NZ734998B2 - Pyolysin methods and compositions - Google Patents

Pyolysin methods and compositions

Info

Publication number
NZ734998B2
NZ734998B2 NZ734998A NZ73499816A NZ734998B2 NZ 734998 B2 NZ734998 B2 NZ 734998B2 NZ 734998 A NZ734998 A NZ 734998A NZ 73499816 A NZ73499816 A NZ 73499816A NZ 734998 B2 NZ734998 B2 NZ 734998B2
Authority
NZ
New Zealand
Prior art keywords
medium
pyogenes
pyolysin
basal
hci
Prior art date
Application number
NZ734998A
Other versions
NZ734998A (en
Inventor
John Physical Herberg
Glenn Andrew Physical Moonen
George Physical Moutafis
Allen Physical Poppe
Original Assignee
Zoetis Services Llc
Filing date
Publication date
Application filed by Zoetis Services Llc filed Critical Zoetis Services Llc
Priority claimed from PCT/US2016/022297 external-priority patent/WO2016145432A1/en
Publication of NZ734998A publication Critical patent/NZ734998A/en
Publication of NZ734998B2 publication Critical patent/NZ734998B2/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K2039/55Medicinal preparations containing antigens or antibodies characterised by the host/recipient, e.g. newborn with maternal antibodies
    • A61K2039/552Veterinary vaccine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04Antibacterial agents
    • 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
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, 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
    • C12N1/20Bacteria; Culture media therefor
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P21/00Preparation of peptides or proteins
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P21/00Preparation of peptides or proteins
    • C12P21/02Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione

Abstract

Methods for improved cultivation media and culture conditions for Trueperella pyogenes are disclosed herein. Also disclosed are improved methods for the isolation and purification of pyolysin from T. pyogenes as a potential candidate for compositions useful in reducing or preventing bovine metritis.

Claims (17)

1.Claims
2.A method for increasing the yield of pyolysin produced by Trueperella pyogenes, wherein the method comprises: A) growing T. pyogenes in a basal medium containing glucose, as well as an additional concentrated carbon source 5 selected from the group consisting of: glucose, galactose, sucrose, maltose, oligosaccharides, glycerol, lactose, n, dextrin, mono methyl succinate, and N-acetyl glucosamine; B) adding a chelating agent to the medium prior to the exhaustion of e in the medium; C) harvesting T. pyogenes, and D) isolating pyolysin. 10 2. The method of claim 1, wherein the additional concentrated carbon source is lactose.
3. The method of claim 1, wherein the chelating agent is ethylene glycol acetic acid (EGTA), ethylenediaminetetraacetic acid (EDTA), ora ation of the two. 15
4. The method of claim 3, wherein the chelating agent is EGTA.
5. The method of claim 1, wherein T. es replicates to a bacterial cell density higher than an optical density (O.D.) of 5 at 600 nm.
6. The method of claim 1, wherein the medium is maintained at a temperature between 21-37°C. 20
7. The method of claim 6, wherein the medium is ined at a temperature between 28-32°C.
8. The method of any one of claims 1-7, further comprising the use of the basal medium, wherein the pH of the medium is between 6.0 and 8.0.
9. The method of any one of claims 1-8, further comprising the use of the basal 25 medium, wherein the medium comprises hemin as an iron source.
10. The method of any one of claims 1-9, further comprising the use of the basal medium sing Polysorbate 80 (Tween 80).
11. The method of any one of claims 1-10, further comprising the use of the basal medium comprising a vitamin solution.
12. The method of claim 11, wherein the vitamin solution comprises one or more of the following: Vitamin B12; myo-inositol; uracil nucleobase; nicotinic acid; m pantothenate; pyridoxal-HCI; pyridoxamine-2HCI; riboflavin; thiamine-HCI; p-aminobenzoic acid; biotin; folic acid; amide; and ß-NAD.
13. The method of claim 11 , wherein the vitamin solution comprises pyridoxal-HCI.
14. The method of any one of claims 1-13, further comprising allowing the culture pH to decrease from the initial basal medium ng pH to a level between 5.50 and 6.50, and then controlling the pH n 5.50 and 6.50 by automatic addition of a basic titrant.
15. The method of any one of claims 1-14, further comprising separating T. pyogenes proteases from the pyolysin.
16. The method of claim 15, wherein the tion of T. pyogenes proteases from pyolysin is achieved by a chromatography step.
17. The method of claim 1, substantially as herein described with reference to any one of the es and/or
NZ734998A 2016-03-14 Pyolysin methods and compositions NZ734998B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562132050P 2015-03-12 2015-03-12
PCT/US2016/022297 WO2016145432A1 (en) 2015-03-12 2016-03-14 Pyolysin methods and compositions

Publications (2)

Publication Number Publication Date
NZ734998A NZ734998A (en) 2024-01-26
NZ734998B2 true NZ734998B2 (en) 2024-04-30

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