Blockade of Na/H exchanger stimulates glioma tumor immunogenicity and enhances combinatorial TMZ and anti-PD-1 therapy.
Blockade of Na/H exchanger stimulates glioma tumor immunogenicity and enhances combinatorial TMZ and anti-PD-1 therapy.
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DOI:
10.1038/s41419-018-1062-3
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发表时间:
2018-09-27
影响因子:
9
通讯作者:
Sun D
中科院分区:
文献类型:
--
作者:
Guan X;Hasan MN;Begum G;Kohanbash G;Carney KE;Pigott VM;Persson AI;Castro MG;Jia W;Sun D
The weak immunogenicity of gliomas presents a barrier for effective immunotherapy. Na/H exchanger isoform 1 (NHE1) maintains alkaline intracellular pH (pHi) of glioma cells and acidic microenvironment. In addition, NHE1 is expressed in tumor-associated microglia and tumor-associated macrophages (TAMs) and involved in protumoral communications between glioma and TAMs. Therefore, we hypothesize that NHE1 plays a role in developing tumor resistance and immunosuppressive tumor microenvironment. In this study, we investigated the efficacy of pharmacological inhibition of NHE1 on combinatorial therapies. Here we show that temozolomide (TMZ) treatment stimulates NHE1 protein expression in two intracranial syngeneic mouse glioma models (SB28, GL26). Pharmacological inhibition of NHE1 potentiated the cytotoxic effects of TMZ, leading to reduced tumor growth and increased median survival of mice. Blockade of NHE1 stimulated proinflammatory activation of TAM and increased cytotoxic T cell infiltration into tumors. Combining TMZ, anti-PD-1 antibody treatment with NHE1 blockade significantly prolonged the median survival in the mouse glioma model. These results demonstrate that pharmacological inhibition of NHE1 protein presents a new strategy for potentiating TMZ-induced cytotoxicity and increasing tumor immunogenicity for immunotherapy to improve glioma therapy.
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影响因子:
8.8
作者:
Chang, G.;Wang, J.;Zhang, H.;Zhang, Y.;Wang, C.;Xu, H.;Zhang, H.;Lin, Y.;Ma, L.;Li, Q.;Pang, T.
通讯作者:
Pang, T.
DOI:
10.1016/j.tem.2017.02.009
发表时间:
2017-06
期刊:
Trends in endocrinology and metabolism: TEM
影响因子:
--
作者:
Gabriely G;Wheeler MA;Takenaka MC;Quintana FJ
通讯作者:
Quintana FJ
影响因子:
4.1
作者:
Cong D;Zhu W;Kuo JS;Hu S;Sun D
通讯作者:
Sun D
影响因子:
7.2
作者:
Binder DC;Davis AA;Wainwright DA
通讯作者:
Wainwright DA
影响因子:
11.2
作者:
Baker GJ;Chockley P;Yadav VN;Doherty R;Ritt M;Sivaramakrishnan S;Castro MG;Lowenstein PR
通讯作者:
Lowenstein PR