Broadly neutralizing anti-HIV antibodies

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Section of the binding of the antibody VRC01 (green, amino acids D457, S365) to HIV-1 GP120 (purple, N58, Y59) via a water molecule
Binding of the antibody b12 (green) to HIV-1 GP120 (red, contact area in yellow)

Breitneutralisierende anti-HIV antibody ( English broadly neutralizing anti-HIV antibodies , bNAbs) are against several HIV effective strains neutralizing antibodies .

properties

Most neutralizing antibodies are specific for a strain in their neutralizing effect. Broadly neutralizing antibodies bind to conserved areas on the surface of proteins on the virus surface. The generation of broadly neutralizing anti-HIV antibodies is a goal of HIV vaccine design . Broadly neutralizing anti-HIV antibodies are listed in the online databases bNAber and LANL Antibody database . The neutralization effect is dependent both on the binding of the bNAb to viral proteins and on the efficient binding of the bNAb to the Fc receptor . An efficient binding to the FcRn ( isoform of the Fc receptor), which occurs vaginally and rectally, can intensify the neutralization at the entry point of HIV.

Broadly neutralizing anti-HIV antibodies can be subdivided according to their binding site. B. to the part of the GP41 ( membrane-proximal external region , MPER) adjoining the transmembrane domain , to the peptidoglycan layer of the GP120, to the binding site of GP120 for the cellular receptor CD4 or to the variable regions of the GP120 (V1–3) respectively.

Properties of various anti-HIV-1 bNAbs
Viral epitope Antibody binding Antibody designation Year of publication
MPER of the gp41 Sequence epitope 2F5 1992
Sequence epitope 4E10 1994
Sequence epitope M66.6 2011
Sequence epitope CAP206-CH12 2011
Sequence epitope 10E8 l 2012
V1V2-glycan Peptidoglycan PG9, PG16 2009
Peptidoglycan CH01-04 2011
Peptidoglycan PGT 141-145 2011
Outer domain glycan Glycan only 2G12 1994
V3-glycan Peptidoglycan PGT121-123 2011
Peptidoglycan PGT125-131 2011
Peptidoglycan PGT135-137 2011
CD4 binding site CDRH3 loop b12 1991
HY16 2010
CDRH3 loop CH103-106 2013
is similar to CD4 via CDRH2 VRC01-03 2010
is similar to CD4 via CDRH2 VRC-PG04, 04b 2011
is similar to CD4 via CDRH2 VRC-CH30-34 2011
3BNC117, 3BNC60 2011
is similar to CD4 via CDRH2 NIH45-46 2011
12A12, 12A21 2011
8ANC131, 134 2011
1NC9, 1B2530 2011

literature

Web links

Individual evidence

  1. KA Hassapis, LG Kostrikis: HIV-1 vaccine strategies Utilizing viral vectors Including antigen- Displayed inoviral vectors. In: Current HIV Research . Volume 11, Number 8, December 2013, ISSN  1873-4251 , pp. 610-622, PMID 24517188 .
  2. AM Eroshkin, A. LeBlanc, D. Weekes, K. Post, Z. Li, A. Rajput, ST Butera, DR Burton, A. Godzik: bNAber: database of broadly neutralizing HIV antibodies. In: Nucleic Acids Research . Volume 42, Database issue January 2014, pp. D1133 – D1139, ISSN  1362-4962 , doi : 10.1093 / nar / gkt1083 , PMID 24214957 , PMC 3964981 (free full text).
  3. S. Bournazos, F. Klein, J. Pietzsch, MS Seaman, Nussenzweig MC, JV Ravetch: Broadly neutralizing anti-HIV-1 antibodies require Fc effector functions for in vivo activity. In: Cell . Volume 158, number 6, September 2014, ISSN  1097-4172 , pp. 1243-1253, doi : 10.1016 / j.cell.2014.08.023 , PMID 25215485 , PMC 4167398 (free full text).
  4. ^ SY Ko, A. Pegu, RS Rudicell, ZY Yang, MG Joyce, X. Chen, K. Wang, S. Bao, TD Kraemer, T. Rath, M. Zeng, SD Schmidt, JP Todd, SR Penzak, KO Saunders, MC Nason, AT Haase, SS Rao, RS Blumberg, JR Mascola, GJ Nabel: Enhanced neonatal Fc receptor function improves protection against primate SHIV infection. In: Nature . Volume 514, number 7524, October 2014, ISSN  1476-4687 , pp. 642-645, doi : 10.1038 / nature13612 , PMID 25119033 .
  5. ^ PN Reardon, H. Sage, SM Dennison, JW Martin, BR Donald, SM Alam, BF Haynes, LD Spicer: Structure of an HIV-1-neutralizing antibody target, the lipid-bound gp41 envelope membrane proximal region trimer. In: Proceedings of the National Academy of Sciences of the United States of America . Volume 111, Number 4, January 2014, pp. 1391-1396, ISSN  1091-6490 . doi : 10.1073 / pnas.1309842111 . PMID 24474763 . PMC 3910588 (free full text).
  6. HX Liao, R. Lynch, T. Zhou, F. Gao, SM Alam, SD Boyd, AZ Fire, KM Roskin, CA Schramm, Z. Zhang, J. Zhu, L. Shapiro, JC Mullikin, S. Gnanakaran, P. Hraber, K. Wiehe, G. Kelsoe, G. Yang, SM Xia, DC Montefiori, R. Parks, KE Lloyd, RM Scearce, KA Soderberg, M. Cohen, G. Kamanga, MK Louder, LM Tran, Y Chen, F. Cai, S. Chen, S. Moquin, X. Du, MG Joyce, S. Srivatsan, B. Zhang, A. Zheng, GM Shaw, BH Hahn, TB Kepler, BT Korber, PD Kwong, JR Mascola, BF Ha: Co-evolution of a broadly neutralizing HIV-1 antibody and founder virus. In: Nature. Volume 496, Number 7446, April 2013, pp. 469-476, ISSN  1476-4687 . doi : 10.1038 / nature12053 . PMID 23552890 . PMC 3637846 (free full text).
  7. X. Wu, ZY Yang, Y. Li, CM Hogerkorp, WR Schief, MS Seaman, T. Zhou, SD Schmidt, L. Wu, L. Xu, NS Longo, K. McKee, S. O'Dell, MK Louder, DL Wycuff, Y. Feng, M. Nason, N. Doria-Rose, M. Connors, PD Kwong, M. Roederer, RT Wyatt, GJ Nabel, JR Mascola: Rational design of envelope identifies broadly neutralizing human monoclonal antibodies to HIV-1. In: Science Volume 329, Number 5993, August 2010, pp. 856-861, ISSN  1095-9203 . doi : 10.1126 / science.1187659 . PMID 20616233 . PMC 2965066 (free full text).
  8. T. Zhou, I. Georgiev, X. Wu, ZY Yang, K. Dai, A. Finzi, YD Kwon, JF Scheid, W. Shi, L. Xu, Y. Yang, J. Zhu, MC Nussenzweig, J Sodroski, L. Shapiro, GJ Nabel, JR Mascola, PD Kwong: Structural basis for broad and potent neutralization of HIV-1 by antibody VRC01. In: Science Volume 329, Number 5993, August 2010, pp. 811-817, ISSN  1095-9203 . doi : 10.1126 / science.1192819 . PMID 20616231 . PMC 2981354 (free full text).
  9. LM Walker, SK Phogat, PY Chan-Hui, D. Wagner, P. Phung, JL Goss, T. Wrin, MD Simek, S. Fling, JL Mitcham, JK Lehrman, FH Priddy, OA Olsen, SM Frey, PW Hammond, S. Kaminsky, T. Zamb, M. Moyle, WC Koff, P. Poignard, DR Bu: Broad and potent neutralizing antibodies from an African donor reveal a new HIV-1 vaccine target. In: Science Volume 326, Number 5950, October 2009, pp. 285-289, ISSN  1095-9203 . doi : 10.1126 / science.1178746 . PMID 19729618 . PMC 3335270 (free full text).
  10. JR Mascola, BF Haynes: HIV-1 neutralizing antibodies: understanding nature's pathways. In: Immunological Reviews . Volume 254, number 1, July 2013, ISSN  1600-065X , pp. 225-244, doi : 10.1111 / imr.12075 , PMID 23772623 , PMC 3738265 (free full text).