STI571对食管癌细胞株CE-48T和CE-81T的体外杀伤作用
背景与目的:酪氨酸激酶是细胞增殖和分化的介导者,有研究显示,其在食管癌的发生发展中起重要的促进作用。STI571为血小板衍生的生长因子受体β(platelet-derived growth factor receptorβ,PDGFR—β)的酪氨酸激酶抑制剂;食管癌组织中可高表达PDGFR-β。本实验的目的就是检测靶向治疗新药STI571对食管癌细胞株的体外杀伤作用。方法:使用Western blot分析检测两种细胞株CE-48T和CE-81T中PDGFR-α和PDGFR-β的表达.然后应用MTT法测出STI571对两种细胞的IC50值,以Annexin V/PI染色检测细胞凋亡情况,再用We...
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Published in | Ai zheng Vol. 25; no. 4; pp. 456 - 460 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
中山大学肿瘤防治中心胸科,广东,广州,510060
2006
华南肿瘤学国家重点实验室,广东,广州,510060 |
Subjects | |
Online Access | Get full text |
ISSN | 1000-467X |
DOI | 10.3321/j.issn:1000-467X.2006.04.014 |
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Abstract | 背景与目的:酪氨酸激酶是细胞增殖和分化的介导者,有研究显示,其在食管癌的发生发展中起重要的促进作用。STI571为血小板衍生的生长因子受体β(platelet-derived growth factor receptorβ,PDGFR—β)的酪氨酸激酶抑制剂;食管癌组织中可高表达PDGFR-β。本实验的目的就是检测靶向治疗新药STI571对食管癌细胞株的体外杀伤作用。方法:使用Western blot分析检测两种细胞株CE-48T和CE-81T中PDGFR-α和PDGFR-β的表达.然后应用MTT法测出STI571对两种细胞的IC50值,以Annexin V/PI染色检测细胞凋亡情况,再用Western blot检测STI571处理前后p-PDGFR—β的表达。结果:CE-48T细胞表达PDGFR—β而不表达PDGFR-α;而CE-81T细胞既不表达PDGFR-β,也不表达PDGFR-α。STl571对PDGFR-β阳性的CE-48T细胞具有很强的抑制作用,其平均IC50值为(8.32±1.50)μmol/L,而对PDGFR-β阴性的CE-81T细胞的抑制作用较弱,其平均IC50值为(41.02±7.64)μmol/L。Annexin V/PI染色检测表明以STI571以10μmol/L作用CE-48T细胞12h,细胞凋亡率为(52.43±5.30)%,增加作用时间和药物浓度不能增加凋亡率。使用STl571处理cE-48T细胞后,p-PDGFR-β的表达受到抑制,而对CE-81T细胞没有影响。结论:STI571可诱导PDGFR-β表达阳性食管癌细胞凋亡,在体外有明显的杀伤作用,p-PDGFR-β可能是STI571的主要作用靶点。 |
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AbstractList | R735.1; 背景与目的:酪氨酸激酶是细胞增殖和分化的介导者,有研究显示,其在食管癌的发生发展中起重要的促进作用.STI571为血小板衍生的生长因子受体β(platelet-derived growth factor receptor β,PDGFR-β)的酪氨酸激酶抑制剂;食管癌组织中可高表达PDGFR-β.本实验的目的就是检测靶向治疗新药STI571对食管癌细胞株的体外杀伤作用.方法:使用Western blot分析检测两种细胞株CE-48T和CE-81T中PDGFR-α和PDGFR-β的表达,然后应用MTT法测出STI571对两种细胞的IC50值,以Annexin V/PI染色检测细胞凋亡情况,再用Western blot检测STI571处理前后p-PDGFR-β的表达.结果:CE-48T细胞表达PDGFR-β而不表达PDGFR-α;而CE-81T细胞既不表达PDGFR-β,也不表达PDGFR-α.STI571对PDGFR-β阳性的CE-48T细胞具有很强的抑制作用,其平均IC50值为(8.32±1.50)μmol/L,而对PDGFR-β阴性的CE-81T细胞的抑制作用较弱,其平均IC50值为(41.02±7.64)μmol/L.Annexin V/PI染色检测表明以STI571以10 μmol/L作用CE-48T细胞12 h,细胞凋亡率为(52.43±5.30)%,增加作用时间和药物浓度不能增加凋亡率.使用STI571处理CE-48T细胞后,p-PDGFR-β的表达受到抑制,而对CE-81T细胞没有影响.结论:STI571可诱导PDGFR-β表达阳性食管癌细胞凋亡,在体外有明显的杀伤作用,p-PDGFR-β可能是STI571的主要作用靶点. 背景与目的:酪氨酸激酶是细胞增殖和分化的介导者,有研究显示,其在食管癌的发生发展中起重要的促进作用。STI571为血小板衍生的生长因子受体β(platelet-derived growth factor receptorβ,PDGFR—β)的酪氨酸激酶抑制剂;食管癌组织中可高表达PDGFR-β。本实验的目的就是检测靶向治疗新药STI571对食管癌细胞株的体外杀伤作用。方法:使用Western blot分析检测两种细胞株CE-48T和CE-81T中PDGFR-α和PDGFR-β的表达.然后应用MTT法测出STI571对两种细胞的IC50值,以Annexin V/PI染色检测细胞凋亡情况,再用Western blot检测STI571处理前后p-PDGFR—β的表达。结果:CE-48T细胞表达PDGFR—β而不表达PDGFR-α;而CE-81T细胞既不表达PDGFR-β,也不表达PDGFR-α。STl571对PDGFR-β阳性的CE-48T细胞具有很强的抑制作用,其平均IC50值为(8.32±1.50)μmol/L,而对PDGFR-β阴性的CE-81T细胞的抑制作用较弱,其平均IC50值为(41.02±7.64)μmol/L。Annexin V/PI染色检测表明以STI571以10μmol/L作用CE-48T细胞12h,细胞凋亡率为(52.43±5.30)%,增加作用时间和药物浓度不能增加凋亡率。使用STl571处理cE-48T细胞后,p-PDGFR-β的表达受到抑制,而对CE-81T细胞没有影响。结论:STI571可诱导PDGFR-β表达阳性食管癌细胞凋亡,在体外有明显的杀伤作用,p-PDGFR-β可能是STI571的主要作用靶点。 |
Author | 张蓬原 李宝江 苏晓东 温浙盛 赵进明 张兰军 龙浩 戎铁华 |
AuthorAffiliation | 华南肿瘤学国家重点实验室,广东广州510060 中山大学肿瘤防治中心胸科,广东广州510060 |
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Author_FL | LI Bao-Jiang WEN Zhe-Sheng LONG Hao RONG Tie-Hua ZHANG Peng-Yuan ZHANG Lan-Jun SU Xiao-Dong ZHAO Jin-Ming |
Author_FL_xml | – sequence: 1 fullname: ZHANG Peng-Yuan – sequence: 2 fullname: LI Bao-Jiang – sequence: 3 fullname: SU Xiao-Dong – sequence: 4 fullname: WEN Zhe-Sheng – sequence: 5 fullname: ZHAO Jin-Ming – sequence: 6 fullname: ZHANG Lan-Jun – sequence: 7 fullname: LONG Hao – sequence: 8 fullname: RONG Tie-Hua |
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DocumentTitleAlternate | In Vitro Killing Effects of STI571 on Esophageal Carcinoma Cell Lines CE-48T and CE-81T |
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Keywords | ET-48T细胞株 细胞凋亡 Western blot PDGFR-β STI571 CE-81T细胞株 酪氨酸激酶抑制剂 食管肿瘤 Annexin V |
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Notes | Esophageal neoplasm Western blot PDGFR-β Esophageal neoplasm; Tyrosine kinase inhibitor; STI571;PDGFR-β; CE-48T cell line; CE-81T cell line; Cell apoptosis; Western blot;Annexin V STI571 Tyrosine kinase inhibitor R735.1 Cell apoptosis CE-48T cell line 44-1195/R Annexin V CE-81T cell line |
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Publisher | 中山大学肿瘤防治中心胸科,广东,广州,510060 华南肿瘤学国家重点实验室,广东,广州,510060 |
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Snippet | 背景与目的:酪氨酸激酶是细胞增殖和分化的介导者,有研究显示,其在食管癌的发生发展中起重要的促进作用。STI571为血小板衍生的生长因子受体β(platelet-derived growth... R735.1; 背景与目的:酪氨酸激酶是细胞增殖和分化的介导者,有研究显示,其在食管癌的发生发展中起重要的促进作用.STI571为血小板衍生的生长因子受体β(platelet-derived... |
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SubjectTerms | Annexin blot CE-81T细胞株 ET-48T细胞株 PDGFR—β STI571 V Western 细胞凋亡 酪氨酸激酶抑制剂 食管肿瘤 |
Title | STI571对食管癌细胞株CE-48T和CE-81T的体外杀伤作用 |
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