Abstract:
:DC-SIGN, a C-type lection expressed on dendritic cells, enhances HIV-1 infection in cis and in trans. HIV-1 circulating recombinant form (CRF) 07_BC viruses have been the predominant strain found among injection drug users in southern China and Taiwan. The goal of this study was to map the DC-SIGN-interactive domain on the gp120 of CRF07_BC. Pseudotyped viruses containing single (N233Q, N275Q, N330Q, N351Q, N355Q, N381Q, and N387Q), double (N233Q + N275Q, N233Q + N351Q, N275Q + N351Q), or triple (N233Q + N275Q + N351Q) N-glycan mutant gp120 were generated. Capture assays showed that the DC-SIGN-binding capacity of pseudoviruses with N275Q or N351Q decreased significantly. Rabbit antisera against synthetic peptides covering the N275 (R72 antiserum) or N351 (R77 antiserum) region blocked the interaction between wild-type gp120 and DC-SIGN in the capture assay. Furthermore, pseudotype viruses containing gp120 from five different CRF07_BC isolates were generated and R72 and R77 antisera blocked their interactions with DC-SIGN (80% for R72 and 40% for R77, respectively) in the capture assays. In conclusion, the N275 and N351 glycan sites on the CRF07_BC gp120 play an important role in mediating the interaction between gp120 and DC-SIGN. This information is valuable for developing both therapeutic and preventive agents for HIV-1 infection.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Liao CF,Wang SF,Lin YT,Ho DD,Chen YMdoi
10.1089/AID.2010.0215subject
Has Abstractpub_date
2011-08-01 00:00:00pages
831-9issue
8eissn
0889-2229issn
1931-8405journal_volume
27pub_type
杂志文章abstract::Vaginal anti-HIV antibody responses may be beneficial, and possibly required, for vaccine-induced protection against HIV infection acquired through receptive vaginal intercourse. We have previously determined that intranasal immunization with a hybrid HIV peptide and cholera toxin induced vaginal anti-HIV IgA response...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1997.13.945
更新日期:1997-07-20 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,多中心研究
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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更新日期:1998-03-20 00:00:00
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章,评审
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更新日期:1994-08-01 00:00:00
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,多中心研究
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journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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abstract::Histone deacetylases (HDACs) act on histones within the nucleosome-bound promoter of human immunodeficiency virus type 1 (HIV-1) to maintain proviral latency. HDAC inhibition leads to promoter expression and the escape of HIV from latency. We evaluated the ability of the potent inhibitor recently licensed for use in o...
journal_title:AIDS research and human retroviruses
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