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Cancer Immunol Immunother. 2015 Jan;64(1):1-13. doi: 10.1007/s00262-014-1639-3. Epub 2014 Nov 29.

Tumor-induced myeloid dysfunction and its implications for cancer immunotherapy.

Author information

1
Department of Immunology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, 14263, USA.

Abstract

Immune function relies on an appropriate balance of the lymphoid and myeloid responses. In the case of neoplasia, this balance is readily perturbed by the dramatic expansion of immature or dysfunctional myeloid cells accompanied by a reciprocal decline in the quantity/quality of the lymphoid response. In this review, we seek to: (1) define the nature of the atypical myelopoiesis observed in cancer patients and the impact of this perturbation on clinical outcomes; (2) examine the potential mechanisms underlying these clinical manifestations; and (3) explore potential strategies to restore normal myeloid cell differentiation to improve activation of the host antitumor immune response. We posit that fundamental alterations in myeloid homeostasis triggered by the neoplastic process represent critical checkpoints that govern therapeutic efficacy, as well as offer novel cellular-based biomarkers for tracking changes in disease status or relapse.

PMID:
25432147
PMCID:
PMC4282948
DOI:
10.1007/s00262-014-1639-3
[Indexed for MEDLINE]
Free PMC Article

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