Last week, the 2024 meeting of the International AIDS Society (IAS) was wrapping up as the 2024 Olympic Games were about to begin. That timing was probably what prompted the use of multiple sports analogies at Thursday’s plenary session on HIV prevention strategies. Given the decades-long attempts at developing an HIV vaccine, Peter Piot, past IAS president and director emeritus and professor at the London School of Hygiene and Tropical Medicine, said in his introduction: “This is clearly a marathon. But marathons also finish.”
The 2024 meeting of the International AIDS Society (IAS) is wrapping up as the 2024 Olympic Games are about to begin. That timing was probably what prompted the use of multiple sports analogies at Thursday’s plenary session on HIV prevention strategies. Given the decades-long attempts at developing an HIV vaccine, Peter Piot, past IAS president and director emeritus and professor at the London School of Hygiene and Tropical Medicine, said in his introduction: “This is clearly a marathon. But marathons also finish.”
Researchers at The Scripps Research Institute and the IAVI Neutralizing Antibody Center are developing a novel experimental vaccine targeting the germline to stimulate precursor B cells and produce broadly neutralizing antibodies (bnAbs) against the membrane-proximal external region (MPER) of the gp41 protein found in the HIV-1 envelope.
In a paper published in the May 17, 2024, online issue of Cell, investigators from the Duke Human Vaccine Institute reported that a sequence of three immunizations in the HVTN-133 trial was sufficient for the development of heterologous or broadly neutralizing antibodies that protected against several strains of HIV.
In a paper published in the May 17, 2024, online issue of Cell, investigators from the Duke Human Vaccine Institute reported that a sequence of three immunizations in the HVTN-133 trial was sufficient for the development of heterologous or broadly neutralizing antibodies (bnAbs) that protected against several strains of HIV. The findings are “a real beachhead,” Barton Haynes told BioWorld. Haynes is the director of the Duke Human Vaccine Institute and the senior author of the paper.
Novel HIV-1 vaccine strategies should elicit potent and broad immunity against the viral envelope (Env) glycoprotein. Particle presentation of Env has shown promise in animal studies, but has several problems that limit their clinical application.
Overall, the story of HIV is one of astounding success. But to declare victory, it will be necessary to develop a vaccine. The opening session of the 31st Conference on Retroviruses and Opportunistic Infections (CROI) 2024 looked back to the failures but also the advances in research, all the steps that over the years brought the basic science knowledge that could bring an HIV vaccine in the future. This year, the former director of the Viral Pathogenesis Laboratory at the NIAID Vaccine Research Center, Barney Graham, was named for the Bernard Field Lecture, where he presented “Modern vaccinology: a legacy of HIV research.”
Reithera Srl, The Ragon Institute of Mass General, MIT and Harvard, and IAVI have established a collaboration to develop a novel HIV vaccine candidate based on gorilla adenoviral vector (GRAd), with funding by the Bill & Melinda Gates Foundation.
Transimmune AG has been awarded a $5 million investment from the Bill & Melinda Gates Strategic Investment Fund that will be used to leverage Transimmune’s physiologically induced dendritic cells (phDCs) to enhance the potency of mRNA vaccines in infectious diseases. The initial focus will be on a therapeutic vaccine for people with HIV.
The HIV-1 envelope glycoprotein (Env) mediates cell entry and is the target of the host humoral immune response. Functional Env is a trimer of noncovalent gp120-gp41 heterodimers. Rational trimer design has transformed the HIV-1 vaccine research field and has helped understand Env structure and immunogenicity. Uncleaved prefusion-optimized (UFO) trimers have been shown to stabilize diverse HIV-1 Env glycoproteins.
