The 8-bromobaicalein inhibited the replication of dengue, and Zika viruses and targeted the dengue polymerase.

ABSTRACT: Dengue and Zika viruses are mosquito-borne flaviviruses burdening millions every year with hemorrhagic fever and neurological symptoms. Baicalein was previously reported as a potential anti-flaviviral candidate and halogenation of flavones and flavanones potentiated their antiviral efficacies. Here, we reported that a chemically modified 8-bromobaicalein effectively inhibited all dengue serotypes and Zika viruses at 0.66-0.88 micromolar in cell-based system. The compound bound to dengue serotype 2 conserved pocket and inhibited the dengue RdRp activity with 6.93 fold more than the original baicalein. Moreover, the compound was mildly toxic against infant and adult C57BL/6 mice despite administering continuously for 7 days. Therefore, the 8-bromobaicalein should be investigated further in p

SUBMITTER: Boonyasuppayakorn S 

PROVIDER: S-EPMC10039358 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature