Collaborative Research and Licensing Opportunity: A second CD4-binding region of HIV-1 gp120 critical for viral infectivity: new methods for treatment and vaccine development
NIAID researchers have discovered a new critical component of the CD4-binding site in gp120, named CD4-BS2, which is exclusively formed in the trimeric envelope conformation.
It is believed that immunization with an effective immunogen based on the HIV-1 envelope glycoprotein can elicit a neutralizing antibody response, which may be protective against HIV-1 infection. NIAID researchers have discovered a new critical component of the CD4-binding site in gp120, named CD4-BS2, which is exclusively formed in the trimeric envelope conformation. It was further found that this newly recognized region is critical for the progression of the fusogenic mechanism that leads to HIV-1 entry and infection of the cells. This discovery may lead to new methods of treatment, for treating HIV-1, as well as to the production of new vaccine immunogens.
Potential Commercial Applications: New target for HIV therapeutic and vaccine development
Competitive Advantages: A new molecular target discovered in this invention may facilitate the development of next-generation HIV therapeutics and vaccines
Development Stage: Proof-of-concept studies demonstrate that CD4 binding to CD4-BD2 is critical for triggering gp120 conformational changes that enable coreceptor binding and HIV-1 infectivity. Animal studies are ongoing.
Inventors: Paolo Lusso and Qingbo Liu, NIAID, NIH
Publications: Liu, Qingbo, et al. “Quaternary contact in the initial interaction of CD4 with the HIV-1 envelope trimer." Nature Structural & Molecular Biology (2017).
Intellectual Property: HHS Reference No. E-230-2015/0 - US Patent Application No. 62/292,750 filed 02/08/2016; PCT Application No. PCT/US2017/017038 filed 02/08/2017.
Licensing and Collaborative Research Opportunity:The Technology Transfer and Intellectual Property Office (TTIPO) is seeking parties interested in licensing or collaborative research to further co-develop this technology. For opportunities, please contact Chris Kornak, 240-627-3705, firstname.lastname@example.org