作者:Rosaura Padilla-Salinas、Lijun Sun、Rachel Anderson、Xikang Yang、Shuting Zhang、Zhijian J. Chen、Hang Yin
DOI:10.1021/acs.joc.9b02666
日期:2020.2.7
exists for inhibiting cGAS in cells, while others are limited by their poor cellular activity or specificity, which underscores the urgency for discovering new cGAS inhibitors. Here, we describe the development of new small-molecule human cGAS (hcGAS) inhibitors (80 compounds synthesized) with high binding affinity in vitro and cellular activity. Our studies show CU-32 and CU-76 selectively inhibit the DNA
环鸟苷单磷酸腺苷单磷酸(GMP-AMP)(cGAS)是一种胞质DNA传感器,在I型干扰素应答中起着重要作用。来自入侵微生物或自身来源的DNA触发cGAS的酶促活性。cGAS的异常激活与各种自身免疫性疾病有关。仅存在一种抑制细胞中cGAS的选择性探针,而另一些选择性探针由于其细胞活性或特异性差而受到限制,这突显了发现新的cGAS抑制剂的紧迫性。在这里,我们描述了具有高结合亲和力的体外和细胞活性的新型小分子人cGAS(hcGAS)抑制剂(合成的80种化合物)的开发。我们的研究表明CU-32和CU-76选择性抑制人细胞中的DNA途径,但对RIG-I-MAVS或Toll样受体途径没有影响。