目的研究红色毛癣菌对人角质形成细胞模式识别受体TLR-2,TLR-4,Dectin-1表达及细胞因子分泌的影响,探讨角质形成细胞对红色毛癣菌的免疫应答及其机制。方法红色毛癣菌孢子与人永生化表皮细胞株HaCaT细胞共培养,采用Real time PCR检测共...目的研究红色毛癣菌对人角质形成细胞模式识别受体TLR-2,TLR-4,Dectin-1表达及细胞因子分泌的影响,探讨角质形成细胞对红色毛癣菌的免疫应答及其机制。方法红色毛癣菌孢子与人永生化表皮细胞株HaCaT细胞共培养,采用Real time PCR检测共培养后HaCaT细胞TLR-2,TLR-4,Dectin-1mRNA的表达情况;采用流式细胞技术检测共培养后不同时间段HaCaT细胞TLR-2,TLR-4及Dectin-1平均荧光强度;采用蛋白芯片抗体阵列检测共培养上清液中36种不同的细胞因子,趋化因子和急性时相蛋白的表达情况。结果共培养6 h后,TLR-2,TLR-4,Dectin-1mRNA表达上调;共培养量明24显h增后加TL。R结-2,论T L人R角-4,质D形ec成tin细-1胞平对均红荧色光毛强癣度菌增的高免,细疫胞识因别子和I应L-答8,,I在-30一9,定IF程N-度γ,上IL可-6通,IL过-1上3调在红Ha色Ca毛T癣细菌胞刺中激模后式分识泌别受体TLR-2,TLR-4及Dectin-1后分泌多种细胞因子来实现。展开更多
Sepsis is systemic inflammatory response syndrome(SIRS)associated with the presence of pathogenic microorganisms or their toxin.Lipopolysaccharide(LPS)is an important component of the outer membrane of Gram negative b...Sepsis is systemic inflammatory response syndrome(SIRS)associated with the presence of pathogenic microorganisms or their toxin.Lipopolysaccharide(LPS)is an important component of the outer membrane of Gram negative bacteria and has a pivotal role in inducing Gram negative sepsis.Macrophages play an essential role in infection and inflammation.Specific recognition of LPS is of particular importance in the defense system and pattern recognition receptors(PRR)have been considered to be important in initial steps for cellular recognition of LPS and consequence initiation of LPS responses.In the past few years,intense research in the fields of PRR and their recognition mechanism has been achieved.In this review,we attempt to expound recent research advances of macrophage PRRs for LPS recognition and their mechanism.展开更多
探讨抗性/易感小鼠DNA识别受体的组织表达差异与抗病性的关系。方法不同抗性品系小鼠感染ECTV后,采用实时荧光定量PCR(qRT-PCR)技术分析其组织的重要DNA识别受体差异表达谱。结果TLR9、DAI、cGAS、RNA pol III和RIG-I这5个与DNA识别相...探讨抗性/易感小鼠DNA识别受体的组织表达差异与抗病性的关系。方法不同抗性品系小鼠感染ECTV后,采用实时荧光定量PCR(qRT-PCR)技术分析其组织的重要DNA识别受体差异表达谱。结果TLR9、DAI、cGAS、RNA pol III和RIG-I这5个与DNA识别相关的受体在不同抗性小鼠组织中均呈广泛性表达,但鼠痘抗性小鼠C57BL/6品系的表达明显整体高于BALB/c小鼠;在ECTV感染后易感小鼠BALB/c品系的这些基因表达明显上调,而C57BL/6小鼠变化不大甚至下调。结论这种差异表达特征表明这些受体分子可能与小鼠的天然抗病力密切相关。展开更多
文摘目的研究红色毛癣菌对人角质形成细胞模式识别受体TLR-2,TLR-4,Dectin-1表达及细胞因子分泌的影响,探讨角质形成细胞对红色毛癣菌的免疫应答及其机制。方法红色毛癣菌孢子与人永生化表皮细胞株HaCaT细胞共培养,采用Real time PCR检测共培养后HaCaT细胞TLR-2,TLR-4,Dectin-1mRNA的表达情况;采用流式细胞技术检测共培养后不同时间段HaCaT细胞TLR-2,TLR-4及Dectin-1平均荧光强度;采用蛋白芯片抗体阵列检测共培养上清液中36种不同的细胞因子,趋化因子和急性时相蛋白的表达情况。结果共培养6 h后,TLR-2,TLR-4,Dectin-1mRNA表达上调;共培养量明24显h增后加TL。R结-2,论T L人R角-4,质D形ec成tin细-1胞平对均红荧色光毛强癣度菌增的高免,细疫胞识因别子和I应L-答8,,I在-30一9,定IF程N-度γ,上IL可-6通,IL过-1上3调在红Ha色Ca毛T癣细菌胞刺中激模后式分识泌别受体TLR-2,TLR-4及Dectin-1后分泌多种细胞因子来实现。
文摘Sepsis is systemic inflammatory response syndrome(SIRS)associated with the presence of pathogenic microorganisms or their toxin.Lipopolysaccharide(LPS)is an important component of the outer membrane of Gram negative bacteria and has a pivotal role in inducing Gram negative sepsis.Macrophages play an essential role in infection and inflammation.Specific recognition of LPS is of particular importance in the defense system and pattern recognition receptors(PRR)have been considered to be important in initial steps for cellular recognition of LPS and consequence initiation of LPS responses.In the past few years,intense research in the fields of PRR and their recognition mechanism has been achieved.In this review,we attempt to expound recent research advances of macrophage PRRs for LPS recognition and their mechanism.
文摘探讨抗性/易感小鼠DNA识别受体的组织表达差异与抗病性的关系。方法不同抗性品系小鼠感染ECTV后,采用实时荧光定量PCR(qRT-PCR)技术分析其组织的重要DNA识别受体差异表达谱。结果TLR9、DAI、cGAS、RNA pol III和RIG-I这5个与DNA识别相关的受体在不同抗性小鼠组织中均呈广泛性表达,但鼠痘抗性小鼠C57BL/6品系的表达明显整体高于BALB/c小鼠;在ECTV感染后易感小鼠BALB/c品系的这些基因表达明显上调,而C57BL/6小鼠变化不大甚至下调。结论这种差异表达特征表明这些受体分子可能与小鼠的天然抗病力密切相关。
