Adipose-Derived Stem Cells Suppress Inflammation Induced by IL-1beta through Down-Regulation of P2X7R Mediated by miR-373 in Chondrocytes of Osteoarthritis

Rilong Jin; Miaoda Shen; Liedao Yu; Xuanwei Wang; Xiangjin Lin

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자료유형: 학술저널

저자정보: Rilong Jin (College of Medical Zhejiang University) Miaoda Shen (College of Medical Zhejiang University) Liedao Yu (College of Medical Zhejiang University) Xuanwei Wang (College of Medical Zhejiang University) Xiangjin Lin (College of Medical Zhejiang University)

저널정보: 한국분자세포생물학회 Molecules and Cells Molecules and Cells 제40권 제3호

발행연도: 2017.3

수록면: 222 - 229 (8page)

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Adipose-derived stem cells (ADSCs) were previously considered to have an anti-inflammatory effect, and Interleukin-1? (IL-1?) was found to be a pro-inflammatory factor in chondrocytes, but the mechanism underlying ADSCs and IL-1? is unclear. In this study, we investigate whether P2X7 receptor (P2X7R) signalling, regulated by microRNA 373 (miR-373), was involved in the ADSCs and IL-1? mediated inflammation in osteoarthritis (OA). Chondrocytes were collected from 20 OA patients and 20 control participants, and ADSCs were collected from patients who had undergone abdominal surgery. The typical surface molecules of ASDCs were detected by flow cytometry. The level of nitric oxide (NO) was determined by Griess reagent. Concentrations of prostaglandin E2 (PGE2), interleukin 6 (IL-6), matrix metallopeptidase 3 (MMP-3) were detected by enzyme-linked immunosorbent assay (ELISA). The expressions of IL-6, MMP-3, miR-373 and P2X7R were determined by real-time polymerase chain reaction (PCR), and Western blot was used to detect the protein expression of P2X7R. The typical potential characters of ADSCs were veri-fied. In chondrocytes or OA tissues, the miR-373 expression level was decreased, but the P2X7R expression was increased. IL-1? stimulation increased the level of inflammatory factors in OA chondrocytes, and ADSCs co-cultured with IL-1?-stimulated chondrocytes decreased the inflammation. OA chondrocytes transfected with the miR-373 inhibitor increased the inflammation level. The miR-373 mimic suppressed the inflammation by targeting P2X7R and regulated its expression, while its effect was reversed by overexpression of P2X7R. IL-1? induced inflammation in OA chon-drocytes, while ADSCs seemed to inhibit the expression of P2X7R that was regulated by miR-373 and involved in the anti-inflammatory process in OA.

#adipose-derived stem cells #chondrocytes #miR-373 #osteoarthritis #P2X7R

참고문헌 (29)

참고문헌 신청

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