Vaccine elicitation of HIV-1 neutralizing antibodies against both V2 apex and fusion peptide in rhesus macaques
Broadly neutralizing antibodies (bNAbs) targeting multiple sites of HIV-1 Env vulnerability can be induced by infection, but simultaneous elicitation of bNAbs against multiple epitopes has not been achieved by vaccination. In this study, we designed a dual-epitope vaccine targeting both the fusion peptide (FP) and the V2 apex and evaluated its capacity to induce bNAbs against both epitopes in rhesus macaques. This vaccine combined an FP conjugate with a cocktail of engineered Env trimers with enhanced V2 apex recognition and increased antigen retention in lymph nodes. Macaque immunization with the dual-epitope vaccine elicited >1,000-fold higher autologous tier 2-neutralizing titers than wild-type Env trimers and enhanced heterologous neutralization. Both FP- and V2 apex-monoclonal antibodies were isolated from immunized macaques and showed heterologous neutralization with genetic and structural signatures similar to well-characterized FP and V2 apex bNAbs. These results demonstrate proof of concept for simultaneous vaccine elicitation of neutralizing antibodies against multiple sites of Env vulnerability.
Authors
- Nicholas C. Morano (ORCID: https://orcid.org/0000-0002-8129-4033)
- Madeeha Froze Mughal
- Audrey S. Carson
- G. J. Sellers
- Ninaad Lasrado (ORCID: https://orcid.org/0000-0001-6762-2654)
- Andrea Biju (ORCID: https://orcid.org/0000-0001-7405-3373)
- David J. Van Wazer (ORCID: https://orcid.org/0000-0003-4480-8282)
- Chaim A. Schramm
- Danealle K. Parchment (ORCID: https://orcid.org/0000-0002-4724-1093)
- Tyler Stephens
- Sarah Jane Smith (ORCID: https://orcid.org/0000-0002-1561-9485)
- Misook Choe
- Ryan S. Roark (ORCID: https://orcid.org/0000-0003-0586-103X)
- Yaroslav Tsybovsky (ORCID: https://orcid.org/0000-0002-2159-5248)
- Chen‐Hsiang Shen (ORCID: https://orcid.org/0000-0002-9560-3992)
- Amy R. Henry
- Jayeshbhai Chaudhari (ORCID: https://orcid.org/0000-0002-1864-562X)
- Reda Rawi (ORCID: https://orcid.org/0000-0002-0445-2325)
- Joseph P. Nkolola (ORCID: https://orcid.org/0000-0002-0678-9765)
- Sijy J. O’Dell
- Robin Carroll
- J. P. M. Langedijk
- Haijuan Du
- Christy Lavine
- Richard A. Koup
- Lawrence Shapiro
- Krisha McKee
- Bette Korber
- Hongying Duan
- Daniel C. Douek
- Nicole A. Doria-Rose
- Shuishu Wang
- Hua Wang
- Peter D. Kwong
- Lingshu Wang
- Dan H. Barouch
- John R. Mascola
- Yongping Yang
- Alejandro A. Espinosa Perez (ORCID: https://orcid.org/0009-0006-2877-1941)
- I-Ting Teng
- Jordan E. Becker
- Cheng Cheng
- Lucy Rutten
- Baoshan Zhang
Institutions
- Leidos (United States) (US)
- National Institutes of Health (US)
- Beth Israel Deaconess Medical Center (US)
- Aaron Diamond AIDS Research Center (US)
- New Mexico Consortium (US)
- National Institute of Allergy and Infectious Diseases (US)
- Janssen (Netherlands) (NL)
- Columbia University (US)
Publication Details
- Journal
- Cell Reports
- Published
- 2026-01-29
- DOI
- https://doi.org/10.1016/j.celrep.2025.116905
- Primary Topic
- HIV Research and Treatment
- Type
- article
- Field-Weighted Citation Impact
- 0.00