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Stimulation by other hormones or cAMP is not required for hormone secretion.
Propagation:
ATCC complete growth medium: The base medium for this cell line is F-12 Nutrient Mixture (Ham). To make the complete growth medium, add the following components to the base medium:
fetal bovine serum to a final concentration of 2.5%
Subcultivation Ratio: A subcultivation ratio of 1:2 to 1:3 is recommended Medium Renewal: Add fresh medium at least twice per week Remove medium, and rinse with 0.25% trypsin, 0.03% EDTA solution. Remove the solution and add an additional 1 to 2 ml of trypsin-EDTA solution. Allow the flask to sit at room temperature (or at 37C) until the cells detach. Add fresh culture medium, aspirate and dispense into new culture flasks.
1100: Shin SI, et al. Studies on interstitial cells in tissue culture. II. Steroid biosynthesis by a clonal line of rat testicular interstitial cells. Endocrinology 82: 614-616, 1968. PubMed: 4868022