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The growth requirements of BHK-21 cells in serum-free culture

✍ Scribed by Gary L Bradshaw; Gordon H. Sato; Don B. McClure; George R. Dubes

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
614 KB
Volume
114
Category
Article
ISSN
0021-9541

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✦ Synopsis

Abstract

A serum‐free medium for serial culture of baby hamster kidney cell line 21 (BHK‐21) as container‐adherent cells was developed. The medium is a 1:1 (v/v) mixture of Dulbecco's modified Eagle's medium and Ham's F‐12 medium supplemented with fibroblast growth factor, fibronectin, insulin, oleic acid (preincubated with fatty‐acid‐free bovine serum albumin as carrier), and transferrin. The fibronectin was required for cell adherence, the other factors for optimal cell multiplication. When cell input was greater than about 1,900 cells/cm^2^, this serum‐free medium supported cell multiplication at a rate approximately equal to the rate in medium with 10% serum. At lower cell input, growth in the serum‐free medium was poor unless it was supplemented with serum‐free medium which had been conditioned by BHK‐21 cells. The conditioned medium contained a factor(s) which enabled or stimulated cell multiplication.

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