目的:克隆粉尘螨过敏原Der f 11基因,表达、纯化该蛋白,并鉴定其免疫活性。方法:人工合成粉尘螨第11组过敏原Der f 11基因,将其连接至pET-32a表达载体,用异丙基-β-D-硫代半乳糖苷(IPTG)诱导表达后,通过Ni+亲和层析纯化重组过敏原Der f...目的:克隆粉尘螨过敏原Der f 11基因,表达、纯化该蛋白,并鉴定其免疫活性。方法:人工合成粉尘螨第11组过敏原Der f 11基因,将其连接至pET-32a表达载体,用异丙基-β-D-硫代半乳糖苷(IPTG)诱导表达后,通过Ni+亲和层析纯化重组过敏原Der f 11。以粉尘螨过敏患者血清作为一抗,经Western blot方法分析Der f 11的免疫学特性。结果:获得高纯度的重组Der f 11蛋白,SDS-PAGE结果显示表达产物pET-32a(+)-Der f 11分子质量约为118 ku。重组过敏原Der f 11检测15份尘螨过敏性患者血清中特异性IgE,阳性率为20%。结论:获得的Der f 11重组蛋白具有与天然蛋白相似的免疫学活性,为标准化抗原的临床特异性诊断和治疗及进一步的实验研究奠定基础。展开更多
目的对近年来脂多糖介导的炎症疾病含半胱氨酸的天冬氨酸蛋白水解酶11(cysteinyl aspartate specific proteinase-11,caspase-11)靶点药物进行综述。方法利用PubMed、中国知网等检索平台,检索脂多糖介导的不同炎症疾病中caspase-11靶向...目的对近年来脂多糖介导的炎症疾病含半胱氨酸的天冬氨酸蛋白水解酶11(cysteinyl aspartate specific proteinase-11,caspase-11)靶点药物进行综述。方法利用PubMed、中国知网等检索平台,检索脂多糖介导的不同炎症疾病中caspase-11靶向药物并进行了归纳汇总。结果根据文献查阅发现,若caspase-11激活,可诱发白介素1β、白介素18相关的炎症反应及Gasdermin D介导的细胞焦亡,从而导致大量炎症因子释放到胞外,引发强烈的炎症反应。caspase-11介导的炎症反应在帕金森病、阿尔兹海默症、肺纤维化、内毒素血症、脓毒症等疾病的发生发展中发挥了重要作用。结论对caspase-11靶点药物的探索,可能是未来脂多糖介导的相关炎症疾病药物研究的新方向。展开更多
This study investigated the expression and distribution of 2810408A11Rik in mouse testis and sperm, and explored its role in sperrnatogenesis and sperm function. The expression levels of 2810408A11Rik mRNA in multiple...This study investigated the expression and distribution of 2810408A11Rik in mouse testis and sperm, and explored its role in sperrnatogenesis and sperm function. The expression levels of 2810408A11Rik mRNA in multiple tissue samples were analyzed using bioinformatic resources and RT-PCR technique. A specific rabbit polyclonal antibody was prepared by prokaryotic expression of 2810408A11Rik recombinant protein and utilized for animal immunization. Western blotting, immunohistochemistry and immunofluorescence were used to detect the expression and distribution of 2810408A11Rik. The results of the bioinformatic analysi and RT-PCR showed that 2810408A11Rik mRNA was specifically expressed in mouse testis, and 2810408AllRik protein included a protein phosphatase inhibitor domain. Western blotting assays, immunohistochemistry and immunofluorescence confirmed the expression of 2810408A11Rik protein in mouse testis, especially in post-meiosis round and long spermatids, and that it is localized in the acrosome and the post-nucleus area of sperm. Our findings suggest that 2810408A11Rik may play an important role in spermatogenesis, sperm capacitation and fertilization.展开更多
文摘目的:克隆粉尘螨过敏原Der f 11基因,表达、纯化该蛋白,并鉴定其免疫活性。方法:人工合成粉尘螨第11组过敏原Der f 11基因,将其连接至pET-32a表达载体,用异丙基-β-D-硫代半乳糖苷(IPTG)诱导表达后,通过Ni+亲和层析纯化重组过敏原Der f 11。以粉尘螨过敏患者血清作为一抗,经Western blot方法分析Der f 11的免疫学特性。结果:获得高纯度的重组Der f 11蛋白,SDS-PAGE结果显示表达产物pET-32a(+)-Der f 11分子质量约为118 ku。重组过敏原Der f 11检测15份尘螨过敏性患者血清中特异性IgE,阳性率为20%。结论:获得的Der f 11重组蛋白具有与天然蛋白相似的免疫学活性,为标准化抗原的临床特异性诊断和治疗及进一步的实验研究奠定基础。
文摘目的对近年来脂多糖介导的炎症疾病含半胱氨酸的天冬氨酸蛋白水解酶11(cysteinyl aspartate specific proteinase-11,caspase-11)靶点药物进行综述。方法利用PubMed、中国知网等检索平台,检索脂多糖介导的不同炎症疾病中caspase-11靶向药物并进行了归纳汇总。结果根据文献查阅发现,若caspase-11激活,可诱发白介素1β、白介素18相关的炎症反应及Gasdermin D介导的细胞焦亡,从而导致大量炎症因子释放到胞外,引发强烈的炎症反应。caspase-11介导的炎症反应在帕金森病、阿尔兹海默症、肺纤维化、内毒素血症、脓毒症等疾病的发生发展中发挥了重要作用。结论对caspase-11靶点药物的探索,可能是未来脂多糖介导的相关炎症疾病药物研究的新方向。
基金supported by the National 973 Project of China (No.2011CB944304)
文摘This study investigated the expression and distribution of 2810408A11Rik in mouse testis and sperm, and explored its role in sperrnatogenesis and sperm function. The expression levels of 2810408A11Rik mRNA in multiple tissue samples were analyzed using bioinformatic resources and RT-PCR technique. A specific rabbit polyclonal antibody was prepared by prokaryotic expression of 2810408A11Rik recombinant protein and utilized for animal immunization. Western blotting, immunohistochemistry and immunofluorescence were used to detect the expression and distribution of 2810408A11Rik. The results of the bioinformatic analysi and RT-PCR showed that 2810408A11Rik mRNA was specifically expressed in mouse testis, and 2810408AllRik protein included a protein phosphatase inhibitor domain. Western blotting assays, immunohistochemistry and immunofluorescence confirmed the expression of 2810408A11Rik protein in mouse testis, especially in post-meiosis round and long spermatids, and that it is localized in the acrosome and the post-nucleus area of sperm. Our findings suggest that 2810408A11Rik may play an important role in spermatogenesis, sperm capacitation and fertilization.
