|
1
|
Chen S, Wang C, Meng Y, Li P, Pan Y, He M, Ni X. Nanofabrications of Erythrocyte Membrane-Coated Telmisartan Delivery System Effective for Radiosensitivity of Tumor Cells in Mice Model. Int J Nanomedicine 2024; 19:1487-1508. [PMID: 38380147 PMCID: PMC10878400 DOI: 10.2147/ijn.s441418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/30/2024] [Indexed: 02/22/2024] Open
Abstract
Background Radiation stimulates the secretion of tumor stroma and induces resistance, recurrence, and metastasis of stromal-vascular tumors during radiotherapy. The proliferation and activation of tumor-associated fibroblasts (TAFs) are important reasons for the production of tumor stroma. Telmisartan (Tel) can inhibit the proliferation and activation of TAFs (resting TAFs), which may promote radiosensitization. However, Tel has a poor water solubility. Methods In this study, self-assembled telmisartan nanoparticles (Tel NPs) were prepared by aqueous solvent diffusion method to solve the insoluble problem of Tel and achieve high drug loading of Tel. Then, erythrocyte membrane (ECM) obtained by hypotonic lysis was coated on the surface of Tel NPs (ECM/Tel) for the achievement of in vivo long circulation and tumor targeting. Immunofluorescence staining, western blot and other biological techniques were used to investigate the effect of ECM/Tel on TAFs activation inhibition (resting effect) and mechanisms involved. The multicellular spheroids (MCSs) model and mouse breast cancer cells (4T1) were constructed to investigate the effect of ECM/Tel on reducing stroma secretion, alleviating hypoxia, and the corresponding promoting radiosensitization effect in vitro. A mouse orthotopic 4T1 breast cancer model was constructed to investigate the radiosensitizing effect of ECM/Tel on inhibiting breast cancer growth and lung metastasis of breast cancer. Results ECM/Tel showed good physiological stability and tumor-targeting ability. ECM/Tel could rest TAFs and reduce stroma secretion, alleviate hypoxia, and enhance penetration in tumor microenvironment. In addition, ECM/Tel arrested the cell cycle of 4T1 cells to the radiosensitive G2/M phase. In mouse orthotopic 4T1 breast cancer model, ECM/Tel played a superior role in radiosensitization and significantly inhibited lung metastasis of breast cancer. Conclusion ECM/Tel showed synergistical radiosensitization effect on both the tumor microenvironment and tumor cells, which is a promising radiosensitizer in the radiotherapy of stroma-vascular tumors.
Collapse
Affiliation(s)
- Shaoqing Chen
- Department of Radiotherapy, the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu, 213003, People’s Republic of China
- Jiangsu Province Engineering Research Center of Medical Physics, Changzhou, Jiangsu, 213003, People’s Republic of China
| | - Cheng Wang
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, People’s Republic of China
| | - Yanyan Meng
- Department of Radiotherapy, the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu, 213003, People’s Republic of China
- Jiangsu Province Engineering Research Center of Medical Physics, Changzhou, Jiangsu, 213003, People’s Republic of China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, People’s Republic of China
| | - Pengyin Li
- Department of Radiotherapy, the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu, 213003, People’s Republic of China
- Jiangsu Province Engineering Research Center of Medical Physics, Changzhou, Jiangsu, 213003, People’s Republic of China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, People’s Republic of China
| | - Yiwen Pan
- Department of Radiotherapy, the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu, 213003, People’s Republic of China
- Jiangsu Province Engineering Research Center of Medical Physics, Changzhou, Jiangsu, 213003, People’s Republic of China
- School of Pharmacy, Changzhou University, Changzhou, Jiangsu, 213164, People’s Republic of China
| | - Mu He
- Department of Radiotherapy, the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu, 213003, People’s Republic of China
- Jiangsu Province Engineering Research Center of Medical Physics, Changzhou, Jiangsu, 213003, People’s Republic of China
| | - Xinye Ni
- Department of Radiotherapy, the Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou, Jiangsu, 213003, People’s Republic of China
- Jiangsu Province Engineering Research Center of Medical Physics, Changzhou, Jiangsu, 213003, People’s Republic of China
| |
Collapse
|