目的:研究长链非编码RNA(lncRNA) RP1-90L14.1对前列腺癌LNCaP细胞增殖、迁移、侵袭的作用以及对GRIN2A、BACE2基因表达的影响。方法:采用RT-PCR检测前列腺癌LNCaP、LNCaP-AI细胞中RP1-90L14.1的表达水平;在LNCaP细胞中瞬时转染RP1-90L1...目的:研究长链非编码RNA(lncRNA) RP1-90L14.1对前列腺癌LNCaP细胞增殖、迁移、侵袭的作用以及对GRIN2A、BACE2基因表达的影响。方法:采用RT-PCR检测前列腺癌LNCaP、LNCaP-AI细胞中RP1-90L14.1的表达水平;在LNCaP细胞中瞬时转染RP1-90L14.1过表达质粒和载体质粒,即转染RP1-90L14.1实验组(LNCaP-RP1-90L14.1组)和转染阴性对照组(LNCaP-NC组);采用普通培养液和活性炭吸附无酚红培养液培养两组细胞;CCK-8法、Transwell法检测两组细胞增殖、迁移、侵袭能力;RT-PCR和Western印迹检测两组细胞中N-甲基-D-天氡氨酸离子型谷氨酸受体2A(GRIN2A)、β位点淀粉样前体蛋白裂解酶2 (BACE2) mRNA和蛋白表达含量变化。结果:RP1-90L14.1在LNCaP-AI中的表达量显著高于LNCaP细胞(8.49±0.43 vs 2.53±0.95,P<0.05)。转染RP1-90L14.1后,LNCaP-RP1-90L14.1组RP1-90L14.1表达量显著高于LNCaP-NC组(0.71±0.22 vs 0.02±0.01,P<0.05);在普通培养液和活性炭吸附无酚红培养液中,培养72 h时,LNCaP-RP1-90L14.1组细胞活性分别高出LNCaP-NC组51.95%(1.22±0.08 vs 0.08±0.05,P<0.05)和50.69%(0.79±0.02 vs 0.53±0.05,P<0.05);培养96 h时,LNCaP-RP1-90L14.1组分别高出LNCaP-NC组51.72%(1.72±0.07 vs 1.13±0.05,P<0.05)和60.23%(1.18±0.05 vs 0.73±0.08,P<0.05)。转染RP1-90L14.1后,在普通培养液和活性炭吸附无酚红培养液中,细胞迁移能力LNCaP-RP1-90L14.1组均显著高于LNCaP-NC组[(682.0±42.7)个vs(422.0±37.1)个,(419.0±42.9)个vs(251.0±25.9)个,P<0.05];细胞侵袭能力LNCaP-RP1-90L14.1组也均显著高于LNCaP-NC组[(507.0±22.2)个vs(274.0±19.6)个,(352.0±14.1)个vs(216.0±14.3)个,P<0.05]。LNCaP-RP1-90L14.1组与LNCaP-NC组相比,GRIN2A mRNA和蛋白表达量(5.13±0.89、2.09±0.54,5.88±0.29、2.03±0.22),BACE2 mRNA和蛋白表达量(5.82±0.50、2.53±0.30,4.89±0.19、3.37±0.13)均有统计学差异(P<0.05)。结论:lncRNA RP1-90L14.1可能在调控前列腺癌细胞的增殖、迁移及侵袭行为中起重要作用;RP1-90L14.1能促进GRIN2A、BACE2的表达;RP1-90L14.1与GRIN2A、BACE2可能存在内源性竞争关系。展开更多
Objective:To investigate the expression of HSP90 and HIF-1αin human colorectal cancer tissue,the influence of HSP90 and HIF-1αon human colorectal cancer biological behavior and their related factors.Methods:The expr...Objective:To investigate the expression of HSP90 and HIF-1αin human colorectal cancer tissue,the influence of HSP90 and HIF-1αon human colorectal cancer biological behavior and their related factors.Methods:The expression of HSP90 and HIF-1 a protein in human colorectal cancer as well as normal tissue were detected by imnmnohistochemical method.Results:The positive expression rates of HSP90 and HIF-1αprotein in normal human colorectal tissue as well as colorectal cancer tissue were 30%vs.63.0%,15.0%vs.71.7%,respectively.There were significant difference(P=0.035 and P=0.005 respectively).The expression of HSP90 was significantly correlated with the differentiation,Dukes stages and lymph node metastasis(P<0.05),while the expression of HIF-1 a was significantly correlated with the Dukes stages and lymph node metastasis(P<0.05).Association analysis showed that the expression of HSF90 protein was significantly correlated with that of HIF-1αprotein(P<0.01).Conclusions:The expression of HSP90 and HIF—1αprotein may be related to the development,metastasis and invasion of human colorectal cancer,and their synergistic effects may participate in the development of the colorectal carcinoma.展开更多
文摘目的:研究长链非编码RNA(lncRNA) RP1-90L14.1对前列腺癌LNCaP细胞增殖、迁移、侵袭的作用以及对GRIN2A、BACE2基因表达的影响。方法:采用RT-PCR检测前列腺癌LNCaP、LNCaP-AI细胞中RP1-90L14.1的表达水平;在LNCaP细胞中瞬时转染RP1-90L14.1过表达质粒和载体质粒,即转染RP1-90L14.1实验组(LNCaP-RP1-90L14.1组)和转染阴性对照组(LNCaP-NC组);采用普通培养液和活性炭吸附无酚红培养液培养两组细胞;CCK-8法、Transwell法检测两组细胞增殖、迁移、侵袭能力;RT-PCR和Western印迹检测两组细胞中N-甲基-D-天氡氨酸离子型谷氨酸受体2A(GRIN2A)、β位点淀粉样前体蛋白裂解酶2 (BACE2) mRNA和蛋白表达含量变化。结果:RP1-90L14.1在LNCaP-AI中的表达量显著高于LNCaP细胞(8.49±0.43 vs 2.53±0.95,P<0.05)。转染RP1-90L14.1后,LNCaP-RP1-90L14.1组RP1-90L14.1表达量显著高于LNCaP-NC组(0.71±0.22 vs 0.02±0.01,P<0.05);在普通培养液和活性炭吸附无酚红培养液中,培养72 h时,LNCaP-RP1-90L14.1组细胞活性分别高出LNCaP-NC组51.95%(1.22±0.08 vs 0.08±0.05,P<0.05)和50.69%(0.79±0.02 vs 0.53±0.05,P<0.05);培养96 h时,LNCaP-RP1-90L14.1组分别高出LNCaP-NC组51.72%(1.72±0.07 vs 1.13±0.05,P<0.05)和60.23%(1.18±0.05 vs 0.73±0.08,P<0.05)。转染RP1-90L14.1后,在普通培养液和活性炭吸附无酚红培养液中,细胞迁移能力LNCaP-RP1-90L14.1组均显著高于LNCaP-NC组[(682.0±42.7)个vs(422.0±37.1)个,(419.0±42.9)个vs(251.0±25.9)个,P<0.05];细胞侵袭能力LNCaP-RP1-90L14.1组也均显著高于LNCaP-NC组[(507.0±22.2)个vs(274.0±19.6)个,(352.0±14.1)个vs(216.0±14.3)个,P<0.05]。LNCaP-RP1-90L14.1组与LNCaP-NC组相比,GRIN2A mRNA和蛋白表达量(5.13±0.89、2.09±0.54,5.88±0.29、2.03±0.22),BACE2 mRNA和蛋白表达量(5.82±0.50、2.53±0.30,4.89±0.19、3.37±0.13)均有统计学差异(P<0.05)。结论:lncRNA RP1-90L14.1可能在调控前列腺癌细胞的增殖、迁移及侵袭行为中起重要作用;RP1-90L14.1能促进GRIN2A、BACE2的表达;RP1-90L14.1与GRIN2A、BACE2可能存在内源性竞争关系。
基金supported by Shaanxi province health department key funds:sx201227273
文摘Objective:To investigate the expression of HSP90 and HIF-1αin human colorectal cancer tissue,the influence of HSP90 and HIF-1αon human colorectal cancer biological behavior and their related factors.Methods:The expression of HSP90 and HIF-1 a protein in human colorectal cancer as well as normal tissue were detected by imnmnohistochemical method.Results:The positive expression rates of HSP90 and HIF-1αprotein in normal human colorectal tissue as well as colorectal cancer tissue were 30%vs.63.0%,15.0%vs.71.7%,respectively.There were significant difference(P=0.035 and P=0.005 respectively).The expression of HSP90 was significantly correlated with the differentiation,Dukes stages and lymph node metastasis(P<0.05),while the expression of HIF-1 a was significantly correlated with the Dukes stages and lymph node metastasis(P<0.05).Association analysis showed that the expression of HSF90 protein was significantly correlated with that of HIF-1αprotein(P<0.01).Conclusions:The expression of HSP90 and HIF—1αprotein may be related to the development,metastasis and invasion of human colorectal cancer,and their synergistic effects may participate in the development of the colorectal carcinoma.
