SDF-1/CXCR4对卵巢上皮性癌细胞增殖和侵袭的影响Effects of chemokine SDF-1/CXCR4 on proliferation and invasion of ovarian carcinoma cell.
王晓翊;卢实;林晓琰;王泽华;
摘要(Abstract)：
目的:研究SDF-1/CXCR4在卵巢癌细胞生物学活性中的作用。方法:用RT-PCR方法检测卵巢癌细胞株SW626及Anglne中的SDF-1和CXCR4的表达。细胞经外源性SDF-1或者抗CXCR4单克隆抗体干预后,用MTT法检测细胞增殖,PI测细胞凋亡,Annexin-V/PI法检测细胞早期凋亡,Transwell小室检测细胞的迁移侵袭活性。结果:两株卵巢癌细胞株中,SW626细胞既表达SDF-1又表达CXCR4,Anglne细胞则两者均不表达。在SW626细胞中,SDF-1作用于无血清状态下培养的细胞(吸光度A值为0.911±0.01),与对照组(吸光度A值为0.506±0.01)相比,差异有统计学意义(P<0.01),而加入抗CXCR4单克隆抗体作用后(10μg/ml A值为0.725±0.01,20μg/ml A值为0.650±0.02),与SDF-1组相比,差异均有统计学意义(分别为P<0.05和P<0.01);抗CXCR4单克隆抗体作用于无血清状态下培养的细胞(10μg/ml A值为0.655±0.11和20μg/ml A值为0.520±0.04),与对照组(A值为0.724±0.03)相比,差异均有统计学意义(P<0.05)。加入外源性SDF-1后,SW626细胞在无血清状态下的早期凋亡数为15.6%,相对于对照组,差异有统计学意义(P<0.01)。抗CXCR4单克隆抗体可增加SW626细胞中的PI阳性细胞数(P<0.01)。并且,与对照组相比,SDF-1促进SW626细胞的迁移和侵袭能力增强(P<0.01),而此活性可被抗CXCR4单克隆抗体阻断。结论:SDF-1/CXCR4可能通过促进细胞增殖、迁移、侵袭及抑制其凋亡,使卵巢癌细胞获得进展。
关键词(KeyWords)： SDF-1;受体,CXCR4;卵巢肿瘤;炎症,趋化因子类
基金项目(Foundation): 湖北省科技攻关计划项目(No:GGS0202)
作者(Authors): 王晓翊;卢实;林晓琰;王泽华;
DOI: 10.13283/j.cnki.xdfckjz.2008.04.026
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