These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: CD1-restricted microbial lipid antigen-specific recognition found in the CD8+ alpha beta T cell pool.
    Author: Rosat JP, Grant EP, Beckman EM, Dascher CC, Sieling PA, Frederique D, Modlin RL, Porcelli SA, Furlong ST, Brenner MB.
    Journal: J Immunol; 1999 Jan 01; 162(1):366-71. PubMed ID: 9886408.
    Abstract:
    It is generally accepted that TCR alphabeta+ CD8+ T cells recognize immunogenic peptides bound to MHC-encoded class I molecules. This recognition is a major component of the cellular response mediating immune protection and recovery from viral infections and from certain intracellular bacterial infections. Here, we report two human CD8+ TCR alphabeta+ T cell lines specific for Mycobacterium tuberculosis Ags presented in the context of CD1a or CD1c Ag-presenting molecules. These T cells recognize lipid Ags and display cytotoxicity as well as strong Th cell type I cytokine responses. By extending presentation by the CD1 system to the major TCR alphabeta+ CD8+ T cell pool, this system gains wider applicability beyond the double negative subset of T cells previously shown to have this reactivity. This implies that previous assumptions about the role of CD8+ T cells in microbial immunity may require revision as the relative proportions of CD1-restricted and MHC class I-restricted CD8+ T cells are further defined.
    [Abstract] [Full Text] [Related] [New Search]