WO1990002808A2 - Fermentation of genetically engineered yeast in the presence of a polyalkylene compound - Google Patents
Fermentation of genetically engineered yeast in the presence of a polyalkylene compound Download PDFInfo
- Publication number
- WO1990002808A2 WO1990002808A2 PCT/GB1989/001046 GB8901046W WO9002808A2 WO 1990002808 A2 WO1990002808 A2 WO 1990002808A2 GB 8901046 W GB8901046 W GB 8901046W WO 9002808 A2 WO9002808 A2 WO 9002808A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- albumin
- process according
- added
- fermentation
- compound
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P21/00—Preparation of peptides or proteins
- C12P21/02—Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P21/00—Preparation of peptides or proteins
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/76—Albumins
- C07K14/765—Serum albumin, e.g. HSA
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- 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
- C12N1/38—Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound
Definitions
- This invention provides improved fermentation methods and, in particular, a method of increasing the quantity of human serum albumin (hereinafter "albumin”) produced by fermentation of an rDNA-containing micro ⁇ organism which is capable of secreting albumin into the medium.
- albumin human serum albumin
- Albumin is a major component of blood plasma and can be used as a plasma or serum substitute to treat burns, haemorrhagic shock and other conditions. Methods have been described whereby albumin can be produced by fermentation of microorganisms into which the gene for albumin has been introduced by recombinant DNA technology (GB-A-2147903) .
- such organisms are so constructed as to secrete albumin into the surrounding culture fluid because intracellular albumin, in common with many other heterologous proteins, is produced in an inactive, insoluble form from which the native protein can be obtained only with great difficulty (see, for example, M. Latta et . al. 1987 Bio/Technology 5 . 1309-1314) .
- intracellular albumin in common with many other heterologous proteins, is produced in an inactive, insoluble form from which the native protein can be obtained only with great difficulty (see, for example, M. Latta et . al. 1987 Bio/Technology 5 . 1309-1314) .
- In order to maximize the productivity of the manufacturing process it is desirable to grow the microorganisms in a highly agitated aerated fermenter to achieve high concentrations of cells and product. Unfortunately these conditions leave the secreted protein exposed to physical, chemical and enzymatic degradation in the intracellular medium such that the quantity of albumin produced in the fermenter is much less than might have been expected from the performance of
- Any suitable polyalkylene polymer or copolymer with another compound may be used, for example polyethylene glycol; polypropylene glycol; polysorbate 80; copolymers of ethylene oxide and propylene oxide; and copolymers of ethylene oxide and/or propylene oxide with other compounds, such as fatty acids, fatty alcohols, sugars and polyols, for example sugar alcohols (e.g. sorbitol), ethylene glycol, pentaerythritol and glycerol .
- polyethylene glycol polypropylene glycol
- polysorbate 80 copolymers of ethylene oxide and propylene oxide
- copolymers of ethylene oxide and/or propylene oxide with other compounds such as fatty acids, fatty alcohols, sugars and polyols, for example sugar alcohols (e.g. sorbitol), ethylene glycol, pentaerythritol and glycerol .
- Polyoxypropylene polymers have the general formula HO-(CH 2 -CH(CH 3 )-0)n-H.
- Suitable polyoxyethylene polyoxypropylene copolymers include those which can be represented as X-(0-(CH 2 -CH(CH 3 )-0) a -(CH 2 -CH 2 0)» -H)L where X is a polyol containing 1 hydroxyl groups , 1 is 2- 6, m is 10-30 and n is 0-10.
- Another suitable series of compounds uses polyethylene glycol as the polyol , having two available hydroxyl groups, each substitutable by a -0 (CH 2 -CH( CHa )-0) n -H group where each n is the same or different.
- polyoxyalkylene compounds All of the compounds and classes of compounds referred to above are referred to herein as "polyoxyalkylene compounds” . These compounds are usually, but not always, antifoam compounds. If such a compound does not have antifoam properties, then the phrase "in excess of the amount required to suppress undesirable levels of foam” means in an amount greater than zero. Suitable compounds include those available under the trade designations "Darastil” (for example “Darastil 8231”) (Grace Dearborn Ltd, Widnes , Cheshire, U.K.) and Breox FMT30 (Water Management Chemicals Ltd, Kidderminster, Worcs, U.K. )
- High cell densities in microbial fermentations are commonly achieved by fed-batch culture. Under these conditions the fermenter is part-full at the start of the process and contains only a small fraction of the carbon substrate. As the fermentation proceeds a concentrated solution of the carbon substrate, and possibly other nutrients, is gradually added. Antifoams are a common process aid in such a process, foam control being achieved by a sensor situated near the top of the fermenter which actuates the addition of antifoam when foam is detected. Since the fermenter is only partially filled at the start, little or no antifoam is added in the early stages of the fermentation and it is only towards the end of the process, as the vessel fills up, that a head of foam is likely to reach and actuate the sensor.
- Typical usage rates are 0.02-0.2g/l fermentation broth.
- the stabilising agent is added from the start (or at an early stage) of the fermentation.
- the reagent may be added either in a single dose at or near the start of fermentation or it may be added gradually or intermittently in a series of aliquots through the process. In this way it is possible to maintain approximate proportionality between cell biomass or albumin, on the one hand, and reagent on the other.
- One or more suitable stabiliser compounds may be used. Usage rates for this process are such as to yield a concentration of stabiliser (or of total stabilisers, if more than one is used) of between O. ⁇ and lOg/l (preferably l-5g/l) .
- concentration of stabiliser or of total stabilisers, if more than one is used
- the process is not restricted to this type of fermentation.
- Use of these reagents at these concentrations is also applicable to the production of albumin in simple batch culture or in continuous culture. In the latter case the reagent can be added continuously or intermittently to maintain a concentration in the desired range of 0.5-10g/l (preferably 1- ⁇ g/l).
- stabilisers of the invention has been found to be beneficial with relatively low-yielding strains of yeast. With certain strains of yeast, which give higher yields of albumin, the beneficial effect may be less noticeable if the fermentation protocol is such as to produce high cell densities, but is still detectable if lower cell densities are produced.
- the albumin may be any naturally-occurring or modified form of albumin, including fragments thereof, provided that the compound retains at least one functional characteristic of HSA, for example its oncotic or ligand-binding properties or its utility in laboratory media.
- the albumin may be the fragment disclosed in EP-A-322 094.
- Secretion may be mediated by any suitable signal sequence, for example the pre-HSA sequence or the yeast alpha-factor signal sequence.
- the microorganism may be any organism (including animal or plant cell cultures) which secretes albumin into the fermentation medium, such as suitable strains of bacteria (for example Bacillus or Streptomyces spp. ) or yeasts (such as Saccharomyces cerevisiae or Kluyveromyces lactis ) .
- suitable strains of bacteria for example Bacillus or Streptomyces spp.
- yeasts such as Saccharomyces cerevisiae or Kluyveromyces lactis
- Albumin-secreting yeasts and their fermentation to produce albumin are disclosed in EP-A-322 094 and EP-A-201 239. Examples
- Example 1 Stabilisation of albumin in fermentation medium.
- a laboratory fermenter was filled to half its nominal working volume with an initial "batch" medium containing 50ml/l of a salts mixture (containing 114g/l KH 2 P0 4 , 12g/l MgS0 4 , 3.0g/l CaCl 2 .6H 2 0, 2.0g/l Na 2 EDTA; lOml/1 of a trace elements solution containing 3g/l ZnSO..7H 2 0, lOg/1 FeS0 4 .7H 2 0, 3.2g/l MnSO..4H 2 0, ' 79mg/l CuS0 4 .5H 2 0, 1.5g/l H 3 B0 3 , 0.2g/l KI , 0.5g/l Na 2 Mo0 4 .2H 2 0, 0.56g/l CoCl 2 .6H 2 0, 75ml/l H 3 P0 4 ; 20g/l sucrose; 50ml/l of a vitamins mixture containing 1.6g/l Ca pantothenate ,
- DOT dissolved oxygen tension
- PPG 2000 was added in response to a foam sensor. None was added until over 50% of the feed solution had been added. The final level of addition was 0.2g/l. Biomass concentration at the end of the fermentation was 93g/l. About 90% of the albumin initially present was degraded within 24h of the start of the feed.
- PPG 2000 added solely in response to foam sensor. Nil at fermentation start, increasing to O.lg/1 after 10% of the feed was added, then rising to a final level of 0.2g/l during the last 50% of the feed. The final biomass was 84g/l, and the albumin level was noted on an arbitrary scale to be 1.0 unit.
- Example 2B
- Polyricinate added to 1.5g/l at start of ermentation, increasing further to 2.2g/l after 35% of feed added with further increases to maintain a level of 2.5g/l when feed was nearly complete. A further addition after the feed was over raised the final level to 3.5g/l. Final biomass 83g/l, albumin level 3.81 units.
- PPG 2000 added to an initial value of lg/1 with further additions after 50% and 80% of the feed had been added to maintain this concentration.
- Final biomass 86g/l, albumin concentration 4.2 units.
- Example 2 A series of the fed-batch fermentations were set up according to the procedure of Example 2 except that a different strain of S. cerevisiae (but still containing the plasmid for secreted albumin) was used. Antifoams were added according to the protocol of Example 2C with the following results. Antifoam Biomass Albumin Concentration (g/1) (arbitrary units)
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Medicinal Chemistry (AREA)
- Biophysics (AREA)
- Gastroenterology & Hepatology (AREA)
- Toxicology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Virology (AREA)
- Biomedical Technology (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE68921063T DE68921063T2 (en) | 1988-09-07 | 1989-09-06 | Process for the preparation of human serum albumin by fermentation of a genetically modified microorganism in the presence of a polyalkylene. |
EP89910461A EP0386222B1 (en) | 1988-09-07 | 1989-09-06 | Process for preparing human serum albumine by fermenting a genetically engineered microorganism in the presence of a polyalkylene compound |
KR1019900700909A KR900702001A (en) | 1988-09-07 | 1989-09-06 | zymotechnics |
DK107490A DK107490A (en) | 1988-09-07 | 1990-05-01 | METHOD OF PREPARING HUMAN SERUM ALBUM |
FI902259A FI96040C (en) | 1988-09-07 | 1990-05-04 | Fermentation process for the preparation of human serum albumin |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888820951A GB8820951D0 (en) | 1988-09-07 | 1988-09-07 | Fermentation method |
GB8820951.5 | 1988-09-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1990002808A2 true WO1990002808A2 (en) | 1990-03-22 |
WO1990002808A3 WO1990002808A3 (en) | 1990-04-19 |
Family
ID=10643175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1989/001046 WO1990002808A2 (en) | 1988-09-07 | 1989-09-06 | Fermentation of genetically engineered yeast in the presence of a polyalkylene compound |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0386222B1 (en) |
JP (1) | JP2996405B2 (en) |
KR (1) | KR900702001A (en) |
AT (1) | ATE118249T1 (en) |
AU (1) | AU618413B2 (en) |
CA (1) | CA1336416C (en) |
DE (1) | DE68921063T2 (en) |
DK (1) | DK107490A (en) |
FI (1) | FI96040C (en) |
GB (1) | GB8820951D0 (en) |
HU (1) | HU207350B (en) |
IE (1) | IE61268B1 (en) |
WO (1) | WO1990002808A2 (en) |
ZA (1) | ZA896847B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0404317A2 (en) * | 1989-06-22 | 1990-12-27 | Petrolite Corporation | Use of ethoxylated propoxylated alcohols to prevent or reduce foam in fermentation broths |
EP0504823A2 (en) * | 1991-03-20 | 1992-09-23 | The Green Cross Corporation | Method for producing human serum albumin |
EP1004673A1 (en) * | 1997-04-03 | 2000-05-31 | Yoshitomi Pharmaceutical Industries, Ltd. | Process for producing foreign proteins |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0822893B2 (en) * | 1995-04-27 | 2005-04-13 | Sucher & Holzer Bauplanungs- und Handelsgesellschaft mbh | Worm press |
US7176278B2 (en) | 2001-08-30 | 2007-02-13 | Biorexis Technology, Inc. | Modified transferrin fusion proteins |
CN101511868B (en) | 2006-07-24 | 2013-03-06 | 比奥雷克西斯制药公司 | Exendin fusion proteins |
JP7050528B2 (en) * | 2017-03-01 | 2022-04-08 | 三洋化成工業株式会社 | Production method of useful substances |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0073646A2 (en) * | 1981-08-28 | 1983-03-09 | Genentech, Inc. | Construction of DNA sequences and their use for microbial production of proteins, in particular human serum albumin |
EP0262516A2 (en) * | 1986-09-29 | 1988-04-06 | Miles Inc. | Genetic transformation of lactic acid bacteria |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2417410C2 (en) * | 1973-04-11 | 1983-02-24 | Cincinnati Milacron-Heald Corp., 01606 Worcester, Mass. | Grinding machine for processing hollow cylindrical workpieces with a cross-section deviating from the circular shape |
DE2917535C2 (en) * | 1979-04-30 | 1986-10-30 | Hoechst Ag, 6230 Frankfurt | Insulin solutions resistant to denaturation |
GB8613388D0 (en) * | 1986-06-03 | 1986-07-09 | Delta Biotechnology Ltd | Induction of galactose regulated gene expression in yeast |
-
1988
- 1988-09-07 GB GB888820951A patent/GB8820951D0/en active Pending
-
1989
- 1989-09-06 IE IE286489A patent/IE61268B1/en not_active IP Right Cessation
- 1989-09-06 DE DE68921063T patent/DE68921063T2/en not_active Expired - Fee Related
- 1989-09-06 HU HU895572A patent/HU207350B/en not_active IP Right Cessation
- 1989-09-06 EP EP89910461A patent/EP0386222B1/en not_active Expired - Lifetime
- 1989-09-06 WO PCT/GB1989/001046 patent/WO1990002808A2/en active IP Right Grant
- 1989-09-06 KR KR1019900700909A patent/KR900702001A/en not_active Application Discontinuation
- 1989-09-06 JP JP1509770A patent/JP2996405B2/en not_active Expired - Fee Related
- 1989-09-06 AU AU43107/89A patent/AU618413B2/en not_active Ceased
- 1989-09-06 AT AT89910461T patent/ATE118249T1/en not_active IP Right Cessation
- 1989-09-07 ZA ZA896847A patent/ZA896847B/en unknown
- 1989-09-07 CA CA000610647A patent/CA1336416C/en not_active Expired - Fee Related
-
1990
- 1990-05-01 DK DK107490A patent/DK107490A/en not_active Application Discontinuation
- 1990-05-04 FI FI902259A patent/FI96040C/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0073646A2 (en) * | 1981-08-28 | 1983-03-09 | Genentech, Inc. | Construction of DNA sequences and their use for microbial production of proteins, in particular human serum albumin |
EP0262516A2 (en) * | 1986-09-29 | 1988-04-06 | Miles Inc. | Genetic transformation of lactic acid bacteria |
Non-Patent Citations (2)
Title |
---|
Dialog Information Services, File 5, Biosis, Biosis number 82023603, KI W K et al: "Development of yeast saccharomyces - cere-visiae vector system for eukaryotic gene cloning optimum condition for intact yeast cell transformation and plasmid stability in the transofrmants", Korean J appl Microbiol bioeng 14(2), 1986, 125-132. * |
Gene, Vol. 25, 1983 Robert J. Klebe et al: "A general method for polyethylene-glycol-induced genetec transformation of bacteria and yeast. ", see page 333 - page 341. * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0404317A2 (en) * | 1989-06-22 | 1990-12-27 | Petrolite Corporation | Use of ethoxylated propoxylated alcohols to prevent or reduce foam in fermentation broths |
EP0404317A3 (en) * | 1989-06-22 | 1991-10-02 | Petrolite Corporation | Use of ethoxylated propoxylated alcohols to prevent or reduce foam in fermentation broths |
EP0504823A2 (en) * | 1991-03-20 | 1992-09-23 | The Green Cross Corporation | Method for producing human serum albumin |
EP0504823A3 (en) * | 1991-03-20 | 1993-04-07 | The Green Cross Corporation | Method for producing human serum albumin |
EP1004673A1 (en) * | 1997-04-03 | 2000-05-31 | Yoshitomi Pharmaceutical Industries, Ltd. | Process for producing foreign proteins |
EP1004673A4 (en) * | 1997-04-03 | 2003-01-15 | Mitsubishi Pharma Corp | Process for producing foreign proteins |
Also Published As
Publication number | Publication date |
---|---|
ZA896847B (en) | 1990-07-25 |
WO1990002808A3 (en) | 1990-04-19 |
FI96040C (en) | 1996-04-25 |
DK107490D0 (en) | 1990-05-01 |
ATE118249T1 (en) | 1995-02-15 |
KR900702001A (en) | 1990-12-05 |
IE61268B1 (en) | 1994-10-19 |
DE68921063T2 (en) | 1995-07-06 |
DE68921063D1 (en) | 1995-03-23 |
AU618413B2 (en) | 1991-12-19 |
DK107490A (en) | 1990-05-01 |
IE892864L (en) | 1990-03-07 |
HUT56398A (en) | 1991-08-28 |
FI902259A0 (en) | 1990-05-04 |
CA1336416C (en) | 1995-07-25 |
FI96040B (en) | 1996-01-15 |
HU207350B (en) | 1993-03-29 |
AU4310789A (en) | 1990-04-02 |
GB8820951D0 (en) | 1988-10-05 |
EP0386222B1 (en) | 1995-02-08 |
JPH03500969A (en) | 1991-03-07 |
EP0386222A1 (en) | 1990-09-12 |
HU895572D0 (en) | 1991-07-29 |
JP2996405B2 (en) | 1999-12-27 |
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