%0 Journal Article %T Immune System Regulation in the Induction of Broadly Neutralizing HIV-1 Antibodies %A Garnett Kelsoe %A Laurent Verkoczy %A Barton F. Haynes %J Vaccines %D 2014 %I MDPI AG %R 10.3390/vaccines2010001 %X In this brief review, we discuss immune tolerance as a factor that determines the magnitude and quality of serum antibody responses to HIV-1 infection and vaccination in the context of recent work. We propose that many conserved, neutralizing epitopes of HIV-1 are weakly immunogenic because they mimic host antigens. In consequence, B cells that strongly bind these determinants are removed by the physiological process of immune tolerance. This structural mimicry may represent a significant impediment to designing protective HIV-1 vaccines, but we note that several vaccine strategies may be able to mitigate this evolutionary adaptation of HIV and other microbial pathogens. %K HIV-1 vaccines %K immune tolerance %K broadly neutralizing antibody %K B-cell lineage design %K HIV-1 vaccine strategy %U http://www.mdpi.com/2076-393X/2/1/1