骨髓增生异常综合征(myelodysplastic syndrome,MDS)是一组起源于造血干细胞,以髓系细胞发育异常、无效造血、难治性血细胞减少、高风险向急性髓系白血病转化为特点的异质性髓系克隆性疾病[1]。弥漫大B细胞淋巴瘤(diffuse large B cell ...骨髓增生异常综合征(myelodysplastic syndrome,MDS)是一组起源于造血干细胞,以髓系细胞发育异常、无效造血、难治性血细胞减少、高风险向急性髓系白血病转化为特点的异质性髓系克隆性疾病[1]。弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)起源于淋巴结和淋巴组织,是最常见的非霍奇金淋巴瘤,占比30%~40%[2],在临床表现、预后等方面具有较大异质性。展开更多
Objective： To explore the effects of Danshen Injection （丹参注射液） on inhibition proliferation, inducing apoptosis and its possible mechanisms on human erythroid leukemic （HEL） cells. Methods： The commercial Ch...Objective： To explore the effects of Danshen Injection （丹参注射液） on inhibition proliferation, inducing apoptosis and its possible mechanisms on human erythroid leukemic （HEL） cells. Methods： The commercial Chinese patent medicine of Danshen Injection was extracted and isolated from Chinese herb of Salvia miltiorrhiza bung. The inhibition effects of proliferation were assayed by 3-（4,5-dimethylthiazol-2-yl）-2, 5-diphenyltetrazolium bromide （M＇l-r） method in HEL cells treated by Danshen Injection at various concentrations for 48 h. The cellular apoptosis was observed in morphology, analyzed by flow cytometry with annexin V and propidium iodide （PI） staining, and examined by DNA degradation ladder on agarose gel electrophoresis. Meanwhile, the expression levels of mutant Janus kinasez （JAK2） gene and phosphorylation-JAK2 （P-JAK2） protein were detected by allele specific-polymerase chain reaction and Western blot. ]Results： The proliferation of HEL cells was effectively inhibited by Danshen Injection in a dose-dependent manner, with suppression rates from 19.46 ± 2.31% to 50.20 ± 5.21%. Typical apoptosis cells was observed in Danshen Injection treated HEL cells, the rates of annexin V positive cells increased obviously in a dose-dependent manner, as well as the DNA degradation ladder of apoptosis revealed on gel electrophoresis. The expression levels of mutant JAK2 gene and P-JAK2 protein reduced gradually with increasing dosage of Danshen injection. Conclusion： Danshen Injection could not only significantly inhibit the proliferation, but also induce apoptosis in HEL cells; down-regulation of the mutant JAK2 gene and P-JAK2 protein expressions are probably one of its molecular mechanisms.展开更多
文摘骨髓增生异常综合征(myelodysplastic syndrome,MDS)是一组起源于造血干细胞,以髓系细胞发育异常、无效造血、难治性血细胞减少、高风险向急性髓系白血病转化为特点的异质性髓系克隆性疾病[1]。弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)起源于淋巴结和淋巴组织,是最常见的非霍奇金淋巴瘤,占比30%~40%[2],在临床表现、预后等方面具有较大异质性。
基金Supported by Zhejiang Province Administration of Traditional Chinese Medicine(No.2010ZA120)Zhejiang Provincial Natural Science Foundation of China(No.Y207632)
文摘Objective： To explore the effects of Danshen Injection （丹参注射液） on inhibition proliferation, inducing apoptosis and its possible mechanisms on human erythroid leukemic （HEL） cells. Methods： The commercial Chinese patent medicine of Danshen Injection was extracted and isolated from Chinese herb of Salvia miltiorrhiza bung. The inhibition effects of proliferation were assayed by 3-（4,5-dimethylthiazol-2-yl）-2, 5-diphenyltetrazolium bromide （M＇l-r） method in HEL cells treated by Danshen Injection at various concentrations for 48 h. The cellular apoptosis was observed in morphology, analyzed by flow cytometry with annexin V and propidium iodide （PI） staining, and examined by DNA degradation ladder on agarose gel electrophoresis. Meanwhile, the expression levels of mutant Janus kinasez （JAK2） gene and phosphorylation-JAK2 （P-JAK2） protein were detected by allele specific-polymerase chain reaction and Western blot. ]Results： The proliferation of HEL cells was effectively inhibited by Danshen Injection in a dose-dependent manner, with suppression rates from 19.46 ± 2.31% to 50.20 ± 5.21%. Typical apoptosis cells was observed in Danshen Injection treated HEL cells, the rates of annexin V positive cells increased obviously in a dose-dependent manner, as well as the DNA degradation ladder of apoptosis revealed on gel electrophoresis. The expression levels of mutant JAK2 gene and P-JAK2 protein reduced gradually with increasing dosage of Danshen injection. Conclusion： Danshen Injection could not only significantly inhibit the proliferation, but also induce apoptosis in HEL cells; down-regulation of the mutant JAK2 gene and P-JAK2 protein expressions are probably one of its molecular mechanisms.
