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MicroRNA-132转染对脂多糖诱导的肺泡巨噬细胞炎症反应的作用 被引量:5

Effect of microRNA-132 transfection on lipopolysaccharide-induced inflammation in rat alveolar macrophages
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摘要 目的:探讨转染微小RNA-132(miR-132)对肺泡巨噬细胞炎症反应的作用。方法:将体外去致热源培养的大鼠肺泡巨噬细胞株NR8383分为空白对照组、阴性对照组和转染组,分别采用miR-132增敏剂、错义链和PBS作用。转染24 h后,CCK-8法检测细胞増殖;实时荧光定量PCR检测细胞中miR-132的表达;用脂多糖(LPS)作用细胞后,凝胶电泳迁移率实验(EMSA)检测细胞中NF-κB活性;Western blotting法检测细胞中肿瘤坏死因子α(TNF-α)和白细胞介素6(IL-6)的表达。结果:与空白对照组和阴性对照组相比较,转染组细胞中miR-132的表达明显升高;转染组细胞増殖被明显抑制,与空白对照组相比较,差异有统计学意义(P<0.05);LPS作用后,转染组NF-κB、TNF-α和IL-6表达量显著下降,与空白对照组和阴性对照组相比较,差异均有统计学意义(P<0.05)。结论:转染miR-132可抑制NR8383细胞増殖,并抑制LPS诱导的NR8383细胞的炎症反应。 AIM: To investigate the effect of microRNA-132 (miR-132) transfection on the lipopolysaccharide (LPS)-induced inflammation in rat alveolar macrophages. METHODS: The rat alveolar macrophage NR8383 cultured with- out pyrogen in vitro were divided into blank control group, negative control group and transfected group. The cells in the 3 groups were transfected with phosphate buffer solution (PBS), Lipofectamine 2000 and synthesized miR-132 mimic respec- tively. The cell proliferation was detected by Ceil Counting Kit-8 ( CCK-8 ) assay. Real-time PCR was used to detect the ex- pression of miR-132 in the cells. After NR8383 cells were stimulated with LIPS for 6 h, the NF-KB DNA-binding activity was measured by electrophoretic mobility shift assay (EMSA). The expression of tumor necrosis factor-or (TNF-ct) and interleu- kin-6 (IL-6) in NR8383 cells was assayed by Western blotting. RESULTS: After transfection, the expression of miR-132 was significantly higher than that in blank control group and negative control group. The growth of NR8383 cells in transfect- ed group was significantly inhibited compared with blank control group and negative control group (P 〈 0.05 ). After the cells were stimulated with LPS, the productions of NF-KB, TNF-ot and IL-6 in transfected NR8383 cells were decreased com- pared with blank control group and negative control group ( P 〈 0. 05 ). CONCLUSION: Transfection of alveolar macropha- ges with miR-132 significantly suppresses the cell growth, and inhibits inflammatory responses induced by LPS.
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2014年第12期2190-2194,共5页 Chinese Journal of Pathophysiology
基金 浙江省卫生厅资助项目(No.2012A122)
关键词 MicroRNA-132 肺泡巨噬细胞 炎症反应 MicroRNA-132 Alveolar macrophages Inflammatory response
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  • 1Jennifer Raisch,Arlette Darfeuille-Michaud,Hang Thi Thu Nguyen.Role of microRNAs in the immune system,inflammation and cancer[J].World Journal of Gastroenterology,2013,19(20):2985-2996. 被引量:18
  • 2郑绪阳,谢强敏,杜晓刚,章辉,陈季强,黄先玫,杨一华.吡拉米司特在大鼠急性肺损伤模型中降低PDE4活性与TNF-α/IL-10平衡有关[J].中国药理学通报,2006,22(12):1499-1504. 被引量:14
  • 3熊霞辉,陈梅红.MicroRNA参与的调控网络[J].医学分子生物学杂志,2007,4(4):367-370. 被引量:4
  • 4Zhou H,Guo J,Lou Y,et al.Detection of circulating tumor cells in peripheral blood from patients with gastric cancer using microRNA as a marker[J].J Mol Med,2010,88(7):709-717.
  • 5Lee RC,Feinbaum RL,Ambros V.The C.elegans heterochronic gene lin-4 encodes small RNAs with antisense complementarily to lin-14[J].Cell,1993,75 (5):843-854.
  • 6Guo JM,Miao Y,Xiao BX,et al.Differential expression of microRNA species in human gastric cancer versus non-tumorous tissues[J].J Gastroenterol Hepatol,2009,24 (4):652-657.
  • 7Miao Y,Xiao B,Jiang Z,et al.Growth inhibition and cell-cycle arrest of human gastric cancer cells by Lycium barbarum polysaccharide[J].Med Oncol,2010,27(3):785-790.
  • 8Petrocca F,Visone R,Onelli MR,et al.E2F1-regulated microRNAs impair TGF beta-dependent cell-cycle arrest and apoptosis in gastric cancer[J].Cancer Cell,2008,13(3):272-286.
  • 9Xiao B,Guo J,Miao Y,et al.Detection of miR-106a in gastric carcinoma and its clinical significance[J].Clin Chim Acta,2009,400(1-2):97-102.
  • 10Borgne A,Meijer L.Sequential dephosphorylation of p34cdc2 on Thr-14 and Tyr-15 at the prophase/metaphase transition[J].J Biol Chem,1996,271(44):27847-27854.

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