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Wang X, Li K, Yuan Y, Zhang N, Zou Z, Wang Y, Yan S, Li X, Zhao P, Li Q. Nonlinear Elasticity of Blood Vessels and Vascular Grafts. ACS Biomater Sci Eng 2024; 10:3631-3654. [PMID: 38815169 DOI: 10.1021/acsbiomaterials.4c00326] [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] [Indexed: 06/01/2024]
Abstract
The transplantation of vascular grafts has emerged as a prevailing approach to address vascular disorders. However, the development of small-diameter vascular grafts is still in progress, as they serve in a more complicated mechanical environment than their counterparts with larger diameters. The biocompatibility and functional characteristics of small-diameter vascular grafts have been well developed; however, mismatch in mechanical properties between the vascular grafts and native arteries has not been accomplished, which might facilitate the long-term patency of small-diameter vascular grafts. From a point of view in mechanics, mimicking the nonlinear elastic mechanical behavior exhibited by natural blood vessels might be the state-of-the-art in designing vascular grafts. This review centers on elucidating the nonlinear elastic behavior of natural blood vessels and vascular grafts. The biological functionality and limitations associated with as-reported vascular grafts are meticulously reviewed and the future trajectory for fabricating biomimetic small-diameter grafts is discussed. This review might provide a different insight from the traditional design and fabrication of artificial vascular grafts.
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Affiliation(s)
- Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Kecheng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yuan Yuan
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Ning Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zifan Zou
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yun Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Shujie Yan
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Zhao
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
| | - Qian Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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Inoguchi K, Anazawa T, Fujimoto N, Tada S, Yamane K, Emoto N, Izuwa A, Su H, Fujimoto H, Murakami T, Nagai K, Hatano E. Impact of Prevascularization on Immunological Environment and Early Engraftment in Subcutaneous Islet Transplantation. Transplantation 2024; 108:1115-1126. [PMID: 38192025 DOI: 10.1097/tp.0000000000004909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
BACKGROUND The utilization of islet-like cells derived from pluripotent stem cells may resolve the scarcity of islet transplantation donors. The subcutaneous space is a promising transplantation site because of its capacity for graft observation and removal, thereby ensuring safety. To guarantee subcutaneous islet transplantation, physicians should ensure ample blood supply. Numerous methodologies, including prevascularization, have been investigated to augment blood flow, but the optimal approach remains undetermined. METHODS From C57BL/6 mice, 500 syngeneic islets were transplanted into the prevascularized subcutaneous site of recipient mice by implanting agarose rods with basic fibroblast growth factor at 1 and 2 wk. Before transplantation, the blood glucose levels, cell infiltration, and cytokine levels at the transplant site were evaluated. Furthermore, we examined the impact of the extracellular matrix capsule on graft function and the inflammatory response. RESULTS Compared with the 1-wk group, the 2-wk group exhibited improved glycemic control, indicating that longer prevascularization enhanced transplant success. Flow cytometry analysis detected immune cells, such as neutrophils and macrophages, in the extracellular matrix capsules, whereas cytometric bead array analysis indicated the release of inflammatory and proinflammatory cytokines. Treatment with antitumor necrosis factor and anti-interleukin-6R antibodies in the 1-wk group improved graft survival, similar to the 2-wk group. CONCLUSIONS In early prevascularization before subcutaneous transplantation, neutrophil and macrophage accumulation prevented early engraftment owing to inflammatory cytokine production.
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Affiliation(s)
- Kenta Inoguchi
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takayuki Anazawa
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nanae Fujimoto
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Institute for Life and Medical Sciences, Department of Regeneration Science and Engineering, Kyoto University, Kyoto, Japan
| | - Seiichiro Tada
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kei Yamane
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Norio Emoto
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Aya Izuwa
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hang Su
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroyuki Fujimoto
- Radioisotope Research Center, Agency for Health, Safety and Environment, Kyoto University, Japan
| | - Takaaki Murakami
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kazuyuki Nagai
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Etsuro Hatano
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Woitschach F, Kloss M, Kischkel S, Macháček T, Reinholdt C, Senz V, Schlodder K, Löbermann M, Grabow N, Reisinger EC, Sombetzki M. Utilization of a highly adaptable murine air pouch model for minimally invasive testing of the inflammatory potential of biomaterials. Front Bioeng Biotechnol 2024; 12:1367366. [PMID: 38737540 PMCID: PMC11082294 DOI: 10.3389/fbioe.2024.1367366] [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: 01/08/2024] [Accepted: 04/08/2024] [Indexed: 05/14/2024] Open
Abstract
Introduction: The biocompatibility of an implanted material strongly determines the subsequent host immune response. After insertion into the body, each medical device causes tissue reactions. How intense and long-lasting these are is defined by the material properties. The so-called foreign body reaction is a reaction leading to the inflammation and wound healing process after implantation. The constantly expanding field of implant technology and the growing areas of application make optimization and adaptation of the materials used inevitable. Methods: In this study, modified liquid silicone rubber (LSR) and two of the most commonly used thermoplastic polyurethanes (TPU) were compared in terms of induced inflammatory response in the body. We evaluated the production of inflammatory cytokines, infiltration of inflammatory cells and encapsulation of foreign bodies in a subcutaneous air-pouch model in mice. In this model, the material is applied in a minimally invasive procedure via a cannula and in one piece, which allows material testing without destroying or crushing the material and thus studying an intact implant surface. The study design includes short-term (6 h) and long-term (10 days) analysis of the host response to the implanted materials. Air-pouch-infiltrating cells were determined by flow cytometry after 6 h and 10 days. Inflammation, fibrosis and angiogenesis markers were analyzed in the capsular tissue by qPCR after 10 days. Results: The foreign body reaction was investigated by macroscopic evaluation and scanning electron microscopy (SEM). Increased leukocyte infiltration was observed in the air-pouch after 6 h, but it markedly diminished after 10 days. After 10 days, capsule formations were observed around the materials without visible inflammatory cells. Discussion: For biocompatibility testing materials are often implanted in muscle tissue. These test methods are not sufficiently conclusive, especially for materials that are intended to come into contact with blood. Our study primarily shows that the presented model is a highly adaptable and minimally invasive test system to test the inflammatory potential of and foreign body reaction to candidate materials and offers more precise analysis options by means of flow cytometry.
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Affiliation(s)
- Franziska Woitschach
- Division of Tropical Medicine and Infectious Diseases, Center of Internal Medicine II, University Medical Center, Rostock, Germany
| | - Marlen Kloss
- Division of Tropical Medicine and Infectious Diseases, Center of Internal Medicine II, University Medical Center, Rostock, Germany
| | - Sabine Kischkel
- Institute for Biomedical Engineering, University Medical Center Rostock, Rostock-Warnemünde, Germany
| | - Tomáš Macháček
- Department of Parasitology, Faculty of Science, Charles University, Prague, Czechia
| | - Cindy Reinholdt
- Division of Tropical Medicine and Infectious Diseases, Center of Internal Medicine II, University Medical Center, Rostock, Germany
| | - Volkmar Senz
- Institute for Biomedical Engineering, University Medical Center Rostock, Rostock-Warnemünde, Germany
| | | | - Micha Löbermann
- Division of Tropical Medicine and Infectious Diseases, Center of Internal Medicine II, University Medical Center, Rostock, Germany
| | - Niels Grabow
- Institute for Biomedical Engineering, University Medical Center Rostock, Rostock-Warnemünde, Germany
| | - Emil C. Reisinger
- Division of Tropical Medicine and Infectious Diseases, Center of Internal Medicine II, University Medical Center, Rostock, Germany
| | - Martina Sombetzki
- Division of Tropical Medicine and Infectious Diseases, Center of Internal Medicine II, University Medical Center, Rostock, Germany
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Cheng Q, Zhang L, Zhang J, Zhou X, Wu B, Wang D, Wei T, Shafiq M, Li S, Zhi D, Guan Y, Wang K, Kong D. Decellularized Scaffolds with Double-Layer Aligned Microchannels Induce the Oriented Growth of Bladder Smooth Muscle Cells: Toward Urethral and Ureteral Reconstruction. Adv Healthc Mater 2023; 12:e2300544. [PMID: 37638600 DOI: 10.1002/adhm.202300544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/27/2023] [Indexed: 08/29/2023]
Abstract
There is a great clinical need for regenerating urinary tissue. Native urethras and ureters have bidirectional aligned smooth muscle cells (SMCs) layers, which plays a pivotal role in micturition and transporting urine and inhibiting reflux. Thus far, urinary scaffolds have not been designed to induce the native-mimicking aligned arrangement of SMCs. In this study, a tubular decellularized extracellular matrix (dECM) with an intact internal layer and bidirectional aligned microchannels in the tubular wall, which is realized by the subcutaneous implantation of a template, followed by the removal of the template, and decellularization, is engineered. The dense and intact internal layer effectively increases the leakage pressure of the tubular dECM scaffolds. Rat-derived dECM scaffolds with three different sizes of microchannels are fabricated by tailoring the fiber diameter of the templates. The rat-derived dECM scaffolds exhibiting microchannels of ≈65 µm show suitable mechanical properties, good ability to induce the bidirectional alignment and growth of human bladder SMCs, and elevated higher functional protein expression in vitro. These data indicate that rat-derived tubular dECM scaffolds manifesting double-layer aligned microchannels may be promising candidates to induce the native-mimicking regeneration of SMCs in urethra and ureter reconstruction.
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Affiliation(s)
- Quhan Cheng
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Linli Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Jingai Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xin Zhou
- Department of Medical Imaging, Shanxi Medical University, Taiyuan, 030001, China
| | - Boyu Wu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Dezheng Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Tingting Wei
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Muhammad Shafiq
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Shengbin Li
- Department of Urology, Tianjin Children's Hospital/Tianjin University Children's Hospital, Tianjin, 300134, China
| | - Dengke Zhi
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yong Guan
- Department of Urology, Tianjin Children's Hospital/Tianjin University Children's Hospital, Tianjin, 300134, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
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Cai J, Wang W, Cai P, Cao B. Immune response to foreign materials in spinal fusion surgery. Heliyon 2023; 9:e19950. [PMID: 37810067 PMCID: PMC10559558 DOI: 10.1016/j.heliyon.2023.e19950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/22/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Spinal fusion surgery is a common procedure used to stabilize the spine and treat back pain. The procedure involves the use of foreign materials such as screws, rods, or cages, which can trigger a foreign body reaction, an immune response that involves the activation of immune cells such as macrophages and lymphocytes. The foreign body reaction can impact the success of spinal fusion, as it can interfere with bone growth and fusion. This review article provides an overview of the cellular and molecular events in the foreign body reaction, the impact of the immune response on spinal fusion, and strategies to minimize its impact. By carefully considering the use of foreign materials and optimizing surgical techniques, the impact of the foreign body reaction can be reduced, leading to better outcomes for patients.
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Affiliation(s)
| | | | - Peng Cai
- Department of Orthopedics, Chengdu Seventh People's Hospital (Chengdu Tumor Hospital), 51 Zhimin Rd, Wuhou District, 610041, Chengdu, Sichuan, China
| | - Bo Cao
- Department of Orthopedics, Chengdu Seventh People's Hospital (Chengdu Tumor Hospital), 51 Zhimin Rd, Wuhou District, 610041, Chengdu, Sichuan, China
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6
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Yan H, Cheng Q, Si J, Wang S, Wan Y, Kong X, Wang T, Zheng W, Rafique M, Li X, He J, Midgley AC, Zhu Y, Wang K, Kong D. Functionalization of in vivo tissue-engineered living biotubes enhance patency and endothelization without the requirement of systemic anticoagulant administration. Bioact Mater 2023; 26:292-305. [PMID: 36950151 PMCID: PMC10027480 DOI: 10.1016/j.bioactmat.2023.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/19/2023] [Accepted: 03/05/2023] [Indexed: 03/18/2023] Open
Abstract
Vascular regeneration and patency maintenance, without anticoagulant administration, represent key developmental trends to enhance small-diameter vascular grafts (SDVG) performance. In vivo engineered autologous biotubes have emerged as SDVG candidates with pro-regenerative properties. However, mechanical failure coupled with thrombus formation hinder translational prospects of biotubes as SDVGs. Previously fabricated poly(ε-caprolactone) skeleton-reinforced biotubes (PBs) circumvented mechanical issues and achieved vascular regeneration, but orally administered anticoagulants were required. Here, highly efficient and biocompatible functional modifications were introduced to living cells on PB lumens. The 1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine-N-methoxy (DMPE)-PEG-conjugated anti-coagulant bivalirudin (DPB) and DMPE-PEG-conjugated endothelial progenitor cell (EPC)-binding TPS-peptide (DPT) modifications possessed functionality conducive to promoting vascular graft patency. Co-modification of DPB and DPT swiftly attained luminal saturation without influencing cell viability. DPB repellent of non-specific proteins, DPB inhibition of thrombus formation, and DPB protection against functional masking of DPT's EPC-capture by blood components, which promoted patency and rapid endothelialization in rat and canine artery implantation models without anticoagulant administration. This strategy offers a safe, facile, and fast technical approach to convey additional functionalization to living cells within tissue-engineered constructs.
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Affiliation(s)
- Hongyu Yan
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Quhan Cheng
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Jianghua Si
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Songdi Wang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ye Wan
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xin Kong
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ting Wang
- Tianjin Key Laboratory of Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Wenting Zheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Muhammad Rafique
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Xiaofeng Li
- Department of Vascular Surgery, Tianjin First Central Hospital, Nankai University, Tianjin, 300192, China
| | - Ju He
- Department of Vascular Surgery, Tianjin First Central Hospital, Nankai University, Tianjin, 300192, China
| | - Adam C. Midgley
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
- Corresponding author.
| | - Yi Zhu
- Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
- Corresponding author.
| | - Deling Kong
- Key Laboratory of Bioactive Materials for the Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
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7
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Chen J, Zhang D, Wu LP, Zhao M. Current Strategies for Engineered Vascular Grafts and Vascularized Tissue Engineering. Polymers (Basel) 2023; 15:polym15092015. [PMID: 37177162 PMCID: PMC10181238 DOI: 10.3390/polym15092015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Blood vessels not only transport oxygen and nutrients to each organ, but also play an important role in the regulation of tissue regeneration. Impaired or occluded vessels can result in ischemia, tissue necrosis, or even life-threatening events. Bioengineered vascular grafts have become a promising alternative treatment for damaged or occlusive vessels. Large-scale tubular grafts, which can match arteries, arterioles, and venules, as well as meso- and microscale vasculature to alleviate ischemia or prevascularized engineered tissues, have been developed. In this review, materials and techniques for engineering tubular scaffolds and vasculature at all levels are discussed. Examples of vascularized tissue engineering in bone, peripheral nerves, and the heart are also provided. Finally, the current challenges are discussed and the perspectives on future developments in biofunctional engineered vessels are delineated.
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Affiliation(s)
- Jun Chen
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Di Zhang
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ming Zhao
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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Barungi S, Hernández-Camarero P, Moreno-Terribas G, Villalba-Montoro R, Marchal JA, López-Ruiz E, Perán M. Clinical implications of inflammation in atheroma formation and novel therapies in cardiovascular diseases. Front Cell Dev Biol 2023; 11:1148768. [PMID: 37009489 PMCID: PMC10061140 DOI: 10.3389/fcell.2023.1148768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Cardiovascular diseases (CVD) are the leading causes of death and disability in the world. Among all CVD, the most common is coronary artery disease (CAD). CAD results from the complications promoted by atherosclerosis, which is characterized by the accumulation of atherosclerotic plaques that limit and block the blood flow of the arteries involved in heart oxygenation. Atherosclerotic disease is usually treated by stents implantation and angioplasty, but these surgical interventions also favour thrombosis and restenosis which often lead to device failure. Hence, efficient and long-lasting therapeutic options that are easily accessible to patients are in high demand. Advanced technologies including nanotechnology or vascular tissue engineering may provide promising solutions for CVD. Moreover, advances in the understanding of the biological processes underlying atherosclerosis can lead to a significant improvement in the management of CVD and even to the development of novel efficient drugs. To note, over the last years, the observation that inflammation leads to atherosclerosis has gained interest providing a link between atheroma formation and oncogenesis. Here, we have focused on the description of the available therapy for atherosclerosis, including surgical treatment and experimental treatment, the mechanisms of atheroma formation, and possible novel therapeutic candidates such as the use of anti-inflammatory treatments to reduce CVD.
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Affiliation(s)
- Shivan Barungi
- Department of Health Sciences, University of Jaén, Jaén, Spain
| | | | | | | | - Juan Antonio Marchal
- Centre for Biomedical Research (CIBM), Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, Granada, Spain
| | - Elena López-Ruiz
- Department of Health Sciences, University of Jaén, Jaén, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, Granada, Spain
- *Correspondence: Elena López-Ruiz, ; Macarena Perán,
| | - Macarena Perán
- Department of Health Sciences, University of Jaén, Jaén, Spain
- Centre for Biomedical Research (CIBM), Biopathology and Regenerative Medicine Institute (IBIMER), University of Granada, Granada, Spain
- Excellence Research Unit “Modeling Nature” (MNat), University of Granada, Granada, Spain
- *Correspondence: Elena López-Ruiz, ; Macarena Perán,
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9
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Shao R, Li J, Wang L, Li X, Shu C. Progress in the application of patch materials in cardiovascular surgery. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2023; 48:285-293. [PMID: 36999476 PMCID: PMC10930349 DOI: 10.11817/j.issn.1672-7347.2023.220560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Indexed: 04/01/2023]
Abstract
The cardiovascular patch, served as artificial graft materials to replace heart or vascular tissue defect, is still playing a key role in cardiovascular surgeries. The defects of traditional cardiovascular patch materials may determine its unsatisfactory long-term effect or fatal complications after surgery. Recent studies on many new materials (such as tissue engineered materials, three-dimensional printed materials, etc) are being developed. Patch materials have been widely used in clinical procedures of cardiovascular surgeries such as angioplasty, cardiac atrioventricular wall or atrioventricular septum repair, and valve replacement. The clinical demand for better cardiovascular patch materials is still urgent. However, the cardiovascular patch materials need to adapt to normal coagulation mechanism and durability, promote short-term endothelialization after surgery, and inhibit long-term postoperative intimal hyperplasia, its research and development process is relatively complicated. Understanding the characteristics of various cardiovascular patch materials and their application in cardiovascular surgeries is important for the selection of new clinical surgical materials and the development of cardiovascular patch materials.
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Affiliation(s)
- Rubing Shao
- Department of Vascular Surgery, Second Xiangya Hospital, Central South University, Changsha 410011.
- Institute of Vascular Diseases, Central South University, Changsha 410011.
| | - Jiehua Li
- Department of Vascular Surgery, Second Xiangya Hospital, Central South University, Changsha 410011
- Institute of Vascular Diseases, Central South University, Changsha 410011
| | - Lunchang Wang
- Department of Vascular Surgery, Second Xiangya Hospital, Central South University, Changsha 410011
- Institute of Vascular Diseases, Central South University, Changsha 410011
| | - Xin Li
- Department of Vascular Surgery, Second Xiangya Hospital, Central South University, Changsha 410011.
- Institute of Vascular Diseases, Central South University, Changsha 410011.
| | - Chang Shu
- Department of Vascular Surgery, Second Xiangya Hospital, Central South University, Changsha 410011.
- Institute of Vascular Diseases, Central South University, Changsha 410011.
- Vascular Surgery Center, Fuwai Hospital, Chinese Academy of Medical Sciences & National Center for Cardiovascular Diseases, Beijing 100037, China.
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10
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Ratner B. Vascular Grafts: Technology Success/Technology Failure. BME FRONTIERS 2023; 4:0003. [PMID: 37849668 PMCID: PMC10521696 DOI: 10.34133/bmef.0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/15/2022] [Indexed: 10/19/2023] Open
Abstract
Vascular prostheses (grafts) are widely used for hemodialysis blood access, trauma repair, aneurism repair, and cardiovascular reconstruction. However, smaller-diameter (≤4 mm) grafts that would be valuable for many reconstructions have not been achieved to date, although hundreds of papers on small-diameter vascular grafts have been published. This perspective article presents a hypothesis that may open new research avenues for the development of small-diameter vascular grafts. A historical review of the vascular graft literature and specific types of vascular grafts is presented focusing on observations important to the hypothesis to be presented. Considerations in critically reviewing the vascular graft literature are discussed. The hypothesis that perhaps the "biocompatible biomaterials" comprising our vascular grafts-biomaterials that generate dense, nonvascularized collagenous capsules upon implantation-may not be all that biocompatible is presented. Examples of materials that heal with tissue reconstruction and vascularity, in contrast to the fibrotic encapsulation, are offered. Such prohealing materials may lead the way to a new generation of vascular grafts suitable for small-diameter reconstructions.
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Affiliation(s)
- Buddy Ratner
- Center for Dialysis Innovation (CDI), Departments of Bioengineering and Chemical Engineering, University of Washington, Seattle, WA 98195, USA
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11
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Asanuma K, Nakamura T, Iino T, Hagi T, Sudo A. Macrophages and vimentin in tissues adjacent to megaprostheses and mesh in reconstructive surgeries. Commun Integr Biol 2022; 15:168-181. [DOI: 10.1080/19420889.2022.2101193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
Affiliation(s)
- Kunihiro Asanuma
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu City, Japan
| | - Tomoki Nakamura
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu City, Japan
| | - Takahiro Iino
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu City, Japan
| | - Tomohito Hagi
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu City, Japan
| | - Akihiro Sudo
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu City, Japan
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12
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Su Z, Xing Y, Wang F, Xu Z, Gu Y. Biological small-calibre tissue engineered blood vessels developed by electrospinning and in-body tissue architecture. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:67. [PMID: 36178545 PMCID: PMC9525370 DOI: 10.1007/s10856-022-06689-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/27/2022] [Indexed: 06/16/2023]
Abstract
There are no suitable methods to develop the small-calibre tissue-engineered blood vessels (TEBVs) that can be widely used in the clinic. In this study, we developed a new method that combines electrospinning and in-body tissue architecture(iBTA) to develop small-calibre TEBVs. Electrospinning imparted mechanical properties to the TEBVs, and the iBTA imparted biological properties to the TEBVs. The hybrid fibres of PLCL (poly(L-lactic-co-ε-caprolactone) and PU (Polyurethane) were obtained by electrospinning, and the fibre scaffolds were then implanted subcutaneously in the abdominal area of the rabbit (as an in vivo bioreactor). The biotubes were harvested after four weeks. The mechanical properties of the biotubes were most similar to those of the native rabbit aorta. Biotubes and the PLCL/PU vascular scaffolds were implanted into the rabbit carotid artery. The biotube exhibited a better patency rate and certain remodelling ability in the rabbit model, which indicated the potential use of this hybridization method to develop small-calibre TEBVs. Sketch map of developing the biotube. The vascular scaffolds were prepared by electrospinning (A). Silicone tube was used as the core, and the vascular scaffold was used as the shell (B). The vascular scaffold and silicone tube were implanted subcutaneously in the abdominal area of the rabbit (C). The biotube was extruded from the silicone tube after 4 weeks ofembedding (D). The biotube was implanted for the rabbit carotid artery (E).
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Affiliation(s)
- Zhixiang Su
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Yuehao Xing
- Department of Cardiovascular Surgery, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, 100045, Beijing, China
| | - Fei Wang
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Zeqin Xu
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China
| | - Yongquan Gu
- Vascular Surgery Department, Xuanwu Hospital, Capital Medical University, 100053, Beijing, China.
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13
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Abstract
Cardiovascular defects, injuries, and degenerative diseases often require surgical intervention and the use of implantable replacement material and conduits. Traditional vascular grafts made of synthetic polymers, animal and cadaveric tissues, or autologous vasculature have been utilized for almost a century with well-characterized outcomes, leaving areas of unmet need for the patients in terms of durability and long-term patency, susceptibility to infection, immunogenicity associated with the risk of rejection, and inflammation and mechanical failure. Research to address these limitations is exploring avenues as diverse as gene therapy, cell therapy, cell reprogramming, and bioengineering of human tissue and replacement organs. Tissue-engineered vascular conduits, either with viable autologous cells or decellularized, are the forefront of technology in cardiovascular reconstruction and offer many benefits over traditional graft materials, particularly in the potential for the implanted material to be adopted and remodeled into host tissue and thus offer safer, more durable performance. This review discusses the key advances and future directions in the field of surgical vascular repair, replacement, and reconstruction, with a focus on the challenges and expected benefits of bioengineering human tissues and blood vessels.
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Affiliation(s)
- Kaleb M. Naegeli
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | - Mehmet H. Kural
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | - Yuling Li
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | - Juan Wang
- Humacyte, Inc, Durham, NC (K.M.N., M.H.K., Y.L., J.W., E.A.H., L.E.N.)
| | | | - Laura E. Niklason
- Department of Anesthesiology and Biomedical Engineering, Yale University, New Haven, CT (L.E.N.)
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14
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Nakayama Y, Iwai R, Terazawa T, Tajikawa T, Umeno T, Kawashima T, Nakashima Y, Shiraishi Y, Yamada A, Higashita R, Miyazaki M, Oie T, Kadota S, Yabuuchi N, Abe F, Funayama-Iwai M, Yambe T, Miyamoto S. Pre-implantation evaluation of a small-diameter, long vascular graft (Biotube®) for below-knee bypass surgery in goats. J Biomed Mater Res B Appl Biomater 2022; 110:2387-2398. [PMID: 35561095 DOI: 10.1002/jbm.b.35084] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 11/06/2022]
Abstract
There are no small-diameter, long artificial vascular grafts for below-knee bypass surgery in chronic limb-threatening ischemia. We have developed tissue-engineered vascular grafts called "Biotubes®" using a completely autologous approach called in-body tissue architecture (iBTA). This study aimed at pre-implantation evaluation of Biotube and its in vivo preparation device, Biotube Maker, for use in below-knee bypass surgery. Forty nine makers were subcutaneously embedded into 17 goats for predetermined periods (1, 2, or 3 months). All makers produced Biotubes as designed without inflammation over all periods, with the exception of a few cases with minor defects (success rate: 94%). Small hole formation occurred in only a few cases. All Biotubes obtained had an inner diameter of 4 mm and a length of 51 to 52 cm with a wall thickness of 594 ± 97 μm. All Biotubes did not kink when completely bent under an internal pressure of 100 mmHg and did not leak without any deformation under a water pressure of 200 mmHg. Their burst strength was 2409 ± 473 mmHg, and suture retention strength was 1.75 ± 0.27 N, regardless of the embedding period, whereas tensile strength increased from 7.5 ± 1.3 N at 1 month to 9.7 ± 2.0 N at 3 months with the embedding period. The amount of water leakage from the needle holes prepared in the Biotube wall was approximately 1/7th of that in expanded polytetrafluoroethylene vascular grafts. The Biotubes could be easily connected to each other without cutting or anastomosis leaks. They could be stored for at least 1 year at room temperature. This study confirmed that even Biotubes formed 1 month after embedding of Biotube Makers had properties comparable to arteries.
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Affiliation(s)
- Yasuhide Nakayama
- Osaka Laboratory, Biotube Co., Ltd, Osaka, Japan.,Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Ryosuke Iwai
- Institute of Frontier Science and Technology, Okayama University of Science, Okayama, Japan
| | - Takeshi Terazawa
- Advanced Medical Engineering Research Center, Asahikawa Medical University, Hokkaido, Japan
| | - Tsutomu Tajikawa
- Department of Mechanical Engineering, Faculty of Engineering Science, Kansai University, Osaka, Japan
| | - Tadashi Umeno
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Takayuki Kawashima
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Yumiko Nakashima
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
| | - Yasuyuki Shiraishi
- Pre-Clinical Research Center, Institute of Development, Aging and Cancer, Tohoku University, Miyagi, Japan
| | - Akihiro Yamada
- Pre-Clinical Research Center, Institute of Development, Aging and Cancer, Tohoku University, Miyagi, Japan
| | - Ryuji Higashita
- Osaka Laboratory, Biotube Co., Ltd, Osaka, Japan.,Department of Cardiovascular Surgery, Yokohama General Hospital, Kanagawa, Japan
| | - Manami Miyazaki
- Department of Cardiovascular Surgery, Yokohama General Hospital, Kanagawa, Japan
| | - Tomonori Oie
- Osaka Laboratory, Biotube Co., Ltd, Osaka, Japan
| | - Satoki Kadota
- Department of Development Promotion, Clinical Research, Innovation and Education Center (CRIETO), Tohoku University Hospital, Miyagi, Japan
| | - Nozomi Yabuuchi
- Department of Development Promotion, Clinical Research, Innovation and Education Center (CRIETO), Tohoku University Hospital, Miyagi, Japan
| | - Fumie Abe
- Department of Development Promotion, Clinical Research, Innovation and Education Center (CRIETO), Tohoku University Hospital, Miyagi, Japan
| | - Marina Funayama-Iwai
- Institute of Frontier Science and Technology, Okayama University of Science, Okayama, Japan
| | - Tomoyuki Yambe
- Pre-Clinical Research Center, Institute of Development, Aging and Cancer, Tohoku University, Miyagi, Japan
| | - Shinji Miyamoto
- Department of Cardiovascular Surgery, Oita University Hospital, Oita, Japan
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15
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Zhi D, Cheng Q, Midgley AC, Zhang Q, Wei T, Li Y, Wang T, Ma T, Rafique M, Xia S, Cao Y, Li Y, Li J, Che Y, Zhu M, Wang K, Kong D. Mechanically reinforced biotubes for arterial replacement and arteriovenous grafting inspired by architectural engineering. SCIENCE ADVANCES 2022; 8:eabl3888. [PMID: 35294246 PMCID: PMC8926343 DOI: 10.1126/sciadv.abl3888] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
There is a lack in clinically-suitable vascular grafts. Biotubes, prepared using in vivo tissue engineering, show potential for vascular regeneration. However, their mechanical strength is typically poor. Inspired by architectural design of steel fiber reinforcement of concrete for tunnel construction, poly(ε-caprolactone) (PCL) fiber skeletons (PSs) were fabricated by melt-spinning and heat treatment. The PSs were subcutaneously embedded to induce the assembly of host cells and extracellular matrix to obtain PS-reinforced biotubes (PBs). Heat-treated medium-fiber-angle PB (hMPB) demonstrated superior performance when evaluated by in vitro mechanical testing and following implantation in rat abdominal artery replacement models. hMPBs were further evaluated in canine peripheral arterial replacement and sheep arteriovenous graft models. Overall, hMPB demonstrated appropriate mechanics, puncture resistance, rapid hemostasis, vascular regeneration, and long-term patency, without incidence of luminal expansion or intimal hyperplasia. These optimized hMPB properties show promise as an alternatives to autologous vessels in clinical applications.
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Affiliation(s)
- Dengke Zhi
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Quhan Cheng
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Adam C. Midgley
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Qiuying Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Tingting Wei
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Yi Li
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Ting Wang
- Urban Transport Emission Control Research Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Tengzhi Ma
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Muhammad Rafique
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Shuang Xia
- Department of Radiology, Tianjin Key Disciplines of Radiology, Tianjin First Central Hospital, Nankai University, Tianjin 300192, China
| | - Yuejuan Cao
- Department of Vascular Surgery, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Yangchun Li
- Department of Vascular Surgery, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Jing Li
- Department of Ultrasound, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Yongzhe Che
- Department of Pathology and Anatomy, School of Medicine, Nankai University, Tianjin 300071, China
| | - Meifeng Zhu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Corresponding author. (D.K.); (K.W.); (M.Z.)
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Corresponding author. (D.K.); (K.W.); (M.Z.)
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Institute of Transplant Medicine, Tianjin First Central Hospital, Nankai University, Tianjin 300192, China
- Corresponding author. (D.K.); (K.W.); (M.Z.)
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16
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Failure Analysis of TEVG’s II: Late Failure and Entering the Regeneration Pathway. Cells 2022; 11:cells11060939. [PMID: 35326390 PMCID: PMC8946846 DOI: 10.3390/cells11060939] [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: 12/22/2021] [Revised: 02/03/2022] [Accepted: 03/01/2022] [Indexed: 12/21/2022] Open
Abstract
Tissue-engineered vascular grafts (TEVGs) are a promising alternative to treat vascular disease under complex hemodynamic conditions. However, despite efforts from the tissue engineering and regenerative medicine fields, the interactions between the material and the biological and hemodynamic environment are still to be understood, and optimization of the rational design of vascular grafts is an open challenge. This is of special importance as TEVGs not only have to overcome the surgical requirements upon implantation, they also need to withhold the inflammatory response and sustain remodeling of the tissue. This work aims to analyze and evaluate the bio-molecular interactions and hemodynamic phenomena between blood components, cells and materials that have been reported to be related to the failure of the TEVGs during the regeneration process once the initial stages of preimplantation have been resolved, in order to tailor and refine the needed criteria for the optimal design of TEVGs.
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17
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Cho Y, Park S, Lee J, Yu KJ. Emerging Materials and Technologies with Applications in Flexible Neural Implants: A Comprehensive Review of Current Issues with Neural Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005786. [PMID: 34050691 DOI: 10.1002/adma.202005786] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/29/2020] [Indexed: 05/27/2023]
Abstract
Neuroscience is an essential field of investigation that reveals the identity of human beings, with a comprehensive understanding of advanced mental activities, through the study of neurobiological structures and functions. Fully understanding the neurotransmission system that allows for connectivity among neuronal circuits has paved the way for the development of treatments for neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, and depression. The field of flexible implants has attracted increasing interest mainly to overcome the mechanical mismatch between rigid electrode materials and soft neural tissues, enabling precise measurements of neural signals from conformal contact. Here, the current issues of flexible neural implants (chronic device failure, non-bioresorbable electronics, low-density electrode arrays, among others are summarized) by presenting material candidates and designs to address each challenge. Furthermore, the latest investigations associated with the aforementioned issues are also introduced, including suggestions for ideal neural implants. In terms of the future direction of these advances, designing flexible devices would provide new opportunities for the study of brain-machine interfaces or brain-computer interfaces as part of locomotion through brain signals, and for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Younguk Cho
- School of Electrical Engineering, Yonsei University, Seoul, 03722, Korea
| | - Sanghoon Park
- School of Electrical Engineering, Yonsei University, Seoul, 03722, Korea
| | - Juyoung Lee
- School of Electrical Engineering, Yonsei University, Seoul, 03722, Korea
| | - Ki Jun Yu
- School of Electrical Engineering, YU-KIST Institute, Yonsei University, Seoul, 03722, Korea
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18
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Bai H, Wei S, Sun P, Zhang L, Liu Y, Qiao Z, Wang W, Xie B, Zhang C, Li Z. Biomimetic Elastin Fiber Patch in Rat Aorta Angioplasty. ACS OMEGA 2021; 6:26715-26721. [PMID: 34661025 PMCID: PMC8515827 DOI: 10.1021/acsomega.1c04170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/14/2021] [Indexed: 05/07/2023]
Abstract
Introduction: Vascular grafts significantly contribute to advances in vascular surgery, but none of the currently available prosthetic grafts have elastin fibers similar to native arteries. We hypothesized that a novel elastin patch could be produced after a rat decellularized thoracic aorta elastin fiber scaffold is implanted subcutaneously in rats; we tested this novel elastin patch in a rat aortic arterioplasty model. Methods: Sprague-Dawley rats (200 g) were used. Rat thoracic aortae were decellularized and sectioned at a thickness of 30 μm. A single elastin fiber scaffold was fabricated as a net (5 × 5 mm2), and then a three-layer scaffold was constructed to make a new patch. The hyaluronic acid-sodium alginate (HA/SA) hydrogel was fabricated by reacting sodium SA, HA, and CaCO3, and then the hydrogel was added to the patch to secure the elastin fibers. The patches were implanted subcutaneously in rats and harvested at day 14. The elastin patches were then implanted into the same rat's aorta and harvested at day 14; a decellularized rat thoracic aorta (TA) patch was used as a control. Sections of the retrieved patches were stained by immunohistochemistry and immunofluorescence. Results: The elastin fibers could be secured by the hydrogel. After 14 days, the subcutaneously implanted elastin patch was incorporated into the rat tissue, and H&E staining showed that new tissue had formed around the elastin patch with almost no hydrogel left. After implantation into the rat aorta and then retrieval on day 14, H&E staining showed that there was neointima and adventitia formation in both the TA and elastin patch groups. Both patches showed a similar histological structure after implantation, and immunofluorescence showed that there were CD34- and nestin-positive cells in the neointima. In both groups, the endothelial cells expressed the arterial identity markers Ephrin-B2 and dll-4; almost one-third of the cells in the neointima were PCNA-positive with rare cleaved caspase-3-positive cells. Conclusion: We demonstrated a novel approach to making elastin fiber scaffold hydrogel patches (elastin patches) and tested them in a rat aorta arterioplasty model. This patch showed a similar healing process as the decellularized TA patch; it also showed potential applications in large animals and may be a substitute for prosthetic grafts in vascular surgery.
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Affiliation(s)
- Hualong Bai
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
- Key
Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Zhengzhou, Henan 450001, China
- or . Tel: +86 18838151596
| | - Shunbo Wei
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Peng Sun
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Liwei Zhang
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Yuanfeng Liu
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Zhentao Qiao
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Wang Wang
- Key
Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Zhengzhou, Henan 450001, China
- Department
of Physiology, Medical School of Zhengzhou
University, Zhengzhou, Henan 450001, China
| | - Boao Xie
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Cong Zhang
- Department
of Vascular and Endovascular Surgery, First
Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Zhuo Li
- Key
Vascular Physiology and Applied Research Laboratory of Zhengzhou City, Zhengzhou, Henan 450001, China
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19
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Safdari M, Bibak B, Soltani H, Hashemi J. Recent advancements in decellularized matrix technology for bone tissue engineering. Differentiation 2021; 121:25-34. [PMID: 34454348 DOI: 10.1016/j.diff.2021.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022]
Abstract
The native extracellular matrix (ECM) provides a matrix to hold tissue/organ, defines the cellular fate and function, and retains growth factors. Such a matrix is considered as a most biomimetic scaffold for tissue engineering due to the biochemical and biological components, 3D hierarchical structure, and physicomechanical properties. Several attempts have been performed to decellularize allo- or xeno-graft tissues and used them for bone repairing and regeneration. Decellularized ECM (dECM) technology has been developed to create an in vivo-like microenvironment to promote cell adhesion, growth, and differentiation for tissue repair and regeneration. Decellularization is mediated through physical, chemical, and enzymatic methods. In this review, we describe the recent progress in bone decellularization and their applications as a scaffold, hydrogel, bioink, or particles in bone tissue engineering. Furthermore, we address the native dECM limitations and the potential of non-bone dECM, cell-based ECM, and engineered ECM (eECM) for in vitro osteogenic differentiation and in vivo bone regeneration.
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Affiliation(s)
- Mohammadreza Safdari
- Department of Surgery, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Bahram Bibak
- Department of Physiology and Pharmacology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran; Research Center of Natural Products Safety and Medicinal Plants, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Hoseinali Soltani
- Department of General Surgery, Imam Ali Hospital, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Javad Hashemi
- Research Center of Natural Products Safety and Medicinal Plants, North Khorasan University of Medical Sciences, Bojnurd, Iran; Department of Pathobiology and Laboratory Sciences, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.
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20
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Samaeili A, Rahmani S, Hassanpour K, Meshksar A, Ansari I, Afsar-Aski S, Einollahi B, Pakravan M. A new glaucoma drainage implant with the use of Polytetrafluoroethylene (PTFE). A pilot study. Rom J Ophthalmol 2021; 65:150-156. [PMID: 34179580 PMCID: PMC8207869 DOI: 10.22336/rjo.2021.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Purpose: To investigate the implantation of Polytetrafluoroethylene (PTFE) as a glaucoma drainage device. Methods: This study has been done in two steps. First, the constructed implants have been used in 4 rabbits and the histopathologic response was evaluated. In the second step, the implants were used in the 6 eyes of 6 patients with end-stage glaucoma with uncontrolled IOP and poor visual acuity. The tube was made of two-layer of PTFE membrane measuring 8 * 6 mm with a thickness of 1.8 mm and a silicone tube. The rabbits and the human eyes underwent surgical implantation of the tube in the anterior chamber. The histopathologic evaluation was done using H&E staining. Visual acuity, intraocular pressure and the number of glaucoma medications were assessed before and after the surgery. Results: In the histopathologic evaluation, subconjunctival polarizing fibers of a synthetic mesh infiltrated by fibrovascular septa was seen. A granulomatous inflammatory reaction composed of histiocytes, lymphocytes, and multinucleated giant cells were seen around and between the synthetic bundles. The average age of patients was 63 ± 5.5 years. The mean IOP reached from 36.6 ± 5.7 mmHg at baseline to 16.2 ± 8.9 mmHg at the final follow-up. Patients were followed for an average of 6.6 ± 4.5 months. One patient found hypotony refractory to medical and surgical treatment, which led to implant removal. One patient had uncontrolled IOP and finally led to phthisis bulbi following slow CPC. The remaining four eyes did well during the follow-up. Conclusion: The use of PTFE as a new polymer in tube shunt construction was reported. Larger studies, modification of the PTFE membranes like changing the porosity amount, and size of PTFE membranes might result in different conclusions.
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Affiliation(s)
- Azadeh Samaeili
- Department of Ophthalmology, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Saeed Rahmani
- Department of Optometry, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kiana Hassanpour
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Ophthalmology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aidin Meshksar
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Poostchi Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Iman Ansari
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sasha Afsar-Aski
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Einollahi
- Department of Ophthalmology, Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Pakravan
- Department of Ophthalmology, Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Ophthalmic Epidemiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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Fang S, Ellman DG, Andersen DC. Review: Tissue Engineering of Small-Diameter Vascular Grafts and Their In Vivo Evaluation in Large Animals and Humans. Cells 2021; 10:713. [PMID: 33807009 PMCID: PMC8005053 DOI: 10.3390/cells10030713] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 12/15/2022] Open
Abstract
To date, a wide range of materials, from synthetic to natural or a mixture of these, has been explored, modified, and examined as small-diameter tissue-engineered vascular grafts (SD-TEVGs) for tissue regeneration either in vitro or in vivo. However, very limited success has been achieved due to mechanical failure, thrombogenicity or intimal hyperplasia, and improvements of the SD-TEVG design are thus required. Here, in vivo studies investigating novel and relative long (10 times of the inner diameter) SD-TEVGs in large animal models and humans are identified and discussed, with emphasis on graft outcome based on model- and graft-related conditions. Only a few types of synthetic polymer-based SD-TEVGs have been evaluated in large-animal models and reflect limited success. However, some polymers, such as polycaprolactone (PCL), show favorable biocompatibility and potential to be further modified and improved in the form of hybrid grafts. Natural polymer- and cell-secreted extracellular matrix (ECM)-based SD-TEVGs tested in large animals still fail due to a weak strength or thrombogenicity. Similarly, native ECM-based SD-TEVGs and in-vitro-developed hybrid SD-TEVGs that contain xenogeneic molecules or matrix seem related to a harmful graft outcome. In contrast, allogeneic native ECM-based SD-TEVGs, in-vitro-developed hybrid SD-TEVGs with allogeneic banked human cells or isolated autologous stem cells, and in-body tissue architecture (IBTA)-based SD-TEVGs seem to be promising for the future, since they are suitable in dimension, mechanical strength, biocompatibility, and availability.
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Affiliation(s)
- Shu Fang
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 5000 Odense C, Denmark; (D.G.E.); (D.C.A.)
- The Danish Regenerative Center, Odense University Hospital, J. B. Winsløwsvej 4, 5000 Odense C, Denmark
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Ditte Gry Ellman
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 5000 Odense C, Denmark; (D.G.E.); (D.C.A.)
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
| | - Ditte Caroline Andersen
- Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, J. B. Winsløwsvej 25, 5000 Odense C, Denmark; (D.G.E.); (D.C.A.)
- The Danish Regenerative Center, Odense University Hospital, J. B. Winsløwsvej 4, 5000 Odense C, Denmark
- Institute of Clinical Research, University of Southern Denmark, J. B. Winsløwsvej 19, 5000 Odense C, Denmark
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22
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Amato G, Puleio R, Rodolico V, Agrusa A, Calò PG, Di Buono G, Romano G, Goetze T. Enhanced angiogenesis in the 3D dynamic responsive implant for inguinal hernia repair ProFlor. Artif Organs 2021; 45:933-942. [PMID: 33529348 DOI: 10.1111/aor.13926] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 12/19/2022]
Abstract
Biologic response to hernia prostheses represents a continuous source of debate. Conventional hernia meshes, in their typical static, passive configuration have been used for decades to reinforce the herniated abdominal wall. These flat implants, mainly fixated with sutures or tacks, induce poor quality fibrotic ingrowth that shrinks the mesh. In groin hernia repair, flat meshes are applied in the delicate inguinal surrounding where uncontrolled development of a scar plate can impair movement and may incorporate the sensitive nerves crossing this area. Complications deriving from mesh fixation and nerve entrapment are frequent and unpleasant for patients. To remedy these problems, a multilamellar shaped 3D device with a dynamic responsive behavior has recently been developed to repair inguinal hernia. Its inherent dynamic compliance during inguinal movements has shown to induce enhanced biological response with ingrowth of newly formed connective tissue, muscle fibers, and nerves. The function of these highly specialized tissue structures is supported by the contextual development of newly formed arteries and veins. The scope of the study was to assess quantity and quality of vessels, which had ingrown in the 3D hernia device in the short-term, medium-term, and long-term post-implantation, in biopsy specimens gathered from inguinal hernia patients operated with the 3D device. Starting from an early stage, widespread angiogenesis was evident within the 3D structure. Arteries and veins increased in quantity showing progressive development until full maturation of all specific vascular components throughout the mid-term, to long-term, post-implantation. High quality biologic ingrowth in hernia prosthetics needs an adequate vascular support. The broad network of mature arteries and veins evidenced herewith seems to confirm the enhanced biological features of the dynamic responsive 3D device whose features resemble a regenerative scaffold, an ideal feature for the treatment of the degenerative source of inguinal hernia disease.
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Affiliation(s)
- Giuseppe Amato
- Department of General Surgery and Emergency, University of Palermo, Palermo, Italy
| | - Roberto Puleio
- Department of Pathologic Anatomy and Histology, IZSS, Palermo, Italy
| | - Vito Rodolico
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Antonino Agrusa
- Department of General Surgery and Emergency, University of Palermo, Palermo, Italy
| | | | - Giuseppe Di Buono
- Department of General Surgery and Emergency, University of Palermo, Palermo, Italy
| | - Giorgio Romano
- Department of General Surgery and Emergency, University of Palermo, Palermo, Italy
| | - Thorsten Goetze
- Institut für Klinisch-Onkologische Forschung Krankenhaus Nordwest, Frankfurt/Main, Germany
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23
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Gonçalves RC, Banfi A, Oliveira MB, Mano JF. Strategies for re-vascularization and promotion of angiogenesis in trauma and disease. Biomaterials 2020; 269:120628. [PMID: 33412374 DOI: 10.1016/j.biomaterials.2020.120628] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 12/18/2022]
Abstract
The maintenance of a healthy vascular system is essential to ensure the proper function of all organs of the human body. While macrovessels have the main role of blood transportation from the heart to all tissues, microvessels, in particular capillaries, are responsible for maintaining tissues' functionality by providing oxygen, nutrients and waste exchanges. Occlusion of blood vessels due to atherosclerotic plaque accumulation remains the leading cause of mortality across the world. Autologous vein and artery grafts bypassing are the current gold standard surgical procedures to substitute primarily obstructed vascular structures. Ischemic scenarios that condition blood supply in downstream tissues may arise from blockage phenomena, as well as from other disease or events leading to trauma. The (i) great demand for new vascular substitutes, arising from both the limited availability of healthy autologous vessels, as well as the shortcomings associated with small-diameter synthetic vascular grafts, and (ii) the challenging induction of the formation of adequate and stable microvasculature are current driving forces for the growing interest in the development of bioinspired strategies to ensure the proper function of vasculature in all its dimensional scales. Here, a critical review of well-established technologies and recent biotechnological advances to substitute or regenerate the vascular system is provided.
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Affiliation(s)
- Raquel C Gonçalves
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Andrea Banfi
- Department of Biomedicine, University of Basel, Basel, 4056, Switzerland; Department of Surgery, University Hospital Basel, Basel, 4056, Switzerland
| | - Mariana B Oliveira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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24
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Mirhaidari GJ, Barker JC, Zbinden JC, Santantonio BM, Chang YC, Best CA, Reinhardt JW, Blum KM, Yi T, Breuer CK. Tissue Engineered Vascular Graft Recipient Interleukin 10 Status Is Critical for Preventing Thrombosis. Adv Healthc Mater 2020; 9:e2001094. [PMID: 33073543 PMCID: PMC7936649 DOI: 10.1002/adhm.202001094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/28/2020] [Indexed: 01/07/2023]
Abstract
Tissue engineered vascular grafts (TEVGs) are a promising technology, but are hindered by occlusion. Seeding with bone-marrow derived mononuclear cells (BM-MNCs) mitigates occlusion, yet the precise mechanism remains unclear. Seeded cells disappear quickly and potentially mediate an anti-inflammatory effect through paracrine signaling. Here, a series of reciprocal genetic TEVG implantations plus recombinant protein treatment is reported to investigate what role interleukin-10, an anti-inflammatory cytokine, plays from both host and seeded cells. TEVGs seeded with BM-MNCs from wild-type and IL-10 KO mice, plus unseeded grafts, are implanted into wild-type and IL-10 KO mice. Wild-type mice with unseeded grafts also receive recombinant IL-10. Serial ultrasound evaluates occlusion and TEVGs are harvested at 14 d for immunohistochemical analysis. TEVGs in IL-10 KO mice have significantly higher occlusion incidence compared to wild-type mice attributed to acute (<3 d) thrombosis. Cell seeding rescues TEVGs in IL-10 KO mice comparable to wild-type patency. IL-10 from the host and seeded cells do not significantly influence graft inflammation and macrophage phenotype, yet IL-10 treatment shows interesting biologic effects including decreasing cell proliferation and increasing M2 macrophage polarization. IL-10 from the host is critical for preventing TEVG thrombosis and seeded BM-MNCs exert a significant anti-thrombotic effect in IL-10 KO mice.
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Affiliation(s)
- Gabriel J.M. Mirhaidari
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Jenny C. Barker
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Jacob C. Zbinden
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Brevan M. Santantonio
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Yu-Chun Chang
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Cameron A. Best
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - James W. Reinhardt
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Kevin M. Blum
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Tai Yi
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
| | - Christopher K. Breuer
- The Abigail Wexner Research Institute at Nationwide Children’s Hospital, 575 Children’s Crossroad, Research III, WB4160 A1, Columbus, OH, 43215, United States of America
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25
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Abstract
Since the advent of the vascular anastomosis by Alexis Carrel in the early 20th century, the repair and replacement of blood vessels have been key to treating acute injuries, as well as chronic atherosclerotic disease. Arteries serve diverse mechanical and biological functions, such as conducting blood to tissues, interacting with the coagulation system, and modulating resistance to blood flow. Early approaches for arterial replacement used artificial materials, which were supplanted by polymer fabrics in recent decades. With recent advances in the engineering of connective tissues, including arteries, we are on the cusp of seeing engineered human arteries become mainstays of surgical therapy for vascular disease. Progress in our understanding of physiology, cell biology, and biomanufacturing over the past several decades has made these advances possible.
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Affiliation(s)
- Laura E Niklason
- Departments of Anesthesiology and Biomedical Engineering, Yale University, New Haven, CT, USA. .,Humacyte Inc., Durham, NC 27713, USA
| | - Jeffrey H Lawson
- Humacyte Inc., Durham, NC 27713, USA. .,Department of Surgery, Duke University, Durham, NC, USA
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26
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Wu YL, D’Amato AR, Yan AM, Wang RQ, Ding X, Wang Y. Three-Dimensional Printing of Poly(glycerol sebacate) Acrylate Scaffolds via Digital Light Processing. ACS APPLIED BIO MATERIALS 2020; 3:7575-7588. [DOI: 10.1021/acsabm.0c00804] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yen-Lin Wu
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Anthony R. D’Amato
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Alice M. Yan
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Richard Q. Wang
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Xiaochu Ding
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States
| | - Yadong Wang
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853-0001, United States
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27
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Chae K, Jang WY, Park K, Lee J, Kim H, Lee K, Lee CK, Lee Y, Lee SH, Seo J. Antibacterial infection and immune-evasive coating for orthopedic implants. SCIENCE ADVANCES 2020; 6:6/44/eabb0025. [PMID: 33115733 PMCID: PMC7608784 DOI: 10.1126/sciadv.abb0025] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 09/08/2020] [Indexed: 05/22/2023]
Abstract
Bacterial infection and infection-induced immune response have been a life-threatening risk for patients having orthopedic implant surgeries. Conventional biomaterials are vulnerable to biocontamination, which causes bacterial invasion in wounded areas, leading to postoperative infection. Therefore, development of anti-infection and immune-evasive coating for orthopedic implants is urgently needed. Here, we developed an advanced surface modification technique for orthopedic implants termed lubricated orthopedic implant surface (LOIS), which was inspired by slippery surface of Nepenthes pitcher plant. LOIS presents a long-lasting, extreme liquid repellency against diverse liquids and biosubstances including cells, proteins, calcium, and bacteria. In addition, we confirmed mechanical durability against scratches and fixation force by simulating inevitable damages during surgical procedure ex vivo. The antibiofouling and anti-infection capability of LOIS were thoroughly investigated using an osteomyelitis femoral fracture model of rabbits. We envision that the LOIS with antibiofouling properties and mechanical durability is a step forward in infection-free orthopedic surgeries.
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Affiliation(s)
- Kyomin Chae
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Woo Young Jang
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea
| | - Kijun Park
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jinhyeok Lee
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea
| | - Hyunchul Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Kyoungbun Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Chang Kyu Lee
- Department of Laboratory Medicine, Korea University Anam Hospital, Seoul 02841, Republic of Korea
| | - Yeontaek Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Soon Hyuck Lee
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul 02841, Republic of Korea.
| | - Jungmok Seo
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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28
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Geelhoed WJ, Lalai RA, Sinnige JH, Jongeleen PJ, Storm C, Rotmans JI. Indirect Burst Pressure Measurements for the Mechanical Assessment of Biological Vessels. Tissue Eng Part C Methods 2020; 25:472-478. [PMID: 31328661 DOI: 10.1089/ten.tec.2019.0133] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
IMPACT STATEMENT Vascular tissue engineering (VTE) is a rapidly expanding field, with numerous approaches being explored both in preclinical and clinical settings. A pivotal factor in the development of VTE techniques is patient safety, notably with respect to the mechanical properties of the vessels. Of the mechanical properties, the bursting strength, representing the ability of a vessel to withstand the forces exerted on it by blood pressure, is the most important. The burst pressure is commonly assessed using one of three methods proposed by the ISO 7198. In this study, we evaluate the three burst pressure assessment methods exactly as they are presently in the field of VTE. We show that the indirect assessment methods, as they are presently used, provide inconsistent and therefore unreliable estimates of the true yield stress of a vessel.
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Affiliation(s)
- Wouter Jan Geelhoed
- 1Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands.,2Einthoven Laboratory of Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Reshma A Lalai
- 1Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands.,2Einthoven Laboratory of Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Joep H Sinnige
- 1Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands.,2Einthoven Laboratory of Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Patrick J Jongeleen
- 1Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands.,2Einthoven Laboratory of Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Cornelis Storm
- 3Department of Applied Physics and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Joris I Rotmans
- 1Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
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29
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Stegmayr B, Willems C, Groth T, Martins A, Neves NM, Mottaghy K, Remuzzi A, Walpoth B. Arteriovenous access in hemodialysis: A multidisciplinary perspective for future solutions. Int J Artif Organs 2020; 44:3-16. [PMID: 32438852 PMCID: PMC7780365 DOI: 10.1177/0391398820922231] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In hemodialysis, vascular access is a key issue. The preferred access is an arteriovenous fistula on the non-dominant lower arm. If the natural vessels are insufficient for such access, the insertion of a synthetic vascular graft between artery and vein is an option to construct an arteriovenous shunt for punctures. In emergency situations and especially in elderly with narrow and atherosclerotic vessels, a cuffed double-lumen catheter is placed in a larger vein for chronic use. The latter option constitutes a greater risk for infections while arteriovenous fistula and arteriovenous shunt can fail due to stenosis, thrombosis, or infections. This review will recapitulate the vast and interdisciplinary scenario that characterizes hemodialysis vascular access creation and function, since adequate access management must be based on knowledge of the state of the art and on future perspectives. We also discuss recent developments to improve arteriovenous fistula creation and patency, the blood compatibility of arteriovenous shunt, needs to avoid infections, and potential development of tissue engineering applications in hemodialysis vascular access. The ultimate goal is to spread more knowledge in a critical area of medicine that is importantly affecting medical costs of renal replacement therapies and patients’ quality of life.
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Affiliation(s)
- Bernd Stegmayr
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Christian Willems
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Halle, Germany
| | - Thomas Groth
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Halle, Germany.,Interdisciplinary Center of Material Research, Martin Luther University of Halle-Wittenberg, Halle, Germany
| | - Albino Martins
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-Parque de Ciência e Tecnologia, Barco, Portugal
| | - Nuno M Neves
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark-Parque de Ciência e Tecnologia, Barco, Portugal
| | - Khosrow Mottaghy
- Department of Physiology, RWTH Aachen University, Aachen, Germany
| | | | - Beat Walpoth
- Department of Cardiovascular Surgery (Emeritus), University of Geneva, Geneva, Switzerland
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30
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Gupta P, Lorentz KL, Haskett DG, Cunnane EM, Ramaswamy AK, Weinbaum JS, Vorp DA, Mandal BB. Bioresorbable silk grafts for small diameter vascular tissue engineering applications: In vitro and in vivo functional analysis. Acta Biomater 2020; 105:146-158. [PMID: 31958596 PMCID: PMC7050402 DOI: 10.1016/j.actbio.2020.01.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 01/14/2020] [Accepted: 01/14/2020] [Indexed: 01/14/2023]
Abstract
The success of tissue-engineered vascular graft (TEVG) predominantly relies on the selection of a suitable biomaterial and graft design. Natural biopolymer silk has shown great promise for various tissue-engineering applications. This study is the first to investigate Indian endemic non-mulberry silk (Antheraea assama-AA) - which inherits naturally superior mechanical and biological traits (e.g., RGD motifs) compared to Bombyx mori-BM silk, for TEVG applications. We designed bi-layered biomimetic small diameter AA-BM silk TEVGs adopting a new fabrication methodology. The inner layer showed ideally sized (~40 µm) pores with interconnectivity to allow cellular infiltration, and an outer dense electrospun layer that confers mechanical resilience. Biodegradation of silk TEVGs into amino acids as resorbable byproducts corroborates their in vivo remodeling ability. Following our previous reports, we surgically implanted human adipose tissue-derived stromal vascular fraction (SVF) seeded silk TEVGs in Lewis rats as abdominal aortic interposition grafts for 8 weeks. Adequate suture retention strength (0.45 ± 0.1 N) without any blood seepage post-implantation substantiate the grafts' viability. AA silk-based TEVGs showed superior animal survival and graft patency compared to BM silk TEVGs. Histological analysis revealed neo-tissue formation, host cell infiltration and graft remodeling in terms of extracellular matrix turnover. Altogether, this study demonstrates promising aspects of AA silk TEVGs for vascular tissue engineering applications. STATEMENT OF SIGNIFICANCE: Clinical 'off the shelf' implementation of tissue-engineered vascular grafts (TEVGs) remains a challenge. Achieving optimal blood vessel regeneration requires the use of bioresorbable materials having suitable degradation rates while producing minimal or no toxic byproducts. Host cell recruitment and preventing acute thrombosis are other pre-requisites for successful graft remodeling. In this study, for the first time we explored the use of naturally derived Indian endemic non-mulberry Antheraea assama silk in combination with Bombyx mori silk for TEVG applications by adopting a new biomimetic approach. Our bi-layered silk TEVGs were optimally porous, mechanically resilient and biodegradable. In vivo implantation in rat aorta showed long-term patency and graft remodeling by host cell infiltration and extracellular matrix deposition corroborating their clinical feasibility.
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Affiliation(s)
- Prerak Gupta
- Department of Biosciences and Bioengineering, Indian Istitute of Technology Guwahati, Guwahati 781039, India; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - Katherine L Lorentz
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - Darren G Haskett
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - Eoghan M Cunnane
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, United States; Tissue Engineering Research Group (TERG), Royal College of Surgeons in Ireland (RCSI), Dublin D02 YN77, Ireland
| | - Aneesh K Ramaswamy
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - Justin S Weinbaum
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, United States
| | - David A Vorp
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, PA 15261, United States; Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15261, United States.
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Istitute of Technology Guwahati, Guwahati 781039, India; Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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31
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Wang D, Xu Y, Li Q, Turng LS. Artificial small-diameter blood vessels: materials, fabrication, surface modification, mechanical properties, and bioactive functionalities. J Mater Chem B 2020; 8:1801-1822. [PMID: 32048689 PMCID: PMC7155776 DOI: 10.1039/c9tb01849b] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cardiovascular diseases, especially ones involving narrowed or blocked blood vessels with diameters smaller than 6 millimeters, are the leading cause of death globally. Vascular grafts have been used in bypass surgery to replace damaged native blood vessels for treating severe cardio- and peripheral vascular diseases. However, autologous replacement grafts are not often available due to prior harvesting or the patient's health. Furthermore, autologous harvesting causes secondary injury to the patient at the harvest site. Therefore, artificial blood vessels have been widely investigated in the last several decades. In this review, the progress and potential outlook of small-diameter blood vessels (SDBVs) engineered in vitro are highlighted and summarized, including material selection and development, fabrication techniques, surface modification, mechanical properties, and bioactive functionalities. Several kinds of natural and synthetic polymers for artificial SDBVs are presented here. Commonly used fabrication techniques, such as extrusion and expansion, electrospinning, thermally induced phase separation (TIPS), braiding, 3D printing, hydrogel tubing, gas foaming, and a combination of these methods, are analyzed and compared. Different surface modification methods, such as physical immobilization, surface adsorption, plasma treatment, and chemical immobilization, are investigated and are compared here as well. Mechanical requirements of SDBVs are also reviewed for long-term service. In vitro biological functions of artificial blood vessels, including oxygen consumption, nitric oxide (NO) production, shear stress response, leukocyte adhesion, and anticoagulation, are also discussed. Finally, we draw conclusions regarding current challenges and attempts to identify future directions for the optimal combination of materials, fabrication methods, surface modifications, and biofunctionalities. We hope that this review can assist with the design, fabrication, and application of SDBVs engineered in vitro and promote future advancements in this emerging research field.
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Affiliation(s)
- Dongfang Wang
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA and School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, P. R. China and National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yiyang Xu
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou 450001, P. R. China and National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin, Madison, WI, USA. and Wisconsin Institute for Discovery, University of Wisconsin, Madison, WI, USA
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Geelhoed WJ, van der Bogt KEA, Rothuizen TC, Damanik FFR, Hamming JF, Mota CD, van Agen MS, de Boer HC, Restrepo MT, Hinz B, Kislaya A, Poelma C, van Zonneveld AJ, Rabelink TJ, Moroni L, Rotmans JI. A novel method for engineering autologous non-thrombogenic in situ tissue-engineered blood vessels for arteriovenous grafting. Biomaterials 2019; 229:119577. [PMID: 31704466 DOI: 10.1016/j.biomaterials.2019.119577] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 10/14/2019] [Accepted: 10/22/2019] [Indexed: 12/15/2022]
Abstract
The durability of prosthetic arteriovenous (AV) grafts for hemodialysis access is low, predominantly due to stenotic lesions in the venous outflow tract and infectious complications. Tissue engineered blood vessels (TEBVs) might offer a tailor-made autologous alternative for prosthetic grafts. We have designed a method in which TEBVs are grown in vivo, by utilizing the foreign body response to subcutaneously implanted polymeric rods in goats, resulting in the formation of an autologous fibrocellular tissue capsule (TC). One month after implantation, the polymeric rod is extracted, whereupon TCs (length 6 cm, diameter 6.8 mm) were grafted as arteriovenous conduit between the carotid artery and jugular vein of the same goats. At time of grafting, the TCs were shown to have sufficient mechanical strength in terms of bursting pressure (2382 ± 129 mmHg), and suture retention strength (SRS: 1.97 ± 0.49 N). The AV grafts were harvested at 1 or 2 months after grafting. In an ex vivo whole blood perfusion system, the lumen of the vascular grafts was shown to be less thrombogenic compared to the initial TCs and ePTFE grafts. At 8 weeks after grafting, the entire graft was covered with an endothelial layer and abundant elastin expression was present throughout the graft. Patency at 1 and 2 months was comparable with ePTFE AV-grafts. In conclusion, we demonstrate the remodeling capacity of cellularized in vivo engineered TEBVs, and their potential as autologous alternative for prosthetic vascular grafts.
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Affiliation(s)
- W J Geelhoed
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory of Vascular and Regenerative Medicine, the Netherlands
| | - K E A van der Bogt
- Department of Surgery, Leiden University Medical Center, the Netherlands
| | - T C Rothuizen
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands
| | - F F R Damanik
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, the Netherlands
| | - J F Hamming
- Department of Surgery, Leiden University Medical Center, the Netherlands
| | - C D Mota
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, the Netherlands
| | - M S van Agen
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory of Vascular and Regenerative Medicine, the Netherlands
| | - H C de Boer
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory of Vascular and Regenerative Medicine, the Netherlands
| | - M Tobón Restrepo
- Division of Diagnostic Imaging, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - B Hinz
- Laboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Canada
| | - A Kislaya
- Laboratory for Aero and Hydrodynamics, Delft University of Technology, Delft, the Netherlands
| | - C Poelma
- Laboratory for Aero and Hydrodynamics, Delft University of Technology, Delft, the Netherlands
| | - A J van Zonneveld
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory of Vascular and Regenerative Medicine, the Netherlands
| | - T J Rabelink
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands
| | - L Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, the Netherlands
| | - J I Rotmans
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands.
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In vivo engineered extracellular matrix scaffolds with instructive niches for oriented tissue regeneration. Nat Commun 2019; 10:4620. [PMID: 31604958 PMCID: PMC6789018 DOI: 10.1038/s41467-019-12545-3] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 09/12/2019] [Indexed: 12/22/2022] Open
Abstract
Implanted scaffolds with inductive niches can facilitate the recruitment and differentiation of host cells, thereby enhancing endogenous tissue regeneration. Extracellular matrix (ECM) scaffolds derived from cultured cells or natural tissues exhibit superior biocompatibility and trigger favourable immune responses. However, the lack of hierarchical porous structure fails to provide cells with guidance cues for directional migration and spatial organization, and consequently limit the morpho-functional integration for oriented tissues. Here, we engineer ECM scaffolds with parallel microchannels (ECM-C) by subcutaneous implantation of sacrificial templates, followed by template removal and decellularization. The advantages of such ECM-C scaffolds are evidenced by close regulation of in vitro cell activities, and enhanced cell infiltration and vascularization upon in vivo implantation. We demonstrate the versatility and flexibility of these scaffolds by regenerating vascularized and innervated neo-muscle, vascularized neo-nerve and pulsatile neo-artery with functional integration. This strategy has potential to yield inducible biomaterials with applications across tissue engineering and regenerative medicine. Extracellular matrix (ECM) is an ideal scaffold for tissue engineering but tends to lack hierarchical structure. Here the authors implant sacrificial templates subcutaneously to build an organised ECM scaffold, and following template removal and decellularisation use these scaffolds to create functionally integrated muscle, nerve and artery in vivo.
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Furukoshi M, Tatsumi E, Nakayama Y. Application of in-body tissue architecture-induced Biotube vascular grafts for vascular access: Proof of concept in a beagle dog model. J Vasc Access 2019; 21:314-321. [PMID: 31530219 DOI: 10.1177/1129729819874318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION The first choice of vascular access for hemodialysis is an autogenous arteriovenous fistula, because prosthetic arteriovenous grafts have a high probability of failure. In this study, Biotubes, in-body tissue architecture-induced autologous collagenous tubes, were evaluated for their potential use as vascular access grafts. Three animal implantation models were developed using beagle dogs, and the in vivo performance of Biotubes was observed after implantation in the acute phase as a pilot study. METHODS Biotubes (internal diameter ca. 4.0 mm, length ca. 5.0 cm, and wall thickness ca. 0.7 mm) were prepared through subcutaneous embedding of specially designed molds in beagle dogs for 8 weeks. The Biotubes were then implanted between the common carotid artery and the jugular vein of beagles via three methods, including side-to-side (in) -end-to-end (out) as type 1 (n = 4), side-to-side (both) as type 2 (n = 4), and side-to-end (in) -end-to-side (out) as type 3 (n = 1 using a composite Biotube). RESULTS Although two cases in type 1 and 2 resulted in Biotube deformation, all cases were patent for 4 weeks and maintained a continuous turbulent flow. At 4 weeks after implantation, percutaneous puncture could be performed repeatedly without aneurysm formation or hemorrhage. CONCLUSION Within a short implantation period, with limited animal numbers, this proof-of-concept study showed that Biotubes may have a high potential for use in vascular access.
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Affiliation(s)
- Maya Furukoshi
- Department of Regenerative Medicine and Tissue Engineering, Research Institute, National Cerebral and Cardiovascular Center, Suita, Japan.,Division of Cell Engineering, Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Japan
| | - Eisuke Tatsumi
- Department of Artificial Organs, Research Institute, National Cerebral and Cardiovascular Center, Suita, Japan
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Li W, Midgley AC, Bai Y, Zhu M, Chang H, Zhu W, Wang L, Wang Y, Wang H, Kong D. Subcutaneously engineered autologous extracellular matrix scaffolds with aligned microchannels for enhanced tendon regeneration: Aligned microchannel scaffolds for tendon repair. Biomaterials 2019; 224:119488. [PMID: 31562997 DOI: 10.1016/j.biomaterials.2019.119488] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 09/03/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022]
Abstract
Improved strategies for the treatment of tendon defects are required to successfully restore mechanical function and strength to the damaged tissue. This remains a scientific and clinical challenge, given the tendon's limited innate regenerative capacity. Here, we present an engineering solution that stimulates the host cell's remodeling abilities. We combined precision-designed templates with subcutaneous implantation to generate decellularized autologous extracellular matrix (aECM) scaffolds that had highly aligned microchannels after removal of templates and cellular components. The aECM scaffolds promoted rapid cell infiltration, favorable macrophage responses, collagen-rich extracellular matrix (ECM) synthesis, and physiological tissue remodeling in rat Achilles tendon defects. At three months post-surgery, the mechanical strength of tenocyte-populated 'neo-tendons' was comparable to pre-injury state tendons. Overall, we demonstrated an in vivo bioengineering strategy for improved restoration of tendon tissue, which also offers wider implications for the regeneration of other highly organized tissues.
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Affiliation(s)
- Wen Li
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China
| | - Adam C Midgley
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China
| | - Yanli Bai
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China
| | - Meifeng Zhu
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China; Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA.
| | - Hong Chang
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China
| | - Wenying Zhu
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China
| | - Lina Wang
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China
| | - Yuhao Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Hongjun Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Deling Kong
- College of Life Science, Key Laboratory of Bioactive Materials (Ministry of Education), State Key Laboratory of Medicinal Chemical Biology, Rongxiang Xu Center for Regenerative Life Science, Nankai University, Tianjin, 300071, China.
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Cohn D, Sloutski A, Elyashiv A, Varma VB, Ramanujan R. In Situ Generated Medical Devices. Adv Healthc Mater 2019; 8:e1801066. [PMID: 30828989 DOI: 10.1002/adhm.201801066] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/25/2018] [Indexed: 12/19/2022]
Abstract
Medical devices play a major role in all areas of modern medicine, largely contributing to the success of clinical procedures and to the health of patients worldwide. They span from simple commodity products such as gauzes and catheters, to highly advanced implants, e.g., heart valves and vascular grafts. In situ generated devices are an important family of devices that are formed at their site of clinical function that have distinct advantages. Among them, since they are formed within the body, they only require minimally invasive procedures, avoiding the pain and risks associated with open surgery. These devices also display enhanced conformability to local tissues and can reach sites that otherwise are inaccessible. This review aims at shedding light on the unique features of in situ generated devices and to underscore leading trends in the field, as they are reflected by key developments recently in the field over the last several years. Since the uniqueness of these devices stems from their in situ generation, the way they are formed is crucial. It is because of this fact that in this review, the medical devices are classified depending on whether their in situ generation entails chemical or physical phenomena.
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Affiliation(s)
- Daniel Cohn
- Casali Center of Applied ChemistryInstitute of ChemistryHebrew University of Jerusalem Jerusalem 91904 Israel
| | - Aaron Sloutski
- Casali Center of Applied ChemistryInstitute of ChemistryHebrew University of Jerusalem Jerusalem 91904 Israel
| | - Ariel Elyashiv
- Casali Center of Applied ChemistryInstitute of ChemistryHebrew University of Jerusalem Jerusalem 91904 Israel
| | - Vijaykumar B. Varma
- School of Materials Science and EngineeringNanyang Technological University 639798 Singapore Singapore
| | - Raju Ramanujan
- School of Materials Science and EngineeringNanyang Technological University 639798 Singapore Singapore
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Bezhaeva T, Geelhoed WJ, Wang D, Yuan H, van der Veer EP, Alem CMAV, Damanik FFR, Qiu X, Zonneveld AJV, Moroni L, Li S, Rotmans JI. Contribution of bone marrow-derived cells to in situ engineered tissue capsules in a rat model of chronic kidney disease. Biomaterials 2018; 194:47-56. [PMID: 30580195 DOI: 10.1016/j.biomaterials.2018.12.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/13/2018] [Accepted: 12/14/2018] [Indexed: 12/12/2022]
Abstract
Tissue engineered blood vessels (TEBVs) hold great promise for clinical use in patients with end stage renal disease (ESRD) requiring vascular access for hemodialysis. A promising way to make TEBVs is to exploit foreign body response (FBR) of polymeric rods used as templates. However, since the FBR predominantly involves bone-marrow (BM) derived cells and ESRD coincides with impaired function of BM, it is important to assess the generation of TEBVs in conditions of renal failure. To this end, we implanted polymer rods in the subcutis of rats after BM-transplantation with GFP-labeled BM cells in a model of chronic kidney disease (CKD). At 3 weeks after implantation, rods were encapsulated by tissue capsule (TC) composed of collagen, myofibroblasts and macrophages. On average, 13% of CD68+ macrophages were GFP+, indicating BM origin. Macrophage-to-myofibroblasts differentiation appeared to play an important role in TC formation as 26% of SMA+/GFP+ myofibroblasts co-expressed the macrophage marker CD68. Three weeks after rod implantation, the cellular response changed towards tissue repair, characterized by 40% increase in CD68+/CD163+ repair associated macrophages and 95% increase in TGFβ and IL10 gene expression as compared to TCs harvested at 1 week. These results show that both BM derived and tissue resident cells, contribute to TC formation, whereas macrophages serve as precursors of myofibroblasts in mature TCs. Finally, the presence of CKD did not significantly alter the process of TC formation, which holds the potential to support our approach for future clinical use in ESRD patients.
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Affiliation(s)
- Taisiya Bezhaeva
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, the Netherlands
| | - Wouter J Geelhoed
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, the Netherlands
| | - Dong Wang
- Department of Bioengineering and Department of Medicine, University of California, Los Angeles, USA; Department of Bioengineering, University of California, Berkeley, USA
| | - Haoyong Yuan
- Department of Bioengineering and Department of Medicine, University of California, Los Angeles, USA
| | - Eric P van der Veer
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, the Netherlands
| | - Carla M A van Alem
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, the Netherlands
| | - Febriyani F R Damanik
- MERLN Institute for Technology Inspired Regenerative Medicine, Complex Tissue Regeneration, Maastricht University, the Netherlands
| | - Xuefeng Qiu
- Department of Bioengineering and Department of Medicine, University of California, Los Angeles, USA; Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anton-Jan van Zonneveld
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, the Netherlands
| | - Lorenzo Moroni
- MERLN Institute for Technology Inspired Regenerative Medicine, Complex Tissue Regeneration, Maastricht University, the Netherlands
| | - Song Li
- Department of Bioengineering and Department of Medicine, University of California, Los Angeles, USA; Department of Bioengineering, University of California, Berkeley, USA; Department of Medicine, University of California, Los Angeles, USA
| | - Joris I Rotmans
- Department of Internal Medicine, Leiden University Medical Center, the Netherlands; Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, the Netherlands.
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Nakayama Y, Furukoshi M, Terazawa T, Iwai R. Development of long in vivo tissue-engineered “Biotube” vascular grafts. Biomaterials 2018; 185:232-239. [DOI: 10.1016/j.biomaterials.2018.09.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 09/01/2018] [Accepted: 09/17/2018] [Indexed: 12/25/2022]
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Abstract
The human body is endowed with an uncanny ability to distinguish self from foreign. The implantation of a foreign object inside a mammalian host activates complex signaling cascades, which lead to biological encapsulation of the implant. This reaction by the host system to a foreign object is known as foreign body response (FBR). Over the last few decades, it has been increasingly important to have a deeper insight into the mechanisms of FBR is needed to develop biomaterials for better integration with living systems. In the light of recent advances in tissue engineering and regenerative medicine, particularly in the field of biosensors and biodegradable tissue engineering scaffolds, the classical concepts related to the FBR have acquired new dimensions. The aim of this review is to provide a holistic view of the FBR, while critically analyzing the challenges, which need to be addressed in the future to overcome this innate response. In particular, this review discusses the relevant experimental methodology to assess the host response. The role of erosion and degradation behavior on FBR with biodegradable polymers is largely explored. Apart from the discussion on temporal progression of FBR, an emphasis has been given to the design of next-generation biomaterials with favorable host response.
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Smits AI, Bouten CV. Tissue engineering meets immunoengineering: Prospective on personalized in situ tissue engineering strategies. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2018. [DOI: 10.1016/j.cobme.2018.02.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Blum KM, Drews JD, Breuer CK. Tissue-Engineered Heart Valves: A Call for Mechanistic Studies. TISSUE ENGINEERING PART B-REVIEWS 2018; 24:240-253. [PMID: 29327671 DOI: 10.1089/ten.teb.2017.0425] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Heart valve disease carries a substantial risk of morbidity and mortality. Outcomes are significantly improved by valve replacement, but currently available mechanical and biological replacement valves are associated with complications of their own. Mechanical valves have a high rate of thromboembolism and require lifelong anticoagulation. Biological prosthetic valves have a much shorter lifespan, and they are prone to tearing and degradation. Both types of valves lack the capacity for growth, making them particularly problematic in pediatric patients. Tissue engineering has the potential to overcome these challenges by creating a neovalve composed of native tissue that is capable of growth and remodeling. The first tissue-engineered heart valve (TEHV) was created more than 20 years ago in an ovine model, and the technology has been advanced to clinical trials in the intervening decades. Some TEHVs have had clinical success, whereas others have failed, with structural degeneration resulting in patient deaths. The etiologies of these complications are poorly understood because much of the research in this field has been performed in large animals and humans, and, therefore, there are few studies of the mechanisms of neotissue formation. This review examines the need for a TEHV to treat pediatric patients with valve disease, the history of TEHVs, and a future that would benefit from extension of the reverse translational trend in this field to include small animal studies.
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Affiliation(s)
- Kevin M Blum
- 1 Center for Regenerative Medicine, The Research Institute at Nationwide Children's Hospital , Columbus, Ohio.,2 The Ohio State University College of Medicine , Columbus, Ohio
| | - Joseph D Drews
- 1 Center for Regenerative Medicine, The Research Institute at Nationwide Children's Hospital , Columbus, Ohio.,3 Department of Surgery, The Ohio State University Wexner Medical Center , Columbus, Ohio
| | - Christopher K Breuer
- 1 Center for Regenerative Medicine, The Research Institute at Nationwide Children's Hospital , Columbus, Ohio.,3 Department of Surgery, The Ohio State University Wexner Medical Center , Columbus, Ohio
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