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Li J, Yu H, Kang Y, Niu K, Wang M, Jiang Y, Jiang N, Ding Z, Gan Z, Yu Q. STING Membrane Prevents Post-Surgery Tissue Adhesion and Tumor Recurrence of Colorectal Cancer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309655. [PMID: 38517062 DOI: 10.1002/adma.202309655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 02/21/2024] [Indexed: 03/23/2024]
Abstract
Surgery is the standard treatment regimen for resectable colorectal cancer (CRC). However, it is very hard to completely remove all cancer cells in clinical practice, leading to the high recurrence rates of the disease. Moreover, the post-surgery tissue adhesion greatly prevents the possibility of reoperation, significantly limiting the long-term surviving of CRC patients. To overcome CRC recurrence and avoid the post-surgery tissue adhesion, this work develops a novel stimulator of interferon genes "STING" membrane based on the coaxial electrospinning technology and hyaluronic acid modification. A reactive oxygen species responsive prodrug of gambogic acid (GB) and a potent STING agonist (CDN) are coloaded in the core-shell structure of the membrane, which endows the loaded drug with sustained and sequential release patterns. The localized delivery of GB and CDN can selectively induce efficient immunogenic cell death of cancer cells and then evoke the systemic anticancer immunity by activating the Cyclic GMP-AMP (cGAMP) synthase/STING pathway. As-designed "STING" membrane not only safely prevents tumor recurrence through the synergistic chemoimmunotherapy but also efficiently avoids the post-surgery tissue adhesion, facilitating the clinical intervention of CRC.
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Affiliation(s)
- Jianlin Li
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Haiwang Yu
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yan Kang
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Kun Niu
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ming Wang
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yitong Jiang
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ni Jiang
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhenshan Ding
- Department of Urology, China-Japan Friendship Hospitals, Beijing, 100029, China
| | - Zhihua Gan
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qingsong Yu
- The State Key Laboratory of Organic-inorganic Composites, Beijing Laboratory of Biomedical Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules (Ministry of Education), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
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Lee JR, Yang SW, Kwon CI, Kim KS, Park SH, Jang MJ, Kim GH, Sung MJ, Kim G, Son JS, Joung YK. Anti-fibrotic and anti-stricture effects of biodegradable biliary stents braided with dexamethasone-impregnated sheath/core structured monofilaments. Acta Biomater 2024; 178:137-146. [PMID: 38447810 DOI: 10.1016/j.actbio.2024.02.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 01/22/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
Endoscopic biliary stent insertion has been widely used for the treatment of benign biliary stricture (BBS). Thus, the development of stent materials in the perspectives of structure, mechanical properties, and biocompatibility has been also studied. However, conventional metal and plastic stents have several disadvantages, such as repeated procedures to remove or exchange them, dislodgment, restenosis, biocompatibility, and poor mechanical properties. Sustainable effectiveness, attenuation and prevention of fibrosis, and biocompatibility are key factors for the clinical application of stents to BBS treatment. In addition, loading drugs could show synergistic effects with stents' own performance. We developed a dexamethasone-eluting biodegradable stent (DBS) consisting of a sheath/core structure with outstanding mechanical properties and sustained release of dexamethasone, which maintained its functions in a BBS duct over 12 weeks in a swine model. The insertion of our DBS not only expanded BBS areas but also healed secondary ulcers as a result of the attenuation of fibrosis. After 16 weeks from the insertion, BBS areas were totally improved, and the DBS was degraded and thoroughly disappeared without re-intervention for stent removal. Our DBS would be an effective clinical tool for non-vascular diseases. STATEMENT OF SIGNIFICANCE: This study describes the insertion of a drug-eluting biodegradable stent (DBS) into the bile duct. The sheath/core structure of DBS confers substantial durability and a sustained drug release profile. Drug released from the DBS exhibited anti-fibrotic effects without inflammatory responses in both in vitro and in vivo experiments. The DBS maintained its function over 12 weeks after insertion into the common bile duct, expanding benign biliary stricture (BBS) and reducing inflammation to heal secondary ulcers in a swine BBS model. After 16 weeks from the DBS insertion, the DBS thoroughly disappeared without re-intervention for stent removal, resulting in totally improved BBS areas. Our findings not only spotlight the understanding of the sheath/core structure of the biodegradable stent, but also pave the way for the further application for non-vascular diseases.
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Affiliation(s)
- Ju-Ro Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Seung Won Yang
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science and Technology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Chang-Il Kwon
- Digestive Disease Center, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, Republic of Korea.
| | - Kyu Seok Kim
- Interventional Research Center, M. I. Tech, Co. Ltd., Pyeongtaek, Republic of Korea
| | - Se Hwan Park
- Interventional Research Center, M. I. Tech, Co. Ltd., Pyeongtaek, Republic of Korea
| | - Myeong Jin Jang
- Korea Textile Development Institute, Daegu 41842, Republic of Korea
| | - Ga Hee Kim
- Korea Textile Development Institute, Daegu 41842, Republic of Korea
| | - Min Je Sung
- Digestive Disease Center, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, Republic of Korea
| | - Gwangil Kim
- Department of Pathology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, Republic of Korea
| | - Jun Sik Son
- Korea Textile Development Institute, Daegu 41842, Republic of Korea.
| | - Yoon Ki Joung
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Division of Bio-Medical Science and Technology, University of Science and Technology, Daejeon 34113, Republic of Korea.
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Sun X, Huang D, Li G, Sun J, Zhang Y, Hu B, Xie M, Zhao M, Zhang X, Yu J, Li G. Artificial heart valve reinforced with silk woven fabric and poly (ethylene glycol) diacrylate hydrogels composite. Int J Biol Macromol 2024; 260:129485. [PMID: 38237838 DOI: 10.1016/j.ijbiomac.2024.129485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/30/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024]
Abstract
The present study describes the preparation of woven silk fabric (WSF) and poly(ethylene glycol) diacrylate (PEGDA) hydrogel composite reinforced artificial heart valve (SPAHV). Interestingly, the longitudinal and latitudinal elastic modulus of the SPAHV composite can achieve at 54.08 ± 3.29 MPa and 23.96 ± 2.18 MPa, respectively, while its volume/mass swelling ratio and water permeability was 1.9 %/2.8 % and 3 mL/(cm2∙min), respectively, revealing remarkable anisotropic mechanical properties, low water swelling property and water permeability. The in vitro & in vivo biocompatibility and anti-calcification ability of SPAHV were further examined using L929 mouse fibroblasts and Sprague Dawley (SD) male rat model under 8 weeks of subcutaneous implantation. The expression of pro-inflammatory cytokine TNF-α and anti-inflammatory cytokine IL-10 was determined by immunohistochemical staining, as well as the H&E staining and alizarin red staining were accessed. The results showed that the composites possess better biocompatibility, resistance to degradation and anti-calcification ability compared to the control group (p < 0.05). Thus, the SPAHV composite with robust mechanical properties and biocompatibility has potential application for artificial heart valves.
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Affiliation(s)
- Xuan Sun
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Di Huang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Guanqiang Li
- Dapartment of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China
| | - Jing Sun
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Yaoyu Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Bo Hu
- Dapartment of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China
| | - Maobin Xie
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, China
| | - Mengdi Zhao
- Department of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
| | - Xicheng Zhang
- Dapartment of Vascular Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215000, China.
| | - Jia Yu
- School of Physical Education, Department of Orthopedics, Orthopedic Institute, The First Affiliated Hospital of Soochow University, Suzhou 215021, China.
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, 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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Yu Z, Chan S, Wang X, Sun R, Wang M, Wang Z, Zuo X, Chen J, Zhang H, Chen W. 5-Fluorouracil Combined with Rutaecarpine Synergistically Suppresses the Growth of Colon Cancer Cells by Inhibiting STAT3. Drug Des Devel Ther 2023; 17:993-1006. [PMID: 37020802 PMCID: PMC10069641 DOI: 10.2147/dddt.s402824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023] Open
Abstract
Purpose To evaluate the effect of 5-fluorouracil (5-FU) combined with rutaecarpine (RUT) on the antiproliferative, anti-migratory, and apoptosis-promoting ability of colorectal cancer (CRC) cells and explore the underlying mechanism. Methods The antiproliferative effects of RUT and 5-FU on CRC cells were evaluated using MTT and colony formation assays. Anti-migration was assessed by cell scratch and transwell tests. The synergistic effect of RUT and 5-FU was assessed by isobologram and combination index analysis using CompuSyn software. The effects of RUT and 5-FU on cell apoptosis were detected by flow cytometry. Differences in protein expression levels with or without RUT and/or 5-FU treatment were assessed by Western blot. Moreover, a mouse xenograft model of CRC was established to investigate the antitumor effect of RUT and 5-FU in vivo, and Ki67 and cleaved caspase-3 expression was detected by immunofluorescence. Results In this study, we found that 5-FU combined with RUT can inhibit the proliferative, migratory, and antiapoptotic abilities of CRC cells to a significantly greater extent than either RUT or 5-FU alone both in vivo and in vitro. Western blot analysis showed that the level of signal transducer and activator of transcription 3 (STAT3) phosphorylation in CRC cells was significantly reduced after combination therapy compared with that seen with the respective monotherapies. In addition, combination therapy influenced the STAT3 signaling pathway, namely, it inhibited the expression of c-Myc, CDK4, and Bcl-2 while enhancing that of the proapoptotic protein cleaved caspase-3. Immunofluorescence staining further showed that the expression of Ki67 and cleaved caspase-3 was significantly downregulated and upregulated, respectively, in tumor tissues of mice treated with combination therapy compared with that observed with 5-FU treatment alone. Conclusion Combined therapy with 5-FU and RUT exerted a superior curative effect in CRC than treatment with either single drug alone and has potential as a novel therapeutic modality for the treatment of CRC.
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Affiliation(s)
- Zhen Yu
- Department of General Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Shixin Chan
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Xu Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Rui Sun
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Ming Wang
- Department of General Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Zhenglin Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Xiaomin Zuo
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Jiajie Chen
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
| | - Huabing Zhang
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, 230032, People’s Republic of China
| | - Wei Chen
- Department of General Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, People’s Republic of China
- Anhui Provincial Institute of Translational Medicine, Hefei, 230022, People’s Republic of China
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Du J, Liu J, Zhao Z, Dai J, Li K, Lin Y. Nonmetallic N/C Nanozyme Performs Continuous Consumption of Glu for Inhibition of Colorectal Cancer Cells. ACS APPLIED BIO MATERIALS 2023; 6:267-276. [PMID: 36573905 DOI: 10.1021/acsabm.2c00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Colorectal cancer (CRC) is the third leading cause of cancer-related mortality. 5-Fluorouracil (5-FU) is the first choice for treatment of CRC, but it cannot avoid the negative effects from local high glucose (Glu) in tumor. Recently, 5-FU therapy has been combined with other treatment modalities for CRC synergistic therapy. Although these combination therapy strategies are more effective in cancer therapy, the toxicity side effects to the liver and cause metabolic acidosis still exist. Herein, we report an emerging amorphous honeycomb-like nitrogen-doped carbon (N/C) nanozyme with nicotinamide adenine dinucleotide (NADH) oxidase and catalase (CAT) activity and cascade it with natural glucose dehydrogenase (GDH) to realize NAD+ regeneration and further hyperglycemia management. In this case, by the coupling of N/C nanozyme with natural GDH to form a N/C-GDH system, the electron transfer route can switch from Glu to a common but limited electron receptor, i.e., NAD+ to ubiquitous large amounts of oxygen, achieving the purpose of sustainable consumption of Glu under NAD+ circulation and regeneration, and importantly escaping the generation of toxic H2O2. The combination of the N/C-GDH system and 5-FU on CRC cells was investigated to assess their synergistic bioeffects. Notably, our results showed that the N/C-GDH system and 5-FU in combination significantly suppress the proliferation of human colon cancer cells (HCT-116) by reducing the sugar level and induced apoptosis compared with either material or drug used alone. This work expands the nanozymes in blood Glu management as well as the promising cancer cell inhibition and provides the possibility of nonmetallic nanomaterials in the realization of effective treatment of cancer.
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Affiliation(s)
- Jingjie Du
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Jia Liu
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Zhiqiang Zhao
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Jing Dai
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Kai Li
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yuqing Lin
- Department of Chemistry, Capital Normal University, Beijing 100048, China
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Structural optimization and in vivo evaluation of a colorectal stent with anti-migration and anti-tumor properties. Acta Biomater 2022; 154:123-134. [PMID: 36306985 DOI: 10.1016/j.actbio.2022.10.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 10/12/2022] [Accepted: 10/19/2022] [Indexed: 01/24/2023]
Abstract
Clinically, colorectal stents can only palliatively relieve obstruction caused by colorectal cancer (CRC), with a high incidence of stent migration and tumor-related re-obstruction. To overcome these shortcomings, we developed a colorectal stent composed of a structure-optimized nitinol braided stent and a tubular film including an inner layer of poly (ethylene-co-vinyl acetate) (EVA) and a segmental outer layer of EVA with paclitaxel (PTX). The braiding pattern, segment number, and end shape of the stent were optimized based on the mechanical properties, ex vivo and in vivo anti-migration performance, and tissue response of the stent. The optimized nitinol stent had a structure of one middle segment in a hook-pattern and two end segments in a cross-pattern with two studs on each end in a staggered arrangement. Structure-optimized colorectal stents were prepared and evaluated in vivo. PTX released from the stent was mostly distributed in the rabbit rectum in contact with it. The biosafety of the colorectal stent was evaluated using blood tests, biochemical analysis, anatomical observation, and pathological analysis. The anti-tumor effect of the stent was also evaluated by endoscopy, anatomical observation, and pathological and immunohistochemical analyses in rabbits with orthotopic CRC. The results demonstrate that the optimized colorectal stents have effective anti-migration ability and anti-tumor effects with good biosafety. STATEMENT OF SIGNIFICANCE: In order to overcome the most common disadvantages of migration and re-obstruction of colorectal stents clinically, a colorectal stent composed of a structure-optimized nitinol stent and a tubular film including an inner layer of EVA and a segmental outer layer of EVA with PTX was put forward in this study. The optimized nitinol stent had a structure of one middle segment in hook-pattern and two end segments in cross-pattern with two studs on each end in staggered arrangement. The resulting colorectal stent has been proved with good anti-migration ability, anti-tumor effects, and biosafety in vivo, which provides a safe and effective potential treatment modality for patients with colorectal cancer.
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Zhang Z, Xiong Y, Hu J, Guo X, Xu X, Chen J, Wang Y, Chen Y. A Finite Element Investigation on Material and Design Parameters of Ventricular Septal Defect Occluder Devices. J Funct Biomater 2022; 13:jfb13040182. [PMID: 36278651 PMCID: PMC9590015 DOI: 10.3390/jfb13040182] [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: 08/31/2022] [Revised: 09/26/2022] [Accepted: 10/01/2022] [Indexed: 12/01/2022] Open
Abstract
Background and Objective: Ventricular septal defects (VSDs) are the most common form of congenital heart defects. The incidence of VSD accounts for 40% of all congenital heart defects (CHDs). With the development of interventional therapy technology, transcatheter VSD closure was introduced as an alternative to open heart surgery. Clinical trials of VSD occluders have yielded promising results, and with the development of new material technologies, biodegradable materials have been introduced into the application of occluders. At present, the research on the mechanical properties of occluders is focused on experimental and clinical trials, and numerical simulation is still a considerable challenge due to the braided nature of the VSD occluder. Finite element analysis (FEA) has proven to be a valid and efficient method to virtually investigate and optimize the mechanical behavior of minimally invasive devices. The objective of this study is to explore the axial resistive performance through experimental and computational testing, and to present the systematic evaluation of the effect of various material and braid parameters by FEA. Methods: In this study, an experimental test was used to investigate the axial resistive force (ARF) of VSD Nitinol occluders under axial displacement loading (ADL), then the corresponding numerical simulation was developed and compared with the experimental results to verify the effectiveness. Based on the above validation, numerical simulations of VSD occluders with different materials (polydioxanone (PDO) and Nitinol with different austenite moduli) and braid parameters (wire density, wire diameter, and angle between left and right discs) provided a clear presentation of mechanical behaviors that included the maximal axial resistive force (MARF), maximal axial displacement (MAD) and initial axial stiffness (IAS), the stress distribution and the maximum principal strain distribution of the device under ADL. Results: The results showed that: (1) In the experimental testing, the axial resistive force (ARF) of the tested occluder, caused by axial displacement loading (ADL), was recorded and it increased linearly from 0 to 4.91 N before reducing. Subsequent computational testing showed that a similar performance in the ARF was experienced, albeit that the peak value of ARF was smaller. (2) The investigated design parameters of wire density, wire diameter and the angle between the left and right discs demonstrated an effective improvement (7.59%, 9.48%, 1.28%, respectively, for MARF, and 1.28%, 1.80%, 3.07%, respectively, for IAS) for the mechanical performance for Nitinol occluders. (3) The most influencing factor was the material; the performance rose by 30% as the Nitinol austenite modulus (EA) increased by 10,000 MPa. The performance of Nitinol was better than that of PDO for certain wire diameters, and the performance improved more obviously (1.80% for Nitinol and 0.64% for PDO in IAS, 9.48% for Nitinol and 2.00% for PDO in MARF) with the increase in wire diameter. (4) For all of the models, the maximum stresses under ADL were distributed at the edge of the disc on the loaded side of the occluders. Conclusions: The experimental testing presented in the study showed that the mechanical performance of the Nitinol occluder and the MARF prove that it has sufficient ability to resist falling out from its intended placement. This study also represents the first experimentally validated computational model of braided occluders, and provides a perception of the influence of geometrical and material parameters in these systems. The results could further provide meaningful suggestions for the design of biodegradable VSD closure devices and to realize a series of applications for biodegradable materials in VSD.
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Affiliation(s)
- Zhuo Zhang
- School of Mechanical Engineering, Sichuan University, Chengdu 610000, China
| | - Yan Xiong
- School of Mechanical Engineering, Sichuan University, Chengdu 610000, China
- Correspondence: (Y.X.); (Y.W.)
| | - Jinpeng Hu
- Shanghai Shape Memory Alloy Co., Ltd., Shanghai 200000, China
| | - Xuying Guo
- Shanghai Shape Memory Alloy Co., Ltd., Shanghai 200000, China
| | - Xianchun Xu
- Shanghai Shape Memory Alloy Co., Ltd., Shanghai 200000, China
| | - Juan Chen
- Shanghai Shape Memory Alloy Co., Ltd., Shanghai 200000, China
| | - Yunbing Wang
- College of Biomedical Engineering, Sichuan University, Chengdu 610000, China
- Correspondence: (Y.X.); (Y.W.)
| | - Yu Chen
- Department of Applied Mechanics, Sichuan University, Chengdu 610000, China
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Assessment of a Coated Mitomycin-Releasing Biodegradable Ureteral Stent as an Adjuvant Therapy in Upper Urothelial Carcinoma: A Comparative In Vitro Study. Polymers (Basel) 2022; 14:polym14153059. [PMID: 35956574 PMCID: PMC9370495 DOI: 10.3390/polym14153059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 12/16/2022] Open
Abstract
A major limitation of the treatment of low-grade upper tract urothelial carcinoma is the difficulty of intracavitary instillation of adjuvant therapy. Therefore, the aim of this in vitro study was to develop and to assess a new design of biodegradable ureteral stent coated with a silk fibroin matrix for the controlled release of mitomycin C as a chemotherapeutic drug. For this purpose, we assessed the coating of a biodegradable ureteral stent, BraidStent®, with silk fibroin and subsequently loaded the polymeric matrix with two formulations of mitomycin to evaluate its degradation rate, the concentration of mitomycin released, and changes in the pH and the weight of the stent. Our results confirm that the silk fibroin matrix is able to coat the biodegradable stent and release mitomycin for between 6 and 12 h in the urinary environment. There was a significant delay in the degradation rate of silk fibroin and mitomycin-coated stents compared to bare biodegradable stents, from 6–7 weeks to 13–14 weeks. The present study has shown the feasibility of using mitomycin C-loaded silk fibroin for the coating of biodegradable urinary stents. The addition of mitomycin C to the coating of silk fibroin biodegradable stents could be an attractive approach for intracavitary instillation in the upper urinary tract.
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Lin C, Huang Z, Wang Q, Wang W, Wang W, Wang Z, Liu L, Liu Y, Leng J. 3D Printed Bioinspired Stents with Photothermal Effects for Malignant Colorectal Obstruction. Research (Wash D C) 2022; 2022:9825656. [PMID: 35909937 PMCID: PMC9285633 DOI: 10.34133/2022/9825656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/09/2022] [Indexed: 11/06/2022] Open
Abstract
Stent placement is an effective palliation therapy for malignant colorectal obstruction. However, recurrent obstruction is a common severe complication caused by tumor ingrowth into the stent lumen. Conventional covered stents play a part in preventing the tumor from growing inward but at the expense of significantly increasing the risk of stent migration. Therefore, there is an urgent demand to develop stents with sustained antitumor and antimigration abilities. Herein, we propose a facile method for fabricating multifunctional bioinspired colorectal stents using 3D printing technology. Inspired by high-adhesion biological structures (gecko feet, tree frog toe pads, and octopus suckers) in nature, different types of bioinspired colorectal stents are designed to reduce migration. After functionalization with graphene oxide (GO), bioinspired colorectal stents show excellent and controllable photothermal performance, which is validated by effective ablation of colon cancer cells in vitro and tumors in vivo. Besides, the bioinspired colorectal stents demonstrate the feasibility of transanal placement and opening of the obstructed colon. More importantly, the facile manufacturing process of multifunctional bioinspired colorectal stents is appealing for mass production. Hence, the developed multifunctional bioinspired colorectal stents exhibit a highly promising potential in clinical applications.
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Affiliation(s)
- Cheng Lin
- Centre for Composite Materials and Structures, Harbin Institute of Technology, No. 2 Yikuang Street, Harbin 150001, China
| | - Zhipeng Huang
- Tangdu Hospital of the Air Force Military Medical University, No. 1, Xinsi Road, Xi'an 710038, China
| | - Qinglong Wang
- The First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Street, Nangang District, Harbin 150001, China
| | - Wantao Wang
- The First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Street, Nangang District, Harbin 150001, China
| | - Wenbo Wang
- The First Affiliated Hospital of Harbin Medical University, No. 23 Youzheng Street, Nangang District, Harbin 150001, China
| | - Zhen Wang
- The Second Affiliated Hospital of Harbin Medical University, No. 246 Xuefu Street, Nangang District, Harbin 150001, China
| | - Liwu Liu
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology, No. 92 West Dazhi Street, Harbin 150001, China
| | - Yanju Liu
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology, No. 92 West Dazhi Street, Harbin 150001, China
| | - Jinsong Leng
- Centre for Composite Materials and Structures, Harbin Institute of Technology, No. 2 Yikuang Street, Harbin 150001, China
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11
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Feng Y, Chen Y, Chen Y, He X, Khan Y, Hu H, Lan P, Li Y, Wang X, Li G, Kaplan D. Intestinal stents: Structure, functionalization and advanced engineering innovation. BIOMATERIALS ADVANCES 2022; 137:212810. [PMID: 35929235 DOI: 10.1016/j.bioadv.2022.212810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/08/2022] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
Intestinal stents are a palliative treatment option that solves many shortcomings of traditional surgeries for cancer-induced intestinal obstructions. The present review provides an overview of the incidence, clinical manifestations and limitations in the treatment of intestinal cancers. The paper also discusses material property requirements, indications, complications and the future of stent-assisted therapy. The advantages and disadvantages of different materials and processing techniques for intestinal stents are reviewed along with new stent treatment combinations for colorectal cancer. Challenges that require further cooperative studies are also detailed. The future development of intestinal stents will depend on innovation in material designs as well as the utilization of multi-functional strategies and innovative engineering solutions.
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Affiliation(s)
- Yusheng Feng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, Jiangsu, China
| | - Yufeng Chen
- Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Ying Chen
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Xiaowen He
- Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yousef Khan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Hong Hu
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Ping Lan
- Department of Colorectal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, Guangdong, China
| | - Yi Li
- Department of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, Jiangsu, China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, Jiangsu, China.
| | - David Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
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12
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Yan Y, Yao R, Zhao J, Chen K, Duan L, Wang T, Zhang S, Guan J, Zheng Z, Wang X, Liu Z, Li Y, Li G. Implantable nerve guidance conduits: Material combinations, multi-functional strategies and advanced engineering innovations. Bioact Mater 2022; 11:57-76. [PMID: 34938913 PMCID: PMC8665266 DOI: 10.1016/j.bioactmat.2021.09.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/17/2021] [Accepted: 09/26/2021] [Indexed: 01/15/2023] Open
Abstract
Nerve guidance conduits (NGCs) have attracted much attention due to their great necessity and applicability in clinical use for the peripheral nerve repair. Great efforts in recent years have been devoted to the development of high-performance NGCs using various materials and strategies. The present review provides a comprehensive overview of progress in the material innovation, structural design, advanced engineering technologies and multi functionalization of state-of-the-art nerve guidance conduits NGCs. Abundant advanced engineering technologies including extrusion-based system, laser-based system, and novel textile forming techniques in terms of weaving, knitting, braiding, and electrospinning techniques were also analyzed in detail. Findings arising from this review indicate that the structural mimetic NGCs combined with natural and synthetic materials using advanced manufacturing technologies can make full use of their complementary advantages, acquiring better biomechanical properties, chemical stability and biocompatibility. Finally, the existing challenges and future opportunities of NGCs were put forward aiming for further research and applications of NGCs.
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Affiliation(s)
- Yixin Yan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
- Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Ruotong Yao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Jingyuan Zhao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Kaili Chen
- Department of Materials, Imperial College London, SW7 2AZ, UK
| | - Lirong Duan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Tian Wang
- Wilson College of Textiles, North Carolina State University, Raleigh, 27695, USA
| | - Shujun Zhang
- Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Jinping Guan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Zekun Liu
- Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Yi Li
- Department of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
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13
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Lv B, Shen N, Cheng Z, Chen Y, Ding H, Yuan J, Zhao K, Zhang Y. Strategies for Biomaterial-Based Spinal Cord Injury Repair via the TLR4-NF-κB Signaling Pathway. Front Bioeng Biotechnol 2022; 9:813169. [PMID: 35600111 PMCID: PMC9116428 DOI: 10.3389/fbioe.2021.813169] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/13/2021] [Indexed: 12/23/2022] Open
Abstract
The repair and motor functional recovery after spinal cord injury (SCI) has remained a clinical challenge. Injury-induced gliosis and inflammation lead to a physical barrier and an extremely inhibitory microenvironment, which in turn hinders the recovery of SCI. TLR4-NF-κB is a classic implant-related innate immunomodulation signaling pathway and part of numerous biomaterial-based treatment strategies for SCI. Numerous experimental studies have demonstrated that the regulation of TLR4-NF-κB signaling pathway plays an important role in the alleviation of inflammatory responses, the modulation of autophagy, apoptosis and ferroptosis, and the enhancement of anti-oxidative effect post-SCI. An increasing number of novel biomaterials have been fabricated as scaffolds and carriers, loaded with phytochemicals and drugs, to inhibit the progression of SCI through regulation of TLR4-NF-κB. This review summarizes the empirical strategies for the recovery after SCI through individual or composite biomaterials that mediate the TLR4-NF-κB signaling pathway.
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Affiliation(s)
- Bin Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Naiting Shen
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhangrong Cheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Ding
- Department of Orthopedics, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Jishan Yuan
- Department of Orthopedics, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Kangchen Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yukun Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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14
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Ran R, Peng Y, Xiao L, Wang Y, Zhang T, Liu Z, Li Z. Fabrication of antimicrobial poly(lactic‐
co
‐glycolic acid)/silk fibroin/aloe anthraquinone fibrous membranes for potential application of wound healing. J Appl Polym Sci 2022. [DOI: 10.1002/app.52394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ruilong Ran
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Yan Peng
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Lang Xiao
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Yanlai Wang
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Tonghua Zhang
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Zhongwen Liu
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
| | - Zhi Li
- College of Sericulture, Textile and Biomass Sciences Southwest University, Chongqing Engineering Chongqing China
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15
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Wang X, Liu P, Wu Q, Zheng Z, Xie M, Chen G, Yu J, Wang X, Li G, Kaplan D. Sustainable Antibacterial and Anti-Inflammatory Silk Suture with Surface Modification of Combined-Therapy Drugs for Surgical Site Infection. ACS APPLIED MATERIALS & INTERFACES 2022; 14:11177-11191. [PMID: 35192338 DOI: 10.1021/acsami.2c00106] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Silk sutures with antibacterial and anti-inflammatory functions were developed for sustained dual-drug delivery to prevent surgical site infections (SSIs). The silk sutures were prepared with core-shell structures braided from degummed silk filaments and then coated with a silk fibroin (SF) layer loaded with berberine (BB) and artemisinin (ART). Both the rapid release of drugs to prevent initial biofilm formation and the following sustained release to maintain effective concentrations for more than 42 days were demonstrated. In vitro assays using human fibroblasts (Hs 865.Sk) demonstrated cell proliferation on the materials, and hemolysis was 2.4 ± 0.8%, lower than that required by ISO 10993-4 standard. The sutures inhibited platelet adhesion and promoted collagen deposition and blood vessel formation. In vivo assessments using Sprague-Dawley (SD) rats indicated that the coating reduced the expression of pro-inflammatory cytokines interleukin-10 (IL-10) and tumor necrosis factor-α (TNF-α), shortening the inflammatory period and promoting angiogenesis. The results demonstrated that these new sutures exhibited stable structures, favorable biocompatibility, and sustainable antibacterial and anti-inflammatory functions with potential for surgical applications.
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Affiliation(s)
- Xuchen Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Peixin Liu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
- Orthopedic Institute, Soochow University, Suzhou 215006, China
| | - Qinting Wu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Maobin Xie
- Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Guoqiang Chen
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Jia Yu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
- Orthopedic Institute, Soochow University, Suzhou 215006, China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - David Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, United States
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16
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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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17
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Malekzadeh A, Zahedi P, Abdouss M. Synthesis and performance evaluation of 5-fluorouracil-loaded zwitterionic poly(4-vinylpyridine) nanoparticles. NEW J CHEM 2022. [DOI: 10.1039/d2nj00121g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After polymerizing 4-vinylpyridine, the obtained polymer was converted into zwitterionic nanoparticles containing 5-fluorouracil. Their potential for long-term blood circulation was investigated by in vitro and in vivo experiments.
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Affiliation(s)
- Ali Malekzadeh
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering, University of Tehran, P. O. Box: 11155-4563, Tehran, Iran
| | - Payam Zahedi
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering, University of Tehran, P. O. Box: 11155-4563, Tehran, Iran
| | - Majid Abdouss
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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18
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Zhang M, Zhang J, Ran S, Sun W, Zhu Z. Polydopamine-assisted decoration of Se nanoparticles on curcumin-incorporated nanofiber matrices for localized synergistic tumor-wound therapy. Biomater Sci 2021; 10:536-548. [PMID: 34904972 DOI: 10.1039/d1bm01607e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The management of surgical wounds incurred during tumor removal procedures has become a non-negligible issue. Herein, for the first time, an implantable polymer-based nanofiber matrix is developed for postoperative tumor management by promoting wound healing and preventing cancer recurrence. The multifunctional matrix is successfully prepared by assembling chitosan-stabilized Se nanoparticles (SeNPs) at the surface of polydopamine (PDA) modified poly(ε-caprolactone)/curcumin fibres (PCL/CUR), denoted as PCL/CUR/PDA@Se. In this system, PDA as functionalized layers coated onto the PCL/CUR surface favors the effective immobilization of SeNPs through a covalent bond, as well as acts as a gatekeeper guaranteeing the sustained release of CUR. The CUR/SeNPs present excellent antitumor efficacy, respectively, which supports the nanocomposite matrix to efficiently kill cancer cells in vitro by inducing mitochondrial dysfunction caused by the ROS overproduction, and significantly suppressing the tumor growth in vivo. Additionally, due to the synergistic antioxidant activity of CUR and SeNPs, the nanofibrous matrix distinctly facilitates the adhesion and proliferation of normal fibroblast cells, and simultaneously accelerates wound healing during tumor treatments in tumor-bearing mice. These results suggest that the PCL/CUR/PDA@Se matrix with bifunctional properties is a promising candidate for local tumor-wound therapy. This work offers an innovative strategy to develop new improved post-surgery therapies for cancer patients.
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Affiliation(s)
- Meng Zhang
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079, China.
| | - Jiting Zhang
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079, China.
| | - Siyi Ran
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079, China.
| | - Wei Sun
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Zhihong Zhu
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079, China.
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Lin C, Liu L, Liu Y, Leng J. Recent developments in next-generation occlusion devices. Acta Biomater 2021; 128:100-119. [PMID: 33964482 DOI: 10.1016/j.actbio.2021.04.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 04/01/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022]
Abstract
Transcatheter closure has been widely accepted as a highly effective way to treat abnormal blood flows and/or embolization of thrombus in the heart. It allows the closure of four types of congenital heart defects (CHDs) and stroke-associated left atrial appendage (LAA). The four types of CHDs include atrial septal defect (ASD), patent foramen ovale (PFO), patent ductus arteriosus (PDA), and ventricular septal defect (VSD). Advancements in the materials and configurations of occlusion devices have spurred the transition from open-heart surgery with high complexity and morbidity, or lifelong medication with a high risk of bleeding, to minimally invasive deployment. A variety of occlusion devices have been developed over the past few decades, particularly novel ones represented by biodegradable and 3D-printed occlusion devices, which are considered as next-generation alternatives to conventional Nitinol-based occlusion devices due to biodegradability, customization, and improved biocompatibility. The aim here is to comprehensively review the next-generation occlusion devices in terms of materials, configurations, manufacturing methods, deployment strategies, and (if available) experimental results or clinical data. The current challenges and the direction of future work are also proposed. STATEMENT OF SIGNIFICANCE: Implantation of occlusion devices has become a widely accepted and highly effective treatment for occluding abnormal blood/thrombus flow within the heart. Due to the serious complications such as erosion and displacement of conventional Nitinol-based occluders, next-generation occluders with reduced risk of complications and improved biocompatibility has emerged. Here, we comprehensively review the next-generation occluders developed for atrial septal defect (ASD), patent foramen ovale (PFO), patent ductus arteriosus (PDA), ventricular septal defect (VSD), and left atrial appendage (LAA), with special emphasis on biodegradable occluders. Besides, intelligent materials (e.g., automatically deployable shape memory polymers) and rapid customized manufacturing methods (3D/4D printing) for the fabrication of occluders are also introduced. Lastly, the directions of future work are highlighted.
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Affiliation(s)
- Cheng Lin
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), P.O. Box 301, No. 92 West Dazhi Street, Harbin 150001, People's Republic of China
| | - Liwu Liu
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), P.O. Box 301, No. 92 West Dazhi Street, Harbin 150001, People's Republic of China.
| | - Yanju Liu
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), P.O. Box 301, No. 92 West Dazhi Street, Harbin 150001, People's Republic of China
| | - Jinsong Leng
- Center for Composite Materials and Structures, Harbin Institute of Technology (HIT), P.O. Box 3011, No. 2 Yikuang Street, Harbin 150080, People's Republic of China.
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20
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Nanomagnetic Actuation of Hybrid Stents for Hyperthermia Treatment of Hollow Organ Tumors. NANOMATERIALS 2021; 11:nano11030618. [PMID: 33801426 PMCID: PMC7999083 DOI: 10.3390/nano11030618] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023]
Abstract
This paper describes a magnetic nanotechnology that locally enables hyperthermia treatment of hollow organ tumors by using polymer hybrid stents with incorporated magnetic nanoparticles (MNP). The hybrid stents are implanted and activated in an alternating magnetic field to generate therapeutically effective heat, thereby destroying the tumor. Here, we demonstrate the feasibility of nanomagnetic actuation of three prototype hybrid stents for hyperthermia treatment of hollow organ tumors. The results show that the heating efficiency of stent filaments increases with frequency from approximately 60 W/gFe (95 kHz) to approximately 250 W/gFe (270 kHz). The same trend is observed for the variation of magnetic field amplitude; however, heating efficiency saturates at approximately 30 kA/m. MNP immobilization strongly influences heating efficiency showing a relative difference in heating output of up to 60% compared to that of freely dispersed MNP. The stents showed uniformly distributed heat on their surface reaching therapeutically effective temperatures of 43 °C and were tested in an explanted pig bile duct for their biological safety. Nanomagnetic actuation of hybrid stents opens new possibilities in cancer treatment of hollow organ tumors.
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21
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Xie X, Zheng Z, Wang X, Lee Kaplan D. Low-Density Silk Nanofibrous Aerogels: Fabrication and Applications in Air Filtration and Oil/Water Purification. ACS NANO 2021; 15:1048-1058. [PMID: 33439624 DOI: 10.1021/acsnano.0c07896] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A method was developed to fabricate light, water-insoluble silk fibroin nanofibrous aerogels (SNFAs) through solvent welding of lyophilized silk nanofibrous 3D networks at the junction points while converting silk structures from random-coils to β-sheets (water insoluble). Aromatic alcohols, especially phenethyl alcohol (PEA), supported robust solvent welding and the structural conversion of silk. PEA vapor treatment was a better approach than solvent infusion to retain volume, density, and mechanical strength of the SNFAs. The mechanical properties of highly orientated SNFAs were superior to randomly distributed fibers. The SNFAs had a low density (3.5 mg/cm3), high hydrophobicity (140.9°), and a porous surface morphology on the individual nanofibers, resulting in high efficiency and selectivity for absorbing particulate matter and oils. Compared with commonly used inorganic aerogels, the SNFAs developed in this study are biocompatible, easily functionalized, environmentally friendly, and low-cost and therefore have potential for air and water purification, biosensors, drug delivery, and tissue engineering.
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Affiliation(s)
- Xusheng Xie
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province 215123, P.R. China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province 215123, P.R. China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province 215123, P.R. China
| | - David Lee Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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22
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Liu D, Hong Y, Li Y, Hu C, Yip TC, Yu WK, Zhu Y, Fong CC, Wang W, Au SK, Wang S, Yang M. Targeted destruction of cancer stem cells using multifunctional magnetic nanoparticles that enable combined hyperthermia and chemotherapy. Theranostics 2020; 10:1181-1196. [PMID: 31938059 PMCID: PMC6956796 DOI: 10.7150/thno.38989] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 10/14/2019] [Indexed: 12/17/2022] Open
Abstract
Cancer stem cells (CSCs) have been implicated in cancer recurrence and therapy resistance. Therefore, a CSC-targeted therapy that disrupts the maintenance and survival of CSCs may offer an effective approach in killing tumor cells in primary tumors and preventing the metastasis caused by CSCs. Nanoparticles (NPs)-based thermotherapy and/or chemotherapy are promising therapeutic methods for cancer treatment. Methods: A silica-based multifunctional NP system was present, which encapsulated a chemotherapeutic agent and magnetic cores and coated with a specific antibody against the lung CSCs. The efficacy of this novel therapeutic strategy was systematically studied both in vitro and in vivo by simultaneous activating the combined thermotherapy and chemotherapy via CSC-targeted NPs. Results: These NPs were systematically administered and activated for targeted chemotherapy and thermotherapy by using an externally applied alternating magnetic field (AMF). The antibody-modified NPs targeted to lung CSCs with enhanced cellular uptake in vitro and extended accumulation in tumor in vivo. Up to 98% of lung CSCs was killed in vitro with 30-min application of AMF, due to the combined effects of hyperthermia and chemotherapeutic drug treatment. In in vivo models, this combined therapy significantly suppressed tumor growth and metastasis in lung CSC xenograft-bearing mice, with minimal side effects and adverse effects. Conclusion: With good biocompatibility and targeting capability, the nanodrug delivery system may offer a promising clinical platform for the combined thermotherapy and chemotherapy. This work demonstrated the feasibility of developing multifunctional nanomedicine targeting CSCs for effective cancer treatment.
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Affiliation(s)
- Dandan Liu
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
- College of Chemistry and Environmental Science, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, Baoding 071002, China
| | - Yingcai Hong
- Department of Thoracic Surgery, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen 510000, China
| | - Yaping Li
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Chong Hu
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Tak-Chun Yip
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong, China
| | - Wai-Kin Yu
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Yu Zhu
- Department of Oncology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Chi-Chun Fong
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
- Department of Thoracic Surgery, Shenzhen People's Hospital, the Second Clinical Medical College of Jinan University, Shenzhen 510000, China
| | - Weimao Wang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Siu-Kie Au
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong, China
| | - Shubin Wang
- Department of Oncology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Mengsu Yang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
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Zhang M, Zhang J, Chen J, Zeng Y, Zhu Z, Wan Y. Fabrication of Curcumin-Modified TiO 2 Nanoarrays via Cyclodextrin Based Polymer Functional Coatings for Osteosarcoma Therapy. Adv Healthc Mater 2019; 8:e1901031. [PMID: 31664793 DOI: 10.1002/adhm.201901031] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/23/2019] [Indexed: 12/29/2022]
Abstract
The incomplete removal of bone tumors leads to increased local recurrence and poor prognosis. To prevent ostoperative tumor recurrence and simultaneously repair surgery-caused bone defects, there is a need of great significance to develop implantable biomaterials possessing both cancer cell-killing ability and excellent bioactivity. In this work, a functionalized titanium-based implant is successfully fabricated by loading curcumin (CUR) onto cyclodextrin based polymer (pCD) modified titanium dioxide (TiO2 ) nanorod arrays. Herein, a polydopamine (pDA) assisted film is implemented as a first coating layer onto the surface of the TiO2 nanoarrays to guarantee the robust anchorage of the pCD. The pCD coating acts as a reservoir for CUR, allowing for efficient drug loading and sustained release of anticancer drugs. Studies show that the CUR-modified surfaces (TiO2 /pDA/pCD/CUR) can significantly promote apoptosis of osteosarcoma cells in vitro by inducing mitochondrial dysfunction caused by the ROS overproduction, and meanwhile, effectively inhibit the tumor growth in vivo. Moreover, such functionalized implants with surface density of loaded CUR at 22.48 µg cm-2 or lower support the attachment and proliferation of osteoblasts in vitro. These results successfully demonstrate that as-prepared TiO2 /pDA/pCD/CUR constructs have combined anticancer performance and good biocompatibility, which has great promise for the surgical therapy of bone tumors.
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Affiliation(s)
- Meng Zhang
- Institute of Nano‐Science and Nano‐TechnologyCollege of Physical Science and TechnologyCentral China Normal University Wuhan 430079 China
| | - Jiting Zhang
- Institute of Nano‐Science and Nano‐TechnologyCollege of Physical Science and TechnologyCentral China Normal University Wuhan 430079 China
| | - Jisheng Chen
- Institute of Nano‐Science and Nano‐TechnologyCollege of Physical Science and TechnologyCentral China Normal University Wuhan 430079 China
| | - Yan Zeng
- College of ChemistryCentral China Normal University Wuhan 430079 China
| | - Zhihong Zhu
- Institute of Nano‐Science and Nano‐TechnologyCollege of Physical Science and TechnologyCentral China Normal University Wuhan 430079 China
| | - Ying Wan
- College of Life Science and TechnologyHuazhong University of Science and Technology Wuhan 430074 China
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24
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Liao C, Huang X, Gong Y, Lin Q. Discovery of core genes in colorectal cancer by weighted gene co-expression network analysis. Oncol Lett 2019; 18:3137-3149. [PMID: 31402962 PMCID: PMC6676736 DOI: 10.3892/ol.2019.10605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 05/29/2019] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to investigate the interactions among messenger RNAs (mRNAs), microRNAs (miRNAs), and long noncoding RNAs (lncRNAs) in colorectal cancer (CRC), in order to examine its underlying mechanisms. The raw gene expression data was downloaded from the Gene Expression Omnibus (GEO) database. An online tool, GEO2R, which is based on the limma package, was used to identify differentially expressed genes. The co-expression between lncRNAs and mRNAs was identified utilizing the weighted gene co-expression analysis package of R to construct a coding non-coding (CNC) network. The function of the genes in the CNC network was determined by performing Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways enrichment analysis. The interactions among miRNAs, mRNAs and lncRNAs were predicted using Lncbase and mirWalk to construct the competing endogenous RNA (ceRNA) network. The expression of the genes involved in the ceRNA network was further validated in The Cancer Genome Atlas dataset. A total of 3,183 dysregulated mRNAs, 78 dysregulated miRNAs and 2,248 dysregulated lncRNAs were screened in two GEO datasets. Combined with the results of the dysregulated genes, 169 genes were selected to construct the CNC network. 'p53 signaling pathway' and the 'cell cycle' were the most significant enriched pathways in the genes involved in the CNC network. Finally, a validated ceRNA network composed of 2 lncRNAs (MIR22HG and RP11-61I13.3), 5 miRNAs (hsa-miR-765, hsa-miR-198, hsa-miR-125a-3p, hsa-miR-149-3p and hsa-miR-650) and 5 mRNAs (ANK2, BTK, GBP2, PCSK5 and PDK4) was obtained. In conclusion, MIR22HG may regulate PCSK5, BTK and PDK4, and RP11-61I13.3 may regulate the ANK2, GBP2, PCSK5 through sponging miRNAs to act on the progression of CRC, and the potential function of these genes have been revealed. However, the diagnostic and prognostic value of these genes requires further validation.
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Affiliation(s)
- Cun Liao
- Department of Colorectal and Anal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530000, P.R. China
| | - Xue Huang
- Department of Gastroenterology, Eighth Affiliated Hospital of Guangxi Medical University, Guigang, Guangxi Zhuang Autonomous Region 537100, P.R. China
| | - Yizhen Gong
- Department of Colorectal and Anal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530000, P.R. China
| | - Qiuning Lin
- Department of Vascular Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530000, P.R. China
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25
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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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