Findings of Holzner et al. identify the role of the lipid scramblases VMP1 and TMEM41B in WNT signaling during extra-embryonic endoderm development and characterize their distinct and overlapping functions.
Cullot et al. shows that genome editing with the DNA-PKcs inhibitor AZD7648, which enhances CRISPR-Cas9 directed homology-directed repair efficiencies, causes frequent large-scale genomic alterations. This promtes caution in deploying AZD7648, and reinforces the need to investigate multiple type of potential editig outcomes.
Stefanova et al. identified FGF receptor kinase inhibitors as broad-spectrum antiviral agents, which inhibit the early phase of the viral life cycle. Unexpectedly, their antiviral activity was largely independent of FGF receptor kinase inhibition. Rather, blockade of Src family kinases, in particular Lyn, is mainly responsible for their antiviral effect. These results suggest the poorly studied Lyn kinase as a promising target for the treatment of viral infections.