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논문 기본 정보

자료유형
학술저널
저자정보
Tongyu Li (The First Affiliated Hospital, Zhejiang University School of Medicine) Weiwei Shi (The First Medical Center, Chinese PLA General Hospital) Jie Yao (The First Affiliated Hospital, Zhejiang University School of Medicine) Jingyun Hu (Central Lab, Shanghai Key Laboratory of Pathogenic Fungi Medical Testing, Shanghai Pudong New Area) Qiong Sun (The First Medical Center, Chinese PLA General Hospital) Jing Meng (The First Medical Center, Chinese PLA General Hospital) Jian Wan (Department of Emergency and Critical Care Medicine, Shanghai Pudong New Area People’s Hospital) Haihan Song (Central Lab, Shanghai Key Laboratory of Pathogenic Fungi Medical Testing, Shanghai Pudong New Area) Hangxiang Wang (The First Affiliated Hospital, Zhejiang University School of Medicine)
저널정보
한국생체재료학회 생체재료학회지 생체재료학회지 제26권 제1호
발행연도
2022.3
수록면
85 - 102 (18page)
DOI
https://doi.org/10.1186/s40824-022-00249-7

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Background: Circular RNAs (circRNAs) have important functions in many fields of cancer biology. In particular, we previously reported that the oncogenic circRNA, circPRMT5, has a major role in bladder cancer progression. Therapy based on circRNAs have good prospects as anticancer strategies. While anti-circRNAs are emerging as therapeutics, the specific in vivo delivery of anti-circRNAs into cancer cells has not been reported and remains challenging. Methods: Synthesized chrysotile nanotubes (SCNTs) with a relatively uniform length (~ 200 nm) have been designed to deliver an siRNA against the oncogenic circPRMT5 (si-circPRMT5) inhibit circPRMT5. In addition, the antitumor effects and safety evaluation of SCNTs/si-circPRMT5 was assessed with a series of in vitro and in vivo assays. Results: The results showed that SCNTs/si-circPRMT5 nanomaterials prolong si-circPRMT5’s half-life in circulation, enhance its specific uptake by tumor cells, and maximize the silencing efficiency of circPRMT5. In vitro, SCNTs encapsulating si-circPRMT5 could inhibit bladder cancer cell growth and progression. In vivo, SCNTs/si-circPRMT5 inhibited growth and metastasis in three bladder tumor models (a subcutaneous model, a tail vein injection lung metastatic model, and an in situ model) without obvious toxicities. Mechanistic study showed that SCNTs/si circPRMT5 regulated the miR-30c/SNAIL1/E-cadherin axis, inhibiting bladder cancer growth and progression. Conclusion: The results highlight the potential therapeutic utility of SCNTs/si-circPRMT5 to deliver si-circPRMT5 to treat bladder cancer. Keywords: Synthesized chrysotile nanomaterials, Gene therapy, Targeted delivery, CircPRMT5, SiRNA, Bladder cancer

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