Interleukin-1 is a potent growth factor for immature rat sertoli cells.

Abstract:

:Testes from rats of different maturational ages were explored for presence of paracrine sertoli cell growth factors. Pubertal and adult testes contained a 17 kDa protein, with potent stimulatory effect on immature Sertoli cell multiplication in vitro. The bioactivity of this protein was mimicked by rat interleukin-1 (IL-1) and neutralized by IL-1 receptor antagonist. A receptor-mediated action was further supported by the demonstration of IL-1 receptor type I mRNA and protein expression in the cultured sertoli cells and in intact immature rat testes. IL-1alpha showed higher efficacy in stimulating proliferation than IL-1beta and follicle-stimulating hormone (FSH), and displayed synergistic action in combination with FSH. As IL-1alpha is constitutively produced by the rat testis and IL-1beta readily inducible by proinflammatory stimuli, our results suggest that IL-1 may serve as a growth factor for Sertoli cells under physiological and pathophysiological conditions.

journal_name

Mol Cell Endocrinol

authors

Petersen C,Boitani C,Fröysa B,Söder O

doi

10.1016/s0303-7207(01)00680-3

keywords:

subject

Has Abstract

pub_date

2002-01-15 00:00:00

pages

37-47

issue

1

eissn

0303-7207

issn

1872-8057

pii

S0303720701006803

journal_volume

186

pub_type

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