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논문 기본 정보

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학술저널
저자정보
Hao Jiang (The First Hospital of Ningbo University) Hailong Tian (State Key Laboratory of Biotherapy and Cancer Center West China School of Basic Medical Sciences & Forensic Medicine Collaborative Innovation Center for Bio therapy West China Hospital Sichuan Univers) Zhihan Wang (State Key Laboratory of Biotherapy and Cancer Center West China School of Basic Medical Sciences & Forensic Medicine Collaborative Innovation Center for Bio therapy West China Hospital Sichuan Univers) Bowen Li (State Key Laboratory of Biotherapy and Cancer Center West China School of Basic Medical Sciences & Forensic Medicine Collaborative Innovation Center for Bio therapy West China Hospital Sichuan Univers) Rui Chen (The First Hospital of Ningbo University) Kangjia Luo (The First Hospital of Ningbo University) Shuaijun Lu (The First Hospital of Ningbo University) Edouard C. Nice (Department of Biochemistry and Molecular Biology Monash University) Wei Zhang (State Key Laboratory of Biotherapy and Cancer Center West China School of Basic Medical Sciences & Forensic Medicine Collaborative Innovation Center for Bio therapy West China Hospital Sichuan Univers) Canhua Huang (The First Hospital of Ningbo University) Yuping Zhou (The First Hospital of Ningbo University) Shaojiang Zheng (Hainan Cancer Center and Tumor Institute The First Afliated Hospital of Hainan Medical University) Feng Gao (The First Hospital of Ningbo University)
저널정보
한국생체재료학회 생체재료학회지 생체재료학회지 제27권
발행연도
2023.3
수록면
2,230 - 2,249 (20page)
DOI
https://doi.org/10.1186/s40824-023-00427-1

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BackgroundColorectal cancer (CRC) is the second most deadly cancer worldwide, with chemo-resistance remaining a major obstacle in CRC treatment. Notably, the imbalance of redox homeostasis-mediated ferroptosis and the modulation of hypoxic tumor microenvironment are regarded as new entry points for overcoming the chemo-resistance of CRC. MethodsInspired by this, we rationally designed a light-activatable oxygen self-supplying chemo-photothermal nanoplatform by co-assembling cisplatin (CDDP) and linoleic acid (LA)-tailored IR820 via enhanced ferroptosis against colorectal cancer chemo-resistance. In this nanoplatform, CDDP can produce hydrogen peroxide in CRC cells through a series of enzymatic reactions and subsequently release oxygen under laser-triggered photothermal to alleviate hypoxia. Additionally, the introduced LA can add exogenous unsaturated fatty acids into CRC cells, triggering ferroptosis via oxidative stress-related peroxidized lipid accumulation. Meanwhile, photothermal can efficiently boost the rate of enzymatic response and local blood flow, hence increasing the oxygen supply and oxidizing LA for enhanced ferroptosis. ResultsThis nanoplatform exhibited excellent anti-tumor efficacy in chemo-resistant cell lines and showed potent inhibitory capability in nude mice xenograft models. ConclusionsTaken together, this nanoplatform provides a promising paradigm via enhanced ferroptosis and alleviated hypoxia tumor microenvironment against CRC chemo-resistance.

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