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Luo L, Xu F, Peng H, Luo Y, Tian X, Battaglia G, Zhang H, Gong Q, Gu Z, Luo K. Stimuli-responsive polymeric prodrug-based nanomedicine delivering nifuroxazide and doxorubicin against primary breast cancer and pulmonary metastasis. J Control Release 2019; 318:124-135. [PMID: 31838206 DOI: 10.1016/j.jconrel.2019.12.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/08/2019] [Accepted: 12/11/2019] [Indexed: 02/05/2023]
Abstract
Functionalized drug delivery systems against malignant lung metastasis of breast cancer have been extensively studied, while metastasis remains a challenging issue. We propose a new strategy to achieve eradication of primary breast cancer cells and inhibition of pulmonary metastasis. A cathepsin B/pH dual-sensitive block copolymer with a molecular weight of 92 kDa was synthesized to conjugate with doxorubicin (DOX). The copolymer-DOX was further loaded with nifuroxazide (NFX) to self-assemble co-prodrug-loaded micelles (CLM). CLM displayed a drug release pattern in response to pH/enzyme dual stimuli and was enzymatically biodegradable. CLM was demonstrated to reduce viability and inhibit migration and invasion of 4T1 murine breast cancer cells in vitro. After i.v. injection of CLM, its nanoscale size and stimuli-responsiveness facilitated delivery of drugs to the tumor site in mice. Enhanced anti-tumor efficacy and great anti-metastatic effects were found in both orthotropic and lung metastasis 4T1 breast cancer mice models. Meanwhile, histological immunofluorescence and immunohistochemical analyses revealed a high level of apoptosis, suppressed expression of matrix metalloproteinases and reduction in MDSCs infiltration, and all these contributed to inhibit pulmonary metastasis. CLM may be explored as a potential nanomedicine against breast cancer metastasis.
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Affiliation(s)
- Lei Luo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China.
| | - Fanshu Xu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China
| | - Huilan Peng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China
| | - Yonghuang Luo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China
| | - Xiaohe Tian
- Department of Chemistry, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, Hefei 230039, PR China
| | - Giuseppe Battaglia
- Department of Chemistry, Department of Chemical Engineering, University College London, UK
| | - Hu Zhang
- Amgen Bioprocessing Centre, Keck Graduate Institute, Claremont, CA 91711, USA
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Functional and molecular imaging Key Laboratory of Sichuan Province, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610041, China
| | - Zhongwei Gu
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Functional and molecular imaging Key Laboratory of Sichuan Province, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610041, China
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Functional and molecular imaging Key Laboratory of Sichuan Province, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610041, China.
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Sponholz S, Schirren M, Baldes N, Oguzhan S, Schirren J. Repeat resection for recurrent pulmonary metastasis of colorectal cancer. Langenbecks Arch Surg 2017; 402:77-85. [PMID: 28058514 DOI: 10.1007/s00423-016-1547-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 12/23/2016] [Indexed: 12/20/2022]
Abstract
PURPOSE Resection of recurrent lung metastases from colorectal cancer is not completely investigated. We analyzed overall survival and prognosticators after metastasectomy. METHODS We retrospectively reviewed our database of 238 patients with lung metastases of colorectal cancer, undergoing metastasectomy with systematic lymph node dissection from 1999 to 2014. Lymph node metastases were found in 55 patients, and liver metastases were found in 79 patients. RESULTS The 5- and 10-year survival rates for all patients were 48 and 32%. Of the 238 patients included in the study, 101 developed recurrent lung metastases (42.4%). Recurrence had no impact on survival (p = 0.474). The 5- and 10-year survival rates from the beginning of recurrence for all patients with recurrence were 40 and 25%. Overall, 52 patients had been reoperated for recurrent lung metastases. 5-year survival for reoperated patients was 75% and significantly prolonged compared with nonreoperated patients (p < 0.001). Also, survival from beginning of recurrence was significantly longer (p < 0.001). Recurrence was more often detected in the case of multiple metastases (p = 0.002) and atypical resections (p = 0.029) at first metastasectomy. Lymph node metastases (p = 0.084) and liver metastases (p = 0.195) had no influence on recurrence. For reoperated patients, lower grading of the primary tumor was the only independent prognosticator for survival in multivariate analyses (p = 0.044). CONCLUSION Good long-term survival is achievable for patients with resectable recurrent lung metastases. Multiple metastases and atypical resection at first metastasectomy were associated with recurrent disease. Neither lymph node metastases nor liver metastases were significantly associated with recurrence. Lower grading of the primary tumor was the only independent prognosticator for survival. All in all, the factors that can be influenced by the surgeon are patient selection and R0 resection.
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Affiliation(s)
- Stefan Sponholz
- Department of Thoracic Surgery, Helios Dr. Horst Schmidt Klinik, Helios Kliniken Gruppe, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany.
| | - Moritz Schirren
- Department of Thoracic Surgery, Helios Dr. Horst Schmidt Klinik, Helios Kliniken Gruppe, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany
| | - Natalie Baldes
- Department of Thoracic Surgery, Helios Dr. Horst Schmidt Klinik, Helios Kliniken Gruppe, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany
| | - Selma Oguzhan
- Department of Thoracic Surgery, Helios Dr. Horst Schmidt Klinik, Helios Kliniken Gruppe, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany
| | - Joachim Schirren
- Department of Thoracic Surgery, Helios Dr. Horst Schmidt Klinik, Helios Kliniken Gruppe, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany
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Jiménez Fuentes E, Arrieta Rodriguez OG, Herrera Gómez Á, Chinchilla Trigos LA. Metástasis a pulmón: manejo individualizado. GACETA MEXICANA DE ONCOLOGÍA 2016. [DOI: 10.1016/j.gamo.2016.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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