Search CTL/CD8+ T-Cell Epitope Database

Found 3 matching records:

Displaying record number 53120

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HXB2 Location	Pol(552-561) RT(397-406) DNA(3738..3767)	Pol Epitope Map
Author Location	RT Pol(552-561)
Epitope	TWETWWTEYW	Epitope Alignment
Species (MHC/HLA)	human(B*44)
Immunogen	HIV-1 infection
Country	Spain
Experimental methods	CD8 T-cell Elispot - IFNγ, Flow cytometric T-cell cytokine assay, Proliferation
Keywords	HAART, ART, supervised treatment interruptions (STI)

Notes

• Structured treatment interruption (STI) alone is not able to control viral replication in chronically infected patients, probably due to lack of strong, maintained T-helper cell responses. HIV-1 specific CD8+ T-cell responses were shown to increase significantly until the end of the follow up, but were not correlated with viral load.
• Less than 2 of 11 patients recognized this epitope.

References

Plana2004 Montserrat Plana, Felipe Garcia, Annette Oxenius, Gabriel M. Ortiz, Anna Lopez, Anna Cruceta, Gabriel Mestre, Emilio Fumero, Catherine Fagard, Maria Antonia Sambeat, Ferran Segura, José M. Miró, Mireia Arnedo, L. Lopalcos, Tomas Pumarola, Bernard Hirschel, Rodney E. Phillips, Douglas F. Nixon, Teresa Gallart, and Jose M. Gatell. Relevance of HIV-1-Specific CD4+ Helper T-Cell Responses During Structured Treatment Interruptions in Patients With CD4+ T-Cell Nadir Above 400/mm3. J. Acquir. Immune Defic. Syndr., 36(3):791-799, 1 Jul 2004. PubMed ID: 15213562. Show all entries for this paper.

Displaying record number 58539

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HXB2 Location	Pol(552-561) RT(397-406) DNA(3738..3767)	Pol Epitope Map
Author Location	RT(397-406)
Epitope	TWETWWTEYW	Epitope Alignment
Subtype	B
Species (MHC/HLA)	human(B*44)
Immunogen	HIV-1 infection
Country	Canada
Experimental methods	Other
Keywords	characterizing CD8+ T cells, elite controllers

Notes

• Dual color EliSpot testing for IL-2 and IFN-γ was used to determine whether CTL restricted by MHC Class I alleles associated with slow progression to disease, viz. B*57 and B*27, had a more poly-functional profile than other CD8+ cells in a treatment-naive cohort from Montreal. B*57/B*27-restricted CTL producing IL-2 or IFN-γ or IL-2/IFN-γ, were similar in both slow progressors (SP) and progressors. Other non-protective MHC-I-restricted CTL producing both IL-2/IFN-γ, were greater in number in SP than progressors.
• Within SP, peptides restricted by both protective and non-protective MHC-I alleles elicited CTL with the same functional profile. For progressors, peptides and epitopes restricted by protective B*57/B*27 alleles stimulated a higher proportion of dual-(IL-2/IFN-γ)secreting CTL.
• HLA-B*44-restricted RT optimal epitope TWETWWTEYW was tested in a dual color EliSpot and was found to elicit CTL that could produce IL-2 and/or IFN-γ.

References

Peretz2011 Yoav Peretz, Olivia Marra, Réjean Thomas, Danielle Legault, Pierre Côté, Mohamed-Rachid Boulassel, Danielle Rouleau, Jean-Pierre Routy, Rafick-Pierre Sékaly, Christos M Tsoukas, Cécile Tremblay, and Nicole F. Bernard. Relative Contribution of HIV-Specific Functional Lymphocyte Subsets Restricted by Protective and Non-Protective HLA Alleles. Viral Immunol, 24(3):189-198, Jun 2011. PubMed ID: 21668360. Show all entries for this paper.

Displaying record number 552

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HXB2 Location	Pol(552-561) RT(397-406) DNA(3738..3767)	Pol Epitope Map
Author Location	RT( LAI)
Epitope	TWETWWTEYW	Epitope Alignment
Subtype	B
Species (MHC/HLA)	human(B44)
Immunogen	HIV-1 infection
Experimental methods
Keywords

Notes

• Recognized by CTL from two progressors, EILKEPVGHGV and EELRQHLLRW were also recognized by one, and RETKLGKAGY was also recognized by the other.

References

Menendez-Arias1998 L. Menendez-Arias, A. Mas, and E. Domingo. Cytotoxic T-Lymphocyte Responses to HIV-1 Reverse Transcriptase. Viral Immunol., 11:167-181, 1998. PubMed ID: 10189185. Show all entries for this paper.

vanderBurg1997 S. H. van der Burg, M. R. Klein, O. Pontesilli, A. M. Holwerda, J. Drijfhout, W. M. Kast, F. Miedema, and C. J. M. Melief. HIV-1 Reverse Transcriptase-Specific CTL against Conserved Epitopes Do Not Protect against Progression to AIDS. J. Immunol., 159:3648-3654, 1997. PubMed ID: 9317165. Show all entries for this paper.