PMID- 11369514 OWN - NLM STAT- MEDLINE DCOM- 20010809 LR - 20221207 IS - 0898-6568 (Print) IS - 0898-6568 (Linking) VI - 13 IP - 5 DP - 2001 May TI - Tumor necrosis factor-alpha is induced through phorbol ester--and glycated human albumin-dependent pathway in THP-1 cells. PG - 331-4 AB - Tumor necrosis factor-alpha (TNF-alpha) is involved in insulin resistance. Since the fact that peroxisome proliferator-activated receptor gamma (PPARgamma) ligands inhibit the induction of TNF-alpha by phorbol ester, but not by lipopolysaccharide (LPS), suggests two pathways to induce TNF-alpha, we investigated the mechanisms of glycated human albumin (GHA)- or phorbol ester-induced TNF-alpha in THP-1 cells. GHA induced TNF-alpha release in differentiated THP-1 cells, while phorbol ester induced TNF-alpha release in undifferentiated cells but did not induce TNF-alpha in differentiated cells. Forskolin (adenylate cyclase activator) affected more the GHA-induced TNF-alpha release than the phorbol 12-myristate 13-acetate (PMA)-induced one in undifferentiated cells. Staurosporine [protein kinase-C (PK-C) inhibitor] and PD98059 [mitogen-activated protein kinase inhibitor (MAPK)] only partially inhibited GHA-induced TNF-alpha. Catalase completely inhibited GHA-induced TNF-alpha release; however, superoxide dismutase (SOD) had no effect. These results suggest at least two pathways to induce TNF-alpha (phorbol ester- and GHA-dependent ways) and that GHA-induced TNF-alpha release is through predominantly catalase-dependent way in differentiated THP-1 cells. FAU - Naitoh, T AU - Naitoh T AD - Nissan Chemical Industries, Ltd., Shiraoka Research Station of Biological Science, 1470 Shiraoka, Minamisaitama, 349-0294, Saitama, Japan. naitouta@nissanchem.co.jp FAU - Kitahara, M AU - Kitahara M FAU - Tsuruzoe, N AU - Tsuruzoe N LA - eng PT - Journal Article PL - England TA - Cell Signal JT - Cellular signalling JID - 8904683 RN - 0 (Carcinogens) RN - 0 (Enzyme Inhibitors) RN - 0 (Flavonoids) RN - 0 (Glycation End Products, Advanced) RN - 0 (Serum Albumin) RN - 0 (Tumor Necrosis Factor-alpha) RN - 1F7A44V6OU (Colforsin) RN - E0399OZS9N (Cyclic AMP) RN - EC 1.11.1.6 (Catalase) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EC 2.7.11.13 (Protein Kinase C) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - H88EPA0A3N (Staurosporine) RN - NI40JAQ945 (Tetradecanoylphorbol Acetate) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) RN - 0 (Glycated Serum Albumin) SB - IM MH - Carcinogens/*pharmacology MH - Catalase/pharmacology MH - Cell Differentiation/physiology MH - Cell Line MH - Colforsin/pharmacology MH - Cyclic AMP/metabolism MH - Dose-Response Relationship, Drug MH - Enzyme Inhibitors/pharmacology MH - Flavonoids/pharmacology MH - Glycation End Products, Advanced MH - Humans MH - Insulin Resistance/physiology MH - Mitogen-Activated Protein Kinases/antagonists & inhibitors/metabolism MH - Monocytes/cytology/*enzymology MH - Protein Kinase C/antagonists & inhibitors/metabolism MH - Serum Albumin/*pharmacology MH - Signal Transduction/*drug effects/physiology MH - Staurosporine/pharmacology MH - Superoxide Dismutase/pharmacology MH - Tetradecanoylphorbol Acetate/*pharmacology MH - Tumor Necrosis Factor-alpha/*metabolism MH - Glycated Serum Albumin EDAT- 2001/05/23 10:00 MHDA- 2001/08/10 10:01 CRDT- 2001/05/23 10:00 PHST- 2001/05/23 10:00 [pubmed] PHST- 2001/08/10 10:01 [medline] PHST- 2001/05/23 10:00 [entrez] AID - S0898-6568(01)00152-8 [pii] AID - 10.1016/s0898-6568(01)00152-8 [doi] PST - ppublish SO - Cell Signal. 2001 May;13(5):331-4. doi: 10.1016/s0898-6568(01)00152-8.