The development of a successful vaccine against HIV is a major global challenge. Antiretroviral therapy is the standard treatment against HIV-1 infection. However, only 46% of the eligible people received the therapy in 2015. Furthermore, suboptimal adherence poses additional obstacles. Therefore, there is an urgent need for an HIV-1 vaccine. The most promising clinical trial to date is Phase III RV144, which for the first time demonstrated the feasibility of vaccine-mediated immune protection against HIV-1. Nevertheless, its 31% efficacy and limited durability underscore major hurdles. Here, we discuss recent progress in HIV-1 vaccine development with a special emphasis on nanovaccines, which are at the forefront of efforts to develop a successful HIV-1 vaccine.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5331416 | PMC |
http://dx.doi.org/10.2217/nnm-2016-0381 | DOI Listing |
Cell Rep
January 2025
Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address:
The membrane-proximal external region (MPER) of the HIV-1 envelope is a target for broadly neutralizing antibodies (bnAbs), and vaccine-elicited MPER-directed antibodies have recently been reported from a human clinical trial. In this study, we sought to identify MPER-directed nAbs in simian immunodeficiency virus (SIV)-infected rhesus macaques. We isolated four lineages of SIV MPER-directed nAbs from two SIV-infected macaques.
View Article and Find Full Text PDFNat Commun
January 2025
Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.
The only cure of HIV has been achieved in a small number of people who received a hematopoietic stem cell transplant (HSCT) comprising allogeneic cells carrying a rare, naturally occurring, homozygous deletion in the CCR5 gene. The rarity of the mutation and the significant morbidity and mortality of such allogeneic transplants precludes widespread adoption of this HIV cure. Here, we show the application of CRISPR/Cas9 to achieve >90% CCR5 editing in human, mobilized hematopoietic stem progenitor cells (HSPC), resulting in a transplant that undergoes normal hematopoiesis, produces CCR5 null T cells, and renders xenograft mice refractory to HIV infection.
View Article and Find Full Text PDFCurr Opin HIV AIDS
January 2025
Department of Pathology and Laboratory Medicine, Emory Vaccine Center, Emory National Primate Research Center (ENPRC).
Purpose Of Review: Natural killer (NK) cells are integral components of the innate immune system, serving a vital function in eliminating virally infected cells. This review highlights the significance of CXCR5+ NK cells in the context of chronic HIV/SIV infection and viral control.
Recent Findings: Controlled HIV/SHIV infection results in a substantial increase in the population of CXCR5+ NK cells within the B-cell follicles of secondary lymphoid organs (SLOs).
Sci Transl Med
January 2025
Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA.
Elicitation of HIV broadly neutralizing antibodies (bnAbs) by vaccination first requires the activation of diverse precursors, followed by successive boosts that guide these responses to enhanced breadth through the acquisition of somatic mutations. Because HIV bnAbs contain mutations in their B cell receptors (BCRs) that are rarely generated during conventional B cell maturation, HIV vaccine immunogens must robustly engage and expand B cells with BCRs that contain these improbable mutations. Here, we engineered an immunogen that activates diverse precursors of an HIV V3-glycan bnAb and promotes their acquisition of a functionally critical improbable mutation.
View Article and Find Full Text PDFViruses
November 2024
Department of Virology & Biotechnology, ICMR-National Institute for Research in Tuberculosis, Chennai 600031, India.
The biological characteristics of early transmitted/founder (T/F) variants are crucial factors for viral transmission and constitute key determinants for the development of better therapeutics and vaccine strategies. The present study aimed to generate T/F viruses and to characterize their biological properties. For this purpose, we constructed 18 full-length infectious molecular clones (IMCs) of HIV from recently infected infants.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!