血浆miR-451水平与子宫内膜异位症的关系
2016-08-12石瑾秋卢健翔李宝艳
石瑾秋,卢健翔,李宝艳
·论著·
血浆miR-451水平与子宫内膜异位症的关系
石瑾秋,卢健翔,李宝艳
目的:探讨血浆微小RNA451(miR-451)与子宫内膜异位症(EMs)的关系,并观察miR-451对体外培养的子宫内膜基质细胞的增殖和迁移的作用。方法:选取2014年1月—2015年5月于深圳市罗湖区人民医院就诊的EMs患者(EMs组)54例,正常对照组59例,采血并提取血浆总RNA。采用实时荧光定量聚合酶链反应(real-time qPCR)检测血浆miR-451的表达强度。通过CCK-8实验检测miR-451对异位子宫内膜基质细胞增殖的调控作用;采用损伤愈合实验探讨过表达miR-451后异位子宫内膜基质细胞的迁移变化。结果:EMs患者血浆miR-451表达水平低于对照组[(0.53±0.14)vs.(1.00±0.20),t=14.50,P<0.01];过表达miR-451后EMs基质细胞的相对迁移活性下降[(1.00±0.12)vs.(0.74±0.02),t=4.73,P=0.001]。结论:EMs患者血浆miR-451水平减低;miR-451可能通过抑制异位内膜基质细胞增殖和迁移发挥作用。
子宫内膜异位症;微RNAs;子宫内膜;聚合酶链反应;miR-451
【Abstract】Objective:To analyze the level of plasmamiR-451 in patientswith endometriosis(EMs),and to investigate the effect of miR-451 on the proliferation and migration of the stromal cells cultured in vitro. M ethods:We recruited 54 cases of EMs and 59 healthy volunteers from January 2014 to May 2015 at People′s Hospital of Luohu District.Total RNA from plasma were extracted,and the expression of plasma miR-451 was analyzed with real-time qPCR.The proliferation viability of stromal cells was detected by CCK-8 assay,and migration by the wound-healing assay.Results:The level of plasma miR-451 in EMs patients was significantly lower than that in healthy volunteers[(0.53±0.14)vs.(1.00±0.20),t=14.50,P<0.01].Overexpression ofmiR-451 in the in vitro cultured stromal cells significantly inhibited the proliferation and migration of stromal cells[(1.00± 0.12)vs.(0.74±0.02),t=4.73,P=0.001].Conclusions:The level of plasmamiR-451 is lowered in patients with EMs.miR-451 may participate in the pathophysiologicalmechanism of EMs by the inhibition of proliferation and migration of ectopic stromal cells.
【Keywords】Endometriosis;MicroRNAs;Endometrium;Polymerase chain reaction;miR-451 (JIntReprod Health/Fam Plan,2016,35:282-284)
子宫内膜异位症(endometriosis,EMs)是一种常见的妇科疾病。该病是一种有侵袭行为的良性疾病,严重影响患者的生活质量,特别是对于育龄期妇女,该病可导致女性不孕症,给患者造成严重的心理负担[1-3]。然而,目前EMs尚缺少令人满意的治疗方法。因此,研究并发现新的治疗靶点对EMs的个体化治疗有重要意义。
微小RNA(microRNA,miRNA)是近年来研究较多的生物活性分子。越来越多的研究表明miRNA与EMs的发生发展密切相关[4-5]。miRNA可通过靶向作用于mRNA来调控相应蛋白的表达,其主要在细胞内发挥作用,也可透过细胞膜分泌到血浆中。因此,检测血浆miRNA的表达即可反映细胞内调控状态的变化。miR-451是一种EMs相关miRNA,其在多种疾病中表达发生显著变化,如恶性肿瘤、炎症等[6-7]。……
