目的:评价3种活血化瘀中药复方含药血清对神经胶质瘤U251细胞侵袭行为及Janus激酶(JAK)/信号转导及转录激活因子(STAT)通路的影响。方法:将大鼠随机分为生理盐水组(5 m L/kg)、桃红四物汤组(5.7 g/kg)、血府逐瘀汤组(8.5 g/kg)和抵挡汤...目的:评价3种活血化瘀中药复方含药血清对神经胶质瘤U251细胞侵袭行为及Janus激酶(JAK)/信号转导及转录激活因子(STAT)通路的影响。方法:将大鼠随机分为生理盐水组(5 m L/kg)、桃红四物汤组(5.7 g/kg)、血府逐瘀汤组(8.5 g/kg)和抵挡汤组(2.8 g/kg),以生药计,每天ig给药1次,连续10 d,末次给药2 h后制备10%含药血清培养液。以10%含药血清培养液干预U251细胞1周后,采用Transwell法检测细胞侵袭率,Western blot法检测细胞中金属基质蛋白酶2(MMP-2)、MMP-9、磷酸化JAK2(p-JAK2)、磷酸化STAT3(p-STAT3)蛋白表达,实时荧光定量聚合酶链式反应法检测细胞中MMP-2、MMP-9 m RNA表达。结果:与空白血清比较,血府逐瘀汤含药血清能降低细胞侵袭率(P<0.05),下调细胞中MMP-2、MMP-9 m RNA及其蛋白表达以及细胞中p-JAK2、p-STAT3蛋白表达(P<0.05或P<0.01);而桃红四物汤含药血清和抵挡汤含药血清作用后上述指标差异无统计学意义(P>0.05)。结论:在3种活血化瘀中药复方中,血府逐瘀汤具有显著抑制U251细胞侵袭的能力;其机制可能与抑制JAK2/STAT3信号通路激活,下调MMP-2、MMP-9基因及蛋白表达有关。展开更多
After irradiation with 8 Gy 60Coγ-ray,mice were immediaterly given intraperitoneal injection of 200 mg 100 % compound blood-activating soup twice a day. On the 3rd and 7th day, the P53 gene expression of bone marrow ...After irradiation with 8 Gy 60Coγ-ray,mice were immediaterly given intraperitoneal injection of 200 mg 100 % compound blood-activating soup twice a day. On the 3rd and 7th day, the P53 gene expression of bone marrow hematopoietic cells in Chinese drug group was found to be higher than that in normal group, and it was also significantly higher than that in control group. The expression level of GADD153 gene which was not expressed in normal group was much lower in Chinese drug group than that in control group. On the 7th day after irradiation, the P53 and GADD153 gene expression levels of splenic mononuclear cells were consistent with those of bone marrow hematopoietic cells both in Chinese drug group and control group. On the 3rd and 7th day, the bone marrow hematopoietic tissue volume in Chinese drug group was higher than that in control group, with no difference found between the two groups. While on the 14th day, the difference became significant (P＜0. 01). The results showed that commonly used blood-activating and stasis-eliminating drugs may strengthen .the viability of hematopoietic cells and promote the rehabilitation of hematopoiesis by inducing wt-P53 expression to block the bone marrow hematopoietic cells in G1 phase, during which DNA could be repaired.展开更多
After irradiated by & Gy 60Co γ-ray, mice were intraperitoneally injected immediately with 0.2 ml 100 % compound blood-activating soup twice a day for 10 days. The in situ ulnar bone marrow partial pressure of ox...After irradiated by & Gy 60Co γ-ray, mice were intraperitoneally injected immediately with 0.2 ml 100 % compound blood-activating soup twice a day for 10 days. The in situ ulnar bone marrow partial pressure of oxygen (PbO2) was determined in vivo before, during and after irradiation respectively. The bone marrow sections in the same part were observed. Our results showed that the normal murine ulnar PbO2 was 12.72±1. 05kpa. During irradiation, the level of PbO2 decreased to 10. 78±1. 17 kpa (P＜0. 001). And 3 days after irradiation, PbO2 decreased to 9. 75±0. 52 kpa, suggesting that the commonly used 'blood-activating and stasis-eliminating' Chinese drugs could promote the rehabilitation and proliferation of bone marrow microvessels in the acute radiation injured mice, expand their areas, increase the oxygen supply of bone marrow microenviroment, thereby leading to PbO2 much higher increase than that of control group. It is also helpful in the proliferation and rehabilitation of hematopoietic cells.展开更多
文摘目的:评价3种活血化瘀中药复方含药血清对神经胶质瘤U251细胞侵袭行为及Janus激酶(JAK)/信号转导及转录激活因子(STAT)通路的影响。方法:将大鼠随机分为生理盐水组(5 m L/kg)、桃红四物汤组(5.7 g/kg)、血府逐瘀汤组(8.5 g/kg)和抵挡汤组(2.8 g/kg),以生药计,每天ig给药1次,连续10 d,末次给药2 h后制备10%含药血清培养液。以10%含药血清培养液干预U251细胞1周后,采用Transwell法检测细胞侵袭率,Western blot法检测细胞中金属基质蛋白酶2(MMP-2)、MMP-9、磷酸化JAK2(p-JAK2)、磷酸化STAT3(p-STAT3)蛋白表达,实时荧光定量聚合酶链式反应法检测细胞中MMP-2、MMP-9 m RNA表达。结果:与空白血清比较,血府逐瘀汤含药血清能降低细胞侵袭率(P<0.05),下调细胞中MMP-2、MMP-9 m RNA及其蛋白表达以及细胞中p-JAK2、p-STAT3蛋白表达(P<0.05或P<0.01);而桃红四物汤含药血清和抵挡汤含药血清作用后上述指标差异无统计学意义(P>0.05)。结论:在3种活血化瘀中药复方中,血府逐瘀汤具有显著抑制U251细胞侵袭的能力;其机制可能与抑制JAK2/STAT3信号通路激活,下调MMP-2、MMP-9基因及蛋白表达有关。
文摘After irradiation with 8 Gy 60Coγ-ray,mice were immediaterly given intraperitoneal injection of 200 mg 100 % compound blood-activating soup twice a day. On the 3rd and 7th day, the P53 gene expression of bone marrow hematopoietic cells in Chinese drug group was found to be higher than that in normal group, and it was also significantly higher than that in control group. The expression level of GADD153 gene which was not expressed in normal group was much lower in Chinese drug group than that in control group. On the 7th day after irradiation, the P53 and GADD153 gene expression levels of splenic mononuclear cells were consistent with those of bone marrow hematopoietic cells both in Chinese drug group and control group. On the 3rd and 7th day, the bone marrow hematopoietic tissue volume in Chinese drug group was higher than that in control group, with no difference found between the two groups. While on the 14th day, the difference became significant (P＜0. 01). The results showed that commonly used blood-activating and stasis-eliminating drugs may strengthen .the viability of hematopoietic cells and promote the rehabilitation of hematopoiesis by inducing wt-P53 expression to block the bone marrow hematopoietic cells in G1 phase, during which DNA could be repaired.
文摘After irradiated by & Gy 60Co γ-ray, mice were intraperitoneally injected immediately with 0.2 ml 100 % compound blood-activating soup twice a day for 10 days. The in situ ulnar bone marrow partial pressure of oxygen (PbO2) was determined in vivo before, during and after irradiation respectively. The bone marrow sections in the same part were observed. Our results showed that the normal murine ulnar PbO2 was 12.72±1. 05kpa. During irradiation, the level of PbO2 decreased to 10. 78±1. 17 kpa (P＜0. 001). And 3 days after irradiation, PbO2 decreased to 9. 75±0. 52 kpa, suggesting that the commonly used 'blood-activating and stasis-eliminating' Chinese drugs could promote the rehabilitation and proliferation of bone marrow microvessels in the acute radiation injured mice, expand their areas, increase the oxygen supply of bone marrow microenviroment, thereby leading to PbO2 much higher increase than that of control group. It is also helpful in the proliferation and rehabilitation of hematopoietic cells.
