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Apoptotic sensitivity to irradiation increased after transfection of chk1 antisense chain to HL-60 cell line / 华中科技大学学报(医学)(英德文版)
Journal of Huazhong University of Science and Technology (Medical Sciences) ; (6): 513-5, 2005.
Article in English | WPRIM | ID: wpr-634815
ABSTRACT
The HL-60 cells were transfected with chk1 antisense and sense chain, and 24 h later subjected to irradiation. Twenty-four h after irradiation, the changes in the chk1 protein expression was assayed by Western blot, and the cell cycles and apoptosis rate detected by FCM. The irradiated apoptosis sensitivity was increased by antisense blocking of chk1 gene in HL-60 cell line with the apoptosis rate being 26.31%, significantly higher than that by the sense blocking (10.34%, 0.025 < P < 0.05). In HL-60 cells transfected with chk1 antisense chain, the G2/M phase arrest was attenuated and the cells in G2/M phase were accounted for 38.42%, significantly lower than those of the cells transfected with chkl sense chain (54.64%, 0.005 < P < 0.01). It was concluded that antisense blocking of chk1 gene could increase the apoptosis sensitivity to irradiation.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Protein Kinases / Radiation Tolerance / Transfection / Cell Cycle / Oligonucleotides, Antisense / Apoptosis / HL-60 Cells Type of study: Diagnostic study Language: English Journal: Journal of Huazhong University of Science and Technology (Medical Sciences) Year: 2005 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Protein Kinases / Radiation Tolerance / Transfection / Cell Cycle / Oligonucleotides, Antisense / Apoptosis / HL-60 Cells Type of study: Diagnostic study Language: English Journal: Journal of Huazhong University of Science and Technology (Medical Sciences) Year: 2005 Type: Article