PMID- 9703499 OWN - NLM STAT- MEDLINE DCOM- 19980825 LR - 20220225 IS - 0036-8075 (Print) IS - 0036-8075 (Linking) VI - 281 IP - 5379 DP - 1998 Aug 14 TI - Feedback inhibition of macrophage tumor necrosis factor-alpha production by tristetraprolin. PG - 1001-5 AB - Tumor necrosis factor-alpha (TNF-alpha) is a major mediator of both acute and chronic inflammatory responses in many diseases. Tristetraprolin (TTP), the prototype of a class of Cys-Cys-Cys-His (CCCH) zinc finger proteins, inhibited TNF-alpha production from macrophages by destabilizing its messenger RNA. This effect appeared to result from direct TTP binding to the AU-rich element of the TNF-alpha messenger RNA. TTP is a cytosolic protein in these cells, and its biosynthesis was induced by the same agents that stimulate TNF-alpha production, including TNF-alpha itself. These findings identify TTP as a component of a negative feedback loop that interferes with TNF-alpha production by destabilizing its messenger RNA. This pathway represents a potential target for anti-TNF-alpha therapies. FAU - Carballo, E AU - Carballo E AD - Office of Clinical Research and Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA. FAU - Lai, W S AU - Lai WS FAU - Blackshear, P J AU - Blackshear PJ LA - eng PT - Journal Article PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 RN - 0 (DNA-Binding Proteins) RN - 0 (Immediate-Early Proteins) RN - 0 (Lipopolysaccharides) RN - 0 (Proteins) RN - 0 (RNA Probes) RN - 0 (RNA, Messenger) RN - 0 (Tristetraprolin) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (ZFP36 protein, human) RN - 0 (Zfp36 protein, mouse) SB - IM MH - 3T3 Cells MH - Animals MH - Base Sequence MH - Biological Transport MH - Cell Line MH - Cell Nucleus/metabolism MH - Chick Embryo MH - Cytosol/metabolism MH - *DNA-Binding Proteins MH - Feedback MH - Gene Expression Regulation MH - Humans MH - *Immediate-Early Proteins MH - Lipopolysaccharides/pharmacology MH - Macrophages/*physiology MH - Mice MH - Mice, Knockout MH - Proteins/*physiology MH - RNA Probes MH - RNA, Messenger/chemistry/genetics/metabolism MH - Transfection MH - Tristetraprolin MH - Tumor Necrosis Factor-alpha/antagonists & inhibitors/*biosynthesis/genetics MH - *Zinc Fingers EDAT- 1998/08/14 00:00 MHDA- 1998/08/14 00:01 CRDT- 1998/08/14 00:00 PHST- 1998/08/14 00:00 [pubmed] PHST- 1998/08/14 00:01 [medline] PHST- 1998/08/14 00:00 [entrez] AID - 10.1126/science.281.5379.1001 [doi] PST - ppublish SO - Science. 1998 Aug 14;281(5379):1001-5. doi: 10.1126/science.281.5379.1001.