Design, synthesis and systematic evaluation of all possible cyclic dinucleotides (CDNs) that activate human stimulator of interferon genes (STING) variants
作者:Zheng-Hua Wang、Can-Can Zhao、Qiang-Zhe Zhang、Chuan-Lin Wang、Hang Zhang、De-Jun Ma、Da-Wei Wang、Xin Wen、Lu-Yuan Li、Zhen Xi
DOI:10.1007/s11426-019-9662-5
日期:2020.4
activate stimulator of interferon genes (STING) and induce type I interferon responses, therefor possess great potentials to be of immunotherapeutic value for cancers and infectious diseases. However, the existence of different single nucleotide polymorphism (SNP) of human STING (hSTING) gene poses an obstacle to achieve broad-spectrum activation by CDNs. We reported here the design and synthesis of a
摘要 已知环二核苷酸(CDN)可激活干扰素基因的刺激物(STING)并诱导I型干扰素应答,因此具有巨大的潜力,对癌症和传染病具有免疫治疗价值。然而,人类STING(hSTING)基因的不同单核苷酸多态性(SNP)的存在构成了通过CDN实现广谱激活的障碍。我们在这里报告了总共36个CDN的设计和合成,这些CDN代表所有结构变异,其中包含四个碱基(A,G,C,U)和两个链接方向(2'-5'-链接和3'-5') -连接的磷酸二酯)。通过双萤光素酶报告基因检测系统评估IFN-β诱导,我们发现野生型hSTING和两个同工型(HAQ和AQ)表现出强烈的反应,而hSTING-R232H和R293Q表现出对CDNs刺激的相对较弱的反应。首次,我们发现c [G(2',5')U(2',5')]对所有五个hSTING变体均表现出优异的活性,甚至等同于内源性配体c [G(2',5 ′)A(3′,5′)]。此外,我