PMID- 2763024 OWN - NLM STAT- MEDLINE DCOM- 19890908 LR - 20131121 IS - 0039-6060 (Print) IS - 0039-6060 (Linking) VI - 106 IP - 2 DP - 1989 Aug TI - Selective effects of tumor necrosis factor-alpha on wound healing in rats. PG - 171-5; discussion 175-6 AB - Many growth factors are believed to act simultaneously in wounds. Tumor necrosis factor-alpha (TNF-alpha) is a cytokine released by activated macrophages. In various concentrations it has inflammatory, cytolytic, mitogenic, antitumor, and possibly angiogenic or antiangiogenic effects; therefore it is likely to affect wound healing. With stainless steel wire mesh wound cylinders implanted in rats, we tested topical TNF-alpha in wounds, alone and in combination with platelet-derived growth factor (PDGF) and transforming growth factor-beta (TGF-beta). The cylinders were injected daily for a total of 12 days, after which we measured the accumulation of protein, DNA, and hydroxyproline in each cylinder. TNF-alpha had little effect by itself; it inhibited the growth-promoting effects of TGF-beta, but it did not influence the effects of PDGF. These results agree with the in vitro studies showing synergism of TNF-alpha and PDGF and antagonism between TGF-beta and TNF-alpha. They also suggest that TGF-beta may have a negligible role in normal healing and emphasize that interaction of growth factors must be understood before appropriate clinical use can be planned. FAU - Steenfos, H H AU - Steenfos HH AD - Department of Surgery, University of California, San Francisco 94143-0144. FAU - Hunt, T K AU - Hunt TK FAU - Scheuenstuhl, H AU - Scheuenstuhl H FAU - Goodson, W H 3rd AU - Goodson WH 3rd LA - eng GR - GM 27345/GM/NIGMS NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Surgery JT - Surgery JID - 0417347 RN - 0 (Platelet-Derived Growth Factor) RN - 0 (Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 9007-34-5 (Collagen) RN - 9007-49-2 (DNA) RN - RMB44WO89X (Hydroxyproline) SB - IM MH - Animals MH - Cell Division/drug effects MH - Collagen/metabolism MH - DNA/metabolism MH - Hydroxyproline/metabolism MH - Male MH - Platelet-Derived Growth Factor/pharmacology MH - Proteins/metabolism MH - Rats MH - Rats, Inbred Strains MH - Tumor Necrosis Factor-alpha/*pharmacology MH - Wound Healing/*drug effects EDAT- 1989/08/01 00:00 MHDA- 1989/08/01 00:01 CRDT- 1989/08/01 00:00 PHST- 1989/08/01 00:00 [pubmed] PHST- 1989/08/01 00:01 [medline] PHST- 1989/08/01 00:00 [entrez] AID - 0039-6060(89)90205-5 [pii] PST - ppublish SO - Surgery. 1989 Aug;106(2):171-5; discussion 175-6.