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2018 ; 8
(ä): 49
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Targeting Macrophages in Cancer: From Bench to Bedside
#MMPMID29594035
Poh AR
; Ernst M
Front Oncol
2018[]; 8
(ä): 49
PMID29594035
show ga
Macrophages are a major component of the tumor microenvironment and orchestrate
various aspects of immunity. Within tumors, macrophages can reversibly alter
their endotype in response to environmental cues, including hypoxia and stimuli
derived from other immune cells, as well as the extracellular matrix. Depending
on their activation status, macrophages can exert dual influences on
tumorigenesis by either antagonizing the cytotoxic activity immune cells or by
enhancing antitumor responses. In most solid cancers, increased infiltration with
tumor-associated macrophages (TAMs) has long been associated with poor patient
prognosis, highlighting their value as potential diagnostic and prognostic
biomarkers in cancer. A number of macrophage-centered approaches to anticancer
therapy have been investigated, and include strategies to block their
tumor-promoting activities or exploit their antitumor effector functions.
Integrating therapeutic strategies to target TAMs to complement conventional
therapies has yielded promising results in preclinical trials and warrants
further investigation to determine its translational benefit in human cancer
patients. In this review, we discuss the molecular mechanisms underlying the
pro-tumorigenic programming of macrophages and provide a comprehensive update of
macrophage-targeted therapies for the treatment of solid cancers.