IL-21 is associated with natural resistance to HIV-1 infection in a Colombian HIV exposed seronegative cohort

Publication date: Available online 7 December 2019Source: Microbes and InfectionAuthor(s): Paula Andrea Serna Ortega, Wbeimar Aguilar-Jimenez, Lizdany Florez-Álvarez, Daria Trabattoni, Maria Teresa Rugeles, Mara BiasinAbstractHigher IL-21 levels were associated with natural resistance to HIV infection in an Italian cohort. Thus we wanted to confirm such association in HIV exposed seronegative individuals (HESN) from Colombia. Cells from HESN were less susceptible to infection and expressed higher IL-21 mRNA levels than healthy controls at both baseline and 7-days post-infection; similar results were observed for IL-6, perforin, and granzyme. These results suggest that IL-21/IL-6 increase may be a distinctive quality in the profile of HIV-1 resistance, at least during sexual exposure. However, further studies are necessary to confirm the specific protection mechanisms of these cytokines.
Source: Microbes and Infection - Category: Infectious Diseases Source Type: research