PMID- 17932106 OWN - NLM STAT- MEDLINE DCOM- 20080709 LR - 20211020 IS - 0888-8809 (Print) IS - 1944-9917 (Electronic) IS - 0888-8809 (Linking) VI - 22 IP - 2 DP - 2008 Feb TI - CBP Is a dosage-dependent regulator of nuclear factor-kappaB suppression by the estrogen receptor. PG - 263-72 AB - The estrogen receptor (ER) protects against debilitating effects of the inflammatory response by inhibiting the proinflammatory transcription factor nuclear factor-kappaB (NFkappaB). Heretofore cAMP response element-binding protein (CREB)-binding protein (CBP) has been suggested to mediate inhibitory cross talk by functioning either as a scaffold that links ER and NFkappaB or as a required cofactor that competitively binds to one or the other transcriptional factor. However, here we demonstrate that ER is recruited to the NFkappaB response element of the MCP-1 (monocyte chemoattractant protein-1) and IL-8 promoters and displaces CBP, but not p65, in the MCF-7 breast cancer cell line. In contrast, ER displaced p65 and associated coregulators from the IL-6 promoter, demonstrating a gene-specific role for CBP in integrating inflammatory and steroid signaling. Further, RNA interference and overexpression studies demonstrated that CBP dosage regulates estrogen-mediated suppression of MCP-1 and IL-8, but not IL-6, gene expression. This work further demonstrates that CBP dosage is a critical regulator of gene-specific signal integration between the ER- and NFkappaB-signaling pathways. FAU - Nettles, Kendall W AU - Nettles KW AD - Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL 33458, USA. knettles@scripps.edu FAU - Gil, German AU - Gil G FAU - Nowak, Jason AU - Nowak J FAU - Metivier, Raphael AU - Metivier R FAU - Sharma, Vandana B AU - Sharma VB FAU - Greene, Geoffrey L AU - Greene GL LA - eng GR - R01 CA089489/CA/NCI NIH HHS/United States GR - 5R01 CA 89489/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20071011 PL - United States TA - Mol Endocrinol JT - Molecular endocrinology (Baltimore, Md.) JID - 8801431 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Estrogen Receptor alpha) RN - 0 (Interleukin-6) RN - 0 (Interleukin-8) RN - 0 (NF-kappa B) RN - 0 (Transcription Factor RelA) RN - 0 (Tumor Necrosis Factor-alpha) RN - 4TI98Z838E (Estradiol) RN - EC 2.3.1.48 (CREB-Binding Protein) RN - EC 2.3.1.48 (CREBBP protein, human) SB - IM MH - Blotting, Northern MH - CREB-Binding Protein/genetics/*metabolism MH - Cell Line, Tumor MH - Chemokine CCL2/genetics/metabolism MH - Chromatin Immunoprecipitation MH - Electrophoretic Mobility Shift Assay MH - Estradiol/metabolism MH - Estrogen Receptor alpha/genetics/*metabolism MH - Fluorescent Antibody Technique MH - Gene Expression Regulation/drug effects MH - Humans MH - Immunoprecipitation MH - Interleukin-6/genetics MH - Interleukin-8/genetics MH - Models, Biological MH - NF-kappa B/*metabolism MH - Polymerase Chain Reaction MH - Protein Binding MH - Transcription Factor RelA/metabolism MH - Tumor Necrosis Factor-alpha/metabolism PMC - PMC2234588 EDAT- 2007/10/13 09:00 MHDA- 2008/07/10 09:00 PMCR- 2009/02/01 CRDT- 2007/10/13 09:00 PHST- 2007/10/13 09:00 [pubmed] PHST- 2008/07/10 09:00 [medline] PHST- 2007/10/13 09:00 [entrez] PHST- 2009/02/01 00:00 [pmc-release] AID - me.2007-0324 [pii] AID - 4179 [pii] AID - 10.1210/me.2007-0324 [doi] PST - ppublish SO - Mol Endocrinol. 2008 Feb;22(2):263-72. doi: 10.1210/me.2007-0324. Epub 2007 Oct 11.