National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
R01 AI136621
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
UM1AI10066
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
UM1 AI144462
米国
引用
ジャーナル: NPJ Vaccines / 年: 2024 タイトル: Priming antibody responses to the fusion peptide in rhesus macaques. 著者: Christopher A Cottrell / Payal P Pratap / Kimberly M Cirelli / Diane G Carnathan / Chiamaka A Enemuo / Aleksandar Antanasijevic / Gabriel Ozorowski / Leigh M Sewall / Hongmei Gao / Joel D ...著者: Christopher A Cottrell / Payal P Pratap / Kimberly M Cirelli / Diane G Carnathan / Chiamaka A Enemuo / Aleksandar Antanasijevic / Gabriel Ozorowski / Leigh M Sewall / Hongmei Gao / Joel D Allen / Bartek Nogal / Murillo Silva / Jinal Bhiman / Matthias Pauthner / Darrell J Irvine / David Montefiori / Max Crispin / Dennis R Burton / Guido Silvestri / Shane Crotty / Andrew B Ward / 要旨: Immunodominance of antibodies targeting non-neutralizing epitopes and the high level of somatic hypermutation within germinal centers (GCs) required for most HIV broadly neutralizing antibodies ...Immunodominance of antibodies targeting non-neutralizing epitopes and the high level of somatic hypermutation within germinal centers (GCs) required for most HIV broadly neutralizing antibodies (bnAbs) are major impediments to the development of an effective HIV vaccine. Rational protein vaccine design and non-conventional immunization strategies are potential avenues to overcome these hurdles. Here, we report using implantable osmotic pumps to continuously deliver a series of epitope-targeted immunogens to rhesus macaques over the course of six months to prime and elicit antibody responses against the conserved fusion peptide (FP). GC responses and antibody specificities were tracked longitudinally using lymph node fine-needle aspirates and electron microscopy polyclonal epitope mapping (EMPEM), respectively, to show antibody responses to the FP/N611 glycan hole region were primed, although exhibited limited neutralization breadth. Application of cryoEMPEM delineated key residues for on-target and off-target responses that can drive the next round of structure-based vaccine design.
#256 - 2021年4月 SARSコロナウイルス2型のスパイクと抗体 (SARS-CoV-2 Spike and Antibodies) 類似性 (1)
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集合体
登録構造単位
A: Surface protein gp120 B: Transmembrane protein gp41 C: Transmembrane protein gp41 E: Surface protein gp120 D: Transmembrane protein gp41 F: Surface protein gp120 H: FP3 Heavy Chain L: FP3 Light Chain ヘテロ分子