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Cirelli, Kimberly M.; Carnathan, Diane G.; Nogal, Bartek; Martin, Jacob T.; Rodriguez, Oscar L.; Upadhyay, Amit A.; Enemuo, Chiamaka A.; Gebru, Etse H.; Choe, Yury; Viviano, Federico; Nakao, Catherine; Pauthner, Matthias G.; Reiss, Samantha; Cottrell, Christopher A.; Smith, Melissa L.; Bastidas, Raiza; Gibson, William; Wolabaugh, Amber N.; Melo, Mariane B.; Cossette, Benjamin; Kumar, Venkatesh; Patel, Nirav B.; Tokatlian, Talar; Menis, Sergey; Kulp, Daniel W.; Burton, Dennis R.; Murrell, Ben; Schief, William R.; Bosinger, Steven E.; Ward, Andrew B.; Watson, Corey T.; Silvestri, Guido; Irvine, Darrell J.; Crotty, Shane
Cell, 05/2019, Letnik: 177, Številka: 5Journal Article
Conventional immunization strategies will likely be insufficient for the development of a broadly neutralizing antibody (bnAb) vaccine for HIV or other difficult pathogens because of the immunological hurdles posed, including B cell immunodominance and germinal center (GC) quantity and quality. We found that two independent methods of slow delivery immunization of rhesus monkeys (RMs) resulted in more robust T follicular helper (TFH) cell responses and GC B cells with improved Env-binding, tracked by longitudinal fine needle aspirates. Improved GCs correlated with the development of >20-fold higher titers of autologous nAbs. Using a new RM genomic immunoglobulin locus reference, we identified differential IgV gene use between immunization modalities. Ab mapping demonstrated targeting of immunodominant non-neutralizing epitopes by conventional bolus-immunized animals, whereas slow delivery-immunized animals targeted a more diverse set of epitopes. Thus, alternative immunization strategies can enhance nAb development by altering GCs and modulating the immunodominance of non-neutralizing epitopes. Display omitted •Slow delivery immunization enhances HIV neutralizing antibody development in monkeys•Slow delivery immunization alters immunodominance of the responding B cells•Weekly longitudinal germinal center (GC) B and TFH analyses provides new GC insights•High-resolution rhesus immunoglobulin locus genomic reference sequence An integrated immunological, bioinformatic and imaging approach demonstrates how slow delivery immunization enhances neutralizing antibody and germinal center reactions over conventional strategies in response to HIV Env protein immunization in non-human primates.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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