Discovery of Highly Potent and Selective Small-Molecule Reversible Factor D Inhibitors Demonstrating Alternative Complement Pathway Inhibition <i>in Vivo</i>
作者:Edwige Lorthiois、Karen Anderson、Anna Vulpetti、Olivier Rogel、Frederic Cumin、Nils Ostermann、Stefan Steinbacher、Aengus Mac Sweeney、Omar Delgado、Sha-Mei Liao、Stefan Randl、Simon Rüdisser、Solene Dussauge、Kamal Fettis、Laurence Kieffer、Andrea de Erkenez、Louis Yang、Constanze Hartwieg、Upendra A. Argikar、Laura R. La Bonte、Ronald Newton、Viral Kansara、Stefanie Flohr、Ulrich Hommel、Bruce Jaffee、Jürgen Maibaum
DOI:10.1021/acs.jmedchem.7b00425
日期:2017.7.13
lead 7 has led to the discovery of noncovalent reversible and selective human factor D (FD) inhibitors with drug-like properties. The orally bioavailable compound 2 exerted excellent potency in 50% human whole blood in vitro and blocked AP activity ex vivo after oral administration to monkeys as demonstrated by inhibition of membrane attack complex (MAC) formation. Inhibitor 2 demonstrated sustained
高特异性的S1丝氨酸蛋白酶因子D(FD)在先天免疫系统的补体替代途径(AP)的扩增中起着核心作用。人类的遗传关联暗示了AP激活与年龄相关的黄斑变性(AMD),并且AP功能障碍使个体容易患上阵发性夜间血红蛋白尿(PNH)和非典型溶血性尿毒症综合征(aHUS)等疾病。基于结构的命中鉴定和随后基于中心(S)-脯氨酸的前导物7的优化相结合,导致发现了具有药物样特性的非共价可逆和选择性人因子D(FD)抑制剂。口服可生物利用的化合物2在50%的人类全血中发挥了出色的功效口服和猴子体外给药后体外抑制AP活性,这是通过抑制膜攻击复合物(MAC)的形成证明的。在表达人FD的小鼠中,脂多糖(LPS)诱导的全身性AP活化模型中,抑制剂2表现出持续的口服和眼部功效。