Review Article

HIV Vaccine: Recent Advances, Current Roadblocks, and Future Directions

Table 3

Examples of viral vectors and alternative HIV vaccine delivery systems.

Examples of vectorsExamples of vaccine

Nonreplicating adenovirus vectors (Ad) Mixture of 4 rAd5 vectors that express HIV-1 subtype B Gag-Pol fusion protein and envelope (Env) from subtypes A, B, and C

Adeno-associated virus (AAV)Adeno-associated virus based HIV-1 subtype C vaccine (tgAAC09)

Venezuelan equine encephalitis virus (VEE) Sindbis virus (SIN)Recombinant trimeric HIVΔV2gp140Env protein

Herpes virus (HSV)Recombinant herpes simplex virus (HSV) envelope and Nef antigens of simian immunodeficiency virus

Measles virus (MV)Recombinant measles virus vaccines expressing HIV-1 clade B envelope glycoprotein

Modified vaccinia virus Ankara (MVA)Modified vaccinia virus Ankara-vectored HIV-1 clade A vaccine

Vesicular stomatitis virus (VSV)Recombinant vesicular stomatitis virus- (rVSV-) based vectors expressing HIV-1 env 89.6P gp160

Canarypox (ALVAC)HIV-1 canarypox vaccine (vCP1452)

Semliki forest virus (SFV)Self-amplifying rSFV2gen RNA encoding HIV-1C antigens

DNA vectorsHIV-1 env/rev DNA vaccine

mRNA vectorsMS2 VLP-mediated RNA vaccine

NanoformulationsFullerenol: nanoformulation of virus sized nanoparticles with dual-function nanoadjuvants to simulate immune responses to the HIV DNA vaccine