目的探讨LASP-1在人舌鳞状细胞癌细胞中的表达,并应用sh RNA沉默人舌鳞状细胞癌细胞SCC9中LASP-1基因,研究LASP-1对SCC9细胞增殖和迁移能力的影响。方法构建携带绿色荧光蛋白的LASP-1 sh RNA质粒及阴性对照组质粒LASP-1 sh NC,通过脂质...目的探讨LASP-1在人舌鳞状细胞癌细胞中的表达,并应用sh RNA沉默人舌鳞状细胞癌细胞SCC9中LASP-1基因,研究LASP-1对SCC9细胞增殖和迁移能力的影响。方法构建携带绿色荧光蛋白的LASP-1 sh RNA质粒及阴性对照组质粒LASP-1 sh NC,通过脂质体转染SCC9细胞,采用MTT法检测细胞增殖;RT-PCR法检测细胞LASP-1 m RNA表达;Western blot检测细胞LASP-1蛋白的表达;运用Transwell小室实验检测细胞迁移能力。结果 LASP-1在舌鳞状细胞癌细胞中高表达;实验组和阴性对照组分别转染相应质粒48 h后细胞均有绿色荧光蛋白表达,表明质粒转染成功;实验组SCC9细胞LASP-1 m RNA和LASP-1蛋白表达明显降低;与空白对照组相比,实验组细胞培养48 h和72 h细胞存活率分别降低了(51.23±1.47)%和(50.07±2.11)%;Transwell实验结果显示,LASP-1基因被沉默后细胞迁移能力明显下降,比对照组降低约43%。结论 LASP-1在舌鳞状细胞癌细胞中高表达,下调LASP-1基因表达可抑制SCC9细胞的增殖和迁移。展开更多
LASP-1(LIM and SH3protein1)最初是由乳腺癌转移性淋巴结cDNA文库中筛选克隆得到,含有LIM和SH3两个结构域.LASP-1在乳腺癌和卵巢癌等多种恶性肿瘤中高表达,并和肿瘤发生、侵袭和转移密切相关.近年来研究还证实LASP-1是抑癌基因p53的靶...LASP-1(LIM and SH3protein1)最初是由乳腺癌转移性淋巴结cDNA文库中筛选克隆得到,含有LIM和SH3两个结构域.LASP-1在乳腺癌和卵巢癌等多种恶性肿瘤中高表达,并和肿瘤发生、侵袭和转移密切相关.近年来研究还证实LASP-1是抑癌基因p53的靶蛋白.目前的研究均表明LASP-1是一种新的肿瘤转移蛋白.展开更多
Recent studies suggested that LIM and SH3 protein 1(LASP-1)is a promising therapeutic target for renal cell cancer(RCC).This study aimed to explore the role of LASP-1 in RCC.For this purpose,LASP-1 expression in RCC t...Recent studies suggested that LIM and SH3 protein 1(LASP-1)is a promising therapeutic target for renal cell cancer(RCC).This study aimed to explore the role of LASP-1 in RCC.For this purpose,LASP-1 expression in RCC tissues was analyzed by immunohistochemistry and Western blot analysis.Cell proliferation,migration,invasion,and gene expression were detected by CCK-8 assay,Transwell assay,and Western blot analysis.The results showed that LASP-1 was highly expressed in RCC,and its expression level,t was positively correlated with lymph node metastasis and tumor,nodes,and metastases(TNM)stage.The knockdown of LASP-1 expression significantly inhibited the proliferation of RCC cells,increased the apoptosis rate,and inhibited RCC cell invasion and migration by inhibiting epithelial–mesenchymal transition.We conclude that LASP-1 promotes RCC progression and metastasis and is a promising therapeutic target for RCC.展开更多
文摘目的探讨LASP-1在人舌鳞状细胞癌细胞中的表达,并应用sh RNA沉默人舌鳞状细胞癌细胞SCC9中LASP-1基因,研究LASP-1对SCC9细胞增殖和迁移能力的影响。方法构建携带绿色荧光蛋白的LASP-1 sh RNA质粒及阴性对照组质粒LASP-1 sh NC,通过脂质体转染SCC9细胞,采用MTT法检测细胞增殖;RT-PCR法检测细胞LASP-1 m RNA表达;Western blot检测细胞LASP-1蛋白的表达;运用Transwell小室实验检测细胞迁移能力。结果 LASP-1在舌鳞状细胞癌细胞中高表达;实验组和阴性对照组分别转染相应质粒48 h后细胞均有绿色荧光蛋白表达,表明质粒转染成功;实验组SCC9细胞LASP-1 m RNA和LASP-1蛋白表达明显降低;与空白对照组相比,实验组细胞培养48 h和72 h细胞存活率分别降低了(51.23±1.47)%和(50.07±2.11)%;Transwell实验结果显示,LASP-1基因被沉默后细胞迁移能力明显下降,比对照组降低约43%。结论 LASP-1在舌鳞状细胞癌细胞中高表达,下调LASP-1基因表达可抑制SCC9细胞的增殖和迁移。
文摘LASP-1(LIM and SH3protein1)最初是由乳腺癌转移性淋巴结cDNA文库中筛选克隆得到,含有LIM和SH3两个结构域.LASP-1在乳腺癌和卵巢癌等多种恶性肿瘤中高表达,并和肿瘤发生、侵袭和转移密切相关.近年来研究还证实LASP-1是抑癌基因p53的靶蛋白.目前的研究均表明LASP-1是一种新的肿瘤转移蛋白.
基金Xuzhou Science and Technology Bureau Project(KC16SH012).
文摘Recent studies suggested that LIM and SH3 protein 1(LASP-1)is a promising therapeutic target for renal cell cancer(RCC).This study aimed to explore the role of LASP-1 in RCC.For this purpose,LASP-1 expression in RCC tissues was analyzed by immunohistochemistry and Western blot analysis.Cell proliferation,migration,invasion,and gene expression were detected by CCK-8 assay,Transwell assay,and Western blot analysis.The results showed that LASP-1 was highly expressed in RCC,and its expression level,t was positively correlated with lymph node metastasis and tumor,nodes,and metastases(TNM)stage.The knockdown of LASP-1 expression significantly inhibited the proliferation of RCC cells,increased the apoptosis rate,and inhibited RCC cell invasion and migration by inhibiting epithelial–mesenchymal transition.We conclude that LASP-1 promotes RCC progression and metastasis and is a promising therapeutic target for RCC.
