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Cytokines, Genetic Lesions and Signaling Pathways in Anaplastic Large Cell Lymphomas
Jean-Philippe Merlio1,2, Marshall E Kadin3,4
1Tumor Biology and Tumor Bank Laboratory, Centre Hospitalier et Universitaire de Bordeaux, 33600 Pessac, France.
Abstract:
ALCL is a tumor of activated T cells and possibly innate lymphoid cells with several subtypes according to clinical presentation and genetic lesions. On one hand, the expression of transcription factors and cytokine receptors triggers signaling pathways. On the other hand, ALCL tumor cells also produce many proteins including chemokines, cytokines and growth factors that affect patient symptoms. Examples are accumulation of granulocytes stimulated by IL-8, IL-17, IL-9 and IL-13; epidermal hyperplasia and psoriasis-like skin lesions due to IL-22; and fever and weight loss in response to IL-6 and IFN-γ. In this review, we focus on the biology of the main ALCL subtypes as the identification of signaling pathways and ALCL-derived cytokines offers opportunities for targeted therapies.
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