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Tuning sterol extraction kinetics yields a renal-sparing polyene antifungal

Decades of previous efforts to develop renal-sparing polyene antifungals were misguided by the classic membrane permeabilization model1. Recently, the clinically vital but also highly renal-toxic small-molecule natural product amphotericin B was instead found to kill fungi primarily by forming extramembraneous sponge-like aggregates that extract ergosterol from lipid bilayers2–6. Here we show that rapid and selective extraction of fungal ergosterol can yield potent and renal-sparing polyene antifungals. Cholesterol extraction was found to drive the toxicity of amphotericin B to human renal cells. Our examination of high-resolution structures of amphotericin B sponges in sterol-free and sterol-bound states guided us to a promising structural derivative that does not bind cholesterol and is thus renal sparing. This derivative was also less potent because it extracts ergosterol more slowly. Selective acceleration of ergosterol extraction with a second structural modification y ....

South Korea , Fungal Priority Pathogens List To Guide Research , Mcgraw Hill , Laboratory Standards Institute , Public Health Action World Organization , Clinical Pharmacology , Priority Pathogens List , Guide Research , Public Health Action , World Health Organization , Growth Design , Comprehensive Organic Synthesis , Drug Monit , Broth Dilution Antifungal Susceptibility Testing , Filamentous Fungi , Antifungal Susceptibility Testing ,

推动减污降碳协同增效 共促人与自然和谐共生_评论_中国环境

要深刻把握减污降碳协同增效的重大意义和科学内涵,完整、准确、全面贯彻新发展理念,站在构建高质量发展新格局的高度来整体谋划生态文明建设和经济社会发展,统筹污染物和温室气体协同减排,形成节约资源和保护环境的空间格局、产业结构、生产方式、生活方式,促进生态环境质量持续改善,努力建设人与自然和谐共生的现代化。
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Technology Innovation , Science Institute , Country Clean Energy , Central Committee , Order Earth , Transport Transportation , Integrated Management , Eleventh Five , Industrial Transport , Manufacturing Country , Guide Research , Sinopec Chemical ,