Related Experiment Video
Updated: May 21, 2026

Evaluation of Tumor-infiltrating Leukocyte Subsets in a Subcutaneous Tumor Model
Published on: April 13, 2015
Infiltrating CTLs are bothered by HLA-E on tumors
Marloes J M Gooden1, Thorbald van Hall
1Department of Obstetrics & Gynecology; University Medical Center Groningen; University of Groningen; Groningen, The Netherlands.
Abstract:
We recently described the upregulation of HLA-E in ovarian and cervical cancers. Instead of interacting with natural killer cells, HLA-E appeared to inhibit intratumoral cytotoxic T lymphocytes (CTL) via the receptor CD94/NKG2A. Strikingly, the survival benefit of intraepithelial infiltrating CTL was lost in those cancers with high HLA-E expression.
Related Concept Videos
Cytotoxic T Cells-mediated Immune Response
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Tumor Immunotherapy
The Tumor Microenvironment
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Metastasis
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
