Metode for å produsere et polypeptid i en storskala-produksjon cellekultur

Sammendrag Et forbedret system for storskala-produksjon av proteiner ogleller polypeptider i cellekultur, spesielt i media karakterisert ved én eller flere av: i) en kumulativ aminosyre-konsentrasjon stØrre enn ca. 70 mM; ii) et molart kumulativt glutamin til kumulativ asparagin forhold på mindre en...

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Hauptverfasser: Luan, Yen-Tung, Lasko, Daniel R, Wang, Wenge, Drapeau, Denis, Mercer, James R
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creator Luan, Yen-Tung
Lasko, Daniel R
Wang, Wenge
Drapeau, Denis
Mercer, James R
description Sammendrag Et forbedret system for storskala-produksjon av proteiner ogleller polypeptider i cellekultur, spesielt i media karakterisert ved én eller flere av: i) en kumulativ aminosyre-konsentrasjon stØrre enn ca. 70 mM; ii) et molart kumulativt glutamin til kumulativ asparagin forhold på mindre enn ca. 2; iii) et molart kumulativ glutamin til kumulativ total aminosyre forhold på n-findre enn ca. 0,2; iv) et molart kumulativt uorganisk ion til kumulativ total aminosyre forhold mellom ca. 0,4 til l; eller v) en kombinert kumulativ glutamin- og kumulativ asparagin-konsentrasjon mellom ca. 16 og 36 mM er gitt. Anvendelse av et slikt system tillater høye nivåer av protein-produksjon og minker akkumulering av visse uønskede faktorer så som ammonium og/eller laktat. I tillegg er kulturmetoder omfattende et temperaturskift, typisk omfattende en reduksjon av temperatur n'ar kulturen har n'add ca. 20-80 % av den maksimale celletetthet, gitt. Altemativt eller i tillegg tilveiebringer foreliggende oppfinnelse metoder slik at, etter å ha nådd en topp, laktat- og/eller animonium-niv'aer i kulturen reduseres over tid. An improved system for large scale production of proteins and/or polypeptides in cell culture, particularly in media characterized by one or more of: i) a cumulative amino acid concentration greater than about 70 mM; ii) a molar cumulative glutamine to cumulative asparagine ratio of less than about 2; iii) a molar cumulative glutamine to cumulative total amino acid ratio of less than about 0.2; iv) a molar cumulative inorganic ion to cumulative total amino acid ratio between about 0.4 to 1; or v) a combined cumulative glutamine and cumulative asparagine concentration between about 16 and 36 mM, is provided. The use of such a system allows high levels of protein production and lessens accumulation of certain undesirable factors such as ammonium and/or lactate. Additionally, culture methods including a temperature shift, typically including a decrease in temperature when the culture has reached about 20-80% of it maximal cell density, are provided. Alternatively or additionally, the present invention provides methods such that, after reaching a peak, lactate and/or ammonium levels in the culture decrease.
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Anvendelse av et slikt system tillater høye nivåer av protein-produksjon og minker akkumulering av visse uønskede faktorer så som ammonium og/eller laktat. I tillegg er kulturmetoder omfattende et temperaturskift, typisk omfattende en reduksjon av temperatur n'ar kulturen har n'add ca. 20-80 % av den maksimale celletetthet, gitt. Altemativt eller i tillegg tilveiebringer foreliggende oppfinnelse metoder slik at, etter å ha nådd en topp, laktat- og/eller animonium-niv'aer i kulturen reduseres over tid. 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Anvendelse av et slikt system tillater høye nivåer av protein-produksjon og minker akkumulering av visse uønskede faktorer så som ammonium og/eller laktat. I tillegg er kulturmetoder omfattende et temperaturskift, typisk omfattende en reduksjon av temperatur n'ar kulturen har n'add ca. 20-80 % av den maksimale celletetthet, gitt. Altemativt eller i tillegg tilveiebringer foreliggende oppfinnelse metoder slik at, etter å ha nådd en topp, laktat- og/eller animonium-niv'aer i kulturen reduseres over tid. An improved system for large scale production of proteins and/or polypeptides in cell culture, particularly in media characterized by one or more of: i) a cumulative amino acid concentration greater than about 70 mM; ii) a molar cumulative glutamine to cumulative asparagine ratio of less than about 2; iii) a molar cumulative glutamine to cumulative total amino acid ratio of less than about 0.2; iv) a molar cumulative inorganic ion to cumulative total amino acid ratio between about 0.4 to 1; or v) a combined cumulative glutamine and cumulative asparagine concentration between about 16 and 36 mM, is provided. The use of such a system allows high levels of protein production and lessens accumulation of certain undesirable factors such as ammonium and/or lactate. Additionally, culture methods including a temperature shift, typically including a decrease in temperature when the culture has reached about 20-80% of it maximal cell density, are provided. 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Anvendelse av et slikt system tillater høye nivåer av protein-produksjon og minker akkumulering av visse uønskede faktorer så som ammonium og/eller laktat. I tillegg er kulturmetoder omfattende et temperaturskift, typisk omfattende en reduksjon av temperatur n'ar kulturen har n'add ca. 20-80 % av den maksimale celletetthet, gitt. Altemativt eller i tillegg tilveiebringer foreliggende oppfinnelse metoder slik at, etter å ha nådd en topp, laktat- og/eller animonium-niv'aer i kulturen reduseres over tid. An improved system for large scale production of proteins and/or polypeptides in cell culture, particularly in media characterized by one or more of: i) a cumulative amino acid concentration greater than about 70 mM; ii) a molar cumulative glutamine to cumulative asparagine ratio of less than about 2; iii) a molar cumulative glutamine to cumulative total amino acid ratio of less than about 0.2; iv) a molar cumulative inorganic ion to cumulative total amino acid ratio between about 0.4 to 1; or v) a combined cumulative glutamine and cumulative asparagine concentration between about 16 and 36 mM, is provided. The use of such a system allows high levels of protein production and lessens accumulation of certain undesirable factors such as ammonium and/or lactate. Additionally, culture methods including a temperature shift, typically including a decrease in temperature when the culture has reached about 20-80% of it maximal cell density, are provided. Alternatively or additionally, the present invention provides methods such that, after reaching a peak, lactate and/or ammonium levels in the culture decrease.</abstract><oa>free_for_read</oa></addata></record>
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subjects BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
title Metode for å produsere et polypeptid i en storskala-produksjon cellekultur
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