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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2018 ; 9
(1
): 2611
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miR-130a and miR-145 reprogram Gr-1(+)CD11b(+) myeloid cells and inhibit tumor
metastasis through improved host immunity
#MMPMID29973593
Ishii H
; Vodnala SK
; Achyut BR
; So JY
; Hollander MC
; Greten TF
; Lal A
; Yang L
Nat Commun
2018[Jul]; 9
(1
): 2611
PMID29973593
show ga
Tumor-derived soluble factors promote the production of Gr-1(+)CD11b(+) immature
myeloid cells, and TGF? signaling is critical in their immune suppressive
function. Here, we report that miR-130a and miR-145 directly target TGF? receptor
II (T?RII) and are down-regulated in these myeloid cells, leading to increased
T?RII. Ectopic expression of miR-130a and miR-145 in the myeloid cells decreased
tumor metastasis. This is mediated through a downregulation of type 2 cytokines
in myeloid cells and an increase in IFN?-producing cytotoxic CD8 T lymphocytes.
miR-130a- and miR-145-targeted molecular networks including TGF? and IGF1R
pathways were correlated with higher tumor stages in cancer patients. Lastly,
miR-130a and miR-145 mimics, as well as IGF1R inhibitor NT157 improved anti-tumor
immunity and inhibited metastasis in preclinical mouse models. These results
demonstrated that miR-130a and miR-145 can reprogram tumor-associated myeloid
cells by altering the cytokine milieu and metastatic microenvironment, thus
enhancing host antitumor immunity.