The expression of silience of death domains (SODD) and its clinical significance and relationship with phospho-NF-κB-p65 proteins in bone marrow cells of childhood acute lymphoblas- tic leukaemia (ALL) were explored,...The expression of silience of death domains (SODD) and its clinical significance and relationship with phospho-NF-κB-p65 proteins in bone marrow cells of childhood acute lymphoblas- tic leukaemia (ALL) were explored, and the expression of SODD and phospho-NF-κB-p65 in Jurkat cells treated with chemotherapeutic drugs was detected in order to find a new chemotherapeutic target. The expression of SODD and phospho-NF-κB-p65 proteins in bone marrow cells was detected by immunohistochemistry in 25 children with ALL. The apoptosis rate was measured by An- nexin-V-Fluorescence/PI double-labeling flow cytometry and the expression of SODD and phos- pho-NF-κB-p65 proteins determined by Western blotting in the Jurkat cells. It was found that the ex- pression of SODD and active P65 in ALL was significantly higher than that in normal control group (P<0.05). The expression of the SODD and phospho-NF-κB-p65 proteins in the high-risk (HR) group was significantly higher than that in the standard-risk (SR) group (P<0.05). The Pearson rank correla- tion analysis revealed that there was a positive correlation between SODD and phospho-NF-κB-p65 expression (P<0.01, r=0.69). VCR could effectively induce the apoptosis of Jurkat cells, and down-regulate the expression of SODD and phospho-NF-κB-p65 proteins in a time-dependent man- ner, but DNR could not down-regulate the expression of SODD effectively. It was concluded that SODD may be closely related to the clinical classification and prognosis of ALL in children. The ex- pression of SODD and phospho-NF-κB-p65 had a definite synergistic relationship with the onset and development of ALL. VCR could down-regulate the expression of SODD and inhibit the NF-κB ac- tivation, which could recover the sensibility of apoptosis in leukemic cells.展开更多
基金a grant from National Natu-ral Sciences Foundation of China (No. 39970778)
文摘The expression of silience of death domains (SODD) and its clinical significance and relationship with phospho-NF-κB-p65 proteins in bone marrow cells of childhood acute lymphoblas- tic leukaemia (ALL) were explored, and the expression of SODD and phospho-NF-κB-p65 in Jurkat cells treated with chemotherapeutic drugs was detected in order to find a new chemotherapeutic target. The expression of SODD and phospho-NF-κB-p65 proteins in bone marrow cells was detected by immunohistochemistry in 25 children with ALL. The apoptosis rate was measured by An- nexin-V-Fluorescence/PI double-labeling flow cytometry and the expression of SODD and phos- pho-NF-κB-p65 proteins determined by Western blotting in the Jurkat cells. It was found that the ex- pression of SODD and active P65 in ALL was significantly higher than that in normal control group (P<0.05). The expression of the SODD and phospho-NF-κB-p65 proteins in the high-risk (HR) group was significantly higher than that in the standard-risk (SR) group (P<0.05). The Pearson rank correla- tion analysis revealed that there was a positive correlation between SODD and phospho-NF-κB-p65 expression (P<0.01, r=0.69). VCR could effectively induce the apoptosis of Jurkat cells, and down-regulate the expression of SODD and phospho-NF-κB-p65 proteins in a time-dependent man- ner, but DNR could not down-regulate the expression of SODD effectively. It was concluded that SODD may be closely related to the clinical classification and prognosis of ALL in children. The ex- pression of SODD and phospho-NF-κB-p65 had a definite synergistic relationship with the onset and development of ALL. VCR could down-regulate the expression of SODD and inhibit the NF-κB ac- tivation, which could recover the sensibility of apoptosis in leukemic cells.