PMID- 1733731 OWN - NLM STAT- MEDLINE DCOM- 19920303 LR - 20131121 IS - 0013-7227 (Print) IS - 0013-7227 (Linking) VI - 130 IP - 2 DP - 1992 Feb TI - Tumor necrosis factor-alpha alters bovine luteal cell synthetic capacity and viability. PG - 854-60 AB - Tumor necrosis factor-alpha (TNF-alpha) is a macrophage-derived cytokine that is also reportedly produced by granulosal cells and is localized in luteal cells. The present study employed serum-free culture of midcycle bovine luteal cells to investigate the effects of TNF-alpha, alone and with other cytokines, on luteal function. TNF-alpha (1-1000 ng/ml) produced a dose-dependent increase in prostaglandin (PG)F2 alpha and 6-keto-PGF1 alpha synthesis on all days of culture, but had no effect on basal progesterone (P4) production. TNF-alpha, in combination with other known stimulators of luteal PG synthesis, interleukin-1 beta (2.5 ng/ml) or interferon-gamma (IFN-gamma, 100 U/ml), had synergistic effects on PGF2 alpha production (greater than 50-fold above control, P less than 0.05) whereas interferon-alpha (1000 U/ml) significantly suppressed TNF-alpha-stimulated PGF2 alpha production. By day 7 of culture, TNF-alpha inhibited LH-stimulated P4 production (P less than 0.05). Luteal cell numbers were significantly reduced by IFN-gamma but not by TNF-alpha alone. However, the combination of TNF-alpha + IFN-gamma was extremely cytotoxic (only 20% of cells maintained as compared to control). Finally, TNF-alpha (100 ng/ml) enhanced the expression of Class I major histocompatibility complex antigens on cultured bovine luteal cells but did not alter IFN-gamma induction of Class II major histocompatibility complex antigens. In light of these findings, it appears that TNF-alpha, in conjunction with other cytokines, is a modulator of luteal cell function in vitro. The stimulation of PG synthesis, as well as cytotoxic effects of TNF-alpha, may suggest a role in luteolysis. FAU - Benyo, D F AU - Benyo DF AD - Department of Dairy Science, Ohio State University, Columbus 43210. FAU - Pate, J L AU - Pate JL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Endocrinology JT - Endocrinology JID - 0375040 RN - 0 (Interleukin-1) RN - 0 (Recombinant Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 4G7DS2Q64Y (Progesterone) RN - 58962-34-8 (6-Ketoprostaglandin F1 alpha) RN - 82115-62-6 (Interferon-gamma) RN - B7IN85G1HY (Dinoprost) SB - IM MH - 6-Ketoprostaglandin F1 alpha/*metabolism MH - Animals MH - Cattle MH - Cell Survival/drug effects MH - Cells, Cultured MH - Corpus Luteum/cytology/*drug effects/metabolism MH - Dinoprost/*metabolism MH - Dose-Response Relationship, Drug MH - Drug Interactions MH - Female MH - Humans MH - Interferon-gamma/pharmacology MH - Interleukin-1/pharmacology MH - Kinetics MH - Progesterone/*metabolism MH - Radioimmunoassay MH - Recombinant Proteins/pharmacology MH - Tumor Necrosis Factor-alpha/*pharmacology EDAT- 1992/02/01 00:00 MHDA- 1992/02/01 00:01 CRDT- 1992/02/01 00:00 PHST- 1992/02/01 00:00 [pubmed] PHST- 1992/02/01 00:01 [medline] PHST- 1992/02/01 00:00 [entrez] AID - 10.1210/endo.130.2.1733731 [doi] PST - ppublish SO - Endocrinology. 1992 Feb;130(2):854-60. doi: 10.1210/endo.130.2.1733731.