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Hu K, Hou Z, Huang Y, Li X, Li X, Yang L. Recent development and future application of biodegradable ureteral stents. Front Bioeng Biotechnol 2024; 12:1373130. [PMID: 38572363 PMCID: PMC10987965 DOI: 10.3389/fbioe.2024.1373130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/06/2024] [Indexed: 04/05/2024] Open
Abstract
Ureteral stenting is a common clinical procedure for the treatment of upper urinary tract disorders, including conditions such as urinary tract infections, tumors, stones, and inflammation. Maintaining normal renal function by preventing and treating ureteral obstruction is the primary goal of this procedure. However, the use of ureteral stents is associated with adverse effects, including surface crusting, bacterial adhesion, and lower urinary tract symptoms (LUTS) after implantation. Recognizing the need to reduce the complications associated with permanent ureteral stent placement, there is a growing interest among both physicians and patients in the use of biodegradable ureteral stents (BUS). The evolution of stent materials and the exploration of different stent coatings have given these devices different roles tailored to different clinical needs, including anticolithic, antibacterial, antitumor, antinociceptive, and others. This review examines recent advances in BUS within the last 5 years, providing an in-depth analysis of their characteristics and performance. In addition, we present prospective insights into the future applications of BUS in clinical settings.
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Affiliation(s)
- Ke Hu
- Department of Urology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
- Research Center for Biomedical Materials, Engineering Research Center of Ministry of Education for Minimally Invasive Gastrointestinal Endoscopic Techniques, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhipeng Hou
- Research Center for Biomedical Materials, Engineering Research Center of Ministry of Education for Minimally Invasive Gastrointestinal Endoscopic Techniques, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuanbin Huang
- Department of Urology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xueying Li
- College of Computer Science and Engineering, Dalian Minzu University, Dalian, China
| | - Xiancheng Li
- Department of Urology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Liqun Yang
- Research Center for Biomedical Materials, Engineering Research Center of Ministry of Education for Minimally Invasive Gastrointestinal Endoscopic Techniques, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Institute for Eugenic Birth and Fertility, China Medical University, Shenyang, China
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Yang Y, Zhang R, Liang Z, Guo J, Chen B, Zhou S, Yu D. Application of Electrospun Drug-Loaded Nanofibers in Cancer Therapy. Polymers (Basel) 2024; 16:504. [PMID: 38399882 PMCID: PMC10892891 DOI: 10.3390/polym16040504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/03/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
In the 21st century, chemotherapy stands as a primary treatment method for prevalent diseases, yet drug resistance remains a pressing challenge. Utilizing electrospinning to support chemotherapy drugs offers sustained and controlled release methods in contrast to oral and implantable drug delivery modes, which enable localized treatment of distinct tumor types. Moreover, the core-sheath structure in electrospinning bears advantages in dual-drug loading: the core and sheath layers can carry different drugs, facilitating collaborative treatment to counter chemotherapy drug resistance. This approach minimizes patient discomfort associated with multiple-drug administration. Electrospun fibers not only transport drugs but can also integrate metal particles and targeted compounds, enabling combinations of chemotherapy with magnetic and heat therapies for comprehensive cancer treatment. This review delves into electrospinning preparation techniques and drug delivery methods tailored to various cancers, foreseeing their promising roles in cancer treatment.
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Affiliation(s)
- Yaoyao Yang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China; (R.Z.); (Z.L.); (J.G.); (B.C.); (S.Z.)
| | | | | | | | | | | | - Dengguang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China; (R.Z.); (Z.L.); (J.G.); (B.C.); (S.Z.)
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Li Z, Zhang W, Jiao D, Tian C, Xu K, Zhu H, Han X. All-in-one properties of an anticancer-covered airway stent for the prevention of malignant central airway obstruction. APL Bioeng 2023; 7:036116. [PMID: 37719298 PMCID: PMC10503995 DOI: 10.1063/5.0157341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 08/22/2023] [Indexed: 09/19/2023] Open
Abstract
Malignant central airway obstruction (MCAO) resulting from tumor metastasis and compression severely impairs respiration, posing life-threatening risks. To address this, we employed a synergistic modification strategy, combining cisplatin (CIS) and silver nanoparticles (AgNPs). Polycaprolactone (PCL) served as a drug carrier, enabling the preparation of a functional CIS@AgNPs@PCL fiber membrane-covered airway stent via electrospinning. This approach aimed to enhance the patency rate of MCAO. Characterization via ATR-FTIR, scanning electron microscope-energy-dispersive spectroscopy, and transmission electron microscope confirmed successful immobilization of CIS and AgNPs onto the stent surface. CIS@AgNPs@PCL substantially suppressed non-small cell lung cancer cells (A549), causing DNA damage, ultrastructural disruption, and over 50% apoptosis in 48 h. It also displayed potent antibacterial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans biofilms. A mouse subcutaneous tumor recurrence model assessed anti-cancer efficacy. CIS@AgNPs@PCL fiber-covered stents significantly inhibited lung cancer tissue and enhanced anti-cancer effects by up-regulating caspase-3 and Bax, while down-regulating Bcl-2. This study's functional airway stent provides a proof-of-concept for an integrated anti-cancer and antibacterial strategy. It promptly restores the lumen, inhibits biofilm formation, prevents tumor progression, and improves postoperative MCAO patency.
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Affiliation(s)
| | - Wenguang Zhang
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Dechao Jiao
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Chuan Tian
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Kaihao Xu
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
| | - Haidong Zhu
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing 210009, China
| | - Xinwei Han
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, China
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Shi W, Fuad ARM, Li Y, Wang Y, Huang J, Du R, Wang G, Wang Y, Yin T. Biodegradable polymeric nanoparticles increase risk of cardiovascular diseases by inducing endothelium dysfunction and inflammation. J Nanobiotechnology 2023; 21:65. [PMID: 36829180 PMCID: PMC9951517 DOI: 10.1186/s12951-023-01808-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/06/2023] [Indexed: 02/26/2023] Open
Abstract
Biodegradable polymers are expected to be an alternative to plastics. Because of its high biocompatibility, poly (lactic-co-glycolic acid) (PLGA) is widely used in medicine. It has been reported that micro-nano plastics can be accumulated in the circulatory system and cause tissue injury. With the increasing environmental exposure of degradable polymer nanoparticles (NPs), the impact of this risk factor on cardiovascular disease deserves attention. Thus, we aim to study the harmful effect of PLGA NPs on the process of vascular stenosis which is a typical pathological feature of cardiovascular diseases. We establish a mouse vascular stenosis model with intravenously injecting of PLGA NPs for 2 weeks. This model leads to a significant narrowing of the left common carotid artery which is characterized by the increasing intima area and focal stenosis. We observe that PLGA NPs accelerate stenosis progression by inducing inflammation and impairing vascular function. It promotes the proliferation of smooth muscle cells and causes abnormal collagen distribution. The combination of wall shear stress and PLGA NPs uptake speed up endothelial cell damage, decrease endothelial permeability and cell migration capacity. Our results suggest that PLGA NPs may pose a risk in cardiovascular stenosis which inspire us to concern the biodegradable polymeric materials in our living especially the clinic applications.
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Affiliation(s)
- Wen Shi
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Atik Rohmana Maftuhatul Fuad
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yanhong Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yang Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Junyang Huang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Ruolin Du
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China
| | - Yazhou Wang
- School of Medicine, Chongqing University, Chongqing, 400030, China.
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, China.
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Chen H, Liu S, Li X, Wang Z, Zhang C. Prognostic analysis of inflammatory response-related genes and biomarkers in patients with urothelial carcinoma of ureter. Front Genet 2023; 14:1139412. [PMID: 36936427 PMCID: PMC10017875 DOI: 10.3389/fgene.2023.1139412] [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: 01/07/2023] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Ureteral urothelial carcinoma is a common urinary system tumor, accounting for 40% to 60% of all ureteral diseases. This study attempted to analyze the prognosis of patients with urothelial carcinoma, judging ureteral urothelial carcinoma by genes and biomarkers of inflammatory response. In this paper, co-expression network analysis and gene-based image fusion evaluation methods were proposed to obtain the prognosis results of patients with ureteral urothelial carcinoma. The experimental results showed that the levels of PLR and NLR increased, and the levels of HGB and HCT decreased; high PLR and high NLR levels, low HGB and low HCT levels were all risk factors affecting bladder urothelial carcinoma, and their ratios (OR) were 1.023, 1.611, 0.961, 0.859, 1.015, 1.072, 0.979, and 0.951, respectively. However, high PLR and high NLR levels were independent risk factors for bladder urothelial carcinoma, and their OR values were 1.497 and 1.071, respectively. Through biomarker diagnosis, the area under the curve, sensitivity, specificity and Youden index of hsa-mir-17, hsa-mir-93, hsa-mir-429 and hsa-mir-20a all exceeded 0.9, indicating that this is a potential diagnostic indicators. All in all, during the treatment of ureteral cancer, in order to reduce tumor recurrence, systemic therapy should be combined with ureteral cancer. In addition, this study also analyzed the prognosis of chemotherapy patients, and the results showed that immunotherapy may increase the risk of tumor cell reperfusion during chemotherapy.
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Wang J, Wu M, Zhu Y, Wang Z, Cao H, Li X, Yin Y, Ren X, Tian Y, Guo Z, Zeng X. A Multilayer Nanofibrous Mat for the Topical Chemotherapy of the Positive Margin in Bladder Cancer. Tissue Eng Part A 2022; 28:958-967. [PMID: 36181351 PMCID: PMC9807279 DOI: 10.1089/ten.tea.2022.0096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Treatment of positive margins after solid tumor resection remains a significant challenge for clinicians. Owing to unique structural features, electrospun nanofibrous mats are promised to be an implantable antitumor system through the delivery of active agents in a controlled manner. In this study, we utilized sequential electrospinning to fabricate a multilayer mat in which gemcitabine (GEM) and cisplatin (CDDP) were electrospun individually in distinct layers. By designing the structure, the multilayer mat could deliver antitumor agents sustainedly and prolong the release of GEM, which is loaded in the inner layer. In vitro assays show that the multilayer mats effectively inhibit bladder cancer (BC) cells and elevate apoptosis. In animal models of BC, the implantable drug-loaded fibrous mat can effectively treat positive margins and prevent local recurrence. Moreover, the local delivery of GEM and CDDP significantly lowers liver toxicity compared with systemic chemotherapy. In summary, a multilayer nanofibrous mat is developed for the localized and controlled delivery of GEM, dramatically improving the treatment of residual tumors and preventing BC recurrence. Impact statement The designed multilayer nanofibrous mats can achieve two chemotherapeutic drugs (gemcitabine and cisplatin) co-loading and time-programmed sustained release, significantly improving our previous study. The antitumor effect of the drug-loaded mat in vivo and in vitro was sufficiently demonstrated. We expect to bring a new strategy of topical chemotherapy for treating positive surgical margins in bladder cancer.
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Affiliation(s)
- Jing Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Minglong Wu
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunpeng Zhu
- Department of Thoracic Surgery, and Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhixian Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Cao
- Department of Gynaecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xing Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yisheng Yin
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Ren
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiqun Tian
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zihao Guo
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyong Zeng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Address correspondence to: Xiaoyong Zeng, MD, PhD, Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan 430030, China
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Cytotoxicity Assessment of a New Design for a Biodegradable Ureteral Mitomycin Drug-Eluting Stent in Urothelial Carcinoma Cell Culture. Polymers (Basel) 2022; 14:polym14194081. [PMID: 36236029 PMCID: PMC9570871 DOI: 10.3390/polym14194081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/10/2022] [Accepted: 09/24/2022] [Indexed: 11/29/2022] Open
Abstract
Urothelial tumour of the upper urinary tract is a rare neoplasm, but unfortunately, it has a high recurrence rate. The reduction of these tumour recurrences could be achieved by the intracavitary instillation of adjuvant chemotherapy after nephron-sparing treatment in selected patients, but current instillation methods are ineffective. Therefore, the aim of this in vitro study is to evaluate the cytotoxic capacity of a new instillation technology through a biodegradable ureteral stent/scaffold coated with a silk fibroin matrix for the controlled release of mitomycin C as an anti-cancer drug. Through a comparative study, we assessed, in urothelial carcinoma cells in a human cancer T24 cell culture for 3 and 6 h, the cytotoxic capacity of mitomycin C by viability assay using the CCK-8 test (Cell counting Kit-8). Cell viability studies in the urothelial carcinoma cell line confirm that mitomycin C embedded in the polymeric matrix does not alter its cytotoxic properties and causes a significant decrease in cell viability at 6 h versus in the control groups. These findings have a clear biomedical application and could be of great use to decrease the recurrence rate in patients with upper tract urothelial carcinomas by increasing the dwell time of anti-cancer drugs.
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Solvent selection and its effect on crystallization behavior of poly(ε-caprolactone) in electrospun poly(ε-caprolactone)/poly (lactic-co-glycolic acid) blend fibers. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tan M, Xu Y, Gao Z, Yuan T, Liu Q, Yang R, Zhang B, Peng L. Recent Advances in Intelligent Wearable Medical Devices Integrating Biosensing and Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108491. [PMID: 35008128 DOI: 10.1002/adma.202108491] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/28/2021] [Indexed: 05/27/2023]
Abstract
The primary roles of precision medicine are to perform real-time examination, administer on-demand medication, and apply instruments continuously. However, most current therapeutic systems implement these processes separately, leading to treatment interruption and limited recovery in patients. Personalized healthcare and smart medical treatment have greatly promoted research on and development of biosensing and drug-delivery integrated systems, with intelligent wearable medical devices (IWMDs) as typical systems, which have received increasing attention because of their non-invasive and customizable nature. Here, the latest progress in research on IWMDs is reviewed, including their mechanisms of integrating biosensing and on-demand drug delivery. The current challenges and future development directions of IWMDs are also discussed.
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Affiliation(s)
- Minhong Tan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yang Xu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Ziqi Gao
- School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Tiejun Yuan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Qingjun Liu
- College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Rusen Yang
- School of Advanced Materials and Nanotechnology, Xidian University, Xian, 710126, P. R. China
| | - Bin Zhang
- School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Lihua Peng
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, P. R. China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, P. R. China
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Ojha AK, Rajasekaran R, Pandey AK, Dutta A, Seesala VS, Das SK, Chaudhury K, Dhara S. Nanotheranostics: Nanoparticles Applications, Perspectives, and Challenges. BIOSENSING, THERANOSTICS, AND MEDICAL DEVICES 2022:345-376. [DOI: 10.1007/978-981-16-2782-8_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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11
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Synergistic effects of silver nanoparticles and cisplatin in combating inflammation and hyperplasia of airway stents. Bioact Mater 2021; 9:266-280. [PMID: 34820570 PMCID: PMC8586718 DOI: 10.1016/j.bioactmat.2021.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/04/2021] [Accepted: 07/26/2021] [Indexed: 12/17/2022] Open
Abstract
Anti-inflammatory and antihyperplasia activities are essential requirements for the successful use of airway stents. In this work, silver nanoparticles (AgNPs) and cisplatin (DDP) were combined in a synergistic modification strategy to improve the surface function of airway stents. Using polycaprolactone (PCL) as a drug carrier, a dual-functional PCL-AgNPs-DDP fiber film-coated airway stent was fabricated by electrospinning. The physicochemical and biological properties of the obtained fiber films were examined. The ATR-FTIR, XPS, SEM-EDS and TEM results suggested that AgNPs and DDP could be successfully immobilized onto the airway stent surface. The drug release and surface degradation results revealed that AgNPs and DDP can undergo sustained release from films for 30 d, and the weight loss was approximately 50% after 35 d. In addition, the dual-functional fiber film suppressed human embryonic lung fibroblast growth and exhibited excellent antibacterial activity against Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans. Furthermore, the effectiveness of the dual-functional fiber film-coated airway stent was evaluated by application to the trachea of New Zealand rabbits. The in vivo results indicated that PCL-AgNPs-DDP fiber film-coated airway stent can significantly inhibit granulation tissue formation and collagen deposition, reduced the expression of IL-8, TNF-α, IL-1α, PCNA, α-SMA and CD68, and ultimately achieved anti-inflammatory and antihyperplasia effects. Hence, this study provides a dual-functional surface-coated airway stent to address the clinical complications associated with respiratory tract inflammation and granulation tissue hyperplasia, thus inhibiting tracheal stenosis. This study provides a dual-functional PCL-AgNPs-DDP nanofiber film-coated airway stent. The airway stent processes antibacterial activity and suppress CCC-HPF-1 growth. The stent inhibits tracheal stenosis by antiinflammatory and antihyperplasia treatment.
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Wang H, Jin Y, Chen Y, Luo Y, Lv S, Li M, Tao Y. Multifunctional hybrid sponge for in situ postoperative management to inhibit tumor recurrence. Biomater Sci 2021; 9:4066-4075. [PMID: 33908452 DOI: 10.1039/d1bm00085c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Disseminated tumor cells in bleeding and residual tumor cells in the resection tumor site are the primary factors that result in tumor recurrence after surgery. Safe and efficient local implantation of the drug depot system into the resection cavity to inhibit tumor recurrence would be of great benefit to reduce the mortality of postoperative patients. Here, a sandwich-like doxorubicin-triptolide-loaded fiber/(chitosan/gelatin) sponge, DTF/CGS, is fabricated, combining hemostatic, antibacterial, and chemotherapeutic capability. The CGS obtained via freeze-drying can efficiently prevent bleeding; meanwhile, the metastatic residual tumor cells are stuck with the clotted absorbed blood. Subsequently, dual drugs released from the electrospun fiber can further kill the stuck tumor cells in CGS and the disseminated tumor cells to significantly inhibit the tumor recurrence. This antitumor recurrence strategy by immediately implanting a multifunctional hybrid sponge for in situ postoperative management may possess great potential for preventing tumor recurrence.
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Affiliation(s)
- Haixia Wang
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yuanyuan Jin
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yanyan Chen
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yun Luo
- Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Shixian Lv
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China. and Guangdong Provincial Key Laboratory of Liver Disease, Guangzhou 510630, China
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13
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Wang T, Yu Z, Chen C, Song Y, Zeng X, Su Y, Yi C. Ureteral anastomosis with a polyimide stent in rat kidney transplantation. Ren Fail 2020; 42:193-199. [PMID: 32052680 PMCID: PMC7034071 DOI: 10.1080/0886022x.2020.1726386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Complications associated with ureteral anastomosis in kidney transplantation are highly prevalent, despite the development of various types of stents. The current stent materials and placement methods have several limitations. This study attempts to provide an alternative by investigating ureteral anastomosis with a polyimide stent and a modified placement method in a rat model of kidney transplantation.Methods: Sprague-Dawley rats were randomly divided into Group I: sham operation, Group II: autologous ureteral anastomosis, and Group III: isogenic kidney transplantation with ureteral anastomosis. For the anastomosis, a polyimide stent with a previously placed 11-0 silk was inserted into the ureter. The stent and ureter were fixed with 11-0 silk sutures. The kidney weight and serum creatinine were recorded. The ureteral and renal sections were taken for histological analysis.Results: None of the stents had migrated. Urethral patency was achieved. Further, there were no evident histological changes in the anastomosed ureters. The serum creatinine level in group III was significantly higher than the other two groups, but there was no significant difference in kidney weight among the groups at postoperative week 12. Finally, the histological structure of kidneys in groups II and III only showed minor changes.Conclusions: The current anastomosis method with polyimide stent causes minimal damage to the ureteral walls and minimizes the possibility of stent migration. Therefore, this method of ureteral anastomosis with the polyimide stent should be explored for its potential benefits in more animal kidney transplantation models, thus providing an alternative for the clinical setting.
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Affiliation(s)
- Tong Wang
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Zhou Yu
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Chen Chen
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China.,Department of Burn and Plastic Surgery, Hainan Branch of PLA General Hospital, Sanya, China
| | - Yajuan Song
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Xianhui Zeng
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yingjun Su
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Chenggang Yi
- Department of Plastic Surgery; Xijing Hospital, Air Force Medical University, Xi'an, China
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14
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Alsyouf M, Pierorazio P, Groegler J, Hu B. Chemoablation in Urothelial Carcinoma: A Systematic Review and Future Perspectives. Urology 2020; 144:28-37. [PMID: 32540302 DOI: 10.1016/j.urology.2020.05.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 11/28/2022]
Abstract
Chemoablation is an emerging treatment for urothelial carcinomas. This review provides an overview of the evidence for intracavitary chemoablation in the treatment of urothelial carcinomas. The benefits of such agents include a reduction in morbidity and diseased organ preservation. While numerous agents have shown promise, research is limited due to small patient cohorts, varying follow-up, and no standardized methodology to assess response. Therefore, to date, chemoablation has not been widely adopted. This may change as a novel mitomycin formulation has recently been approved for treating low-grade upper tract urothelial carcinoma. Future studies are ongoing which evaluate other promising chemoablation options in urothelial carcinoma.
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Affiliation(s)
- Muhannad Alsyouf
- Department of Urology, Loma Linda University Health, Loma Linda, CA
| | - Phillip Pierorazio
- Brady Urological Institute, Johns Hopkins School of Medicine, Baltimore, MD
| | - Jason Groegler
- Department of Urology, Loma Linda University Health, Loma Linda, CA
| | - Brian Hu
- Department of Urology, Loma Linda University Health, Loma Linda, CA.
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15
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Controlled release of doxycycline within core/shell
poly(ε‐caprolactone)
/poly(ethylene oxide) fibers via coaxial electrospinning. J Appl Polym Sci 2020. [DOI: 10.1002/app.49273] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Shan H, Cao Z, Chi C, Wang J, Wang X, Tian J, Yu B. Advances in Drug Delivery via Biodegradable Ureteral Stent for the Treatment of Upper Tract Urothelial Carcinoma. Front Pharmacol 2020; 11:224. [PMID: 32256347 PMCID: PMC7090156 DOI: 10.3389/fphar.2020.00224] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022] Open
Abstract
Drug eluting ureteral stent is an effective means for local drug delivery to the urinary tract. It can potentially solve a variety of upper urinary tract problems, such as stent-related urinary tract infections and discomfort, ureteral stricture, and neoplastic diseases. However, the release of drug elutes on the surface of biostable stents is unsustainable and uncontrollable. With the development of biomaterial science, the emergence of biodegradable ureteral stents (BUSs) provides a new approach for local drug delivery in the urinary tract. The drugs can be continuously released in a controlled manner from a drug-eluting BUS, when the stent degrades. Especially for the delivery of anti-tumor drugs, the stents can obviously improve the therapeutic effectiveness of the drugs by prolonging the contact duration of the drug and tumor cells. In addition, a secondary stent removal procedure can be avoided. The purpose of this review article is to provide an overview of anti-tumor drug-eluting BUSs and discuss the biomaterials and drug delivery systems of BUS that are currently being developed to deliver anti-tumor drugs for upper tract urothelial carcinoma.
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Affiliation(s)
- Hongli Shan
- Department of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China
| | - Zhongshuai Cao
- Department of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China
| | - Changliang Chi
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Jixue Wang
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Xiaoqing Wang
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Jingyan Tian
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Bing Yu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
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17
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Cleeton C, Keirouz A, Chen X, Radacsi N. Electrospun Nanofibers for Drug Delivery and Biosensing. ACS Biomater Sci Eng 2019; 5:4183-4205. [PMID: 33417777 DOI: 10.1021/acsbiomaterials.9b00853] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Early diagnosis and efficient treatment are of paramount importance to fighting cancers. Monitoring the foreign body response of a patient to treatment therapies also plays an important role in improving the care that cancer patients receive by their medical practitioners. As such, there is extensive research being conducted into ultrasensitive point-of-care detection systems and "smart" personalized anticancer drug delivery systems. Electrospun nanofibers have emerged as promising materials for the construction of nanoscale biosensors and therapeutic platforms because of their large surface areas, controllable surface conformation, good surface modification, complex pore structure, and high biocompatibility. Electrospun nanofibers are produced by electrospinning, which is a very powerful and economically viable method of synthesizing versatile and scalable assemblies from a wide array of raw materials. This review describes the theory of electrospinning, achievements, and problems currently faced in producing effective biosensors/drug delivery systems, in particular, for cancer diagnosis and treatment. Finally, insights into future prospects are discussed.
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Affiliation(s)
- Conor Cleeton
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, United Kingdom
| | - Antonios Keirouz
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, United Kingdom
| | - Xianfeng Chen
- School of Engineering, Institute for Bioengineering, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JL, United Kingdom
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, United Kingdom
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18
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Sun Y, Cheng S, Lu W, Wang Y, Zhang P, Yao Q. Electrospun fibers and their application in drug controlled release, biological dressings, tissue repair, and enzyme immobilization. RSC Adv 2019; 9:25712-25729. [PMID: 35530076 PMCID: PMC9070372 DOI: 10.1039/c9ra05012d] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022] Open
Abstract
Electrospinning is a method of preparing microfibers or nanofibers by using an electrostatic force to stretch the electrospinning fluid. Electrospinning has gained considerable attention in many fields due to its ability to produce continuous fibers from a variety of polymers and composites in a simple way. Electrospun nanofibers have many merits such as diverse chemical composition, easily adjustable structure, adjustable diameter, high surface area, high porosity, and good pore connectivity, which give them broad application prospects in the biomedical field. This review systematically introduced the factors influencing electrospinning, the types of electrospun fibers, the types of electrospinning, and the detailed applications of electrospun fibers in controlled drug release, biological dressings, tissue repair and enzyme immobilization fields. The latest progress of using electrospun fibers in these fields was summarized, and the main challenges to be solved in electrospinning technology were put forward.
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Affiliation(s)
- Yue Sun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences Jinan 250062 Shandong China
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan 250062 Shandong China +86-0531-82919706 +86-0531-82919706
| | - Shihong Cheng
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan 250062 Shandong China +86-0531-82919706 +86-0531-82919706
| | - Wenjuan Lu
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences Jinan 250062 Shandong China
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan 250062 Shandong China +86-0531-82919706 +86-0531-82919706
| | - Yanfeng Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences Jinan 250062 Shandong China
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan 250062 Shandong China +86-0531-82919706 +86-0531-82919706
| | - Pingping Zhang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences Jinan 250062 Shandong China
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan 250062 Shandong China +86-0531-82919706 +86-0531-82919706
| | - Qingqiang Yao
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences Jinan 250062 Shandong China
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Key Laboratory for Biotech-Drugs Ministry of Health, Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan 250062 Shandong China +86-0531-82919706 +86-0531-82919706
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Deng X, Zeng T, Li J, Huang C, Yu M, Wang X, Tan L, Zhang M, Li A, Hu J. Kidney-targeted triptolide-encapsulated mesoscale nanoparticles for high-efficiency treatment of kidney injury. Biomater Sci 2019; 7:5312-5323. [PMID: 31617509 DOI: 10.1039/c9bm01290g] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Insolubility and toxicity of TP restrict clinical applications in renal diseases. Here, TP-encapsulated mesoscale nanoparticles offer a new therapeutic strategy for renal diseases due to good biocompability, kidney targeting and slow release.
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