Abstract：
:Natural killer (NK) cells safeguard against early tumor formation by destroying transformed target cells in a process referred to as NK immune surveillance. However, the immune escape mechanisms used by malignant brain tumors to subvert this innate type of immune surveillance remain unclear. Here we show that malignant glioma cells suppress NK immune surveillance by overexpressing the β-galactoside-binding lectin galectin-1. Conversely, galectin-1-deficient glioma cells could be eradicated by host NK cells before the initiation of an antitumor T-cell response. In vitro experiments demonstrated that galectin-1-deficient GL26-Cit glioma cells are ∼3-fold more sensitive to NK-mediated tumor lysis than galectin-1-expressing cells. Our findings suggest that galectin-1 suppression in human glioma could improve patient survival by restoring NK immune surveillance that can eradicate glioma cells. Cancer Res; 74(18); 5079-90. ©2014 AACR.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Baker GJ,Chockley P,Yadav VN,Doherty R,Ritt M,Sivaramakrishnan S,Castro MG,Lowenstein PRdoi
10.1158/0008-5472.CAN-14-1203subject
Has Abstractpub_date
2014-09-15 00:00:00pages
5079-90issue
18eissn
0008-5472issn
1538-7445pii
0008-5472.CAN-14-1203journal_volume
74pub_type
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