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Rat Sertoli cells acquire a. beta. -adrenergic response during primary culture

Journal Article · · Proc. Natl. Acad. Sci. U.S.A.; (United States)
Two-dimensional polyacrylamide gel electrophoresis and the radioligand (-)-(/sup 125/I)iodopindolol (/sup 125/I-Pin) have been used to study isoproterenol-dependent protein phosphorylation and ..beta..-adrenergic receptor availability, respectively, in cultured Sertoli cells and freshly isolated seminiferous tubular segments of sexually immature and mature rats. Sertoli cells prepared from sexually immature rats show progressive /sup 125/I-Pin binding in primary cultures that correlates with isoproterenol-induced cell shape changes, redistribution of immunoreactive vimentin, and phosphorylation of this intermediate filament protein. Seminiferous tubules do not show significant isoproterenol-dependent vimentin phosphorylation nor /sup 125/I-Pin binding. However, vimentin phosphorylation can be induced by follicle-stimulating hormone or a cyclic nucleotide analog. This study stresses the need for correlating pharmacological-induced responses observed in Sertoli cell primary cultures with those in the intact seminiferous tubule.
Research Organization:
Univ. of North Carolina, Chapel Hill
OSTI ID:
6380730
Journal Information:
Proc. Natl. Acad. Sci. U.S.A.; (United States), Journal Name: Proc. Natl. Acad. Sci. U.S.A.; (United States) Vol. 82:7; ISSN PNASA
Country of Publication:
United States
Language:
English