Circulating T lymphocytes enter a tissue if they express appropriate chemokine receptors and adhesion molecules to engage ligands presented at this site. To aid rational development of T cell-based therapies for Hodgkin’s lymphoma (HL), we have assessed the expression and function of homing receptors on tumour-inWltrating T cells in HL and compared them with T cells from unaVected lymph nodes and colorectal cancer tissue. Chemokine receptors CXCR3, CXCR4 and CCR7 were expressed on a large proportion of T cells within HL tissue and mediated chemotaxis to puriWed chemokine. The corresponding ligands (CXCL10, CXCL12, CCL21) were expressed on the malignant cells and/or vascular endothelium. Adhesion molecules including CD62L were widely expressed on HL-derived T cells and their corresponding ligands were detected on vessels within the tumour. This homing phenotype was distinct from T cells isolated from colorectal cancer, but matched closely the phenotype of T cells from unaVected lymph nodes. Thus, T cell recruitment to HL resembles entry of naïve/central memory T cells into normal lymph nodes. This has important implications for current approaches to treat HL using T cells activated and expanded in vitro that lack CCR7 and CD62L expression.
- Hodgkin’s lymphoma
- T cell homing
- tumour immunity
Machado, L., Jarrett, R., Morgan, S., Murray, P., Hunter, B., Hamilton, E., Crocker, J., Thomas, W., Steven, N., Ismail, T., Chapman, A., Adams, D. H., & Lee, S. P. (2009). Expression and function of T cell homing molecules in Hodgkin’s lymphoma. Cancer Immunology, Immunotherapy, 58(1), 85–94. https://doi.org/10.1007/s00262-008-0528-z