International Journal of Molecular Sciences p. 1 - 21 (2021)
Update date:2022-08-03
Topics:
Xu, Jimin
Berastegui-Cabrera, Judith
Carretero-Ledesma, Marta
Chen, Haiying
Xue, Yu
Wold, Eric A.
Pachón, Jerónimo
Zhou, Jia
Sánchez-Céspedes, Javier
Human adenoviruses (HAdVs) display a wide range of tissue tropism and can cause an array of symptoms from mild respiratory illnesses to disseminated and life-threatening infections in immunocompromised individuals. However, no antiviral drug has been approved specifically for the treatment of HAdV infections. Herein, we report our continued efforts to optimize salicy-lamide derivatives and discover compound 16 (JMX0493) as a potent inhibitor of HAdV infection. Compound 16 displays submicromolar IC50 values, a higher selectivity index (SI > 100) and 2.5-fold virus yield reduction compared to our hit compound niclosamide. Moreover, unlike niclosamide, our mechanistic studies suggest that the antiviral activity of compound 16 against HAdV is achieved through the inhibition of viral particle escape from the endosome, which bars subsequent uncoating and the presentation of lytic protein VI.
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