Use of the CD107 mobilization assay reveals that cytotoxic T lymphocytes with novel
MHC-Ib restriction are activated during Listeria monocytogenes infection.
J Immunol Methods 2007;
328:45-52. [PMID:
17900608 PMCID:
PMC2140280 DOI:
10.1016/j.jim.2007.08.005]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2007] [Revised: 06/20/2007] [Accepted: 08/02/2007] [Indexed: 10/22/2022]
Abstract
Detection of cytotoxic activity by pathogen-specific T cells of unknown antigenic specificity is difficult due to the limitations of using infected cells, instead of peptide-pulsed cells, as targets. We report here that the recently described CD107 mobilization assay readily allowed for the ex vivo detection of cytotoxic T lymphocytes (CTL) with a novel MHC-Ib restriction that specifically recognized Listeria monocytogenes-infected macrophages. The CD107 mobilization assay is likely to be a useful tool for detection of CD8(+) T cells that recognize a wide variety of intracellular pathogens.
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