PMID- 23276953 OWN - NLM STAT- MEDLINE DCOM- 20130612 LR - 20220224 IS - 2768-6698 (Electronic) IS - 1093-9946 (Print) IS - 2768-6698 (Linking) VI - 18 IP - 2 DP - 2013 Jan 1 TI - Homocysteine induces inflammatory transcriptional signaling in monocytes. PG - 685-95 AB - Hyperhomocysteinemia (HHcy) is an independent risk factor for cardiovascular disease. Here, we studied transcriptional regulation in homocysteine (Hcy)-induced gene expression in monocytes (MC). We identified 11 Hcy-induced genes, 17 anti-inflammatory cytokine interleukin 10-induced, 8 pro-inflammatory cytokine interferon gamma (IFN gamma)-induced and 8 pro-inflammatory cytokine tumor necrosis factor alpha (TNF alpha)-induced genes through literature search. Binding frequency of 36 transcription factors (TFs) implicated in inflammation and MC differentiation were analyzed within core promoter regions of identified genes, and classified into 3 classes based on the significant binding frequency to the promoter of Hcy-induced genes. Class 1 TFs exert high significant binding frequency in Hcy-induced genes. Class 2 and 3 TFs have low and no significant binding frequency, respectively. Class 1 TF binding occurrence in Hcy-induced genes is similar to that in IFN gamma -induced genes, but not that in TNF alpha -induced. We conclude that Hcy is a pro-inflammatory amino acid and induces inflammatory transcriptional signal pathways mediated by class 1 TF. We term class 1 TF as putative Hcy-responsive TFs. FAU - Meng, Shu AU - Meng S AD - Department of Pharmacology, Temple University School of Medicine, 3500 North Broad Street, 10th floor, Philadelphia, PA 19140, USA. FAU - Ciment, Stephen AU - Ciment S FAU - Jan, Michael AU - Jan M FAU - Tran, Tran AU - Tran T FAU - Pham, Hung AU - Pham H FAU - Cueto, Ramon AU - Cueto R FAU - Yang, Xiao-Feng AU - Yang XF FAU - Wang, Hong AU - Wang H LA - eng GR - HL82774/HL/NHLBI NIH HHS/United States GR - R01 HL108910/HL/NHLBI NIH HHS/United States GR - R01 HL077288/HL/NHLBI NIH HHS/United States GR - HL108910/HL/NHLBI NIH HHS/United States GR - HL77288/HL/NHLBI NIH HHS/United States GR - R01 HL117654/HL/NHLBI NIH HHS/United States GR - HL67033/HL/NHLBI NIH HHS/United States GR - R01 HL110764/HL/NHLBI NIH HHS/United States GR - HL11076/HL/NHLBI NIH HHS/United States GR - R01 HL094451/HL/NHLBI NIH HHS/United States GR - HL94451/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20130101 PL - Singapore TA - Front Biosci (Landmark Ed) JT - Frontiers in bioscience (Landmark edition) JID - 101612996 RN - 0 (Cytokines) RN - 0 (Transcription Factors) RN - 0LVT1QZ0BA (Homocysteine) RN - 130068-27-8 (Interleukin-10) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Cell Differentiation/drug effects MH - Cytokines/biosynthesis/*pharmacology MH - Gene Expression Regulation/drug effects MH - Homocysteine/*pharmacology MH - Humans MH - Hyperhomocysteinemia/metabolism MH - Interferon-gamma/pharmacology MH - Interleukin-10/pharmacology MH - Monocytes/cytology/drug effects/*metabolism MH - Promoter Regions, Genetic/physiology MH - Signal Transduction/*drug effects MH - Transcription Factors/*metabolism PMC - PMC3636574 MID - NIHMS449919 EDAT- 2013/01/02 06:00 MHDA- 2013/06/13 06:00 PMCR- 2013/04/26 CRDT- 2013/01/02 06:00 PHST- 2013/01/02 06:00 [entrez] PHST- 2013/01/02 06:00 [pubmed] PHST- 2013/06/13 06:00 [medline] PHST- 2013/04/26 00:00 [pmc-release] AID - 4131 [pii] AID - 10.2741/4131 [doi] PST - epublish SO - Front Biosci (Landmark Ed). 2013 Jan 1;18(2):685-95. doi: 10.2741/4131.