以往研究[1-6]显示,在乳癌细胞的生长、浸润、转移过程中,乳癌特异基因1(breast cancer specific gene-1,BCSG1)、基质金属蛋白酶(matrix metalloproteinases,MMPs)、基质金属蛋白酶组织抑制剂(tissue inhibitor of metalloprotein...以往研究[1-6]显示,在乳癌细胞的生长、浸润、转移过程中,乳癌特异基因1(breast cancer specific gene-1,BCSG1)、基质金属蛋白酶(matrix metalloproteinases,MMPs)、基质金属蛋白酶组织抑制剂(tissue inhibitor of metalloproteinases,TIMPs)、血管内皮生长因子(vascular endothelial growth factor,展开更多
Objective: To study the effects of recombinant expression vector containing human breast cancer DF3 promotor and diphtheria toxin A fragment on human breast cancer cells. Methods: Constructing recombinant expression v...Objective: To study the effects of recombinant expression vector containing human breast cancer DF3 promotor and diphtheria toxin A fragment on human breast cancer cells. Methods: Constructing recombinant expression vector PGL3-DF3-DTA and transfecting it into human breast cancer cells of DF3 positive and negative. By means of RT-PCR to measure the expression of DTA in human breast cancer cells. MTT color-imetry was used to examine the effect of PGL3-DF3-DTA on growth of human breast cancer cells. By experiment on nude mice to observe the killing effect of PGL3-DF3-DTA on human breast cancer cells. Results: Recombinant expression vector PGL3-DF3-DTA was highly expressed in human breast cancer cell line of DF3 positive, and it could kill the human breast cancer cells not only in vitro but also in vivo. Conclusion: Recombinant expression vector PGL3-DF3-DTA could produce specific killing effect on human breast cancer cell line of DF3 positive.展开更多
文摘以往研究[1-6]显示,在乳癌细胞的生长、浸润、转移过程中,乳癌特异基因1(breast cancer specific gene-1,BCSG1)、基质金属蛋白酶(matrix metalloproteinases,MMPs)、基质金属蛋白酶组织抑制剂(tissue inhibitor of metalloproteinases,TIMPs)、血管内皮生长因子(vascular endothelial growth factor,
基金Health Department Scientific Research Foundation of Hubei province (No. NX200501)
文摘Objective: To study the effects of recombinant expression vector containing human breast cancer DF3 promotor and diphtheria toxin A fragment on human breast cancer cells. Methods: Constructing recombinant expression vector PGL3-DF3-DTA and transfecting it into human breast cancer cells of DF3 positive and negative. By means of RT-PCR to measure the expression of DTA in human breast cancer cells. MTT color-imetry was used to examine the effect of PGL3-DF3-DTA on growth of human breast cancer cells. By experiment on nude mice to observe the killing effect of PGL3-DF3-DTA on human breast cancer cells. Results: Recombinant expression vector PGL3-DF3-DTA was highly expressed in human breast cancer cell line of DF3 positive, and it could kill the human breast cancer cells not only in vitro but also in vivo. Conclusion: Recombinant expression vector PGL3-DF3-DTA could produce specific killing effect on human breast cancer cell line of DF3 positive.