Primary cultures of Leydig cells from rat, mouse and pig: advantages of porcine cells for the study of gonadotropin regulation of Leydig cell function - PubMed (original) (raw)
Comparative Study
Primary cultures of Leydig cells from rat, mouse and pig: advantages of porcine cells for the study of gonadotropin regulation of Leydig cell function
J P Mather et al. Steroids. 1981 Jul.
Abstract
Primary cultures of interstitial cells were prepared from the testis of mice, rats, and pigs. The cells were grown in a defined medium supplemented with low (0.1%) serum and insulin, transferrin and epidermal growth factor. Comparisons of the interstitial cell cultures from the three species were made for plating efficiency, cell survival, maintenance of hCG receptors and maintenance of steroidogenic responsiveness to hCG. The porcine cultures had a higher plating efficiency and higher hCG receptor levels per cell than Leydig cells from either rodent. Additionally, the porcine cells showed an increase in testosterone (T) production with hCG stimulation throughout their lifespan in culture while the rodent cultures showed a decrease in T stimulation with time with no stimulation by day 6 in culture. These data indicate that species differences exist in hCG receptor concentrations per cell, the maintenance of hCG receptors and steroidogenic response in culture. The initial high survival, purity and continued functional response of porcine interstitial cell cultures make them a superior system for the study of gonadotropin regulation of Leydig cell function.
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