Isolation of a human anti-HIV gp41 membrane proximal region neutralizing antibody by antigen-specific single B cell sorting.
Isolation of a human anti-HIV gp41 membrane proximal region neutralizing antibody by antigen-specific single B cell sorting.
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DOI:
10.1371/journal.pone.0023532
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Haynes BF
中科院分区:
文献类型:
--
作者:
Morris L;Chen X;Alam M;Tomaras G;Zhang R;Marshall DJ;Chen B;Parks R;Foulger A;Jaeger F;Donathan M;Bilska M;Gray ES;Abdool Karim SS;Kepler TB;Whitesides J;Montefiori D;Moody MA;Liao HX;Haynes BF
Broadly neutralizing antibodies are not commonly produced in HIV-1 infected individuals nor by experimental HIV-1 vaccines. When these antibodies do occur, it is important to be able to isolate and characterize them to provide clues for vaccine design. CAP206 is a South African subtype C HIV-1-infected individual previously shown to have broadly neutralizing plasma antibodies targeting the envelope gp41 distal membrane proximal external region (MPER). We have now used a fluoresceinated peptide tetramer antigen with specific cell sorting to isolate a human neutralizing monoclonal antibody (mAb) against the HIV-1 envelope gp41 MPER. The isolated recombinant mAb, CAP206-CH12, utilized a portion of the distal MPER (HXB2 amino acid residues, 673–680) and neutralized a subset of HIV-1 pseudoviruses sensitive to CAP206 plasma antibodies. Interestingly, this mAb was polyreactive and used the same germ-line variable heavy (VH1-69) and variable kappa light chain (VK3-20) gene families as the prototype broadly neutralizing anti-MPER mAb, 4E10 (residues 672–680). These data indicate that there are multiple immunogenic targets in the C-terminus of the MPER of HIV-1 gp41 envelope and suggests that gp41 neutralizing epitopes may interact with a restricted set of naive B cells during HIV-1 infection.
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影响因子:
56.9
作者:
Haynes, BF;Fleming, J;Alam, SM
通讯作者:
Alam, SM
影响因子:
5.4
作者:
Gray, Elin S.;Madiga, Maphuti C.;Morris, Lynn
通讯作者:
Morris, Lynn
DOI:
10.1073/pnas.0506927102
发表时间:
2005-10-11
影响因子:
11.1
作者:
Miller, MD;Geleziunas, R;Pessi, A
通讯作者:
Pessi, A
影响因子:
15.8
作者:
Gray ES;Meyers T;Gray G;Montefiori DC;Morris L
通讯作者:
Morris L
影响因子:
32.4
作者:
Cardoso, RMF;Zwick, MB;Wilson, IA
通讯作者:
Wilson, IA