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Hyperosmotic pressure enhances immunoglobulin transcription rates and secretion rates of KR12H-2 transfectoma by Moon Sue Lee; Gyun Min Lee is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Hyperosmotic pressure enhances immunoglobulin transcription rates and secretion rates of KR12H-2 transfectoma about?

When subjected to hyperosmotic pressure resulting from NaCl addition, KR12H-2 transfectoma, like most hybridomas, displayed a decrease in specific growth rate (μ) and an increase in specific antibody productivity (q Ab ). Elevation of medium osmolality from 285 to 425 mOsm/kg decreased μ by 20%, while it increased q Ab by 376%. Although cell mass also increased at higher osmolality, it was not the main factor in increasing q Ab . Hyperosmotic pressure was found to enhance transcription levels of immunoglobulin (Ig) mRNAs preferentially, compared with non-IgG mRNA. The transcription levels of both heavy chain (HC) and light chain (LC) mRNAs were enhanced as much as q Ab . This result suggests that enhanced q Ab at higher osmolality was mainly due to enhanced transcription levels of Ig mRNA. However, these increased transcription levels of Ig mRNAs were not due to the enhanced stability of Ig mRNA. In fact, the stability of Ig mRNAs decreased at higher osmolality. Elevation of osmolality from 285 mOsm/kg to 425 mOsm/ kg decreased the half-lives of HC and LC mRNAs by 37% and 36%, respectively. A simple mathematical model revealed that transcription rates of Ig mRNAs increased by more

Who reads Hyperosmotic pressure enhances immunoglobulin transcription rates and secretion rates of KR12H-2 transfectoma?

It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.

Author
Moon Sue Lee; Gyun Min Lee
Publisher
John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0006-3592)
Published
2000
Language
EN
Field
Biochemistry, Genetics and Molecular Biology (Life Sciences)

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