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Wang Q, Liu J, Chen D, Miao S, Wen J, Liu C, Xue S, Liu Y, Zhang Q, Shen Y. "Cluster Bomb" Based Bismuth Nano-in-Micro Spheres Formed Dry Powder Inhalation for Thermo-Radio Sensitization Effects of Lung Metastatic Breast Cancer. Adv Healthc Mater 2023; 12:e2202622. [PMID: 36601733 DOI: 10.1002/adhm.202202622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/24/2022] [Indexed: 01/06/2023]
Abstract
Lung metastatic breast cancer (LMBC) is mainly diagnosed through CT imaging and radiotherapy could be the most common method in the clinic to inhibit tumor proliferation. While the sensitivity of radiotherapy is always limited due to the hypoxic tumor microenvironment and high doses of irradiation easily induce systemic cytotoxicity. Metal-based materials applied as radiosensitizers have been widely investigated to improve efficiency and reduce the doses of irradiation. Herein, it is aimed to overcome these problems by designing biodegradable lipid-camouflaged bismuth-based nanoflowers (DP-BNFs) as both a photo-thermo-radiosensitizer to develop a novel photothermal therapy (PTT) and radiotherapy combination strategy for LMBC treatment. To achieve effective lung deposition, "Cluster Bomb" structure-based DP-BNFs nano-in-micro dry powder inhalation (DP-BNF@Lat-MPs) are formulated through spray-dried technology. The DP-BNFs "cluster" in the microsphere to improve their tumor-targeted lung deposition with a high fine particle fraction followed by burst releasing of DP-BNFs for targeting delivery and LMBC therapy. The DP-BNF@Lat-MPs exhibit excellent photothermal conversion efficiency, radiotherapy enhancement, and CT imaging ability in vitro, which synergistically inhibit cell proliferation and metastasis. In vitro and in vivo data prove that combining PTT and radiotherapy with DP-BNF@Lat-MPs as a thermo-radio dual-sensitizer significantly enhances LMBC tumor metastasis inhibition with good biocompatibility and low toxicity.
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Affiliation(s)
- Qiyue Wang
- School of Pharmaceutical Science, Nanjing Tech University, Nanjing, 211816, China
| | - Ji Liu
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Daquan Chen
- School of Pharmacy, Yantai University, 30 Qingquan Road, Yantai, 264005, China
| | - Si Miao
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Jing Wen
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Chang Liu
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Shushu Xue
- Department of Pharmacy, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Yang Liu
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Qingjie Zhang
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yan Shen
- Department of Pharmaceutics, State Key Laboratory of Nature Medicines, China Pharmaceutical University, Nanjing, 210009, China
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Stankovic-Brandl M, Radivojev S, Sailer P, Penz FK, Paudel A. Elucidation of the effect of added fines on the performance of dry powder inhalation formulations. Int J Pharm 2022; 629:122359. [DOI: 10.1016/j.ijpharm.2022.122359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 11/09/2022]
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Mahar R, Chakraborty A, Nainwal N. The influence of carrier type, physical characteristics, and blending techniques on the performance of dry powder inhalers. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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