目的探究血清晚期糖基化终产物受体(RAGE)、高迁移率族蛋白B1(high mobility group protein B1,HMGB1)水平与重症肺炎(SP)急性呼吸窘迫综合征(ARDS)发病及γ-干扰素(IFN-γ)/白细胞介素4(IL-4)变化的关系。方法前瞻性选取2020年3月至202...目的探究血清晚期糖基化终产物受体(RAGE)、高迁移率族蛋白B1(high mobility group protein B1,HMGB1)水平与重症肺炎(SP)急性呼吸窘迫综合征(ARDS)发病及γ-干扰素(IFN-γ)/白细胞介素4(IL-4)变化的关系。方法前瞻性选取2020年3月至2022年2月我院收治的100例SP患儿为研究对象,根据患儿是否发生继发性ARDS将患儿分为ARDS组(n=56)和对照组(n=44),收集患儿一般资料,采集外周血以酶联免疫吸附法进行RAGE、HMGB1、IFN-γ和IL-4表达水平检测,采用多因素logistic回归分析SP患儿继发ARDS的影响因素,采用Pearson相关性分析其与IFN-γ/IL-4的相关性,并采用受试者工作曲线(ROC)分析RAGE、HMGB1表达对SP患儿继发ARDS的预测价值。结果两组SP患儿性别、年龄、体温以及发病季节之间无显著差异,ARDS组致病菌种类多于对照组,PaO_(2)/FiO_(2)和APS评分、血清RAGE、HMGB1、IFN-γ和IL-4表达水平以及IFN-γ/IL-4比值均高于对照组(P<0.05)。经多因素logistic回归分析可知,致病菌种类、PaO_(2)/FiO_(2)、RAGE、HMGB1表达、IFN-γ、IL-4和IFN-γ/IL-4均为SP患儿继发ARDS的影响因素。经Pearson相关检验,SP患儿血清RAGE、HMGB1表达水平与IFN-γ、IL-4和IFN-γ/IL-4均呈正相关(P<0.05)。经ROC曲线分析可得,血清RAGE、HMGB1水平预测SP患儿发生ARDS的AUC分别为0.707和0.750,灵敏度分别为73.2%、64.3%,特异度分别为68.2%、77.3%,两者联合预测的AUC为0.848,灵敏度和特异度分别为80.4%和81.8%。结论SP继发ARDS患儿血清中RAGE、HMGB1表达水平较高,与IFN-γ/IL-4呈正相关,监测患儿血清RAGE、HMGB1表达对SP患儿继发ARDS的风险有一定的预测价值。展开更多
Thichosanthin (TCS) is a potent allergen to mice. According to our previous experiments, it could bring out the IgE response to ovabumin (OVA) if TCS was given one day before OVA immunization, while OVA alone could no...Thichosanthin (TCS) is a potent allergen to mice. According to our previous experiments, it could bring out the IgE response to ovabumin (OVA) if TCS was given one day before OVA immunization, while OVA alone could not induce IgE to it. In this work, the kinetics of interleukin 4(IL-4) and interferon γ(IFN-γ) gene expression in the mesenteric lymph node (MLN) of TCS-immunized mice was investigated using a semi-quantitative RT-PCR method. It indicated that TCS induced significant IL-4gene expression and the peaks of IL4 gene expression were on day one after TCS immunization in both primary and secondary response. In contrast, the IFN-γ gene expression was suppressed. Furthermore, the IL-4 gene expression in the secondary response was lower than that in the primary response. Thus the presence of IgE rpemory B cells were studied. Results showed that the amount of mature IgE mRNA arose significantly and rapidly one day after TCS restimulation, while in the MLN of the mice primed 30 days before and without boost, it was almost as the same amount of the unimmunized control. These findings suggest the existence of the IgE memory B cells in the mice after the primary TCS immunization.展开更多
Objective: To investigate the role of IL-2, IL-4, IL-10 and IFN-γ cytokines in the microenvironment of cervical intraepithelial neoplasia. Methods: 180 patients participating were enrolled in this trial, where 50 cas...Objective: To investigate the role of IL-2, IL-4, IL-10 and IFN-γ cytokines in the microenvironment of cervical intraepithelial neoplasia. Methods: 180 patients participating were enrolled in this trial, where 50 cases are in control group, 50 cases are in low-grade squamous intraepithelial lesion (LSIL) group, 50 cases are in high-grade squamous intraepithelial lesion (HSIL) group, and 30 cases have cervical carcinoma. ELISA methods are used to detect the expression of IL-2, IL-4, IL-10 and IFN-γ in the lavage fluid, and all data is analyzed using one-way analysis of variance. Results: The expression of IL-2 and IFN-γ in cervical lavage fluid gradually decreases with the aggravation of the lesion. The expression of IL-4 and IL-10 increases by the aggravation of pathological changes. There were statistically significant differences in IL-2 level among the four groups. IFN-γ levels are significantly different between the cervical cancer group and the other groups, also between HSIL and LSIL group, and between HSIL and the control group, but no statistically significant difference was observed in IFN-γ e between LSIL and the control group. The expressions of IL-4 and IL-10 between the cervical cancer group and the other groups were significantly different, and also between HSIL and the control group. But there was no statistically significant difference between LSIL and the control group, HSIL and LSIL. Conclusion: The cytokines of IL-2, IL-4, IL-10 and IFN-γ in the microenvironment of the cervix play an important role in the occurrence and development of cervical intraepithelial neoplasia. This study may provide the evidence for diagnosis and treatment of cervical intraepithelial neoplasia.展开更多
研究早孕期弓形虫感染对Wistar大鼠胎盘IL-4、IL-10及IFN-γ表达水平的变化,从而探讨弓形虫感染致不良妊娠的分子免疫学机制。将Wistar孕鼠随机分为2组:①对照组12只;②早孕感染组12只。早孕感染组每只孕鼠于妊娠第5天腹腔注射1×10...研究早孕期弓形虫感染对Wistar大鼠胎盘IL-4、IL-10及IFN-γ表达水平的变化,从而探讨弓形虫感染致不良妊娠的分子免疫学机制。将Wistar孕鼠随机分为2组:①对照组12只;②早孕感染组12只。早孕感染组每只孕鼠于妊娠第5天腹腔注射1×105个弓形虫强毒株(RH株)速殖子,对照组不做任何处理。所有孕鼠均于孕19 d颈椎分离处死,无菌获取胎盘,采用实时荧光定量聚合酶链式反应(real-ti me PCR)及酶联免疫吸附测定(ELISA)检测其胎盘IL-4、IL-10及IFN-γ mRNA及蛋白表达水平的变化。结果:①实验组与对照组IL-4、IL-10及IFN-γmRNA相对表达水平分别为(0.006±0.010)、(0.119±0.080)、(0.82±0.354)和(0.596±0.444)、(0.478±0.224)、(0.297±0.180),三者之间均具有显著性差异(P<0.01);②实验组与对照组IL-4、IL-10及IFN-γ蛋白表达水平分别为(4.63±1.26)、(239.24±83.16)、(105.47±67.88)和(2.40±1.33)、(103.03±79.72)、(208.02±74.95),三者之间均具有显著性差异(P<0.01)、(P<0.05)、(P<0.05);③实验组与对照组mRNA水平IFN-γ/IL-4、IFN-γ/IL-10分别为(390.67±264.12)(37.65±21.10)和(1.31±0.96)、(0.79±0.60)两者之间均具有显著性差异(P<0.01);④实验组与对照组蛋白水平IFN-γ/IL-4、IFN-γ/IL-10分别为(176.51±212.95)、(7.26±8.81)和(23.09±12.95)、(0.44±0.21)。两者之间均具有显著性差异(P<0.01)、(P<0.05)。大鼠早孕期弓形虫感染后,胎盘局部Th1型细胞因子表达增高,Th2型细胞因子表达降低,打破了正常妊娠所需的Th1/Th2平衡状态,使平衡倾向于Th1,可能是弓形虫孕期感染致不良妊娠的重要分子机制之一。展开更多
文摘目的探究血清晚期糖基化终产物受体(RAGE)、高迁移率族蛋白B1(high mobility group protein B1,HMGB1)水平与重症肺炎(SP)急性呼吸窘迫综合征(ARDS)发病及γ-干扰素(IFN-γ)/白细胞介素4(IL-4)变化的关系。方法前瞻性选取2020年3月至2022年2月我院收治的100例SP患儿为研究对象,根据患儿是否发生继发性ARDS将患儿分为ARDS组(n=56)和对照组(n=44),收集患儿一般资料,采集外周血以酶联免疫吸附法进行RAGE、HMGB1、IFN-γ和IL-4表达水平检测,采用多因素logistic回归分析SP患儿继发ARDS的影响因素,采用Pearson相关性分析其与IFN-γ/IL-4的相关性,并采用受试者工作曲线(ROC)分析RAGE、HMGB1表达对SP患儿继发ARDS的预测价值。结果两组SP患儿性别、年龄、体温以及发病季节之间无显著差异,ARDS组致病菌种类多于对照组,PaO_(2)/FiO_(2)和APS评分、血清RAGE、HMGB1、IFN-γ和IL-4表达水平以及IFN-γ/IL-4比值均高于对照组(P<0.05)。经多因素logistic回归分析可知,致病菌种类、PaO_(2)/FiO_(2)、RAGE、HMGB1表达、IFN-γ、IL-4和IFN-γ/IL-4均为SP患儿继发ARDS的影响因素。经Pearson相关检验,SP患儿血清RAGE、HMGB1表达水平与IFN-γ、IL-4和IFN-γ/IL-4均呈正相关(P<0.05)。经ROC曲线分析可得,血清RAGE、HMGB1水平预测SP患儿发生ARDS的AUC分别为0.707和0.750,灵敏度分别为73.2%、64.3%,特异度分别为68.2%、77.3%,两者联合预测的AUC为0.848,灵敏度和特异度分别为80.4%和81.8%。结论SP继发ARDS患儿血清中RAGE、HMGB1表达水平较高,与IFN-γ/IL-4呈正相关,监测患儿血清RAGE、HMGB1表达对SP患儿继发ARDS的风险有一定的预测价值。
文摘Thichosanthin (TCS) is a potent allergen to mice. According to our previous experiments, it could bring out the IgE response to ovabumin (OVA) if TCS was given one day before OVA immunization, while OVA alone could not induce IgE to it. In this work, the kinetics of interleukin 4(IL-4) and interferon γ(IFN-γ) gene expression in the mesenteric lymph node (MLN) of TCS-immunized mice was investigated using a semi-quantitative RT-PCR method. It indicated that TCS induced significant IL-4gene expression and the peaks of IL4 gene expression were on day one after TCS immunization in both primary and secondary response. In contrast, the IFN-γ gene expression was suppressed. Furthermore, the IL-4 gene expression in the secondary response was lower than that in the primary response. Thus the presence of IgE rpemory B cells were studied. Results showed that the amount of mature IgE mRNA arose significantly and rapidly one day after TCS restimulation, while in the MLN of the mice primed 30 days before and without boost, it was almost as the same amount of the unimmunized control. These findings suggest the existence of the IgE memory B cells in the mice after the primary TCS immunization.
文摘Objective: To investigate the role of IL-2, IL-4, IL-10 and IFN-γ cytokines in the microenvironment of cervical intraepithelial neoplasia. Methods: 180 patients participating were enrolled in this trial, where 50 cases are in control group, 50 cases are in low-grade squamous intraepithelial lesion (LSIL) group, 50 cases are in high-grade squamous intraepithelial lesion (HSIL) group, and 30 cases have cervical carcinoma. ELISA methods are used to detect the expression of IL-2, IL-4, IL-10 and IFN-γ in the lavage fluid, and all data is analyzed using one-way analysis of variance. Results: The expression of IL-2 and IFN-γ in cervical lavage fluid gradually decreases with the aggravation of the lesion. The expression of IL-4 and IL-10 increases by the aggravation of pathological changes. There were statistically significant differences in IL-2 level among the four groups. IFN-γ levels are significantly different between the cervical cancer group and the other groups, also between HSIL and LSIL group, and between HSIL and the control group, but no statistically significant difference was observed in IFN-γ e between LSIL and the control group. The expressions of IL-4 and IL-10 between the cervical cancer group and the other groups were significantly different, and also between HSIL and the control group. But there was no statistically significant difference between LSIL and the control group, HSIL and LSIL. Conclusion: The cytokines of IL-2, IL-4, IL-10 and IFN-γ in the microenvironment of the cervix play an important role in the occurrence and development of cervical intraepithelial neoplasia. This study may provide the evidence for diagnosis and treatment of cervical intraepithelial neoplasia.
文摘研究早孕期弓形虫感染对Wistar大鼠胎盘IL-4、IL-10及IFN-γ表达水平的变化,从而探讨弓形虫感染致不良妊娠的分子免疫学机制。将Wistar孕鼠随机分为2组:①对照组12只;②早孕感染组12只。早孕感染组每只孕鼠于妊娠第5天腹腔注射1×105个弓形虫强毒株(RH株)速殖子,对照组不做任何处理。所有孕鼠均于孕19 d颈椎分离处死,无菌获取胎盘,采用实时荧光定量聚合酶链式反应(real-ti me PCR)及酶联免疫吸附测定(ELISA)检测其胎盘IL-4、IL-10及IFN-γ mRNA及蛋白表达水平的变化。结果:①实验组与对照组IL-4、IL-10及IFN-γmRNA相对表达水平分别为(0.006±0.010)、(0.119±0.080)、(0.82±0.354)和(0.596±0.444)、(0.478±0.224)、(0.297±0.180),三者之间均具有显著性差异(P<0.01);②实验组与对照组IL-4、IL-10及IFN-γ蛋白表达水平分别为(4.63±1.26)、(239.24±83.16)、(105.47±67.88)和(2.40±1.33)、(103.03±79.72)、(208.02±74.95),三者之间均具有显著性差异(P<0.01)、(P<0.05)、(P<0.05);③实验组与对照组mRNA水平IFN-γ/IL-4、IFN-γ/IL-10分别为(390.67±264.12)(37.65±21.10)和(1.31±0.96)、(0.79±0.60)两者之间均具有显著性差异(P<0.01);④实验组与对照组蛋白水平IFN-γ/IL-4、IFN-γ/IL-10分别为(176.51±212.95)、(7.26±8.81)和(23.09±12.95)、(0.44±0.21)。两者之间均具有显著性差异(P<0.01)、(P<0.05)。大鼠早孕期弓形虫感染后,胎盘局部Th1型细胞因子表达增高,Th2型细胞因子表达降低,打破了正常妊娠所需的Th1/Th2平衡状态,使平衡倾向于Th1,可能是弓形虫孕期感染致不良妊娠的重要分子机制之一。
