[摘 要] 目的：探讨颗粒酶M（GZMM）对肾透明细胞癌（ccRCC）细胞增殖、侵袭、迁移和血管生成的影响及相关分子机制。方法: 采用TCGA数据库和免疫组化分析GZMM在ccRCC组织的表达及其与临床病理特征的相关性。采用CCK-8、Transwell、划痕愈合及血管形成实验检测GZMM对ccRCC细胞增殖、侵袭、迁移和血管生成的影响，采用WB法检测GZMM对VEGF/ERK信号通路的影响。结果: TCGA数据库和免疫组化分析表明，ccRCC组织中GZMM的表达升高（P < 0.01），且与Fuhrman分级和淋巴结转移有关联（均P < 0.05）。GZMM高表达的患者预后不良（P < 0.05），且与FcerⅠ介导的MAPK激活有关联（P < 0.001）。在ccRCC细胞中，干扰GZMM降低ccRCC细胞的增殖、侵袭和迁移能力，且抑制ERK信号通路（均P < 0.05）；过表达GZMM促进ccRCC细胞的增殖、侵袭和迁移能力，且激活ERK信号通路（均P < 0.01）。在HUVEC中，分泌型GZMM促进HUVEC的增殖、迁移、小管和血管形成的能力，且激活VEGF/ERK信号通路（均P < 0.05）。此外，U0126抑制p-ERK、MMP2和MMP9的表达（均P < 0.05），但不影响VEGFA和VEGFR2的表达。结论：ccRCC组织中GZMM呈高表达，且与其Fuhrman分级和淋巴结转移有关联，GZMM通过激活VEGF/ERK信号通路促进ccRCC血管生成和侵袭。

[摘 要] 目的：探讨桥接整合因子1（BIN1）在上皮性卵巢癌（EOC）组织中的表达及其临床意义，以及BIN1对EOC细胞A2780增殖、迁移和侵袭的影响。方法：收集2017年7月至2018年1月河北医科大学第四医院手术切除的67例EOC患者的肿瘤组织及同期因其他妇科疾病手术切除的30例非肿瘤患者的卵巢组织（正常对照组）标本。用免疫组织化学染色法检测EOC组织和非肿瘤卵巢组织中BIN1蛋白的表达水平，χ2检验分析BIN1表达与患者临床病理特征之间的关联，Kaplan-Meier法分析BIN1表达与患者的无病生存期（DFS）和总生存期（OS）之间的关系。用qPCR和WB法检测EOC细胞SKOV3、A2780和人卵巢上皮细胞IOSE80中BIN1 mRNA和蛋白的表达水平。利用基因转染技术将BIN1质粒CMV-MCS-GFP-SV40-Neomycin-BIN1和空载体质粒CMV-MCS-GFP-SV40-Neomycin分别转染到A2780细胞以构建过表达BIN1细胞及其对照，用qPCR和WB法分别检测转染细胞中BIN1 mRNA和蛋白的表达水平，CCK-8、划痕愈合和Transwell实验分别检测过表达BIN1对A2780细胞增殖、迁移和侵袭的影响。结果：EOC组织中BIN1阳性表达率显著低于正常卵巢组织（P<0.01）。BIN1表达与EOC患者较晚的术后病理分期、较差的组织学分级、淋巴结转移及腹膜转移存在正向关联（均P<0.05）；BIN1低表达组患者的DFS和OS均短于BIN1高表达组患者（均P<0.05）。SKOV3和A2780细胞中BIN1 mRNA和蛋白的表达水平均显著低于IOSE80细胞（均P<0.01）；过表达BIN1显著抑制A2780细胞的增殖、迁移和侵袭（P<0.05或P<0.01）。结论：BIN1在EOC组织和细胞中呈低表达状态，与患者的不良预后有关；过表达BIN1可降低EOC细胞A2780的增殖、迁移和侵袭能力。

[Abstract] Objective: To study the effect and possible mechanism of TGF-β2 on the invasion of glioma stem cells (GSCs). Methods: Tumor tissues of 8 patients with glioblastoma multiforme, who underwent resection at Department of Neurosurgery of the FirstAffiliated Hospital of China Medical University duringApril 2016 toApril 2017, were collected. The primary culture of glioma cells were conducted with trypsin digestion. Partial primary glioma cells were seeded into serum-free DMEM/F12 culture medium containing EGF, bFGF and B27 to obtain suspension of tumor spheres. Immunoflurenscent staining and differentiation assay were used to detect whether the tumor spheres were GSCs. TGF-β2 secretion ability of GSCs was determined by ELISAassay.After transfection of TGF-β2 siRNA, the invasion ability of glioma stem cells was determined by Transwell assay. Western blotting was used to examine the effect of TGF-β2 on expression of matrix metalloproteinases (MMP) in glioma stem cells. Results: The suspended tumor spheres were proved to be GSCs by immunofluorescent staining and differentiation assay; the tumor spheres expressed the marker of GSCs（CD133）and had the ability to multi-differentiate (glia and neuronal cells). Compared with the primary glioma cells, Glioma stem cells exerted significantly improved TGF-β2 secretion ability ([74.13±3.63] vs [46.13±2.61] pg/ml, P<0.05); and TGF-β2 silencing significantly reduced the invasion ability of glioma stem cells ([105.71±8.69] vs [63.67±5.93], P<0.05) and inhibited MMP-2 and MMP-9 expressions. Conclusion: TGF-β2 can promote the invasiveness of glioma stem cells through MMP-2 and MMP-9 pathway.