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Antiviral Activity and Crystal Structures of HIV-1 gp120 Antagonistsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Curreli Francesca, Kwon Young D., Nicolau Isabella, Burgos Giancarla, Altieri Andrea, Kurkin Alexander V., Verardi Raffaello, Kwong Peter D., Debnath Asim K.
- Журнал: International Journal of Molecular Sciences
- Том: 23
- Номер: 24
- Год издания: 2022
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 15999
- DOI: 10.3390/ijms232415999
- Аннотация: As part of our effort to discover drugs that target HIV-1 entry, we report the antiviralactivity and crystal structures of two novel inhibitors in a complex with a gp120 core. NBD-14204 showed similar antiviral activity against all the clinical isolates tested. The IC50 values were in the range of 0.24–0.9 µM with an overall mean of 0.47 ± 0.03 µM, showing slightly better activity againstthe clinical isolates than against the lab-adapted HIV-1HXB2 (IC50 = 0.96 ± 0.1 µM). Moreover, the antiviral activity of NBD-14208 was less consistent, showing a wider range of IC50 values (0.66–5.7 µM) with an overall mean of 3 ± 0.25 µM and better activity against subtypes B and D (Mean IC50 2.2–2.5 µM) than the A, C and Rec viruses (Mean IC50 2.9–3.9 µM). SI of NBD-14204 was about 10-foldhigher than NBD-14208, making it a better lead compound for further optimization. In addition, we tested these compounds against S375Y and S375H mutants of gp120, which occurred in some clades and observed these to be sensitive to NBD-14204 and NBD-14208. These inhibitors also showed modest activity against HIV-1 reverse transcriptase. Furthermore, we determined the crystal structures of both inhibitors in complexes with gp120 cores. As expected, both NBD-14204 and NBD14208 bind primarily within the Phe43 cavity. It is noteworthy that the electron density of the thiazole ring in both structures was poorly defined due to the flexibility of this scaffold, suggesting that these compounds maintain substantial entropy, even when bound to the Phe43 cavity.
- Добавил в систему: Куркин Александр Витальевич