目的探讨miR-127-3p调控Zeste white 10(ZW10)相互作用着丝粒蛋白1(Zwint-1)对口腔鳞状细胞癌(OSCC)细胞增殖、迁移及侵袭的影响。方法体外培养OSCC细胞系PE/CA-PJ15、CAL27,对其转染并分为空白对照组(NG组)、阴性转染组(NC组)、过表达m...目的探讨miR-127-3p调控Zeste white 10(ZW10)相互作用着丝粒蛋白1(Zwint-1)对口腔鳞状细胞癌(OSCC)细胞增殖、迁移及侵袭的影响。方法体外培养OSCC细胞系PE/CA-PJ15、CAL27,对其转染并分为空白对照组(NG组)、阴性转染组(NC组)、过表达miR-127-3p组(miR-127-3p-mimics组)。倒置荧光显微镜下观察转染效果;采用实时荧光定量PCR法检测miR-127-3p、Zwint-1 mRNA水平;MTT法检测各组细胞增殖情况;划痕实验检测PE/CA-PJ15、CAL27细胞迁移能力;Transwell实验检测PE/CA-PJ15、CAL27细胞侵袭能力;免疫印迹法检测人增殖细胞核抗原(Ki-67),凋亡相关蛋白Bax、Bcl-2,侵袭及迁移相关蛋白E-钙粘附蛋白(E-cadherin)、N-钙粘附蛋白(N-cadherin)、波形蛋白(Vimentin)及Zwint-1蛋白表达情况;应用TargetScan数据库预测miR-127-3p与Zwint-1靶向关系并用双荧光素酶报告基因实验验证。结果细胞转染成功;与NG组、NC组比较,miR-127-3p-mimics组PE/CA-PJ15、CAL27细胞miR-127-3p、增殖抑制率、E-cadherin、Bax蛋白表达显著升高(P<0.05),划痕治愈率、细胞侵袭数、Zwint-1 mRNA及其蛋白、Ki-67、N-cadherin、Vimentin、Bcl-2蛋白表达显著减少或降低(P<0.05)。TargetScan数据库预测显示Zwint-1是miR-127-3p的潜在靶基因,双荧光素酶报告基因实验证实二者存在靶向关系,且miR-127-3p可负向调控Zwint-1表达。结论上调miR-127-3p表达可靶向下调Zwint-1表达,并抑制OSCC细胞增殖、侵袭及迁移。展开更多
During the initiation, promotion, and progression of multi-step carcinogenesis, changes in specific host immuno- logical factors have been observed. Although immunology of oral cancer has long been focused on antigens...During the initiation, promotion, and progression of multi-step carcinogenesis, changes in specific host immuno- logical factors have been observed. Although immunology of oral cancer has long been focused on antigens and lymphocytes, the fact remains that the antigen presenting cells, like the Langerhans cells （LCs） of the epithelium are initiators and modulators of the immune response. LCs as sentinels of immune response, have been investigated in several orai mucosal diseases, including cancer. Inadequate presentation of tumor antigens by host dendritic cells is one potential mechanism that allows tumor progression, tn this review, the role of LCs in OSCC is discussed. Elucidation of the role of APCs, in particular LCs, may help to better understand the mechanisms underlying anti-tumour immune responses and, improve the effectiveness of anti-cancer immunity in tumour-bearing hosts. This section focuses on the roles LCs in the immunity of cancer and how cancer bypasses the dendritic cell-mediated immune responses, are discussed. Subsequently, the effects of tumor microenviornment on LC＇s and their therapeutic implications are elaborated.展开更多
文摘目的探讨miR-127-3p调控Zeste white 10(ZW10)相互作用着丝粒蛋白1(Zwint-1)对口腔鳞状细胞癌(OSCC)细胞增殖、迁移及侵袭的影响。方法体外培养OSCC细胞系PE/CA-PJ15、CAL27,对其转染并分为空白对照组(NG组)、阴性转染组(NC组)、过表达miR-127-3p组(miR-127-3p-mimics组)。倒置荧光显微镜下观察转染效果;采用实时荧光定量PCR法检测miR-127-3p、Zwint-1 mRNA水平;MTT法检测各组细胞增殖情况;划痕实验检测PE/CA-PJ15、CAL27细胞迁移能力;Transwell实验检测PE/CA-PJ15、CAL27细胞侵袭能力;免疫印迹法检测人增殖细胞核抗原(Ki-67),凋亡相关蛋白Bax、Bcl-2,侵袭及迁移相关蛋白E-钙粘附蛋白(E-cadherin)、N-钙粘附蛋白(N-cadherin)、波形蛋白(Vimentin)及Zwint-1蛋白表达情况;应用TargetScan数据库预测miR-127-3p与Zwint-1靶向关系并用双荧光素酶报告基因实验验证。结果细胞转染成功;与NG组、NC组比较,miR-127-3p-mimics组PE/CA-PJ15、CAL27细胞miR-127-3p、增殖抑制率、E-cadherin、Bax蛋白表达显著升高(P<0.05),划痕治愈率、细胞侵袭数、Zwint-1 mRNA及其蛋白、Ki-67、N-cadherin、Vimentin、Bcl-2蛋白表达显著减少或降低(P<0.05)。TargetScan数据库预测显示Zwint-1是miR-127-3p的潜在靶基因,双荧光素酶报告基因实验证实二者存在靶向关系,且miR-127-3p可负向调控Zwint-1表达。结论上调miR-127-3p表达可靶向下调Zwint-1表达,并抑制OSCC细胞增殖、侵袭及迁移。
文摘During the initiation, promotion, and progression of multi-step carcinogenesis, changes in specific host immuno- logical factors have been observed. Although immunology of oral cancer has long been focused on antigens and lymphocytes, the fact remains that the antigen presenting cells, like the Langerhans cells （LCs） of the epithelium are initiators and modulators of the immune response. LCs as sentinels of immune response, have been investigated in several orai mucosal diseases, including cancer. Inadequate presentation of tumor antigens by host dendritic cells is one potential mechanism that allows tumor progression, tn this review, the role of LCs in OSCC is discussed. Elucidation of the role of APCs, in particular LCs, may help to better understand the mechanisms underlying anti-tumour immune responses and, improve the effectiveness of anti-cancer immunity in tumour-bearing hosts. This section focuses on the roles LCs in the immunity of cancer and how cancer bypasses the dendritic cell-mediated immune responses, are discussed. Subsequently, the effects of tumor microenviornment on LC＇s and their therapeutic implications are elaborated.
