Tumor antigen cross-presentation and the dendritic cell: where it all begins?
Dendritic cells (DCs) are professional antigen-presenting cells (APCs) that are critical for the generation of effective cytotoxic T lymphocyte (CTL) responses; however, their function and phenotype are often defective or altered in tumor-bearing hosts, which may limit their capacity to mount an effective tumor-specific CTL response. In particular, the manner in which exogenous tumor antigens are acquired, processed, and cross-presented to CD8 T cells by DCs in tumor-bearing hosts is not well understood, but may have a profound effect on antitumor immunity. In this paper, we have examined the role of DCs in the cross-presentation of tumor antigen in terms of their subset, function, migration, and location with the intention of examining the early processes that contribute to the development of an ineffective anti-tumor immune response.
School of Medicine and Pharmacology, University of Western Australia, Perth, WA 6009, Australia.
Alison M
AM
McDonnell
Bruce W S
BW
Robinson
Andrew J
AJ
Currie
D000818:Animals; D017951:Antigen Presentation / Q000276:immunology; D000951:Antigens, Neoplasm / Q000276:immunology*; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D045142:Cross-Priming / Q000276:immunology*; D003713:Dendritic Cells / Q000276:immunology*; D051379:Mice; D008822:Mice, Transgenic
D000951:Antigens, Neoplasm