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Bartolf-Kopp M, Jungst T. The Past, Present, and Future of Tubular Melt Electrowritten Constructs to Mimic Small Diameter Blood Vessels - A Stable Process? Adv Healthc Mater 2024; 13:e2400426. [PMID: 38607966 DOI: 10.1002/adhm.202400426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/20/2024] [Indexed: 04/14/2024]
Abstract
Melt Electrowriting (MEW) is a continuously growing manufacturing platform. Its advantage is the consistent production of micro- to nanometer fibers, that stack intricately, forming complex geometrical shapes. MEW allows tuning of the mechanical properties of constructs via the geometry of deposited fibers. Due to this, MEW can create complex mechanics only seen in multi-material compounds and serve as guiding structures for cellular alignment. The advantage of MEW is also shown in combination with other biotechnological manufacturing methods to create multilayered constructs that increase mechanical approximation to native tissues, biocompatibility, and cellular response. These features make MEW constructs a perfect candidate for small-diameter vascular graft structures. Recently, studies have presented fascinating results in this regard, but is this truly the direction that tubular MEW will follow or are there also other options on the horizon? This perspective will explore the origins and developments of tubular MEW and present its growing importance in the field of artificial small-diameter vascular grafts with mechanical modulation and improved biomimicry and the impact of it in convergence with other manufacturing methods and how future technologies like AI may influence its progress.
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Affiliation(s)
- Michael Bartolf-Kopp
- Department for Functional Materials in Medicine and Dentistry, Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg, Germany
| | - Tomasz Jungst
- Department for Functional Materials in Medicine and Dentistry, Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg, Germany
- Department of Orthopedics, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands
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2
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Antonova LV, Sevostianova VV, Silnikov VN, Krivkina EO, Velikanova EA, Mironov AV, Shabaev AR, Senokosova EA, Khanova MY, Glushkova TV, Akentieva TN, Sinitskaya AV, Markova VE, Shishkova DK, Lobov AA, Repkin EA, Stepanov AD, Kutikhin AG, Barbarash LS. Comparison of the Patency and Regenerative Potential of Biodegradable Vascular Prostheses of Different Polymer Compositions in an Ovine Model. Int J Mol Sci 2023; 24:ijms24108540. [PMID: 37239889 DOI: 10.3390/ijms24108540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
The lack of suitable autologous grafts and the impossibility of using synthetic prostheses for small artery reconstruction make it necessary to develop alternative efficient vascular grafts. In this study, we fabricated an electrospun biodegradable poly(ε-caprolactone) (PCL) prosthesis and poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/poly(ε-caprolactone) (PHBV/PCL) prosthesis loaded with iloprost (a prostacyclin analog) as an antithrombotic drug and cationic amphiphile with antibacterial activity. The prostheses were characterized in terms of their drug release, mechanical properties, and hemocompatibility. We then compared the long-term patency and remodeling features of PCL and PHBV/PCL prostheses in a sheep carotid artery interposition model. The research findings verified that the drug coating of both types of prostheses improved their hemocompatibility and tensile strength. The 6-month primary patency of the PCL/Ilo/A prostheses was 50%, while all PHBV/PCL/Ilo/A implants were occluded at the same time point. The PCL/Ilo/A prostheses were completely endothelialized, in contrast to the PHBV/PCL/Ilo/A conduits, which had no endothelial cells on the inner layer. The polymeric material of both prostheses degraded and was replaced with neotissue containing smooth-muscle cells; macrophages; proteins of the extracellular matrix such as type I, III, and IV collagens; and vasa vasorum. Thus, the biodegradable PCL/Ilo/A prostheses demonstrate better regenerative potential than PHBV/PCL-based implants and are more suitable for clinical use.
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Affiliation(s)
- Larisa V Antonova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Viktoriia V Sevostianova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Vladimir N Silnikov
- Laboratory of Organic Synthesis, Institute of Chemical Biology and Fundamental Medicine of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Evgeniya O Krivkina
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Elena A Velikanova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Andrey V Mironov
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Amin R Shabaev
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Evgenia A Senokosova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Mariam Yu Khanova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Tatiana V Glushkova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Tatiana N Akentieva
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Anna V Sinitskaya
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Victoria E Markova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Daria K Shishkova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Arseniy A Lobov
- Department of Regenerative Biomedicine, Research Institute of Cytology, 4 Tikhoretskiy Prospekt, St. Petersburg 194064, Russia
| | - Egor A Repkin
- Centre for Molecular and Cell Technologies, St. Petersburg State University, Universitetskaya Embankment, 7/9, St. Petersburg 199034, Russia
| | - Alexander D Stepanov
- Institute of Medicine, Kemerovo State University, 6 Krasnaya Street, Kemerovo 650000, Russia
| | - Anton G Kutikhin
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Leonid S Barbarash
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
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3
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Klabukov I, Balyasin M, Krasilnikova O, Tenchurin T, Titov A, Krasheninnikov M, Mudryak D, Sulina Y, Shepelev A, Chvalun S, Dyuzheva T, Yakimova A, Sosin D, Lyundup A, Baranovskii D, Shegay P, Kaprin A. Angiogenic Modification of Microfibrous Polycaprolactone by pCMV-VEGF165 Plasmid Promotes Local Vascular Growth after Implantation in Rats. Int J Mol Sci 2023; 24:ijms24021399. [PMID: 36674913 PMCID: PMC9865169 DOI: 10.3390/ijms24021399] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/26/2022] [Accepted: 01/04/2023] [Indexed: 01/12/2023] Open
Abstract
Insufficient vascular growth in the area of artificial-material implantation contributes to ischemia, fibrosis, the development of bacterial infections, and tissue necrosis around the graft. The purpose of this study was to evaluate angiogenesis after implantation of polycaprolactone microfiber scaffolds modified by a pCMV-VEGF165-plasmid in rats. Influence of vascularization on scaffold degradation was also examined. We investigated flat microfibrous scaffolds obtained by electrospinning polycaprolactone with incorporation of the pCMV-VEGF-165 plasmid into the microfibers at concentrations of 0.005 ng of plasmid per 1 mg of polycaprolactone (0.005 ng/mg) (LCGroup) and 0.05 ng/mg (HCGroup). The samples were subcutaneously implanted in the interscapular area of rats. On days 7, 16, 33, 46, and 64, the scaffolds were removed, and a histological study with a morphometric evaluation of the density and diameter of the vessels and microfiber diameter was performed. The number of vessels was increased in all groups, as well as the resorption of the scaffold. On day 33, the vascular density in the HCGroup was 42% higher compared to the control group (p = 0.0344). The dose-dependent effect of the pCMV-VEGF165-plasmid was confirmed by enhanced angiogenesis in the HCGroup compared to the LCGroup on day 33 (p-value = 0.0259). We did not find a statistically significant correlation between scaffold degradation rate and vessel growth (the Pearson correlation coefficient was ρ = 0.20, p-value = 0.6134). Functionalization of polycaprolactone by incorporation of the pCMV-VEGF165 plasmid provided improved vascularization within 33 days after implantation, however, vessel growth did not seem to correlate with scaffold degradation rate.
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Affiliation(s)
- Ilya Klabukov
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
- Obninsk Institute for Nuclear Power Engineering, National Research Nuclear University MEPhI, 115409 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- Correspondence:
| | - Maksim Balyasin
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Olga Krasilnikova
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
| | - Timur Tenchurin
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Alexander Titov
- City Clinical Hospital No. 67 of Moscow Health Department, 2/44, Salyama Adilya St., 123423 Moscow, Russia
| | - Mikhail Krasheninnikov
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- Lomonosov Institute of Fine Chemical Technologies, Russian Technological University MIREA, 119454 Moscow, Russia
| | - Daniil Mudryak
- City Clinical Hospital No. 67 of Moscow Health Department, 2/44, Salyama Adilya St., 123423 Moscow, Russia
- Department of Hospital Surgery, Sklifosovsky Institute of Clinical Medicine, Sechenov University, 119435 Moscow, Russia
| | - Yana Sulina
- Department of Obstetrics and Gynecology, Sechenov University, 119435 Moscow, Russia
| | - Alexey Shepelev
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Sergei Chvalun
- National Research Centre “Kurchatov Institute”, 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Tatiana Dyuzheva
- Department of Hospital Surgery, Sklifosovsky Institute of Clinical Medicine, Sechenov University, 119435 Moscow, Russia
| | - Anna Yakimova
- A. Tsyb Medical Research Radiological Center—Branch of the National Medical Research Radiological Center, Koroleva St. 4, 249036 Obninsk, Russia
| | - Dmitry Sosin
- Center for Strategic Planning and Management of Biomedical Health Risks of the Federal Medical Biological Agency, 125371 Moscow, Russia
| | - Alexey Lyundup
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Denis Baranovskii
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
- A. Tsyb Medical Research Radiological Center—Branch of the National Medical Research Radiological Center, Koroleva St. 4, 249036 Obninsk, Russia
| | - Peter Shegay
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Andrey Kaprin
- Department of Regenerative Medicine, National Medical Research Radiological Center, 249031 Obninsk, Russia
- Department of Urology and Operative Nephrology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
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Mukherjee P, Roy S, Ghosh D, Nandi SK. Role of animal models in biomedical research: a review. Lab Anim Res 2022; 38:18. [PMID: 35778730 PMCID: PMC9247923 DOI: 10.1186/s42826-022-00128-1] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 06/21/2022] [Indexed: 02/04/2023] Open
Abstract
The animal model deals with the species other than the human, as it can imitate the disease progression, its’ diagnosis as well as a treatment similar to human. Discovery of a drug and/or component, equipment, their toxicological studies, dose, side effects are in vivo studied for future use in humans considering its’ ethical issues. Here lies the importance of the animal model for its enormous use in biomedical research. Animal models have many facets that mimic various disease conditions in humans like systemic autoimmune diseases, rheumatoid arthritis, epilepsy, Alzheimer’s disease, cardiovascular diseases, Atherosclerosis, diabetes, etc., and many more. Besides, the model has tremendous importance in drug development, development of medical devices, tissue engineering, wound healing, and bone and cartilage regeneration studies, as a model in vascular surgeries as well as the model for vertebral disc regeneration surgery. Though, all the models have some advantages as well as challenges, but, present review has emphasized the importance of various small and large animal models in pharmaceutical drug development, transgenic animal models, models for medical device developments, studies for various human diseases, bone and cartilage regeneration model, diabetic and burn wound model as well as surgical models like vascular surgeries and surgeries for intervertebral disc degeneration considering all the ethical issues of that specific animal model. Despite, the process of using the animal model has facilitated researchers to carry out the researches that would have been impossible to accomplish in human considering the ethical prohibitions.
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Affiliation(s)
- P Mukherjee
- Department of Veterinary Clinical Complex, West Bengal University of Animal and Fishery Sciences, Mohanpur, Nadia, India
| | - S Roy
- Department of Veterinary Clinical Complex, West Bengal University of Animal and Fishery Sciences, Mohanpur, Nadia, India
| | - D Ghosh
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata, India
| | - S K Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata, India.
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Krivkina EO, Velikanova EA, Senokosova EA, Khanova MY, Glushkova TV, Antonova LV, Barbarash LS. Hemocompatibility And Cytotoxicity Of Small-Diameter Bioabsorbable Tissue-Engineered Vascular Grafts Depending On Anti-Thrombogenic And Antimicrobial Coating. RUSSIAN OPEN MEDICAL JOURNAL 2021. [DOI: 10.15275/rusomj.2021.0423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Anti-thrombogenic and antimicrobial coatings of polymer grafts constitute a promising approach to preventing infection and thrombosis of vascular grafts. The objective was to study the hemocompatibility and cytotoxicity of PHBV/PCL grafts with iloprost and amphiphilic coating. Material and Methods — Polymer matrices were manufactured by electrospinning a mixture of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and poly(ε-caprolactone) (PCL) polymers. Several matrices were modified by complexation between polyvinylpyrrolidone (PVP) and cationic amphiphile and/or iloprost. The amphiphile was covalently cross-linked to the surface of other PHBV/PCL matrices. Unmodified PHBV/PCL matrices were used as the control group. Hemocompatibility and cytotoxicity of scaffolds before and after the modification were evaluated. Results — The hemocompatibility assessment revealed that hemolysis degree did not exceed normal values in all types of matrices. The PHBV/PCL/PVP matrices had increased platelet aggregation on the surface of the grafts. Subsequent addition of iloprost and amphiphile resulted in a sevenfold reduction of platelet aggregation. In PHBV/PCL/PVP matrices, the degree of platelet adhesion increased without changing the platelet deformation index values. Iloprost and amphiphilic coating of PHBV/PCL/PVP matrices diminished the number of adhered platelets and platelet deformation index by 1.5 times. The amphiphile, covalently cross-linked to PHBV/PCL matrices, caused a negative effect on the platelet adhesion, aggregation, and deformation index values. Evaluation of cytotoxicity of PHBV/PCL/PVP matrices, coated with iloprost and/or cationic amphiphile, demonstrated a slight decline in the rates of cell growth and proliferation after three days. Moreover, after three days, cell deaths and a sharp drop in the cell index values were noted in PHBV/PCL matrices with covalently cross-linked amphiphile. Conclusion — Iloprost and amphiphilic coating of PHBV/PCL grafts has increased their hemocompatibility. Also, there were no signs of cytotoxicity while using the complexation technique. However, covalently cross-linked amphiphile caused an increase in the cytotoxicity of matrices, which may have been indicative of the negative effect observed in this type of surface modification.
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Affiliation(s)
- Eugenia O. Krivkina
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - Elena A. Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | | | - Maryam Yu. Khanova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - Tatyana V. Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - Larisa V. Antonova
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
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Gruzdeva OV, Bychkova EE, Penskaya TY, Kuzmina AA, Antonova LV, Barbarash LS. Comparative Analysis of the Hemostasiological Profile in Sheep and Patients with Cardiovascular Pathology as the Basis for Predicting Thrombotic Risks During Preclinical Tests of Vascular Prostheses. Sovrem Tekhnologii Med 2021; 13:52-56. [PMID: 34513066 PMCID: PMC8353693 DOI: 10.17691/stm2021.13.1.06] [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] [Received: 10/01/2020] [Indexed: 11/29/2022] Open
Abstract
The aim of the investigation was to study the details of hemostasiological profile in sheep and patients with coronary heart disease (CHD) and to find the possibility of predicting thrombotic risks during preclinical tests of vascular prostheses on a large laboratory animal model.
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Affiliation(s)
- O V Gruzdeva
- Head of the Laboratory of Homeostasis Research, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - E E Bychkova
- Research Assistant, Laboratory of Homeostasis Research, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - T Yu Penskaya
- Junior Researcher, Laboratory of Homeostasis Research, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - A A Kuzmina
- Junior Researcher, Laboratory of Homeostasis Research, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - L V Antonova
- Head of the Laboratory of Cell Technologies, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
| | - L S Barbarash
- Professor, Academician of the Russian Academy of Sciences, Chief Researcher, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Blvd, Kemerovo, 650002, Russia
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Ye L, Takagi T, Tu C, Hagiwara A, Geng X, Feng Z. The performance of heparin modified poly(ε-caprolactone) small diameter tissue engineering vascular graft in canine-A long-term pilot experiment in vivo. J Biomed Mater Res A 2021; 109:2493-2505. [PMID: 34096176 DOI: 10.1002/jbm.a.37243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 05/12/2021] [Accepted: 05/28/2021] [Indexed: 01/22/2023]
Abstract
Long-term in vivo observation in large animal model is critical for evaluating the potential of small diameter tissue engineering vascular graft (SDTEVG) in clinical application, but is rarely reported. In this study, a SDTEVG is fabricated by the electrospinning of poly(ε-caprolactone) and subsequent heparin modification. SDTEVG is implanted into canine's abdominal aorta for 511 days in order to investigate its clinical feasibility. An active and robust remodeling process was characterized by a confluent endothelium, macrophage infiltrate, extracellular matrix deposition and remodeling on the explanted graft. The immunohistochemical and immunofluorescence analysis further exhibit the regeneration of endothelium and smooth muscle layer on tunica intima and tunica media, respectively. Thus, long-term follow-up reveals viable neovessel formation beyond graft degradation. Furthermore, the von Kossa staining exhibits no occurrence of calcification. However, although no TEVG failure or rupture happens during the follow-up, the aneurysm is found by both Doppler ultrasonic and gross observation. Consequently, as-prepared TEVG shows promising potential in vascular tissue engineering if it can be appropriately strengthened to prevent the occurrence of aneurysm.
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Affiliation(s)
- Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,Department of Medical Life System, Doshisha University, Kyoto, Japan
| | - Toshitaka Takagi
- Department of Medical Life System, Doshisha University, Kyoto, Japan
| | - Chengzhao Tu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Akeo Hagiwara
- Department of Medical Life System, Doshisha University, Kyoto, Japan
| | - Xue Geng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing, China
| | - Zengguo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.,Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing, China
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Heparin-Eluting Tissue-Engineered Bioabsorbable Vascular Grafts. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104563] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The creation of small-diameter tissue-engineered vascular grafts using biodegradable materials has the potential to change the quality of cardiovascular surgery in the future. The implantation of these tissue-engineered arterial grafts has yet to reach clinical application. One of the reasons for this is thrombus occlusion of the graft in the acute phase. In this paper, we first describe the causes of accelerated thrombus formation and discuss the drugs that are thought to inhibit thrombus formation. We then review the latest research on methods to locally bind the anticoagulant heparin to biodegradable materials and methods to extend the duration of sustained heparin release. We also discuss the results of studies using large animal models and the challenges that need to be overcome for future clinical applications.
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9
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Gherasim O, Grumezescu AM, Ficai A, Grumezescu V, Holban AM, Gălățeanu B, Hudiță A. Composite P(3HB-3HV)-CS Spheres for Enhanced Antibiotic Efficiency. Polymers (Basel) 2021; 13:989. [PMID: 33807077 PMCID: PMC8004896 DOI: 10.3390/polym13060989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 01/17/2023] Open
Abstract
Natural-derived biopolymers are suitable candidates for developing specific and selective performance-enhanced antimicrobial formulations. Composite polymeric particles based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and chitosan, P(3HB-3HV)-CS, are herein proposed as biocompatible and biodegradable delivery systems for bioproduced antibiotics: bacitracin (Bac), neomycin (Neo) and kanamycin (Kan). The stimuli-responsive spheres proved efficient platforms for boosting the antibiotic efficiency and antibacterial susceptibility, as evidenced against Gram-positive and Gram-negative strains. Absent or reduced proinflammatory effects were evidenced on macrophages in the case of Bac-/Neo- and Kan-loaded spheres, respectively. Moreover, these systems showed superior ability to sustain and promote the proliferation of dermal fibroblasts, as well as to preserve their ultrastructure (membrane and cytoskeleton integrity) and to exhibit anti-oxidant activity. The antibiotic-loaded P(3HB-3HV)-CS spheres proved efficient alternatives for antibacterial strategies.
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Affiliation(s)
- Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (A.F.)
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (A.F.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania; (O.G.); (A.M.G.); (A.F.)
| | - Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma, and Radiation Physics, RO-77125 Magurele, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
| | - Alina Maria Holban
- Microbiology & Immunology Department, Faculty of Biology, University of Bucharest, 77206 Bucharest, Romania;
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (B.G.); (A.H.)
| | - Ariana Hudiță
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei, 050095 Bucharest, Romania; (B.G.); (A.H.)
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Mallis P, Kostakis A, Stavropoulos-Giokas C, Michalopoulos E. Future Perspectives in Small-Diameter Vascular Graft Engineering. Bioengineering (Basel) 2020; 7:E160. [PMID: 33321830 PMCID: PMC7763104 DOI: 10.3390/bioengineering7040160] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/04/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023] Open
Abstract
The increased demands of small-diameter vascular grafts (SDVGs) globally has forced the scientific society to explore alternative strategies utilizing the tissue engineering approaches. Cardiovascular disease (CVD) comprises one of the most lethal groups of non-communicable disorders worldwide. It has been estimated that in Europe, the healthcare cost for the administration of CVD is more than 169 billion €. Common manifestations involve the narrowing or occlusion of blood vessels. The replacement of damaged vessels with autologous grafts represents one of the applied therapeutic approaches in CVD. However, significant drawbacks are accompanying the above procedure; therefore, the exploration of alternative vessel sources must be performed. Engineered SDVGs can be produced through the utilization of non-degradable/degradable and naturally derived materials. Decellularized vessels represent also an alternative valuable source for the development of SDVGs. In this review, a great number of SDVG engineering approaches will be highlighted. Importantly, the state-of-the-art methodologies, which are currently employed, will be comprehensively presented. A discussion summarizing the key marks and the future perspectives of SDVG engineering will be included in this review. Taking into consideration the increased number of patients with CVD, SDVG engineering may assist significantly in cardiovascular reconstructive surgery and, therefore, the overall improvement of patients' life.
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Affiliation(s)
- Panagiotis Mallis
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27 Athens, Greece; (C.S.-G.); (E.M.)
| | - Alkiviadis Kostakis
- Center of Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27 Athens, Greece;
| | - Catherine Stavropoulos-Giokas
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27 Athens, Greece; (C.S.-G.); (E.M.)
| | - Efstathios Michalopoulos
- Hellenic Cord Blood Bank, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou Street, 115 27 Athens, Greece; (C.S.-G.); (E.M.)
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