Objective： To observe the influence of moxibustion serum of mice on the expression of Fas, bcl-2 mRNA and protein of EL-4 lymphoma cells in vitro. Method： The EL-4 lymphoma cells were cultivated for 24 h in the moxi...Objective： To observe the influence of moxibustion serum of mice on the expression of Fas, bcl-2 mRNA and protein of EL-4 lymphoma cells in vitro. Method： The EL-4 lymphoma cells were cultivated for 24 h in the moxibustion serum of mice. The expression of Fas and bcl-2 mRNA of EL-4 lymphoma cells were detected by in-situ hybridization method, and the protein expression of Fas and bcl-2 were observed by the immuocytochemistry method. Results： The expression of bcl-2 mRNA and protein decreased , and the expression of Fas mRNA and protein increased significantly in EL-4 cells, which were cultivated in the moxibustion serum compared those cultivated in normal mice serum （P〈0.05）. Conclusion： Moxibustion serum could down-regulate the bcl-2 mRNA and protein and up-regulate the Fas mRNA and protein of EL-4 cells.展开更多
OBJECTIVE: To further characterize the differentiation inducing properties of EDRF1 and demonstrate its functional pathway involved in regulation of globin gene expression. METHODS: By transfecting EDRF1 sense and ant...OBJECTIVE: To further characterize the differentiation inducing properties of EDRF1 and demonstrate its functional pathway involved in regulation of globin gene expression. METHODS: By transfecting EDRF1 sense and antisense constructs into HEL cells, we identified the expression of globin and erythropoietin receptor genes by Northern blot analysis. RT-PCR and EMSA (electrophoresis mobility shift assay) were performed to monitor the expression and DNA-binding activity of erythroid specific transcription factors GATA-1 and NF-E2. RESULTS: It was shown that when EDRF1 was overexpressed, production of alpha-globin increased. In antisense EDRF1, overexpression of HEL cells, significant loss of alpha-, gamma-globin mRNA synthesis was observed. The transcription of endogenous GATA-1 and NF-E2 mRNA expression were maintained at the same levels compared with control experiments. However, the transcription activity of GATA-1 was severely impaired. Expression of erythropoietin receptor gene was not influenced by EDRF1 gene overexpression. CONCLUSION: The results suggested that EDRF1 regulated alpha- and gamma-globin gene synthesis by modulating DNA-binding activity of GATA-1 transcription factor.展开更多
基金The Key Laboratory of Acupuncture-immune Effects of State Administration of Traditional Chinese MedicineShanghai Leading Academic Discipline Project(S30304)
文摘Objective： To observe the influence of moxibustion serum of mice on the expression of Fas, bcl-2 mRNA and protein of EL-4 lymphoma cells in vitro. Method： The EL-4 lymphoma cells were cultivated for 24 h in the moxibustion serum of mice. The expression of Fas and bcl-2 mRNA of EL-4 lymphoma cells were detected by in-situ hybridization method, and the protein expression of Fas and bcl-2 were observed by the immuocytochemistry method. Results： The expression of bcl-2 mRNA and protein decreased , and the expression of Fas mRNA and protein increased significantly in EL-4 cells, which were cultivated in the moxibustion serum compared those cultivated in normal mice serum （P〈0.05）. Conclusion： Moxibustion serum could down-regulate the bcl-2 mRNA and protein and up-regulate the Fas mRNA and protein of EL-4 cells.
文摘OBJECTIVE: To further characterize the differentiation inducing properties of EDRF1 and demonstrate its functional pathway involved in regulation of globin gene expression. METHODS: By transfecting EDRF1 sense and antisense constructs into HEL cells, we identified the expression of globin and erythropoietin receptor genes by Northern blot analysis. RT-PCR and EMSA (electrophoresis mobility shift assay) were performed to monitor the expression and DNA-binding activity of erythroid specific transcription factors GATA-1 and NF-E2. RESULTS: It was shown that when EDRF1 was overexpressed, production of alpha-globin increased. In antisense EDRF1, overexpression of HEL cells, significant loss of alpha-, gamma-globin mRNA synthesis was observed. The transcription of endogenous GATA-1 and NF-E2 mRNA expression were maintained at the same levels compared with control experiments. However, the transcription activity of GATA-1 was severely impaired. Expression of erythropoietin receptor gene was not influenced by EDRF1 gene overexpression. CONCLUSION: The results suggested that EDRF1 regulated alpha- and gamma-globin gene synthesis by modulating DNA-binding activity of GATA-1 transcription factor.
