PMID- 27438970 OWN - NLM STAT- MEDLINE DCOM- 20180129 LR - 20180129 IS - 2175-8239 (Electronic) IS - 0101-2800 (Linking) VI - 38 IP - 2 DP - 2016 Jun TI - p-cresol but not p-cresyl sulfate stimulate MCP-1 production via NF-kappaB p65 in human vascular smooth muscle cells. PG - 153-60 LID - S0101-28002016000200153 [pii] LID - 10.5935/0101-2800.20160024 [doi] AB - INTRODUCTION: p-cresol (PC) and p-cresyl sulfate (PCS) are responsible for many of the uremia clinical consequences, such as atherosclerosis in Chronic Kidney Disease (CKD) patients. OBJECTIVES: We investigate the in vitro impact of PC and PCS on monocyte chemoattractant protein-1 (MCP-1) expression via NF-kappa B (NF-kappaB) p65 in VSMC. METHODS: PCS was synthesized by PC sulfatation. VSMC were extracted by enzymatic digestion of umbilical cord vein and characterized by immunofluorescence against alpha-actin antibody. The cells were treated with PC and PCS at their normal (n), uremic (u) and maximum uremic concentrations (m). Cell viability was assessed by MTT. MCP-1 expression was investigated by ELISA in cells supernatants after toxins treatment with or without the NF-kappaB p65 inhibitor. RESULTS: There was no significant difference in cell viability after toxins treatment for all concentrations tested. There was a significant increase in MCP-1 expression in cells treated with PCu and PCm (p < 0.001) and PCSn, PCSu and PCSm (p < 0.001), compared with the control. When VSMC were treated with the NF-kappaB p65 inhibitor plus PCu and PCm, there was a significant decrease in MCP-1 production (p < 0.005). This effect was not observed with PCS. CONCLUSIONS: VSMC are involved in atherosclerosis lesion formation and production of MCP-1, which contributes to the inflammatory response initiation. Our results suggest that PC mediates MCP-1 production in VSMC, probably through NF-kappaB p65 pathway, although we hypothesize that PCS acts through a different subunit pathway since NF-kappaB p65 inhibitor was not able to inhibit MCP-1 production. FAU - Maciel, Rayana Ariane Pereira AU - Maciel RA AD - Universidade Federal do Parana, Brazil. FAU - Rempel, Lisienny Campoli Tono AU - Rempel LC AD - Universidade Federal do Parana, Brazil. FAU - Bosquetti, Bruna AU - Bosquetti B AD - Universidade Federal do Parana, Brazil. FAU - Finco, Alessandra Becker AU - Finco AB AD - Universidade Federal do Parana, Brazil. FAU - Pecoits-Filho, Roberto AU - Pecoits-Filho R AD - Universidade Catolica do Parana, Brazil. FAU - Souza, Wesley Mauricio de AU - Souza WM AD - Universidade Federal do Parana, Brazil. FAU - Stinghen, Andrea Emilia Marques AU - Stinghen AE AD - Universidade Federal do Parana, Brazil. LA - eng LA - por PT - Journal Article TT - p-cresol mas nao p-cresil sulfato estimulam a producao de MCP-1 via NF-kappaB p65 em celulas vasculares musculares lisas humanas. PL - Brazil TA - J Bras Nefrol JT - Jornal brasileiro de nefrologia JID - 9426946 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Cresols) RN - 0 (Sulfuric Acid Esters) RN - 0 (Transcription Factor RelA) RN - 1MXY2UM8NV (4-cresol) RN - 56M34ZQY1S (4-cresol sulfate) SB - IM MH - Cells, Cultured MH - Chemokine CCL2/*biosynthesis/*drug effects MH - Cresols/*pharmacology MH - Humans MH - Muscle, Smooth, Vascular/*cytology/*metabolism MH - Sulfuric Acid Esters/*pharmacology MH - Transcription Factor RelA/*physiology EDAT- 2016/07/21 06:00 MHDA- 2018/01/30 06:00 CRDT- 2016/07/21 06:00 PHST- 2015/09/20 00:00 [received] PHST- 2015/11/11 00:00 [accepted] PHST- 2016/07/21 06:00 [entrez] PHST- 2016/07/21 06:00 [pubmed] PHST- 2018/01/30 06:00 [medline] AID - S0101-28002016000200153 [pii] AID - 10.5935/0101-2800.20160024 [doi] PST - ppublish SO - J Bras Nefrol. 2016 Jun;38(2):153-60. doi: 10.5935/0101-2800.20160024.