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Ding Q, Li Z, Yang Y, Guo G, Luo F, Chen Z, Yang Y, Qian Z, Shi S. Preparation and therapeutic application of docetaxel-loaded poly(d,l-lactide) nanofibers in preventing breast cancer recurrence. Drug Deliv 2015; 23:2677-2685. [PMID: 26171813 DOI: 10.3109/10717544.2015.1048490] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to develop docetaxel (DTX)-loaded poly-d,l-lactide (PDLLA) nanofibers and evaluate their therapeutic effect in preventing local breast cancer recurrence. DTX was incorporated into biodegradable PDLLA nanofibers by electrospinning. The surface morphology of the DTX/PDLLA nanofibers was characterized using scanning electron microscopy and wide angle X-ray diffraction. The in vitro release behavior of DTX from the fiber mats was also studied in detail. The cytotoxicity of DTX/PDLLA nanofibers was evaluated by MTT assay in 4T1 breast cancer cells. Flow cytometry revealed that DTX/PDLLA nanofibers exhibited apoptotic activity in 4T1 cells. In vivo antitumor efficacy of DTX/PDLLA nanofibers was evaluated in BALB/c mice bearing local breast tumors. Locoregional recurrence after primary tumor resection decreased obviously in mice treated with subcutaneously (16.7%) administered DTX-loaded PDLLA nanofibers, compared with the blank PDLLA nanofibers (88.9%), systemic (75.0%) or locally (77.8%) administered DTX and the control group (100%) (p < 0.05). Finally, after subcutaneous transplantation in mice, the DTX/PDLLA scaffolds presented excellent biocompatibility, as exhibited by the minimal presence of inflammatory cells in the region surrounding the scaffolds. Our results suggest that DTX/PDLLA nanofibers could have great potential for clinical application requiring local chemotherapy.
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Affiliation(s)
- Qiuxia Ding
- a State Key Laboratory of Biotherapy and Cancer Center , West China Hospital, West China Medical School, Sichuan University , Chengdu , P.R. China.,b Departmentof Gynaecology and Obstetrics , Xinqiao Hospital, Third Military Medical University , Chongqing , China
| | - Zhi Li
- c Department of Gastroenterology , Affiliated Hospital (T.C.M) of Luzhou Medical College, Luzhou Medical College , Luzhou , China , and
| | - Yi Yang
- a State Key Laboratory of Biotherapy and Cancer Center , West China Hospital, West China Medical School, Sichuan University , Chengdu , P.R. China
| | - Gang Guo
- a State Key Laboratory of Biotherapy and Cancer Center , West China Hospital, West China Medical School, Sichuan University , Chengdu , P.R. China
| | - Feng Luo
- a State Key Laboratory of Biotherapy and Cancer Center , West China Hospital, West China Medical School, Sichuan University , Chengdu , P.R. China
| | - Zhengqiong Chen
- b Departmentof Gynaecology and Obstetrics , Xinqiao Hospital, Third Military Medical University , Chongqing , China
| | - Ying Yang
- b Departmentof Gynaecology and Obstetrics , Xinqiao Hospital, Third Military Medical University , Chongqing , China
| | - ZhiYong Qian
- a State Key Laboratory of Biotherapy and Cancer Center , West China Hospital, West China Medical School, Sichuan University , Chengdu , P.R. China
| | - Shuai Shi
- d School of Ophthalmology & Optometry and Eye Hospital, Institute of Biomedical Engineering, Wenzhou Medical University , Wenzhou , China
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