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-Structure paper
| タイトル | HIV broadly neutralizing antibody precursors to the Apex epitope induced in nonhuman primates. |
|---|---|
| ジャーナル・号・ページ | Sci Immunol, Vol. 10, Issue 110, Page eadt6660, Year 2025 |
| 掲載日 | 2025年8月22日 |
著者 | Krystal M Ma / Henry J Sutton / Payal P Pratap / Jon M Steichen / Diane Carnathan / James Quinn / Oleksandr Kalyuzhniy / Alessia Liguori / Sashank Agrawal / Sabyasachi Baboo / Patrick Madden / Christopher A Cottrell / Jordan R Willis / Jeong-Hyun Lee / Elise Landais / Xiaozhen Hu / Parham Ramezani-Rad / Gabriel Ozorowski / Vanessa R Lewis / Jolene K Diedrich / Xiaoya Zhou / Tasha K Altheide / Nicole Phelps / Erik Georgeson / Nushin B Alavi / Danny Lu / Saman Eskandarzadeh / Michael Kubitz / Yumiko Adachi / Tina-Marie Mullen / Murillo Silva / Mariane B Melo / Sunny Himansu / Darrell J Irvine / Dennis R Burton / John R Yates / James C Paulson / Devin Sok / Ian A Wilson / Guido Silvestri / Andrew B Ward / Shane Crotty / William R Schief / ![]() |
| PubMed 要旨 | An effective prophylactic HIV vaccine will likely need to induce broadly neutralizing antibodies (bnAbs). bnAbs to the Apex region of the HIV envelope glycoprotein (Env) are promising targets for ...An effective prophylactic HIV vaccine will likely need to induce broadly neutralizing antibodies (bnAbs). bnAbs to the Apex region of the HIV envelope glycoprotein (Env) are promising targets for vaccination because of their relatively low somatic hypermutation compared with other bnAbs. Most Apex bnAbs engage Env using an exceptionally long heavy-chain complementarity-determining region 3 (HCDR3) containing specific binding motifs, which reduces bnAb precursor frequency and makes priming of rare bnAb precursors a likely limiting step in the path to Apex bnAb induction. We found that adjuvanted protein or mRNA lipid nanoparticle (LNP) immunization of rhesus macaques with ApexGT6, an Env trimer engineered to bind Apex bnAb precursors, consistently induced Apex bnAb-related precursors with long HCDR3s bearing bnAb-like sequence motifs. Cryo-electron microscopy revealed that elicited Apex bnAb-related HCDR3s had structures combining elements of several prototype Apex bnAbs. These results achieve a critical HIV vaccine development milestone in outbred primates. |
リンク | Sci Immunol / PubMed:40845127 / PubMed Central |
| 手法 | EM (単粒子) / X線回折 |
| 解像度 | 1.88 - 3.3 Å |
| 構造データ | EMDB-44341, PDB-9b8b: EMDB-44342, PDB-9b8c: EMDB-48523, PDB-9mqg: ![]() PDB-9mpb: ![]() PDB-9mpc: ![]() PDB-9mpx: |
| 化合物 | ![]() ChemComp-NAG: ![]() ChemComp-HOH: ![]() ChemComp-GOL: |
| 由来 |
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キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / HIV Env / immune complex / VIRAL PROTEIN / macaque antibody / VIRAL PROTEIN-IMMUNE SYSTEM complex / V1V2 apex / IMMUNE SYSTEM / HIV-1 / Germline-targeting vaccination / ApexGT6 / V2-apex antibody |
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human immunodeficiency virus 1 (ヒト免疫不全ウイルス)
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