Vpu protects HIV-infected cells from antibody-dependent cellular phagocytosis by counteracting tetherin.
It is found that Vpu mutations that impair tetherin antagonism also increase the susceptibility of HIV-infected cells to antibody-dependent cellular phagocytosis (ADCP), and the antiviral activity of tetherin may be amplified in vivo by Fc-mediated antibody effector functions and therefore much greater than initially a...