Schisandrae Fructus, containing schisandrin B (Sch B) as its main active component, is recognized in traditional Chinese medicine (TCM) for its Qi-invigorating properties in the five visceral organs. Our laboratory ha...Schisandrae Fructus, containing schisandrin B (Sch B) as its main active component, is recognized in traditional Chinese medicine (TCM) for its Qi-invigorating properties in the five visceral organs. Our laboratory has shown that the Qi-invigorating action of Chinese tonifying herbs is linked to increased mitochondrial ATP generation and an enhancement in mitochondrial glutathione redox status. To explore whether Sch B can exert Qi-invigorating actions across various tissues, we investigated the effects of Sch B treatment on mitochondrial ATP generation and glutathione redox status in multiple mouse tissues ex vivo. In line with TCM theory, which posits that Zheng Qi generation relies on the Qi function of the visceral organs, we also examined Sch B’s impact on natural killer cell activity and antigen-induced splenocyte proliferation, both serving as indirect measures of Zheng Qi. Our findings revealed that Sch B treatment consistently enhanced mitochondrial ATP generation and improved mitochondrial glutathione redox status in mouse tissues. This boost in mitochondrial function was associated with stimulated innate and adaptive immune responses, marked by increased natural killer cell activity and antigen-induced T/B cell proliferation, potentially through the increased generation of Zheng Qi.展开更多
Objective:To evaluated the immunomodulatory effect of BRP-4,an acidic polysaccharide from Basella rubra(B.rubra) L on the macrophage activity.Methods:Phagocytic activity was determined by the ingestion of Latex Beads-...Objective:To evaluated the immunomodulatory effect of BRP-4,an acidic polysaccharide from Basella rubra(B.rubra) L on the macrophage activity.Methods:Phagocytic activity was determined by the ingestion of Latex Beads-Rabbit IgC-FITC using the fluorescent microscopy and flow cytometry analysis and nitric oxide production was measured using Griess reaction assay.Results:An enhanced production of NO was observed at 10 and 100 μg/mL of BRP-4.The phagocytic activity of macrophage was enhanced in BRP-4 treated RAW264.7 cells.BRP-4combined with concanavalin A(Con A) provided obvious promotion and strengthening of the proliferation of the splenocytes.Conclusions:BRP-4,polysaccharide isolated from B.rubra,is suggested to activate macrophage function and stimulate splenocyte proliferation.The strong immunomodulatory activity of BRP-4 confirmed its good potential as an immunotherapeutic adjuvant.展开更多
To investigate the role of signal transducer and transcriptional activator 5(STAT5)activated in ovalbumin (OVA)-induced splenocyte proliferation of asthma mice,an asthma mouse model was set up by intraperitoneal injec...To investigate the role of signal transducer and transcriptional activator 5(STAT5)activated in ovalbumin (OVA)-induced splenocyte proliferation of asthma mice,an asthma mouse model was set up by intraperitoneal injection and aspiration of OVA with nebulizer.The proliferation of splenocytes isolated from the asthma mice was detected by [~3H]thymidine incorporation.The phosphorytation of STAT5 was examined by Western blotting and STAT5-DNA binding was measured by electrophoretic mobility shift assay(EMSA).OVA could pronouncedly induce the splenocyte proliferation of asthma mice in a dose-dependent manner compared with control groups.Phosphorylation of STAT5 and STAT5-DNA binding were observed in splenocytes from asthma mice induced by OVA at 1 h and 3 h.These results indicated that STAT5 signal pathway played an important role in lymphocyte proliferation of asthma mice induced by OVA.Cellular & Molecular Immunology. 2004;1(6):471-474.展开更多
文摘Schisandrae Fructus, containing schisandrin B (Sch B) as its main active component, is recognized in traditional Chinese medicine (TCM) for its Qi-invigorating properties in the five visceral organs. Our laboratory has shown that the Qi-invigorating action of Chinese tonifying herbs is linked to increased mitochondrial ATP generation and an enhancement in mitochondrial glutathione redox status. To explore whether Sch B can exert Qi-invigorating actions across various tissues, we investigated the effects of Sch B treatment on mitochondrial ATP generation and glutathione redox status in multiple mouse tissues ex vivo. In line with TCM theory, which posits that Zheng Qi generation relies on the Qi function of the visceral organs, we also examined Sch B’s impact on natural killer cell activity and antigen-induced splenocyte proliferation, both serving as indirect measures of Zheng Qi. Our findings revealed that Sch B treatment consistently enhanced mitochondrial ATP generation and improved mitochondrial glutathione redox status in mouse tissues. This boost in mitochondrial function was associated with stimulated innate and adaptive immune responses, marked by increased natural killer cell activity and antigen-induced T/B cell proliferation, potentially through the increased generation of Zheng Qi.
文摘Objective:To evaluated the immunomodulatory effect of BRP-4,an acidic polysaccharide from Basella rubra(B.rubra) L on the macrophage activity.Methods:Phagocytic activity was determined by the ingestion of Latex Beads-Rabbit IgC-FITC using the fluorescent microscopy and flow cytometry analysis and nitric oxide production was measured using Griess reaction assay.Results:An enhanced production of NO was observed at 10 and 100 μg/mL of BRP-4.The phagocytic activity of macrophage was enhanced in BRP-4 treated RAW264.7 cells.BRP-4combined with concanavalin A(Con A) provided obvious promotion and strengthening of the proliferation of the splenocytes.Conclusions:BRP-4,polysaccharide isolated from B.rubra,is suggested to activate macrophage function and stimulate splenocyte proliferation.The strong immunomodulatory activity of BRP-4 confirmed its good potential as an immunotherapeutic adjuvant.
基金the National 863 High Technology Research and Development Program of China(No.2002AA214011) the National Natural Science Foundation of China(No.39860071)
文摘To investigate the role of signal transducer and transcriptional activator 5(STAT5)activated in ovalbumin (OVA)-induced splenocyte proliferation of asthma mice,an asthma mouse model was set up by intraperitoneal injection and aspiration of OVA with nebulizer.The proliferation of splenocytes isolated from the asthma mice was detected by [~3H]thymidine incorporation.The phosphorytation of STAT5 was examined by Western blotting and STAT5-DNA binding was measured by electrophoretic mobility shift assay(EMSA).OVA could pronouncedly induce the splenocyte proliferation of asthma mice in a dose-dependent manner compared with control groups.Phosphorylation of STAT5 and STAT5-DNA binding were observed in splenocytes from asthma mice induced by OVA at 1 h and 3 h.These results indicated that STAT5 signal pathway played an important role in lymphocyte proliferation of asthma mice induced by OVA.Cellular & Molecular Immunology. 2004;1(6):471-474.
