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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 Oncoimmunology
2017 ; 6
(6
): e1320011
Nephropedia Template TP
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CD39/CD73 upregulation on myeloid-derived suppressor cells via TGF-?-mTOR-HIF-1
signaling in patients with non-small cell lung cancer
#MMPMID28680754
Li J
; Wang L
; Chen X
; Li L
; Li Y
; Ping Y
; Huang L
; Yue D
; Zhang Z
; Wang F
; Li F
; Yang L
; Huang J
; Yang S
; Li H
; Zhao X
; Dong W
; Yan Y
; Zhao S
; Huang B
; Zhang B
; Zhang Y
Oncoimmunology
2017[]; 6
(6
): e1320011
PMID28680754
show ga
CD39/CD73-adenosine pathway has been recently defined as an important
tumor-induced immunosuppressive mechanism. We here documented a fraction of
CD11b(+)CD33(+) myeloid-derived suppressor cells (MDSCs) in peripheral blood and
tumor tissues from non-small cell lung cancer (NSCLC) patients expressed surface
ectonucleotidases CD39 and CD73. Tumor TGF-? stimulated CD39 and CD73 expression,
thereby inhibited T cell and NK cell activity, and protected tumor cells from the
cytotoxic effect of chemotherapy through ectonucleotidase activity.
Mechanistically, TGF-? triggered phosphorylation of mammalian target of
rapamycin, and subsequently activated hypoxia-inducible factor-1? (HIF-1?) that
induced CD39/CD73 expression on MDSCs. CD39 and CD73 on MDSCs, therefore, link
their immunosuppressive and chemo-protective effects to NSCLC progression,
providing novel targets for chemo-immunotherapeutic intervention.