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Broad and Potent Neutralizing Antibodies from an African Donor Reveal a New HIV-1 Vaccine Target.

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Title: Broad and Potent Neutralizing Antibodies from an African Donor Reveal a New HIV-1 Vaccine Target.
Authors: Walker, Laura M., Phogat, Sanjay K., Po-Ying Chan-Hui, Wagner, Denise, Phung, Pham, Goss, Julie L., Wrin, Terri, Simek, Melissa D., Fling, Steven, Mitcham, Jennifer L., Lehrman, Jennifer K., Priddy, Frances H., Olsen, Ole A., Frey, Steven M., Hammond, Phillip W., Kaminsky, Stephen, Zamb, Timothy, Moyle, Matthew, Koff, Wayne C., Poignard, Pascal
Source: Science (pre-March 2025). 10/9/2009, Vol. 326 Issue 5950, p285-289. 5p.
Subjects: Serology, HIV-positive persons, Blood donors, Monoclonal antibodies, Research methodology, Neutralization (Chemistry), Epitopes, AIDS vaccines, HIV seroconversion
Abstract: Broadly neutralizing antibodies (bNAbs), which develop over time in some HIV-1-infected individuals, define critical epitopes for HIV vaccine design. Using a systematic approach, we have examined neutralization breadth in the sera of about 1800 HIV-1-infected individuals, primarily infected with non-clade B viruses, and have selected donors for monoclonal antibody (mAb) generation. We then used a high-throughput neutralization screen of antibody-containing culture supernatants from about 30,000 activated memory B cells from a clade A-infected African donor to isolate two potent mAbs that target a broadly neutralizing epitope. This epitope is preferentially expressed on trimeric Envelope protein and spans conserved regions of variable loops of the gp120 subunit. The results provide a framework for the design of new vaccine candidates for the elicitation of bNAb responses. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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PubType: Academic Journal
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  Data: Broad and Potent Neutralizing Antibodies from an African Donor Reveal a New HIV-1 Vaccine Target.
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 10/9/2009, Vol. 326 Issue 5950, p285-289. 5p.
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  Data: Broadly neutralizing antibodies (bNAbs), which develop over time in some HIV-1-infected individuals, define critical epitopes for HIV vaccine design. Using a systematic approach, we have examined neutralization breadth in the sera of about 1800 HIV-1-infected individuals, primarily infected with non-clade B viruses, and have selected donors for monoclonal antibody (mAb) generation. We then used a high-throughput neutralization screen of antibody-containing culture supernatants from about 30,000 activated memory B cells from a clade A-infected African donor to isolate two potent mAbs that target a broadly neutralizing epitope. This epitope is preferentially expressed on trimeric Envelope protein and spans conserved regions of variable loops of the gp120 subunit. The results provide a framework for the design of new vaccine candidates for the elicitation of bNAb responses. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=44922255
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        Text: English
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        StartPage: 285
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      – SubjectFull: Serology
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