1
|
Vasconcelos NF, Chevallier P, Mantovani D, Rosa MDF, Barros FJS, Andrade FK, Vieira RS. Oxidized Bacterial Cellulose Membranes Immobilized with Papain for Dressing Applications: Physicochemical and In Vitro Biological Properties. Pharmaceutics 2024; 16:1085. [PMID: 39204430 PMCID: PMC11359937 DOI: 10.3390/pharmaceutics16081085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 08/02/2024] [Accepted: 08/16/2024] [Indexed: 09/04/2024] Open
Abstract
This research consolidates our group's advances in developing a therapeutic dressing with innovative enzymatic debridement, focusing on the physicochemical and in vitro biological properties of papain immobilized in wet oxidized bacterial cellulose (OxBC-Papain) dressing. OxBC membranes were produced with Komagataeibacter hansenii oxidized with NaIO4, and papain was immobilized on them. They were characterized in terms of enzyme stability (over 100 days), absorption capacity, water vapor transmission (WVT), hemocompatibility, cytotoxicity, and cell adhesion. The OxBC-Papain membrane showed 68.5% proteolytic activity after 100 days, demonstrating the benefit of using the OxBC wet membrane for papain stability. It had a WVT rate of 678 g/m2·24 h and cell viability of 99% and 86% for L929 and HaCat cells, respectively. The membranes exhibited non-hemolytic behavior and maintained 26% clotting capacity after 1 h. The wet OxBC-Papain membrane shows significant potential as a natural biomolecule-based therapeutic dressing for wound care, offering efficient debridement, moisture maintenance, exudate absorption, gas exchange, and hemostasis without cytotoxic effects or cell adhesion to the dressing. Further research, especially using in vivo models, is needed to assess its efficacy in inducing epithelialization. This study advances stomatherapy knowledge, providing a cost-effective solution for enzymatic debridement in healthcare.
Collapse
Affiliation(s)
- Niédja Fittipaldi Vasconcelos
- Centro de Tecnologias Estratégicas do Nordeste (CETENE), Laboratório de Materiais Nanoestruturados (LMNano), Cidade Universitária, Avenida Professor Luiz Freire 01, Recife 50740-540, PE, Brazil
| | - Pascale Chevallier
- Laboratory for Biomaterials & Bioengineering (LBB), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V 0A6, Canada; (P.C.); (D.M.)
| | - Diego Mantovani
- Laboratory for Biomaterials & Bioengineering (LBB), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V 0A6, Canada; (P.C.); (D.M.)
| | - Morsyleide de Freitas Rosa
- Embrapa Agroindústria Tropical–CNPAT, Rua Dra Sara Mesquita 2270, Planalto do Pici, Fortaleza 60511-110, CE, Brazil;
| | - Fernando José Soares Barros
- Departamento de Engenharia Química, Universidade Federal do Ceará (UFC), Bloco 709, Fortaleza 60455-760, CE, Brazil; (F.J.S.B.); (F.K.A.); (R.S.V.)
| | - Fábia Karine Andrade
- Departamento de Engenharia Química, Universidade Federal do Ceará (UFC), Bloco 709, Fortaleza 60455-760, CE, Brazil; (F.J.S.B.); (F.K.A.); (R.S.V.)
| | - Rodrigo Silveira Vieira
- Departamento de Engenharia Química, Universidade Federal do Ceará (UFC), Bloco 709, Fortaleza 60455-760, CE, Brazil; (F.J.S.B.); (F.K.A.); (R.S.V.)
| |
Collapse
|
2
|
Zumbardo-Bacelis GA, Peponi L, Vargas-Coronado RF, Rodríguez-Velázquez E, Alatorre-Meda M, Chevallier P, Copes F, Mantovani D, Abraham GA, Cauich-Rodríguez JV. A Comparison of Three-Layer and Single-Layer Small Vascular Grafts Manufactured via the Roto-Evaporation Method. Polymers (Basel) 2024; 16:1314. [PMID: 38794507 PMCID: PMC11125268 DOI: 10.3390/polym16101314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/18/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
This study used the roto-evaporation technique to engineer a 6 mm three-layer polyurethane vascular graft (TVG) that mimics the architecture of human coronary artery native vessels. Two segmented polyurethanes were synthesized using lysine (SPUUK) and ascorbic acid (SPUAA), and the resulting materials were used to create the intima and adventitia layers, respectively. In contrast, the media layer of the TVG was composed of a commercially available polyurethane, Pearlbond 703 EXP. For comparison purposes, single-layer vascular grafts (SVGs) from individual polyurethanes and a polyurethane blend (MVG) were made and tested similarly and evaluated according to the ISO 7198 standard. The TVG exhibited the highest circumferential tensile strength and longitudinal forces compared to single-layer vascular grafts of lower thicknesses made from the same polyurethanes. The TVG also showed higher suture and burst strength values than native vessels. The TVG withstood up to 2087 ± 139 mmHg and exhibited a compliance of 0.15 ± 0.1%/100 mmHg, while SPUUK SVGs showed a compliance of 5.21 ± 1.29%/100 mmHg, akin to coronary arteries but superior to the saphenous vein. An indirect cytocompatibility test using the MDA-MB-231 cell line showed 90 to 100% viability for all polyurethanes, surpassing the minimum 70% threshold needed for biomaterials deemed cytocompatibility. Despite the non-cytotoxic nature of the polyurethane extracts when grown directly on the surface, they displayed poor fibroblast adhesion, except for SPUUK. All vascular grafts showed hemolysis values under the permissible limit of 5% and longer coagulation times.
Collapse
Affiliation(s)
- Gualberto Antonio Zumbardo-Bacelis
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 #130 x 32 y 34, Colonia Chuburná de Hidalgo, Mérida C.P. 97205, Mexico; (G.A.Z.-B.); (R.F.V.-C.)
- Department of Chemical Engineering, Laval University, Quebec, QC G1V 0A6, Canada
| | - Laura Peponi
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain
| | - Rossana Faride Vargas-Coronado
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 #130 x 32 y 34, Colonia Chuburná de Hidalgo, Mérida C.P. 97205, Mexico; (G.A.Z.-B.); (R.F.V.-C.)
| | - Eustolia Rodríguez-Velázquez
- Facultad de Odontología, Universidad Autónoma de Baja California, Tijuana 22390, Mexico;
- Centro de Graduados e Investigación en Química-Grupo de Biomateriales y Nanomedicina, Tecnológico Nacional de México, Instituto Tecnológico de Tijuana, Tijuana 22510, Mexico
| | - Manuel Alatorre-Meda
- Centro de Graduados e Investigación en Química-Grupo de Biomateriales y Nanomedicina, CONAHCYT-Tecnológico Nacional de México, Instituto Tecnológico de Tijuana, Tijuana 22510, Mexico;
| | - Pascale Chevallier
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V0A6, Canada; (P.C.)
| | - Francesco Copes
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V0A6, Canada; (P.C.)
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V0A6, Canada; (P.C.)
| | - Gustavo A. Abraham
- Research Institute for Materials Science and Technology, INTEMA (UNMdP-CONICET). Av. Colón 10850, Mar del Plata B7606BWV, Argentina
| | - Juan Valerio Cauich-Rodríguez
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 #130 x 32 y 34, Colonia Chuburná de Hidalgo, Mérida C.P. 97205, Mexico; (G.A.Z.-B.); (R.F.V.-C.)
| |
Collapse
|
3
|
Mori K, Umeno T, Kawashima T, Wada T, Genda T, Arakura M, Oda Y, Mizoguchi T, Iwai R, Tajikawa T, Nakayama Y, Miyamoto S. Breaking the Limit of Cardiovascular Regenerative Medicine: Successful 6-Month Goat Implant in World's First Ascending Aortic Replacement Using Biotube Blood Vessels. Bioengineering (Basel) 2024; 11:405. [PMID: 38671826 PMCID: PMC11048657 DOI: 10.3390/bioengineering11040405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/12/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
This study investigated six-month outcomes of first models of ascending aortic replacement. The molds used to produce the Biotube were implanted subcutaneously in goats. After 2-3 months, the molds were explanted to obtain the Biotubes (inner diameter, 12 mm; wall thickness, 1.5 mm). Next, we performed ascending aortic replacement using the Biotube in five allogenic goats. At 6 months, the animals underwent computed tomography (CT) and histologic evaluation. As a comparison, we performed similar surgeries using glutaraldehyde-fixed autologous pericardial rolls or pig-derived heterogenous Biotubes. At 6 months, CT revealed no aneurysmalization of the Biotube or pseudoaneurysm formation. The histologic evaluation showed development of endothelial cells, smooth muscle cells, and elastic fibers along the Biotube. In the autologous pericardium group, there was no evidence of new cell development, but there was calcification. The histologic changes observed in the heterologous Biotube group were similar to those in the allogenic Biotube group. However, there was inflammatory cell infiltration in some heterologous Biotubes. Based on the above, we could successfully create the world's first Biotube-based ascending aortic replacement models. The present results indicate that the Biotube may serve as a scaffold for aortic tissue regeneration.
Collapse
Affiliation(s)
- Kazuki Mori
- Department of Cardiovascular Surgery, Oita University, Oita 879-5593, Japan; (T.U.); (T.K.); (T.W.); (S.M.)
| | - Tadashi Umeno
- Department of Cardiovascular Surgery, Oita University, Oita 879-5593, Japan; (T.U.); (T.K.); (T.W.); (S.M.)
| | - Takayuki Kawashima
- Department of Cardiovascular Surgery, Oita University, Oita 879-5593, Japan; (T.U.); (T.K.); (T.W.); (S.M.)
| | - Tomoyuki Wada
- Department of Cardiovascular Surgery, Oita University, Oita 879-5593, Japan; (T.U.); (T.K.); (T.W.); (S.M.)
| | - Takuro Genda
- Department of Clinical Engineering, Oita University Hospital, Oita 879-5593, Japan (T.M.)
| | - Masanagi Arakura
- Department of Clinical Engineering, Oita University Hospital, Oita 879-5593, Japan (T.M.)
| | - Yoshifumi Oda
- Department of Clinical Engineering, Oita University Hospital, Oita 879-5593, Japan (T.M.)
| | - Takayuki Mizoguchi
- Department of Clinical Engineering, Oita University Hospital, Oita 879-5593, Japan (T.M.)
| | - Ryosuke Iwai
- Institute of Frontier Science and Technology, Okayama University of Science, Okayama 700-0005, Japan;
| | - Tsutomu Tajikawa
- Department of Mechanical Engineering, Faculty of Engineering Science, Kansai University, Osaka 564-8680, Japan;
| | | | - Shinji Miyamoto
- Department of Cardiovascular Surgery, Oita University, Oita 879-5593, Japan; (T.U.); (T.K.); (T.W.); (S.M.)
| |
Collapse
|
4
|
Zhao G, Dong Y, Ye Z, Yao S, Wang L, Zhao Y, Chen B, Liu D, Dai J, Hu Y. Vaginal reconstruction by collagen scaffolds loaded with vaginal epithelial and smooth muscle cells in pigs. Biomater Sci 2024; 12:1042-1054. [PMID: 38221811 DOI: 10.1039/d3bm01611k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
In women, a healthy and functional vagina is important for the maintenance of a good quality of life. Various factors, including congenital anomalies, cancer, trauma, infections, inflammation, or iatrogenic injuries, can lead to damage or loss of the vaginal structure, necessitating repair or replacement. Often, such reconstruction procedures involve the use of nonvaginal tissue substitutes, like segments of the large intestine or skin, which are less than ideal both anatomically and functionally. Therefore, there is an urgent need to develop new methods of vaginal reconstruction. In this study, we established a new method for isolation and expansion of vaginal epithelial and smooth muscle cells. Subsequently, collagen scaffolds designed for vaginal reconstruction were loaded with vaginal epithelial and smooth muscle cells in vitro and tested in vivo using the vaginal excision pig model. The results showed that the collagen scaffold loaded with vaginal epithelial and smooth muscle cells significantly promotes the reconstruction of the vagina compared with small intestinal submucosa (SIS) membrane or bare collagen scaffold. Notably, the reconstructed vaginal tissues exhibit remarkable similarity to their normal counterparts, encompassing not only the vaginal epithelium and smooth muscle but also the intricate networks of blood vessels and nerves. These compelling results underscore the feasibility of a tissue engineering approach in vaginal reconstruction, offering promising prospects for improving the quality of life in affected individuals.
Collapse
Affiliation(s)
- Guangfeng Zhao
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Yishan Dong
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing 210000, China
| | - Ziying Ye
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Simin Yao
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Limin Wang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Yannan Zhao
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China.
| | - Bing Chen
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China.
| | - Dan Liu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China.
| | - Yali Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| |
Collapse
|
5
|
Cardona-Mendoza A, Roa Molina NS, Castillo DM, Lafaurie GI, Gualtero Escobar DF. Human Coronary Artery Endothelial Cell Response to Porphyromonas gingivalis W83 in a Collagen Three-Dimensional Culture Model. Microorganisms 2024; 12:248. [PMID: 38399652 PMCID: PMC10892777 DOI: 10.3390/microorganisms12020248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/25/2024] Open
Abstract
P. gingivalis has been reported to be an endothelial cell inflammatory response inducer that can lead to endothelial dysfunction processes related to atherosclerosis; however, these studies have been carried out in vitro in cell culture models on two-dimensional (2D) plastic surfaces that do not simulate the natural environment where pathology develops. This work aimed to evaluate the pro-inflammatory response of human coronary artery endothelial cells (HCAECs) to P. gingivalis in a 3D cell culture model compared with a 2D cell culture. HCAECs were cultured for 7 days on type I collagen matrices in both cultures and were stimulated at an MOI of 1 or 100 with live P. gingivalis W83 for 24 h. The expression of the genes COX-2, eNOS, and vWF and the levels of the pro-inflammatory cytokines thromboxane A2 (TXA-2) and prostaglandin I2 (PGI2) were evaluated. P. gingivalis W83 in the 2D cell culture increased IL-8 levels at MOI 100 and decreased MCP-1 levels at both MOI 100 and MOI 1. In contrast, the 3D cell culture induced an increased gene expression of COX-2 at both MOIs and reduced MCP-1 levels at MOI 100, whereas the gene expression of eNOS, vWF, and IL-8 and the levels of TXA2 and PGI2 showed no significant changes. These data suggest that in the collagen 3D culture model, P. gingivalis W83 induces a weak endothelial inflammatory response.
Collapse
Affiliation(s)
- Andrés Cardona-Mendoza
- Grupo de Inmunología Celular y Molecular Universidad El Bosque-INMUBO, Vicerrectoría de Investigaciones, Facultad de Odontología, Universidad El Bosque, Bogota 11001, Colombia;
- Unidad de Investigación Básica Oral-UIBO, Vicerrectoría de Investigaciones, Facultad de Odontología, Universidad El Bosque, Bogota 11001, Colombia; (D.M.C.); (G.I.L.)
| | - Nelly Stella Roa Molina
- Centro de Investigaciones Odontológicas (CIO), Facultad de Odontología, Pontificia Universidad Javeriana, Bogota 110231, Colombia;
| | - Diana Marcela Castillo
- Unidad de Investigación Básica Oral-UIBO, Vicerrectoría de Investigaciones, Facultad de Odontología, Universidad El Bosque, Bogota 11001, Colombia; (D.M.C.); (G.I.L.)
| | - Gloria Inés Lafaurie
- Unidad de Investigación Básica Oral-UIBO, Vicerrectoría de Investigaciones, Facultad de Odontología, Universidad El Bosque, Bogota 11001, Colombia; (D.M.C.); (G.I.L.)
| | - Diego Fernando Gualtero Escobar
- Unidad de Investigación Básica Oral-UIBO, Vicerrectoría de Investigaciones, Facultad de Odontología, Universidad El Bosque, Bogota 11001, Colombia; (D.M.C.); (G.I.L.)
| |
Collapse
|
6
|
Cheng MH, Chang CW, Wang J, Bupphathong S, Huang W, Lin CH. 3D-Bioprinted GelMA Scaffold with ASCs and HUVECs for Engineering Vascularized Adipose Tissue. ACS APPLIED BIO MATERIALS 2024; 7:406-415. [PMID: 38148527 DOI: 10.1021/acsabm.3c00964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
The purpose of tissue engineering is to reconstruct parts of injured tissues and to resolve the shortage of organ donations. However, the main concern is the limited size of engineered tissue due to insufficient oxygen and nutrition distribution in large three-dimensional (3D) tissue constructs. To provide better support for cells inside the scaffolds, the vascularization of blood vessels within the scaffold could be a solution. This study compared the effects of different culturing systems using human adipose tissue-derived stem/stromal cells (ASCs), human umbilical vein endothelial cells (HUVECs), and coculture of ASCs and HUVECs in 3D-bioprinted gelatin methacrylate (GelMA) hydrogel constructs. The in vitro results showed that the number of live cells was highest in the coculture of ASCs and HUVECs in the GelMA hydrogel after culturing for 21 days. Additionally, the tubular structure was the most abundant in the GelMA hydrogel, containing both ASCs and HUVECs. In the in vivo test, blood vessels were present in both the HUVECs and the coculture of ASCs and HUVECs hydrogels implanted in mice. However, the blood vessel density was the highest in the HUVEC and ASC coculture groups. These findings indicate that the 3D-bioprinted GelMA hydrogel coculture system could be a promising biomaterial for large tissue engineering applications.
Collapse
Affiliation(s)
- Ming-Huei Cheng
- Center of Lymphedema Microsurgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Chien-Wen Chang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jerry Wang
- Center for Tissue Engineering, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Sasinan Bupphathong
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- High-value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Wei Huang
- Department of Orthodontics, Rutgers School of Dental Medicine, Newark, New Jersey 07103, United States
| | - Chih-Hsin Lin
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| |
Collapse
|
7
|
Vach Agocsova S, Culenova M, Birova I, Omanikova L, Moncmanova B, Danisovic L, Ziaran S, Bakos D, Alexy P. Resorbable Biomaterials Used for 3D Scaffolds in Tissue Engineering: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4267. [PMID: 37374451 DOI: 10.3390/ma16124267] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/28/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023]
Abstract
This article provides a thorough overview of the available resorbable biomaterials appropriate for producing replacements for damaged tissues. In addition, their various properties and application possibilities are discussed as well. Biomaterials are fundamental components in tissue engineering (TE) of scaffolds and play a critical role. They need to exhibit biocompatibility, bioactivity, biodegradability, and non-toxicity, to ensure their ability to function effectively with an appropriate host response. With ongoing research and advancements in biomaterials for medical implants, the objective of this review is to explore recently developed implantable scaffold materials for various tissues. The categorization of biomaterials in this paper includes fossil-based materials (e.g., PCL, PVA, PU, PEG, and PPF), natural or bio-based materials (e.g., HA, PLA, PHB, PHBV, chitosan, fibrin, collagen, starch, and hydrogels), and hybrid biomaterials (e.g., PCL/PLA, PCL/PEG, PLA/PEG, PLA/PHB PCL/collagen, PCL/chitosan, PCL/starch, and PLA/bioceramics). The application of these biomaterials in both hard and soft TE is considered, with a particular focus on their physicochemical, mechanical, and biological properties. Furthermore, the interactions between scaffolds and the host immune system in the context of scaffold-driven tissue regeneration are discussed. Additionally, the article briefly mentions the concept of in situ TE, which leverages the self-renewal capacities of affected tissues and highlights the crucial role played by biopolymer-based scaffolds in this strategy.
Collapse
Affiliation(s)
- Sara Vach Agocsova
- Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37 Bratislava, Slovakia
| | | | - Ivana Birova
- Panara a.s., Krskanska 21, 949 05 Nitra, Slovakia
| | | | - Barbora Moncmanova
- Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37 Bratislava, Slovakia
| | - Lubos Danisovic
- National Institute of Rheumatic Diseases, Nabrezie I. Krasku 4, 921 12 Piestany, Slovakia
- Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University in Bratislava, 811 08 Bratislava, Slovakia
| | - Stanislav Ziaran
- National Institute of Rheumatic Diseases, Nabrezie I. Krasku 4, 921 12 Piestany, Slovakia
- Department of Urology, Faculty of Medicine, Comenius University, Limbova 5, 833 05 Bratislava, Slovakia
| | - Dusan Bakos
- Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37 Bratislava, Slovakia
- Panara a.s., Krskanska 21, 949 05 Nitra, Slovakia
| | - Pavol Alexy
- Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology, 812 37 Bratislava, Slovakia
- Panara a.s., Krskanska 21, 949 05 Nitra, Slovakia
| |
Collapse
|
8
|
Research progress of stem cell therapy for endometrial injury. Mater Today Bio 2022; 16:100389. [PMID: 36033375 PMCID: PMC9403503 DOI: 10.1016/j.mtbio.2022.100389] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/24/2022] Open
Abstract
Endometrial damage is an important factor leading to infertility and traditional conventional treatments have limited efficacy. As an emerging technology in recent years, stem cell therapy has provided new hope for the treatment of this disease. By comparing the advantages of stem cells from different sources, it is believed that menstrual blood endometrial stem cells have a good application prospect as a new source of stem cells. However, the clinical utility of stem cells is still limited by issues such as colonization rates, long-term efficacy, tumor formation, and storage and transportation. This paper summarizes the mechanism by which stem cells repair endometrial damage and clarifies the material basis of their effects from four aspects: replacement of damaged sites, paracrine effects, interaction with growth factors, and other new targets. According to the pathological characteristics and treatment requirements of intrauterine adhesion (IUA), the research work to solve the above problems from the aspects of functional bioscaffold preparation and multi-functional platform construction is also summarized. From the perspective of scaffold materials and component functions, this review will provide a reference for comprehensively optimizing the clinical application of stem cells.
Collapse
|
9
|
Wakai IY, Wang Q, Zhao J, Wang X, Xia S, Zhang W, Xu W, Feng Y. Surface modification of polycarbonate urethane by grafting polyethylene glycol and bivalirudin drug for improving hemocompatibility. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ibrahim Y. Wakai
- School of Chemical Engineering and Technology Tianjin University Tianjin China
| | - Qiulin Wang
- School of Chemical Engineering and Technology Tianjin University Tianjin China
| | - Jing Zhao
- School of Chemical Engineering and Technology Tianjin University Tianjin China
| | - Xiaoyu Wang
- School of Chemical Engineering and Technology Tianjin University Tianjin China
| | - Shihai Xia
- Department of Hepatopancreatobiliary and Splenic Medicine, Affiliated Hospital Logistics University of People's Armed Police Force Tianjin China
| | - Wencheng Zhang
- Department of Physiology and Pathophysiology Logistics University of People's Armed Police Force Tianjin China
| | - Wei Xu
- Department of Gastroenterology Center Characteristic Medical Center of Chinese People's Armed Police Force Tianjin China
- Tianjin Key Laboratory of Hepatopancreatic Fibrosis and Molecular Diagnosis & Treatment Tianjin China
| | - Yakai Feng
- School of Chemical Engineering and Technology Tianjin University Tianjin China
- Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University Tianjin China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin) Tianjin China
| |
Collapse
|
10
|
Ruan Y, Xiong Y, Fang W, Yu Q, Mai Y, Cao Z, Wang K, Lei M, Xu J, Liu Y, Zhang X, Liao W, Liu J. Highly sensitive Curcumin-conjugated nanotheranostic platform for detecting amyloid-beta plaques by magnetic resonance imaging and reversing cognitive deficits of Alzheimer's disease via NLRP3-inhibition. J Nanobiotechnology 2022; 20:322. [PMID: 35836190 PMCID: PMC9281113 DOI: 10.1186/s12951-022-01524-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common neurodegenerative disorder without effective therapy and lack diagnosis strategy for preclinical AD patients. There is an urgent need for development of both early diagnosis and therapeutic intervention of AD. RESULTS Herein, we developed a nanotheranostics platform consisting of Curcumin (Cur), an anti-inflammatory molecule, and superparamagnetic iron oxide (SPIO) nanoparticles encapsulated by diblock 1,2-dio-leoyl-sn-glycero-3-phosphoethanolamine-n-[poly(ethylene glycol)] (DSPE-PEG) that are modified with CRT and QSH peptides on its surface. Furthermore, we demonstrated that this multifunctional nanomaterial efficiently reduced β-amyloid plaque burden specifically in APP/PS1 transgenic mice, with the process noninvasively detected by magnetic resonance imaging (MRI) and the two-dimensional MRI images were computed into three-dimension (3D) plot. Our data demonstrated highly sensitive in vivo detection of β-amyloid plaques which more closely revealed real deposition of Aβ than previously reported and we quantified the volumes of plaques for the first time based on 3D plot. In addition, memory deficits of the mice were significantly rescued, probably related to inhibition of NLR Family Pyrin Domain Containing 3 (NLRP3) inflammasomes. CONCLUSIONS Gathered data demonstrated that this theranostic platform may have both early diagnostic and therapeutic potential in AD.
Collapse
Affiliation(s)
- Yuting Ruan
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Ying Xiong
- Department of Medical Ultrasound, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180, China
| | - Wenli Fang
- Department of Neurology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Qun Yu
- Department of Neurology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yingren Mai
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Zhiyu Cao
- Department of Neurology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Kexi Wang
- Department of Thoracic Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Ming Lei
- Department of Neurology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Jiaxin Xu
- Department of Neurology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yan Liu
- Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Xingcai Zhang
- Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
| | - Wang Liao
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China.
| | - Jun Liu
- Department of Neurology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China.
| |
Collapse
|
11
|
Ma J, Li J, Hu S, Wang X, Li M, Xie J, Shi Q, Li B, Lafu S, Chen H. Collagen Modified Anisotropic PLA Scaffold as a base for Peripheral Nerve Regeneration. Macromol Biosci 2022; 22:e2200119. [PMID: 35526091 DOI: 10.1002/mabi.202200119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/28/2022] [Indexed: 11/09/2022]
Abstract
Reconstruction of damaged nerves remains a significant unmet challenge in clinical medicine. Topographical and mechanical stimulations play important roles to repair peripheral nerve injury. The synergistic effects of topography and mechanical rigidity may significantly accelerate nerve regeneration. In this work, we developed a nerve-guiding collagen/polylactic acid (PLA) electrospun scaffold to facilitate peripheral nerve repair. The obtained anisotropic PLA electrospun scaffolds simulated the directional arranged structure of nerve realistically and promoted axonal regeneration after sciatic nerve injury when compared with the isotropic PLA electrospun scaffolds. Moreover, the collagen-modified PLA electrospun scaffolds further provided sufficient mechanical support and favorable microenvironment for axon regeneration. In addition, we observed that collagen-modified PLA electrospun scaffolds facilitated the axon regeneration by regulating YAP molecular pathway. Taken together, we engineered collagen-modified anisotropic PLA electrospun scaffolds may be a potential candidate to combine topography and mechanical rigidity for peripheral nerve regeneration. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Jinjin Ma
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Jiaying Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, China
| | - Sihan Hu
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Xingran Wang
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Meimei Li
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Jile Xie
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Qin Shi
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Bin Li
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, China
| | - Saiji Lafu
- Orthopaedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China.,Department of Orthopaedic Surgery, the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Hao Chen
- Affiliated Hospital & Medical College of Yangzhou University, Yangzhou, China
| |
Collapse
|
12
|
Zivari-Ghader T, Dolati S, Mehdizadeh A, Davaran S, Rashidi MR, Yousefi M. Recent scaffold-based tissue engineering approaches in premature ovarian failure treatment. J Tissue Eng Regen Med 2022; 16:605-620. [PMID: 35511799 DOI: 10.1002/term.3306] [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: 01/05/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 11/10/2022]
Abstract
Recently, tissue engineering and regenerative medicine have received significant attention with outstanding advances. The main scope of this technology is to recover the damaged tissues and organs or to maintain and improve their function. One of the essential fields in tissue engineering is scaffold designing and construction, playing an integral role in damaged tissues reconstruction and repair. However, premature ovarian failure (POF) is a disorder causing many medical and psychological problems in women. POF treatment using tissue engineering and various scaffold has recently made tremendous and promising progress. Due to the importance of the subject, we have summarized the recently examined scaffolds in the treatment of POF in this review.
Collapse
Affiliation(s)
- Tayyebeh Zivari-Ghader
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sanam Dolati
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Mehdizadeh
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soodabeh Davaran
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Rashidi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
13
|
Joseph J, Bruno VD, Sulaiman N, Ward A, Johnson TW, Baby HM, Nair SV, Menon D, George SJ, Ascione R. A novel small diameter nanotextile arterial graft is associated with surgical feasibility and safety and increased transmural endothelial ingrowth in pig. J Nanobiotechnology 2022; 20:71. [PMID: 35135545 PMCID: PMC8822766 DOI: 10.1186/s12951-022-01268-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/16/2022] [Indexed: 11/25/2022] Open
Abstract
Globally, millions of patients are affected by myocardial infarction or lower limb gangrene/amputation due to atherosclerosis. Available surgical treatment based on vein and synthetic grafts provides sub-optimal benefits. We engineered a highly flexible and mechanically robust nanotextile-based vascular graft (NanoGraft) by interweaving nanofibrous threads of poly-L-lactic acid to address the unmet need. The NanoGrafts were rendered impervious with selective fibrin deposition in the micropores by pre-clotting. The pre-clotted NanoGrafts (4 mm diameter) and ePTFE were implanted in a porcine carotid artery replacement model. The fibrin-laden porous milieu facilitated rapid endothelization by the transmural angiogenesis in the NanoGraft. In-vivo patency of NanoGrafts was 100% at 2- and 4-weeks, with no changes over time in lumen size, flow velocities, and minimal foreign-body inflammatory reaction. However, the patency of ePTFE at 2-week was 66% and showed marked infiltration, neointimal thickening, and poor host tissue integration. The study demonstrates the in-vivo feasibility and safety of a thin-layered vascular prosthesis, viz., NanoGraft, and its potential superiority over the commercial ePTFE.
Collapse
Affiliation(s)
- John Joseph
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK.,Centre for Nanosciences & Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, 682 041, India
| | - Vito Domenico Bruno
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK
| | - Nadiah Sulaiman
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK
| | - Alexander Ward
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK
| | - Thomas W Johnson
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK
| | - Helna Mary Baby
- Centre for Nanosciences & Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, 682 041, India
| | - Shantikumar V Nair
- Centre for Nanosciences & Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, 682 041, India
| | - Deepthy Menon
- Centre for Nanosciences & Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, 682 041, India.
| | - Sarah Jane George
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK.
| | - Raimondo Ascione
- Bristol Heart Institute and Translational Biomedical Research Centre, Faculty of Health Science, University of Bristol, Bristol, BS2 8HW, UK.
| |
Collapse
|
14
|
Kazemi T, Mohammadpour AA, Matin MM, Mahdavi-Shahri N, Dehghani H, Kazemi Riabi SH. Decellularized bovine aorta as a promising 3D elastin scaffold for vascular tissue engineering applications. Regen Med 2021; 16:1037-1050. [PMID: 34852636 DOI: 10.2217/rme-2021-0062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: To evaluate the suitability of using aorta elastin scaffold, in combination with human adipose-derived mesenchymal stem cells (hAd-MSCs), as an approach for cardiovascular tissue engineering. Materials & Methods: Human adipose-derived MSCs were seeded on elastin samples of decellularized bovine aorta. The samples were cultured in vitro to investigate the inductive effects of this scaffold on the cells. The results were evaluated using histological, and immunohistochemical methods, as well as MTT assay, DNA content, reverse transcription-PCR and scanning electron microscopy. Results: Histological staining and DNA content confirmed the efficacy of decellularization procedure (82% DNA removal). MTT assay showed the construct's ability to support cell viability and proliferation. Cell differentiation was confirmed by reverse transcription-PCR and positive immunohistochemistry for alfa smooth muscle actin and von Willebrand. Conclusion: The prepared aortic elastin samples act as a potential scaffold, in combination with MSCs, for applications in cardiovascular tissue engineering. Further experiments in animal models are required to confirm this.
Collapse
Affiliation(s)
- Tahmineh Kazemi
- Department of Basic Sciences, Faculty of Veterinary Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad A Mohammadpour
- Department of Basic Sciences, Faculty of Veterinary Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Novel Diagnostics & Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran; Stem Cell & Regenerative Medicine Research Group; Iranian Academic Center for Education, Culture & Research (ACECR) Khorasan Razavi Branch, Mashhad, Iran
| | - Nasser Mahdavi-Shahri
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Novel Diagnostics & Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hesam Dehghani
- Department of Basic Sciences, Faculty of Veterinary Science, Ferdowsi University of Mashhad, Mashhad, Iran; Embryonic & Stem Cell Biology & Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Seyed H Kazemi Riabi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
15
|
Wang H, Zhu C, Xu Z, Wei X, Shen H, Wang L, Wang B, Chen B, Zhao Y, Yu C, Dai J, Gao X. Clinical application of collagen membrane with umbilical cord-derived mesenchymal stem cells to repair nasal septal perforation. Biomed Mater 2021; 17. [PMID: 34706346 DOI: 10.1088/1748-605x/ac33c0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/27/2021] [Indexed: 11/11/2022]
Abstract
Objective. We aimed to investigate the clinical efficacy of collagen membrane with umbilical cord-derived mesenchymal stem cells in the endoscopic repair of nasal septal perforation.Methods.We performed a prospective clinical trial between March 2017 and October 2019. Nasal septal perforations were repaired by the endoscopic sandwich technique with the collagen membrane and umbilical cord-derived mesenchymal stem cells. These patients were followed up postoperatively. Their outcomes were comprehensively evaluated by assessing the healing process of the perforations, the visual analog scale (VAS) for nasal discomfort, and the nasal mucociliary transit time (MTT) for the regenerated nasal mucosa.Results. Our study included a total of eight patients with nasal septal perforation (six males and two females, age 36.6 ± 12.8 years, diameter of perforation 1.0 ± 0.2 cm). Seven patients successfully underwent surgical repair. These patients had significantly improved VAS scores 1 month after the operations (1.1 ± 0.4) compared with the preoperative period (5.9 ± 0.7) (P< 0.05). Although the nasal MTT in the nasal septum and the inferior turbinate surface were within the normal limits before the operation and at 1 month after the operation, the postoperative transit time (11.1 ± 2.0 m) was significantly shorter than the preoperative transit time (12.1 ± 2.4 m) (P< 0.05). There were no recurrences of perforation, scab formations, or epistaxis after the operation.Conclusions. The application of the collagen membrane with umbilical cord-derived mesenchymal stem cells is a simple and feasible endoscopic procedure to repair perforated nasal septa and restore satisfactory functional mucosa.
Collapse
Affiliation(s)
- Handong Wang
- Department of Otorhinolaryngology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Department of Otorhinolaryngology, Drum Tower Clinical Medical College, Nanjing Medical University, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Research Institute of Otorhinolaryngology, Drum Tower Hospital, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China
| | - Chengwen Zhu
- Department of Otorhinolaryngology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Department of Otorhinolaryngology, Drum Tower Clinical Medical College, Nanjing Medical University, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Research Institute of Otorhinolaryngology, Drum Tower Hospital, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China
| | - Zhengrong Xu
- Department of Otorhinolaryngology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Department of Otorhinolaryngology, Drum Tower Clinical Medical College, Nanjing Medical University, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Research Institute of Otorhinolaryngology, Drum Tower Hospital, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China
| | - Xianmei Wei
- Department of Otorhinolaryngology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Department of Otorhinolaryngology, Drum Tower Clinical Medical College, Nanjing Medical University, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Research Institute of Otorhinolaryngology, Drum Tower Hospital, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China
| | - He Shen
- Key Laboratory for Nano-Bio Interface Research Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Liudi Wang
- Clinical Stem Cell Center, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210000, People's Republic of China
| | - Bin Wang
- Clinical Stem Cell Center, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210000, People's Republic of China
| | - Bing Chen
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, People's Republic of China
| | - Yannan Zhao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, People's Republic of China
| | - Chenjie Yu
- Department of Otorhinolaryngology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Department of Otorhinolaryngology, Drum Tower Clinical Medical College, Nanjing Medical University, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Research Institute of Otorhinolaryngology, Drum Tower Hospital, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China
| | - Jianwu Dai
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, People's Republic of China.,Key Laboratory for Nano-Bio Interface Research Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Xia Gao
- Department of Otorhinolaryngology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Jiangsu Provincial Key Medical Discipline, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Department of Otorhinolaryngology, Drum Tower Clinical Medical College, Nanjing Medical University, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China.,Research Institute of Otorhinolaryngology, Drum Tower Hospital, No.321 Zhongshan Road, Nanjing 210008, People's Republic of China
| |
Collapse
|
16
|
Pien N, Pezzoli D, Van Hoorick J, Copes F, Vansteenland M, Albu M, De Meulenaer B, Mantovani D, Van Vlierberghe S, Dubruel P. Development of photo-crosslinkable collagen hydrogel building blocks for vascular tissue engineering applications: A superior alternative to methacrylated gelatin? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112460. [PMID: 34702535 DOI: 10.1016/j.msec.2021.112460] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 09/08/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022]
Abstract
The present work targets the development of collagen-based hydrogel precursors, functionalized with photo-crosslinkable methacrylamide moieties (COL-MA), for vascular tissue engineering (vTE) applications. The developed materials were physico-chemically characterized in terms of crosslinking kinetics, degree of modification/conversion, swelling behavior, mechanical properties and in vitro cytocompatibility. The collagen derivatives were benchmarked to methacrylamide-modified gelatin (GEL-MA), due to its proven track record in the field of tissue engineering. To the best of our knowledge, this is the first paper in its kind comparing these two methacrylated biopolymers for vTE applications. For both gelatin and collagen, two derivatives with varying degrees of substitutions (DS) were developed by altering the added amount of methacrylic anhydride (MeAnH). This led to photo-crosslinkable derivatives with a DS of 74 and 96% for collagen, and a DS of 73 and 99% for gelatin. The developed derivatives showed high gel fractions (i.e. 74% and 84%, for the gelatin derivatives; 87 and 83%, for the collagen derivatives) and an excellent crosslinking efficiency. Furthermore, the results indicated that the functionalization of collagen led to hydrogels with tunable mechanical properties (i.e. storage moduli of [4.8-9.4 kPa] for the developed COL-MAs versus [3.9-8.4 kPa] for the developed GEL-MAs) along with superior cell-biomaterial interactions when compared to GEL-MA. Moreover, the developed photo-crosslinkable collagens showed superior mechanical properties compared to extracted native collagen. Therefore, the developed photo-crosslinkable collagens demonstrate great potential as biomaterials for vTE applications.
Collapse
Affiliation(s)
- Nele Pien
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium; Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Daniele Pezzoli
- Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Jasper Van Hoorick
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium
| | - Francesco Copes
- Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Margot Vansteenland
- Research Group Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Ghent University, Coupure Links 653, Block B, 9000 Gent, Belgium
| | - Madalina Albu
- Department of Collagen Research, National Research & Development Institute for Textiles and Leather, Str. Patrascanu Lucretiu, 16, Bucuresti-Sector 3, Bucuresti 030508, București, Romania
| | - Bruno De Meulenaer
- Research Group Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Ghent University, Coupure Links 653, Block B, 9000 Gent, Belgium
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering, CRC-I, Laval University, Pavillon Pouliot, Québec G1V 0A6, Canada
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Gent, Belgium.
| |
Collapse
|
17
|
Abstract
Tissue engineering is one of the most promising scientific breakthroughs of the late 20th century. Its objective is to produce in vitro tissues or organs to repair and replace damaged ones using various techniques, biomaterials, and cells. Tissue engineering emerged to substitute the use of native autologous tissues, whose quantities are sometimes insufficient to correct the most severe pathologies. Indeed, the patient’s health status, regulations, or fibrotic scars at the site of the initial biopsy limit their availability, especially to treat recurrence. This new technology relies on the use of biomaterials to create scaffolds on which the patient’s cells can be seeded. This review focuses on the reconstruction, by tissue engineering, of two types of tissue with tubular structures: vascular and urological grafts. The emphasis is on self-assembly methods which allow the production of tissue/organ substitute without the use of exogenous material, with the patient’s cells producing their own scaffold. These continuously improved techniques, which allow rapid graft integration without immune rejection in the treatment of severely burned patients, give hope that similar results will be observed in the vascular and urological fields.
Collapse
|
18
|
Li L, Chen Z, Lu J, Wei M, Huang Y, Jiang P. Combustion Behavior and Thermal Degradation Properties of Wood Impregnated with Intumescent Biomass Flame Retardants: Phytic Acid, Hydrolyzed Collagen, and Glycerol. ACS OMEGA 2021; 6:3921-3930. [PMID: 33585771 PMCID: PMC7876853 DOI: 10.1021/acsomega.0c05778] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/21/2021] [Indexed: 05/06/2023]
Abstract
Wood is a natural renewable material with a porous structure widely used in construction, furniture, and interior decoration, yet its intrinsic flammability poses safety risks. Therefore, environmentally friendly flame retardants have received increasing attention. In this study, a water-soluble flame retardant, consisting of bio-resourced phytic acid (PA), hydrolyzed collagen (HC), and glycerol (GL), was used to improve the flame retardancy of wood ("PHG/wood") through full cell vacuum-pressure impregnation. Morphology and Fourier transform infrared analysis results show that the flame retardant impregnated the wood and adhered evenly to the wood vessels. A PA/HC/GL ratio of 3:1:1 (concentration of the flame retardant solution = 30%) maximized the limiting oxygen index (LOI, 41%) and weight gain (51.32%) for PHG-C30/wood. The flame retardant formed an expansive layer after heating, and the treated wood showed an improved combustion safety performance such that the fire performance index and residue of PHG-C30/wood were 75 and 126.8% higher compared with that of untreated wood, respectively. The peak and total heat release were also significantly reduced by 54.7 and 47.7%, respectively. The PHG/wood exhibited good carbon-forming performance and a high degree of graphitization after combustion. The dense carbon layer provides condensed phase protective action, and non-combustible volatile gases, such as H2O, CO2, and NH3, are released simultaneously to dilute the fuel load in the gas phase. Thus, PHG is shown to be an effective flame retardant for wood.
Collapse
Affiliation(s)
- Luming Li
- Chinese
Academy of Forestry, Research Institute of Wood Industry, Xiangshan Road, Haidian District, 100091 Beijing, China
| | - Zhilin Chen
- Chinese
Academy of Forestry, Research Institute of Wood Industry, Xiangshan Road, Haidian District, 100091 Beijing, China
| | - Jinhan Lu
- Chinese
Academy of Forestry, Research Institute of Wood Industry, Xiangshan Road, Haidian District, 100091 Beijing, China
| | - Ming Wei
- Shangdong
Xingang Enterprise Group Co., Ltd, Yitang Industrial Park, Lanshan District, 276002 Linyi, China
| | - Yuxiang Huang
- Chinese
Academy of Forestry, Research Institute of Wood Industry, Xiangshan Road, Haidian District, 100091 Beijing, China
| | - Peng Jiang
- Chinese
Academy of Forestry, Research Institute of Wood Industry, Xiangshan Road, Haidian District, 100091 Beijing, China
| |
Collapse
|
19
|
Yang L, Li X, Wu Y, Du P, Sun L, Yu Z, Song S, Yin J, Ma X, Jing C, Zhao J, Chen H, Dong Y, Zhang Q, Zhao L. Preparation of PU/Fibrin Vascular Scaffold with Good Biomechanical Properties and Evaluation of Its Performance in vitro and in vivo. Int J Nanomedicine 2020; 15:8697-8715. [PMID: 33192062 PMCID: PMC7656973 DOI: 10.2147/ijn.s274459] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/25/2020] [Indexed: 01/22/2023] Open
Abstract
PURPOSE The development of tissue-engineered blood vessels provides a new source of donors for coronary artery bypass grafting and peripheral blood vessel transplantation. Fibrin fiber has good biocompatibility and is an ideal tissue engineering vascular scaffold, but its mechanical property needs improvement. METHODS We mixed polyurethane (PU) and fibrin to prepare the PU/fibrin vascular scaffolds by using electrospinning technology in order to enhance the mechanical properties of fibrin scaffold. We investigated the morphological, mechanical strength, hydrophilicity, degradation, blood and cell compatibility of PU/fibrin (0:100), PU/fibrin (5:95), PU/fibrin (15:85) and PU/fibrin (25:75) vascular scaffolds. Based on the results in vitro, PU/fibrin (15:85) was selected for transplantation in vivo to repair vascular defects, and the extracellular matrix formation, vascular remodeling, and immune response were evaluated. RESULTS The results indicated that the fiber diameter of the PU/fibrin (15:85) scaffold was about 712nm. With the increase of PU content, the mechanical strength of the composite scaffolds increased, however, the degradation rate decreased gradually. The PU/fibrin scaffold showed good hydrophilicity and hemocompatibility. PU/fibrin (15:85) vascular scaffold could promote the adhesion and proliferation of mesenchymal stromal cells (MSCs). Quantitative RT-PCR experimental results showed that the expression of collagen, survivin and vimentin genes in PU/fibrin (15:85) was higher than that in PU/fibrin (25:75). The results in vivo indicated the mechanical properties and compliance of PU/fibrin grafts could meet clinical requirements and the proportion of thrombosis or occlusion was significantly lower. The graft showed strong vasomotor response, and the smooth muscle cells, endothelial cells, and ECM deposition of the neoartery were comparable to that of native artery after 3 months. At 3 months, the amount of macrophages in PU/fibrin grafts was significantly lower, and the secretion of pro-inflammatory and anti-inflammatory cytokines decreased. CONCLUSION PU/fibrin (15:85) vascular scaffolds had great potential to be used as small-diameter tissue engineering blood vessels.
Collapse
Affiliation(s)
- Lei Yang
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
- Department of Orthopedics, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Xiafei Li
- College of Medical Engineering, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Yiting Wu
- Xiacun Community Health Service Center, Shenzhen Hospital, University of Chinese Academy of Sciences, Shenzhen, People’s Republic of China
| | - Pengchong Du
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
- Department of Cardio-Thoracic Surgery, Third Affiliated Hospital, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Lulu Sun
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Zhenyang Yu
- Department of Orthopedics, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Shuang Song
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Jianshen Yin
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Xianfen Ma
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Changqin Jing
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Junqiang Zhao
- College of Medical Engineering, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Hongli Chen
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Yuzhen Dong
- Department of Orthopedics, First Affiliated Hospital, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Qiqing Zhang
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
| | - Liang Zhao
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, People’s Republic of China
- Key Laboratory of Cardiac Structure Research, Zhengzhou Seventh People’s Hospital, Zhengzhou, People’s Republic of China
- The Central Lab, The Third People’s Hospital of Datong, Datong, People’s Republic of China
| |
Collapse
|
20
|
Obiweluozor FO, Emechebe GA, Kim DW, Cho HJ, Park CH, Kim CS, Jeong IS. Considerations in the Development of Small-Diameter Vascular Graft as an Alternative for Bypass and Reconstructive Surgeries: A Review. Cardiovasc Eng Technol 2020; 11:495-521. [PMID: 32812139 DOI: 10.1007/s13239-020-00482-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 08/11/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Current design strategies for small diameter vascular grafts (< 6 mm internal diameter; ID) are focused on mimicking native vascular tissue because the commercially available grafts still fail at small diameters, notably due to development of intimal hyperplasia and thrombosis. To overcome these challenges, various design approaches, material selection, and surface modification strategies have been employed to improve the patency of small-diameter grafts. REVIEW The purpose of this review is to outline various considerations in the development of small-diameter vascular grafts, including material choice, surface modifications to enhance biocompatibility/endothelialization, and mechanical properties of the graft, that are currently being implanted. Additionally, we have taken into account the general vascular physiology, tissue engineering approaches, and collective achievements of the authors in this area. We reviewed both commercially available synthetic grafts (e-PTFE and PET), elastic polymers such as polyurethane and biodegradable and bioresorbable materials. We included naturally occurring materials by focusing on their potential application in the development of future vascular alternatives. CONCLUSION Until now, there are few comprehensive reviews regarding considerations in the design of small-diameter vascular grafts in the literature. Here-in, we have discussed in-depth the various strategies employed to generate engineered vascular graft due to their high demand for vascular surgeries. While some TEVG design strategies have shown greater potential in contrast to autologous or synthetic ePTFE conduits, many are still hindered by high production cost which prevents their widespread adoption. Nonetheless, as tissue engineers continue to develop on their strategies and procedures for improved TEVGs, soon, a reliable engineered graft will be available in the market. Hence, we anticipate a viable TEVG with resorbable property, fabricated via electrospinning approach to hold a greater potential that can overcome the challenges observed in both autologous and allogenic grafts. This is because they can be mechanically tuned, incorporated/surface-functionalized with bioactive molecules and mass-manufactured in a reproducible manner. It is also found that most of the success in engineered vascular graft approaching commercialization is for large vessels rather than small-diameter grafts used as cardiovascular bypass grafts. Consequently, the field of vascular engineering is still available for future innovators that can take up the challenge to create a functional arterial substitute.
Collapse
Affiliation(s)
- Francis O Obiweluozor
- Department of Cardiac and Thoracic Surgery, Chonnam National University Hospital and Medical School, 42 Jebong-Ro Dong-gu, Gwangju, 501-757, Republic of Korea.
| | - Gladys A Emechebe
- Department of Bionanosystem Engineering Graduate School, Chonbuk National University, Jeonju City, Republic of Korea
| | - Do-Wan Kim
- Department of Cardiac and Thoracic Surgery, Chonnam National University Hospital and Medical School, 42 Jebong-Ro Dong-gu, Gwangju, 501-757, Republic of Korea
| | - Hwa-Jin Cho
- Department of Cardiac and Thoracic Surgery, Chonnam National University Hospital and Medical School, 42 Jebong-Ro Dong-gu, Gwangju, 501-757, Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering Graduate School, Chonbuk National University, Jeonju City, Republic of Korea
- Department of Mechanical Engineering Graduate School, Chonbuk National University, Jeonju City, Republic of Korea
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering Graduate School, Chonbuk National University, Jeonju City, Republic of Korea
- Department of Mechanical Engineering Graduate School, Chonbuk National University, Jeonju City, Republic of Korea
| | - In Seok Jeong
- Department of Cardiac and Thoracic Surgery, Chonnam National University Hospital and Medical School, 42 Jebong-Ro Dong-gu, Gwangju, 501-757, Republic of Korea.
| |
Collapse
|
21
|
Kumar SSD, Abrahamse H. Advancement of Nanobiomaterials to Deliver Natural Compounds for Tissue Engineering Applications. Int J Mol Sci 2020; 21:E6752. [PMID: 32942542 PMCID: PMC7555266 DOI: 10.3390/ijms21186752] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/01/2020] [Accepted: 09/04/2020] [Indexed: 12/21/2022] Open
Abstract
Recent advancement in nanotechnology has provided a wide range of benefits in the biological sciences, especially in the field of tissue engineering and wound healing. Nanotechnology provides an easy process for designing nanocarrier-based biomaterials for the purpose and specific needs of tissue engineering applications. Naturally available medicinal compounds have unique clinical benefits, which can be incorporated into nanobiomaterials and enhance their applications in tissue engineering. The choice of using natural compounds in tissue engineering improves treatment modalities and can deal with side effects associated with synthetic drugs. In this review article, we focus on advances in the use of nanobiomaterials to deliver naturally available medicinal compounds for tissue engineering application, including the types of biomaterials, the potential role of nanocarriers, and the various effects of naturally available medicinal compounds incorporated scaffolds in tissue engineering.
Collapse
Affiliation(s)
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg 2028, South Africa;
| |
Collapse
|
22
|
Wu WQ, Peng S, Song ZY, Lin S. Collagen biomaterial for the treatment of myocardial infarction: an update on cardiac tissue engineering and myocardial regeneration. Drug Deliv Transl Res 2020; 9:920-934. [PMID: 30877625 DOI: 10.1007/s13346-019-00627-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Myocardial infarction (MI) remains one of the leading cause of mortality over the world. However, current treatments are more palliative than curative, which only stall the progression of the disease, but not reverse the disease. While stem cells or bioactive molecules therapy is promising, the limited survival and engraftment of bioactive agent due to a hostile environment is a bottleneck for MI treatment. In order to maximize the utility of stem cells and bioactive molecules for myocardial repair and regeneration, various types of biomaterials have been developed. Among them, collagen-based biomaterial is widely utilized for cardiac tissue engineering and regeneration due to its optimal physical and chemical properties. In this review, we summarize the properties of collagen-based biomaterial. Then, we discuss collagen-based biomaterial currently being applied to treat MI alone, or together with stem cells and/or bioactive molecules. Finally, the delivery system of collagen-based biomaterial will also be discussed.
Collapse
Affiliation(s)
- Wei-Qiang Wu
- Department of Cardiology, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan, Shapingba, Chongqing, 400038, China
| | - Song Peng
- Department of Cardiology, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan, Shapingba, Chongqing, 400038, China
| | - Zhi-Yuan Song
- Department of Cardiology, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan, Shapingba, Chongqing, 400038, China.
| | - Shu Lin
- Department of Cardiology, Southwest Hospital, Third Military Medical University (Army Medical University), No. 30 Gaotanyan, Shapingba, Chongqing, 400038, China. .,School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Keiraville, NSW, 2522, Australia.
| |
Collapse
|
23
|
Rodriguez M, Kluge JA, Smoot D, Kluge MA, Schmidt DF, Paetsch CR, Kim PS, Kaplan DL. Fabricating mechanically improved silk-based vascular grafts by solution control of the gel-spinning process. Biomaterials 2020; 230:119567. [PMID: 31761485 PMCID: PMC6942127 DOI: 10.1016/j.biomaterials.2019.119567] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 11/30/2022]
Abstract
There is a large unmet need for off-the-shelf biomaterial options to supplant venous autografts in bypass and reconstructive surgical procedures. Existing graft alternatives formed from non-degradable synthetic polymers are not capable of maintaining long-term patency and are thus not indicated for <6 mm inner diameter bypass procedures. To fill this void, degradable silk-based biomaterials have been proposed that can maintain their mechanical properties (i.e. compliance) while facilitating slow but progressive biomaterial remodeling and host integration mediated by cellular colonization. The goal of the present study was to enhance the porosity of gel-spun silk tubes, to facilitate faster degradation rates and improve cellularity, and thus improve host integration over time in vivo, while maintaining requisite mechanical functions. Silk solutions with a range of molecular weight distributions and, in turn, viscosities were used to generate tubes of varying porosities. A decrease in solution concentration correlated with an increase in mean pore size and overall porosity through a density-dependent mechanism. Tubes were mechanically analyzed, and these properties were the basis of an analytical model used to correlate tube formulations to structural compliance, which were shown to be similar to the saphenous vein. Tubes were also tested for suture retention to ensure surgical utility despite increased porosity. Tubes were implanted in the abdominal aorta of Sprague-Dawley rats via an end-to-end anastomosis model. Tubes with higher porosities showed early improvements in cell colonization that progressively increased over time; conversely, the dense architecture of less porous grafts (20MB) inhibited cell ingrowth and resulted in minimal biomaterial degradation at the 6-month time point. None of the highly porous tubes (5 MB and 10MB) remained patent at 6 months, likely due remodeling inducing bulk mechanical failure or a compromised blood-material interface.
Collapse
Affiliation(s)
- Maria Rodriguez
- Tufts University, Department of Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, USA
| | - Jonathan A Kluge
- Tufts University, Department of Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, USA
| | - Daniel Smoot
- Tufts University, Department of Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, USA
| | - Matthew A Kluge
- Tufts University, Department of Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, USA
| | - Daniel F Schmidt
- Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, 01854, USA; Department of Materials Research & Technology, Luxembourg Institute of Science & Technology, L-4940, Hautcharage, Luxembourg
| | - Christopher R Paetsch
- Tufts University, Department of Civil Engineering, 200 College Avenue, Medford, MA, 02155, USA
| | - Peter S Kim
- Divisions of Plastic Surgery and Otolaryngology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA.
| | - David L Kaplan
- Tufts University, Department of Biomedical Engineering, 4 Colby Street, Medford, MA, 02155, USA.
| |
Collapse
|
24
|
Yan X, Jiang Y, Xu Y, Tan Q. The effect of adipose-derived stem cells in healing refractory wounds based on clinical outcomes. ALL LIFE 2020. [DOI: 10.1080/26895293.2020.1803992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Xin Yan
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People’s Republic of China
| | - Yanan Jiang
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People’s Republic of China
| | - Ye Xu
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People’s Republic of China
| | - Qian Tan
- Department of Burns and Plastic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People’s Republic of China
| |
Collapse
|
25
|
Ghahremani-Nasab M, Ghanbari E, Jahanbani Y, Mehdizadeh A, Yousefi M. Premature ovarian failure and tissue engineering. J Cell Physiol 2019; 235:4217-4226. [PMID: 31663142 DOI: 10.1002/jcp.29376] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/30/2019] [Indexed: 12/30/2022]
Abstract
Premature ovarian failure (POF) usually happens former to the age of 40 and affects the female physiological state premenopausal period. In this condition, ovaries stop working long before the expected menopausal time. Of diagnostic symptoms of the disease, one can mention amenorrhea and hypoestrogenism. The cause of POF in most cases is idiopathic; however, cancer therapy may also cause POF. Commonly utilized therapies such as hormone therapy, in-vitro activation, and regenerative medicine are the most well-known treatments for POF. Hence, these therapies may be associated with some complications. The aim of the present study is to discuss the beneficial effects of tissue engineering for fertility rehabilitation in patients with POF as a newly emerging therapy.
Collapse
Affiliation(s)
- Maryam Ghahremani-Nasab
- Department of Tissue Engineering, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Ghanbari
- Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Yalda Jahanbani
- School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Mehdizadeh
- Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Comprehensive Health Lab, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
26
|
Copes F, Pien N, Van Vlierberghe S, Boccafoschi F, Mantovani D. Collagen-Based Tissue Engineering Strategies for Vascular Medicine. Front Bioeng Biotechnol 2019; 7:166. [PMID: 31355194 PMCID: PMC6639767 DOI: 10.3389/fbioe.2019.00166] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 06/24/2019] [Indexed: 12/21/2022] Open
Abstract
Cardiovascular diseases (CVDs) account for the 31% of total death per year, making them the first cause of death in the world. Atherosclerosis is at the root of the most life-threatening CVDs. Vascular bypass/replacement surgery is the primary therapy for patients with atherosclerosis. The use of polymeric grafts for this application is still burdened by high-rate failure, mostly caused by thrombosis and neointima hyperplasia at the implantation site. As a solution for these problems, the fast re-establishment of a functional endothelial cell (EC) layer has been proposed, representing a strategy of crucial importance to reduce these adverse outcomes. Implant modifications using molecules and growth factors with the aim of speeding up the re-endothelialization process has been proposed over the last years. Collagen, by virtue of several favorable properties, has been widely studied for its application in vascular graft enrichment, mainly as a coating for vascular graft luminal surface and as a drug delivery system for the release of pro-endothelialization factors. Collagen coatings provide receptor-ligand binding sites for ECs on the graft surface and, at the same time, act as biological sealants, effectively reducing graft porosity. The development of collagen-based drug delivery systems, in which small-molecule and protein-based drugs are immobilized within a collagen scaffold in order to control their release for biomedical applications, has been widely explored. These systems help in protecting the biological activity of the loaded molecules while slowing their diffusion from collagen scaffolds, providing optimal effects on the targeted vascular cells. Moreover, collagen-based vascular tissue engineering substitutes, despite not showing yet optimal mechanical properties for their use in the therapy, have shown a high potential as physiologically relevant models for the study of cardiovascular therapeutic drugs and diseases. In this review, the current state of the art about the use of collagen-based strategies, mainly as a coating material for the functionalization of vascular graft luminal surface, as a drug delivery system for the release of pro-endothelialization factors, and as physiologically relevant in vitro vascular models, and the future trend in this field of research will be presented and discussed.
Collapse
Affiliation(s)
- Francesco Copes
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, QC, Canada
- Laboratory of Human Anatomy, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Nele Pien
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, QC, Canada
- Polymer Chemistry & Biomaterials Group, Department of Organic and Macromolecular Chemistry, Centre of Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Department of Organic and Macromolecular Chemistry, Centre of Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Francesca Boccafoschi
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, QC, Canada
- Laboratory of Human Anatomy, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, QC, Canada
| |
Collapse
|
27
|
Kérourédan O, Hakobyan D, Rémy M, Ziane S, Dusserre N, Fricain JC, Delmond S, Thébaud NB, Devillard R. In situ prevascularization designed by laser-assisted bioprinting: effect on bone regeneration. Biofabrication 2019; 11:045002. [PMID: 31151125 DOI: 10.1088/1758-5090/ab2620] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Vascularization plays a crucial role in bone formation and regeneration process. Development of a functional vasculature to improve survival and integration of tissue-engineered bone substitutes remains a major challenge. Biofabrication technologies, such as bioprinting, have been introduced as promising alternatives to overcome issues related to lack of prevascularization and poor organization of vascular networks within the bone substitutes. In this context, this study aimed at organizing endothelial cells in situ, in a mouse calvaria bone defect, to generate a prevascularization with a defined architecture, and promote in vivo bone regeneration. Laser-assisted bioprinting (LAB) was used to pattern Red Fluorescent Protein-labeled endothelial cells into a mouse calvaria bone defect of critical size, filled with collagen containing mesenchymal stem cells and vascular endothelial growth factor. LAB technology allowed safe and controlled in vivo printing of different cell patterns. In situ printing of endothelial cells gave rise to organized microvascular networks into bone defects. At two months, vascularization rate (vr) and bone regeneration rate (br) showed statistically significant differences between the 'random seeding' condition and both 'disc' pattern (vr = +203.6%; br = +294.1%) and 'crossed circle' pattern (vr = +355%; br = +602.1%). These results indicate that in vivo LAB is a valuable tool to introduce in situ prevascularization with a defined configuration and promote bone regeneration.
Collapse
Affiliation(s)
- Olivia Kérourédan
- INSERM, Bioingénierie Tissulaire, U1026, F-33076 Bordeaux, France. Université de Bordeaux, Bioingénierie Tissulaire, U1026, F-33076 Bordeaux, France. CHU de Bordeaux, Services d'Odontologie et de Santé Buccale, F-33076 Bordeaux, France
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Xin L, Lin X, Pan Y, Zheng X, Shi L, Zhang Y, Ma L, Gao C, Zhang S. A collagen scaffold loaded with human umbilical cord-derived mesenchymal stem cells facilitates endometrial regeneration and restores fertility. Acta Biomater 2019; 92:160-171. [PMID: 31075515 DOI: 10.1016/j.actbio.2019.05.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/17/2019] [Accepted: 05/06/2019] [Indexed: 12/19/2022]
Abstract
In women of reproductive age, severe injuries to the endometrium are often accompanied by endometrial scar formation or intrauterine adhesions (IUAs), which can result in infertility or miscarriage. Although many approaches have been used to treat severe IUAs, high recurrence rates and endometrial thinning have limited therapeutic efficiency. In this study, a collagen scaffold (CS) loaded with human umbilical cord-derived mesenchymal stem cells (UC-MSCs) was fabricated and applied for endometrial regeneration. The CS/UC-MSCs promoted human endometrial stromal cell proliferation and inhibited apoptosis in vitro through paracrine effects. In a model of endometrial damage, transplantation with the CS/UC-MSCs maintained normal luminal structure, promoted endometrial regeneration and collagen remodeling, induced intrinsic endometrial cell proliferation and epithelium recovery, and enhanced the expression of estrogen receptor α and progesterone receptor. An improved ability of the regenerated endometrium to receive embryos was confirmed. Together, our results indicate that the CS/UC-MSCs promoted endometrial structural reconstruction and functional recovery. Topical administration of the CS/UC-MSCs after trans-cervical resection of adhesions might prevent re-adhesion, promote endometrium regeneration and improve pregnancy outcomes for patients with severe IUAs. STATEMENT OF SIGNIFICANCE: Intrauterine adhesions due to severe endometrium injuries happen frequently in clinic and become one of the crucial reasons for women's infertility or miscarriage. Therefore, how to regenerate the damaged endometrium is a big challenge. In this study, a collagen scaffold (CS) loaded with human umbilical cord-derived mesenchymal stem cells (UC-MSCs) was fabricated and applied for endometrium regeneration. Herein, UC-MSCs, known for low immunogenicity and high proliferative potential, exhibit promising potential for endometrium regeneration; and collagen scaffolds provide suitable physical support. It was proved that transplantation with CS/UC-MSCs promoted endometrial regeneration and fertility restoration. It suggested that topical administration of CS/UC-MSCs in uterus could be a promising strategy for patients suffering severe intrauterine adhesion and infertility.
Collapse
|
29
|
Injectable Scaffolds Enriched with Silver to Inhibit Bacterial Invasion in Tissue Regeneration. MATERIALS 2019; 12:ma12121931. [PMID: 31208032 PMCID: PMC6631215 DOI: 10.3390/ma12121931] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 01/04/2023]
Abstract
During wound healing, bacterial infections may prolong skin regeneration and tissue repair, causing delayed or incomplete healing. The therapeutic strategies currently used include general therapeutic modes, growth factors, skin substitutes, matrices and/or cell therapy. Among recent technologies, wound dressing materials comprising silver nitrate or silver sulfadiazine as the antimicrobial agent are widespread, despite their known cytotoxicity. The aim of this work was to develop and evaluate the efficacy of gelatinous injectable biomaterials composed of collagen and alginates, enriched with silver against bacterial pathogens commonly involved in wound infections. To reduce cytotoxicity, silver was used as lactate and saccharinated salts. Results show that silver-enriched beads were effective against both Gram-positive and Gram-negative strains in a concentration-dependent manner. Silver addition was more active against Staphylococcusepidermidis than against Pseudomonasaeruginosa. The antibacterial activity was localized only in the area of contact with the beads at concentrations lower than 0.3 mM, whereas at higher concentrations a larger inhibition halo was observed. No cytotoxic effect on eukaryotic cells was seen both testing the materials’ extracts or the Ag-doped beads in contact tests. These results, although preliminary, suggest that these scaffolds are a promising approach for realizing injectable or spreadable functional biomaterials with antibacterial activity for applications in wound management.
Collapse
|
30
|
Xue B, Liu D, Song M, Zhao G, Cao Y, Yan G, Dai J, Hu Y. Leukemia inhibitory factor promotes the regeneration of rat uterine horns with full-thickness injury. Wound Repair Regen 2019; 27:477-487. [PMID: 31107586 DOI: 10.1111/wrr.12729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 05/03/2019] [Accepted: 05/14/2019] [Indexed: 11/28/2022]
Abstract
Severe uterine injuries may lead to infertility or pregnancy complications. There is a lack of effective methods to restore the structure and function of seriously injured uteri. Leukemia inhibitory factor (LIF), which plays a crucial role in blastocyst implantation, promotes the process of regeneration after injury in several different tissues. In this study, we explored the effect of LIF on the regeneration of rat uterine horns following full-thickness injury. One hundred and twenty four female Sprague-Dawley rats were assigned to three groups, including a sham-operated group (n = 34 uterine horns), a PBS/collagen group (n = 90 uterine horns), and a LIF/collagen group (n = 124 uterine horns). The regenerated uterine horns were collected at 1, 2, 4, 8, or 12 weeks after the surgery. The results showed that LIF/collagen scaffolds increased the number of endometrial cells and neovascularization 2 weeks after uterine full-thickness defect in excision sites (p < 0.001 vs PBS/collagen). Eight weeks after the surgery, the number of endometrial glands was dramatically higher in the LIF/collagen scaffolds group (35.2 ± 4.1/field) than in the PBS/collagen scaffolds (15.1 ± 1.4/field). The percentage of a-smooth muscle actin (a-SMA)-positive areas in the LIF/collagen scaffolds (88.8% ± 9.8%) was also significantly higher than that in the PBS/collagen group (52.9% ± 3.7%). Moreover, LIF improved the pregnancy rate and fetus number. We also found that LIF inhibited the infiltration of inflammatory cells and down-regulated the pro-inflammatory cytokine IL-12 expression while up-regulating the anti-inflammatory cytokine IL-10 expression in the injured part of the uterine horns. Our results indicate that LIF promotes regeneration of the uterus after injury, and this is at least partially due to its immunomodulatory properties. In addition, it is worth to explore further the possibility for LIF/collagen to be an alternative therapeutic approach for uterine damage in the clinic in near future.
Collapse
Affiliation(s)
- Bai Xue
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Rd., Nanjing, 210008, China
| | - Dan Liu
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, 210008, China
| | - Minmin Song
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, 210008, China
| | - Guangfeng Zhao
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, 210008, China
| | - Yun Cao
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, 210008, China
| | - Guijun Yan
- Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, 210008, China
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing, 100190, China
| | - Yali Hu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Rd., Nanjing, 210008, China.,Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, 210008, China
| |
Collapse
|
31
|
|
32
|
Wiegand C, Abel M, Hipler UC, Elsner P, Zieger M, Kurz J, Wendel HP, Stoppelkamp S. Hemostatic wound dressings: Predicting their effects by in vitro tests. J Biomater Appl 2019; 33:1285-1297. [PMID: 30791851 DOI: 10.1177/0885328219831095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Application of controlled in vitro techniques can be used as a screening tool for the development of new hemostatic agents allowing quantitative assessment of overall hemostatic potential. MATERIALS AND METHODS Several tests were selected to evaluate the efficacy of cotton gauze, collagen, and oxidized regenerated cellulose for enhancing blood clotting, coagulation, and platelet activation. RESULTS Visual inspection of dressings after blood contact proved the formation of blood clots. Scanning electron microscopy demonstrated the adsorption of blood cells and plasma proteins. Significantly enhanced blood clot formation was observed for collagen together with β-thromboglobulin increase and platelet count reduction. Oxidized regenerated cellulose demonstrated slower clotting rates not yielding any thrombin generation; yet, led to significantly increased thrombin-anti-thrombin-III complex levels compared to the other dressings. As hemostyptica ought to function without triggering any adverse events, induction of hemolysis, instigation of inflammatory reactions, and initiation of the innate complement system were also tested. Here, cotton gauze provoked high PMN elastase and elevated SC5b-9 concentrations. CONCLUSIONS A range of tests for desired and undesired effects of materials need to be combined to gain some degree of predictability of the in vivo situation. Collagen-based dressings demonstrated the highest hemostyptic properties with lowest adverse reactions whereas gauze did not induce high coagulation activation but rather activated leukocytes and complement.
Collapse
Affiliation(s)
- Cornelia Wiegand
- 1 Department of Dermatology, University Hospital Jena, Jena, Germany
| | - Martin Abel
- 2 Lohmann & Rauscher GmbH & Co. KG, Neuwied, Germany
| | | | - Peter Elsner
- 1 Department of Dermatology, University Hospital Jena, Jena, Germany
| | | | - Julia Kurz
- 4 Department of Thoracic, Cardiac and Vascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| | - Hans P Wendel
- 4 Department of Thoracic, Cardiac and Vascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| | - Sandra Stoppelkamp
- 4 Department of Thoracic, Cardiac and Vascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| |
Collapse
|
33
|
Jin Y, Chai W, Huang Y. Fabrication of Stand-Alone Cell-Laden Collagen Vascular Network Scaffolds Using Fugitive Pattern-Based Printing-Then-Casting Approach. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28361-28371. [PMID: 30048116 DOI: 10.1021/acsami.8b09177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Vascular networks are of great significance in tissue engineering and viewed as the first step to fabricate human tissues. Although various techniques have been investigated to create vascular and vascular-like networks, the fabrication of stand-alone pure collagen-based vascular constructs is still a challenge because of the poor extrudability, weak mechanical property, and long cross-linking time of pure collagen solutions. In this study, a fugitive pattern-based printing-then-casting approach is investigated. The proposed alginate-based fugitive ink has excellent mechanical strength (by adding Laponite nanoclay), printability (by adding Laponite nanoclay), and controllable gelation rate (by adding disodium hydrogen phosphate). Using this fugitive ink, complex vascular-like structures can be easily printed and cross-linked in Laponite EP bath as fugitive vascular tree patterns. Each fugitive vascular tree pattern is then embedded in a gelatin bath to make a gelatin mold with the tree patterns. With the help of sodium citrate, the fugitive vascular tree pattern is liquefied and removed to create the gelatin mold with vascular channels. Finally, a stand-alone collagen vascular network scaffold embedded with fibroblasts can be fabricated by casting the cell-laden collagen suspension into the gelatin mold and releasing it from the mold at 37 °C. The cell-related investigations indicate that the cells grow and spread well in the pure collagen vascular network scaffold. The proposed hybrid printing-then-casting approach also provides a feasible technology to fabricate with materials having low viscosity, long gelation time, and poor mechanical property.
Collapse
|
34
|
Kozlowska J, Stachowiak N, Sionkowska A. Collagen/Gelatin/Hydroxyethyl Cellulose Composites Containing Microspheres Based on Collagen and Gelatin: Design and Evaluation. Polymers (Basel) 2018; 10:E456. [PMID: 30966491 PMCID: PMC6415228 DOI: 10.3390/polym10040456] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 11/16/2022] Open
Abstract
The objective of this study was to develop three-dimensional collagen/gelatin/hydroxyethyl cellulose composites in combination with gelatin or collagen-gelatin loaded microspheres. Microspheres were prepared by an emulsification/crosslinking method. A 1-Ethyl-3-(3-dimethyl-aminopropyl)-carbodiimide (EDC) and N-hydroxysuccinimide (NHS) mixture were used as a crosslinking agent for the obtained materials. The structure of the materials was studied using scanning electron microscopy (SEM) and infrared spectroscopy. Moreover, a Calendula officinalis (pot marigold) flower extract release profile of the microsphere-loaded matrices was assessed in vitro. Additionally, porosity, density, stability, swelling and mechanical properties were tested. On the basis of SEM images, the microspheres exhibited a spherical shape and were irregularly dispersed in the polymer matrix. However, it was found that the addition of microparticles to obtained materials did not significantly change their microstructure. We observed a slight decrease in the swelling properties of matrices and an increase in values of Young's modulus. Significantly, the addition of microspheres to the polymer matrices led to improved loading capacity of materials and release performance of Calendula officinalis flower extract. This makes the collagen/gelatin/hydroxyethyl cellulose composites containing microspheres a promising and suitable vehicle for biomedical, dermatological, or cosmetic applications.
Collapse
Affiliation(s)
- Justyna Kozlowska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
| | - Natalia Stachowiak
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
| | - Alina Sionkowska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland.
| |
Collapse
|
35
|
Amer MH, Rose FRAJ, Shakesheff KM, White LJ. A biomaterials approach to influence stem cell fate in injectable cell-based therapies. Stem Cell Res Ther 2018; 9:39. [PMID: 29467014 PMCID: PMC5822649 DOI: 10.1186/s13287-018-0789-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/16/2018] [Accepted: 01/23/2018] [Indexed: 12/14/2022] Open
Abstract
Background Numerous stem cell therapies use injection-based administration to deliver high-density cell preparations. However, cell retention rates as low as 1% have been observed within days of transplantation. This study investigated the effects of varying administration and formulation parameters of injection-based administration on cell dose recovery and differentiation fate choice of human mesenchymal stem cells. Methods The impact of ejection rate via clinically relevant Hamilton micro-syringes and biomaterial-assisted delivery was investigated. Cell viability, the percentage of cell dose delivered as viable cells, proliferation capacity as well as differentiation behaviour in bipotential media were assessed. Characterisation of the biomaterial-based cell carriers was also carried out. Results A significant improvement of in-vitro dose recovery in cells co-ejected with natural biomaterials was observed, with ejections within 2% (w/v) gelatin resulting in 87.5 ± 14% of the cell dose being delivered as viable cells, compared to 32.2 ± 19% of the dose ejected in the commonly used saline vehicle at 10 μl/min. Improvement in cell recovery was not associated with the rheological properties of biomaterials utilised, as suggested by previous studies. The extent of osteogenic differentiation was shown to be substantially altered by choice of ejection rate and cell carrier, despite limited contact time with cells during ejection. Collagen type I and bone-derived extracellular matrix cell carriers yielded significant increases in mineralised matrix deposited at day 21 relative to PBS. Conclusions An enhanced understanding of how administration protocols and biomaterials influence cell recovery, differentiation capacity and choice of fate will facilitate the development of improved administration and formulation approaches to achieve higher efficacy in stem cell transplantation. Electronic supplementary material The online version of this article (10.1186/s13287-018-0789-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Mahetab H Amer
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Felicity R A J Rose
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Kevin M Shakesheff
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Lisa J White
- Centre for Biomolecular Sciences, School of Pharmacy, University of Nottingham, Nottingham, UK.
| |
Collapse
|
36
|
Abstract
Background Engineered heart tissues (EHTs) present a promising alternative to current materials for surgical ventricular restoration (SVR); however, the clinical application remains limited by inadequate vascularization postimplantation. Moreover, a suitable and economic animal model for primary screening is another important issue. Methods Recently, we used 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride chemistry (EDC) to initiate a strengthened, cytokine-conjugated collagenous platform with a controlled degradation speed. In vitro, the biomaterial exhibited an enhanced mechanical strength maintaining a porous ultrastructure, and the constant release of cytokines promoted the proliferation of seeded human mesenchymal stem cells (hMSCs). In vivo, with the hMSC-seeded, cytokine-immobilized patch (MSCs + GF patch), we performed modified SVR for rats with left ventricular aneurysm postmyocardial infarction (MI). Overall, the rats that underwent modified SVR lost less blood and had lower mortality. After 4 weeks, the rats repaired with this cell-seeded, cytokine-immobilized patch presented preserved cardiac function, beneficial morphology, enhanced cell infiltration, and functional vessel formation compared with the cytokine-free (MSC patch), cell-free (GF patch), or blank controls (EDC patch). Furthermore, the degradable period of the collagen patch in vivo extended up to 3 months after EDC treatment. Conclusions EDC may substantially modify collagen scaffold and provide a promising and practical biomaterial for SVR.
Collapse
|
37
|
Grimmer P, Notbohm J. Displacement Propagation in Fibrous Networks Due to Local Contraction. J Biomech Eng 2018; 140:2666617. [DOI: 10.1115/1.4038744] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 01/27/2023]
Abstract
The extracellular matrix provides macroscale structure to tissues and microscale guidance for cell contraction, adhesion, and migration. The matrix is composed of a network of fibers, which each deform by stretching, bending, and buckling. Whereas the mechanics has been well characterized in uniform shear and extension, the response to more general loading conditions remains less clear, because the associated displacement fields cannot be predicted a priori. Studies simulating contraction, such as due to a cell, have observed displacements that propagate over a long range, suggesting mechanisms such as reorientation of fibers toward directions of tensile force and nonlinearity due to buckling of fibers under compression. It remains unclear which of these two mechanisms produces the long-range displacements and how properties like fiber bending stiffness and fiber length affect the displacement field. Here, we simulate contraction of an inclusion within a fibrous network and fit the resulting radial displacements to ur ∼ r−n where the power n quantifies the decay of displacements over distance, and a value of n less than that predicted by classical linear elasticity indicates displacements that propagate over a long range. We observed displacements to propagate over a longer range for greater contraction of the inclusion, for networks having longer fibers, and for networks with lower fiber bending stiffness. Contraction of the inclusion also caused fibers to reorient into the radial direction, but, surprisingly, the reorientation was minimally affected by bending stiffness. We conclude that both reorientation and nonlinearity are responsible for the long-range displacements.
Collapse
Affiliation(s)
- Peter Grimmer
- Department of Engineering Physics, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706 e-mail:
| | - Jacob Notbohm
- Department of Engineering Physics, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706 e-mail:
| |
Collapse
|
38
|
Maisani M, Ziane S, Ehret C, Levesque L, Siadous R, Le Meins J, Chevallier P, Barthélémy P, De Oliveira H, Amédée J, Mantovani D, Chassande O. A new composite hydrogel combining the biological properties of collagen with the mechanical properties of a supramolecular scaffold for bone tissue engineering. J Tissue Eng Regen Med 2017; 12:e1489-e1500. [DOI: 10.1002/term.2569] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 07/18/2017] [Accepted: 08/25/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Mathieu Maisani
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
- Lab. for Biomaterials & Bioengineering (CRC‐I), Dept. Min‐Met‐Materials Engineering & Research Center CHU de QuébecLaval University Québec City Canada
| | - Sophia Ziane
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
| | - Camille Ehret
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
| | - Lucie Levesque
- Lab. for Biomaterials & Bioengineering (CRC‐I), Dept. Min‐Met‐Materials Engineering & Research Center CHU de QuébecLaval University Québec City Canada
| | - Robin Siadous
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
| | - Jean‐François Le Meins
- Laboratoire de Chimie des Polymères Organiques LCPO (UMR5629)‐Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)Institut Polytechnique de Bordeaux Talence France
| | - Pascale Chevallier
- Lab. for Biomaterials & Bioengineering (CRC‐I), Dept. Min‐Met‐Materials Engineering & Research Center CHU de QuébecLaval University Québec City Canada
| | | | - Hugo De Oliveira
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
| | - Joëlle Amédée
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
| | - Diego Mantovani
- Lab. for Biomaterials & Bioengineering (CRC‐I), Dept. Min‐Met‐Materials Engineering & Research Center CHU de QuébecLaval University Québec City Canada
| | - Olivier Chassande
- Laboratoire BIOTIS, Inserm U1026Université de Bordeaux Bordeaux France
| |
Collapse
|
39
|
Xu L, Ding L, Wang L, Cao Y, Zhu H, Lu J, Li X, Song T, Hu Y, Dai J. Umbilical cord-derived mesenchymal stem cells on scaffolds facilitate collagen degradation via upregulation of MMP-9 in rat uterine scars. Stem Cell Res Ther 2017; 8:84. [PMID: 28420433 PMCID: PMC5395893 DOI: 10.1186/s13287-017-0535-0] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 03/02/2017] [Accepted: 03/14/2017] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Severe injuries of the uterus may trigger uterine scar formation, ultimately leading to infertility or obstetrical complications. To date, few methods have adequately solved the problem of collagen deposition in uterine scars. Umbilical cord-derived mesenchymal stem cells (UC-MSCs) have shown great promise in clinical applications. The objective of this study was to investigate the effect of a scaffold/UC-MSCs construct on collagen degradation and functional regeneration in rat uterine scars following full-thickness excision of uterine walls. METHODS In order to establish a rat model of uterine scars, the uterine wall of approximately 1.0 cm in length and 0.5 cm in width (one-third of the uterine circumference) was excised from each uterine horn. A total of 128 scarred uterine horns from 64 rats were randomly assigned to four groups, including a PBS group (n = 32 uterine horns), scaffold group (n = 32 uterine horns), UC-MSCs group (n = 32 uterine horns) and scaffold/UC-MSCs group (n = 32 uterine horns) to investigate the effect of different treatments on the structure and function of uterine scars. PBS, degradable collagen fibres, UC-MSCs or UC-MSCs mixed with gelatinous degradable collagen fibres were injected into four pre-marked points surrounding each uterine scar, respectively. At days 30 and 60 post-transplantation, a subset of rats (n = 8 uterine horns) from each group was euthanized and serial sections of uterine tissues containing the operative region were prepared. Haematoxylin-eosin staining, Masson's trichrome staining, and immunohistochemical staining for MMP-2, MMP-9, α-SMA and vWF were performed. Finally, another subset of rats (n = 16 uterine horns) from each group was mated with male rats at day 60 post-transplantation and euthanized 18 days after the presence of vaginal plugs to check numbers, sizes and weights of fetuses, as well as sites of implantation. RESULTS The scaffold/UC-MSCs group exhibited obvious collagen degradation compared with the other three groups. At day 60 post-transplantation, the number of MMP-9-positive cells in the scaffold/UC-MSCs group (25.96 ± 3.63) was significantly higher than that in the PBS group (8.19 ± 1.61, P < 0.01), the scaffold group (7.25 ± 2.17, P < 0.01) and the UC-MSCs group (8.31 ± 2.77, P < 0.01). The pregnancy rate in the scaffold/UC-MSCs group (10/16) was also significantly higher than that in the PBS group (2/16, P < 0.017), the scaffold group (1/16, P < 0.017) and the UC-MSCs group (3/16, P < 0.017). CONCLUSIONS The scaffold/UC-MSCs system facilitated collagen degradation in uterine scars via upregulation of MMP-9, which was secreted by transplanted UC-MSCs, and promoted regeneration of the endometrium, myometrium and blood vessels in uterine scars. Furthermore, the scaffold/UC-MSCs-treated uterine scars showed nearly complete restoration of receptive fertility.
Collapse
Affiliation(s)
- Lu Xu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Lijun Ding
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Lei Wang
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Yun Cao
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Hui Zhu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Jingjie Lu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Xin’an Li
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Tianran Song
- Department of Obstetrics and Gynecology, the Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008 China
| | - Yali Hu
- Department of Obstetrics and Gynecology, Drum Tower Clinical Medical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing, 210008 China
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing, 100190 China
| |
Collapse
|
40
|
Maisani M, Pezzoli D, Chassande O, Mantovani D. Cellularizing hydrogel-based scaffolds to repair bone tissue: How to create a physiologically relevant micro-environment? J Tissue Eng 2017; 8:2041731417712073. [PMID: 28634532 PMCID: PMC5467968 DOI: 10.1177/2041731417712073] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/26/2017] [Indexed: 12/16/2022] Open
Abstract
Tissue engineering is a promising alternative to autografts or allografts for the regeneration of large bone defects. Cell-free biomaterials with different degrees of sophistication can be used for several therapeutic indications, to stimulate bone repair by the host tissue. However, when osteoprogenitors are not available in the damaged tissue, exogenous cells with an osteoblast differentiation potential must be provided. These cells should have the capacity to colonize the defect and to participate in the building of new bone tissue. To achieve this goal, cells must survive, remain in the defect site, eventually proliferate, and differentiate into mature osteoblasts. A critical issue for these engrafted cells is to be fed by oxygen and nutrients: the transient absence of a vascular network upon implantation is a major challenge for cells to survive in the site of implantation, and different strategies can be followed to promote cell survival under poor oxygen and nutrient supply and to promote rapid vascularization of the defect area. These strategies involve the use of scaffolds designed to create the appropriate micro-environment for cells to survive, proliferate, and differentiate in vitro and in vivo. Hydrogels are an eclectic class of materials that can be easily cellularized and provide effective, minimally invasive approaches to fill bone defects and favor bone tissue regeneration. Furthermore, by playing on their composition and processing, it is possible to obtain biocompatible systems with adequate chemical, biological, and mechanical properties. However, only a good combination of scaffold and cells, possibly with the aid of incorporated growth factors, can lead to successful results in bone regeneration. This review presents the strategies used to design cellularized hydrogel-based systems for bone regeneration, identifying the key parameters of the many different micro-environments created within hydrogels.
Collapse
Affiliation(s)
- Mathieu Maisani
- Laboratory for Biomaterials & Bioengineering (CRC-I), Department Min-Met-Materials Engineering & Research Center CHU de Québec, Laval University, Québec City, QC, Canada
- Laboratoire BioTis, Inserm U1026, Université de Bordeaux, Bordeaux, France
| | - Daniele Pezzoli
- Laboratory for Biomaterials & Bioengineering (CRC-I), Department Min-Met-Materials Engineering & Research Center CHU de Québec, Laval University, Québec City, QC, Canada
| | - Olivier Chassande
- Laboratoire BioTis, Inserm U1026, Université de Bordeaux, Bordeaux, France
| | - Diego Mantovani
- Laboratory for Biomaterials & Bioengineering (CRC-I), Department Min-Met-Materials Engineering & Research Center CHU de Québec, Laval University, Québec City, QC, Canada
| |
Collapse
|
41
|
Loy C, Lainé A, Mantovani D. Rotation-based technique for the rapid densification of tubular collagen gel scaffolds. Biotechnol J 2016; 11:1673-1679. [DOI: 10.1002/biot.201600268] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 10/07/2016] [Accepted: 10/11/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Caroline Loy
- Laboratory for Biomaterials & Bioengineering, CRC-1, Department of Mines-Metallurgy-Materials Engineering & the CHU de Québec Research Center; Laval University; Québec, QC Canada
| | - Audrey Lainé
- Laboratory for Biomaterials & Bioengineering, CRC-1, Department of Mines-Metallurgy-Materials Engineering & the CHU de Québec Research Center; Laval University; Québec, QC Canada
| | - Diego Mantovani
- Laboratory for Biomaterials & Bioengineering, CRC-1, Department of Mines-Metallurgy-Materials Engineering & the CHU de Québec Research Center; Laval University; Québec, QC Canada
| |
Collapse
|
42
|
Gao Y, Yi T, Shinoka T, Lee YU, Reneker DH, Breuer CK, Becker ML. Pilot Mouse Study of 1 mm Inner Diameter (ID) Vascular Graft Using Electrospun Poly(ester urea) Nanofibers. Adv Healthc Mater 2016; 5:2427-36. [PMID: 27390286 PMCID: PMC5951289 DOI: 10.1002/adhm.201600400] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/30/2016] [Indexed: 12/13/2022]
Abstract
An off-the-shelf, small diameter tissue engineered vascular graft (TEVG) would be transformative to surgeons in multiple subspecialties. Herein, the results of a small diameter (ID ≈ 1 mm) vascular graft constructed from resorbable, amino acid-based poly(ester urea) (PEU) are reported. Electrospun PEU grafts of two different wall thicknesses (type A: 250 μm; type B: 350 μm) are implanted as abdominal infra-renal aortic grafts in a severe combined immune deficient/beige mouse model and evaluated for vessel remodeling over one year. Significantly, the small diameter TEVG does not rupture or lead to acute thrombogenic events during the intervals tested. The pilot TEVG in vivo shows long-term patency and extensive tissue remodeling with type A grafts. Extensive tissue remodeling in type A grafts leads to the development of well-circumscribed neovessels with an endothelial inner lining, a neointima containing smooth muscle cells. However, due to slow degradation of the PEU scaffold materials in vivo, the grafts remain after one year. The type B grafts, which have 350 μm thick walls, experience occlusion over the one year interval due to intimal hyperplasia. This study affords significant findings that will guide the design of future generations of small diameter vascular grafts.
Collapse
Affiliation(s)
- Yaohua Gao
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Tai Yi
- Department of Surgery, Nationwide Children's Hospital, Columbus, OH, 43205, USA
| | - Toshiharu Shinoka
- Department of Surgery, Nationwide Children's Hospital, Columbus, OH, 43205, USA
| | - Yong Ung Lee
- Department of Surgery, Nationwide Children's Hospital, Columbus, OH, 43205, USA
| | - Darrell H Reneker
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | | | - Matthew L Becker
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA.
| |
Collapse
|
43
|
Hiob MA, She S, Muiznieks LD, Weiss AS. Biomaterials and Modifications in the Development of Small-Diameter Vascular Grafts. ACS Biomater Sci Eng 2016; 3:712-723. [DOI: 10.1021/acsbiomaterials.6b00220] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matti A. Hiob
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
| | - Shelley She
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
| | - Lisa D. Muiznieks
- Molecular Structure and Function Program, Research Institute, Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G1X8, Canada
| | - Anthony S. Weiss
- School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006, Australia
- Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| |
Collapse
|
44
|
Yun JW, Kim YY, Ahn JH, Kang BC, Ku SY. Use of nonhuman primates for the development of bioengineered female reproductive organs. Tissue Eng Regen Med 2016; 13:323-334. [PMID: 30603414 DOI: 10.1007/s13770-016-9091-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 11/13/2015] [Accepted: 12/09/2015] [Indexed: 01/02/2023] Open
Abstract
Nonhuman primates (NHPs) have been widely used in reproductive biology, neuroscience, and drug development since a number of primate species are phylogenetically close to humans. In this review, we summarize the use of NHPs for nonclinical application in the reproductive system disorders including the loss or failure of an organ or tissue. Causes of infertility include congenital aplasia and acquired disorders of the reproductive organs. In addition, anti-cancer treatments can deplete ovarian follicles, leading to premature ovarian failure, infertility and long-term health risks. Along with a limited supply of human reproductive organs, anatomic/physiologic similarities to humans support the need for NHP models (New-World monkeys such as the common marmoset and Old-World monkeys such as cynomolgus and rhesus monkeys) to promote the advances in female infertility studies. For maintaining and executing animal studies using NHP, special protocols including animal care, anesthetic protocol, surgical technique, and immunosuppressive protocol are necessary. With a growing interest in the potential therapies such as endometrial tissue engineering, and ovary/follicle cryopreservation and grafting in Korea, this review can be useful in selecting appropriate animal models and can bridge between nonclinical studies and clinical applications by providing detailed information on the use of NHPs in the field of reproductive organ disorders.
Collapse
Affiliation(s)
- Jun-Won Yun
- 1Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Yoon Young Kim
- 2Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Hun Ahn
- 1Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea.,3Graduate School of Translational Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Byeong-Cheol Kang
- 1Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea.,3Graduate School of Translational Medicine, Seoul National University College of Medicine, Seoul, Korea.,4Designed Animal Research Center, Institute of GreenBio Science Technology, Seoul National University, Pyeongchang, Korea.,5Biomedical Center for Animal Resource and Development, N-BIO, Seoul National University, Seoul, Korea.,6Department of Obstetrics and Gynecology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080 Korea
| | - Seung-Yup Ku
- 2Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.,7Graduate School of Translational Medicine, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080 Korea
| |
Collapse
|
45
|
Haghjooy Javanmard S, Anari J, Zargar Kharazi A, Vatankhah E. In vitro hemocompatibility and cytocompatibility of a three-layered vascular scaffold fabricated by sequential electrospinning of PCL, collagen, and PLLA nanofibers. J Biomater Appl 2016; 31:438-49. [PMID: 27247131 DOI: 10.1177/0885328216652068] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Aiming to mimic a blood vessel structurally, morphologically, and mechanically, a sequential electrospinning technique using a small diameter mandrel collector was performed and a three-layered tubular scaffold composed of nanofibers of polycaprolactone, collagen, and poly(l-lactic acid) as inner, intermediate, and outer layers, respectively, was developed. Biological performances of the scaffold in terms of compatibility with blood and endothelial cells were assessed to get some insights into its potential use as a tissue engineered small-diameter vascular replacement compared to an expanded polytetrafluoroethylene vascular graft. Due to direct contact of the blood and endothelial cells with inner surface of the scaffold, polycaprolactone fibers were characterized using SEM, water contact angle measurement, and ATR-FTIR. Despite similar surface wettability of the electrospun scaffold and the expanded polytetrafluoroethylene graft, the three-layered scaffold significantly reduced platelet adhesion and hemolysis ratio compared to expanded polytetrafluoroethylene graft while comparable blood clotting profiles were observed for both electrospun scaffold and expanded polytetrafluoroethylene graft. However, inflammatory response to nanofibrous surface of the scaffold was reduced compared to expanded polytetrafluoroethylene graft. The electrospun scaffold also presented a significantly more supportive substrate for endothelialization than the expanded polytetrafluoroethylene graft. The results described herein suggested that the three-layered scaffold has superior biological properties compared to an expanded polytetrafluoroethylene graft for vascular tissue engineering.
Collapse
Affiliation(s)
- Shaghayegh Haghjooy Javanmard
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jamal Anari
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Department of Biomaterials, School of Advanced Medical Technology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Vatankhah
- Department of Cellulose and Paper Technology, Faculty of New Technologies and Energy Engineering, Shahid Beheshti University, Zirab Campus, Mazandaran, Iran
| |
Collapse
|
46
|
Sun H, Wang J, Deng F, Liu Y, Zhuang X, Xu J, Li L. Co‑delivery and controlled release of stromal cell‑derived factor‑1α chemically conjugated on collagen scaffolds enhances bone morphogenetic protein‑2‑driven osteogenesis in rats. Mol Med Rep 2016; 14:737-45. [PMID: 27220358 PMCID: PMC4918613 DOI: 10.3892/mmr.2016.5339] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 04/12/2016] [Indexed: 01/03/2023] Open
Abstract
There has been considerable focus in investigations on the delivery systems and clinical applications of bone morphogenetic protein-2 (BMP-2) for novel bone formation. However, current delivery systems require high levels of BMP-2 to exert a biological function. There are several concerns in using of high levels of BMP-2, including safety and the high cost of treatment. Therefore, the development of strategies to decrease the levels of BMP-2 required in these delivery systems is required. In our previous studies, a controlled-release system was developed, which used Traut's reagent and the cross-linker, 4-(N-maleimi-domethyl) cyclohexane-1-carboxylic acid 3-sulfo-N-hydroxysuccinimide ester sodium salt (Sulfo-SMCC), to chemically conjugate BMP-2 directly on collagen discs. In the current study, retention efficiency and release kinetics of stromal cell-derived factor-1α (SDF-1α) cross-linked on collagen scaffolds were detected. In addition, the osteogenic activity of SDF-1α and suboptimal doses of BMP-2 cross-linked on collagen discs following subcutaneous implantation in rats were evaluated. Independent two-tailed t-tests and one-way analysis of variance were used for analysis. In the present study, the controlled release of SDF-1α chemically conjugated on collagen scaffolds was demonstrated. By optimizing the concentrations of Traut's reagent and the Sulfo-SMCC cross-linker, a significantly higher level of SDF-1α was covalently retained on the collagen scaffold, compared with that retained using a physical adsorption method. Mesenchymal stem cell homing indicated that the biological function of the SDF-1α cross-linked on the collagen scaffolds remained intact. In rats, co-treatment with SDF-1α and a suboptimal dose of BMP-2 cross-linked on collagen scaffolds using this chemically conjugated method induced higher levels of ectopic bone formation, compared with the physical adsorption method. No ectopic bone formation was observed following treatment with a suboptimal dose of BMP-2 alone. Therefore, the co-delivery of SDF-1α and a suboptimal dose of BMP-2 chemically conjugated on collagen scaffolds for the treatment of bone injuries reduced the level of BMP-2 required, reducing the risks of side effects.
Collapse
Affiliation(s)
- Haipeng Sun
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Jinming Wang
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Feilong Deng
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yun Liu
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Xiumei Zhuang
- Department of Oral Implantology, Sun Yat‑Sen Memorial Hospital, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Jiayun Xu
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Long Li
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| |
Collapse
|
47
|
Hamilton C, Callanan A. Secreted Endothelial Cell Factors Immobilized on Collagen Scaffolds Enhance the Recipient Endothelial Cell Environment. Biores Open Access 2016; 5:61-71. [PMID: 27057474 PMCID: PMC4817599 DOI: 10.1089/biores.2016.0003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Strategies to design novel vascular scaffolds are a continuing aim in tissue engineering and often such designs encompass the use of recombinant factors to enhance the performance of the scaffold. The established use of cell secretion utilized in feeder systems and conditioned media offer a source of paracrine factors, which has potential to be used in tissue-engineered (TE) scaffolds. Here we utilize this principle from endothelial cells (ECs), to create a novel TE scaffold by harnessing secreted factors and immobilizing these to collagen scaffolds. This research revealed increased cellular attachment and positive angiogenic gene upregulation responses in recipient ECs grown on these conditioned scaffolds. Also, the conditioning method did not affect the mechanical structural integrity of the scaffolds. These results may advocate the potential use of this system to improve vascular scaffolds' in vivo performance. In addition, this process may be a future method utilized to improve other tissue engineering scaffold therapies.
Collapse
Affiliation(s)
- Charlotte Hamilton
- Institute of Bioengineering, The University of Edinburgh , The King's Buildings, Edinburgh, United Kingdom
| | - Anthony Callanan
- Institute of Bioengineering, The University of Edinburgh , The King's Buildings, Edinburgh, United Kingdom
| |
Collapse
|
48
|
Bono N, Pezzoli D, Levesque L, Loy C, Candiani G, Fiore GB, Mantovani D. Unraveling the role of mechanical stimulation on smooth muscle cells: A comparative study between 2D and 3D models. Biotechnol Bioeng 2016; 113:2254-63. [PMID: 26987444 DOI: 10.1002/bit.25979] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/01/2016] [Accepted: 03/09/2016] [Indexed: 01/08/2023]
Abstract
A thorough understanding of cell response to combined culture configuration and mechanical cues is of paramount importance in vascular tissue engineering applications. Herein, we investigated and compared the response of vascular smooth muscle cells (vSMCs) cultured in different culture environments (2D cell monolayers and 3D cellularized collagen-based gels) in combination with mechanical stimulation (7% uniaxial cyclic strain, 1 Hz) for 2 and 5 days. When cyclic strain was applied, two different responses, in terms of cell orientation and expression of contractile-phenotype proteins, were observed in 2D and 3D models. Specifically, in 2D configuration, cyclic strain caused ∼50% of cell population to align nearly perpendicular (80-90 degrees) to the strain direction, while not influencing the contractile-phenotype protein expression, as compared to the 2D static controls. Conversely, the application of uniaxial strain to 3D constructs induced a ∼60% cell alignment almost parallel (0-10 degrees) to the strain direction. Moreover, 3D mechanical stimulation applied for 5 days induced a twofold increase of SM α-actin level and a 14-fold increase of calponin expression as compared to 3D static controls. Altogether these findings provide a new insight into the potential to drive cell behavior by modulating the extracellular matrix and the biomechanical environment. Biotechnol. Bioeng. 2016;113: 2254-2263. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- N Bono
- μBS Lab, Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.,Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials and CHU de Québec Research Center, Laval University, Quebec City, QC, Canada
| | - D Pezzoli
- Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials and CHU de Québec Research Center, Laval University, Quebec City, QC, Canada
| | - L Levesque
- Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials and CHU de Québec Research Center, Laval University, Quebec City, QC, Canada
| | - C Loy
- Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials and CHU de Québec Research Center, Laval University, Quebec City, QC, Canada
| | - G Candiani
- BioCell, Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milan, Italy
| | - G B Fiore
- μBS Lab, Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - D Mantovani
- Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials and CHU de Québec Research Center, Laval University, Quebec City, QC, Canada.
| |
Collapse
|
49
|
Su J, Ding L, Cheng J, Yang J, Li X, Yan G, Sun H, Dai J, Hu Y. Transplantation of adipose-derived stem cells combined with collagen scaffolds restores ovarian function in a rat model of premature ovarian insufficiency. Hum Reprod 2016; 31:1075-86. [PMID: 26965432 DOI: 10.1093/humrep/dew041] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 01/25/2016] [Indexed: 12/16/2022] Open
Abstract
STUDY QUESTION Does the transplantation of adipose-derived stem cells (ADSCs) on soluble collagen scaffolds (collagen/ADSCs) have better therapeutic effect than transplantation of ADSCs alone, to treat premature ovarian insufficiency (POI) in a rat model induced by Tripterygium Glycosides (TG)? SUMMARY ANSWER The transplantation of collagen/ADSCs increased the short-term retention of ADSCs in ovaries and contributed to long-term restoration of ovarian function, as well as the fertility of rats with TG-induced ovarian damage. WHAT IS KNOWN ALREADY About 50% of young women in China, who have been treated with TG, have subsequently developed ovarian insufficiency. Rats exhibit similar symptoms to these patients when given an equivalent dose of TG. Transplantation of ADSCs improves ovarian function impaired by chemotherapy in rodent models. STUDY DESIGN, SIZE, DURATION After the administration of TG, 54 POI model rats were randomly assigned to 4 groups: phosphate buffered saline (PBS) ( ITALIC! n = 14), collagen ( ITALIC! n = 11), ADSCs ( ITALIC! n = 16) and collagen/ADSCs ( ITALIC! n = 13). Seventeen normal rats were assigned as control group. The retention of ADSCs in ovaries was confirmed immediately or at 3, 7, 14 and 28 days after transplantation ( ITALIC! n = 9). Four weeks after transplantation, ovarian function was evaluated from estrous cycle, estradiol level, the follicle number, granulosa cell proliferation and a fertility test. PARTICIPANTS/MATERIALS, SETTING, METHODS To establish the POI model, rats were administered 60 mg TG/kg/day intragastrically for 50 days. The estrous cycles were assessed by vaginal smear. The concentration of plasma estradiol in diestrus stage was measured using a radioimmunoassay kit. Disordered estrous cycles and low serum estradiol levels indicated the successful establishment of the POI model. Four types of suspensions (PBS, collagen, ADSCs and collagen/ADSCs) were transplanted directly into the core of the ovaries. The short-term retention of ADSCs in ovaries was evaluated by small-animal positron emission tomography images immediately after transplantation of (18)F-Fluorodeoxyglucose ((18)F-FDG) labeled ADSCs. The long-term retention of ADSCs in ovaries was observed by immunohistochemistry after transplantation of green fluorescent protein (GFP)-labeled ADSCs. Serial sections of ovaries were prepared for histological analysis, follicle counting, and immunohistochemistry for Ki67 and Cleaved-Caspase-3. For the assessment of fertility, rats were mated with proven fertile male rats for 10 days. MAIN RESULTS AND THE ROLE OF CHANCE The (18)F-FDG signal decreased more slowly in ovaries injected with collagen/ADSCs than in ovaries with injected with ADSCs alone. Significantly more GFP-positive cells were observed in ovaries injected with collagen/GFP-ADSCs than in ovaries injected with GFP-ADSCs alone up to 14 days after the injection. However, in both groups very few GFP-positive cells were present at 4 weeks after transplantation. The collagen/ADSCs and ADSCs groups both showed better estrous cycle recovery than the PBS and collagen groups. The estradiol (E2) level in the collagen/ADSCs group was significantly increased compared with that of the PBS group ( ITALIC! P < 0.05). The number of antral follicles in the collagen/ADSCs group and the ADSCs group significantly increased compared with the PBS group ( ITALIC! P < 0.05). The granulosa cell proliferation in the collagen/ADSCs group was better than in the PBS group ( ITALIC! P < 0.01). The mating rates of the collagen/ADSCs group (88.9%) and the ADSCs group (90.9%) were higher than that of PBS group (60%, ITALIC! P < 0.05). The pregnancy rates of the collagen/ADSCs group (77.8%) and the ADSCs group (72.7%) were higher than the PBS group (50%, ITALIC! P < 0.05). LIMITATIONS, REASONS FOR CAUTION We chose ADSCs for their accessibility, convenience and safety. We did not use other cells or materials for POI treatments to show that the collagen/ADSCs are the most promising materials. WIDER IMPLICATIONS OF THE FINDINGS Soluble collagen scaffolds may be useful in stem cells transplantation therapy for POI. STUDY FUNDING/COMPETING INTERESTS This work is supported by grants from the 'Strategic Priority Research Program' of the Chinese Academy of Sciences (XDA01030000); Maternal-Fetal Medicine from Jiangsu Province Health Department of China (XK2011027); Clinical Center of Obstetric, Gynecologic and Genetic Diseases, Nanjing Health Department of Jiangsu Province, China; Fundamental Research Funds for the Central Universities (20620140652). The authors declare no competing financial interests. TRIAL REGISTRATION NUMBER Not applicable.
Collapse
Affiliation(s)
- Jing Su
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Lijun Ding
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Jie Cheng
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Jun Yang
- Department of Pathology, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Xin'an Li
- Department of Obstetrics and Gynecology, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Guijun Yan
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Haixiang Sun
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China
| | - Yali Hu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China Department of Obstetrics and Gynecology, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, China
| |
Collapse
|
50
|
Singaravelu S, Ramanathan G, Raja MD, Nagiah N, Padmapriya P, Kaveri K, Sivagnanam UT. Biomimetic interconnected porous keratin-fibrin-gelatin 3D sponge for tissue engineering application. Int J Biol Macromol 2016; 86:810-9. [PMID: 26875534 DOI: 10.1016/j.ijbiomac.2016.02.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 02/05/2016] [Accepted: 02/08/2016] [Indexed: 12/24/2022]
Abstract
The medicated wound dressing material with highly interconnected pores, mimicking the function of the extracellular matrix was fabricated for the promotion of cell growth. In this study, keratin (K), fibrin (F) and gelatin (G) composite scaffold (KFG-SPG) was fabricated by freeze drying technique and the mupirocin (D) drug was successfully incorporated with KFG-SPG (KFG-SPG-D) intended for tissue engineering applications. The fabrication of scaffold was performed without the use of any strong chemical solvents, and the solid sponge scaffold was obtained with well interconnected pores. The porous morphology of the scaffold was confirmed by SEM analysis and exhibited competent mechanical properties. KFG-SPG and KFG-SPG-D possess high level of biocompatibility, cell proliferation and cell adhesion of NIH 3T3 fibroblast and human keratinocytes (HaCaT) cell lines thereby indicating the scaffolds potential as a suitable medicated dressing for wound healing.
Collapse
Affiliation(s)
- Sivakumar Singaravelu
- Bioproducts Lab, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamilnadu, India
| | - Giriprasath Ramanathan
- Bioproducts Lab, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamilnadu, India
| | - M D Raja
- Bioproducts Lab, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, Tamilnadu, India
| | - Naveen Nagiah
- Department of Mechanical Engineering, University of Colorado, Boulder, USA
| | - P Padmapriya
- Department of Virology, King Institute of Preventive Medicine and Research, Guindy, Chennai 600032, Tamilnadu, India
| | - Krishnasamy Kaveri
- Department of Virology, King Institute of Preventive Medicine and Research, Guindy, Chennai 600032, Tamilnadu, India
| | | |
Collapse
|