DEVELOPMENT OF A SERUM-FREE MEDIUM FOR CELLS

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$500,000.00
Award Year:
1990
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
11472
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Biological Research Faculty &
10075-20 Tyler Pl, Ijamsville, MD, 21754
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THE MAIN OBJECTIVE OF THIS PHASE I PROJECT WAS TO ESTABLISH A SOURCE OF SERUM-FREE MEDIUM SUITABLE FOR SUSTAINED GROWTH OF EARLY PASSAGE SYRIAN HAMSTER EMBRYO (SHE) CELLS. SPECIFIC AIMS INCLUDED SELECTION OF A BASAL MEDIUM SUPPORTIVE OF CLONAL GROWTH IN LIMITING SERUM CONCENTRATIONS, REPLACEMENT OF SERUM BY SELECTED GROWTH FACTORS AND HORMONES, OPTIMIZATION OF SUPPLEMENTS BY CLONAL TITRATIONS, AND COMPARISON OF GROWTH CHARACTERISTICS IN SERUM-FREE AND CONVENTIONAL SERUM-SUPPLEMENTED MEDIA. THE SELECTED BASAL MEDIUM (DME/F-12) SUPPORTS CLONAL GROWTH OF SECONDARY SHE CELLS IN 1-PERCENT SERUM (FBS) WITHOUT FEEDER CELLS. AN INTERIM SERUM-FREE FORMULATION (DME/F-12, INSULIN, TRANSFERRIN, EPIDERMAL GROWTH FACTOR, SELENIUM, ASCORBIC ACID, BOVINE PITUITARY EXTRACT (BPE)) SUPPORTS CLONAL GROWTH WITH 3.8-PERCENT COLONY-FORMING EFFICIENCY (CFE). CLONAL TITRATION AND ADDITION/DELETION EXPERIMENTS HAVE PROVIDED SEVERAL CLUES CONCERNING STIMULATORY AND INHIBITORY FACTORS IN FBS. SOMATOMEDIN C (IGF-1) AND FIBROBLAST GROWTH FACTOR ARE STIMULATORY, TRANSFORMING GROWTH-FACTOR-BETA AND PLATELET-DERIVED GROWTH FACTOR ARE INHIBITORY, AND BPE CAN REPLACE FBS. CLONAL GROWTH 1-PERCENT CFE) HAS ALSO BEEN ACHIEVED IN THE ABSENCE OF BOTH BPE AND FBS. BECAUSE OF ITS VARIABILITY, ELIMINATION OF SERUM WILL FACILITATE STANDARDIZATION OF GENOTOXIC TESTING PROTOCOLS AND STUDIES ON THE INVOLVEMENT OF TRANSFORMING GROWTH FACTORS IN THE MECHANISM OF CARCINOGENESIS.

* information listed above is at the time of submission.

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