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Guo H, Huang T, Dai Y, Fan Q, Zhang Y, He Y, Huang S, He X, Hu P, Chen G, Zhu W, Zhong Z, Liu D, Lu L, Zhang F. A Functional Stent Encapsulating Radionuclide in Temperature-Memory Spiral Tubes for Malignant Stenosis of Esophageal Cancer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2307141. [PMID: 37929924 DOI: 10.1002/adma.202307141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/22/2023] [Indexed: 11/07/2023]
Abstract
Stent implantation is a commonly used palliative treatment for alleviating stenosis in advanced esophageal cancer. However, tissue proliferation induced by stent implantation and continuous tumor growth can easily lead to restenosis. Therefore, functional stents are required to relieve stenosis while inhibiting tissue proliferation and tumor growth, thereby extending the patency. Currently, no ideal functional stents are available. Here, iodine-125 (125 I) nuclides are encapsulated into a nickel-titanium alloy (NiTi) tube to develop a novel temperature-memory spiral radionuclide stent (TSRS). It has the characteristics of temperature-memory, no cold regions at the end of the stent, and a uniform spatial dose distribution. Cell-viability experiments reveal that the TSRS can reduce the proliferation of fibroblasts and tumor cells. TSRS implantation is feasible and safe, has no significant systemic radiotoxicity, and can inhibit in-stent and edge stenosis caused by stent-induced tissue proliferation in healthy rabbits. Moreover, TSRS can improve malignant stenosis and luminal patency resulting from continuous tumor growth in a VX2 esophageal cancer model. As a functional stent, the TSRS combines the excellent properties of NiTi with brachytherapy of the 125 I nuclide and will make significant contributions to the treatment of malignant esophageal stenosis.
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Affiliation(s)
- Huanqing Guo
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
| | - Tao Huang
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
| | - Yi Dai
- Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Qichao Fan
- Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Yanling Zhang
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
| | - Yao He
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Shuke Huang
- Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Xiaofeng He
- Vascular and Interventional Therapy Department, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, P. R. China
| | - Pan Hu
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
| | - Guanyu Chen
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
| | - Wenliang Zhu
- Department of Minimally Invasive & Interventional Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, P. R. China
| | - Zhihui Zhong
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
| | - Dengyao Liu
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
- Department of Interventional Radiology, Cancer Hospital Affiliated to Xinjiang Medical University, Urumqi, 830011, P. R. China
| | - Ligong Lu
- Zhuhai Interventional Medical Center, Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital, Zhuhai Hospital Affiliated with Jinan University, Zhuhai, 519000, P. R. China
| | - Fujun Zhang
- Department of Minimally Invasive Intervention, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, 510060, P. R. China
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Taherparvar P, Fardi Z. Comparison between dose distribution from 103Pd, 131Cs, and 125I plaques in a real human eye model with different tumor size. Appl Radiat Isot 2022; 182:110146. [DOI: 10.1016/j.apradiso.2022.110146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 11/17/2022]
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