肝细胞癌
一氧化氮
化学
药物输送
癌症研究
硫化氢
缺氧(环境)
介孔二氧化硅
肝癌
医学
介孔材料
生物化学
氧气
催化作用
有机化学
硫黄
作者
Junjie Fu,Yong Mao,Jing Han,Pengfei Zhang,Yunying Tan,Jing Hu,Peter H. Seeberger,Jian Yin
出处
期刊:Biomaterials advances
日期:2022-11-24
卷期号:144: 213209-213209
被引量:3
标识
DOI:10.1016/j.bioadv.2022.213209
摘要
A drug delivery system (DDS) based on gold-capped mesoporous silica nanoparticles (MSN) is fabricated for loading NOSH-aspirin, a nitric oxide (NO) and hydrogen sulfide (H2S) dual-donating cytotoxic molecule. The liver targeting and tumor microenvironment responsive properties of the nanosystem enable, for the first time, the concurrent delivery of NO and H2S from a DDS into hepatocellular carcinoma (HCC) cells. Combined gas-radiotherapy (GT-RT) from drug-loaded DDS (NOSH@MSN-Au-Gal) and X-ray irradiation shows highly synergistic anti-cancer activity against both normoxic and hypoxic HCC cells. Further studies revealed that the combined GT-RT not only retains the well-known anticancer mechanism of NO, H2S, and X-ray individually, but also alleviates HCC hypoxia via NO- and H2S- involved unique pathways. In mice, the GT-RT greatly slows the growth of both subcutaneous and orthotopic HCC tumors and shows high biocompatibility. The current work is expected to promote the clinical application of combined GT-RT as an effective cancer treatment.
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