喜讯!欣博盛ELISA试剂盒再次荣登Nature期刊!
8月15日,清华大学生物医学交叉研究院教授、北京生命科学研究所副所长邵峰院士团队在Nature期刊(IF=41.577)上在线发表了题为”Alpha-kinase 1 is a cytosolic innate immune receptor for bacterial ADP-heptose”的研究论文,首次发现并证明哺乳动物细胞质内的一个新的激酶分子ALPK1(alpha-kinase 1)可以直接和特异性识别细菌脂多糖LPS(俗称内毒素)合成的前体糖分子ADP-heptose(二磷酸腺苷庚糖),进而激活NF-κB通路介导的天然免疫炎症反应。这项研究揭示了宿主细胞内的全新激酶受体蛋白ALPK1可以识别细菌来源的ADP-heptose,代表了一种全新的、保守存在于脊椎动物中的抗细菌天然免疫模式识别通路,这一发现也丰富和改变了人们对LPS相关分子诱导炎症反应机制的认识,为开发新的免疫调节剂和疫苗佐剂提供了新的概念和方法。
本项研究发现,给小鼠直接注射ADP-heptose可以引起强烈的ALPK1依赖的炎症反应,而注射HBP则与注射生理盐水一样不能引起任何炎症反应。进一步在野生型和Alpk1基因敲除的小鼠中进行了洋葱伯克霍尔德菌(Burkholderia cenocepacia)的肺部感染实验,发现Alpk1敲除的小鼠肺部炎症反应程度更轻,同时细菌数量显著高于野生型小鼠。这一结果证实了ADP-heptose-ALPK1天然免疫信号通路在抵御细菌感染过程中发挥重要作用。该实验中使用了欣博盛Mouse IP-10/CXCL10 ELISA kit(小鼠干扰素诱导蛋白10试剂盒)来检测小鼠气囊液上清的IP-10浓度。
8月1 日,上海药物所药物制剂中心李亚平课题组在国际权威期刊Advanced Materials(IF=21.95)上发表了题为”Binary Cooperative Prodrug Nanoparticles Improve Immunotherapy by Synergistically Modulating Immune Tumor Microenvironment”的文章。此项研究创新性设计构建了一种智能前药纳米粒 (Binary cooperative prodrug nanoparticles, BCPN),实现二元协同、双管齐下高效免疫治疗肿瘤。研究发现:BCPN可以把化疗药物奥沙利铂的前药分子和IDO-1酶抑制剂NLG919的二聚体高效共递送到肿瘤组织,然后在肿瘤细胞还原环境中,前药分子被还原激活释放活性奥沙利铂和NLG919单体。奥沙利铂可刺激肿瘤细胞发生免疫性细胞死亡,提高肿瘤组织免疫原性,诱导机体对肿瘤细胞的特异性免疫反应,增加肿瘤组织内CTL的浸润,促使“冷瘤”转变为“热瘤”。NLG919可有效抑制IDO-1酶活性,缓解IDO-1酶对CTL的抑制作用,克服肿瘤抑制微环境。BCPN在4T1乳腺癌和CT26结肠癌的小鼠模型中均表现出良好的抗肿瘤转移和复发效果,该工作对发展安全高效的肿瘤免疫治疗具有重要参考价值。
本文中使用了欣博盛Mouse IFN-γ ELISA kit(小鼠γ干扰素试剂盒),分别检测了生理盐水, NLG919, OXA, NLG919+OXA, AIPN 和ASPN处理的致癌小鼠模型肿瘤组织匀浆上清液中的IFN-γ浓度。
欣博盛专注ELISA试剂盒研发和生产,自2007年推出以来,11年时间内SCI期刊文章引用超过900篇,包括Nature, PNAS, Am J Respir Crit Care Med, Advanced Materials, Cell research等国际权威期刊文章,其中Nature期刊引用文章已达4篇。欣博盛自主研发的ELISA试剂盒已超过200种,并将不断开发新产品!欣博盛始终坚持以最专业的技术支持和最高性价比,服务广大科研人员。
(部分内容选自清华新闻网和上海药物所网站)
【部分高影响因子文献引用】
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全文链接:https://www.nature.com/articles/ncomms9022
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