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GSH-Responsive Nanoprodrug to Inhibit Glycolysis and Alleviate Immunosuppression for Cancer Therapy
Nano Letters ( IF 9.6 ) Pub Date : 2021-09-08 , DOI: 10.1021/acs.nanolett.1c03089
Xiaohan Liu 1 , Yanhua Li 1 , Kaiye Wang 1 , Yuanyuan Chen 1 , Mingwan Shi 1 , Xia Zhang 1 , Wei Pan 1 , Na Li 1 , Bo Tang 1
Affiliation  

Blocking energy metabolism of cancer cells and simultaneously stimulating the immune system to perform immune attack are significant for cancer treatment. However, how to potently deliver different drugs with these functions remains a challenge. Herein, we synthesized a nanoprodrug formed by a F127-coated drug dimer to inhibit glycolysis of cancer cells and alleviate the immunosuppressive microenvironment. The dimer was delicately constructed to connect lonidamine (LND) and NLG919 by a disulfide bond which can be cleaved by excess GSH to release two drugs. LND can decrease the expression of hexokinase II and destroy mitochondria to restrain glycolysis for energy supply. NLG919 can reduce the accumulation of kynurenine and the number of regulatory T cells, thus alleviating the immunosuppressive microenvironment. Notably, the consumption of GSH by disulfide bond increased the intracellular oxidative stress and triggered immunogenic cell death of cancer cells. This strategy can offer more possibilities to explore dimeric prodrugs for synergistic cancer therapy.

中文翻译:

GSH 响应纳米前药抑制糖酵解和减轻癌症治疗的免疫抑制

阻断癌细胞的能量代谢,同时刺激免疫系统进行免疫攻击,对癌症治疗具有重要意义。然而,如何有效地输送具有这些功能的不同药物仍然是一个挑战。在此,我们合成了一种由 F127 包被的药物二聚体形成的纳米前药,以抑制癌细胞的糖酵解并缓解免疫抑制微环境。该二聚体经过精心构建,通过二硫键连接氯尼达明 (LND) 和 NLG919,二硫键可被过量 GSH 裂解以释放两种药物。LND可以降低己糖激酶II的表达并破坏线粒体以抑制糖酵解提供能量。NLG919 可以减少犬尿氨酸的积累和调节性 T 细胞的数量,从而缓解免疫抑制微环境。尤其,通过二硫键消耗 GSH 会增加细胞内氧化应激并引发癌细胞的免疫原性细胞死亡。该策略可以为探索用于协同癌症治疗的二聚体前药提供更多可能性。
更新日期:2021-09-22
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