» Articles » PMID: 25940792

Chronic Lymphocytic Leukaemia Induces an Exhausted T Cell Phenotype in the TCL1 Transgenic Mouse Model

Overview
Journal Br J Haematol
Specialty Hematology
Date 2015 May 6
PMID 25940792
Citations 26
Authors
Affiliations
Soon will be listed here.
Abstract

Although chronic lymphocytic leukaemia (CLL) is a B cell malignancy, earlier studies have indicated a role of T cells in tumour growth and disease progression. In particular, the functional silencing of antigen-experienced T cells, called T cell exhaustion, has become implicated in immune evasion in CLL. In this study, we tested whether T cell exhaustion is recapitulated in the TCL1(tg) mouse model for CLL. We show that T cells express high levels of the inhibitory exhaustion markers programmed cell death 1 (PDCD1, also termed PD-1) and lymphocyte-activation gene 3 (LAG3), whereas CLL cells express high levels of CD274 (also termed PD-ligand 1). In addition, the fraction of exhausted T cells increases with CLL progression. Finally, we demonstrate that exhausted T cells are reinvigorated towards CLL cytotoxicity by inhibition of PDCD1/CD274 interaction in vivo. These results suggest that T cell exhaustion contributes to CLL pathogenesis and that interference with PDCD1/CD274 signalling holds high potential for therapeutic approaches.

Citing Articles

Aging-induced immune microenvironment remodeling fosters melanoma in male mice via γδ17-Neutrophil-CD8 axis.

Duan R, Jiang L, Wang T, Li Z, Yu X, Gao Y Nat Commun. 2024; 15(1):10860.

PMID: 39738047 PMC: 11685811. DOI: 10.1038/s41467-024-55164-3.


Assaying and classifying T cell function by cell morphology.

Wang X, Fernandes S, Brown J, Kam L BioMedInformatics. 2024; 4(2):1144-1154.

PMID: 39525274 PMC: 11542667. DOI: 10.3390/biomedinformatics4020063.


Clinical significance of T helper cell subsets in the peripheral blood and bone marrow of patients with multiple myeloma.

Zhang L, Zhong H, Fan J, Mao J, Li Y Front Immunol. 2024; 15:1445530.

PMID: 39324138 PMC: 11422089. DOI: 10.3389/fimmu.2024.1445530.


BET inhibition reforms the immune microenvironment and alleviates T cell dysfunction in chronic lymphocytic leukemia.

Smith A, Skupa S, Eiken A, Reznicek T, Schmitz E, Williams N JCI Insight. 2024; 9(10).

PMID: 38775157 PMC: 11141939. DOI: 10.1172/jci.insight.177054.


Immune checkpoint expression patterns on T cell subsets in light-chain amyloidosis: VISTA, PD-1, and TIGIT as potential therapeutic targets.

Wang J, Zhao Y, Liao P, Huang S, Huang Y, Chen S Blood Sci. 2024; 6(1):e00181.

PMID: 38226018 PMC: 10789457. DOI: 10.1097/BS9.0000000000000181.


References
1.
Baitsch L, Fuertes-Marraco S, Legat A, Meyer C, Speiser D . The three main stumbling blocks for anticancer T cells. Trends Immunol. 2012; 33(7):364-72. DOI: 10.1016/j.it.2012.02.006. View

2.
Wolchok J, Kluger H, Callahan M, Postow M, Rizvi N, Lesokhin A . Nivolumab plus ipilimumab in advanced melanoma. N Engl J Med. 2013; 369(2):122-33. PMC: 5698004. DOI: 10.1056/NEJMoa1302369. View

3.
Brusa D, Serra S, Coscia M, Rossi D, DArena G, Laurenti L . The PD-1/PD-L1 axis contributes to T-cell dysfunction in chronic lymphocytic leukemia. Haematologica. 2013; 98(6):953-63. PMC: 3669453. DOI: 10.3324/haematol.2012.077537. View

4.
Mackus W, Frakking F, Grummels A, Gamadia L, de Bree G, Hamann D . Expansion of CMV-specific CD8+CD45RA+CD27- T cells in B-cell chronic lymphocytic leukemia. Blood. 2003; 102(3):1057-63. DOI: 10.1182/blood-2003-01-0182. View

5.
Johnson A, Lucas D, Muthusamy N, Smith L, Edwards R, De Lay M . Characterization of the TCL-1 transgenic mouse as a preclinical drug development tool for human chronic lymphocytic leukemia. Blood. 2006; 108(4):1334-8. PMC: 1895879. DOI: 10.1182/blood-2005-12-011213. View