Microscopy/spectroscopy study showing that HCQ binds to both N-terminal domain and C-terminal domain of SARS-CoV-2 nucleocapsid protein to inhibit
their interactions with nucleic acids and disrupt NA-induced liquid-liquid phase separation essential for the viral life cycle including the package of gRNA and N protein into new virions. These results suggest that HCQ may achieve its
anti-SARS-CoV-2 activity by interfering in several key steps of the viral life cycle.
Dang et al., 3/17/2021, preprint, 2 authors.
In Vitro studies are an important part of preclinical research, however results may be very different in vivo.