目的:探讨补肾固冲中药复方寿胎丸(STD)调节复发性自然流产患者(URSA)树突状细胞(DC)功能与机制。方法:正常早孕妇女和URSA患者各30例,作为正常对照组和URSA组,后者给予寿胎丸中药治疗。空腹抽取正常对照组及URSA患者治疗前后静脉血,分离单个核细胞,流式细胞术检测CD11c+HLA-DR+、CD11c+CD80+、CD11c+CD86+细胞比例,RT-PCR法检测静脉血HLA-DR、CD80、CD86、吲哚胺2,3-双加氧酶(IDO)m RNA转录水平,Western blot法检测IDO蛋白表达,ELISA法检测血清IL-12p70、IL-6蛋白水平。结果:与正常妊娠妇女比较,URSA患者外周血CD11c+HLA-DR+、CD11c+CD80+、CD11c+CD86+细胞比例表达显著升高(P<0.05),HLA-DR、CD80、CD86 m RNA转录水平显著升高(P<0.05),IDO m RNA及蛋白表达明显降低(P<0.05),血清IL-12p70、IL-6蛋白水平显著升高(P<0.01)。与寿胎丸治疗前比较,治疗后URSA患者外周血CD11c+HLA-DR+、CD11c+CD80+、CD11c+CD86+细胞比例及HLA-DR、CD80、CD86 m RNA转录水平表达显著降低(P<0.05),IDO m RNA及蛋白表达明显升高(P<0.05),血清IL-12p70、IL-6蛋白水平显著降低(P<0.01)。结论:URSA患者存在DC数量与功能改变,补肾安胎中药复方寿胎丸能调节DC功能,诱导母胎免疫耐受,治疗URSA。
Recently,a major challenge in nanomedicine for cancer drug delivery is to engineer nanostructures which can efficiently load drugs with high concentration,cross the cell membrane,and controllably release the cargos at...
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Recently,a major challenge in nanomedicine for cancer drug delivery is to engineer nanostructures which can efficiently load drugs with high concentration,cross the cell membrane,and controllably release the cargos at the target ***,we report a classes of smart nanocarriers based on mesoporous silica nanoparticles(MSNs) and PAMAM to achieving high targeting specificity and delivery efficiency,avoiding nonspecific binding and entrapment by the body's *** is studied,silica-based DDS suffer from poor pharmacokinetics,short blood circulation half-lives,and accumulation in capillary ***,we modified the MSNs with polyacrylic acid(PAA) shorted as PAA-MSNs,realized pH-responsive controlled release in cancer *** further improve water suspensibility,decreased nonspecific protein binding and enhance specific affinity,we coated PAA-MSNs with a glioma targeting peptides(Angiopep-2) modified lipid *** smart nanocarriers deliver the Arsenic trioxide(ATO,AsO) to the targeting region successfully and show stronger antitumor activity and lower toxicity than *** another,as to PAMAM-based DDS,we constructed different PEGylation degree of G5-PAMAM which were also conjugated the targeting ligand of angiopep-2(aniopep-2-PEG-PAMAM),besides,borneol and folic acid were also used to modified PAMAM,so that another smart nanocairrer(FA-BO-PAMAM) was *** nanocarriers was proved to decrease the cytotoxicity of PAMAM and increase the transport ratio of DOX across the BBB and then to target the brain glioma,and displayed higher cell uptake,stronger growth inhibition of glioma cells,better curing effect on glioma,and improved survival time of C6 cells-implanted *** results show that these smart nanocarriers are promising drug delivery system for rumor treatment.
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