Abstract:
:Vaccine-mediated prevention of primary infection with human immunodeficiency virus (HIV) may require the sustained production of antibody at mucosal portals of entry. Here, we describe a novel approach of repeated mucosal immunization by delivering an HIV-1 envelope glycoprotein (gp) in a gel formulated for intravaginal delivery. Rabbits were immunized over one to three 19-day cycles of intravaginal dosing with soluble recombinant trimeric HIV-1 clade C gp140 administered in Carbopol gel. The formulation was well tolerated. A single immunization cycle induced immunoglobulin G (IgG) antibody detected in the serum and female genital tract, and titers were boosted on further immunization. Vaccine-induced serum antibodies neutralized the infectivity of a pseudovirus carrying a heterologous clade C envelope. Our data prove the concept that repeated exposure of the female genital tract to HIV envelope can induce mucosally detectable antibody.
journal_name
Mucosal Immunoljournal_title
Mucosal immunologyauthors
Cranage MP,Fraser CA,Stevens Z,Huting J,Chang M,Jeffs SA,Seaman MS,Cope A,Cole T,Shattock RJdoi
10.1038/mi.2009.110subject
Has Abstractpub_date
2010-01-01 00:00:00pages
57-68issue
1eissn
1933-0219issn
1935-3456pii
mi2009110journal_volume
3pub_type
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pub_type: 杂志文章
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journal_title:Mucosal immunology
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journal_title:Mucosal immunology
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journal_title:Mucosal immunology
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