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Title: Human non-neutralizing HIV-1 envelope monoclonal antibodies limit the number of founder viruses during SHIV mucosal infection in rhesus macaques

Abstract

HIV-1 mucosal transmission begins with virus or virus-infected cells moving through mucus across mucosal epithelium to infect CD4⁺ T cells. Although broadly neutralizing antibodies (bnAbs) are the type of HIV-1 antibodies that are most likely protective, they are not induced with current vaccine candidates. In contrast, antibodies that do not neutralize primary HIV-1 strains in the TZM-bl infection assay are readily induced by current vaccine candidates and have also been implicated as secondary correlates of decreased HIV-1 risk in the RV144 vaccine efficacy trial. Here, we have studied the capacity of anti-Env monoclonal antibodies (mAbs) against either the immunodominant region of gp41 (7B2 IgG1), the first constant region of gp120 (A32 IgG1), or the third variable loop (V3) of gp120 (CH22 IgG1) to modulate in vivo rectal mucosal transmission of a high-dose simian-human immunodeficiency virus (SHIV-BaL) in rhesus macaques. 7B2 IgG1 or A32 IgG1, each containing mutations to enhance Fc function, was administered passively to rhesus macaques but afforded no protection against productive clinical infection while the positive control antibody CH22 IgG1 prevented infection in 4 of 6 animals. Enumeration of transmitted/founder (T/F) viruses revealed that passive infusion of each of the three antibodies significantly reduced the number of T/Fmore » genomes. Some antibodies that bind HIV-1 Env but fail to neutralize virus in traditional neutralization assays may limit the number of T/F viruses involved in transmission without leading to enhancement of viral infection. For one of these mAbs, gp41 mAb 7B2, we provide the first co-crystal structure in complex with a common cyclical loop motif demonstrated to be critical for infection by other retroviruses.« less

Authors:
 [1];  [2];  [3];  [2];  [2];  [2];  [2];  [2];  [2];  [1];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [3];  [4] more »;  [4];  [2];  [5];  [6];  [6];  [2];  [7];  [8];  [7];  [9];  [10];  [10];  [10];  [2];  [11];  [11];  [11];  [12];  [4];  [1];  [1];  [2];  [2];  [2];  [3];  [2];  [13] « less
+ Show Author Affiliations
  1. Harvard Medical School, Boston, MA (United States)
  2. Duke School of Medicine, Durham, NC (United States)
  3. Univ. of Pennsylvania, Philadelphia, PA (United States)
  4. Imperial College London, London (United Kingdom)
  5. Tulane Univ. School of Medicine, New Orleans, LA (United States)
  6. Univ. of California, Irvine, CA (United States)
  7. Mahidol Univ., Bangkok (Thailand)
  8. Armed Forces Research Institute of Medical Sciences (AFRIMS), Bangkok (Thailand)
  9. Ministry of Public Health, Nonthaburi (Thailand)
  10. Walter Reed Army Institute of Research, Silver Springs, MD (United States)
  11. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  12. INSERM Univ. of Strasbourg, Alsace (France)
  13. Vaccine Research Center, Bethesda, MD (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1222591
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
PLoS Pathogens
Additional Journal Information:
Journal Volume: 11; Journal Issue: 8; Journal ID: ISSN 1553-7374
Publisher:
Public Library of Science
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; antibodies; HIV-1; virions; macaque; rhesus monkeys; macrophages; enzyme-linked immunoassays; T cells

Citation Formats

Santra, Sampa, Tomaras, Georgia D., Warrier, Ranjit, Nicely, Nathan I., Liao, Hua -Xin, Pollara, Justin, Liu, Pinghuang, Alam, S. Munir, Zhang, Ruijun, Cocklin, Sarah L., Shen, Xiaoying, Duffy, Ryan, Xia, Shi -Mao, Schutte, Robert J., Pemble IV, Charles W., Dennison, S. Moses, Li, Hui, Chao, Andrew, Vidnovic, Kora, Evans, Abbey, Klein, Katja, Kumar, Amit, Robinson, James, Landucci, Gary, Forthal, Donald N., Montefiori, David C., Kaewkungwal, Jaranit, Nitayaphan, Sorachai, Pitisuttithum, Punnee, Rerks-Ngarm, Supachai, Robb, Merlin L., Michael, Nelson L., Kim, Jerome H., Soderberg, Kelly A., Giorgi, Elena E., Blair, Lily, Korber, Bette T., Moog, Christiane, Shattock, Robin J., Letvin, Norman L., Schmitz, Joern E., Moody, M. A., Gao, Feng, Ferrari, Guido, Shaw, George M., Haynes, Barton F., and Douek, Daniel C. Human non-neutralizing HIV-1 envelope monoclonal antibodies limit the number of founder viruses during SHIV mucosal infection in rhesus macaques. United States: N. p., 2015. Web. doi:10.1371/journal.ppat.1005042.
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Santra, Sampa, Tomaras, Georgia D., Warrier, Ranjit, Nicely, Nathan I., Liao, Hua -Xin, Pollara, Justin, Liu, Pinghuang, Alam, S. Munir, Zhang, Ruijun, Cocklin, Sarah L., Shen, Xiaoying, Duffy, Ryan, Xia, Shi -Mao, Schutte, Robert J., Pemble IV, Charles W., Dennison, S. Moses, Li, Hui, Chao, Andrew, Vidnovic, Kora, Evans, Abbey, Klein, Katja, Kumar, Amit, Robinson, James, Landucci, Gary, Forthal, Donald N., Montefiori, David C., Kaewkungwal, Jaranit, Nitayaphan, Sorachai, Pitisuttithum, Punnee, Rerks-Ngarm, Supachai, Robb, Merlin L., Michael, Nelson L., Kim, Jerome H., Soderberg, Kelly A., Giorgi, Elena E., Blair, Lily, Korber, Bette T., Moog, Christiane, Shattock, Robin J., Letvin, Norman L., Schmitz, Joern E., Moody, M. A., Gao, Feng, Ferrari, Guido, Shaw, George M., Haynes, Barton F., & Douek, Daniel C. Human non-neutralizing HIV-1 envelope monoclonal antibodies limit the number of founder viruses during SHIV mucosal infection in rhesus macaques. United States. https://doi.org/10.1371/journal.ppat.1005042
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Santra, Sampa, Tomaras, Georgia D., Warrier, Ranjit, Nicely, Nathan I., Liao, Hua -Xin, Pollara, Justin, Liu, Pinghuang, Alam, S. Munir, Zhang, Ruijun, Cocklin, Sarah L., Shen, Xiaoying, Duffy, Ryan, Xia, Shi -Mao, Schutte, Robert J., Pemble IV, Charles W., Dennison, S. Moses, Li, Hui, Chao, Andrew, Vidnovic, Kora, Evans, Abbey, Klein, Katja, Kumar, Amit, Robinson, James, Landucci, Gary, Forthal, Donald N., Montefiori, David C., Kaewkungwal, Jaranit, Nitayaphan, Sorachai, Pitisuttithum, Punnee, Rerks-Ngarm, Supachai, Robb, Merlin L., Michael, Nelson L., Kim, Jerome H., Soderberg, Kelly A., Giorgi, Elena E., Blair, Lily, Korber, Bette T., Moog, Christiane, Shattock, Robin J., Letvin, Norman L., Schmitz, Joern E., Moody, M. A., Gao, Feng, Ferrari, Guido, Shaw, George M., Haynes, Barton F., and Douek, Daniel C. Mon . "Human non-neutralizing HIV-1 envelope monoclonal antibodies limit the number of founder viruses during SHIV mucosal infection in rhesus macaques". United States. https://doi.org/10.1371/journal.ppat.1005042. https://www.osti.gov/servlets/purl/1222591.
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@article{osti_1222591,
title = {Human non-neutralizing HIV-1 envelope monoclonal antibodies limit the number of founder viruses during SHIV mucosal infection in rhesus macaques},
author = {Santra, Sampa and Tomaras, Georgia D. and Warrier, Ranjit and Nicely, Nathan I. and Liao, Hua -Xin and Pollara, Justin and Liu, Pinghuang and Alam, S. Munir and Zhang, Ruijun and Cocklin, Sarah L. and Shen, Xiaoying and Duffy, Ryan and Xia, Shi -Mao and Schutte, Robert J. and Pemble IV, Charles W. and Dennison, S. Moses and Li, Hui and Chao, Andrew and Vidnovic, Kora and Evans, Abbey and Klein, Katja and Kumar, Amit and Robinson, James and Landucci, Gary and Forthal, Donald N. and Montefiori, David C. and Kaewkungwal, Jaranit and Nitayaphan, Sorachai and Pitisuttithum, Punnee and Rerks-Ngarm, Supachai and Robb, Merlin L. and Michael, Nelson L. and Kim, Jerome H. and Soderberg, Kelly A. and Giorgi, Elena E. and Blair, Lily and Korber, Bette T. and Moog, Christiane and Shattock, Robin J. and Letvin, Norman L. and Schmitz, Joern E. and Moody, M. A. and Gao, Feng and Ferrari, Guido and Shaw, George M. and Haynes, Barton F. and Douek, Daniel C.},
abstractNote = {HIV-1 mucosal transmission begins with virus or virus-infected cells moving through mucus across mucosal epithelium to infect CD4⁺ T cells. Although broadly neutralizing antibodies (bnAbs) are the type of HIV-1 antibodies that are most likely protective, they are not induced with current vaccine candidates. In contrast, antibodies that do not neutralize primary HIV-1 strains in the TZM-bl infection assay are readily induced by current vaccine candidates and have also been implicated as secondary correlates of decreased HIV-1 risk in the RV144 vaccine efficacy trial. Here, we have studied the capacity of anti-Env monoclonal antibodies (mAbs) against either the immunodominant region of gp41 (7B2 IgG1), the first constant region of gp120 (A32 IgG1), or the third variable loop (V3) of gp120 (CH22 IgG1) to modulate in vivo rectal mucosal transmission of a high-dose simian-human immunodeficiency virus (SHIV-BaL) in rhesus macaques. 7B2 IgG1 or A32 IgG1, each containing mutations to enhance Fc function, was administered passively to rhesus macaques but afforded no protection against productive clinical infection while the positive control antibody CH22 IgG1 prevented infection in 4 of 6 animals. Enumeration of transmitted/founder (T/F) viruses revealed that passive infusion of each of the three antibodies significantly reduced the number of T/F genomes. Some antibodies that bind HIV-1 Env but fail to neutralize virus in traditional neutralization assays may limit the number of T/F viruses involved in transmission without leading to enhancement of viral infection. For one of these mAbs, gp41 mAb 7B2, we provide the first co-crystal structure in complex with a common cyclical loop motif demonstrated to be critical for infection by other retroviruses.},
doi = {10.1371/journal.ppat.1005042},
journal = {PLoS Pathogens},
number = 8,
volume = 11,
place = {United States},
year = {Mon Aug 03 00:00:00 EDT 2015},
month = {Mon Aug 03 00:00:00 EDT 2015}
}
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Immunization with HIV-1 gp41 Subunit Virosomes Induces Mucosal Antibodies Protecting Nonhuman Primates against Vaginal SHIV Challenges
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Topological Layers in the HIV-1 gp120 Inner Domain Regulate gp41 Interaction and CD4-Triggered Conformational Transitions
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Infectious Virion Capture by HIV-1 gp120-Specific IgG from RV144 Vaccinees
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