title: PPAR‑γ agonist rosiglitazone protects rat peritoneal mesothelial cells against peritoneal dialysis solution‑induced damage.
abstract: Long-term peritoneal dialysis (PD) leads to ultrafiltration failure (UFF). Peritoneal mesothelial cells, which form the innermost monolayer of the peritoneal cavity, have been shown to regulate various responses, including inflammation, in UFF. The present study was designed to investigate the effect of the peroxisome proliferator‑activated receptor‑γ (PPAR‑γ) agonist, rosiglitazone, on peritoneal dialysis solution (PDS)‑induced injuries in rat peritoneal mesothelial cells (RPMCs). RPMCs were cultured for different durations and with different concentrations of PDS. The gene expression levels of aquaporin‑1 (AQP‑1) and zonula occluden‑1 (ZO‑1) were determined using reverse transcription‑quantitative polymerase chain reaction analysis. The protein levels of AQP‑1, ZO‑1 and PPAR‑γ were measured using western blot analysis. Interleukin (IL)‑6 and IL‑8 were detected using ELISA. The RPMCs were damaged by stimulation with 4.25% PDS for 72 h. The expression levels of AQP‑1 and ZO‑1 were increased, and the secretion of IL‑6 and IL‑8 were decreased by rosiglitazone. The use of the PPAR‑γ inhibitor, GW‑9662, completely prevented the effects of rosiglitazone. These results indicated that PDS exposure stimulated an inflammatory response in the RPMCs. The PPAR‑γ activator, rosiglitazone, appeared to relieve the injury by inhibiting inflammation, and regulating the expression of AQP‑1 and ZO‑1, however further investigations are required to elucidate the potential underlying mechanism.
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Yun-Fang
authors.initials: YF
authors.lastname: Zhang
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Su
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Jie-Lin
authors.initials: JL
authors.lastname: Wang
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Bao-Jun
authors.initials: BJ
authors.lastname: Hua
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Shen
authors.initials: S
authors.lastname: Yang
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Jun-Xia
authors.initials: JX
authors.lastname: Feng
authors.affiliation: Center of Kidney Disease, Huadu District People's Hospital, Southern Medical University, Guangzhou, Guangdong 510800, P.R. China.
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Li
mesh_terms: D000818:Animals; D051398:Aquaporin 1 / Q000032:analysis / Q000235:genetics; D015314:Dialysis Solutions / Q000009:adverse effects*; D004847:Epithelial Cells / Q000187:drug effects* / Q000473:pathology; D015850:Interleukin-6 / Q000032:analysis / Q000378:metabolism; D016209:Interleukin-8 / Q000032:analysis / Q000378:metabolism; D008297:Male; D047495:PPAR gamma / Q000819:agonists* / Q000032:analysis / Q000378:metabolism; D010530:Peritoneal Dialysis / Q000009:adverse effects*; D010537:Peritoneum / Q000166:cytology / Q000187:drug effects* / Q000473:pathology; D020011:Protective Agents / Q000627:therapeutic use*; D012333:RNA, Messenger / Q000235:genetics; D017207:Rats, Sprague-Dawley; D000077154:Rosiglitazone; D045162:Thiazolidinediones / Q000627:therapeutic use*; D062826:Zonula Occludens-1 Protein / Q000032:analysis / Q000235:genetics
chemical_list: C496022:Aqp1 protein, rat; D015314:Dialysis Solutions; D015850:Interleukin-6; D016209:Interleukin-8; D047495:PPAR gamma; D020011:Protective Agents; D012333:RNA, Messenger; D045162:Thiazolidinediones; C569044:Tjp1 protein, rat; D062826:Zonula Occludens-1 Protein; D000077154:Rosiglitazone; D051398:Aquaporin 1