1
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Senobari F, Abolmaali SS, Farahavr G, Tamaddon AM. Targeting inflammation with hyaluronic acid-based micro- and nanotechnology: A disease-oriented review. Int J Biol Macromol 2024; 280:135923. [PMID: 39322155 DOI: 10.1016/j.ijbiomac.2024.135923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 08/29/2024] [Accepted: 09/20/2024] [Indexed: 09/27/2024]
Abstract
Inflammation is a pivotal immune response in numerous diseases and presents therapeutic challenges. Traditional anti-inflammatory drugs and emerging cytokine inhibitors encounter obstacles such as limited bioavailability, poor tissue distribution, and adverse effects. Hyaluronic acid (HA), a versatile biopolymer, is widely employed to deliver therapeutic agents, including anti-inflammatory drugs, genes, and cell therapies owing to its unique properties, such as hydrophilicity, biodegradability, and safety. HA interacts with cell receptors to initiate processes such as angiogenesis, cell proliferation, and immune regulation. HA-based drug delivery systems offer dual strategies for effective inflammation management, capitalizing on passive and active mechanisms. This synergy permits the mitigation of inflammation by lowering the doses of anti-inflammatory drugs and their off-target adverse effects. A diverse array of micro- and nanotechnology techniques enable the fabrication of tailored HA-engineered systems, including hydrogels, microgels, nanogels, microneedles, nanofibers, and 3D-printed scaffolds, for diverse formulations and administration routes. This review explores recent insights into HA pharmacology in inflammatory conditions, material design, and fabrication methods, as well as its applications across a spectrum of inflammatory diseases, such as atherosclerosis, psoriasis, dermatitis, wound healing, rheumatoid arthritis, osteoarthritis, inflammatory bowel disease, and colitis, highlighting its potential for clinical translation.
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Affiliation(s)
- Fatemeh Senobari
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, Iran
| | - Samira Sadat Abolmaali
- Associate Professor, Pharmaceutical Nanotechnology Department and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, Iran
| | - Ghazal Farahavr
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, Iran
| | - Ali Mohammad Tamaddon
- Professor, Pharmaceutics and Pharmaceutical Nanotechnology Department and Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz 71345, Iran.
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2
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Hosty L, Heatherington T, Quondamatteo F, Browne S. Extracellular matrix-inspired biomaterials for wound healing. Mol Biol Rep 2024; 51:830. [PMID: 39037470 PMCID: PMC11263448 DOI: 10.1007/s11033-024-09750-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/21/2024] [Indexed: 07/23/2024]
Abstract
Diabetic foot ulcers (DFU) are a debilitating and life-threatening complication of Diabetes Mellitus. Ulceration develops from a combination of associated diabetic complications, including neuropathy, circulatory dysfunction, and repetitive trauma, and they affect approximately 19-34% of patients as a result. The severity and chronic nature of diabetic foot ulcers stems from the disruption to normal wound healing, as a result of the molecular mechanisms which underly diabetic pathophysiology. The current standard-of-care is clinically insufficient to promote healing for many DFU patients, resulting in a high frequency of recurrence and limb amputations. Biomaterial dressings, and in particular those derived from the extracellular matrix (ECM), have emerged as a promising approach for the treatment of DFU. By providing a template for cell infiltration and skin regeneration, ECM-derived biomaterials offer great hope as a treatment for DFU. A range of approaches exist for the development of ECM-derived biomaterials, including the use of purified ECM components, decellularisation and processing of donor/ animal tissues, or the use of in vitro-deposited ECM. This review discusses the development and assessment of ECM-derived biomaterials for the treatment of chronic wounds, as well as the mechanisms of action through which ECM-derived biomaterials stimulate wound healing.
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Affiliation(s)
- Louise Hosty
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland
| | - Thomas Heatherington
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland
| | - Fabio Quondamatteo
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland.
| | - Shane Browne
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland.
- CÙRAM, Centre for Research in Medical Devices, University of Galway, Galway, H91 W2TY, Ireland.
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland.
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3
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Braccini S, Chen CB, Łucejko JJ, Barsotti F, Ferrario C, Chen GQ, Puppi D. Additive manufacturing of wet-spun chitosan/hyaluronic acid scaffolds for biomedical applications. Carbohydr Polym 2024; 329:121788. [PMID: 38286555 DOI: 10.1016/j.carbpol.2024.121788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/26/2023] [Accepted: 01/04/2024] [Indexed: 01/31/2024]
Abstract
Additive manufacturing (AM) holds great potential for processing natural polymer hydrogels into 3D scaffolds exploitable for tissue engineering and in vitro tissue modelling. The aim of this research activity was to assess the suitability of computer-aided wet-spinning (CAWS) for AM of hyaluronic acid (HA)/chitosan (Cs) polyelectrolyte complex (PEC) hydrogels. A post-printing treatment based on HA chemical cross-linking via transesterification with poly(methyl vinyl ether-alt-maleic acid) (PMVEMA) was investigated to enhance the structural stability of the developed scaffolds in physiological conditions. PEC formation and the esterification reaction were investigated by infrared spectroscopy, thermogravimetric analysis, evolved gas analysis-mass spectrometry, and differential scanning calorimetry measurements. In addition, variation of PMVEMA concentration in the cross-linking medium was demonstrated to strongly influence scaffold water uptake and its stability in phosphate buffer saline at 37 °C. The in vitro cytocompatibility of the developed hydrogels was demonstrated by employing the murine embryo fibroblast Balb/3T3 clone A31 cell line, highlighting that PMVEMA cross-linking improved scaffold cell colonization. The results achieved demonstrated that the developed hydrogels represent suitable 3D scaffolds for long term cell culture experiments.
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Affiliation(s)
- Simona Braccini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Chong-Bo Chen
- School of Life Sciences, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | | | - Francesca Barsotti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Claudia Ferrario
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Guo-Qiang Chen
- School of Life Sciences, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Dario Puppi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy.
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Sun J, Peterson EA, Chen X, Wang J. hapln1a + cells guide coronary growth during heart morphogenesis and regeneration. Nat Commun 2023; 14:3505. [PMID: 37311876 PMCID: PMC10264374 DOI: 10.1038/s41467-023-39323-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 06/07/2023] [Indexed: 06/15/2023] Open
Abstract
Although several tissues and chemokines orchestrate coronary formation, the guidance cues for coronary growth remain unclear. Here, we profile the juvenile zebrafish epicardium during coronary vascularization and identify hapln1a+ cells enriched with vascular-regulating genes. hapln1a+ cells not only envelop vessels but also form linear structures ahead of coronary sprouts. Live-imaging demonstrates that coronary growth occurs along these pre-formed structures, with depletion of hapln1a+ cells blocking this growth. hapln1a+ cells also pre-lead coronary sprouts during regeneration and hapln1a+ cell loss inhibits revascularization. Further, we identify serpine1 expression in hapln1a+ cells adjacent to coronary sprouts, and serpine1 inhibition blocks vascularization and revascularization. Moreover, we observe the hapln1a substrate, hyaluronan, forming linear structures along and preceding coronary vessels. Depletion of hapln1a+ cells or serpine1 activity inhibition disrupts hyaluronan structure. Our studies reveal that hapln1a+ cells and serpine1 are required for coronary production by establishing a microenvironment to facilitate guided coronary growth.
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Affiliation(s)
- Jisheng Sun
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Elizabeth A Peterson
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Xin Chen
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA
| | - Jinhu Wang
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA, 30322, USA.
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5
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Buckley C, Murphy EJ, Montgomery TR, Major I. Hyaluronic Acid: A Review of the Drug Delivery Capabilities of This Naturally Occurring Polysaccharide. Polymers (Basel) 2022; 14:polym14173442. [PMID: 36080515 PMCID: PMC9460006 DOI: 10.3390/polym14173442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
The inclusion of physiologically active molecules into a naturally occurring polymer matrix can improve the degradation, absorption, and release profile of the drug, thus boosting the therapeutic impact and potentially even reducing the frequency of administration. The human body produces significant amounts of polysaccharide hyaluronic acid, which boasts exceptional biocompatibility, biodegradability, and one-of-a-kind physicochemical features. In this review, we will examine the clinical trials currently utilizing hyaluronic acid and address the bright future of this versatile polymer, as well as summarize the numerous applications of hyaluronic acid in drug delivery and immunomodulation.
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Affiliation(s)
- Ciara Buckley
- PRISM Research Institute, Technological University of the Shannon, N37 HD68 Athlone, Ireland
- Biosciences Research Institute, Technological University of the Shannon, V94 EC5T Limerick, Ireland
| | - Emma J. Murphy
- PRISM Research Institute, Technological University of the Shannon, N37 HD68 Athlone, Ireland
- LIFE Research Institute, Technological University of the Shannon, V94 EC5T Limerick, Ireland
| | - Therese R. Montgomery
- School of Science and Computing, Atlantic Technological University, H91 T8NW Galway, Ireland
| | - Ian Major
- PRISM Research Institute, Technological University of the Shannon, N37 HD68 Athlone, Ireland
- Correspondence:
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Zizhou R, Wang X, Houshyar S. Review of Polymeric Biomimetic Small-Diameter Vascular Grafts to Tackle Intimal Hyperplasia. ACS OMEGA 2022; 7:22125-22148. [PMID: 35811906 PMCID: PMC9260943 DOI: 10.1021/acsomega.2c01740] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Small-diameter artificial vascular grafts (SDAVG) are used to bypass blood flow in arterial occlusive diseases such as coronary heart or peripheral arterial disease. However, SDAVGs are plagued by restenosis after a short while due to thrombosis and the thickening of the neointimal wall known as intimal hyperplasia (IH). The specific causes of IH have not yet been deduced; however, thrombosis formation due to bioincompatibility as well as a mismatch between the biomechanical properties of the SDAVG and the native artery has been attributed to its initiation. The main challenges that have been faced in fabricating SDAVGs are facilitating rapid re-endothelialization of the luminal surface of the SDAVG and replicating the complex viscoelastic behavior of the arteries. Recent strategies to combat IH formation have been mostly based on imitating the natural structure and function of the native artery (biomimicry). Thus, most recently, developed grafts contain a multilayered structure with a designated function for each layer. This paper reviews the current polymeric, biomimetic SDAVGs in preventing the formation of IH. The materials used in fabrication, challenges, and strategies employed to tackle IH are summarized and discussed, and we focus on the multilayered structure of current SDAVGs. Additionally, the future aspects in this area are pointed out for researchers to consider in their endeavor.
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Affiliation(s)
- Rumbidzai Zizhou
- Center
for Materials Innovation and Future Fashion (CMIFF), School of Fashion
and Textiles, RMIT University, Brunswick 3056, Australia
| | - Xin Wang
- Center
for Materials Innovation and Future Fashion (CMIFF), School of Fashion
and Textiles, RMIT University, Brunswick 3056, Australia
| | - Shadi Houshyar
- School
of Engineering, RMIT University, Melbourne 3000, Australia
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Madurga Patuel B, González-López R, Resel Folkersma L, Machado Fernández G, Adot Zurbano JM, Bonillo MÁ, Vozmediano Chicharro R, Zubiaur Líbano C. Recommendations on the use of intravesical hyaluronic acid instillations in bladder pain syndrome. Actas Urol Esp 2022; 46:131-137. [PMID: 35256323 DOI: 10.1016/j.acuroe.2022.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 11/25/2021] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Bladder pain syndrome (BPS) is a complex syndrome, without a clearly defined etiology that encompasses different entities, such as interstitial cystitis. This leads to difficulties in establishing a precise definition, obtaining accurate prevalence data, and defining diagnostic criteria and standardized assessment methods. Moreover, there is no consensus regarding the treatment of BPS. Intravesical instillations with hyaluronic acid (HA) are an option, although no specific recommendations have been made yet. OBJECTIVE To synthesize the scientific evidence on the therapeutic options available for BPS and to establish a work plan and recommendations for the use of intravesical instillations with HA. The Spanish Association of Urology, through the Functional, Female, and Urodynamic Urology Group, created a commission of experts. This commission was in charge of reviewing literature (evidence), agreeing on the work plan, and proposing recommendations. RESULTS There is great variability in literature on the treatment of BPS, without a standard regimen of intravesical instillation with HA (frequency and duration of initial and maintenance treatment). CONCLUSIONS Intravesical HA instillations (usual dose of 40 mg) are effective and safe. They can be combined with other options, with efficacy still to be determined in some cases. Treatment is divided into several initial weekly sessions, followed by maintenance treatment, usually monthly (unestablished duration of cycles). Recommendations on the management of BPS were agreed, with diagnostic criteria and guidelines for treatment with intravesical HA (initiation, reassessment, and follow-up).
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Affiliation(s)
- B Madurga Patuel
- Servicio de Urología, Hospital Universitario Puerta del Mar, Cádiz, Spain.
| | - R González-López
- Servicio de Urología, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - L Resel Folkersma
- Servicio de Urología, Hospital Universitario Clínico San Carlos, Madrid, Spain
| | | | - J M Adot Zurbano
- Servicio de Urología, Hospital Universitario de Burgos, Burgos, Spain
| | - M Á Bonillo
- Servicio de Urología, Hospital Universitario La Fe, Valencia, Spain
| | | | - C Zubiaur Líbano
- Servicio de Urología, Hospital Universitario de Basurto, Bilbao, Vizcaya, Spain
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Madurga Patuel B, González-López R, Resel Folkersma L, Machado Fernández G, Adot Zurbano J, Bonillo M, Vozmediano Chicharro R, Zubiaur Líbano C. Recomendaciones sobre el uso de las instilaciones endovesicales de ácido hialurónico en el síndrome de dolor vesical. Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Niu Y, Galluzzi M, Deng F, Zhao Z, Fu M, Su L, Sun W, Jia W, Xia H. A biomimetic hyaluronic acid‐silk fibroin nanofiber scaffold promoting regeneration of transected urothelium. Bioeng Transl Med 2021; 7:e10268. [PMID: 35600655 PMCID: PMC9115696 DOI: 10.1002/btm2.10268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 12/17/2022] Open
Abstract
This study was designed to investigate the regulatory effect of hyaluronic acid (HA)—coating silk fibroin (SF) nanofibers during epithelialization of urinary tract for urethral regeneration. The obtained electrospun biomimetic tubular HA‐SF nanofiber scaffold is composed of a dense inner layer and a porous outer layer in order to mimic adhesion and cavernous layers of the native tissue, respectively. A thin layer of HA‐gel coating was fixed in the inner wall to provide SF nanofibers with a dense and smooth surface nano‐topography and higher hydrophilicity. Compared with pure SF nanofibers, HA‐SF nanofibers significantly promoted the adhesion, growth, and proliferation of primary urothelial cells, and up‐regulate the expression of uroplakin‐3 (terminal differentiation keratin protein in urothelium). Using the New Zealand male rabbit urethral injury model, the scaffold composed of tubular HA‐SF nanofibers could recruit lumen and myoepithelial cells from the adjacent area of the host, rapidly reconstructing the urothelial barrier in the wound area in order to keep the urinary tract unobstructed, thereby promoting luminal epithelialization, smooth muscle bundle structural remodeling, and capillary formation. Overall, the synergistic effects of nano‐topography and biophysical cues in a biomimetic scaffold design for effective endogenous regeneration.
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Affiliation(s)
- Yuqing Niu
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Massimiliano Galluzzi
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen Guangdong China
| | - Fuming Deng
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Zhang Zhao
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Ming Fu
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Liang Su
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Weitang Sun
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Wei Jia
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
| | - Huimin Xia
- Department of Pediatric Surgery Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University Guangzhou Guangdong China
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Xu Q, Torres JE, Hakim M, Babiak PM, Pal P, Battistoni CM, Nguyen M, Panitch A, Solorio L, Liu JC. Collagen- and hyaluronic acid-based hydrogels and their biomedical applications. MATERIALS SCIENCE & ENGINEERING. R, REPORTS : A REVIEW JOURNAL 2021; 146:100641. [PMID: 34483486 PMCID: PMC8409465 DOI: 10.1016/j.mser.2021.100641] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hydrogels have been widely investigated in biomedical fields due to their similar physical and biochemical properties to the extracellular matrix (ECM). Collagen and hyaluronic acid (HA) are the main components of the ECM in many tissues. As a result, hydrogels prepared from collagen and HA hold inherent advantages in mimicking the structure and function of the native ECM. Numerous studies have focused on the development of collagen and HA hydrogels and their biomedical applications. In this extensive review, we provide a summary and analysis of the sources, features, and modifications of collagen and HA. Specifically, we highlight the fabrication, properties, and potential biomedical applications as well as promising commercialization of hydrogels based on these two natural polymers.
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Affiliation(s)
- Qinghua Xu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jessica E Torres
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mazin Hakim
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Paulina M Babiak
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Pallabi Pal
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Carly M Battistoni
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael Nguyen
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California Davis, Davis, California 95616, United States
| | - Luis Solorio
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
| | - Julie C Liu
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
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Alonci G, Mocchi R, Sommatis S, Capillo MC, Liga E, Janowska A, Nachbaur L, Zerbinati N. Physico-Chemical Characterization and In Vitro Biological Evaluation of a Bionic Hydrogel Based on Hyaluronic Acid and l-Lysine for Medical Applications. Pharmaceutics 2021; 13:pharmaceutics13081194. [PMID: 34452157 PMCID: PMC8400252 DOI: 10.3390/pharmaceutics13081194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 11/22/2022] Open
Abstract
Hyaluronic acid (HA) is an endogenous polysaccharide, whose hydrogels have been used in medical applications for decades. Here, we present a technology platform for stabilizing HA with a biocrosslinker, the amino acid l-Lysine, to manufacture bionic hydrogels for regenerative medicine. We synthetized bionic hydrogels with tailored composition with respect to HA concentration and degree of stabilization depending on the envisaged medical use. The structure of the hydrogels was assessed by microscopy and rheology, and the resorption behavior through enzymatic degradation with hyaluronidase. The biological compatibility was evaluated in vitro with human dermal fibroblast cell lines. HA bionic hydrogels stabilized with lysine show a 3D network structure, with a rheological profile that mimics biological matrixes, as a harmless biodegradable substrate for cell proliferation and regeneration and a promising candidate for wound healing and other medical applications.
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Affiliation(s)
- Giuseppe Alonci
- Qventis GmbH, 16761 Hennigsdorf, Germany;
- Matex Lab Switzerland SA, 1228 Plan-les-Ouates, Switzerland
| | - Roberto Mocchi
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Sabrina Sommatis
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Maria Chiara Capillo
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Elsa Liga
- UB—CARE S.r.l.-Spin-off University of Pavia, 27100 Pavia, Italy; (R.M.); (S.S.); (M.C.C.); (E.L.)
| | - Agata Janowska
- Department of Dermatology, University of Pisa, 56121 Pisa, Italy;
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
| | - Lidia Nachbaur
- Qventis GmbH, 16761 Hennigsdorf, Germany;
- Correspondence: (L.N.); (N.Z.)
| | - Nicola Zerbinati
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
- Correspondence: (L.N.); (N.Z.)
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12
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Lepedda AJ, Nieddu G, Formato M, Baker MB, Fernández-Pérez J, Moroni L. Glycosaminoglycans: From Vascular Physiology to Tissue Engineering Applications. Front Chem 2021; 9:680836. [PMID: 34084767 PMCID: PMC8167061 DOI: 10.3389/fchem.2021.680836] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/03/2021] [Indexed: 12/27/2022] Open
Abstract
Cardiovascular diseases represent the number one cause of death globally, with atherosclerosis a major contributor. Despite the clinical need for functional arterial substitutes, success has been limited to arterial replacements of large-caliber vessels (diameter > 6 mm), leaving the bulk of demand unmet. In this respect, one of the most challenging goals in tissue engineering is to design a "bioactive" resorbable scaffold, analogous to the natural extracellular matrix (ECM), able to guide the process of vascular tissue regeneration. Besides adequate mechanical properties to sustain the hemodynamic flow forces, scaffold's properties should include biocompatibility, controlled biodegradability with non-toxic products, low inflammatory/thrombotic potential, porosity, and a specific combination of molecular signals allowing vascular cells to attach, proliferate and synthesize their own ECM. Different fabrication methods, such as phase separation, self-assembly and electrospinning are currently used to obtain nanofibrous scaffolds with a well-organized architecture and mechanical properties suitable for vascular tissue regeneration. However, several studies have shown that naked scaffolds, although fabricated with biocompatible polymers, represent a poor substrate to be populated by vascular cells. In this respect, surface functionalization with bioactive natural molecules, such as collagen, elastin, fibrinogen, silk fibroin, alginate, chitosan, dextran, glycosaminoglycans (GAGs), and growth factors has proven to be effective. GAGs are complex anionic unbranched heteropolysaccharides that represent major structural and functional ECM components of connective tissues. GAGs are very heterogeneous in terms of type of repeating disaccharide unit, relative molecular mass, charge density, degree and pattern of sulfation, degree of epimerization and physicochemical properties. These molecules participate in a number of vascular events such as the regulation of vascular permeability, lipid metabolism, hemostasis, and thrombosis, but also interact with vascular cells, growth factors, and cytokines to modulate cell adhesion, migration, and proliferation. The primary goal of this review is to perform a critical analysis of the last twenty-years of literature in which GAGs have been used as molecular cues, able to guide the processes leading to correct endothelialization and neo-artery formation, as well as to provide readers with an overall picture of their potential as functional molecules for small-diameter vascular regeneration.
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Affiliation(s)
| | - Gabriele Nieddu
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Marilena Formato
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Matthew Brandon Baker
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht, Netherlands
| | - Julia Fernández-Pérez
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht, Netherlands
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht, Netherlands
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13
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Kyriakidis C, Lali F, Greco KV, García-Gareta E. Chronic Leg Ulcers: Are Tissue Engineering and Biomaterials Science the Solution? Bioengineering (Basel) 2021; 8:bioengineering8050062. [PMID: 34068781 PMCID: PMC8150748 DOI: 10.3390/bioengineering8050062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 11/21/2022] Open
Abstract
Chronic leg ulcers (CLUs) are full thickness wounds that usually occur between the ankle and knee, fail to heal after 3 months of standard treatment, or are not entirely healed at 12 months. CLUs present a considerable burden on patients, subjecting them to severe pain and distress, while healthcare systems suffer immense costs and loss of resources. The poor healing outcome of the standard treatment of CLUs generates an urgent clinical need to find effective solutions for these wounds. Tissue Engineering and Biomaterials Science offer exciting prospects for the treatment of CLUs, using a broad range of skin substitutes or scaffolds, and dressings. In this review, we summarize and discuss the various types of scaffolds used clinically in the treatment of CLUs. Their structure and therapeutic effects are described, and for each scaffold type representative examples are discussed, supported by clinical trials. Silver dressings are also reviewed due to their reported benefits in the healing of leg ulcers, as well as recent studies on new dermal scaffolds, reporting on clinical results where available. We conclude by arguing there is a further need for tissue-engineered products specifically designed and bioengineered to treat these wounds and we propose a series of properties that a biomaterial for CLUs should possess, with the intention of focusing efforts on finding an effective treatment.
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Affiliation(s)
- Christos Kyriakidis
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park and Saint Mark’s Hospital, London HA1 3UJ, UK;
| | - Ferdinand Lali
- The Griffin Institute, Northwick Park and Saint Mark’s Hospital, London HA1 3UJ, UK; (F.L.); (K.V.G.)
- Division of Surgery and Interventional Science, Royal Free Hospital Campus, University College London, London NW3 2QG, UK
| | - Karin Vicente Greco
- The Griffin Institute, Northwick Park and Saint Mark’s Hospital, London HA1 3UJ, UK; (F.L.); (K.V.G.)
- Division of Surgery and Interventional Science, Royal Free Hospital Campus, University College London, London NW3 2QG, UK
| | - Elena García-Gareta
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park and Saint Mark’s Hospital, London HA1 3UJ, UK;
- Division of Biomaterials and Tissue Engineering, Royal Free Hospital Campus, Eastman Dental Institute, University College London, London NW3 2QG, UK
- Correspondence: ; Tel.: +44-0-20-3958-0500
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14
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Nouri Barkestani M, Naserian S, Uzan G, Shamdani S. Post-decellularization techniques ameliorate cartilage decellularization process for tissue engineering applications. J Tissue Eng 2021; 12:2041731420983562. [PMID: 33738088 PMCID: PMC7934046 DOI: 10.1177/2041731420983562] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/06/2020] [Indexed: 12/17/2022] Open
Abstract
Due to the current lack of innovative and effective therapeutic approaches, tissue engineering (TE) has attracted much attention during the last decades providing new hopes for the treatment of several degenerative disorders. Tissue engineering is a complex procedure, which includes processes of decellularization and recellularization of biological tissues or functionalization of artificial scaffolds by active cells. In this review, we have first discussed those conventional steps, which have led to great advancements during the last several years. Moreover, we have paid special attention to the new methods of post-decellularization that can significantly ameliorate the efficiency of decellularized cartilage extracellular matrix (ECM) for the treatment of osteoarthritis (OA). We propose a series of post-decellularization procedures to overcome the current shortcomings such as low mechanical strength and poor bioactivity to improve decellularized ECM scaffold towards much more efficient and higher integration.
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Affiliation(s)
| | - Sina Naserian
- INSERM UMR-S-MD 1197, Hôpital Paul Brousse, Villejuif, France.,Université Paris-Saclay, CNRS, Centre de Nanosciences et Nanotechnologies C2N, UMR9001, Palaiseau, France.,CellMedEx, Saint Maur Des Fossés, France
| | - Georges Uzan
- INSERM UMR-S-MD 1197, Hôpital Paul Brousse, Villejuif, France.,Paris-Saclay University, Villejuif, France
| | - Sara Shamdani
- INSERM UMR-S-MD 1197, Hôpital Paul Brousse, Villejuif, France.,CellMedEx, Saint Maur Des Fossés, France
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15
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Abedin Dargoush S, Irani S, Naderi Sohi A, Soleimani M, Hanaee‐Ahvaz H. Chondroinductive impact of polyethersulfone/benzyl hyaluronate nanofibrous scaffold on human mesenchymal stem cells. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Shiva Irani
- Department of Biology, Science and Research Branch Islamic Azad University Tehran Iran
| | | | - Masoud Soleimani
- Hematology Department, Faculty of Medical Sciences Tarbiat Modares University Tehran Iran
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16
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Kozusko SD, Hassouba M, Hill DM, Liu X, Dadireddy K, Velamuri SR. Esterified Hyaluronic Acid Matrix in Lower Extremity Reconstruction With Exposed Tendon and Bone: A Retrospective Review. J Burn Care Res 2020; 41:828-834. [PMID: 32303758 PMCID: PMC7333675 DOI: 10.1093/jbcr/iraa044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Lower extremity wounds with exposed bone and tendon often need coverage to allow the underlying tissue to regenerate prior to skin graft. The surgeon is limited in his or her choices to augment tissue regeneration in these types of complicated cases; for instance, autologous skin should not be placed on exposed bone or tendon and is at risk for contracture when placed over the joints. Therefore, novel technologies are necessary to provide a scaffolding for tissue to regenerate and allow for a successful graft. One such technology is an esterified hyaluronic acid matrix (eHAM), which can provide a proper scaffold for endothelial cell migration and aid in angiogenesis. The eHAM is made of two layers: a layer of hyaluronic acid covered with a silicone layer. In this retrospective chart review, we describe our usage of eHAM to provide scaffolding for tissue regeneration prior to grafting in 15 cases of complicated lower extremity wounds with exposed bone and tendon. The average patient age was 45.8 years, and all patients had multiple medical comorbidities, such as poorly controlled diabetes mellitus, hypertension, and nicotine addiction. Patient wound types were diverse, including traumatic wounds, chronic diabetic foot ulcers, and thermal or electric burns. Thirteen of the 15 cases were treated successfully with eHAM. In these cases, definitive coverage with split-thickness skin grafting was effective and limb salvage was successful. In the 13 successful cases, the mean time to split-thickness skin graft was 22.9 ± 7.0 days. All patients continue to do well at follow-up (ranging from 6 to 48 weeks), with minimal complications reported. Given the success rate with eHAM in this challenging population, we conclude that eHAM can be a treatment option for similar cases.
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Affiliation(s)
- Steven D Kozusko
- Division of Plastic Surgery, Cooper University Hospital, Camden, New Jersey
| | - Mahmoud Hassouba
- Department of Plastic Surgery, University of Tennessee Health Science Center, Memphis
| | - David M Hill
- University of Tennessee Health Science Center, Memphis; Firefighters' Regional Burn Center, Memphis, Tennessee
| | - Xiangxia Liu
- Department of Plastic Surgery, University of Tennessee Health Science Center, Memphis
| | - Kalyan Dadireddy
- Department of Plastic Surgery, University of Tennessee Health Science Center, Memphis
| | - Sai R Velamuri
- University of Tennessee Health Science Center, Memphis; Firefighters' Regional Burn Center, Memphis, Tennessee
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17
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Hayes AJ, Melrose J. Glycosaminoglycan and Proteoglycan Biotherapeutics in Articular Cartilage Protection and Repair Strategies: Novel Approaches to Visco‐supplementation in Orthobiologics. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Anthony J. Hayes
- Bioimaging Research HubCardiff School of BiosciencesCardiff University Cardiff CF10 3AX Wales UK
| | - James Melrose
- Graduate School of Biomedical EngineeringUNSW Sydney Sydney NSW 2052 Australia
- Raymond Purves Bone and Joint Research LaboratoriesKolling Institute of Medical ResearchRoyal North Shore Hospital and The Faculty of Medicine and HealthUniversity of Sydney St. Leonards NSW 2065 Australia
- Sydney Medical SchoolNorthernRoyal North Shore HospitalSydney University St. Leonards NSW 2065 Australia
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18
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Charbonier FW, Zamani M, Huang NF. Endothelial Cell Mechanotransduction in the Dynamic Vascular Environment. ADVANCED BIOSYSTEMS 2019; 3:e1800252. [PMID: 31328152 PMCID: PMC6640152 DOI: 10.1002/adbi.201800252] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Indexed: 12/11/2022]
Abstract
The vascular endothelial cells (ECs) that line the inner layer of blood vessels are responsible for maintaining vascular homeostasis under physiological conditions. In the presence of disease or injury, ECs can become dysfunctional and contribute to a progressive decline in vascular health. ECs are constantly exposed to a variety of dynamic mechanical stimuli, including hemodynamic shear stress, pulsatile stretch, and passive signaling cues derived from the extracellular matrix. This review describes the molecular mechanisms by which ECs perceive and interpret these mechanical signals. The translational applications of mechanosensing are then discussed in the context of endothelial-to-mesenchymal transition and engineering of vascular grafts.
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Affiliation(s)
- Frank W. Charbonier
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305
| | - Maedeh Zamani
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305
| | - Ngan F. Huang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, 94305
- Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA, 94304
- The Stanford Cardiovascular Institute, Stanford University, Stanford, CA, 94305
- Stanford University, 300 Pasteur Drive, MC 5407, Stanford, CA 94305-5407, USA
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19
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Hiew VV, Simat SFB, Teoh PL. The Advancement of Biomaterials in Regulating Stem Cell Fate. Stem Cell Rev Rep 2018; 14:43-57. [PMID: 28884292 DOI: 10.1007/s12015-017-9764-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Stem cells are well-known to have prominent roles in tissue engineering applications. Embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) can differentiate into every cell type in the body while adult stem cells such as mesenchymal stem cells (MSCs) can be isolated from various sources. Nevertheless, an utmost limitation in harnessing stem cells for tissue engineering is the supply of cells. The advances in biomaterial technology allows the establishment of ex vivo expansion systems to overcome this bottleneck. The progress of various scaffold fabrication could direct stem cell fate decisions including cell proliferation and differentiation into specific lineages in vitro. Stem cell biology and biomaterial technology promote synergistic effect on stem cell-based regenerative therapies. Therefore, understanding the interaction of stem cell and biomaterials would allow the designation of new biomaterials for future clinical therapeutic applications for tissue regeneration. This review focuses mainly on the advances of natural and synthetic biomaterials in regulating stem cell fate decisions. We have also briefly discussed how biological and biophysical properties of biomaterials including wettability, chemical functionality, biodegradability and stiffness play their roles.
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Affiliation(s)
- Vun Vun Hiew
- Biotechonology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Siti Fatimah Binti Simat
- C/o Biotechonology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Peik Lin Teoh
- Biotechonology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia.
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20
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Karamanos NK, Piperigkou Z, Theocharis AD, Watanabe H, Franchi M, Baud S, Brézillon S, Götte M, Passi A, Vigetti D, Ricard-Blum S, Sanderson RD, Neill T, Iozzo RV. Proteoglycan Chemical Diversity Drives Multifunctional Cell Regulation and Therapeutics. Chem Rev 2018; 118:9152-9232. [DOI: 10.1021/acs.chemrev.8b00354] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nikos K. Karamanos
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras 26110, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras 26110, Greece
| | - Zoi Piperigkou
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras 26110, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras 26110, Greece
| | - Achilleas D. Theocharis
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, Patras 26110, Greece
| | - Hideto Watanabe
- Institute for Molecular Science of Medicine, Aichi Medical University, Aichi 480-1195, Japan
| | - Marco Franchi
- Department for Life Quality Studies, University of Bologna, Rimini 47100, Italy
| | - Stéphanie Baud
- Université de Reims Champagne-Ardenne, Laboratoire SiRMa, CNRS UMR MEDyC 7369, Faculté de Médecine, 51 rue Cognacq Jay, Reims 51100, France
| | - Stéphane Brézillon
- Université de Reims Champagne-Ardenne, Laboratoire de Biochimie Médicale et Biologie Moléculaire, CNRS UMR MEDyC 7369, Faculté de Médecine, 51 rue Cognacq Jay, Reims 51100, France
| | - Martin Götte
- Department of Gynecology and Obstetrics, Münster University Hospital, Münster 48149, Germany
| | - Alberto Passi
- Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy
| | - Davide Vigetti
- Department of Medicine and Surgery, University of Insubria, Varese 21100, Italy
| | - Sylvie Ricard-Blum
- University Claude Bernard Lyon 1, CNRS, UMR 5246, Institute of Molecular and Supramolecular Chemistry and Biochemistry, Villeurbanne 69622, France
| | - Ralph D. Sanderson
- Department of Pathology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Thomas Neill
- Department of Pathology, Anatomy and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 10107, United States
| | - Renato V. Iozzo
- Department of Pathology, Anatomy and Cell Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 10107, United States
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21
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Huerta-Ángeles G, Nešporová K, Ambrožová G, Kubala L, Velebný V. An Effective Translation: The Development of Hyaluronan-Based Medical Products From the Physicochemical, and Preclinical Aspects. Front Bioeng Biotechnol 2018; 6:62. [PMID: 29868577 PMCID: PMC5966713 DOI: 10.3389/fbioe.2018.00062] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/27/2018] [Indexed: 12/18/2022] Open
Abstract
This review shows the steps toward material selection focalized on the design and development of medical devices based on hyaluronan (HA). The selection is based on chemical and mechanical properties, biocompatibility, sterilization, safety, and scale-up costs. These facts play a vital role in the industrialization process. Approved medical devices containing-HA are illustrated to identify key parameters. The first part of this work involves the steps toward a complete characterization of chemical and mechanical aspects, reproducibility of the processes and scale up. In a second stage, we aimed to describe the preclinical in vitro and in vivo assays and selected examples of clinical trials. Furthermore, it is important to keep in mind the regulatory affairs during the research and development (R&D) using standardization (ISO standards) to achieve the main goal, which is the functionality and safety of the final device. To keep reproducible experimental data to prepare an efficient master file for the device, based on quality and recorded manufacturing data, and a rigorous R&D process may help toward clinical translation. A strong debate is still going on because the denominated basic research in HA field does not pay attention to the purity and quality of the raw materials used during the development. So that, to achieve the next generation of devices is needed to overcome the limitations of state of art in terms of efficacy, biodegradability, and non-toxicity.
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Affiliation(s)
| | - Kristina Nešporová
- Department of Research and Development, Contipro a.s., Dolní Dobrouč, Czechia
| | - Gabriela Ambrožová
- Free Radical Pathophysiology, Institute of Biophysics of the Czech Academy of Sciences, Brno, Czechia
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czechia
| | - Lukas Kubala
- Free Radical Pathophysiology, Institute of Biophysics of the Czech Academy of Sciences, Brno, Czechia
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czechia
| | - Vladimir Velebný
- Department of Research and Development, Contipro a.s., Dolní Dobrouč, Czechia
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22
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Buscemi S, Palumbo V, Maffongelli A, Fazzotta S, Palumbo F, Licciardi M, Fiorica C, Puleio R, Cassata G, Fiorello L, Buscemi G, lo Monte A. Electrospun PHEA-PLA/PCL Scaffold for Vascular Regeneration: A Preliminary in Vivo Evaluation. Transplant Proc 2017; 49:716-721. [DOI: 10.1016/j.transproceed.2017.02.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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Jiritano F, Garrasi C, Cristodoro L, Bevacqua E, Mastroroberto P. Repair of Penetrating Pericardial and Diaphragmatic Injury with Cormatrix® Patch in a Case of Suicide Attempt. Braz J Cardiovasc Surg 2017; 32:57-59. [PMID: 28423132 PMCID: PMC5382907 DOI: 10.21470/1678-9741-2016-0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 12/13/2016] [Indexed: 11/29/2022] Open
Abstract
The authors report the case of a suicide attempt. A 59-year-old man with
self-inflicted penetrating chest trauma underwent emergency cardiothoracic
surgery. Pre-operative computed tomography scan showed critical proximity
between the blade and the right ventricle. Intraoperative findings showed a
pericardial laceration and a huge diaphragmatic lesion with heart and abdominal
organs integrity. The diaphragm muscle was repaired with a CorMatrix®
patch, an acceptable alternative to the traditional synthetic mesh avoiding
infection and repeated herniation.
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Affiliation(s)
| | - Carlo Garrasi
- Cardiac Surgery Unit, Magna Graecia University of Catanzaro, Italy
| | - Lucia Cristodoro
- Cardiac Surgery Unit, Magna Graecia University of Catanzaro, Italy
| | - Egidio Bevacqua
- Cardiac Surgery Unit, Magna Graecia University of Catanzaro, Italy
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24
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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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25
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Dickinson LE, Gerecht S. Engineered Biopolymeric Scaffolds for Chronic Wound Healing. Front Physiol 2016; 7:341. [PMID: 27547189 PMCID: PMC4975021 DOI: 10.3389/fphys.2016.00341] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/22/2016] [Indexed: 12/13/2022] Open
Abstract
Skin regeneration requires the coordinated integration of concomitant biological and molecular events in the extracellular wound environment during overlapping phases of inflammation, proliferation, and matrix remodeling. This process is highly efficient during normal wound healing. However, chronic wounds fail to progress through the ordered and reparative wound healing process and are unable to heal, requiring long-term treatment at high costs. There are many advanced skin substitutes, which mostly comprise bioactive dressings containing mammalian derived matrix components, and/or human cells, in clinical use. However, it is presently hypothesized that no treatment significantly outperforms the others. To address this unmet challenge, recent research has focused on developing innovative acellular biopolymeric scaffolds as more efficacious wound healing therapies. These biomaterial-based skin substitutes are precisely engineered and fine-tuned to recapitulate aspects of the wound healing milieu and target specific events in the wound healing cascade to facilitate complete skin repair with restored function and tissue integrity. This mini-review will provide a brief overview of chronic wound healing and current skin substitute treatment strategies while focusing on recent engineering approaches that regenerate skin using synthetic, biopolymeric scaffolds. We discuss key polymeric scaffold design criteria, including degradation, biocompatibility, and microstructure, and how they translate to inductive microenvironments that stimulate cell infiltration and vascularization to enhance chronic wound healing. As healthcare moves toward precision medicine-based strategies, the potential and therapeutic implications of synthetic, biopolymeric scaffolds as tunable treatment modalities for chronic wounds will be considered.
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Affiliation(s)
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering, Institute for NanoBioTechnology, Johns Hopkins University Baltimore, MD, USA
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26
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Dautriche CN, Tian Y, Xie Y, Sharfstein ST. A Closer Look at Schlemm's Canal Cell Physiology: Implications for Biomimetics. J Funct Biomater 2015; 6:963-85. [PMID: 26402712 PMCID: PMC4598687 DOI: 10.3390/jfb6030963] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/10/2015] [Accepted: 09/06/2015] [Indexed: 12/13/2022] Open
Abstract
Among ocular pathologies, glaucoma is the second leading cause of progressive vision loss, expected to affect 80 million people worldwide by 2020. A primary cause of glaucoma appears to be damage to the conventional outflow tract. Conventional outflow tissues, a composite of the trabecular meshwork and the Schlemm's canal, regulate and maintain homeostatic responses to intraocular pressure. In glaucoma, filtration of aqueous humor into the Schlemm's canal is hindered, leading to an increase in intraocular pressure and subsequent damage to the optic nerve, with progressive vision loss. The Schlemm's canal encompasses a unique endothelium. Recent advances in culturing and manipulating Schlemm's canal cells have elucidated several aspects of their physiology, including ultrastructure, cell-specific marker expression, and biomechanical properties. This review highlights these advances and discusses implications for engineering a 3D, biomimetic, in vitro model of the Schlemm's canal endothelium to further advance glaucoma research, including drug testing and gene therapy screening.
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Affiliation(s)
- Cula N Dautriche
- State University of New York (SUNY) Polytechnic Institute, Colleges of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA.
| | - Yangzi Tian
- State University of New York (SUNY) Polytechnic Institute, Colleges of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA.
| | - Yubing Xie
- State University of New York (SUNY) Polytechnic Institute, Colleges of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA.
| | - Susan T Sharfstein
- State University of New York (SUNY) Polytechnic Institute, Colleges of Nanoscale Science and Engineering, 257 Fuller Road, Albany, NY 12203, USA.
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27
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Sankaran KK, Subramanian A, Krishnan UM, Sethuraman S. Nanoarchitecture of scaffolds and endothelial cells in engineering small diameter vascular grafts. Biotechnol J 2015; 10:96-108. [DOI: 10.1002/biot.201400415] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/27/2014] [Accepted: 12/03/2014] [Indexed: 12/14/2022]
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28
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Kumar AHS, Martin K, Doyle B, Huang CL, Pillai GKM, Ali MT, Skelding KA, Wang S, Gleeson BM, Jahangeer S, Ritman EL, Russell SJ, Caplice NM. Intravascular cell delivery device for therapeutic VEGF-induced angiogenesis in chronic vascular occlusion. Biomaterials 2014; 35:9012-22. [PMID: 25096850 DOI: 10.1016/j.biomaterials.2014.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 07/10/2014] [Indexed: 10/24/2022]
Abstract
Site specific targeting remains elusive for gene and stem cell therapies in the cardiovascular field. One promising option involves use of devices that deliver larger and more sustained cell/gene payloads to specific disease sites using the versatility of percutaneous vascular access technology. Smooth muscle cells (SMCs) engineered to deliver high local concentrations of an angiogenic molecule (VEGF) were placed in an intravascular cell delivery device (ICDD) in a porcine model of chronic total occlusion (CTO) involving ameroid placement on the proximal left circumflex (LCx) artery. Implanted SMC were retained within the ICDD and were competent for VEGF production in vitro and in vivo. Following implantation, micro-CT analyses revealed that ICDD-VEGF significantly enhanced vasa vasora microvessel density with a concomitant increase in tissue VEGF protein levels and formation of endothelial cell colonies suggesting increased angiogenic potential. ICDD-VEGF markedly enhanced regional blood flow determined by microsphere and contrast CT analysis translating to a functional improvement in regional wall motion and global left ventricular (LV) systolic and diastolic function. Our data indicate robust, clinically relevant angiogenesis can be achieved in a human scale porcine chronic vascular occlusion model following ICDD-VEGF-based delivery of angiogenic cells. This may have implications for percutaneous delivery of numerous therapeutic factors promoting creation of microvascular bypass networks in chronic vaso-occlusive diseases.
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Affiliation(s)
- Arun H S Kumar
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland
| | - Kenneth Martin
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland
| | - Brendan Doyle
- Division of Cardiovascular Diseases, Molecular Medicine Program, Mayo Clinic, Rochester, MN, USA
| | - Chien-Ling Huang
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland
| | - Gopala-Krishnan M Pillai
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland
| | - Mohammed T Ali
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland
| | - Kimberly A Skelding
- Division of Cardiovascular Diseases, Molecular Medicine Program, Mayo Clinic, Rochester, MN, USA
| | - Shaohua Wang
- Division of Cardiovascular Diseases, Molecular Medicine Program, Mayo Clinic, Rochester, MN, USA
| | - Birgitta M Gleeson
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland
| | - Saleem Jahangeer
- Cork Cancer Research Centre, Biosciences Institute, University College Cork, Cork, Ireland
| | - Erik L Ritman
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Stephen J Russell
- Division of Hematology, Molecular Medicine Program, Mayo Clinic, Rochester, MN, USA
| | - Noel M Caplice
- Centre for Research in Vascular Biology (CRVB), Biosciences Institute, University College Cork, Cork, Ireland; Division of Cardiovascular Diseases, Molecular Medicine Program, Mayo Clinic, Rochester, MN, USA.
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Bioengineered vascular scaffolds: the state of the art. Int J Artif Organs 2014; 37:503-12. [PMID: 25044387 DOI: 10.5301/ijao.5000343] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2014] [Indexed: 11/20/2022]
Abstract
To date, there is increasing clinical need for vascular substitutes due to accidents, malformations, and ischemic diseases. Over the years, many approaches have been developed to solve this problem, starting from autologous native vessels to artificial vascular grafts; unfortunately, none of these have provided the perfect vascular substitute. All have been burdened by various complications, including infection, thrombogenicity, calcification, foreign body reaction, lack of growth potential, late stenosis and occlusion from intimal hyperplasia, and pseudoaneurysm formation. In the last few years, vascular tissue engineering has emerged as one of the most promising approaches for producing mechanically competent vascular substitutes. Nanotechnologies have contributed their part, allowing extraordinarily biostable and biocompatible materials to be developed. Specifically, the use of electrospinning to manufacture conduits able to guarantee a stable flow of biological fluids and guide the formation of a new vessel has revolutionized the concept of the vascular substitute. The electrospinning technique allows extracellular matrix (ECM) to be mimicked with high fidelity, reproducing its porosity and complexity, and providing an environment suitable for cell growth. In the future, a better knowledge of ECM and the manufacture of new materials will allow us to "create" functional biological vessels - the base required to develop organ substitutes and eventually solve the problem of organ failure.
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Ronca A, Guarino V, Raucci MG, Salamanna F, Martini L, Zeppetelli S, Fini M, Kon E, Filardo G, Marcacci M, Ambrosio L. Large defect-tailored composite scaffolds for in vivo bone regeneration. J Biomater Appl 2014; 29:715-27. [PMID: 24951457 DOI: 10.1177/0885328214539823] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The discovery of new strategies to repair large segmental bone defects is currently an open challenge for worldwide clinicians. In the treatment of critical-sized bone defects, an alternative strategy to traditional bone grafting is always more frequently the use of tailor-made scaffolds modelled on the final size and shape of the implant site. Here, poly-ε-caprolactone-based composite scaffolds including poly-L-lactic acid continuous fibres and hyaluronan derivates (i.e. HYAFF11®) have been investigated for the peculiar 3D architecture characterized by interconnected macroporous networks and tunable mechanical properties. Composite scaffolds were immersed in simulated body fluid solution in order to support in vivo tissue in-growth. Scaffolds loaded with autologous cells (bone marrow stromal cells) plus platelet-rich plasma and osteoconductive protein such bone morphogenetic protein-7 were also tested to evaluate eventual enhancement in bone regeneration. The morphological and mechanical properties of poly-L-lactic acid-reinforced composite scaffolds have been studied to identify the optimal scaffold design to match the implant-site requirements of sheep metatarsal defects. Dynamic mechanical tests allowed to underline the viscoelastic response of the scaffold - resulting in elastic moduli from 2.5 to 1.3 MPa, suitable to temporarily support the structural function of damaged bone tissue. In vivo preliminary investigations in a sheep model of metatarsus shaft defect also showed the attitude of the scaffold to promote osteogenesis, preferentially in association with bone marrow stromal cell and platelet-rich plasma, even if the highest amount of mature bone was reached in the case of scaffold loaded with human bone morphogenetic protein-7 released via hydrolytic degradation of HYAFF11® phases in the implant site.
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Affiliation(s)
- Alfredo Ronca
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Maria Grazia Raucci
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Francesca Salamanna
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies-Department RIT Rizzoli, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Lucia Martini
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies-Department RIT Rizzoli, Rizzoli Orthopaedic Institute, Bologna, Italy Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Stefania Zeppetelli
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
| | - Milena Fini
- Laboratory of Biocompatibility, Technological Innovations and Advanced Therapies-Department RIT Rizzoli, Rizzoli Orthopaedic Institute, Bologna, Italy Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Elisaveta Kon
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - G Filardo
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Maurilio Marcacci
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Napoli, Italy
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Evaluation of Decellularized Extracellular Matrix of Skeletal Muscle for Tissue Engineering. Int J Artif Organs 2014; 37:546-55. [DOI: 10.5301/ijao.5000344] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2014] [Indexed: 01/18/2023]
Abstract
Objective We evaluated the effectiveness of enzyme-detergent methods on cell removal of mouse skeletal muscle tissue and assessed the biocompatibility of the decellularized tissues by an animal model. Methods The mouse latissimus dorsi (LD) muscles underwent decellularization with different enzyme-detergent mixtures (trypsin-Triton X-100, trypsin-sodium dodecyl sulfate (SDS), trypsin-Triton X-100-SDS). The effectiveness of decellularization was assessed by histology and DNA assay. The content in collagen and glycosaminoglycan was measured. The biomechanical property was evaluated in uniaxial tensile tests. For biocompatibility, the decellularized muscle specimens were implanted in situ and the tissue samples were retrieved at day 10, 20, and 30, to evaluate the host-graft inflammatory reaction. Results Extensive washing of the mouse LD muscles with an enzyme-detergent mixture (trypsin and Triton X-100) can yield an intact matrix devoid of cells, depleted of more than 93% nuclear component and exhibiting comparable biomechanical properties with native tissue. In addition, we observed increased infiltration of inflammatory cells into the scaffold initially, and the presence of M1 (CD68)-phenotype mononuclear cells 10 days after implantation, which decreased gradually until day 30. Conclusions The enzyme-detergent method can serve as an effective method for cell removal of mouse skeletal muscle. In short-term follow-up, the implanted scaffolds revealed mild inflammation with fibrotic tissue formation. The decellularized extracelluar matrix developed herein is shown to be feasible for further long-term study for detailed information about muscle regeneration, innervation, and angiogenesis in vivo.
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D'Este M, Eglin D, Alini M. A systematic analysis of DMTMM vs EDC/NHS for ligation of amines to hyaluronan in water. Carbohydr Polym 2014; 108:239-46. [PMID: 24751270 DOI: 10.1016/j.carbpol.2014.02.070] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/19/2014] [Accepted: 02/25/2014] [Indexed: 01/20/2023]
Abstract
The activation of carboxyl groups with N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride and N-hydroxysuccinimide (EDC/NHS) for amide formation is the standard method for amine ligation to hyaluronan (HA), and a very well established wide-ranging bioconjugation method. In this paper we compare 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMTMM) to EDC/NHS activation chemistry for HA ligation using an array of substrates including small, large and functional molecules. For all the substrates tested DMTMM yields were superior at parity of feed ratio. DMTMM chemistry resulted effective also in absence of pH control, which is essential for EDC/NHS conjugation. Overall our results demonstrate that DMTMM is more efficient than EDC/NHS for ligation of amines to HA and does not require accurate pH control or pH shift during the reaction to be effective. DMTMM-mediated ligation is a new promising chemical tool to synthesize HA derivatives for biomedical and pharmaceutical applications.
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Affiliation(s)
- Matteo D'Este
- AO Research Institute Davos, Davos Platz, Switzerland; Collaborative Research Partner Acute Cartilage Injury Program of AO Foundation, Davos, Switzerland.
| | - David Eglin
- AO Research Institute Davos, Davos Platz, Switzerland; Collaborative Research Partner Acute Cartilage Injury Program of AO Foundation, Davos, Switzerland
| | - Mauro Alini
- AO Research Institute Davos, Davos Platz, Switzerland; Collaborative Research Partner Acute Cartilage Injury Program of AO Foundation, Davos, Switzerland
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Anionic polymers and 10nm Fe3O4@UA wound dressings support human foetal stem cells normal development and exhibit great antimicrobial properties. Int J Pharm 2014; 463:146-54. [DOI: 10.1016/j.ijpharm.2013.08.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 08/21/2013] [Indexed: 11/24/2022]
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Abstract
Biomaterials are playing a vital role in our day-to-day life. Hyaluronan (hyaluronic acid), a biomaterial, receives special attention among them. Hyaluronic acid (HA) is a polyanionic natural polymer occurring as linear polysaccharide composed of glucuronic acid and N-acetylglucosamine repeats via a β-1,4 linkage. It is the most versatile macromolecule present in the connective tissues of all vertebrates. Hyaluronic acid has a wide range of applications with its excellent physicochemical properties such as biodegradability, biocompatibility, nontoxicity, and nonimmunogenicity and serves as an excellent tool in biomedical applications such as osteoarthritis surgery, ocular surgery, plastic surgery, tissue engineering, and drug delivery. It plays a key role in cushioning and lubricating the body and is abundant in the eyes, joints, and heart valves. A powerful antioxidant, hyaluronic acid is perhaps best known for its ability to bond water to tissue. Hyaluronan production increases in proliferating cells, and the polymer may play a role in mitosis. This chapter gives an overview of hyaluronic acid and its physicochemical properties and applications. This chapter gives a deep understanding on the special benefits of hyaluronic acid in the fields of pharmaceutical, medical, and environmental applications. Hyaluronic acid paves the way for beneficial research and applications to the welfare of life forms.
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Affiliation(s)
- Prasad N Sudha
- PG and Research Department of Chemistry, DKM College for Women, Thiruvalluvar University, Vellore, Tamil Nadu, India.
| | - Maximas H Rose
- Department of Biology, Sri Sai Vidyasharam, Vellore, Tamil Nadu, India
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Midha S, van den Bergh W, Kim TB, Lee PD, Jones JR, Mitchell CA. Bioactive glass foam scaffolds are remodelled by osteoclasts and support the formation of mineralized matrix and vascular networks in vitro. Adv Healthc Mater 2013. [PMID: 23184651 DOI: 10.1002/adhm.201200140] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Remodelling of scaffolds and new bone formation is critical for effective bone regeneration. Herein is reported the first demonstration of resorption pits due to osteoclast activity on the surface of sol-gel bioactive glass foam scaffolds. Bioactive glass foam scaffolds are known to have osteogenic potential and suitable pore networks for bone regeneration. Degradation of the scaffolds is known to be initially solution mediated, but for effective bone regeneration, remodelling of the scaffold by osteoclasts and vascularisation of the scaffold is necessary. The culture of C7 macrophages on a bioactive glass scaffold induces the cells to differentiate into (TRAP(+ve) ) osteoclasts. They then form distinctive resorption pits within 3 weeks, while MC3T3-E1 pre-osteoblasts deposit mineralized osteoid on their surfaces in co-culture. The scaffolds are of the 70S30C (70 mol% SiO2 , 30 mol% CaO) composition, with modal pore and interconnect diameters of 373 μm and 172 μm respectively (quantified by X-ray micro-tomography and 3D image analysis). The release of soluble silica and calcium ions from 70S30C scaffolds induces an increase in osteoblast numbers as determined via the MTT assay. Scaffolds also support growth of endothelial cells on their surface and tube formation (characteristic of functional microvasculature) following 4 days in culture. This data supports the hypothesis that 70S30C bioactive glass scaffolds promote the differentiation of the 3 main cell types involved in vascularized bone regeneration.
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Affiliation(s)
- Swati Midha
- Centre for Molecular Biosciences, University of Ulster at Coleraine, BT52 1SA, UK
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He S, Xia T, Wang H, Wei L, Luo X, Li X. Multiple release of polyplexes of plasmids VEGF and bFGF from electrospun fibrous scaffolds towards regeneration of mature blood vessels. Acta Biomater 2012; 8:2659-69. [PMID: 22484697 DOI: 10.1016/j.actbio.2012.03.044] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 03/12/2012] [Accepted: 03/28/2012] [Indexed: 11/18/2022]
Abstract
Key challenges associated with the outcomes of vascular grafting (for example, to fully vascularize engineered tissues and promptly regenerate blood vessel substitutes) remain unsolved. The local availability of angiogenic growth factors is highly desirable for tissue regeneration, and plasmid loading in scaffolds represents a powerful alternative for local production of tissue-inductive factors. No attempt has been made so far to clarify the efficacy of electrospun fibers with the loading of multiple plasmids to promote tissue regeneration. In the present study, core-sheath electrospun fibers with the encapsulation of polyplexes of basic fibroblast growth factor-encoding plasmid (pbFGF) and vascular endothelial growth factor-encoding plasmid (pVEGF) were evaluated to promote the generation of mature blood vessels. In vitro release indicated a sustained release of pDNA for ∼4 weeks with as low as ∼10% initial burst release, and the release patterns from the single and twofold plasmid-loaded systems coincided. In vitro investigations on human umbilical vein endothelial cells showed that the sustained release of pDNA from fibrous mats promoted cell attachment and viability, cell transfection and protein expression, and extracellular secretion of collagen IV and laminin. The acceleration of angiogenesis was assessed in vivo after subcutaneous implantation of fibrous scaffolds, and the explants were evaluated after 1, 2 and 4 weeks' treatment by histological and immunohistochemical staining. Compared with pDNA polyplex infiltrated fibrous mats, the pDNA polyplex encapsulated fibers alleviated the inflammation reaction and enhanced the generation of microvessels. Although there was no significant difference in the total number of microvessels, the density of mature vessels was significantly enhanced by the combined treatment with both pbFGF and pVEGF compared with those incorporating individual pDNA. The integration of the core-sheath structure, DNA condensation and multiple delivery strategies provided a potential platform for scaffold fabrication to regenerate functional tissues.
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Affiliation(s)
- Shuhui He
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China
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Su WY, Chen KH, Chen YC, Lee YH, Tseng CL, Lin FH. An Injectable Oxidated Hyaluronic Acid/Adipic Acid Dihydrazide Hydrogel as a Vitreous Substitute. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1777-97. [DOI: 10.1163/092050610x522729] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wen-Yu Su
- a Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.; Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan, R.O.C
| | - Ko-Hua Chen
- b Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan, R.O.C.; Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C.; National Yang-Ming University, Taipei, Taiwan, R.O.C
| | - Yu-Chun Chen
- c Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.; Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan, R.O.C
| | - Yen-Hsien Lee
- d Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan, R.O.C
| | - Ching-Li Tseng
- e Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan, R.O.C.; National Science Council, Taipei, Taiwan, R.O.C
| | - Feng-Huei Lin
- f Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.; Division of Medical Engineering Research, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 350, Taiwan, R.O.C.
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Zhu N, Chapman D, Cooper D, Schreyer DJ, Chen X. X-ray diffraction enhanced imaging as a novel method to visualize low-density scaffolds in soft tissue engineering. Tissue Eng Part C Methods 2011; 17:1071-80. [PMID: 21870940 DOI: 10.1089/ten.tec.2011.0102] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Scaffold visualization is challenging yet essential to the success of various tissue engineering applications. The aim of this study was to explore the potential of X-ray diffraction enhanced imaging (DEI) as a novel method for the visualization of low density engineered scaffolds in soft tissue. Imaging of the scaffolds made from poly(L-lactide) (PLLA) and chitosan was conducted using synchrotron radiation-based radiography, in-line phase-contrast imaging (in-line PCI), and DEI techniques as well as laboratory-based radiography. Scaffolds were visualized in air, water, and rat muscle tissue. Compared with the images from X-ray radiography and in-line PCI techniques, DEI images more clearly show the structure of the low density scaffold in air and have enhanced image contrast. DEI was the only technique able to visualize scaffolds embedded in unstained muscle tissue; this method could also define the microstructure of muscle tissue in the boundary areas. At a photon energy of 20 KeV, DEI had the capacity to image PLLA/chitosan scaffolds in soft tissue with a sample thickness of up to 4 cm. The DEI technique can be applied at high X-ray energies, thus facilitating lower in vivo radiation doses to tissues during imaging as compared to conventional radiography.
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Affiliation(s)
- Ning Zhu
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Elder AN, Dangelo NM, Kim SC, Washburn NR. Conjugation of β-Sheet Peptides to Modify the Rheological Properties of Hyaluronic Acid. Biomacromolecules 2011; 12:2610-6. [DOI: 10.1021/bm200393k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Allison N. Elder
- Department of Chemistry, and ‡Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Nicole M. Dangelo
- Department of Chemistry, and ‡Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Stephanie C. Kim
- Department of Chemistry, and ‡Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Newell R. Washburn
- Department of Chemistry, and ‡Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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Radhakumary C, Nandkumar AM, Nair PD. Hyaluronic acid-g-poly(HEMA) copolymer with potential implications for lung tissue engineering. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.03.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pandis L, Zavan B, Bassetto F, Ferroni L, Iacobellis L, Abatangelo G, Lepidi S, Cortivo R, Vindigni V. Hyaluronic acid biodegradable material for reconstruction of vascular wall: a preliminary study in rats. Microsurgery 2011; 31:138-45. [PMID: 21268111 DOI: 10.1002/micr.20856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Accepted: 10/14/2010] [Indexed: 11/09/2022]
Abstract
The objective of this preliminary study was to develop a reabsorbable vascular patch that did not require in vitro cell or biochemical preconditioning for vascular wall repair. Patches were composed only of hyaluronic acid (HA). Twenty male Wistar rats weighing 250-350 g were used. The abdominal aorta was exposed and isolated. A rectangular breach (1 mm × 5 mm) was made on vessel wall and arterial defect was repaired with HA made patch. Performance was assessed at 1, 2, 4, 8, and 16 weeks after surgery by histology and immunohistochemistry. Extracellular matrix components were evaluated by molecular biological methods. After 16 weeks, the biomaterial was almost completely degraded and replaced by a neoartery wall composed of endothelial cells, smooth muscle cells, collagen, and elastin fibers organized in layers. In conclusion, HA patches provide a provisional three-dimensional support to interact with cells for the control of their function, guiding the spatially and temporally multicellular processes of artery regeneration.
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Affiliation(s)
- Laura Pandis
- Clinic of Plastic and Reconstructive Surgery, University of Padova, Padova, Italy
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Pankajakshan D, Agrawal DK. Scaffolds in tissue engineering of blood vessels. Can J Physiol Pharmacol 2011; 88:855-73. [PMID: 20921972 DOI: 10.1139/y10-073] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tissue engineering of small diameter (<5 mm) blood vessels is a promising approach for developing viable alternatives to autologous vascular grafts. It involves in vitro seeding of cells onto a scaffold on which the cells attach, proliferate, and differentiate while secreting the components of extracellular matrix that are required for creating the tissue. The scaffold should provide the initial requisite mechanical strength to withstand in vivo hemodynamic forces until vascular smooth muscle cells and fibroblasts reinforce the extracellular matrix of the vessel wall. Hence, the choice of scaffold is crucial for providing guidance cues to the cells to behave in the required manner to produce tissues and organs of the desired shape and size. Several types of scaffolds have been used for the reconstruction of blood vessels. They can be broadly classified as biological scaffolds, decellularized matrices, and polymeric biodegradable scaffolds. This review focuses on the different types of scaffolds that have been designed, developed, and tested for tissue engineering of blood vessels, including use of stem cells in vascular tissue engineering.
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Affiliation(s)
- Divya Pankajakshan
- Center for Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska, USA
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Pandis L, Zavan B, Abatangelo G, Lepidi S, Cortivo R, Vindigni V. Hyaluronan-based scaffold for in vivo regeneration of the rat vena cava: Preliminary results in an animal model. J Biomed Mater Res A 2010; 93:1289-96. [PMID: 19827106 DOI: 10.1002/jbm.a.32626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The aim of this study was to develop a prosthetic graft that could perform as a small-diameter vascular conduit for vein regeneration. The difficulty of obtaining significant long-term patency and good wall mechanical strength in vivo has been a significant obstacle in achieving small-diameter vein prostheses. Fifteen Male Wistar rats weighing 250-350 g were used. Tubular structures of hyaluronan (HYAFF-11 tubules, 2 mm diameter, and 1.5 cm length) were implanted in the vena cava of rats as temporary absorbable guides to promote regeneration of veins. Performance was assessed at 30, 60, and 90 days after surgery by histology (hematoxylin-eosin and Weighert solution) and immunohistochemistry (antibodies to von Willebrand factor and to Myosin Light-Chain Kinase). These experiments resulted in two novel findings: (1) sequential regeneration of vascular components led to complete vein wall regeneration 30 days after surgery; (2) the biomaterial used created the ideal environment for the delicate regeneration process during the critical initial phases, yet its biodegradability allowed for complete degradation of the construct 4 months after implantation, at which time, a new vein remained to connect the vein stumps. This work demonstrates the complete vena cava regeneration inside the hyaluronic acid-based prosthesis, opening new perspective of microsurgical applications, like replantation of the upper limb, elongation of vascular pedicle of free flaps, cardiovascular surgery, and pediatric microvascular surgery.
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Affiliation(s)
- Laura Pandis
- Clinic of Plastic Surgery, University of Padova, Padova, Italy
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Abstract
In nerve tissue engineering, scaffolds act as carriers for cells and biochemical factors and as constructs providing appropriate mechanical conditions. During nerve regeneration, new tissue grows into the scaffolds, which degrade gradually. To optimize this process, researchers must study and analyze various morphological and structural features of the scaffolds, the ingrowth of nerve tissue, and scaffold degradation. Therefore, visualization of the scaffolds as well as the generated nerve tissue is essential, yet challenging Visualization techniques currently used in nerve tissue engineering include electron microscopy, confocal laser scanning microscopy (CLSM), and micro-computed tomography (micro-CT or μCT). Synchrotron-based micro-CT (SRμCT) is an emerging and promising technique, drawing considerable recent attention. Here, we review typical applications of these visualization techniques in nerve tissue engineering. The promise, feasibility, and challenges of SRμCT as a visualization technique applied to nerve tissue engineering are also discussed.
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Lord MS, Pasqui D, Barbucci R, Milthorpe BK. Protein adsorption on derivatives of hyaluronic acid and subsequent cellular response. J Biomed Mater Res A 2010; 91:635-46. [PMID: 18985762 DOI: 10.1002/jbm.a.32219] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The modulation of biological interactions with artificial surfaces is a vital aspect of biomaterials research. Serum protein adsorption onto photoreactive hyaluronic acid (Hyal-N(3)) and its sulfated derivative (HyalS-N(3)) was analyzed to determine extent of protein interaction and protein conformation as well as subsequent cell adhesion. There were no significant (p < 0.01) differences in the amount of protein adsorbed to the two polymers; however, proteins were found to be more loosely bound on HyalS-N(3) compared with Hyal-N(3). Fibronectin was adsorbed onto HyalS-N(3) in such an orientation as to allow the availability of the cell binding region, while there was more restricted access to this region on fibronectin adsorbed onto Hyal-N(3). This was confirmed by reduced cell adhesion on fibronectin precoated Hyal-N(3) compared with fibronectin precoated HyalS-N(3). Minimal cell adhesion was observed on albumin and serum precoated Hyal-N(3). The quartz crystal microbalance confirmed that specific cell-surface interactions were experienced by cells interacting with the fibronectin precoated polymers and serum precoated HyalS-N(3).
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Affiliation(s)
- Megan S Lord
- Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia.
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Donegan GC, Hunt JA, Rhodes N. Investigating the importance of flow when utilizing hyaluronan scaffolds for tissue engineering. J Tissue Eng Regen Med 2010; 4:83-95. [DOI: 10.1002/term.208] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Georgakoudi I, Rice WL, Hronik-Tupaj M, Kaplan DL. Optical spectroscopy and imaging for the noninvasive evaluation of engineered tissues. TISSUE ENGINEERING PART B-REVIEWS 2009; 14:321-40. [PMID: 18844604 DOI: 10.1089/ten.teb.2008.0248] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Optical spectroscopy and imaging approaches offer the potential to noninvasively assess different aspects of the cellular, extracellular matrix, and scaffold components of engineered tissues. In addition, the combination of multiple imaging modalities within a single instrument is highly feasible, allowing acquisition of complementary information related to the structure, organization, biochemistry, and physiology of the sample. The ability to characterize and monitor the dynamic interactions that take place as engineered tissues develop promises to enhance our understanding of the interdependence of processes that ultimately leads to functional tissue outcomes. It is expected that this information will impact significantly upon our abilities to optimize the design of biomaterial scaffolds, bioreactors, and cell systems. Here, we review the principles and performance characteristics of the main methodologies that have been exploited thus far, and we present examples of corresponding tissue engineering studies.
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Affiliation(s)
- Irene Georgakoudi
- Biomedical Engineering Department, Tufts University, Medford, Massachusetts 02155, USA.
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Pasquinelli G, Vinci MC, Gamberini C, Orrico C, Foroni L, Guarnieri C, Parenti A, Gargiulo M, Ledda F, Caldarera CM, Muscari C. Architectural Organization and Functional Features of Early Endothelial Progenitor Cells Cultured in a Hyaluronan-Based Polymer Scaffold. Tissue Eng Part A 2009; 15:2751-62. [DOI: 10.1089/ten.tea.2008.0232] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Gianandrea Pasquinelli
- Division of Clinical Pathology, Department of Radiological and Histocytopathological Sciences, University of Bologna, Bologna, Italy
- National Institute for Cardiovascular Research, Italy
| | - Maria Cristina Vinci
- National Institute for Cardiovascular Research, Italy
- Department of Preclinical and Clinical Pharmacology, University of Florence, Florence, Italy
| | - Chiara Gamberini
- National Institute for Cardiovascular Research, Italy
- Department of Biochemistry “G. Moruzzi,” University of Bologna, Bologna, Italy
| | - Catia Orrico
- Department of Specialistic Surgical Anesthesiological Sciences, University of Bologna, Bologna, Italy
| | - Laura Foroni
- Department of Specialistic Surgical Anesthesiological Sciences, University of Bologna, Bologna, Italy
| | - Carlo Guarnieri
- National Institute for Cardiovascular Research, Italy
- Department of Biochemistry “G. Moruzzi,” University of Bologna, Bologna, Italy
| | - Astrid Parenti
- National Institute for Cardiovascular Research, Italy
- Department of Preclinical and Clinical Pharmacology, University of Florence, Florence, Italy
| | - Mauro Gargiulo
- Department of Specialistic Surgical Anesthesiological Sciences, University of Bologna, Bologna, Italy
| | - Fabrizio Ledda
- National Institute for Cardiovascular Research, Italy
- Department of Preclinical and Clinical Pharmacology, University of Florence, Florence, Italy
| | - Claudio Marcello Caldarera
- National Institute for Cardiovascular Research, Italy
- Department of Biochemistry “G. Moruzzi,” University of Bologna, Bologna, Italy
| | - Claudio Muscari
- National Institute for Cardiovascular Research, Italy
- Department of Preclinical and Clinical Pharmacology, University of Florence, Florence, Italy
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Interfacing Sca-1(pos) mesenchymal stem cells with biocompatible scaffolds with different chemical composition and geometry. J Biomed Biotechnol 2009; 2009:910610. [PMID: 19644551 PMCID: PMC2715823 DOI: 10.1155/2009/910610] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Accepted: 05/19/2009] [Indexed: 12/16/2022] Open
Abstract
An immortalized murine mesenchymal stem cell line (mTERT-MSC) enriched for Linneg/Sca-1pos fraction has been obtained through the transfection of MSC with murine TERT and single-cell isolation. Such cell line maintained the typical MSC self-renewal capacity and continuously expressed MSC phenotype. Moreover, mTERT-MSC retained the functional features of freshly isolated MSC in culture without evidence of senescence or spontaneous differentiation events. Thus, mTERT-MSC have been cultured onto PLA films, 30 and 100 μm PLA microbeads, and onto unpressed and pressed HYAFF-11 scaffolds. While the cells adhered preserving their morphology on PLA films, clusters of mTERT-MSC were detected on PLA beads and unpressed fibrous scaffolds. Finally, mTERT-MSC were not able to colonize the inner layers of pressed HYAFF-11. Nevertheless, such cell line displayed the ability to preserve Sca-1 expression and to retain multilineage potential when appropriately stimulated on all the scaffolds tested.
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Hyaluronan benzyl ester as a scaffold for tissue engineering. Int J Mol Sci 2009; 10:2972-2985. [PMID: 19742179 PMCID: PMC2738906 DOI: 10.3390/ijms10072972] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2009] [Revised: 06/06/2009] [Accepted: 06/22/2009] [Indexed: 11/30/2022] Open
Abstract
Tissue engineering is a multidisciplinary field focused on in vitro reconstruction of mammalian tissues. In order to allow a similar three-dimensional organization of in vitro cultured cells, biocompatible scaffolds are needed. This need has provided immense momentum for research on “smart scaffolds” for use in cell culture. One of the most promising materials for tissue engineering and regenerative medicine is a hyaluronan derivative: a benzyl ester of hyaluronan (HYAFF®). HYAFF® can be processed to obtain several types of devices such as tubes, membranes, non-woven fabrics, gauzes, and sponges. All these scaffolds are highly biocompatible. In the human body they do not elicit any adverse reactions and are resorbed by the host tissues. Human hepatocytes, dermal fibroblasts and keratinocytes, chondrocytes, Schwann cells, bone marrow derived mesenchymal stem cells and adipose tissue derived mesenchymal stem cells have been successfully cultured in these meshes. The same scaffolds, in tube meshes, has been applied for vascular tissue engineering that has emerged as a promising technology for the design of an ideal, responsive, living conduit with properties similar to that of native tissue.
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