Published in:
01-04-2016 | Symposium-in-writing paper
Natural killer cell immunosenescence in acute myeloid leukaemia patients: new targets for immunotherapeutic strategies?
Authors:
Beatriz Sanchez-Correa, Carmen Campos, Alejandra Pera, Juan M. Bergua, Maria Jose Arcos, Helena Bañas, Javier G. Casado, Sara Morgado, Esther Duran, Rafael Solana, Raquel Tarazona
Published in:
Cancer Immunology, Immunotherapy
|
Issue 4/2016
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Abstract
Several age-associated changes in natural killer (NK) cell phenotype have been reported that contribute to the defective NK cell response observed in elderly patients. A remodelling of the NK cell compartment occurs in the elderly with a reduction in the output of immature CD56bright cells and an accumulation of highly differentiated CD56dim NK cells. Acute myeloid leukaemia (AML) is generally a disease of older adults. NK cells in AML patients show diminished expression of several activating receptors that contribute to impaired NK cell function and, in consequence, to AML blast escape from NK cell immunosurveillance. In AML patients, phenotypic changes in NK cells have been correlated with disease progression and survival. NK cell-based immunotherapy has emerged as a possibility for the treatment of AML patients. The understanding of age-associated alterations in NK cells is therefore necessary to define adequate therapeutic strategies in older AML patients.