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Antunes M, Bonani W, Reis RL, Migliaresi C, Ferreira H, Motta A, Neves NM. Development of alginate-based hydrogels for blood vessel engineering. BIOMATERIALS ADVANCES 2022; 134:112588. [PMID: 35525739 DOI: 10.1016/j.msec.2021.112588] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/09/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022]
Abstract
Vascular diseases are among the primary causes of death worldwide. In serious conditions, replacement of the damaged vessel is required. Autologous grafts are preferred, but their limited availability and difficulty of the harvesting procedures favour synthetic alternatives' use. However, as synthetic grafts may present significant drawbacks, tissue engineering-based solutions are proposed. Herein, tubular hydrogels of alginate combined with collagen type I and/or silk fibroin were prepared by ionotropic gelation using gelatin hydrogel sacrificial moulds loaded with calcium ions (Ca2+). The time of exposure of alginate solutions to Ca2+-loaded gelatin was used to control the wall thickness of the hydrogels (0.47 ± 0.10 mm-1.41 ± 0.21 mm). A second crosslinking step with barium chloride prevented their degradation for a 14 day period and improved mechanical properties by two-fold. Protein leaching tests showed that collagen type I, unlike silk fibroin, was strongly incorporated in the hydrogels. The presence of silk fibroin in the alginate matrix, containing or not collagen, did not significantly improve hydrogels' properties. Conversely, hydrogels enriched only with collagen were able to better support EA.hy926 and MRC-5 cells' growth and characteristic phenotype. These results suggest that a two-step crosslinking procedure combined with the use of collagen type I allow for producing freestanding vascular substitutes with tuneable properties in terms of size, shape and wall thickness.
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Affiliation(s)
- Margarida Antunes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Walter Bonani
- Department of Industrial Engineering, University of Trento, via Sommarive, 9, 38123 Trento, Italy; BIOtech Research Centre, University of Trento, via delle Regole 101, 38123 Mattarello, Trento, Italy
| | - Rui L Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Claudio Migliaresi
- Department of Industrial Engineering, University of Trento, via Sommarive, 9, 38123 Trento, Italy; BIOtech Research Centre, University of Trento, via delle Regole 101, 38123 Mattarello, Trento, Italy
| | - Helena Ferreira
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Antonella Motta
- Department of Industrial Engineering, University of Trento, via Sommarive, 9, 38123 Trento, Italy; BIOtech Research Centre, University of Trento, via delle Regole 101, 38123 Mattarello, Trento, Italy
| | - Nuno M Neves
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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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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Estermann M, Spiaggia G, Septiadi D, Dijkhoff IM, Drasler B, Petri-Fink A, Rothen-Rutishauser B. Design of Perfused PTFE Vessel-Like Constructs for In Vitro Applications. Macromol Biosci 2021; 21:e2100016. [PMID: 33624920 DOI: 10.1002/mabi.202100016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Indexed: 12/18/2022]
Abstract
Tissue models mimic the complex 3D structure of human tissues, which allows the study of pathologies and the development of new therapeutic strategies. The introduction of perfusion overcomes the diffusion limitation and enables the formation of larger tissue constructs. Furthermore, it provides the possibility to investigate the effects of hematogenously administered medications. In this study, the applicability of hydrophilic polytetrafluoroethylene (PTFE) membranes as vessel-like constructs for further use in perfused tissue models is evaluated. The presented approach allows the formation of stable and leakproof tubes with a mean diameter of 654.7 µm and a wall thickness of 84.2 µm. A polydimethylsiloxane (PDMS) chip acts as a perfusion bioreactor and provides sterile conditions. As proof of concept, endothelial cells adhere to the tube's wall, express vascular endothelial cadherin (VE-cadherin) between neighboring cells, and resist perfusion at a shear rate of 0.036 N m-2 for 48 h. Furthermore, the endothelial cell layer delays significantly the diffusion of fluorescently labeled molecules into the surrounding collagen matrix and leads to a twofold reduced diffusion velocity. This approach represents a cost-effective alternative to introduce stable vessel-like constructs into tissue models, which allows adapting the surrounding matrix to the tissue properties in vivo.
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Affiliation(s)
- Manuela Estermann
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Giovanni Spiaggia
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Dedy Septiadi
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Irini Magdelina Dijkhoff
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Barbara Drasler
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, 1700, Switzerland.,Department of Chemistry, University of Fribourg, Chemin du Museé 9, Fribourg, 1700, Switzerland
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Kimicata M, Allbritton-King JD, Navarro J, Santoro M, Inoue T, Hibino N, Fisher JP. Assessment of decellularized pericardial extracellular matrix and poly(propylene fumarate) biohybrid for small-diameter vascular graft applications. Acta Biomater 2020; 110:68-81. [PMID: 32305447 PMCID: PMC7294167 DOI: 10.1016/j.actbio.2020.04.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 04/02/2020] [Accepted: 04/06/2020] [Indexed: 01/05/2023]
Abstract
Autologous grafts are the current gold standard of care for coronary artery bypass graft surgeries, but are limited by availability and plagued by high failure rates. Similarly, tissue engineering approaches to small diameter vascular grafts using naturally derived and synthetic materials fall short, largely due to inappropriate mechanical properties. Alternatively, decellularized extracellular matrix from tissue is biocompatible and has comparable strength to vessels, while poly(propylene fumarate) (PPF) has shown promising results for vascular grafts. This study investigates the integration of decellularized pericardial extracellular matrix (dECM) and PPF to create a biohybrid scaffold (dECM+PPF) suitable for use as a small diameter vascular graft. Our method to decellularize the ECM was efficient at removing DNA content and donor variability, while preserving protein composition. PPF was characterized and added to dECM, where it acted to preserve dECM against degradative effects of collagenase without disturbing the material's overall mechanics. A transport study showed that diffusion occurs across dECM+PPF without any effect from collagenase. The modulus of dECM+PPF matched that of human coronary arteries and saphenous veins. dECM+PPF demonstrated ample circumferential stress, burst pressure, and suture retention strength to survive in vivo. An in vivo study showed re-endothelialization and tissue growth. Overall, the dECM+PPF biohybrid presents a robust solution to overcome the limitations of the current methods of treatment for small diameter vascular grafts. STATEMENT OF SIGNIFICANCE: In creating a dECM+PPF biohybrid graft, we have observed phenomena that will have a lasting impact within the scientific community. First, we found that we can reduce donor variability through decellularization, a unique use of the decellularization process. Additionally, we coupled a natural material with a synthetic polymer to capitalize on the benefits of each: the cues provided to cells and the ability to easily tune material properties, respectively. This principle can be applied to other materials in a variety of applications. Finally, we created an off-the-shelf alternative to autologous grafts with a newly developed material that has yet to be utilized in any scaffolds. Furthermore, bovine pericardium has not been investigated as a small diameter vascular graft.
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Affiliation(s)
- Megan Kimicata
- Department of Materials Science and Engineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Jules D Allbritton-King
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Javier Navarro
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Marco Santoro
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Takahiro Inoue
- Department of Surgery, Division of Cardiac Surgery, Johns Hopkins University, 1800 Orleans St, Baltimore, MD, 21287; Department of Surgery, Section of Cardiac Surgery, The University of Chicago, 5841 S. Maryland Ave, Chicago, IL 60637, United States
| | - Narutoshi Hibino
- Department of Surgery, Division of Cardiac Surgery, Johns Hopkins University, 1800 Orleans St, Baltimore, MD, 21287; Department of Surgery, Section of Cardiac Surgery, The University of Chicago, 5841 S. Maryland Ave, Chicago, IL 60637, United States
| | - John P Fisher
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States.
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Akentieva TN, Ovcharenko EA, Kudryavtseva YA. [Influence of suture material on the development of postoperative complications in vascular surgery and their prevention]. Khirurgiia (Mosk) 2019:75-81. [PMID: 31626243 DOI: 10.17116/hirurgia201910175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Postoperative complications in vascular surgery may be partly provoked by suture material. Analysis of the mechanisms of these complications may be useful for their prevention. Mechanisms of suture-induced thrombosis and neointimal hyperplasia, possible strategies for prevention of postoperative complications including those allowing drug deliveries directly to the vascular anastomosis area are discussed in the article. According to the literature data, heparin is the most optimal drug for modifying suture material and prevention of thrombosis and neointimal hyperplasia. Heparin delivery to the vascular anastomosis site will reduce the risk of thrombosis by inhibiting the activity of thrombin. Complex of heparin and antithrombin III increases inhibitory effect of antithrombin against thrombin. In addition, heparin is able to reduce proliferation of vascular smooth muscle cells through inhibition of the synthesis of extracellular matrix proteases involved in migration and proliferation of cells. Thus, heparin delivery to the vascular injury site may be used to prevent thrombosis and myoproliferative response. Moreover, this strategy prevents complications associated with systemic administration of anticoagulants.
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Affiliation(s)
- T N Akentieva
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - E A Ovcharenko
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
| | - Yu A Kudryavtseva
- Research Institute for Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
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Sallustio F, Gesualdo L, Pisignano D. The Heterogeneity of Renal Stem Cells and Their Interaction with Bio- and Nano-materials. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1123:195-216. [PMID: 31016602 DOI: 10.1007/978-3-030-11096-3_12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
For a long time, the kidney has been considered incapable of regeneration. Instead, in recent years, studies have supported the existence of heterogeneity of renal stem/progenitor cells with the ability to regenerate both glomerular and tubular epithelial cells. Indeed, several studies evidence that renal progenitor cells, releasing chemokines, growth factors, microvesicles, and transcription factors through paracrine mechanisms, can induce tissue regeneration and block pathological processes of the kidney. In this chapter the potentiality of the kidney regenerative processes is considered and reviewed, and the main classes of stem/progenitor cells that might contribute to the renal tissue renewal is analyzed. Moreover, we evaluate the role of biomaterials in the regulation of cellular functions, specifically addressing renal stem/progenitor cells. Materials can be synthesized and tailored in order to recreate a finely structured microenvironment (by nanostructures, nanofibers, bioactive compounds, etc.) with which the cells can interact actively. For instance, by patterning substrates in regions that alternately promote or prevent protein adsorption, cell adhesion and spreading processes can be controlled in space. We illustrate the potentiality of nanotechnologies and engineered biomaterials in affecting and enhancing the behavior of renal stem/progenitor cells. Although there are still many challenges for the translation of novel therapeutics, advances in biomaterials and nanomedicine have the potential to drastically change the clinical and therapeutic landscape, even in combination with stem cell biology.
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Affiliation(s)
- Fabio Sallustio
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Bari, Italy. .,Department of Emergency and Organ Transplantation, University of Bari "Aldo Moro", Bari, Italy.
| | - Loreto Gesualdo
- Department of Emergency and Organ Transplantation, University of Bari "Aldo Moro", Bari, Italy
| | - Dario Pisignano
- Dipartimento di Fisica 'E. Fermi', University of Pisa, Pisa, Italy.,NEST CNR-Istituto Nanoscienze Piazza S. Silvestro 12, Pisa, Italy
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Qi YX, Han Y, Jiang ZL. Mechanobiology and Vascular Remodeling: From Membrane to Nucleus. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1097:69-82. [PMID: 30315540 DOI: 10.1007/978-3-319-96445-4_4] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Vascular endothelial cells (ECs) and smooth muscle cells (VSMCs) are constantly exposed to hemodynamic forces in vivo, including flow shear stress and cyclic stretch caused by the blood flow. Numerous researches revealed that during various cardiovascular diseases such as atherosclerosis, hypertension, and vein graft, abnormal (pathological) mechanical forces play crucial roles in the dysfunction of ECs and VSMCs, which is the fundamental process during both vascular homeostasis and remodeling. Hemodynamic forces trigger several membrane molecules and structures, such as integrin, ion channel, primary cilia, etc., and induce the cascade reaction processes through complicated cellular signaling networks. Recent researches suggest that nuclear envelope proteins act as the functional homology of molecules on the membrane, are important mechanosensitive molecules which modulate chromatin location and gene transcription, and subsequently regulate cellular functions. However, the studies on the roles of nucleus in the mechanotransduction process are still at the beginning. Here, based on the recent researches, we focused on the nuclear envelope proteins and discussed the roles of pathological hemodynamic forces in vascular remodeling. It may provide new insight into understanding the molecular mechanism of vascular physiological homeostasis and pathophysiological remodeling and may help to develop hemodynamic-based strategies for the prevention and management of vascular diseases.
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Affiliation(s)
- Ying-Xin Qi
- Institute of Mechanobiology and Medical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| | - Yue Han
- Institute of Mechanobiology and Medical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zong-Lai Jiang
- Institute of Mechanobiology and Medical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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Yuan H, Qin J, Xie J, Li B, Yu Z, Peng Z, Yi B, Lou X, Lu X, Zhang Y. Highly aligned core-shell structured nanofibers for promoting phenotypic expression of vSMCs for vascular regeneration. NANOSCALE 2016; 8:16307-16322. [PMID: 27714091 DOI: 10.1039/c6nr05075a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study was designed to assess the efficacy of hyaluronan (HA) functionalized well-aligned nanofibers of poly-l-lactic acid (PLLA) in modulating the phenotypic expression of vascular smooth muscle cells (vSMCs) for blood vessel regeneration. Highly aligned HA/PLLA nanofibers in core-shell structure were prepared using a novel stable jet electrospinning approach. Formation of a thin HA-coating layer atop each PLLA nanofiber surface endowed the uni-directionally oriented fibrous mats with increased anisotropic wettability and mechanical compliance. The HA/PLLA nanofibers significantly promoted vSMC to elongation, orientation, and proliferation, and also up-regulated the expression of contractile genes/proteins (e.g., α-SMA, SM-MHC) as well as the synthesis of elastin. Six weeks of in vivo scaffold replacement of rabbit carotid arteries showed that vascular conduits made of circumferentially aligned HA/PLLA nanofibers could maintain patency and promoted oriented vSMC regeneration, lumen endothelialization, and capillary formation. This study demonstrated the synergistic effects of nanotopographical and biochemical cues in one biomimetic scaffold design for efficacious vascular regeneration.
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Affiliation(s)
- Huihua Yuan
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Jinbao Qin
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai 200011, China.
| | - Jing Xie
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Biyun Li
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Zhepao Yu
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Zhiyou Peng
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai 200011, China.
| | - Bingcheng Yi
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Xiangxin Lou
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China.
| | - Xinwu Lu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai 200011, China.
| | - Yanzhong Zhang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China. and China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China
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The use of polymer-based nanoparticles and nanostructured materials in treatment and diagnosis of cardiovascular diseases: Recent advances and emerging designs. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2016.01.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Lamichhane S, Anderson JA, Remund T, Sun H, Larson MK, Kelly P, Mani G. Responses of endothelial cells, smooth muscle cells, and platelets dependent on the surface topography of polytetrafluoroethylene. J Biomed Mater Res A 2016; 104:2291-304. [PMID: 27119260 DOI: 10.1002/jbm.a.35763] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 04/19/2016] [Accepted: 04/25/2016] [Indexed: 11/09/2022]
Abstract
In this study, the effect of different structures (flat, expanded, and electrospun) of polytetrafluoroethylene (PTFE) on the interactions of endothelial cells (ECs), smooth muscle cells (SMCs), and platelets was investigated. In addition, the mechanisms that govern the interactions between ECs, SMCs, and platelets with different structures of PTFE were discussed. The surface characterizations showed that the different structures of PTFE have the same surface chemistry, similar surface wettability and zeta potential, but uniquely different surface topography. The viability, proliferation, morphology, and phenotype of ECs and SMCs interacted with different structures of PTFE were investigated. Expanded PTFE (ePTFE) provided a relatively better surface for the growth of ECs. In case of SMC interactions, although all the different structures of PTFE inhibited SMC growth, a maximum inhibitory effect was observed for ePTFE. In case of platelet interactions, the electrospun PTFE provided a better surface for preventing the adhesion and activation of platelets. Thus, this study demonstrated that the responses of ECs, SMCs, and platelets strongly dependent on the surface topography of the PTFE. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2291-2304, 2016.
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Affiliation(s)
- Sujan Lamichhane
- Biomedical Engineering Program, The University of South Dakota, 4800 N. Career Avenue, Sioux Falls, South Dakota, 57107
| | - Jordan A Anderson
- Biomedical Engineering Program, The University of South Dakota, 4800 N. Career Avenue, Sioux Falls, South Dakota, 57107
| | - Tyler Remund
- Sanford Research, 2301 East 60th Street North, Sioux Falls, South Dakota, 57104
| | - Hongli Sun
- Biomedical Engineering Program, The University of South Dakota, 4800 N. Career Avenue, Sioux Falls, South Dakota, 57107
| | - Mark K Larson
- Department of Biology, Augustana University, 2001 S. Summit Avenue, Sioux Falls, South Dakota, 57197
| | - Patrick Kelly
- Sanford Health, 1305 West 18th Street, Sioux Falls, South Dakota, 57105
| | - Gopinath Mani
- Biomedical Engineering Program, The University of South Dakota, 4800 N. Career Avenue, Sioux Falls, South Dakota, 57107
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Zhu M, Wang Z, Zhang J, Wang L, Yang X, Chen J, Fan G, Ji S, Xing C, Wang K, Zhao Q, Zhu Y, Kong D, Wang L. Circumferentially aligned fibers guided functional neoartery regeneration in vivo. Biomaterials 2015; 61:85-94. [PMID: 26001073 DOI: 10.1016/j.biomaterials.2015.05.024] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 05/02/2015] [Accepted: 05/14/2015] [Indexed: 11/30/2022]
Abstract
An ideal vascular graft should have the ability to guide the regeneration of neovessels with structure and function similar to those of the native blood vessels. Regeneration of vascular smooth muscle cells (VSMCs) with circumferential orientation within the grafts is crucial for functional vascular reconstruction in vivo. To date, designing and fabricating a vascular graft with well-defined geometric cues to facilitate simultaneously VSMCs infiltration and their circumferential alignment remains a great challenge and scarcely reported in vivo. Thus, we have designed a bi-layered vascular graft, of which the internal layer is composed of circumferentially aligned microfibers prepared by wet-spinning and an external layer composed of random nanofibers prepared by electrospinning. While the internal circumferentially aligned microfibers provide topographic guidance for in vivo regeneration of circumferentially aligned VSMCs, the external random nanofibers can offer enhanced mechanical property and prevent bleeding during and after graft implantation. VSMCs infiltration and alignment within the scaffold was then evaluated in vitro and in vivo. Our results demonstrated that the circumferentially oriented VSMCs and longitudinally aligned ECs were successfully regenerated in vivo after the bi-layered vascular grafts were implanted in rat abdominal aorta. No formation of thrombosis or intimal hyperplasia was observed up to 3 month post implantation. Further, the regenerated neoartery exhibited contraction and relaxation property in response to vasoactive agents. This new strategy may bring cell-free small diameter vascular grafts closer to clinical application.
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Affiliation(s)
- Meifeng Zhu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Zhihong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Jiamin Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Lina Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Xiaohu Yang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingrui Chen
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guanwei Fan
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Cheng Xing
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Kai Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China; State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Yan Zhu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China.
| | - Lianyong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China.
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12
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Wan XJ, Zhao HC, Zhang P, Huo B, Shen BR, Yan ZQ, Qi YX, Jiang ZL. Involvement of BK channel in differentiation of vascular smooth muscle cells induced by mechanical stretch. Int J Biochem Cell Biol 2015; 59:21-9. [DOI: 10.1016/j.biocel.2014.11.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 11/13/2014] [Accepted: 11/25/2014] [Indexed: 12/26/2022]
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Liu R, Chen X, Gellman SH, Masters KS. Nylon-3 polymers that enable selective culture of endothelial cells. J Am Chem Soc 2014; 135:16296-9. [PMID: 24156536 DOI: 10.1021/ja408634a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Substrates that selectively encourage the growth of specific cell types are valuable for the engineering of complex tissues. Some cell-selective peptides have been identified from extracellular matrix proteins; these peptides have proven useful for biomaterials-based approaches to tissue repair or regeneration. However, there are very few examples of synthetic materials that display selectivity in supporting cell growth. We describe nylon-3 polymers that support in vitro culture of endothelial cells but do not support the culture of smooth muscle cells or fibroblasts. These materials may be promising for vascular biomaterials applications.
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Wang W, Guo L, Yu Y, Chen Z, Zhou R, Yuan Z. Peptide REDV-modified polysaccharide hydrogel with endothelial cell selectivity for the promotion of angiogenesis. J Biomed Mater Res A 2014; 103:1703-12. [PMID: 25103847 DOI: 10.1002/jbm.a.35306] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 07/28/2014] [Indexed: 11/06/2022]
Abstract
Rapid and controlled vascularization of engineered tissues remains one of the key limitations in thick tissue engineering. Although many studies have focused on improving the rapid vascularization through the immobilization of bioactive molecules, the competition in growth between endothelial cells (ECs) and other cell types is to some extent neglected. In this study, we developed a peptide GREDV-modified scaffold for selective adhesion of human umbilical vein endothelial cells (HUVECs) through the specific recognition of the REDV peptide and integrin α4 β1 . In vitro studies showed that GREDV-conjugated alginate (ALG-GREDV) improved HUVEC adhesion, migration and proliferation when compared with a non-modified group. Furthermore, ALG-GREDV exhibited a superior capability for promoting the proliferation and selective adhesion of HUVEC over that of other peptide (RGD and YIGSR) modified groups (ALG-Pep). In vivo angiogenic assays demonstrated that the ALG-GREDV scaffold induced an angiogenic potential by stimulating new vessel formation and showed the highest blood vessel density among all samples after 21 days of implanting (83.7 vessels/mm(2) ). More importantly, the blood vessel density in cambium fibrous tissue of ALG-GREDV was about 1.5 times greater than other ALG-Pep groups, indicating facilitation of ALG-GREDV on selective angiogenesis in vivo. These results demonstrated that REDV-conjugated alginate could be a useful scaffold for stimulating and inducing angiogenesis in tissue-engineered applications.
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Affiliation(s)
- Wei Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
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Babczyk P, Conzendorf C, Klose J, Schulze M, Harre K, Tobiasch E. Stem Cells on Biomaterials for Synthetic Grafts to Promote Vascular Healing. J Clin Med 2014; 3:39-87. [PMID: 26237251 PMCID: PMC4449663 DOI: 10.3390/jcm3010039] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 10/28/2013] [Accepted: 11/16/2013] [Indexed: 12/25/2022] Open
Abstract
This review is divided into two interconnected parts, namely a biological and a chemical one. The focus of the first part is on the biological background for constructing tissue-engineered vascular grafts to promote vascular healing. Various cell types, such as embryonic, mesenchymal and induced pluripotent stem cells, progenitor cells and endothelial- and smooth muscle cells will be discussed with respect to their specific markers. The in vitro and in vivo models and their potential to treat vascular diseases are also introduced. The chemical part focuses on strategies using either artificial or natural polymers for scaffold fabrication, including decellularized cardiovascular tissue. An overview will be given on scaffold fabrication including conventional methods and nanotechnologies. Special attention is given to 3D network formation via different chemical and physical cross-linking methods. In particular, electron beam treatment is introduced as a method to combine 3D network formation and surface modification. The review includes recently published scientific data and patents which have been registered within the last decade.
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Affiliation(s)
- Patrick Babczyk
- Department of Natural Science, Bonn-Rhein-Sieg University of Applied Science, Von-Liebig-Street 20, Rheinbach 53359, Germany.
| | - Clelia Conzendorf
- Faculty of Mechanical Engineering/Process Engineering, University of Applied Science Dresden, Friedrich-List-Platz 1, Dresden 01069, Germany.
| | - Jens Klose
- Faculty of Mechanical Engineering/Process Engineering, University of Applied Science Dresden, Friedrich-List-Platz 1, Dresden 01069, Germany.
| | - Margit Schulze
- Department of Natural Science, Bonn-Rhein-Sieg University of Applied Science, Von-Liebig-Street 20, Rheinbach 53359, Germany.
| | - Kathrin Harre
- Faculty of Mechanical Engineering/Process Engineering, University of Applied Science Dresden, Friedrich-List-Platz 1, Dresden 01069, Germany.
| | - Edda Tobiasch
- Department of Natural Science, Bonn-Rhein-Sieg University of Applied Science, Von-Liebig-Street 20, Rheinbach 53359, Germany.
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Eghtesad S, Nurminskaya MV. Binding of pro-migratory serum factors to electrospun PLLA nano-fibers. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:2006-17. [PMID: 23905695 DOI: 10.1080/09205063.2013.818915] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Architecture of the poly(l-lactic acid) (PLLA) scaffolds is known to affect protein affinity and binding strength. Here, we demonstrate that nanofibrous electrospun PLLA scaffolds reversibly absorb the pro-migratory serum factors that stimulate migration of vascular smooth muscle via an NFkB-dependent mechanism. Further, we demonstrate that mesenchymal stem cells seeded on the PLLA scaffolds do not enhance muscle migration but may maintain the ability of induced cells to migrate in an NFkB-independent manner. These findings further support the promising application of PLLA scaffolds for therapeutic angiogenesis and vascular graft engineering.
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Affiliation(s)
- Saman Eghtesad
- a Department of Biochemistry and Molecular Biology , University of Maryland School of Medicine , 108 N Greene St, BRF 329, Baltimore , MD , 21201 , USA
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Adhesion, growth, and maturation of vascular smooth muscle cells on low-density polyethylene grafted with bioactive substances. BIOMED RESEARCH INTERNATIONAL 2013; 2013:371430. [PMID: 23586032 PMCID: PMC3622364 DOI: 10.1155/2013/371430] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 02/14/2013] [Indexed: 11/18/2022]
Abstract
The attractiveness of synthetic polymers for cell colonization can be affected by physical, chemical, and biological modification of the polymer surface. In this study, low-density polyethylene (LDPE) was treated by an Ar(+) plasma discharge and then grafted with biologically active substances, namely, glycine (Gly), polyethylene glycol (PEG), bovine serum albumin (BSA), colloidal carbon particles (C), or BSA+C. All modifications increased the oxygen content, the wettability, and the surface free energy of the materials compared to the pristine LDPE, but these changes were most pronounced in LDPE with Gly or PEG, where all the three values were higher than in the only plasma-treated samples. When seeded with vascular smooth muscle cells (VSMCs), the Gly- or PEG-grafted samples increased mainly the spreading and concentration of focal adhesion proteins talin and vinculin in these cells. LDPE grafted with BSA or BSA+C showed a similar oxygen content and similar wettability, as the samples only treated with plasma, but the nano- and submicron-scale irregularities on their surface were more pronounced and of a different shape. These samples promoted predominantly the growth, the formation of a confluent layer, and phenotypic maturation of VSMC, demonstrated by higher concentrations of contractile proteins alpha-actin and SM1 and SM2 myosins. Thus, the behavior of VSMC on LDPE can be regulated by the type of bioactive substances that are grafted.
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Trends in tissue engineering for blood vessels. J Biomed Biotechnol 2012; 2012:956345. [PMID: 23251085 PMCID: PMC3518873 DOI: 10.1155/2012/956345] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 09/25/2012] [Indexed: 11/18/2022] Open
Abstract
Over the years, cardiovascular diseases continue to increase and affect not only human health but also the economic stability worldwide. The advancement in tissue engineering is contributing a lot in dealing with this immediate need of alleviating human health. Blood vessel diseases are considered as major cardiovascular health problems. Although blood vessel transplantation is the most convenient treatment, it has been delimited due to scarcity of donors and the patient's conditions. However, tissue-engineered blood vessels are promising alternatives as mode of treatment for blood vessel defects. The purpose of this paper is to show the importance of the advancement on biofabrication technology for treatment of soft tissue defects particularly for vascular tissues. This will also provide an overview and update on the current status of tissue reconstruction especially from autologous stem cells, scaffolds, and scaffold-free cellular transplantable constructs. The discussion of this paper will be focused on the historical view of cardiovascular tissue engineering and stem cell biology. The representative studies featured in this paper are limited within the last decade in order to trace the trend and evolution of techniques for blood vessel tissue engineering.
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Microcapillary-like structures prompted by phospholipase A2 activation in endothelial cells and pericytes co-cultures on a polyhydroxymethylsiloxane thin film. Biochimie 2012; 94:1860-70. [PMID: 22575274 DOI: 10.1016/j.biochi.2012.04.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 04/24/2012] [Indexed: 01/04/2023]
Abstract
A thin film of poly(hydroxymethylsiloxane) (PHMS) has been deposited on glass dishes and tested as artificial support material for vascularization from mixed cultures of endothelial cells (EC) and pericytes (PC). The EC/PC co-cultures adhered massively on PHMS, with the formation of net-like microcapillary structures. Such evidence was not found on control glass substrates in the same co-culture conditions neither on PHMS for EC and PC in monocultures. The physicochemical characterization of PHMS and control glass surface by time-of-flight secondary ion mass spectrometry, X-ray photoelectron spectroscopy, water contact angle and atomic force microscopy, pointed to the main role of the polymer hydrophobilicy to explain the observed cellular behavior. Moreover, enhanced intercellular cross-talk was evidenced by the up-regulation and activation of cytoplasmic and Ca(2+)-independent phospholipase A(2) (cPLA(2) and iPLA(2)) expression and cPLA(2) phosphorylation, leading to the cell proliferation and microcapillary formation on the PHMS surface, as evidenced by confocal microscopy analyses. Co-cultures, established with growth-arrested PCs by treatment with mitomycin C, showed an increase in EC proliferation on PHMS. AACOCF(3) or co-transfection with cPLA(2) and iPLA(2)siRNA reduced cell proliferation. The results highlight the major role played by EC/PC cross-talk as well as the hydrophobic character of the substrate surface, to promote microcapillary formation. Our findings suggest an attractive strategy for vascular tissue engineering and provide new details on the interplay of artificial substrates and capillary formation.
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Bacakova L, Filova E, Parizek M, Ruml T, Svorcik V. Modulation of cell adhesion, proliferation and differentiation on materials designed for body implants. Biotechnol Adv 2011; 29:739-67. [PMID: 21821113 DOI: 10.1016/j.biotechadv.2011.06.004] [Citation(s) in RCA: 561] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 05/30/2011] [Accepted: 06/09/2011] [Indexed: 12/12/2022]
Affiliation(s)
- Lucie Bacakova
- Department of Growth and Differentiation of Cell Populations, Institute of Physiology, Academy of Sciences of the Czech Republic, Videnska 1082, 14220 Prague 4-Krc, Czech Republic.
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