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Habibizadeh M, Mohamadi P, Amirian R, Moradi M, Moradi M. Engineered Tissues: A Bright Perspective in Urethral Obstruction Regeneration. TISSUE ENGINEERING. PART B, REVIEWS 2024. [PMID: 38943273 DOI: 10.1089/ten.teb.2024.0124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Abstract
The urethra reconstruction using tissue engineering is a promising approach in clinical and preclinical studies in recent years. Generally, regenerative medicine comprises cells, bioactive agents, and biomaterial scaffolds to reconstruct tissue. For the restoration of extended urethral injury are incorporated autologous grafts or flaps from the skin of the genital area and buccal mucosa are utilized. However, biomaterial grafts with cells or growth factors are investigated to enhance these grafts natural and synthetic biomaterials were investigated for pre-clinical studies in the form of decellularization tissues, nanofiber/ microfiber, film, and foam grafts that determined safety and efficiency. In this regard, skin grafts, bladder epithelium, buccal mucosa, small intestinal submucosa, tissue-engineered buccal mucosa, and polymeric nanofibers in clinical trials were examined, and promising and diverse outcomes were acquired. Even though, one of the challenges of the reconstruction of the urethra is resistance to urine pressure and its ability to be sutured, which could be solved by the proper adjustment of the physicochemical characteristics of the graft. Urethra engineering faces challenges due to necrosis caused by a lack of angiogenesis and fibrosis, which require further investigation in future studies.
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Affiliation(s)
- Mina Habibizadeh
- Kermanshah University of Medical Sciences, Regenerative Medicine Research Center, Kermanshah, Iran (the Islamic Republic of);
| | - Parvin Mohamadi
- Kermanshah University of Medical Sciences, Regenerative Medicine Research Center, Kermanshah, Iran (the Islamic Republic of);
| | - Roshanak Amirian
- Kermanshah University of Medical Sciences, Kermanshah, Kermanshah, Iran (the Islamic Republic of);
| | - Mohammadmehdi Moradi
- Kermanshah University of Medical Sciences, Kermanshah, Kermanshah, Iran (the Islamic Republic of);
| | - Mahmoudreza Moradi
- Kermanshah University of Medical Sciences, Kermanshah, Kermanshah, Iran (the Islamic Republic of);
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Jin Y, Zhao W, Yang M, Fang W, Gao G, Wang Y, Fu Q. Cell-Based Therapy for Urethral Regeneration: A Narrative Review and Future Perspectives. Biomedicines 2023; 11:2366. [PMID: 37760808 PMCID: PMC10525510 DOI: 10.3390/biomedicines11092366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/29/2023] [Accepted: 08/16/2023] [Indexed: 09/29/2023] Open
Abstract
Urethral stricture is a common urological disease that seriously affects quality of life. Urethroplasty with grafts is the primary treatment, but the autografts used in clinical practice have unavoidable disadvantages, which have contributed to the development of urethral tissue engineering. Using various types of seed cells in combination with biomaterials to construct a tissue-engineered urethra provides a new treatment method to repair long-segment urethral strictures. To date, various cell types have been explored and applied in the field of urethral regeneration. However, no optimal strategy for the source, selection, and application conditions of the cells is available. This review systematically summarizes the use of various cell types in urethral regeneration and their characteristics in recent years and discusses possible future directions of cell-based therapies.
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Affiliation(s)
- Yangwang Jin
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Weixin Zhao
- Wake Forest Institute for Regenerative Medicine, Winston Salem, NC 27157, USA
| | - Ming Yang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Wenzhuo Fang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Guo Gao
- Key Laboratory for Thin Film and Micro Fabrication of the Ministry of Education, School of Sensing Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ying Wang
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
| | - Qiang Fu
- Department of Urology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Eastern Institute of Urologic Reconstruction, Shanghai Jiao Tong University, Shanghai 200233, China; (Y.J.)
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Song W, Zhang D, Wu D, Zhong L, Zhu Q, Bai Z, Yu W, Wang C, He Y. Cryopreserved Adipose-Derived Stem Cell Sheets: An Off-the-Shelf Scaffold for Augmenting Tendon-to-Bone Healing in a Rabbit Model of Chronic Rotator Cuff Tear. Am J Sports Med 2023; 51:2005-2017. [PMID: 37227145 DOI: 10.1177/03635465231171682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Adipose-derived stem cell (ADSC) sheets have been shown to promote tendon-to-bone healing. However, conventional laboratory preparation methods for ADSC sheets are time-consuming and risky, which precludes their diverse clinical applications. PURPOSE To explore the utility of off-the-shelf cryopreserved ADSC sheets (c-ADSC sheets) for rotator cuff tendon-to-bone healing. STUDY DESIGN Controlled laboratory study. METHODS The ADSC sheets were cryopreserved and thawed for live/dead double staining, TdT-mediated dUTP Nick-End Labeling (TUNEL) staining, scanning electron microscopy observation, and biomechanical testing. Clone formation, proliferative capacity, and multilineage differentiation of ADSCs within the c-ADSC sheets were assayed to explore the effect of cryopreservation on stem cell properties. A total of 67 rabbits were randomly divided into 4 groups: normal group (without supraspinatus tendon tears; n = 7), control group (repair alone; n = 20), fresh ADSC (f-ADSC) sheet group (repair; n = 20), and c-ADSC sheet group (repair; n = 20). Rabbit bilateral supraspinatus tendon tears were induced to establish a chronic rotator cuff tear model. Gross observation, micro-computed tomography analysis, histological or immunohistochemical tests, and biomechanical tests were conducted at 6 and 12 weeks after repair. RESULTS No significant impairment was seen in the cell viability, morphology, and mechanical properties of c-ADSC sheets when compared with f-ADSC sheets. The stem cell properties of ADSC sheets also were preserved by cryopreservation. At 6 and 12 weeks after the repair, the f-ADSC and c-ADSC sheet groups showed superior bone regeneration, higher histological scores, larger fibrocartilage areas, more mature collagen, and better biomechanical results compared with the control group. No obvious difference was seen between the f-ADSC and c-ADSC sheet groups in terms of bone regeneration, histological score, fibrocartilage formation, and biomechanical tests. CONCLUSION c-ADSC sheets, an off-the-shelf scaffold with a high potential for clinical translational application, can effectively promote rotator cuff tendon-to-bone healing. CLINICAL RELEVANCE Programmed cryopreservation of ADSC sheets is an efficient off-the-shelf scaffold for rotator cuff tendon-to-bone healing.
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Affiliation(s)
- Wei Song
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongliang Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Di Wu
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Zhong
- Department of Nursing, Medical College of Shihezi University, Shihezi, China
| | - Qi Zhu
- Department of Orthopedic Surgery, Jinshan District Central Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Zhenlong Bai
- Department of Orthopedic Surgery, Jinshan District Central Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Weilin Yu
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chongyang Wang
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yaohua He
- Department of Orthopedic Surgery, Jinshan District Central Hospital Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, China
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Fitriani N, Wilar G, Narsa AC, Mohammed AFA, Wathoni N. Application of Amniotic Membrane in Skin Regeneration. Pharmaceutics 2023; 15:pharmaceutics15030748. [PMID: 36986608 PMCID: PMC10053812 DOI: 10.3390/pharmaceutics15030748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/08/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023] Open
Abstract
Amniotic membrane (AM) is an avascular structure composed of three different layers, which contain collagen, extracellular matrix, and biologically active cells (stem cells). Collagen, a naturally occurring matrix polymer, provides the structural matrix/strength of the amniotic membrane. Tissue remodeling is regulated by growth factors, cytokines, chemokines, and other regulatory molecules produced by endogenous cells within AM. Therefore, AM is considered an attractive skin-regenerating agent. This review discusses the application of AM in skin regeneration, including its preparation for application to the skin and its mechanisms of therapeutic healing in the skin. This review involved collecting research articles that have been published in several databases, including Google Scholar, PubMed, Science Direct, and Scopus. The search was conducted by using the keywords ‘amniotic membrane skin’, ‘amniotic membrane wound healing’, ‘amniotic membrane burn’, ‘amniotic membrane urethral defects’, ‘amniotic membrane junctional epidermolysis bullosa’, and ‘amniotic membrane calciphylaxis’. Ultimately, 87 articles are discussed in this review. Overall, AM has various activities that help in the regeneration and repair of damaged skin.
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Affiliation(s)
- Nurul Fitriani
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
- Pharmaceutical Research and Development Laboratory of FARMAKA TROPIS, Faculty of Pharmacy, Universitas Mulawarman, Samarinda 75119, Indonesia
| | - Gofarana Wilar
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Angga Cipta Narsa
- Pharmaceutical Research and Development Laboratory of FARMAKA TROPIS, Faculty of Pharmacy, Universitas Mulawarman, Samarinda 75119, Indonesia
| | - Ahmed F. A. Mohammed
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
- Correspondence: ; Tel.: +62-22-842-888-888
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Liu Z, Jiang X, Wang K, Zhou Y, Li T, Gao J, Wang L. Preparation of fish decalcified bone matrix and its bone repair effect in rats. Front Bioeng Biotechnol 2023; 11:1134992. [PMID: 36860886 PMCID: PMC9968849 DOI: 10.3389/fbioe.2023.1134992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Decalcified bone matrix has great potential and application prospects in the repair of bone defects due to its good biocompatibility and osteogenic activity. In order to verify whether fish decalcified bone matrix (FDBM) has similar structure and efficacy, this study used the principle of HCl decalcification to prepare the FDBM by using fresh halibut bone as the raw material, and then degreasing, decalcifying, dehydrating and freeze-drying it. Its physicochemical properties were analyzed by scanning electron microscopy and other methods, and then its biocompatibility was tested by in vitro and in vivo experiments. At the same time, an animal model of femoral defect in rats was established, and commercially available bovine decalcified bone matrix (BDBM) was used as the control group, and the area of femoral defect in rats was filled with the two materials respectively. The changes in the implant material and the repair of the defect area were observed by various aspects such as imaging and histology, and its osteoinductive repair capacity and degradation properties were studied. The experiments showed that the FDBM is a form of biomaterial with high bone repair capacity and lower economic cost than other related materials such as bovine decalcified bone matrix. FDBM is simpler to extract and the raw materials are more abundant, which can greatly improve the utilization of marine resources. Our results show that FDBM not only has a good repair effect on bone defects, but also has good physicochemical properties, biosafety and cell adhesion, and is a promising medical biomaterial for the treatment of bone defects, which can basically meet the clinical requirements for bone tissue repair engineering materials.
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Affiliation(s)
- Zichao Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Xiaorui Jiang
- Department of Hand and foot Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Kai Wang
- Department of Hand and foot Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Yongshun Zhou
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Tingting Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China
| | - Jianfeng Gao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, China,*Correspondence: Jianfeng Gao, ; Lei Wang,
| | - Lei Wang
- The Affiliated Hospital of Weifang Medical University, Yantai, China,*Correspondence: Jianfeng Gao, ; Lei Wang,
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Recent Advances in Cell Sheet Engineering: From Fabrication to Clinical Translation. Bioengineering (Basel) 2023; 10:bioengineering10020211. [PMID: 36829705 PMCID: PMC9952256 DOI: 10.3390/bioengineering10020211] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/26/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Cell sheet engineering, a scaffold-free tissue fabrication technique, has proven to be an important breakthrough technology in regenerative medicine. Over the past two decades, the field has developed rapidly in terms of investigating fabrication techniques and multipurpose applications in regenerative medicine and biological research. This review highlights the most important achievements in cell sheet engineering to date. We first discuss cell sheet harvesting systems, which have been introduced in temperature-responsive surfaces and other systems to overcome the limitations of conventional cell harvesting methods. In addition, we describe several techniques of cell sheet transfer for preclinical (in vitro and in vivo) and clinical trials. This review also covers cell sheet cryopreservation, which allows short- and long-term storage of cells. Subsequently, we discuss the cell sheet properties of angiogenic cytokines and vasculogenesis. Finally, we discuss updates to various applications, from biological research to clinical translation. We believe that the present review, which shows and compares fundamental technologies and recent advances in cell engineering, can potentially be helpful for new and experienced researchers to promote the further development of tissue engineering in different applications.
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Tan Q, Le H, Tang C, Zhang M, Yang W, Hong Y, Wang X. Tailor-made natural and synthetic grafts for precise urethral reconstruction. J Nanobiotechnology 2022; 20:392. [PMID: 36045428 PMCID: PMC9429763 DOI: 10.1186/s12951-022-01599-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 08/13/2022] [Indexed: 11/10/2022] Open
Abstract
Injuries to the urethra can be caused by malformations, trauma, inflammation, or carcinoma, and reconstruction of the injured urethra is still a significant challenge in clinical urology. Implanting grafts for urethroplasty and end-to-end anastomosis are typical clinical interventions for urethral injury. However, complications and high recurrence rates remain unsatisfactory. To address this, urethral tissue engineering provides a promising modality for urethral repair. Additionally, developing tailor-made biomimetic natural and synthetic grafts is of great significance for urethral reconstruction. In this work, tailor-made biomimetic natural and synthetic grafts are divided into scaffold-free and scaffolded grafts according to their structures, and the influence of different graft structures on urethral reconstruction is discussed. In addition, future development and potential clinical application strategies of future urethral reconstruction grafts are predicted.
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Affiliation(s)
- Qinyuan Tan
- Department of Urology, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130061, People's Republic Of China
| | - Hanxiang Le
- Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun, 130041, People's Republic Of China
| | - Chao Tang
- Department of Urology, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130061, People's Republic Of China
| | - Ming Zhang
- Department of Urology, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130061, People's Republic Of China
| | - Weijie Yang
- Department of Urology, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130061, People's Republic Of China
| | - Yazhao Hong
- Department of Pediatric Surgery, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Street, Nanjing, 210029, People's Republic Of China.
| | - Xiaoqing Wang
- Department of Urology, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130061, People's Republic Of China.
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Li X, Li P, Wang C, Shang T, Han H, Tong Y, Kang Y, Fang J, Cui L. A thermo-sensitive and injectable hydrogel derived from a decellularized amniotic membrane to prevent intrauterine adhesion by accelerating endometrium regeneration. Biomater Sci 2022; 10:2275-2286. [PMID: 35363229 DOI: 10.1039/d1bm01791h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Objective To investigate the effect of the injectable hydrogel generated from a decellularized amniotic membrane (dAM)-gel on preventing the development of an intrauterine adhesion (IUA) on a rat model. Methods The dAM-gel was developed from an amniotic membrane (AM) by a process of decellularization, lyophilization, and enzyme digestion. Histological analysis, residual component determination, electronic microscopy and turbidimetric gelation kinetics analysis were performed to characterize the dAM-gel. The proliferation and migration of endometrial cells on the dAM-gel coated surface was examined. IUA was surgically created in rats and received dAM-gel injection immediately after wound creation. Gene profiles of epithelial cells cultured on the dAM-gel coated surface were evaluated by RNA-sequencing. Results The collagen content was retained in the dAM-gel, while the GAG content decreased significantly compared with fresh AM (fAM). Gelation of the gel was temperature-sensitive and showed a matrix concentration-dependent manner. Transplantation of the dAM-gel significantly reduced fibrosis of IUA with a recovered uterine cavity, regenerated endometrium and increased microvascular density, along with elevated pregnancy rate compared with endometrium damage groups. Migration of epithelial cells was greatly promoted by the dAM-gel in a surgically created uterine wound model. By comparing the RNA-sequence data of epithelial cells that were cultured on dAM-gel coated and non-coated surfaces, respectively, distinct gene profiles relative to the cellular migration, adhesion and angiogenesis and involved signaling pathway were identified. Conclusions The injectable dAM-gel developed from AM offers a promising option for preventing endometrial fibrosis by promotion of the re-epithelialization of the damaged endometrium.
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Affiliation(s)
- Xiaoyu Li
- Department of Plastic and Cosmetic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
| | - Peilin Li
- Department of Plastic and Cosmetic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
| | - Can Wang
- Department of Neuro-oncology, Cancer Center, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
| | - Ting Shang
- Department of Plastic and Cosmetic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
| | - Haotian Han
- Department of Plastic and Cosmetic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
| | - Yongjuan Tong
- Central Laboratory, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - Yubin Kang
- Department of Plastic and Cosmetic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
| | - Jianjun Fang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of the Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Lei Cui
- Department of Plastic and Cosmetic Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China. .,Key Laboratory of Aesthetics Medicine, Chinese Association of Plastic and Aesthetics, Beijing 100038, China
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Lv K, Wang L, He X, Li W, Han L, Qin S. Application of Tilapia Skin Acellular Dermal Matrix to Induce Acute Skin Wound Repair in Rats. Front Bioeng Biotechnol 2022; 9:792344. [PMID: 35237588 PMCID: PMC8882825 DOI: 10.3389/fbioe.2021.792344] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022] Open
Abstract
Extracellular matrix (ECM) material with good biological activity is essential to simulate cell growth microenvironment, induce cell infiltration and angiogenesis, and promote the repair of large area acute skin wound. In this study, tilapia skin acellular dermal matrix (TADM) was prepared to simulate ECM microenvironment, which can promote substantial area acute wound healing in rats. The main component of TADM is type I collagen, which has good physical and chemical properties, biological activity and cell adhesion. TADM is a form of biomaterial with low immunogenicity, low risk of prion infection and lower economic cost than other related materials such as mammalian collagen biomaterials. Our results show that TADM can guide cell infiltration, angiogenesis, regulate the expression and secretion of inflammatory and skin repair correlated factors to promote tissue healing.
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Affiliation(s)
- Kangning Lv
- School of Ocean, Yantai University, Yantai, China
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Lei Wang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Xiaoli He
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
- School of Life Science, Yantai University, Yantai, China
| | - Wenjun Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Lei Han
- School of Life Science, Yantai University, Yantai, China
| | - Song Qin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
- *Correspondence: Song Qin,
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Huang R, Xu L, Wang Y, Zhang Y, Lin B, Lin Z, Li J, Li X. Efficient fabrication of stretching hydrogels with programmable strain gradients as cell sheet delivery vehicles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112415. [PMID: 34579924 DOI: 10.1016/j.msec.2021.112415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/05/2021] [Accepted: 08/30/2021] [Indexed: 01/21/2023]
Abstract
Fabricating functional cell sheets with excellent mechanical strength for tissue regeneration remains challenging. Therefore, we devised a novel 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide/N-hydroxy-succinimide crosslinked hydrogel carrier composed of gelatin (Ge) and beta-cyclodextrin (β-CD) that promoted the adhesion and proliferation of keratinocytes (Kcs) compared with those cultured on a Ge hydrogel due to significantly higher pore size, porosity, and stiffness, as confirmed using field emission scanning electron microscopy (FE-SEM) and shear wave elastography (SWE). Upon exposure to a programmable gradient microenvironment, cells displayed a stress/strain-dependent spatial-temporal distribution of extended cellular phenotypes and cytoskeletons. The promoted proliferation of Kcs and the increased retention of the undifferentiated cell phenotype on Ge-β-CD composite hydrogels under a 15% strain led to the accelerated detachment of cell sheets with retained cell-cell junctions. Moreover, the stretch-triggered upregulated expression of phosphorylated yes-associated protein (YAP) 1 suggested that this effect might be associated with the mechanical stimulation-induced activation of the YAP pathway.
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Affiliation(s)
- Rong Huang
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China
| | - Lirong Xu
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China
| | - Yan Wang
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China
| | - Yuheng Zhang
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China
| | - Bin Lin
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China
| | - Zhixiao Lin
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China
| | - Jinqing Li
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China.
| | - Xueyong Li
- Department of Burn and Plastic Surgery, Second Affiliated Hospital, Air Force Medical University, Xi'an 710038, China.
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