fulltext.study @t Gmail

Synergistic effects of basic fibroblast growth factor and insulin on Chinese hamster ovary cells under serum-free conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
22267 43264 2009 6 PDF Available
Title
Synergistic effects of basic fibroblast growth factor and insulin on Chinese hamster ovary cells under serum-free conditions
Abstract

Chinese hamster ovary (CHO) cells are commonly used in the biotechnology industry to produce recombinant proteins. The development of serum-free media in order to maintain mammalian cell viability and reduce cell death in the absence of serum is highly desirable. Our aim was to find new growth factors that could maintain viability and enhance the proliferation of CHO cells under serum-free conditions. Macrophage colony-stimulating factor (M-CSF)-secreting CHO cells were used as a model cell line to evaluate the stimulatory effects of different compounds, including two growth factors, on cell proliferation. Flow cytometry and fluorescence microscopy were used to analyze the cell cycle and monitor apoptotic nuclei during serum-free culture. Among the tested compounds, insulin and basic fibroblast growth factor (bFGF), each used alone, prevented CHO cells from dying and helped maintain cell viability, but cells were unable to re-enter the cell cycle and proliferate. Simultaneous supplementation with insulin and bFGF synergistically promoted the growth of CHO cells and recombinant M-CSF synthesis in basal DMEM/F12 medium. The mitogenic effects of bFGF and insulin under serum-free conditions were confirmed in the CHO-K1 cell line. These results provide useful information for the design and development of serum-free media as well as for antiapoptotic studies of CHO cells under serum-free conditions.

Keywords
Chinese hamster ovary cells; Insulin; Basic fibroblast growth factor; Macrophage colony-stimulating factor
First Page Preview
Synergistic effects of basic fibroblast growth factor and insulin on Chinese hamster ovary cells under serum-free conditions
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 107, Issue 3, March 2009, Pages 312–317
Authors
, ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us