The cold-shock response in mammalian cells: investigating the HeLa cell cold-shock proteome

Underhill, Michele F. and Smales, C. Mark (2007) The cold-shock response in mammalian cells: investigating the HeLa cell cold-shock proteome. Cytotechnology, 53 (1-3). pp. 47-53. ISSN 0920-9069 . (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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In recent years there have been a number of reports that suggest the sub-physiological (< 37 degrees C) temperature in vitro culturing of mammalian cells can result in enhanced heterologous protein production. Despite these reports, the mechanisms by which mammalian cells respond to such conditions are largely unknown. We therefore set out to use a model in vitro culture HeLa cell system to begin investigating the cold-shock response in mammalian cell systems. Sub-physiological temperature cultivation resulted in reduced growth and proliferation and a lower total cell protein content. Proteomic analysis confirmed that HeLa cells actively respond to sub-physiological temperature by up-regulating a number of proteins and immunoblot analysis confirmed that specific proteins are indeed up-regulated in a time and temperature dependent manner. Additional work is likely to improve our understanding of the cold-shock response in mammalian cells and identify candidate target proteins for cell engineering to further enhance heterologous protein production at sub-physiological temperatures.

Item Type: Article
Uncontrolled keywords: cold-shock; HeLa cells; 2D-PAGE; bioprocessing; sub-physiological temperature culturing; recombinant protein production
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences > Cell & Developmental Biology Group
Depositing User: Maureen Cook
Date Deposited: 28 Apr 2008 09:03
Last Modified: 23 Apr 2014 10:52
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