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Behrangzade A, Ye SH, Maestas DR, Wagner WR, Vande Geest JP. Improving the hemocompatibility of a porohyperelastic layered vascular graft using luminal reversal microflows. J Mech Behav Biomed Mater 2024; 157:106638. [PMID: 38996626 DOI: 10.1016/j.jmbbm.2024.106638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 07/14/2024]
Abstract
Vascular graft thrombosis is a long-standing clinical problem. A myriad of efforts have been devoted to reducing thrombus formation following bypass surgery. Researchers have primarily taken a chemical approach to engineer and modify surfaces, seeking to make them more suitable for blood contacting applications. Using mechanical forces and surface topology to prevent thrombus formation has recently gained more attention. In this study, we have designed a bilayered porous vascular graft capable of repelling platelets and destabilizing absorbed protein layers from the luminal surface. During systole, fluid penetrates through the graft wall and is subsequently ejected from the wall into the luminal space (Luminal Reversal Flow - LRF), pushing platelets away from the surface during diastole. In-vitro hemocompatibility tests were conducted to compare platelet deposition in high LRF grafts with low LRF grafts. Graft material properties were determined and utilized in a porohyperelastic (PHE) finite element model to computationally predict the LRF generation in each graft type. Hemocompatibility testing showed significantly lower platelet deposition values in high versus low LRF generating grafts (median±IQR = 5,708 ± 987 and 23,039 ± 3,310 platelets per mm2, respectively, p=0.032). SEM imaging of the luminal surface of both graft types confirmed the quantitative blood test results. The computational simulations of high and low LRF generating grafts resulted in LRF values of -10.06 μm/s and -2.87 μm/s, respectively. These analyses show that a 250% increase in LRF is associated with a 75.2% decrease in platelet deposition. PHE vascular grafts with high LRF have the potential to improve anti-thrombogenicity and reduce thrombus-related post-procedure complications. Additional research is required to overcome the limitations of current graft fabrication technologies that further enhance LRF generation.
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Affiliation(s)
- Ali Behrangzade
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Sang-Ho Ye
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - David R Maestas
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - William R Wagner
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States of America; Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, United States of America; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Jonathan P Vande Geest
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States of America; Department of Mechanical Engineering and Material Science, University of Pittsburgh, Pittsburgh, PA, United States of America; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States of America; Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, United States of America.
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2
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Ren ZW, Wang ZY, Ding YW, Dao JW, Li HR, Ma X, Yang XY, Zhou ZQ, Liu JX, Mi CH, Gao ZC, Pei H, Wei DX. Polyhydroxyalkanoates: the natural biopolyester for future medical innovations. Biomater Sci 2023; 11:6013-6034. [PMID: 37522312 DOI: 10.1039/d3bm01043k] [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: 08/01/2023]
Abstract
Polyhydroxyalkanoates (PHAs) are a family of natural microbial biopolyesters with the same basic chemical structure and diverse side chain groups. Based on their excellent biodegradability, biocompatibility, thermoplastic properties and diversity, PHAs are highly promising medical biomaterials and elements of medical devices for applications in tissue engineering and drug delivery. However, due to the high cost of biotechnological production, most PHAs have yet to be applied in the clinic and have only been studied at laboratory scale. This review focuses on the biosynthesis, diversity, physical properties, biodegradability and biosafety of PHAs. We also discuss optimization strategies for improved microbial production of commercial PHAs via novel synthetic biology tools. Moreover, we also systematically summarize various medical devices based on PHAs and related design approaches for medical applications, including tissue repair and drug delivery. The main degradation product of PHAs, 3-hydroxybutyrate (3HB), is recognized as a new functional molecule for cancer therapy and immune regulation. Although PHAs still account for only a small percentage of medical polymers, up-and-coming novel medical PHA devices will enter the clinical translation stage in the next few years.
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Affiliation(s)
- Zi-Wei Ren
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Ze-Yu Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Yan-Wen Ding
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Jin-Wei Dao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
- Dehong Biomedical Engineering Research Center, Dehong Teachers' College, Dehong, 678400, China
| | - Hao-Ru Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Xue Ma
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Xin-Yu Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Zi-Qi Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Jia-Xuan Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Chen-Hui Mi
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
| | - Zhe-Chen Gao
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Hua Pei
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China.
| | - Dai-Xu Wei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China.
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hainan Medical University, Haikou, 570311, China.
- Shaanxi Key Laboratory for Carbon Neutral Technology, Xi'an, 710069, China
- Zigong Affiliated Hospital of Southwest Medical University, Zigong Psychiatric Research Center, Zigong Institute of Brain Science, Zigong, 643002, Sichuan, China
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3
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Nicosia A, Salamone M, Costa S, Ragusa MA, Ghersi G. Mimicking Molecular Pathways in the Design of Smart Hydrogels for the Design of Vascularized Engineered Tissues. Int J Mol Sci 2023; 24:12314. [PMID: 37569691 PMCID: PMC10418696 DOI: 10.3390/ijms241512314] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/21/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Biomaterials are pivotal in supporting and guiding vascularization for therapeutic applications. To design effective, bioactive biomaterials, understanding the cellular and molecular processes involved in angiogenesis and vasculogenesis is crucial. Biomaterial platforms can replicate the interactions between cells, the ECM, and the signaling molecules that trigger blood vessel formation. Hydrogels, with their soft and hydrated properties resembling natural tissues, are widely utilized; particularly synthetic hydrogels, known for their bio-inertness and precise control over cell-material interactions, are utilized. Naturally derived and synthetic hydrogel bases are tailored with specific mechanical properties, controlled for biodegradation, and enhanced for cell adhesion, appropriate biochemical signaling, and architectural features that facilitate the assembly and tubulogenesis of vascular cells. This comprehensive review showcases the latest advancements in hydrogel materials and innovative design modifications aimed at effectively guiding and supporting vascularization processes. Furthermore, by leveraging this knowledge, researchers can advance biomaterial design, which will enable precise support and guidance of vascularization processes and ultimately enhance tissue functionality and therapeutic outcomes.
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Affiliation(s)
- Aldo Nicosia
- Institute for Biomedical Research and Innovation-National Research Council (IRIB-CNR), Via Ugo la Malfa 153, 90146 Palermo, Italy;
| | - Monica Salamone
- Institute for Biomedical Research and Innovation-National Research Council (IRIB-CNR), Via Ugo la Malfa 153, 90146 Palermo, Italy;
| | - Salvatore Costa
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
| | - Maria Antonietta Ragusa
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
| | - Giulio Ghersi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; (S.C.); (M.A.R.); (G.G.)
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Behrangzade A, Simon BR, Wagner WR, Geest JPV. Optimizing the Porohyperelastic Response of a Layered Compliance Matched Vascular Graft to Promote Luminal Self-Cleaning. J Biomech Eng 2023; 145:021002. [PMID: 36082481 PMCID: PMC9632477 DOI: 10.1115/1.4055563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 08/17/2022] [Indexed: 11/08/2022]
Abstract
Thrombosis and intimal hyperplasia have remained the major failure mechanisms of small-diameter vascular grafts used in bypass procedures. While most efforts to reduce thrombogenicity have used a biochemical surface modification approach, the use of local mechanical phenomena to aid in this goal has received somewhat less attention. In this work, the mechanical, fluid transport, and geometrical properties of a layered and porous vascular graft are optimized within a porohyperelastic finite element framework to maximize self-cleaning via luminal reversal fluid velocity (into the lumen). This is expected to repel platelets as well as inhibit the formation of and/or destabilize adsorbed protein layers thereby reducing thrombogenic potential. A particle swarm optimization algorithm was utilized to maximize luminal reversal fluid velocity while also compliance matching our graft to a target artery (rat aorta). The maximum achievable luminal reversal fluid velocity was approximately 246 μm/s without simultaneously optimizing for host compliance. Simultaneous optimization of reversal flow and compliance resulted in a luminal reversal fluid velocity of 59 μm/s. Results indicate that a thick highly permeable compressible inner layer and a thin low permeability incompressible outer layer promote intraluminal reversal fluid velocity. Future research is needed to determine the feasibility of fabricating such a layered and optimized graft and verify its ability to improve hemocompatibility.
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Affiliation(s)
- Ali Behrangzade
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219
| | - Bruce R. Simon
- Aerospace and Mechanical Engineering, Biomedical Engineering Interdisciplinary Program University of Arizona, Tucson, AZ 85721
| | - William R. Wagner
- Department of Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219; Department of Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219
| | - Jonathan P. Vande Geest
- Department of Bioengineering, McGowan Institute for Regenerative Medicine, Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15219; Department of Mechanical Engineering and Material Science, McGowan Institute for Regenerative Medicine, Vascular Medicine Institute University of Pittsburgh, Pittsburgh, PA 15219
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5
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Markova V, Bogdanov L, Velikanova E, Kanonykina A, Frolov A, Shishkova D, Lazebnaya A, Kutikhin A. Endothelial Cell Markers Are Inferior to Vascular Smooth Muscle Cells Markers in Staining Vasa Vasorum and Are Non-Specific for Distinct Endothelial Cell Lineages in Clinical Samples. Int J Mol Sci 2023; 24:ijms24031959. [PMID: 36768296 PMCID: PMC9916324 DOI: 10.3390/ijms24031959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/20/2023] Open
Abstract
Current techniques for the detection of vasa vasorum (VV) in vascular pathology include staining for endothelial cell (EC) markers such as CD31 or VE-cadherin. However, this approach does not permit an objective assessment of vascular geometry upon vasospasm and the clinical relevance of endothelial specification markers found in developmental biology studies remains unclear. Here, we performed a combined immunostaining of rat abdominal aorta (rAA) and human saphenous vein (hSV) for various EC or vascular smooth muscle cell (VSMC) markers and found that the latter (e.g., alpha smooth muscle actin (α-SMA) or smooth muscle myosin heavy chain (SM-MHC)) ensure a several-fold higher signal-to-noise ratio irrespective of the primary antibody origin, fluorophore, or VV type (arterioles, venules, or capillaries). Further, α-SMA or SM-MHC staining allowed unbiased evaluation of the VV area under vasospasm. Screening of the molecular markers of endothelial heterogeneity (mechanosensitive transcription factors KLF2 and KLF4, arterial transcription factors HES1, HEY1, and ERG, venous transcription factor NR2F2, and venous/lymphatic markers PROX1, LYVE1, VEGFR3, and NRP2) have not revealed specific markers of any lineage in hSV (although KLF2 and PROX1 were restricted to venous endothelium in rAA), suggesting the need in high-throughput searches for the clinically relevant signatures of arterial, venous, lymphatic, or capillary differentiation.
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6
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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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Antonova L, Kutikhin A, Sevostianova V, Lobov A, Repkin E, Krivkina E, Velikanova E, Mironov A, Mukhamadiyarov R, Senokosova E, Khanova M, Shishkova D, Markova V, Barbarash L. Controlled and Synchronised Vascular Regeneration upon the Implantation of Iloprost- and Cationic Amphiphilic Drugs-Conjugated Tissue-Engineered Vascular Grafts into the Ovine Carotid Artery: A Proteomics-Empowered Study. Polymers (Basel) 2022; 14:polym14235149. [PMID: 36501545 PMCID: PMC9736446 DOI: 10.3390/polym14235149] [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: 10/23/2022] [Revised: 11/17/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022] Open
Abstract
Implementation of small-diameter tissue-engineered vascular grafts (TEVGs) into clinical practice is still delayed due to the frequent complications, including thrombosis, aneurysms, neointimal hyperplasia, calcification, atherosclerosis, and infection. Here, we conjugated a vasodilator/platelet inhibitor, iloprost, and an antimicrobial cationic amphiphilic drug, 1,5-bis-(4-tetradecyl-1,4-diazoniabicyclo [2.2.2]octan-1-yl) pentane tetrabromide, to the luminal surface of electrospun poly(ε-caprolactone) (PCL) TEVGs for preventing thrombosis and infection, additionally enveloped such TEVGs into the PCL sheath to preclude aneurysms, and implanted PCLIlo/CAD TEVGs into the ovine carotid artery (n = 12) for 6 months. The primary patency was 50% (6/12 animals). TEVGs were completely replaced with the vascular tissue, free from aneurysms, calcification, atherosclerosis and infection, completely endothelialised, and had clearly distinguishable medial and adventitial layers. Comparative proteomic profiling of TEVGs and contralateral carotid arteries found that TEVGs lacked contractile vascular smooth muscle cell markers, basement membrane components, and proteins mediating antioxidant defense, concurrently showing the protein signatures of upregulated protein synthesis, folding and assembly, enhanced energy metabolism, and macrophage-driven inflammation. Collectively, these results suggested a synchronised replacement of PCL with a newly formed vascular tissue but insufficient compliance of PCLIlo/CAD TEVGs, demanding their testing in the muscular artery position or stimulation of vascular smooth muscle cell specification after the implantation.
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Affiliation(s)
- Larisa Antonova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Anton Kutikhin
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
- Correspondence: ; Tel.: +7-9609077067
| | - Viktoriia Sevostianova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Arseniy Lobov
- Department of Regenerative Biomedicine, Research Institute of Cytology, 4 Tikhoretskiy Prospekt, Saint Petersburg 194064, Russia
| | - Egor Repkin
- Centre for Molecular and Cell Technologies, Saint Petersburg State University, Universitetskaya Embankment, 7/9, Saint Petersburg 199034, Russia
| | - Evgenia Krivkina
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Elena Velikanova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Andrey Mironov
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Rinat Mukhamadiyarov
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Evgenia Senokosova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Mariam Khanova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Daria Shishkova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Victoria Markova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
| | - Leonid Barbarash
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6 Sosnovy Boulevard, Kemerovo 650002, Russia
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8
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Guo W, Yang K, Qin X, Luo R, Wang H, Huang R. Polyhydroxyalkanoates in tissue repair and regeneration. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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9
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Rickel AP, Deng X, Engebretson D, Hong Z. Electrospun nanofiber scaffold for vascular tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112373. [PMID: 34579892 DOI: 10.1016/j.msec.2021.112373] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 12/16/2022]
Abstract
Due to the prevalence of cardiovascular diseases, there is a large need for small diameter vascular grafts that cannot be fulfilled using autologous vessels. Although medium to large diameter synthetic vessels are in use, no suitable small diameter vascular graft has been developed due to the unique dynamic environment that exists in small vessels. To achieve long term patency, a successful tissue engineered vascular graft would need to closely match the mechanical properties of native tissue, be non-thrombotic and non-immunogenic, and elicit the proper healing response and undergo remodeling to incorporate into the native vasculature. Electrospinning presents a promising approach to the development of a suitable tissue engineered vascular graft. This review provides a comprehensive overview of the different polymers, techniques, and functionalization approaches that have been used to develop an electrospun tissue engineered vascular graft.
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Affiliation(s)
- Alex P Rickel
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Xiajun Deng
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Daniel Engebretson
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America
| | - Zhongkui Hong
- The Department of Biomedical Engineering, The University of South Dakota, Sioux Falls, SD 57107, United States of America.
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10
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Antonova LV, Krivkina EO, Sevostianova VV, Mironov AV, Rezvova MA, Shabaev AR, Tkachenko VO, Krutitskiy SS, Khanova MY, Sergeeva TY, Matveeva VG, Glushkova TV, Kutikhin AG, Mukhamadiyarov RA, Deeva NS, Akentieva TN, Sinitsky MY, Velikanova EA, Barbarash LS. Tissue-Engineered Carotid Artery Interposition Grafts Demonstrate High Primary Patency and Promote Vascular Tissue Regeneration in the Ovine Model. Polymers (Basel) 2021; 13:polym13162637. [PMID: 34451177 PMCID: PMC8400235 DOI: 10.3390/polym13162637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 12/24/2022] Open
Abstract
Tissue-engineered vascular graft for the reconstruction of small arteries is still an unmet clinical need, despite the fact that a number of promising prototypes have entered preclinical development. Here we test Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)Poly(ε-caprolactone) 4-mm-diameter vascular grafts equipped with vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF) and stromal cell-derived factor 1α (SDF-1α) and surface coated with heparin and iloprost (PHBV/PCL[VEGF-bFGF-SDF]Hep/Ilo, n = 8) in a sheep carotid artery interposition model, using biostable vascular prostheses of expanded poly(tetrafluoroethylene) (ePTFE, n = 5) as a control. Primary patency of PHBV/PCL[VEGF-bFGF-SDF]Hep/Ilo grafts was 62.5% (5/8) at 24 h postimplantation and 50% (4/8) at 18 months postimplantation, while all (5/5) ePTFE conduits were occluded within the 24 h after the surgery. At 18 months postimplantation, PHBV/PCL[VEGF-bFGF-SDF]Hep/Ilo grafts were completely resorbed and replaced by the vascular tissue. Regenerated arteries displayed a hierarchical three-layer structure similar to the native blood vessels, being fully endothelialised, highly vascularised and populated by vascular smooth muscle cells and macrophages. The most (4/5, 80%) of the regenerated arteries were free of calcifications but suffered from the aneurysmatic dilation. Therefore, biodegradable PHBV/PCL[VEGF-bFGF-SDF]Hep/Ilo grafts showed better short- and long-term results than bio-stable ePTFE analogues, although these scaffolds must be reinforced for the efficient prevention of aneurysms.
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Affiliation(s)
- Larisa V. Antonova
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Evgenia O. Krivkina
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Viktoriia V. Sevostianova
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
- Correspondence: ; Tel.: +7-9069356076
| | - Andrey V. Mironov
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Maria A. Rezvova
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Amin R. Shabaev
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Vadim O. Tkachenko
- Budker Institute of Nuclear Physics of Siberian Branch Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Sergey S. Krutitskiy
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Mariam Yu. Khanova
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Tatiana Yu. Sergeeva
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Vera G. Matveeva
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Tatiana V. Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Anton G. Kutikhin
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Rinat A. Mukhamadiyarov
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Nadezhda S. Deeva
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Tatiana N. Akentieva
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Maxim Yu. Sinitsky
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Elena A. Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
| | - Leonid S. Barbarash
- Research Institute for Complex Issues of Cardiovascular Diseases, 650002 Kemerovo, Russia; (L.V.A.); (E.O.K.); (A.V.M.); (M.A.R.); (A.R.S.); (S.S.K.); (M.Y.K.); (T.Y.S.); (V.G.M.); (T.V.G.); (A.G.K.); (R.A.M.); (N.S.D.); (T.N.A.); (M.Y.S.); (E.A.V.); (L.S.B.)
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11
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Steiner D, Winkler S, Heltmann-Meyer S, Trossmann VT, Fey T, Scheibel T, Horch RE, Arkudas A. Enhanced vascularization and de novotissue formation in hydrogels made of engineered RGD-tagged spider silk proteins in the arteriovenous loop model. Biofabrication 2021; 13. [PMID: 34157687 DOI: 10.1088/1758-5090/ac0d9b] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022]
Abstract
Due to its low immunogenic potential and the possibility to fine-tune their properties, materials made of recombinant engineered spider silks are promising candidates for tissue engineering applications. However, vascularization of silk-based scaffolds is one critical step for the generation of bioartificial tissues and consequently for clinical application. To circumvent insufficient vascularization, the surgically induced angiogenesis by means of arteriovenous loops (AVL) represents a highly effective methodology. Here, previously established hydrogels consisting of nano-fibrillary recombinant eADF4(C16) were transferred into Teflon isolation chambers and vascularized in the rat AVL model over 4 weeks. To improve vascularization, also RGD-tagged eADF4(C16) hydrogels were implanted in the AVL model over 2 and 4 weeks. Thereafter, the specimen were explanted and analyzed using histology and microcomputed tomography. We were able to confirm biocompatibility and tissue formation over time. Functionalizing eADF4(C16) with RGD-motifs improved hydrogel stability and enhanced vascularization even outperforming other hydrogels, such as fibrin. This study demonstrates that the scaffold ultrastructure as well as biofunctionalization with RGD-motifs are powerful tools to optimize silk-based biomaterials for tissue engineering applications.
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Affiliation(s)
- Dominik Steiner
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sophie Winkler
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Stefanie Heltmann-Meyer
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Vanessa T Trossmann
- Faculty of Engineering, Department for Biomaterials, University of Bayreuth, 95447 Bayreuth, Germany
| | - Tobias Fey
- Department of Materials Science and Engineering, Institute of Glass and Ceramics, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany.,Frontier Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Thomas Scheibel
- Faculty of Engineering, Department for Biomaterials, University of Bayreuth, 95447 Bayreuth, Germany.,Bayreuth Center for Colloids and Interfaces (BZKG), University of Bayreuth, 95447 Bayreuth, Germany.,Bayreuth Center for Molecular Biosciences (BZMB), University of Bayreuth, 95447 Bayreuth, Germany.,Center for Material Science and Engineering (BayMAT), University of Bayreuth, 95447 Bayreuth, Germany.,Bavarian Polymer Institute (BPI), University of Bayreuth, 95447 Bayreuth, Germany
| | - Raymund E Horch
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Andreas Arkudas
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
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12
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Antonova L, Kutikhin A, Sevostianova V, Velikanova E, Matveeva V, Glushkova T, Mironov A, Krivkina E, Shabaev A, Senokosova E, Barbarash L. bFGF and SDF-1α Improve In Vivo Performance of VEGF-Incorporating Small-Diameter Vascular Grafts. Pharmaceuticals (Basel) 2021; 14:ph14040302. [PMID: 33800631 PMCID: PMC8065794 DOI: 10.3390/ph14040302] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/21/2021] [Accepted: 03/25/2021] [Indexed: 12/01/2022] Open
Abstract
Tissue-engineered vascular grafts are widely tested as a promising substitute for both arterial bypass and replacement surgery. We previously demonstrated that incorporation of VEGF into electrospun tubular scaffolds from poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/poly(ε-caprolactone) enhances formation of an endothelial cell monolayer. However, an overdose of VEGF can induce tumor-like vasculature; thereby, other bioactive factors are needed to support VEGF-driven endothelialization and successful recruitment of smooth muscle cells. Utilizing emulsion electrospinning, we fabricated one-layer vascular grafts with either VEGF, bFGF, or SDF-1α, and two-layer vascular grafts with VEGF incorporated into the inner layer and bFGF and SDF-1α incorporated into the outer layer with the following structural evaluation, tensile testing, and in vivo testing using a rat abdominal aorta replacement model. The latter graft prototype showed higher primary patency rate. We found that the two-layer structure improved surface topography and mechanical properties of the grafts. Further, the combination of bFGF, SDF-1α, and VEGF improved endothelialization compared with VEGF alone, while bFGF induced a rapid formation of a smooth muscle cell layer. Taken together, these findings show that the two-layer structure and incorporation of bFGF and SDF-1α into the vascular grafts in combination with VEGF provide a higher primary patency and therefore improved in vivo performance.
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13
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Zhu M, He H, Meng Q, Zhu Y, Ye X, Xu N, Yu J. Osteopontin sequence modified mesoporous calcium silicate scaffolds to promote angiogenesis in bone tissue regeneration. J Mater Chem B 2021; 8:5849-5861. [PMID: 32530014 DOI: 10.1039/d0tb00527d] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Sufficient blood supply remains the key issue to be addressed for an optimal performance of implanted bone tissue engineering scaffolds. Host vessel invasion is limited to a depth of only several hundred micrometers from the scaffold/host interface. In this study, an osteopontin sequenced polypeptide SVVYGLR was grafted into/onto mesoporous calcium silicate (MCS) and then 3D-printed into scaffolds. The peptide motifs can be accessed on the scaffold surfaces and released as well. In vitro studies of human umbilical vein endothelial cells (HUVECs) indicated enhanced cell adhesion and vascular-like structure formation on MCS-SVVYGLR scaffolds. At the same time, human bone marrow stromal cells (hBMSCs) showed enhanced osteogenic differentiation capability and higher expression levels of angiogenic genes and proteins as well. The results of in vivo radial defect repair tests of rabbits showed that more tubular vessels formed throughout the whole MCS-SVVYGLR scaffolds, and therefore, a more homogeneous new bone formation pattern was obtained on MCS-SVVYGLR scaffolds instead of a peripheral bone growth pattern on pure MCS scaffolds by Micro-CT and tissue staining techniques over 3 months. Relative gene and protein expressions in PI3K/AKT and ERK1/2 pathways suggested that the SVVYGLR motif on the MCS scaffold surface could initiate the PI3K/AKT signaling pathway and up-regulate ERK1/2 expression, which positively stimulated VEGF expression, to improve angiogenesis.
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Affiliation(s)
- Min Zhu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
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14
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Zhao J, Santino F, Giacomini D, Gentilucci L. Integrin-Targeting Peptides for the Design of Functional Cell-Responsive Biomaterials. Biomedicines 2020; 8:E307. [PMID: 32854363 PMCID: PMC7555639 DOI: 10.3390/biomedicines8090307] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/21/2020] [Accepted: 08/23/2020] [Indexed: 01/17/2023] Open
Abstract
Integrins are a family of cell surface receptors crucial to fundamental cellular functions such as adhesion, signaling, and viability, deeply involved in a variety of diseases, including the initiation and progression of cancer, of coronary, inflammatory, or autoimmune diseases. The natural ligands of integrins are glycoproteins expressed on the cell surface or proteins of the extracellular matrix. For this reason, short peptides or peptidomimetic sequences that reproduce the integrin-binding motives have attracted much attention as potential drugs. When challenged in clinical trials, these peptides/peptidomimetics let to contrasting and disappointing results. In the search for alternative utilizations, the integrin peptide ligands have been conjugated onto nanoparticles, materials, or drugs and drug carrier systems, for specific recognition or delivery of drugs to cells overexpressing the targeted integrins. Recent research in peptidic integrin ligands is exploring new opportunities, in particular for the design of nanostructured, micro-fabricated, cell-responsive, stimuli-responsive, smart materials.
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Affiliation(s)
| | | | | | - Luca Gentilucci
- Department of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy; (J.Z.); (F.S.); (D.G.)
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15
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Mertgen AS, Trossmann VT, Guex AG, Maniura-Weber K, Scheibel T, Rottmar M. Multifunctional Biomaterials: Combining Material Modification Strategies for Engineering of Cell-Contacting Surfaces. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21342-21367. [PMID: 32286789 DOI: 10.1021/acsami.0c01893] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In the human body, cells in a tissue are exposed to signals derived from their specific extracellular matrix (ECM), such as architectural structure, mechanical properties, and chemical composition (proteins, growth factors). Research on biomaterials in tissue engineering and regenerative medicine aims to recreate such stimuli using engineered materials to induce a specific response of cells at the interface. Although traditional biomaterials design has been mostly limited to varying individual signals, increasing interest has arisen on combining several features in recent years to improve the mimicry of extracellular matrix properties. Tremendous progress in combinatorial surface modification exploiting, for example, topographical features or variations in mechanics combined with biochemical cues has enabled the identification of their key regulatory characteristics on various cell fate decisions. Gradients especially facilitated such research by enabling the investigation of combined continuous changes of different signals. Despite unravelling important synergies for cellular responses, challenges arise in terms of fabrication and characterization of multifunctional engineered materials. This review summarizes recent work on combinatorial surface modifications that aim to control biological responses. Modification and characterization methods for enhanced control over multifunctional material properties are highlighted and discussed. Thereby, this review deepens the understanding and knowledge of biomimetic combinatorial material modification, their challenges but especially their potential.
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Affiliation(s)
- Anne-Sophie Mertgen
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Vanessa Tanja Trossmann
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof.-Rüdiger-Bormann-Strasse 1, Bayreuth 95440, Germany
| | - Anne Géraldine Guex
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Katharina Maniura-Weber
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Thomas Scheibel
- Lehrstuhl für Biomaterialien, Bayerisches Polymerinstitut (BPI), Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Bayreuth 95440, Germany
| | - Markus Rottmar
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
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Cong X, Zhang SM, Batty L, Luo J. Application of Human Induced Pluripotent Stem Cells in Generating Tissue-Engineered Blood Vessels as Vascular Grafts. Stem Cells Dev 2019; 28:1581-1594. [PMID: 31663439 DOI: 10.1089/scd.2019.0234] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In pace with the advancement of tissue engineering during recent decades, tissue-engineered blood vessels (TEBVs) have been generated using primary seed cells, and their impressive success in clinical trials have demonstrated the great potential of these TEBVs as implantable vascular grafts in human regenerative medicine. However, the production, therapeutic efficacy, and readiness in emergencies of current TEBVs could be hindered by the accessibility, expandability, and donor-donor variation of patient-specific primary seed cells. Alternatively, using human induced pluripotent stem cells (hiPSCs) to derive seed vascular cells for vascular tissue engineering could fundamentally address this current dilemma in TEBV production. As an emerging research field with a promising future, the generation of hiPSC-based TEBVs has been reported recently with significant progress. Simultaneously, to further promote hiPSC-based TEBVs into vascular grafts for clinical use, several challenges related to the safety, readiness, and structural integrity of vascular tissue need to be addressed. Herein, this review will focus on the evolution and role of hiPSCs in vascular tissue engineering technology and summarize the current progress, challenges, and future directions of research on hiPSC-based TEBVs.
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Affiliation(s)
- Xiaoqiang Cong
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut.,Department of Cardiology, Bethune First Hospital of Jilin University, ChangChun, China
| | - Shang-Min Zhang
- Department of Pathology, Yale School of Medicine, New Haven, Connecticut
| | - Luke Batty
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut.,Department of Cellular and Molecular Physiology, Yale University, New Haven, Connecticut
| | - Jiesi Luo
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut.,Yale Stem Cell Center, School of Medicine, Yale University, New Haven, Connecticut
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Jin D, Hu J, Xia D, Liu A, Kuang H, Du J, Mo X, Yin M. Evaluation of a simple off-the-shelf bi-layered vascular scaffold based on poly(L-lactide-co-ε-caprolactone)/silk fibroin in vitro and in vivo. Int J Nanomedicine 2019; 14:4261-4276. [PMID: 31289441 PMCID: PMC6565934 DOI: 10.2147/ijn.s205569] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/01/2019] [Indexed: 12/20/2022] Open
Abstract
Purpose: In the field of small-caliber vascular scaffold research, excellent vascular remodeling is the key to ensuring anticoagulant function. We prepared an off-the-shelf bi-layered vascular scaffold with a dense inner layer and a loose outer layer and evaluated its remodeling capabilities by in vivo transplantation. Materials and Methods: Based on poly(L-lactide-co-ε-caprolactone) (PLCL), silk fibroin(SF), and heparin (Hep), PLCL/SF/Hep bi-layered scaffolds and PLCL/Hep bi-layered scaffolds were prepared by electrospinning. The inner layer was a PLCL/SF/Hep or PLCL/Hep nanofiber membrane, and the outer layer was PLCL/SF nano yarn. The in vitro tests included a hydrophilicity test, mechanical properties test, and blood and cell compatibility evaluation. The in vivo evaluation was conducted via single rabbit carotid artery replacement and subsequent examinations, including ultrasound imaging, immunoglobulin assays, and tissue section staining. Results: Compared to the PLCL/Hep nanofiber membrane, the hydrophilicity of the PLCL/SF/Hep nanofiber membrane was significantly improved. The mechanical strength met application requirements. Both the blood and cell compatibility were optimal. Most importantly, the PLCL/SF/Hep scaffolds maintained lumen patency for 3 months after carotid artery transplantation in live rabbits. At the same time, CD31 and α-SMA immunofluorescence staining confirmed bionic endothelial and smooth muscle layers remodeling. Conclusion: Using this hybrid strategy, PLCL and SF were combined to manufacture bi-layered small-caliber vascular scaffolds; these PLCL/SF/Hep scaffolds showed satisfactory vascular remodeling.
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Affiliation(s)
- Dawei Jin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People's Republic of China
| | - Junfeng Hu
- State Key Lab for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Dekai Xia
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People's Republic of China
| | - A'li Liu
- Imaging Diagnosis Center, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People's Republic of China
| | - Haizhu Kuang
- State Key Lab for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jun Du
- Imaging Diagnosis Center, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People's Republic of China
| | - Xiumei Mo
- State Key Lab for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Meng Yin
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People's Republic of China
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18
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Biocompatibility of Small-Diameter Vascular Grafts in Different Modes of RGD Modification. Polymers (Basel) 2019; 11:polym11010174. [PMID: 30960158 PMCID: PMC6401695 DOI: 10.3390/polym11010174] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/15/2019] [Accepted: 01/15/2019] [Indexed: 12/22/2022] Open
Abstract
Modification with Arg-Gly-Asp (RGD) peptides is a promising approach to improve biocompatibility of small-calibre vascular grafts but it is unknown how different RGD sequence composition impacts graft performance. Here we manufactured 1.5 mm poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/poly(ε-caprolactone) grafts modified by distinct linear or cyclic RGD peptides immobilized by short or long amine linker arms. Modified vascular prostheses were tested in vitro to assess their mechanical properties, hemocompatibility, thrombogenicity and endothelialisation. We also implanted these grafts into rat abdominal aortas with the following histological examination at 1 and 3 months to evaluate their primary patency, cellular composition and detect possible calcification. Our results demonstrated that all modes of RGD modification reduce ultimate tensile strength of the grafts. Modification of prostheses does not cause haemolysis upon the contact with modified grafts, yet all the RGD-treated grafts display a tendency to promote platelet aggregation in comparison with unmodified counterparts. In vivo findings identify that cyclic Arg-Gly-Asp-Phe-Lys peptide in combination with trioxa-1,13-tridecanediamine linker group substantially improve graft biocompatibility. To conclude, here we for the first time compared synthetic small-diameter vascular prostheses with different modes of RGD modification. We suggest our graft modification regimen as enhancing graft performance and thus recommend it for future use in tissue engineering.
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19
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Hytönen JP, Leppänen O, Taavitsainen J, Korpisalo P, Laidinen S, Alitalo K, Wadström J, Rissanen TT, Ylä-Herttuala S. Improved endothelialization of small-diameter ePTFE vascular grafts through growth factor therapy. VASCULAR BIOLOGY 2019; 1:1-9. [PMID: 32923945 PMCID: PMC7449264 DOI: 10.1530/vb-18-0001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 12/06/2018] [Indexed: 01/07/2023]
Abstract
Background Prosthetic vascular grafts in humans characteristically lack confluent endothelialization regardless of the duration of implantation. Use of high-porosity grafts has been proposed as a way to induce endothelialization through transgraft capillarization, although early experiments failed to show increased healing in man. Objectives We hypothesized that transduction of tissues around the prosthetic conduit with vectors encoding VEGF receptor-2 (VEGFR2) ligands would augment transinterstitial capillarization and induce luminal endothelialization of high-porosity ePTFE grafts. Methods Fifty-two NZW rabbits received 87 ePTFE uni- or bilateral end-to-end interposition grafts in carotid arteries. Rabbits were randomized to local therapy with adenoviruses encoding AdVEGF-A165, AdVEGF-A109 or control AdLacZ and analyzed at 6 and 28 days after surgery by contrast-enhanced ultrasound and histology. Results AdVEGF-A165 and AdVEGF-A109 dramatically increased perfusion in perigraft tissues at 6 days (14.2 ± 3.6 or 16.7 ± 2.6-fold increases, P < 0.05 and P < 0.01). At 28 days, the effect was no longer significantly higher than baseline. At 6 days, no luminal endothelialization was observed in any of the groups. At 28 days, AdVEGF-A109- and AdVEGF-A165-treated animals showed enhanced ingrowth of transinterstitial capillaries (66.0 ± 13.7% and 77.4 ± 15.7% of graft thickness vs 44.7 ± 24.4% in controls, P < 0.05) and improved luminal endothelialization (11.2 ± 26.3% and 11.4 ± 22.2%, AdVEGF-A109 and AdVEGF-A165 vs 0% in controls, P < 0.05). No increased stenosis was observed in the treatment groups as compared to LacZ controls. Conclusions This study suggests that transient local overexpression of VEGFR2 ligands in the peri-implant tissues at the time of graft implantation is a novel strategy to increase endothelialization of high-porosity ePTFE vascular grafts and improve the patency of small-diameter vascular prostheses.
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Affiliation(s)
- Jarkko P Hytönen
- A.I. Virtanen Institute of Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Olli Leppänen
- A.I. Virtanen Institute of Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Jouni Taavitsainen
- A.I. Virtanen Institute of Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Petra Korpisalo
- A.I. Virtanen Institute of Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Svetlana Laidinen
- A.I. Virtanen Institute of Molecular Medicine, University of Eastern Finland, Kuopio, Finland
| | - Kari Alitalo
- Molecular/Cancer Biology Laboratory, Biomedicum Helsinki, Helsinki, Finland
| | - Jonas Wadström
- Department of Transplantation Surgery, Karolinska Hospital Huddinge, Karolinska Institute, Stockholm, Sweden
| | | | - Seppo Ylä-Herttuala
- A.I. Virtanen Institute of Molecular Medicine, University of Eastern Finland, Kuopio, Finland.,Gene Therapy Unit, Kuopio University Hospital, Kuopio, Finland.,Heart Center, Kuopio University Hospital, Kuopio, Finland
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20
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Guruswamy Damodaran R, Vermette P. Tissue and organ decellularization in regenerative medicine. Biotechnol Prog 2018; 34:1494-1505. [PMID: 30294883 DOI: 10.1002/btpr.2699] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 04/30/2018] [Indexed: 12/22/2022]
Abstract
The advancement and improvement in decellularization methods can be attributed to the increasing demand for tissues and organs for transplantation. Decellularized tissues and organs, which are free of cells and genetic materials while retaining the complex ultrastructure of the extracellular matrix (ECM), can serve as scaffolds to subsequently embed cells for transplantation. They have the potential to mimic the native physiology of the targeted anatomic site. ECM from different tissues and organs harvested from various sources have been applied. Many techniques are currently involved in the decellularization process, which come along with their own advantages and disadvantages. This review focuses on recent developments in decellularization methods, the importance and nature of detergents used for decellularization, as well as on the role of the ECM either as merely a physical support or as a scaffold in retaining and providing cues for cell survival, differentiation and homeostasis. In addition, application, status, and perspectives on commercialization of bioproducts derived from decellularized tissues and organs are addressed. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1494-1505, 2018.
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Affiliation(s)
- Rajesh Guruswamy Damodaran
- Laboratoire de bio-ingénierie et de biophysique de l'Université de Sherbrooke, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boul. de l'Université, Sherbrooke, QC, J1K 2R1, Canada.,Pharmacology Institute of Sherbrooke, Faculté de médecine et des sciences de la santé, 3001 12ième Avenue Nord, Sherbrooke, Québec, J1H 5N4, Canada.,Research Centre on Aging, Institut universitaire de gériatrie de Sherbrooke, 1036 rue Belvédère Sud, Sherbrooke, Québec, J1H 4C4, Canada
| | - Patrick Vermette
- Laboratoire de bio-ingénierie et de biophysique de l'Université de Sherbrooke, Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boul. de l'Université, Sherbrooke, QC, J1K 2R1, Canada.,Pharmacology Institute of Sherbrooke, Faculté de médecine et des sciences de la santé, 3001 12ième Avenue Nord, Sherbrooke, Québec, J1H 5N4, Canada.,Research Centre on Aging, Institut universitaire de gériatrie de Sherbrooke, 1036 rue Belvédère Sud, Sherbrooke, Québec, J1H 4C4, Canada
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21
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Notoginsenoside Fc attenuates high glucose-induced vascular endothelial cell injury via upregulation of PPAR-γ in diabetic Sprague–Dawley rats. Vascul Pharmacol 2018; 109:27-35. [DOI: 10.1016/j.vph.2018.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 04/16/2018] [Accepted: 05/28/2018] [Indexed: 12/15/2022]
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22
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Radke D, Jia W, Sharma D, Fena K, Wang G, Goldman J, Zhao F. Tissue Engineering at the Blood-Contacting Surface: A Review of Challenges and Strategies in Vascular Graft Development. Adv Healthc Mater 2018; 7:e1701461. [PMID: 29732735 PMCID: PMC6105365 DOI: 10.1002/adhm.201701461] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/09/2018] [Indexed: 12/14/2022]
Abstract
Tissue engineered vascular grafts (TEVGs) are beginning to achieve clinical success and hold promise as a source of grafting material when donor grafts are unsuitable or unavailable. Significant technological advances have generated small-diameter TEVGs that are mechanically stable and promote functional remodeling by regenerating host cells. However, developing a biocompatible blood-contacting surface remains a major challenge. The TEVG luminal surface must avoid negative inflammatory responses and thrombogenesis immediately upon implantation and promote endothelialization. The surface has therefore become a primary focus for research and development efforts. The current state of TEVGs is herein reviewed with an emphasis on the blood-contacting surface. General vascular physiology and developmental challenges and strategies are briefly described, followed by an overview of the materials currently employed in TEVGs. The use of biodegradable materials and stem cells requires careful control of graft composition, degradation behavior, and cell recruitment ability to ensure that a physiologically relevant vessel structure is ultimately achieved. The establishment of a stable monolayer of endothelial cells and the quiescence of smooth muscle cells are critical to the maintenance of patency. Several strategies to modify blood-contacting surfaces to resist thrombosis and control cellular recruitment are reviewed, including coatings of biomimetic peptides and heparin.
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Affiliation(s)
- Daniel Radke
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Wenkai Jia
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Dhavan Sharma
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Kemin Fena
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Guifang Wang
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Jeremy Goldman
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
| | - Feng Zhao
- Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, U.S
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23
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Antonova LV, Sevostyanova VV, Kutikhin AG, Velikanova ЕA, Matveeva VG, Glushkova TV, Mironov AV, Krivkina EO, Barbarash OL, Barbarash LS. INFLUENCE OF bFGF, SDF-1α, OR VEGF INCORPORATED INTO TUBULAR POLYMER SCAFFOLDS ON THE FORMATION OF SMALL-DIAMETER TISSUE-ENGINEERED BLOOD VESSEL IN VIVO. RUSSIAN JOURNAL OF TRANSPLANTOLOGY AND ARTIFICIAL ORGANS 2018. [DOI: 10.15825/1995-1191-2018-1-96-109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Aim. To evaluate the potential synergistic effects of basic fi broblast growth factor (bFGF) and stromal cell-derived factor-1α (SDF-1α) complemented with VEGF compared to VEGF alone when being added into poly(3-hydroxybutyrateco-3-hydroxyvalerate) / poly(ε-caprolactone) vascular grafts implanted into rat abdominal aorta for 3, 6, or 12 months.Materials and methods. Utilizing emulsion electrospinning, we fabricated one-layer vascular grafts with either VEGF, bFGF, or SDF-1α, and two-layer vascular grafts with VEGF incorporated into the inner layer and bFGF and SDF-1α incorporated into the outer layer following structural evaluation, tensile testing, andin vivotesting using a rat abdominal aorta replacement model.Results. Grafts containing all three growth factors had a 100% primary patency rate. The combination of bFGF, SDF-1α and VEGF improved morphology and mechanical properties of the grafts. Furthermore, such combination of the bioactive factors promoted endothelialization compared to VEGF alone. In addition, bFGF induced a rapid formation of a SMC layer.Conclusion. Taking together, these fi ndings show that the incorporation of bFGF and SDF-1α into the vascular grafts in combination with VEGF enhances vascular tissue regeneration and provides a higher primary patency rate.
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Affiliation(s)
- L. V. Antonova
- Research Institute for Complex Issues of Cardiovascular Diseases
| | | | - A. G. Kutikhin
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - Е. A. Velikanova
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - V. G. Matveeva
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - T. V. Glushkova
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - A. V. Mironov
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - E. O. Krivkina
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - O. L. Barbarash
- Research Institute for Complex Issues of Cardiovascular Diseases
| | - L. S. Barbarash
- Research Institute for Complex Issues of Cardiovascular Diseases
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24
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Fang Z, Wang J, Zhu S, Yang X, Jia Y, Sun Q, Guan S. A DFT study of the adsorption of short peptides on Mg and Mg-based alloy surfaces. Phys Chem Chem Phys 2018; 20:3602-3607. [DOI: 10.1039/c7cp07431j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adsorption of short peptides, including three dipeptides: Arg–Gly, Gly–Asp, Arg–Asp, and one tripeptide RGD, on the surfaces of Mg and Mg alloys (Mg–Zn, Mg–Y, and Mg–Nd), was studied using first-principles calculations based on density functional theory (DFT), considering van der Waals (vdW) correction.
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Affiliation(s)
- Zhe Fang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Jianfeng Wang
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Shijie Zhu
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xiaofan Yang
- State Key Laboratory Complex Electromagnetic Environment Effects on Electronics and Information System (CEMEE)
- Luoyang 471003
- China
| | - Yu Jia
- Key Laboratory for Special Functional Materials of Ministry of Education & School of Physics and Electronic
- Henan University
- Kaifeng 475004
- China
- International Laboratory for Quantum Functional Materials of Henan & School of Physics and Engineering
| | - Qiang Sun
- International Laboratory for Quantum Functional Materials of Henan & School of Physics and Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Shaokang Guan
- School of Materials Science and Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
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25
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Thompson Z, Rahman S, Yarmolenko S, Sankar J, Kumar D, Bhattarai N. Fabrication and Characterization of Magnesium Ferrite-Based PCL/Aloe Vera Nanofibers. MATERIALS 2017; 10:ma10080937. [PMID: 28800071 PMCID: PMC5578303 DOI: 10.3390/ma10080937] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/01/2017] [Accepted: 08/07/2017] [Indexed: 12/31/2022]
Abstract
Composite nanofibers of biopolymers and inorganic materials have been widely explored as tissue engineering scaffolds because of their superior structural, mechanical and biological properties. In this study, magnesium ferrite (Mg-ferrite) based composite nanofibers were synthesized using an electrospinning technique. Mg-ferrite nanoparticles were first synthesized using the reverse micelle method, and then blended in a mixture of polycaprolactone (PCL), a synthetic polymer, and Aloe vera, a natural polymer, to create magnetic nanofibers by electrospinning. The morphology, structural and magnetic properties, and cellular compatibility of the magnetic nanofibers were analyzed. Mg-ferrite/PCL/Aloe vera nanofibers showed good uniformity in fiber morphology, retained their structural integrity, and displayed magnetic strength. Experimental results, using cell viability assay and scanning electron microscopy imaging showed that magnetic nanofibers supported 3T3 cell viability. We believe that the new composite nanofibrous membranes developed in this study have the ability to mimic the physical structure and function of tissue extracellular matrix, as well as provide the magnetic and soluble metal ion attributes in the scaffolds with enhanced cell attachment, and thus improve tissue regeneration.
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Affiliation(s)
- Zanshe Thompson
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, Greensboro, NC 27411, USA.
| | - Shekh Rahman
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, Greensboro, NC 27411, USA.
| | - Sergey Yarmolenko
- NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, Greensboro, NC 27411, USA.
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Jagannathan Sankar
- NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, Greensboro, NC 27411, USA.
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Dhananjay Kumar
- NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, Greensboro, NC 27411, USA.
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Narayan Bhattarai
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, Greensboro, NC 27411, USA.
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26
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Hypaphorine Attenuates Lipopolysaccharide-Induced Endothelial Inflammation via Regulation of TLR4 and PPAR-γ Dependent on PI3K/Akt/mTOR Signal Pathway. Int J Mol Sci 2017; 18:ijms18040844. [PMID: 28420166 PMCID: PMC5412428 DOI: 10.3390/ijms18040844] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 12/31/2022] Open
Abstract
Endothelial lesion response to injurious stimuli is a necessary step for initiating inflammatory cascades in blood vessels. Hypaphorine (Hy) from different marine sources is shown to exhibit anti-inflammatory properties. However, the potential roles and possible molecular mechanisms of Hy in endothelial inflammation have yet to be fully clarified. We showed that Hy significantly inhibited the positive effects of lipopolysaccharide (LPS) on pro-inflammatory cytokines expressions, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), monocyte chemoattractant protein 1 (MCP-1) and vascular cellular adhesion molecule-1 (VCAM-1), as well as induction of the phosphorylation of Akt and mTOR in HMEC-1 cells. The downregulated peroxisome proliferator-activated receptor γ (PPAR-γ) and upregulated toll-like receptor 4 (TLR4) expressions in LPS-challenged endothelial cells were prevented by Hy. Inhibition of both PI3K and mTOR reversed LPS-stimulated increases in TLR4 expressions and decreases in PPAR-γ levels. Genetic silencing of TLR4 or PPAR-γ agonist pioglitazone obviously abrogated the levels of pro-inflammatory cytokines in LPS-treated HMEC-1 cells. These results suggest that Hy may exert anti-inflammatory actions through the regulation of TLR4 and PPAR-γ dependent on PI3K/Akt/mTOR signal pathways. Hy may be considered as a therapeutic agent that can potentially relieve or ameliorate endothelial inflammation-associated diseases.
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