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Discovery of a Small Molecule Inhibitor of Human Adenovirus Capable of Preventing Escape from the Endosome.


ABSTRACT: 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 salicylamide 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.

SUBMITTER: Xu J 

PROVIDER: S-EPMC7915867 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Discovery of a Small Molecule Inhibitor of Human Adenovirus Capable of Preventing Escape from the Endosome.

Xu Jimin J   Berastegui-Cabrera Judith J   Carretero-Ledesma Marta M   Chen Haiying H   Xue Yu Y   Wold Eric A EA   Pachón Jerónimo J   Zhou Jia J   Sánchez-Céspedes Javier J  

International journal of molecular sciences 20210205 4


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 salicylamide derivatives and discover compound <b>16</b> (JMX0493) as a potent inhibitor of HAdV infection. Compound <b>16</b> displays s  ...[more]

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