Abstract

Chronic lymphocytic leukemia(CLL)is a malignant hematologic disease with heterogeneous clinical course, about two thirds of patients exhibit a long survival, but the remaining third of patients show aggressiveness of disease or poor response to conventional treatment even drug resistance. Studies suggested that tumor microenvironment possesses a critical effect in CLL disease progression in recent years. Monocyte/macrophage, as animportantcomponensof tumor microenvironment, play a promotive role in the growth and drug reistance of tumor cells by direct cell-to-cell contact, secreting cytokines and suppressing antitumor responses. Therefore, exploring the monocyte/macrophage in CLL can provide theoreticbasis for target treatment of CLL. In this review, the function of monocyte/macrophage and recent advances in therapy of CLL are discussed.

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