To investigate the anti-human papilloma virus (HPV) effect of the external liniment of traditional Chinese medicine “Keyouling”, the efficacy of this drug acting upon the proliferation and growth of the normal epide...To investigate the anti-human papilloma virus (HPV) effect of the external liniment of traditional Chinese medicine “Keyouling”, the efficacy of this drug acting upon the proliferation and growth of the normal epidermis cells of rabbits′ penis prepuce in different concentrations was observed. An experimental model of pathology of histocytes infected with HPV in vitro was established by using the human HPV infected prepuce epidermis cells as virus carrier to infect the sub-cultured epidermis cells of rabbits′ penis prepuce. The direct killing effect and the blocking effect of infections of epidermis cells in rabbits′ penis prepuce induced by HPV with different concentrations of “Keyouling” were determined by 3 kinds of culture methods: (1) the infected epidermis cells of rabbits′ penis prepuce were challenged by co-culture with HPV suspension and with culture medium containing drug; (2) the co-culture with epidermis cells of rabbits′ penis prepuce and HPV suspension was challenged with drug; (3) co-culture with culture medium containing drug and epidermis cells of rabbits′ penis prepuce was challenged with HPV suspension. It was found that “Keyouling” had little effect on the proliferation and growth of the normal epidermis cells of rabbits′ penis prepuce, but it had direct killing effect on HPV, and blocked effectively the infection of the epidermis cells of rabbits′ penis prepuce by HPV. It concludes that “Keyouling” has significant killing effect to HPV, but not normal histocytes in vitro , indicating that it is safe for clinical use. Its blocking effect on the HPV infection of rabbits′ penis prepuce epidermis cells suggested “Keyouling” may be clinically used to prevent the development of tumors or to inhibit the further progression or metastasis of tumors.展开更多
白血病是目前临床上高发的急危重症,病死率极高,其中白血病干细胞(leukemia stem cells,LSC)发生免疫逃逸是白血病诱导缓解后复发及进展的主要因素。中医药(Traditional Chinese Medicine,TCM)临床诊疗具有鲜明的辨证论治优势,基于“以...白血病是目前临床上高发的急危重症,病死率极高,其中白血病干细胞(leukemia stem cells,LSC)发生免疫逃逸是白血病诱导缓解后复发及进展的主要因素。中医药(Traditional Chinese Medicine,TCM)临床诊疗具有鲜明的辨证论治优势,基于“以平为期”的诊治目的,中医药辨治白血病强调恢复人体机能的“阴阳和谐”,有助于提高机体自身免疫力,符合干预肿瘤细胞免疫逃逸的机制。本文从文献研究及中医理论探讨中医药干预LSC免疫逃逸的机制及其研究进展。展开更多
骨质疏松症作为一种慢性代谢性疾病影响中老年人的正常生活。临床上,防治骨质疏松症缺少靶点明确和药效显著的特效药已成为亟待解决的棘手难题。AMP活化蛋白激酶(AMPK)作为细胞的能量感受器,在骨质疏松的关键病因——骨重建失衡中发挥...骨质疏松症作为一种慢性代谢性疾病影响中老年人的正常生活。临床上,防治骨质疏松症缺少靶点明确和药效显著的特效药已成为亟待解决的棘手难题。AMP活化蛋白激酶(AMPK)作为细胞的能量感受器,在骨质疏松的关键病因——骨重建失衡中发挥着重要作用,可以直接影响骨多细胞单位中骨髓间充质干细胞(BMSCs)、成骨细胞和破骨细胞,已有越来越多的研究发现并报道了中药活性成分靶向AMPK抗骨质疏松的作用和机制,取得了一定的研究成果。通过Web of Science、Pubmed、万方和中国知网数据库等对于近10年相关文献进行检索,搜集并整理最新的研究进展,对于BMSCs、成骨细胞和破骨细胞中AMPK的相关作用进行梳理,涉及BMSCs中Wnt/β-catenin、ERK、mTOR和Gfi1/OPN,成骨细胞中Wnt/β-catenin和BMP-2/Smad以及破骨细胞中c-Fos/NFATc1等不同的下游信号通路。以中药活性成分白藜芦醇、人参皂苷Rd、柚皮苷、芒柄花黄素、血根碱和高车前素等相关研究作为依据进行阐述和论证,为更好地发挥和探究中药及其活性成分靶向AMPK抗骨质疏松的作用机制提供新思路。展开更多
背景研究表明青光眼的眼压增高与转化生长因子-β(TGF-β)促进小梁网细胞外基质的堆积以及黏附分子CD44导致房水排出阻力增加有关。传统中药青光安颗粒剂是中医临床上常用的降跟压药物,其是否通过小梁网通路发挥作用尚不清楚。目的...背景研究表明青光眼的眼压增高与转化生长因子-β(TGF-β)促进小梁网细胞外基质的堆积以及黏附分子CD44导致房水排出阻力增加有关。传统中药青光安颗粒剂是中医临床上常用的降跟压药物,其是否通过小梁网通路发挥作用尚不清楚。目的研究青光安颗粒剂对自发性青光眼模型DBA/2J小鼠房水动力学的影响及其作用机制。方法选取lO只眼压正常的3月龄雌性DBA/2J小鼠作为对照组,采用计算机随机数字分配法将20只9月龄自发性眼压升高的DBA/2J小鼠随机分为高眼压组和青光安组,青光安组小鼠采用2.5g/kg复方青光安颗粒剂灌胃,每天2次,连续15d,对照组和高眼压组小鼠以相同剂量生理盐水灌胃。采用经前房注入/抽吸系统进行眼压测量,分别以2.5、5.0μl/min的速率继续灌注,计算房水流畅系数(c)值和房水流出阻力(R)值。将3月龄DBA/2J小鼠60只按计算机随机数字分配法分为高剂量青光安组、中剂量青光安组、低剂量青光安组和空白对照组,每组各15只,分别用25.00、12.50和6.25g/kg青光安颗粒剂灌胃,空白对照组用等容量生理盐水灌胃,给药后7d麻醉条件下提取各组小鼠含青光安药物血清和空白对照动物血清,然后收集各组小鼠含小梁网巩膜组织进行培养,采用纤连蛋白(FN)、层黏连蛋白(LN)和神经元特异性烯醇化酶(NSE)免疫组织化学染色鉴定小梁网细胞。终质量浓度为0、5、10、20、50和100ng/ml的TGF-β处理小梁网细胞24h,采用MTT比色法检测各组细胞活性;用不同质量浓度含药血清培养经20ng/mlTGF-β处理的小梁细胞,分别于培养后24、48和72h采用ELISA法检测细胞上清液中TGF-β2受体质量浓度,采用Westernblot法检测各组小梁网细胞中CD44蛋白的相对表达量。结果对照组、高眼压组和青光安组小鼠在2.5td/min和5.0μl/min灌注速率下眼压明显不同,高眼压组小鼠眼压值明显高于青光安组和对照组,青光安组小鼠c值较高眼压组明显降低(1.08±O.36%2.35±1.34),R值明显增加(1.05±O.47 vs 0.64±0.55),差异均有统计学意义(均P〈O.01)。原代培养的细胞呈长梭形,FN、LN和NSE均呈阳性表达。5、10和20ng/mlTGF.p处理组细胞活力值明显低于0ng/mlTGF-β处理组细胞,差异均有统计学意义(均P〈0.05)。与空白对照组比较,TGF.母组小梁网细胞上清液中TGF-β2受体质量浓度和细胞中CD44蛋白相对表达量均明显升高,差异均有统计学意义(均P〈O.01);细胞培养后24、48和72hTGF-β高剂量含药血清组细胞上清液中TGF-β2受体质量浓度和细胞中CD44相对表达量均明显低于TGF-β组和TGF-B+低剂量含药血清组,差异均有统计学意义(均P〈0.01)。结论青光安颗粒剂通过影响房水动力学因素达到降低青光眼眼压的作用。青光安含药血清能明显降低体外培养的鼠小梁网细胞中TGF-β2受体和CD44的表达。展开更多
文摘To investigate the anti-human papilloma virus (HPV) effect of the external liniment of traditional Chinese medicine “Keyouling”, the efficacy of this drug acting upon the proliferation and growth of the normal epidermis cells of rabbits′ penis prepuce in different concentrations was observed. An experimental model of pathology of histocytes infected with HPV in vitro was established by using the human HPV infected prepuce epidermis cells as virus carrier to infect the sub-cultured epidermis cells of rabbits′ penis prepuce. The direct killing effect and the blocking effect of infections of epidermis cells in rabbits′ penis prepuce induced by HPV with different concentrations of “Keyouling” were determined by 3 kinds of culture methods: (1) the infected epidermis cells of rabbits′ penis prepuce were challenged by co-culture with HPV suspension and with culture medium containing drug; (2) the co-culture with epidermis cells of rabbits′ penis prepuce and HPV suspension was challenged with drug; (3) co-culture with culture medium containing drug and epidermis cells of rabbits′ penis prepuce was challenged with HPV suspension. It was found that “Keyouling” had little effect on the proliferation and growth of the normal epidermis cells of rabbits′ penis prepuce, but it had direct killing effect on HPV, and blocked effectively the infection of the epidermis cells of rabbits′ penis prepuce by HPV. It concludes that “Keyouling” has significant killing effect to HPV, but not normal histocytes in vitro , indicating that it is safe for clinical use. Its blocking effect on the HPV infection of rabbits′ penis prepuce epidermis cells suggested “Keyouling” may be clinically used to prevent the development of tumors or to inhibit the further progression or metastasis of tumors.
文摘白血病是目前临床上高发的急危重症,病死率极高,其中白血病干细胞(leukemia stem cells,LSC)发生免疫逃逸是白血病诱导缓解后复发及进展的主要因素。中医药(Traditional Chinese Medicine,TCM)临床诊疗具有鲜明的辨证论治优势,基于“以平为期”的诊治目的,中医药辨治白血病强调恢复人体机能的“阴阳和谐”,有助于提高机体自身免疫力,符合干预肿瘤细胞免疫逃逸的机制。本文从文献研究及中医理论探讨中医药干预LSC免疫逃逸的机制及其研究进展。
文摘骨质疏松症作为一种慢性代谢性疾病影响中老年人的正常生活。临床上,防治骨质疏松症缺少靶点明确和药效显著的特效药已成为亟待解决的棘手难题。AMP活化蛋白激酶(AMPK)作为细胞的能量感受器,在骨质疏松的关键病因——骨重建失衡中发挥着重要作用,可以直接影响骨多细胞单位中骨髓间充质干细胞(BMSCs)、成骨细胞和破骨细胞,已有越来越多的研究发现并报道了中药活性成分靶向AMPK抗骨质疏松的作用和机制,取得了一定的研究成果。通过Web of Science、Pubmed、万方和中国知网数据库等对于近10年相关文献进行检索,搜集并整理最新的研究进展,对于BMSCs、成骨细胞和破骨细胞中AMPK的相关作用进行梳理,涉及BMSCs中Wnt/β-catenin、ERK、mTOR和Gfi1/OPN,成骨细胞中Wnt/β-catenin和BMP-2/Smad以及破骨细胞中c-Fos/NFATc1等不同的下游信号通路。以中药活性成分白藜芦醇、人参皂苷Rd、柚皮苷、芒柄花黄素、血根碱和高车前素等相关研究作为依据进行阐述和论证,为更好地发挥和探究中药及其活性成分靶向AMPK抗骨质疏松的作用机制提供新思路。
文摘背景研究表明青光眼的眼压增高与转化生长因子-β(TGF-β)促进小梁网细胞外基质的堆积以及黏附分子CD44导致房水排出阻力增加有关。传统中药青光安颗粒剂是中医临床上常用的降跟压药物,其是否通过小梁网通路发挥作用尚不清楚。目的研究青光安颗粒剂对自发性青光眼模型DBA/2J小鼠房水动力学的影响及其作用机制。方法选取lO只眼压正常的3月龄雌性DBA/2J小鼠作为对照组,采用计算机随机数字分配法将20只9月龄自发性眼压升高的DBA/2J小鼠随机分为高眼压组和青光安组,青光安组小鼠采用2.5g/kg复方青光安颗粒剂灌胃,每天2次,连续15d,对照组和高眼压组小鼠以相同剂量生理盐水灌胃。采用经前房注入/抽吸系统进行眼压测量,分别以2.5、5.0μl/min的速率继续灌注,计算房水流畅系数(c)值和房水流出阻力(R)值。将3月龄DBA/2J小鼠60只按计算机随机数字分配法分为高剂量青光安组、中剂量青光安组、低剂量青光安组和空白对照组,每组各15只,分别用25.00、12.50和6.25g/kg青光安颗粒剂灌胃,空白对照组用等容量生理盐水灌胃,给药后7d麻醉条件下提取各组小鼠含青光安药物血清和空白对照动物血清,然后收集各组小鼠含小梁网巩膜组织进行培养,采用纤连蛋白(FN)、层黏连蛋白(LN)和神经元特异性烯醇化酶(NSE)免疫组织化学染色鉴定小梁网细胞。终质量浓度为0、5、10、20、50和100ng/ml的TGF-β处理小梁网细胞24h,采用MTT比色法检测各组细胞活性;用不同质量浓度含药血清培养经20ng/mlTGF-β处理的小梁细胞,分别于培养后24、48和72h采用ELISA法检测细胞上清液中TGF-β2受体质量浓度,采用Westernblot法检测各组小梁网细胞中CD44蛋白的相对表达量。结果对照组、高眼压组和青光安组小鼠在2.5td/min和5.0μl/min灌注速率下眼压明显不同,高眼压组小鼠眼压值明显高于青光安组和对照组,青光安组小鼠c值较高眼压组明显降低(1.08±O.36%2.35±1.34),R值明显增加(1.05±O.47 vs 0.64±0.55),差异均有统计学意义(均P〈O.01)。原代培养的细胞呈长梭形,FN、LN和NSE均呈阳性表达。5、10和20ng/mlTGF.p处理组细胞活力值明显低于0ng/mlTGF-β处理组细胞,差异均有统计学意义(均P〈0.05)。与空白对照组比较,TGF.母组小梁网细胞上清液中TGF-β2受体质量浓度和细胞中CD44蛋白相对表达量均明显升高,差异均有统计学意义(均P〈O.01);细胞培养后24、48和72hTGF-β高剂量含药血清组细胞上清液中TGF-β2受体质量浓度和细胞中CD44相对表达量均明显低于TGF-β组和TGF-B+低剂量含药血清组,差异均有统计学意义(均P〈0.01)。结论青光安颗粒剂通过影响房水动力学因素达到降低青光眼眼压的作用。青光安含药血清能明显降低体外培养的鼠小梁网细胞中TGF-β2受体和CD44的表达。