OBJECTIVE: To investigate the immunomodulatory mechanism by which Yangfei Huoxue decoction(YHD) alleviates bleomycin(BLM)-induced pulmonary fibrosis(PF) in rats.METHODS: Rats were randomly divided into two time-point ...OBJECTIVE: To investigate the immunomodulatory mechanism by which Yangfei Huoxue decoction(YHD) alleviates bleomycin(BLM)-induced pulmonary fibrosis(PF) in rats.METHODS: Rats were randomly divided into two time-point groups(day 14 and 28), and each timepoint group comprised the following six subgroups: control, BLM, dexamethasone(DXM), YHD high dose(YHD-H), YHD middle dose(YHD-M), and YHD low dose(YHD-L). Haematoxylin and eosin and Masson staining, flow cytometry, enzymelinked immunosorbent assay, Western blotting and UPLC-QT of analyses were examined.RESULTS: The results showed that YHD reduced the degree of alveolar inflammation and fibrosis;downregulated the expression of CD28, CD80,CD86, Delta-like 1, Notch2, and Notch3;and upregulated the proportions of Th1/Th2 and Tc1/Tc2. The seven components of YHD were detected.CONCLUSION: The current study indicates that YHD mainly functions by regulating the immune system and that the molecular mechanism may be related to the regulation of the Notch signaling pathway.展开更多
目的探讨洋金花醉茄内酯类化合物对银屑病小鼠肠道中Th17/Treg细胞功能的影响。方法采用经典的银屑病小鼠模型,即咪喹莫特乳膏(IMQ)诱导小鼠背部皮肤产生银屑病样病理模型,并随机分为四组,即空白组、模型组、洋金花组和雷公藤阳性药物...目的探讨洋金花醉茄内酯类化合物对银屑病小鼠肠道中Th17/Treg细胞功能的影响。方法采用经典的银屑病小鼠模型,即咪喹莫特乳膏(IMQ)诱导小鼠背部皮肤产生银屑病样病理模型,并随机分为四组,即空白组、模型组、洋金花组和雷公藤阳性药物组。采用Psoriasis area and severity index(PASI)分析各组皮损严重程度;应用流式细胞法检测小鼠肠系膜淋巴结中Th17/Treg细胞数量表达;应用酶联免疫吸附法(ELISA法)依次检测肠粘膜中Th17/Treg细胞相关因子的含量。结果洋金花组能减少IMQ诱导的PASI评分,降低肠系膜中Th17细胞表达及相关细胞因子,而升高Treg细胞的表达及相关细胞因子。结论洋金花醉茄内酯类化合物可降低银屑病小鼠肠道Th17细胞功能,同时升高Treg细胞功能,进一步提示在肠-免疫-皮肤轴中,洋金花醉茄内酯类化合物通过影响肠道中的Th17/Treg细胞免疫平衡而达到防治银屑病的作用。展开更多
中药可以改善肺结核患者的临床症状、影像学表现和痰菌转阴率,其功效与中药对免疫功能的调节关系密切。中药对肺结核相关免疫的调节主要体现在对固有免疫、细胞免疫、体液免疫以及Ⅰ型辅助T淋巴细胞(type I helper T lymphocyte,Th1)/...中药可以改善肺结核患者的临床症状、影像学表现和痰菌转阴率,其功效与中药对免疫功能的调节关系密切。中药对肺结核相关免疫的调节主要体现在对固有免疫、细胞免疫、体液免疫以及Ⅰ型辅助T淋巴细胞(type I helper T lymphocyte,Th1)/Ⅱ型辅助T淋巴细胞(Th2)平衡的调节方面。比如,在固有免疫方面中药能调节各种模式识别受体(pattern recognition receptor,PRR)的表达、提高巨噬细胞的自噬作用以及提高自然杀伤细胞(natural killer cells,NK)的数量;在细胞免疫方面中药能调节CD3+T淋巴细胞、CD4+T淋巴细胞、CD8+T淋巴细胞、调节性T淋巴细胞(regulatory T cells,Treg)等T淋巴细胞亚群的数量以及CD4+/CD8+比值;在体液免疫及Th1/Th2平衡方面中药能抑制过度活跃的体液免疫,恢复Th1/Th2的平衡,以提高机体对结核杆菌的细胞免疫应答。现将有关中药调节肺结核相关免疫的研究进展综述如下。展开更多
基金Supported by the National Natural Science Foundation of China(Based on Notch Signaling Pathway and Its Epigenetic Changes to Discuss the Mechanism of Nourishing Lung and Promoting Blood Circulation Formula to Prevent and Treat Pulmonary Fibrosis,No.81373603)。
文摘OBJECTIVE: To investigate the immunomodulatory mechanism by which Yangfei Huoxue decoction(YHD) alleviates bleomycin(BLM)-induced pulmonary fibrosis(PF) in rats.METHODS: Rats were randomly divided into two time-point groups(day 14 and 28), and each timepoint group comprised the following six subgroups: control, BLM, dexamethasone(DXM), YHD high dose(YHD-H), YHD middle dose(YHD-M), and YHD low dose(YHD-L). Haematoxylin and eosin and Masson staining, flow cytometry, enzymelinked immunosorbent assay, Western blotting and UPLC-QT of analyses were examined.RESULTS: The results showed that YHD reduced the degree of alveolar inflammation and fibrosis;downregulated the expression of CD28, CD80,CD86, Delta-like 1, Notch2, and Notch3;and upregulated the proportions of Th1/Th2 and Tc1/Tc2. The seven components of YHD were detected.CONCLUSION: The current study indicates that YHD mainly functions by regulating the immune system and that the molecular mechanism may be related to the regulation of the Notch signaling pathway.
文摘目的探讨洋金花醉茄内酯类化合物对银屑病小鼠肠道中Th17/Treg细胞功能的影响。方法采用经典的银屑病小鼠模型,即咪喹莫特乳膏(IMQ)诱导小鼠背部皮肤产生银屑病样病理模型,并随机分为四组,即空白组、模型组、洋金花组和雷公藤阳性药物组。采用Psoriasis area and severity index(PASI)分析各组皮损严重程度;应用流式细胞法检测小鼠肠系膜淋巴结中Th17/Treg细胞数量表达;应用酶联免疫吸附法(ELISA法)依次检测肠粘膜中Th17/Treg细胞相关因子的含量。结果洋金花组能减少IMQ诱导的PASI评分,降低肠系膜中Th17细胞表达及相关细胞因子,而升高Treg细胞的表达及相关细胞因子。结论洋金花醉茄内酯类化合物可降低银屑病小鼠肠道Th17细胞功能,同时升高Treg细胞功能,进一步提示在肠-免疫-皮肤轴中,洋金花醉茄内酯类化合物通过影响肠道中的Th17/Treg细胞免疫平衡而达到防治银屑病的作用。
文摘中药可以改善肺结核患者的临床症状、影像学表现和痰菌转阴率,其功效与中药对免疫功能的调节关系密切。中药对肺结核相关免疫的调节主要体现在对固有免疫、细胞免疫、体液免疫以及Ⅰ型辅助T淋巴细胞(type I helper T lymphocyte,Th1)/Ⅱ型辅助T淋巴细胞(Th2)平衡的调节方面。比如,在固有免疫方面中药能调节各种模式识别受体(pattern recognition receptor,PRR)的表达、提高巨噬细胞的自噬作用以及提高自然杀伤细胞(natural killer cells,NK)的数量;在细胞免疫方面中药能调节CD3+T淋巴细胞、CD4+T淋巴细胞、CD8+T淋巴细胞、调节性T淋巴细胞(regulatory T cells,Treg)等T淋巴细胞亚群的数量以及CD4+/CD8+比值;在体液免疫及Th1/Th2平衡方面中药能抑制过度活跃的体液免疫,恢复Th1/Th2的平衡,以提高机体对结核杆菌的细胞免疫应答。现将有关中药调节肺结核相关免疫的研究进展综述如下。
