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Ford EM, Hilderbrand AM, Kloxin AM. Harnessing multifunctional collagen mimetic peptides to create bioinspired stimuli responsive hydrogels for controlled cell culture. J Mater Chem B 2024. [PMID: 39211975 PMCID: PMC11362912 DOI: 10.1039/d4tb00562g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024]
Abstract
The demand for synthetic soft materials with bioinspired structures continues to grow. Material applications range from in vitro and in vivo tissue mimics to therapeutic delivery systems, where well-defined synthetic building blocks offer precise and reproducible property control. This work examines a synthetic assembling peptide, specifically a multifunctional collagen mimetic peptide (mfCMP) either alone or with reactive macromers, for the creation of responsive hydrogels that capture aspects of soft collagen-rich tissues. We first explored how buffer choice impacts mfCMP hierarchical assembly, in particular, peptide melting temperature, fibril morphology, and ability to form physical hydrogels. Assembly in physiologically relevant buffer resulted in collagen-like fibrillar structures and physically assembled hydrogels with shear-thinning (as indicated through strain-yielding) and self-healing properties. Further, we aimed to create fully synthetic, composite peptide-polymer hydrogels with dynamic responses to various stimuli, inspired by the extracellular matrix (ECM). Specifically, we established mfCMP-poly(ethylene glycol) (PEG) hydrogel compositions that demonstrate increasing non-linear viscoelasticity in response to applied strain as the amount of assembled mfCMP content increases. Furthermore, the thermal responsiveness of mfCMP physical crosslinks was harnessed to manipulate the composite hydrogel mechanical properties in response to changes in temperature. Finally, cells relevant in wound healing, human lung fibroblasts, were encapsulated within these peptide-polymer hydrogels to explore the impact of increased mfCMP, and the resulting changes in viscoelasticity, on cell response. This work establishes mfCMP building blocks as versatile tools for creating hybrid and adaptable systems with applications ranging from injectable shear-thinning materials to responsive interfaces and synthetic ECMs for tissue engineering.
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Affiliation(s)
- Eden M Ford
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
| | - Amber M Hilderbrand
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
| | - April M Kloxin
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
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2
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Jeong U, Yoon S, Park S, Jeon TJ, Kim SM. 3D Artificial Skin Platform for Investigating Pregnancy-Related Skin Pigmentation. MICROMACHINES 2024; 15:511. [PMID: 38675322 PMCID: PMC11052160 DOI: 10.3390/mi15040511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/04/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024]
Abstract
In this study, we created a 3D Artificial Skin Platform that can be used for the treatment of pigmentation by artificially realizing the skin of pregnant women. For the stable realization of 3D artificial skin, a bilayer hydrogel composed of collagen type I and fibrin was designed and applied to the study to reduce the tension-induced contraction of collagen type I, the extracellular matrix (ECM) of artificial skin, by dynamic culture. Oxygen concentration and 17β-Estradiol (E2) concentration, which are highly related to melanin production, were selected as parameters of the pregnancy environment and applied to cell culture. Oxygen concentration, which is locally reduced in the first trimester (2.5-3%), and E2, which is upregulated in the third trimester, were applied to the cell culture process. We analyzed whether the 3D artificial skin implemented in the 3D Artificial Skin Platform could better represent the tendency of melanin expression in pregnant women than cells cultured under the same conditions in 2D. The expression levels of melanin and melanin-related genes in the 2D cell culture did not show a significant trend that was similar to the melanin expression trend in pregnant women. However, the 3D artificial skin platform showed a significant trend towards a 2-6-fold increase in melanin expression in response to low oxygen concentrations (2.5%) and E2 concentrations (17 ng/mL), which was similar to the trend in pregnant women in vivo. These results suggest that 3D artificial skin cultured on the Artificial Skin Platform has the potential to be used as a substitute for human pregnant skin in various research fields related to the treatment of pigmentation.
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Affiliation(s)
- Uiechan Jeong
- Department of Mechanical Engineering, Inha University, 100 Inha-ro, Incheon 22212, Republic of Korea;
| | - Sunhee Yoon
- Department of Biological Sciences and Bioengineering, Inha University, 100 Inha-ro, Incheon 22212, Republic of Korea;
| | - Sungjin Park
- Department of Mechanical and System Design Engineering, Hongik University, 94 Wausan-ro, Seoul 04066, Republic of Korea;
| | - Tae-Joon Jeon
- Department of Biological Sciences and Bioengineering, Inha University, 100 Inha-ro, Incheon 22212, Republic of Korea;
- Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon 22212, Republic of Korea
| | - Sun Min Kim
- Department of Mechanical Engineering, Inha University, 100 Inha-ro, Incheon 22212, Republic of Korea;
- Department of Biological Sciences and Bioengineering, Inha University, 100 Inha-ro, Incheon 22212, Republic of Korea;
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Šuca H, Čoma M, Tomšů J, Sabová J, Zajíček R, Brož A, Doubková M, Novotný T, Bačáková L, Jenčová V, Kuželová Košťáková E, Lukačín Š, Rejman D, Gál P. Current Approaches to Wound Repair in Burns: How far Have we Come From Cover to Close? A Narrative Review. J Surg Res 2024; 296:383-403. [PMID: 38309220 DOI: 10.1016/j.jss.2023.12.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/06/2023] [Accepted: 12/29/2023] [Indexed: 02/05/2024]
Abstract
Burn injuries are a significant global health concern, with more than 11 million people requiring medical intervention each year and approximately 180,000 deaths annually. Despite progress in health and social care, burn injuries continue to result in socioeconomic burdens for victims and their families. The management of severe burn injuries involves preventing and treating burn shock and promoting skin repair through a two-step procedure of covering and closing the wound. Currently, split-thickness/full-thickness skin autografts are the gold standard for permanent skin substitution. However, deep burns treated with split-thickness skin autografts may contract, leading to functional and appearance issues. Conversely, defects treated with full-thickness skin autografts often result in more satisfactory function and appearance. The development of tissue-engineered dermal templates has further expanded the scope of wound repair, providing scar reductive and regenerative properties that have extended their use to reconstructive surgical interventions. Although their interactions with the wound microenvironment are not fully understood, these templates have shown potential in local infection control. This narrative review discusses the current state of wound repair in burn injuries, focusing on the progress made from wound cover to wound closure and local infection control. Advancements in technology and therapies hold promise for improving the outcomes for burn injury patients. Understanding the underlying mechanisms of wound repair and tissue regeneration may provide new insights for developing more effective treatments in the future.
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Affiliation(s)
- Hubert Šuca
- Prague Burn Center, Third Faculty of Medicine, Charles University and Královské Vinohrady University Hospital, Prague, Czech Republic
| | - Matúš Čoma
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Košice, Slovak Republic; Department of Biomedical Research, East-Slovak Institute of Cardiovascular Diseases, Inc, Košice, Slovak Republic
| | - Júlia Tomšů
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Jana Sabová
- Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Košice, Slovak Republic
| | - Robert Zajíček
- Prague Burn Center, Third Faculty of Medicine, Charles University and Královské Vinohrady University Hospital, Prague, Czech Republic
| | - Antonín Brož
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Martina Doubková
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Tomáš Novotný
- Department of Orthopaedics, University J.E. Purkině and Masaryk Hospital, Ústí nad Labem, Czech Republic; Department of Histology and Embryology, Second Faculty of Medicine, Charles University, Prague, Czech Republic; Department of Orthopaedic Surgery, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Lucie Bačáková
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Věra Jenčová
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Liberec, Czech Republic
| | - Eva Kuželová Košťáková
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Liberec, Czech Republic
| | - Štefan Lukačín
- Department of Heart Surgery, East-Slovak Institute of Cardiovascular Diseases, Inc, Košice, Slovak Republic
| | - Dominik Rejman
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Peter Gál
- Prague Burn Center, Third Faculty of Medicine, Charles University and Královské Vinohrady University Hospital, Prague, Czech Republic; Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Košice, Slovak Republic; Department of Biomedical Research, East-Slovak Institute of Cardiovascular Diseases, Inc, Košice, Slovak Republic; Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University, Bratislava, Slovak Republic; Biomedical Research Center of the Slovak Academy of Sciences, Košice, Slovak Republic.
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Kang K, Ye S, Jeong C, Jeong J, Ye YS, Jeong JY, Kim YJ, Lim S, Kim TH, Kim KY, Kim JU, Kim GI, Chun DH, Kim K, Park J, Hong JH, Park B, Kim K, Jung S, Baek K, Cho D, Yoo J, Lee K, Cheng H, Min BW, Kim HJ, Jeon H, Yi H, Kim TI, Yu KJ, Jung Y. Bionic artificial skin with a fully implantable wireless tactile sensory system for wound healing and restoring skin tactile function. Nat Commun 2024; 15:10. [PMID: 38169465 PMCID: PMC10762199 DOI: 10.1038/s41467-023-44064-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024] Open
Abstract
Tactile function is essential for human life as it enables us to recognize texture and respond to external stimuli, including potential threats with sharp objects that may result in punctures or lacerations. Severe skin damage caused by severe burns, skin cancer, chemical accidents, and industrial accidents damage the structure of the skin tissue as well as the nerve system, resulting in permanent tactile sensory dysfunction, which significantly impacts an individual's daily life. Here, we introduce a fully-implantable wireless powered tactile sensory system embedded artificial skin (WTSA), with stable operation, to restore permanently damaged tactile function and promote wound healing for regenerating severely damaged skin. The fabricated WTSA facilitates (i) replacement of severely damaged tactile sensory with broad biocompatibility, (ii) promoting of skin wound healing and regeneration through collagen and fibrin-based artificial skin (CFAS), and (iii) minimization of foreign body reaction via hydrogel coating on neural interface electrodes. Furthermore, the WTSA shows a stable operation as a sensory system as evidenced by the quantitative analysis of leg movement angle and electromyogram (EMG) signals in response to varying intensities of applied pressures.
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Affiliation(s)
- Kyowon Kang
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Seongryeol Ye
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Korea
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Korea
| | - Chanho Jeong
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jinmo Jeong
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Yeong-Sinn Ye
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jin-Young Jeong
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Yu-Jin Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Korea
| | - Selin Lim
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
- School of Electrical and Electronic Engineering, YU-KIST Institute, Yonsei University, Seoul, Republic of Korea
| | - Tae Hee Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Korea
- Department of Fusion Research and Collaboration, Biomedical Research Institute, Seoul National University Hospital, Seoul, 03080, Republic of Korea
| | - Kyung Yeun Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jong Uk Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Gwan In Kim
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Do Hoon Chun
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Kiho Kim
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jaejin Park
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jung-Hoon Hong
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Byeonghak Park
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Kyubeen Kim
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Sujin Jung
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Kyeongrim Baek
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Dongjun Cho
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Jin Yoo
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Korea
| | - Kangwon Lee
- Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Korea
- Research Institute for Convergence Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Huanyu Cheng
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Byung-Wook Min
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Hyun Jae Kim
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
| | - Hojeong Jeon
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Hyunjung Yi
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.
- Department of Materials Science and Engineering, YU-KIST Institute, Yonsei University, Seoul, 03722, Republic of Korea.
| | - Tae-Il Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.
| | - Ki Jun Yu
- Department of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea.
- School of Electrical and Electronic Engineering, YU-KIST Institute, Yonsei University, Seoul, Republic of Korea.
| | - Youngmee Jung
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Korea.
- School of Electrical and Electronic Engineering, YU-KIST Institute, Yonsei University, Seoul, Republic of Korea.
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Fani N, Moradi M, Zavari R, Parvizpour F, Soltani A, Arabpour Z, Jafarian A. Current Advances in Wound Healing and Regenerative Medicine. Curr Stem Cell Res Ther 2024; 19:277-291. [PMID: 36856176 DOI: 10.2174/1574888x18666230301140659] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 03/02/2023]
Abstract
Treating chronic wounds is a common and costly challenge worldwide. More advanced treatments are needed to improve wound healing and prevent severe complications such as infection and amputation. Like other medical fields, there have been advances in new technologies promoting wound healing potential. Regenerative medicine as a new method has aroused hope in treating chronic wounds. The technology improving wound healing includes using customizable matrices based on synthetic and natural polymers, different types of autologous and allogeneic cells at different differentiation phases, small molecules, peptides, and proteins as a growth factor, RNA interference, and gene therapy. In the last decade, various types of wound dressings have been designed. Emerging dressings include a variety of interactive/ bioactive dressings and tissue-engineering skin options. However, there is still no suitable and effective dressing to treat all chronic wounds. This article reviews different wounds and common treatments, advanced technologies and wound dressings, the advanced wound care market, and some interactive/bioactive wound dressings in the market.
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Affiliation(s)
- Nesa Fani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Moradi
- MD-MPH Iran University of Medical Sciences, Tehran, Iran
| | - Roxana Zavari
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Parvizpour
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
- Department of Molecular Medicine, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Adele Soltani
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
- CinnaGen Research and Production Co., Alborz, Iran
| | - Zohreh Arabpour
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| | - Arefeh Jafarian
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
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Wang H, Sun D, Lin W, Fang C, Cheng K, Pan Z, Wang D, Song Z, Long X. One-step fabrication of cell sheet-laden hydrogel for accelerated wound healing. Bioact Mater 2023; 28:420-431. [PMID: 37519924 PMCID: PMC10382966 DOI: 10.1016/j.bioactmat.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 05/12/2023] [Accepted: 06/07/2023] [Indexed: 08/01/2023] Open
Abstract
Full-thickness skin wounds are have continued to be reconstructive challenges in dermal and skin appendage regeneration, and skin substitutes are promising tools for addressing these reconstructive procedures. Herein, the one-step fabrication of a cell sheet integrated with a biomimetic hydrogel as a tissue engineered skin for skin wound healing generated in one step is introduced. Briefly, cell sheets with rich extracellular matrix, high cell density, and good cell connections were integrated with biomimetic hydrogel to fabricate gel + human skin fibroblasts (HSFs) sheets and gel + human umbilical vein endothelial cells (HUVECs) sheets in one step for assembly as a cell sheet-laden hydrogel (CSH). The designed biomimetic hydrogel formed with UV crosslinking and ionic crosslinking exhibited unique properties due to the photo-generated aldehyde groups, which were suitable for integrating into the cell sheet, and ionic crosslinking reduced the adhesive force toward the substrate. These properties allowed the gel + cell sheet film to be easily released from the substrate. The cells in the harvested cell sheet maintained excellent viability, proliferation, and definite migration abilities inside the hydrogel. Moreover, the CSH was implanted into a full-thickness skin defects to construct a required dermal matrix and cell microenvironment. The wound closure rate reached 60.00 ± 6.26% on the 2nd day, accelerating mature granulation and dermis formation with skin appendages after 14 days. This project can provide distinct guidance and strategies for the complete repair and regeneration of full-thickness skin defects, and provides a material with great potential for tissue regeneration in clinical applications.
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Affiliation(s)
- Huijuan Wang
- Department of Colorectal Surgery, Key Laboratory of Biological Treatment of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
| | - Deshun Sun
- Southern University of Science and Technology Hospital, Intelligent Medical Innovation Center, Shenzhen, 518035, China
| | - Weiming Lin
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou, 310027, China
| | - Chao Fang
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou, 310027, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou, 310027, China
| | - Zhengzhou Pan
- Department of Nuclear Medicine, The First Affiliated Hospital of Zhejiang University School of Medicine, Shenzhen, 518035, China
| | - Daping Wang
- Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China
| | - Zhangfa Song
- Department of Colorectal Surgery, Key Laboratory of Biological Treatment of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
| | - Xiaojun Long
- Department of Colorectal Surgery, Key Laboratory of Biological Treatment of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310016, China
- Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China
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Wei S, Wang Z, Liang X, Xiong T, Kang Z, Lei S, Wu B, Cheng B. A composite hydrogel with antibacterial and promoted cell proliferation dual properties for healing of infected wounds. Am J Transl Res 2023; 15:4467-4486. [PMID: 37560210 PMCID: PMC10408500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 06/08/2023] [Indexed: 08/11/2023]
Abstract
Wound infection remains a major challenge for health professionals, because it delays wound healing and increases the overall cost and morbidity. Therefore, the development of new biomaterials with new antibacterial properties and healing effects remains a dire clinical need. To solve this problem, we developed silver nanoparticles embedded in γ-cyclodextrin metal-organic frameworks (Ag@MOF) and platelet-rich plasma (PRP)-loaded hydrogel systems based on methacrylated silk fibroin (SFMA) and methacrylate hyaluronic acid (HAMA) as Ag+ ion and growth factor delivery vehicles for inhibiting the growth of drug-resistant bacteria and promoting wound healing. The prepared SFMA/HAMA hydrogel demonstrated good rheological properties, swelling capability, appropriate mechanical properties and controllable biodegradability. The SFMA/HAMA/Ag@MOF/PRP hydrogel showed sustained release profiles of Ag+ ions and EGF. The SFMA/HAMA/Ag@MOF hydrogel have good inherent antibacterial properties against both gram-negative bacteria and gram-positive bacteria. The prepared hydrogel showed excellent cytocompatibility and could stimulate the growth and proliferation rate of NIH-3T3 cells. In vivo experiments showed that SFMA/HAMA/Ag@MOF/PRP hydrogel treatment enhanced the healing of full-thickness wounds, reduced inflammatory cell infiltration, and promoted re-epithelialization and collagen synthesis. All results indicated that the prepared hydrogel has tremendous potential to reduce wound infections and improve wound healing.
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Affiliation(s)
- Shikun Wei
- Department of Orthopedics, The Second People’s Hospital of Panyu DistrictGuangzhou 511400, Guangdong, China
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, PLAGuangzhou 510010, Guangdong, China
| | - Zhongshan Wang
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, PLAGuangzhou 510010, Guangdong, China
| | - Xiaoyan Liang
- The Affiliated Hexian Memorial Hospital of Southern Medical UniversityGuangzhou 511400, Guangdong, China
| | - Tingliang Xiong
- Department of Orthopedics, The Second People’s Hospital of Panyu DistrictGuangzhou 511400, Guangdong, China
| | - Zhengyang Kang
- Department of Orthopedics, The Second People’s Hospital of Panyu DistrictGuangzhou 511400, Guangdong, China
| | - Sheng Lei
- Department of Orthopedics, The Second People’s Hospital of Panyu DistrictGuangzhou 511400, Guangdong, China
| | - Bin Wu
- Department of Orthopedics, The Second People’s Hospital of Panyu DistrictGuangzhou 511400, Guangdong, China
| | - Biao Cheng
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, PLAGuangzhou 510010, Guangdong, China
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Adipose-Derived Stem Cells in Reinforced Collagen Gel: A Comparison between Two Approaches to Differentiation towards Smooth Muscle Cells. Int J Mol Sci 2023; 24:ijms24065692. [PMID: 36982766 PMCID: PMC10058441 DOI: 10.3390/ijms24065692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 03/19/2023] Open
Abstract
Scaffolds made of degradable polymers, such as collagen, polyesters or polysaccharides, are promising matrices for fabrication of bioartificial vascular grafts or patches. In this study, collagen isolated from porcine skin was processed into a gel, reinforced with collagen particles and with incorporated adipose tissue-derived stem cells (ASCs). The cell-material constructs were then incubated in a DMEM medium with 2% of FS (DMEM_part), with added polyvinylalcohol nanofibers (PVA_part sample), and for ASCs differentiation towards smooth muscle cells (SMCs), the medium was supplemented either with human platelet lysate released from PVA nanofibers (PVA_PL_part) or with TGF-β1 + BMP-4 (TGF + BMP_part). The constructs were further endothelialised with human umbilical vein endothelial cells (ECs). The immunofluorescence staining of alpha-actin and calponin, and von Willebrand factor, was performed. The proteins involved in cell differentiation, the extracellular matrix (ECM) proteins, and ECM remodelling proteins were evaluated by mass spectrometry on day 12 of culture. Mechanical properties of the gels with ASCs were measured via an unconfined compression test on day 5. Gels evinced limited planar shrinkage, but it was higher in endothelialised TGF + BMP_part gel. Both PVA_PL_part samples and TGF + BMP_part samples supported ASC growth and differentiation towards SMCs, but only PVA_PL_part supported homogeneous endothelialisation. Young modulus of elasticity increased in all samples compared to day 0, and PVA_PL_part gel evinced a slightly higher ratio of elastic energy. The results suggest that PVA_PL_part collagen construct has the highest potential to remodel into a functional vascular wall.
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9
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Joshi A, Nuntapramote T, Brüggemann D. Self-Assembled Fibrinogen Scaffolds Support Cocultivation of Human Dermal Fibroblasts and HaCaT Keratinocytes. ACS OMEGA 2023; 8:8650-8663. [PMID: 36910955 PMCID: PMC9996769 DOI: 10.1021/acsomega.2c07896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Self-assembled fibrinogen scaffolds are highly attractive biomaterials to mimic native blood clots. To explore their potential for wound healing, we studied the interaction of cocultures of human dermal fibroblasts (HDFs) and HaCaT keratinocytes with nanofibrous, planar, and physisorbed fibrinogen. Cell viability analysis indicated that the growth of HDFs and HaCaTs was supported by all fibrinogen topographies until 14 days, either in mono- or coculture. Using scanning electron microscopy and cytoskeletal staining, we observed that the native morphology of both cell types was preserved on all topographies. Expression of the marker proteins vimentin and cytokeratin-14 showed that the native phenotype of fibroblasts and undifferentiated keratinocytes, respectively, was maintained. HDFs displayed their characteristic wound healing phenotype, characterized by expression of fibronectin. Finally, to mimic the multilayered microenvironment of skin, we established successive cocultures of both cells, for which we found consistently high metabolic activities. SEM analysis revealed that HaCaTs arranged into a confluent top layer after 14 days, while fluorescent labeling confirmed the presence of both cells in the layered structure after 6 days. In conclusion, all fibrinogen topographies successfully supported the cocultivation of fibroblasts and keratinocytes, with fibrinogen nanofibers being particularly attractive for skin regeneration due to their biomimetic porous architecture and the technical possibility to be detached from an underlying substrate.
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Affiliation(s)
- Arundhati Joshi
- Institute
for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Titinun Nuntapramote
- Institute
for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Dorothea Brüggemann
- Institute
for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
- MAPEX
Center for Materials and Processes, University
of Bremen, 28359 Bremen, Germany
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10
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Lecina-Tejero Ó, Pérez MÁ, García-Gareta E, Borau C. The rise of mechanical metamaterials: Auxetic constructs for skin wound healing. J Tissue Eng 2023; 14:20417314231177838. [PMID: 37362902 PMCID: PMC10285607 DOI: 10.1177/20417314231177838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/06/2023] [Indexed: 06/28/2023] Open
Abstract
Auxetic materials are known for their unique ability to expand/contract in multiple directions when stretched/compressed. In other words, they exhibit a negative Poisson's ratio, which is usually positive for most of materials. This behavior appears in some biological tissues such as human skin, where it promotes wound healing by providing an enhanced mechanical support and facilitating cell migration. Skin tissue engineering has been a growing research topic in recent years, largely thanks to the rapid development of 3D printing techniques and technologies. The combination of computational studies with rapid manufacturing and tailored designs presents a huge potential for the future of personalized medicine. Overall, this review article provides a comprehensive overview of the current state of research on auxetic constructs for skin healing applications, highlighting the potential of auxetics as a promising treatment option for skin wounds. The article also identifies gaps in the current knowledge and suggests areas for future research. In particular, we discuss the designs, materials, manufacturing techniques, and also the computational and experimental studies on this topic.
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Affiliation(s)
- Óscar Lecina-Tejero
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
| | - María Ángeles Pérez
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet University Hospital, 50009 Zaragoza, Aragon, Spain
| | - Elena García-Gareta
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet University Hospital, 50009 Zaragoza, Aragon, Spain
- Division of Biomaterials & Tissue Engineering, UCL Eastman Dental Institute, University College London, London, UK
| | - Carlos Borau
- Multiscale in Mechanical and Biological Engineering, Aragon Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Aragon, Spain
- Centro Universitario de la Defensa de Zaragoza, Zaragoza, 50090, Spain
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11
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Khan HM, Liao X, Sheikh BA, Wang Y, Su Z, Guo C, Li Z, Zhou C, Cen Y, Kong Q. Smart biomaterials and their potential applications in tissue engineering. J Mater Chem B 2022; 10:6859-6895. [PMID: 36069198 DOI: 10.1039/d2tb01106a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Smart biomaterials have been rapidly advancing ever since the concept of tissue engineering was proposed. Interacting with human cells, smart biomaterials can play a key role in novel tissue morphogenesis. Various aspects of biomaterials utilized in or being sought for the goal of encouraging bone regeneration, skin graft engineering, and nerve conduits are discussed in this review. Beginning with bone, this study summarizes all the available bioceramics and materials along with their properties used singly or in conjunction with each other to create scaffolds for bone tissue engineering. A quick overview of the skin-based nanocomposite biomaterials possessing antibacterial properties for wound healing is outlined along with skin regeneration therapies using infrared radiation, electrospinning, and piezoelectricity, which aid in wound healing. Furthermore, a brief overview of bioengineered artificial skin grafts made of various natural and synthetic polymers has been presented. Finally, by examining the interactions between natural and synthetic-based biomaterials and the biological environment, their strengths and drawbacks for constructing peripheral nerve conduits are highlighted. The description of the preclinical outcome of nerve regeneration in injury healed with various natural-based conduits receives special attention. The organic and synthetic worlds collide at the interface of nanomaterials and biological systems, producing a new scientific field including nanomaterial design for tissue engineering.
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Affiliation(s)
- Haider Mohammed Khan
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Xiaoxia Liao
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Bilal Ahmed Sheikh
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Yixi Wang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhixuan Su
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Chuan Guo
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Changchun Zhou
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Ying Cen
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Qingquan Kong
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
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12
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Hewitt BJ, Batt JM, Shelton RM, Cooper PR, Landini G, Lucas RA, Wiench MD, Milward MR. A 3D Printed Device for In Vitro Generation of Stratified Epithelia at the Air-Liquid Interface. Tissue Eng Part C Methods 2022; 28:599-609. [PMID: 36047814 DOI: 10.1089/ten.tec.2022.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Air-liquid interface (ALI) cultures are used to produce stratified epithelial tissues in vitro, notably for the production of oral mucosal equivalents. Currently, there are few purpose-built devices which aim to enhance the ease and reproducibility of generating such tissue. Most ALI cultures utilise stainless steel grids or cell culture inserts to elevate the matrix or scaffold to the surface of the culture media. Here, a novel buoyant epithelial culture device (BECD) was designed to both contain a fibroblast-seeded collagen hydrogel and float in culture media, thereby automatically maintaining the ALI without further user intervention. BECDs aim to mitigate several issues associated with ALI culture; reducing the chance of media flooding the epithelial layer from physical disturbance, reducing technique-sensitivity for less experienced users, and improving the reproducibility of the epithelia generated. H400 oral squamous cell carcinoma cells cultured in BECDs for 7, 14 and 21 days showed continuous increase in epithelial tissue thickness with expected localisation of epithelial differentiation markers: cytokeratin 5, involucrin and E-cadherin. Fused filament fabrication 3D printing with polypropylene used in BECD production allows for rapid turnover and design iteration, presenting a versatile, adaptable and useful tool for application in in vitro cell culture.
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Affiliation(s)
- Benjamin John Hewitt
- University of Birmingham, School of Dentistry, 5 Mill Pool Way, Birmingham, B5 7EG, Birmingham, United Kingdom of Great Britain and Northern Ireland, B15 2TT;
| | - Joanna M Batt
- University of Birmingham, School of Dentistry, Birmingham, United Kingdom of Great Britain and Northern Ireland;
| | - Richard Michael Shelton
- University of Birmingham School of Dentistry, Dentistry, Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland;
| | - Paul R Cooper
- University of Otago Division of Health Sciences, Dunedin, New Zealand;
| | - Gabriel Landini
- University of Birmingham School of Dentistry, School of Dentistry, Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland;
| | - Robert A Lucas
- GlaxoSmithKline Consumer Healthcare, Weybridge, Surrey, United Kingdom of Great Britain and Northern Ireland;
| | - Malgorzata D Wiench
- University of Birmingham School of Dentistry, Dentistry, Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland.,University of Birmingham Institute of Cancer and Genomic Sciences, Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland;
| | - Michael R Milward
- University of Birmingham School of Dentistry, Dentistry, Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland;
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13
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Advances in Fibrin-Based Materials in Wound Repair: A Review. Molecules 2022; 27:molecules27144504. [PMID: 35889381 PMCID: PMC9322155 DOI: 10.3390/molecules27144504] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 11/29/2022] Open
Abstract
The first bioprocess that occurs in response to wounding is the deterrence of local hemorrhage. This is accomplished by platelet aggregation and initiation of the hemostasis cascade. The resulting blood clot immediately enables the cessation of bleeding and then functions as a provisional matrix for wound healing, which begins a few days after injury. Here, fibrinogen and fibrin fibers are the key players, because they literally serve as scaffolds for tissue regeneration and promote the migration of cells, as well as the ingrowth of tissues. Fibrin is also an important modulator of healing and a host defense system against microbes that effectively maintains incoming leukocytes and acts as reservoir for growth factors. This review presents recent advances in the understanding and applications of fibrin and fibrin-fiber-incorporated biomedical materials applied to wound healing and subsequent tissue repair. It also discusses how fibrin-based materials function through several wound healing stages including physical barrier formation, the entrapment of bacteria, drug and cell delivery, and eventual degradation. Pure fibrin is not mechanically strong and stable enough to act as a singular wound repair material. To alleviate this problem, this paper will demonstrate recent advances in the modification of fibrin with next-generation materials exhibiting enhanced stability and medical efficacy, along with a detailed look at the mechanical properties of fibrin and fibrin-laden materials. Specifically, fibrin-based nanocomposites and their role in wound repair, sustained drug release, cell delivery to wound sites, skin reconstruction, and biomedical applications of drug-loaded fibrin-based materials will be demonstrated and discussed.
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14
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Droplet-based bioprinting enables the fabrication of cell–hydrogel–microfibre composite tissue precursors. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00192-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractComposites offer the option of coupling the individual benefits of their constituents to achieve unique material properties, which can be of extra value in many tissue engineering applications. Strategies combining hydrogels with fibre-based scaffolds can create tissue constructs with enhanced biological and structural functionality. However, developing efficient and scalable approaches to manufacture such composites is challenging. Here, we use a droplet-based bioprinting system called reactive jet impingement (ReJI) to integrate a cell-laden hydrogel with a microfibrous mesh. This system uses microvalves connected to different bioink reservoirs and directed to continuously jet bioink droplets at one another in mid-air, where the droplets react and form a hydrogel that lands on a microfibrous mesh. Cell–hydrogel–fibre composites are produced by embedding human dermal fibroblasts at two different concentrations (5 × 106 and 30 × 106 cells/mL) in a collagen–alginate–fibrin hydrogel matrix and bioprinted onto a fibre-based substrate. Our results show that both types of cell–hydrogel–microfibre composite maintain high cell viability and promote cell–cell and cell–biomaterial interactions. The lower fibroblast density triggers cell proliferation, whereas the higher fibroblast density facilitates faster cellular organisation and infiltration into the microfibres. Additionally, the fibrous component of the composite is characterised by high swelling properties and the quick release of calcium ions. The data indicate that the created composite constructs offer an efficient way to create highly functional tissue precursors for laminar tissue engineering, particularly for wound healing and skin tissue engineering applications.
Graphic abstract
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15
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Safina I, Childress LT, Myneni SR, Vang KB, Biris AS. Cell-Biomaterial Constructs for Wound Healing and Skin Regeneration. Drug Metab Rev 2022; 54:63-94. [PMID: 35129408 DOI: 10.1080/03602532.2021.2025387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Over the years, conventional skin grafts, such as full-thickness, split-thickness, and pre-sterilized grafts from human or animal sources, have been at the forefront of skin wound care. However, these conventional grafts are associated with major challenges, including supply shortage, rejection by the immune system, and disease transmission following transplantation. Due to recent progress in nanotechnology and material sciences, advanced artificial skin grafts-based on the fundamental concepts of tissue engineering-are quickly evolving for wound healing and regeneration applications, mainly because they can be uniquely tailored to meet the requirements of specific injuries. Despite tremendous progress in tissue engineering, many challenges and uncertainties still face skin grafts in vivo, such as how to effectively coordinate the interaction between engineered biomaterials and the immune system to prevent graft rejection. Furthermore, in-depth studies on skin regeneration at the molecular level are lacking; as a consequence, the development of novel biomaterial-based systems that interact with the skin at the core level has also been slow. This review will discuss 1) the biological aspects of wound healing and skin regeneration, 2) important characteristics and functions of biomaterials for skin regeneration applications, and 3) synthesis and applications of common biomaterials for skin regeneration. Finally, the current challenges and future directions of biomaterial-based skin regeneration will be addressed.
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Affiliation(s)
- Ingrid Safina
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR 72204 USA
| | - Luke T Childress
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR 72204 USA
| | - Srinivas R Myneni
- Department of Periodontology, Stony Brook University, Stony Brook, NY 11794 USA
| | - Kieng Bao Vang
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR 72204 USA
| | - Alexandru S Biris
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 S. University Avenue, Little Rock, AR 72204 USA
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16
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Luo T, Tan B, Zhu L, Wang Y, Liao J. A Review on the Design of Hydrogels With Different Stiffness and Their Effects on Tissue Repair. Front Bioeng Biotechnol 2022; 10:817391. [PMID: 35145958 PMCID: PMC8822157 DOI: 10.3389/fbioe.2022.817391] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/07/2022] [Indexed: 12/20/2022] Open
Abstract
Tissue repair after trauma and infection has always been a difficult problem in regenerative medicine. Hydrogels have become one of the most important scaffolds for tissue engineering due to their biocompatibility, biodegradability and water solubility. Especially, the stiffness of hydrogels is a key factor, which influence the morphology of mesenchymal stem cells (MSCs) and their differentiation. The researches on this point are meaningful to the field of tissue engineering. Herein, this review focus on the design of hydrogels with different stiffness and their effects on the behavior of MSCs. In addition, the effect of hydrogel stiffness on the phenotype of macrophages is introduced, and then the relationship between the phenotype changes of macrophages on inflammatory response and tissue repair is discussed. Finally, the future application of hydrogels with a certain stiffness in regenerative medicine and tissue engineering has been prospected.
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Affiliation(s)
- Tianyi Luo
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Bowen Tan
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lengjing Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Yating Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Jinfeng Liao,
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17
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Influence of Drying Method and Argon Plasma Modification of Bacterial Nanocellulose on Keratinocyte Adhesion and Growth. NANOMATERIALS 2021; 11:nano11081916. [PMID: 34443747 PMCID: PMC8398638 DOI: 10.3390/nano11081916] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 12/05/2022]
Abstract
Due to its nanostructure, bacterial nanocellulose (BC) has several advantages over plant cellulose, but it exhibits weak cell adhesion. To overcome this drawback, we studied the drying method of BC and subsequent argon plasma modification (PM). BC hydrogels were prepared using the Komagataeibacter sucrofermentans (ATCC 700178) bacteria strain. The hydrogels were transformed into solid samples via air-drying (BC-AD) or lyophilization (BC-L). The sample surfaces were then modified by argon plasma. SEM revealed that compared to BC-AD, the BC-L samples maintained their nanostructure and had higher porosity. After PM, the contact angle decreased while the porosity increased. XPS showed that the O/C ratio was higher after PM. The cell culture experiments revealed that the initial adhesion of human keratinocytes (HaCaT) was supported better on BC-L, while the subsequent growth of these cells and final cell population density were higher on BC-AD. The PM improved the final colonization of both BC-L and BC-AD with HaCaT, leading to formation of continuous cell layers. Our work indicates that the surface modification of BC renders this material highly promising for skin tissue engineering and wound healing.
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18
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Wei C, Feng Y, Che D, Zhang J, Zhou X, Shi Y, Wang L. Biomaterials in skin tissue engineering. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1933977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Chao Wei
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Yihua Feng
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Dezhao Che
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Jiahui Zhang
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Xuan Zhou
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Yanbin Shi
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Li Wang
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
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19
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Sierra-Sánchez Á, Kim KH, Blasco-Morente G, Arias-Santiago S. Cellular human tissue-engineered skin substitutes investigated for deep and difficult to heal injuries. NPJ Regen Med 2021; 6:35. [PMID: 34140525 PMCID: PMC8211795 DOI: 10.1038/s41536-021-00144-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
Wound healing is an important function of skin; however, after significant skin injury (burns) or in certain dermatological pathologies (chronic wounds), this important process can be deregulated or lost, resulting in severe complications. To avoid these, studies have focused on developing tissue-engineered skin substitutes (TESSs), which attempt to replace and regenerate the damaged skin. Autologous cultured epithelial substitutes (CESs) constituted of keratinocytes, allogeneic cultured dermal substitutes (CDSs) composed of biomaterials and fibroblasts and autologous composite skin substitutes (CSSs) comprised of biomaterials, keratinocytes and fibroblasts, have been the most studied clinical TESSs, reporting positive results for different pathological conditions. However, researchers' purpose is to develop TESSs that resemble in a better way the human skin and its wound healing process. For this reason, they have also evaluated at preclinical level the incorporation of other human cell types such as melanocytes, Merkel and Langerhans cells, skin stem cells (SSCs), induced pluripotent stem cells (iPSCs) or mesenchymal stem cells (MSCs). Among these, MSCs have been also reported in clinical studies with hopeful results. Future perspectives in the field of human-TESSs are focused on improving in vivo animal models, incorporating immune cells, designing specific niches inside the biomaterials to increase stem cell potential and developing three-dimensional bioprinting strategies, with the final purpose of increasing patient's health care. In this review we summarize the use of different human cell populations for preclinical and clinical TESSs under research, remarking their strengths and limitations and discuss the future perspectives, which could be useful for wound healing purposes.
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Affiliation(s)
- Álvaro Sierra-Sánchez
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Andalusian Network of Design and Translation of Advanced Therapies, Granada, Spain.
- Biosanitary Institute of Granada (ibs.GRANADA), Granada, Spain.
| | - Kevin H Kim
- Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada University, Granada, Spain
| | - Gonzalo Blasco-Morente
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada University, Granada, Spain
| | - Salvador Arias-Santiago
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, Andalusian Network of Design and Translation of Advanced Therapies, Granada, Spain
- Biosanitary Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Dermatology, Virgen de las Nieves University Hospital, Granada University, Granada, Spain
- Department of Dermatology, Faculty of Medicine, University of Granada, Granada, Spain
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20
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Hameed P, Manivasagam G. An overview of bio-actuation in collagen hydrogels: a mechanobiological phenomenon. Biophys Rev 2021; 13:387-403. [PMID: 34178172 PMCID: PMC8214648 DOI: 10.1007/s12551-021-00804-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 05/04/2021] [Indexed: 12/26/2022] Open
Abstract
Due to their congruity with the native extracellular matrix and their ability to assist in soft tissue repair, hydrogels have been touted as a matrix mimicking biomaterial. Hydrogels are one of the prevalent scaffolds used for 3D cell culture. They can exhibit actuation in response to various stimuli like a magnetic field, electric field, mechanical force, temperature, or pH. In 3D cell culture, the traction exerted by cells on hydrogel can induce non-periodic mechanobiological movements (shrinking or folding) called 'bio-actuation'. Interestingly, this hydrogel 'tropism' phenomenon in 3D cell cultures can be exploited to devise hydrogel-cell-based actuators for tissue engineering. This review briefs about the discrepancies in 2D vs. 3D cell culturing on hydrogels and discusses on different types of cell migration occurring inside the hydrogel matrix. It substantiates the role of mechanical stimuli (such as stiffness) exhibited by the collagen-based hydrogel used for 3D cell culture and its influence in governing the lineage commitment of stem cells. Lastly, the review also audits the cytoskeleton proteins present in cells responsible for influencing the actuation of collagen hydrogel and also elaborates on the cellular signaling pathways responsible for actuation of collagen hydrogels.
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Affiliation(s)
- Pearlin Hameed
- Centre for Biomaterials Cellular and Molecular Theranostics, Vellore Institute of Technology, Vellore, 632014 India
| | - Geetha Manivasagam
- Centre for Biomaterials Cellular and Molecular Theranostics, Vellore Institute of Technology, Vellore, 632014 India
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21
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Tien ND, Lyngstadaas SP, Mano JF, Blaker JJ, Haugen HJ. Recent Developments in Chitosan-Based Micro/Nanofibers for Sustainable Food Packaging, Smart Textiles, Cosmeceuticals, and Biomedical Applications. Molecules 2021; 26:2683. [PMID: 34063713 PMCID: PMC8125268 DOI: 10.3390/molecules26092683] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/27/2021] [Accepted: 05/01/2021] [Indexed: 02/07/2023] Open
Abstract
Chitosan has many useful intrinsic properties (e.g., non-toxicity, antibacterial properties, and biodegradability) and can be processed into high-surface-area nanofiber constructs for a broad range of sustainable research and commercial applications. These nanofibers can be further functionalized with bioactive agents. In the food industry, for example, edible films can be formed from chitosan-based composite fibers filled with nanoparticles, exhibiting excellent antioxidant and antimicrobial properties for a variety of products. Processing 'pure' chitosan into nanofibers can be challenging due to its cationic nature and high crystallinity; therefore, chitosan is often modified or blended with other materials to improve its processability and tailor its performance to specific needs. Chitosan can be blended with a variety of natural and synthetic polymers and processed into fibers while maintaining many of its intrinsic properties that are important for textile, cosmeceutical, and biomedical applications. The abundance of amine groups in the chemical structure of chitosan allows for facile modification (e.g., into soluble derivatives) and the binding of negatively charged domains. In particular, high-surface-area chitosan nanofibers are effective in binding negatively charged biomolecules. Recent developments of chitosan-based nanofibers with biological activities for various applications in biomedical, food packaging, and textiles are discussed herein.
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Affiliation(s)
- Nguyen D. Tien
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway; (N.D.T.); (S.P.L.)
| | - Ståle Petter Lyngstadaas
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway; (N.D.T.); (S.P.L.)
| | - João F. Mano
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Jonathan James Blaker
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway; (N.D.T.); (S.P.L.)
- Department of Materials and Henry Royce Institute, The University of Manchester, Manchester M13 9PL, UK
| | - Håvard J. Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway; (N.D.T.); (S.P.L.)
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22
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Przekora A. A Concise Review on Tissue Engineered Artificial Skin Grafts for Chronic Wound Treatment: Can We Reconstruct Functional Skin Tissue In Vitro? Cells 2020; 9:cells9071622. [PMID: 32640572 PMCID: PMC7407512 DOI: 10.3390/cells9071622] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/17/2020] [Accepted: 06/21/2020] [Indexed: 12/12/2022] Open
Abstract
Chronic wounds occur as a consequence of a prolonged inflammatory phase during the healing process, which precludes skin regeneration. Typical treatment for chronic wounds includes application of autografts, allografts collected from cadaver, and topical delivery of antioxidant, anti-inflammatory, and antibacterial agents. Nevertheless, the mentioned therapies are not sufficient for extensive or deep wounds. Moreover, application of allogeneic skin grafts carries high risk of rejection and treatment failure. Advanced therapies for chronic wounds involve application of bioengineered artificial skin substitutes to overcome graft rejection as well as topical delivery of mesenchymal stem cells to reduce inflammation and accelerate the healing process. This review focuses on the concept of skin tissue engineering, which is a modern approach to chronic wound treatment. The aim of the article is to summarize common therapies for chronic wounds and recent achievements in the development of bioengineered artificial skin constructs, including analysis of biomaterials and cells widely used for skin graft production. This review also presents attempts to reconstruct nerves, pigmentation, and skin appendages (hair follicles, sweat glands) using artificial skin grafts as well as recent trends in the engineering of biomaterials, aiming to produce nanocomposite skin substitutes (nanofilled polymer composites) with controlled antibacterial activity. Finally, the article describes the composition, advantages, and limitations of both newly developed and commercially available bioengineered skin substitutes.
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Affiliation(s)
- Agata Przekora
- Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
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23
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Dill V, Mörgelin M. Biological dermal templates with native collagen scaffolds provide guiding ridges for invading cells and may promote structured dermal wound healing. Int Wound J 2020; 17:618-630. [PMID: 32045112 PMCID: PMC7949003 DOI: 10.1111/iwj.13314] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/20/2019] [Accepted: 01/10/2020] [Indexed: 01/14/2023] Open
Abstract
Dermal substitutes are of major importance in treating full thickness skin defects. They come in a variety of materials manufactured into various forms, such as films, hydrocolloids, hydrogels, sponges, membranes, and electrospun micro- and nanofibers. Bioactive dermal substitutes act in wound healing either by delivery of bioactive compounds or by being constructed from materials having endogenous activity. The healing success rate is highly determined by cellular and physiological processes at the host-biomaterial interface during crucial wound healing steps. Hence, it is important to design appropriate wound treatment strategies with the ability to work actively with tissues and cells to enhance healing. Therefore, in this study, we investigated biological dermal templates and their potential to stimulate natural cell adherence, guidance, and morphology. The most pronounced effect was observed in biomaterials with the highest content of native collagen networks. Cell attachment and proliferation were significantly enhanced on native collagen scaffolds. Cell morphology was more asymmetrical on such scaffolds, resembling native in vivo structures. Importantly, considerably lower expression of myofibroblast phenotype was observed on native collagen scaffolds. Our data suggest that this treatment strategy might be beneficial for the wound environment, with the potential to promote improved tissue regeneration and reduce abnormal scar formation.
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Affiliation(s)
- Veronika Dill
- Department of Clinical Sciences, Division of Infection MedicineLund UniversityLundSweden
| | - Matthias Mörgelin
- Department of Clinical Sciences, Division of Infection MedicineLund UniversityLundSweden
- Colzyx ABLundSweden
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24
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Ravindran Girija A, Palaninathan V, Strudwick X, Balasubramanian S, Dasappan Nair S, Cowin AJ. Collagen-functionalized electrospun smooth and porous polymeric scaffolds for the development of human skin-equivalent. RSC Adv 2020; 10:26594-26603. [PMID: 35515800 PMCID: PMC9055397 DOI: 10.1039/d0ra04648e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/07/2020] [Indexed: 01/22/2023] Open
Abstract
Electrospun polymer fibers have garnered substantial importance in regenerative medicine owing to their intrinsic 3D topography, extracellular matrix microenvironment, biochemical flexibility, and mechanical support. In particular, a material's nano-topography can have a significant effect on cellular responses, including adhesion, proliferation, differentiation, and migration. In this study, poly(l-lactic acid) (PLLA), a biodegradable polymer with excellent biocompatibility was electrospun into fibers with either smooth or porous topologies. The scaffolds were further modified and biofunctionalized with 0.01% and 0.1% collagen to enhance bioactivity and improve cellular interactions. Human keratinocytes (HaCaTs) and fibroblasts (human foreskin fibroblasts-HFF) were cultured on the scaffolds using a modified co-culture technique, where keratinocytes were grown on the dorsal plane for 5 days, followed by flipping, seeding with fibroblasts on the ventral plane and culturing for a further 5 days. Following this, cellular adhesion of the skin cells on both the unmodified and collagen-modified scaffolds (smooth and porous) was performed using scanning electron microscopy (SEM) and immunofluorescence. Distinct outcomes were observed with the unmodified smooth scaffolds showing superior cell adhesion than the porous scaffolds. Modification of the porous and smooth scaffolds with 0.1% collagen enhanced the adhesion and migration of both keratinocytes and fibroblasts to these scaffolds. Further, the collagen-modified scaffolds (both porous and smooth) produced confluent and uniform epidermal sheets of keratinocytes on one plane with healthy fibroblasts populated within the scaffolds. Thus, presenting a vast potential to serve as a self-organized skin substitute this may be a promising biomaterial for development as a dressing for patients suffering from wounds. Collagen-functionalized electrospun smooth and porous poly(l-lactide) scaffolds supporting keratinocytes and fibroblasts as a potential model to serve as self-organized skin substitute.![]()
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Affiliation(s)
| | | | - Xanthe Strudwick
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
| | | | | | - Allison J. Cowin
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
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