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The effect of TNF-alpha on cell death in rat fetal brown adipocytes maintained in primary culture was determined. TNF-alpha inhibited proliferation and induced apoptosis in these cells. Most of the cells undergoing apoptosis after TNF-alpha treatment did not express PCNA, suggesting an induction of apoptosis by TNF-alpha in non-proliferative cells. IGF-I but not EGF prevented TNF-alpha-induced apoptosis.
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Porrás et al. (1997) studied this question.
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