-1GGEPFLN to the Male Drosophila service life
Note:* mark is compared with blank control group, significant difference (P<0.05);Similarly hereinafter.
Influence situations of the table 2-2GGEPFLN to the female Drosophila service life
From table 2-1 it is found that relative to blank control group, low dose group Male Drosophila average life span does not have significant change, But middle dose group and advanced amount group Male Drosophila average life span are improved, and respectively 15.94% and 9.24%, but only middle dosage Group produces significant difference (p<0.05), illustrate that the average life span conspicuousness of middle dose group Male Drosophila improves.Meanwhile middle dose The half death time of amount group and high dose group drosophila is improved, but does not have notable difference in terms of MaLS.By table 2-2 is it is found that female Drosophila low dose group, middle dose group and high dose group increase in terms of average life span, but do not produce Raw significant difference.But the MaLS of middle dose group and high dose group increases, and extends 7 days respectively compared with blank control group With 6 days, and produce significant difference (P<0.05).
This is the experiment results show that biologically active polypeptide GGEPFLN can improve the average life span of drosophila under a certain concentration And MaLS, but it is related with concentration and gender.This phenomenon related to tested material concentration, strain may be because GGEPFLN participates in the part biological metabolism of drosophila, or the antioxidant system by improving drosophila tissue extends fruit to reach The effect in fly service life.Since the metabolism of different lines drosophila can have any different, to cause the difference of result.And the difference of gender, May be since female Drosophila is inherently with certain conservative and to the resistance of external environment, so GGEPFLN is to female Property life span of drosophila melanogaster extension be not obvious.
Two, biologically active polypeptide GGEPFLN improves the experiment of drosophila fertility
1. experiment reagent and instrument:
Reagent:Oregon K wild type Drosophila melanogasters, agricultural college of Shanghai Communications University genetics experiments room;Agar powder, state Chemical reagent Co., Ltd of medicine group;The biologically active polypeptide GGEPFLN that embodiment 1 obtains.
Instrument and equipment:The ultra-clean water of CM-230 types mole, Shanghai Moller scientific instrument Co., Ltd;G136T type Zealway intelligence Energy high-temperature sterilization pot, Xiamen Zhi Wei instruments Science and Technology Ltd.;BJ-CD SERIES bio-incubators, Shanghai is rich to prove to be true after interrogation industry public affairs Department;GRX-9073 type hot air sterilizers, the permanent Science and Technology Ltd. in Shanghai one.
2. experimental method:
The drosophila adult newly to sprout wings in 8 hours is collected, its male and female is separately fed, is separately added into culture medium a concentration of The GGEPFLN solution of 0mg/ml, 0.05mg/ml, 0.5mg/ml, 1mg/ml, continuous culture 12 days.Collect same concentrations within 13rd day The adult drosophila of lower culture is simultaneously transferred in new Nostoc commune Vanch bottle, and each culture bottle ensures 1 female and 2 (every group 5 of males Bottle), it gives accurate 24 hours for every bottle and lays eggs.Parent drosophila is transferred in new Nostoc commune Vanch bottle after oviposition, old training Foster bottle continues breeding culture, counts progeny size, METHOD FOR CONTINUOUS DETERMINATION 7 days after larva sprouts wings, and be repeated 3 times.
3. experimental result and analysis:
3 reproductive capacity measurement result of table
From table 3 it can be seen that low concentration experimental group reproductive capacity does not generate conspicuousness variation, but middle dosage compared with the control group Experimental group and the reproductive capacity of high dose experimental group drosophila are significantly increased (P compared with blank control group<0.05).Illustrate certain dense The GGEPFLN of degree can promote the reproductive capacity of drosophila.Originally the experimental results showed that, the extension of life span of drosophila melanogaster is that GGEPFLN directly makees As a result, rather than GGEPFLN pass through reduce reproductive capacity caused by two level physiological effect.Also illustrate GGEPFLN to fruit simultaneously Fly is safe, without toxic hazard.
Three, the experiment that biologically active polypeptide GGEPFLN influences drosophila SOD and MAD content
1. experiment reagent and instrument:
Reagent:Oregon K wild type Drosophila melanogasters, agricultural college of Shanghai Communications University genetics experiments room;Agar powder, state Chemical reagent Co., Ltd of medicine group;MDA lipid peroxide kits, Science and Technology Ltd. of Nanjing Keygen Biotech;SOD super oxygens Compound is disproportionated enzyme reagent kit, and bio tech ltd is built up in Nanjing;The biologically active polypeptide GGEPFLN that embodiment 1 obtains.
Instrument and equipment:The ultra-clean water of CM-230 types mole, Shanghai Moller scientific instrument Co., Ltd;Organize homogenizer, Shanghai Member is as bio tech ltd;G136T type Zealway intelligence high-temperature sterilization pots, Xiamen Zhi Wei instruments Science and Technology Ltd.; BJ-CD SERIES bio-incubators, Shanghai Bo Xun industrial corporations;GRX-9073 type hot air sterilizers, the permanent science and technology in Shanghai one have Limit company;Infinite type microplate reader, Austrian Di Ken Co., Ltds.
2. experimental method:
The drosophila adult newly to sprout wings in 8 hours is collected, is divided after anesthesia in male and female random transferring to each experimental group, every group each Gender 100, every group of setting 3 is parallel, and control group gives conventional corn powder culture medium, and experimental group is respectively to contain 0.05mg/ GGEPFLN biologically active peptides-corn culture medium of ml, 0.5mg/ml, 1mg/ml.It is primary to replace within every 2 days fresh culture, raising After 30 days, every group weighs drosophila 40mg, adds 0.5ml physiological saline, and homogenate is ground in ice bath, and interval 10s seconds is repeated 3 It is secondary, homogenate is made, illustrates to measure every group of drosophila SOD activity and MDA levels according to kit.Utilize MDA detection kits The levels of the lipid peroxidation product MDA in drosophila body are detected, the wavelength of spectrophotometer is 532nm.
3. experimental result and analysis:
Influences of the table 4GGEPFLN to drosophila SOD, MDA
As can be known from Table 4, relative to blank control group, the SOD contents in the female male drosophila body of polypeptide processing group are improved, And for Male Drosophila group, when peptide concentration reaches 1mg/ml, there is significant difference in the SOD contents in drosophila body, and Then there is significant difference when peptide concentration is 0.5mg/ml and 1mg/ml in female Drosophila group.Illustrate by taking in certain polypeptide, Internal SOD contents can be improved, and body protective itself is helped to prevent oxidative damage.MDA contents can see from table 4, MDA contents in experimental group Male Drosophila and female Drosophila body have reduction.Relative to male blank control group MDA contents 1.37 There is the reduction of conspicuousness in ± 0.21 μm of ol/L, the MDA contents of a concentration of 0.5mg/ml and 1mg/ml drosophilas group, and female Drosophila In group, when 1mg/ml peptides are handled, there is the reduction of conspicuousness in the MDA contents in drosophila body.Since MDA is body lipid peroxide Change and generate, the reduction of content illustrates that the Antioxidant Enzymes vigor of drosophila is improved indirectly, to protect body Histoorgan not will produce a large amount of lipid peroxide.
From experimental result as can be seen that the experimental result of SOD and MDA is mutually proved, it may be said that gelatine/biological activity polypeptide GGEPFLN helps to improve the vigor of the Antioxidant Enzymes in body body, so as to effectively improve the oxidation resistance of body, subtracts Few body is stimulated by the bad factor, to reduce organism aging process, aging and sick probability, all in all, for Male Drosophila Effect be better than female Drosophila.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention. Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's Within protection domain.
Sequence table
<110>The Shanghai bio tech ltd Bo Hui;Zhejiang Hui Tai life and healths Science and Technology Ltd.
<120>A kind of biologically active polypeptide GGEPFLN and its preparation method and application
<160> 3
<170> SIPOSequenceListing 1.0
<210> 1
<211> 7
<212> PRT
<213>Artificial sequence (Artificial Sequence)
<400> 1
Gly Gly Glu Pro Phe Leu Asn
1 5
<210> 2
<211> 21
<212> DNA
<213>Artificial sequence (Artificial Sequence)
<400> 2
gtggcgagcc tttcctaaat a 21
<210> 3
<211> 237
<212> PRT
<213>Artificial sequence (Artificial Sequence)
<400> 3
Met Pro Glu Lys Asp Lys Asn Pro Gln Lys Gly Pro Asp Ile Arg Ser
1 5 10 15
Asn Leu Ile Lys Val Asn Met Gly Gly Asp Thr Met Phe Val Asp Pro
20 25 30
Asp Gln Tyr Lys Pro Gln Ile Glu His Gln Lys Lys Leu Lys Arg Leu
35 40 45
His Arg Lys Pro Lys Asn Pro Lys Pro Gly Glu Trp Val Ser Lys Asp
50 55 60
Tyr Ser Lys His Lys Val Ala Asp Tyr Lys Pro Phe Asn Phe Val Asp
65 70 75 80
Gly Glu Gly Val Arg Cys Ser Leu Tyr Val Ser Gly Cys Leu Phe Asp
85 90 95
Cys Pro Gly Cys Tyr Asn Leu Ala Ala Gln Asn Phe Asn Tyr Gly Phe
100 105 110
Pro Tyr Thr Gln Glu Leu Glu Asp Arg Ile Ile Asn Asp Leu Ser Gln
115 120 125
Ser Tyr Val Gln Gly Leu Thr Leu Leu Gly Gly Glu Pro Phe Leu Asn
130 135 140
Thr Asp Val Cys Leu Lys Ile Ile Asn Arg Ile Arg Lys Glu Phe Gly
145 150 155 160
His Lys Lys Asp Ile Trp Ser Trp Ser Gly Tyr Thr Trp Asp Glu Leu
165 170 175
Gln Lys Glu Thr Pro Asp Lys Lys Glu Met Leu Ser Lys Ile Asp Ile
180 185 190
Leu Val Asp Gly Arg Phe Met Asn Asp Leu Lys Asp Leu Thr Leu Gln
195 200 205
Phe Arg Gly Ser Ser Asn Gln Arg Ile Ile Asp Val Pro Lys Ser Met
210 215 220
Lys Ala Gly Lys Val Val Ile Trp Asp Lys Leu Gln Arg
225 230 235

Claims (10)

1. a kind of biologically active polypeptide GGEPFLN, which is characterized in that its amino acid sequence is Gly-Gly-Glu-Pro-Phe- Leu-Asn。
2. a kind of biologically active polypeptide GGEPFLN according to claim 1, which is characterized in that the biologically active polypeptide From Lactobacillus helveticus mycoprotein.
3. encoding the nucleotide fragments of biologically active polypeptide GGEPFLN described in claim 1, which is characterized in that the nucleotide The sequence of segment such as SEQ ID NO:Shown in 2.
4. the preparation method of biologically active polypeptide GGEPFLN as described in claim 1, which is characterized in that pass through genetic engineering Method is artificial synthesized or Lactobacillus helveticus thalline is directly obtained by the method that clasmatosis isolates and purifies, or directly passing through Be synthetically prepared.
5. the application of biologically active polypeptide GGEPFLN as described in claim 1, which is characterized in that the biologically active polypeptide Applications of the GGEPFLN in preparing the food with anti-inflammatory properties, health products, drug or cosmetics.
6. the application of biologically active polypeptide GGEPFLN as described in claim 1, which is characterized in that the biologically active polypeptide Applications of the GGEPFLN in preparing the food with anti-senescence function, health products or drug.
7. the application of biologically active polypeptide GGEPFLN as described in claim 1, which is characterized in that the biologically active polypeptide Applications of the GGEPFLN in preparing the food with anti-inflammatory properties and anti-senescence function, health products or drug.
8. a kind of anti-inflammatory products, which is characterized in that including biologically active polypeptide GGEPFLN or described lifes as described in claim 1 The derivative of object active peptides GGEPFLN;The anti-inflammatory products include anti-inflammatory food, anti-inflammatory health product, anti-inflammatory drug or anti- Scorching cosmetics;The derivative of the biologically active polypeptide GGEPFLN refers in the amino acid side of biologically active polypeptide GGEPFLN On chain group, aminoterminal or c-terminus carry out hydroxylating, carboxylated, be carbonylated, methylate, acetylation, phosphorylation, esterification or sugar Baseization is modified, obtained polypeptide derivative.
9. a kind of anti-aging product, which is characterized in that including biologically active polypeptide GGEPFLN or described as described in claim 1 The derivative of biologically active polypeptide GGEPFLN;The anti-aging product includes antisenility cistanche food, antisenescence health product or anti-ageing Old drug;The derivative of the biologically active polypeptide GGEPFLN refers to the amino acid side chain in biologically active polypeptide GGEPFLN On group, aminoterminal or c-terminus carry out hydroxylating, carboxylated, be carbonylated, methylate, acetylation, phosphorylation, esterification or glycosyl Change modification, obtained polypeptide derivative.
10. a kind of product with anti-inflammatory properties and anti-senescence function, which is characterized in that including biology as described in claim 1 The derivative of active peptides GGEPFLN or described biologically active polypeptides GGEPFLN;Production with anti-inflammatory properties and anti-senescence function Product include food, health products or drug;The derivative of the biologically active polypeptide GGEPFLN, refers in biologically active polypeptide On the amino acid side groups of GGEPFLN, aminoterminal or c-terminus progress hydroxylating, carboxylated, it is carbonylated, methylates, acetyl Change, phosphorylation, esterification or glycosylation modified, obtained polypeptide derivative.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121176A1 (en) * 2008-03-31 2009-10-08 The University Of British Columbia Insulin-induced gene (insig) peptide compositions and methods for cytoprotection
CN105254750A (en) * 2015-10-16 2016-01-20 上海交通大学 Bioactive polypeptide FGYSGAFKCL as well as preparation and application thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121176A1 (en) * 2008-03-31 2009-10-08 The University Of British Columbia Insulin-induced gene (insig) peptide compositions and methods for cytoprotection
CN105254750A (en) * 2015-10-16 2016-01-20 上海交通大学 Bioactive polypeptide FGYSGAFKCL as well as preparation and application thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JIEHUI,ZHOU 等: "Immunomodulating effects of casein-derived peptides QEPVL and QEPV on lymphocytes in vitro and in vivo", 《FOOD & FUNCTION》 *
钱蕙佶等: "瑞士乳杆菌胞内生物活性肽的分离鉴定", 《中国乳品工业》 *

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