Antibody immunoprophylaxis for HIV-1 will require effective concentration of biologics at mucosal sites of exposure for effectivity. Here the authors show that infused Fc-modified VRC01LS antibody has increased levels in blood, in the female genital tract and male rectal tissue, compared to native antibody VRC01. VRC01LS is detectable for more than year at the sites of sexual HIV transmission.
- Maria P. Lemos
- Rena D. Astronomo
- M. Juliana McElrath