Tumor necrosis factor-alpha inhibits collagen synthesis and alkaline phosphatase activity independently of its effect on deoxyribonucleic acid synthesis in osteoblast-enriched bone cell cultures.

Abstract

Tumor necrosis factor-alpha (TNF alpha), a product of activated monocytes, induces tissue wasting in certain solid tumors in vivo and in in vitro model systems. Recent studies indicate that TNF alpha also regulates cell replication and expression of differentiated function in a variety of nonneoplastic cell systems. Since monocyte products could accumulate… (More)

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