Document Detail


Modified vaccinia Ankara expressing HIVA antigen stimulates HIV-1-specific CD8 T cells in ELISpot assays of HIV-1 exposed infants.
MedLine Citation:
PMID:  16043269     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Recombinant modified vaccinia virus Ankara expressing HIV-1 antigens (MVA.HIVA) was used in ELISpot assays to monitor HIV-1-specific T cell responses in infants. Responses to MVA.HIVA and HIV-1 peptides were examined in 13 infected and 81 exposed uninfected infants in Nairobi, Kenya. Responses to MVA.HIVA (38%) and peptide stimulation (38%) were similar in frequency (p=1.0) and magnitude (mean 176 versus 385 HIVSFU/10(6), p=0.96) in HIV-1 infected infants. In exposed uninfected infants, MVA.HIVA detected more positive responses and higher magnitude responses as compared to peptide. MVA.HIVA ELISpot is a sensitive method for quantification of HIV-1-specific CD8+ T cell responses in HIV-1 exposed infants. These results demonstrate the relevance of HIV-1 clade A consensus-derived immunogen HIVA for the viruses currently circulating in Nairobi.
Authors:
Jennifer A Slyker; Barbara L Lohman; Dorothy A Mbori-Ngacha; Marie Reilly; Edmund G-T Wee; Tao Dong; Andrew J McMichael; Sarah L Rowland-Jones; Tomas Hanke; Grace John-Stewart
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.     Date:  2005-02-19
Journal Detail:
Title:  Vaccine     Volume:  23     ISSN:  0264-410X     ISO Abbreviation:  Vaccine     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-08-15     Completed Date:  2005-10-27     Revised Date:  2013-03-26    
Medline Journal Info:
Nlm Unique ID:  8406899     Medline TA:  Vaccine     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  4711-9     Citation Subset:  IM    
Affiliation:
Department of Medical Microbiology, University of Nairobi, Kenya.
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MeSH Terms
Descriptor/Qualifier:
CD8-Positive T-Lymphocytes / immunology*
Enzyme-Linked Immunosorbent Assay
HIV Antigens / genetics,  immunology*
HIV Infections / immunology*,  prevention & control
HIV-1 / chemistry,  classification,  immunology*
Humans
Infant
Lymphocyte Activation / immunology*
Vaccination
Vaccinia virus / genetics,  immunology
Viral Vaccines / genetics,  immunology
Grant Support
ID/Acronym/Agency:
D43 TW000007/TW/FIC NIH HHS; D43-TW00007/TW/FIC NIH HHS; HD 23412/HD/NICHD NIH HHS; K01 AI087369/AI/NIAID NIH HHS; P30 AI027757-12/AI/NIAID NIH HHS; R01 HD023412/HD/NICHD NIH HHS; R01 HD023412-19/HD/NICHD NIH HHS
Chemical
Reg. No./Substance:
0/HIV Antigens; 0/Viral Vaccines
Comments/Corrections

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