Article
Endogenous insulin-like growth factors regulate the proliferation of TSH-independent mutants derived from FRTL5 cells.
Biochimie - 1 Apr 1999
Chieffi P, Picascia A, Stanzione R, Villone G, Tramontano D
Abstract excerpt
TSH-independent mutant clones (M cells) derived from FRTL5 cells, proliferate vigorously in the absence of TSH. The growth of M cells is stimulated by IGF-I in a dose-dependent fashion, but it is not influenced by TSH. Sm1.2, an antibody against IGF-I cross-reacting with IGF-II, significantly decreases basal DNA synthesis in the M cells. Binding of 125I-IGF-I to M cells is significantly lower than that to FRTL5...
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