1
|
Berry CE, Le T, An N, Griffin M, Januszyk M, Kendig CB, Fazilat AZ, Churukian AA, Pan PM, Wan DC. Pharmacological and cell-based treatments to increase local skin flap viability in animal models. J Transl Med 2024; 22:68. [PMID: 38233920 PMCID: PMC10792878 DOI: 10.1186/s12967-024-04882-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/10/2024] [Indexed: 01/19/2024] Open
Abstract
Local skin flaps are frequently employed for wound closure to address surgical, traumatic, congenital, or oncologic defects. (1) Despite their clinical utility, skin flaps may fail due to inadequate perfusion, ischemia/reperfusion injury (IRI), excessive cell death, and associated inflammatory response. (2) All of these factors contribute to skin flap necrosis in 10-15% of cases and represent a significant surgical challenge. (3, 4) Once flap necrosis occurs, it may require additional surgeries to remove the entire flap or repair the damage and secondary treatments for infection and disfiguration, which can be costly and painful. (5) In addition to employing appropriate surgical techniques and identifying healthy, well-vascularized tissue to mitigate the occurrence of these complications, there is growing interest in exploring cell-based and pharmacologic augmentation options. (6) These agents typically focus on preventing thrombosis and increasing vasodilation and angiogenesis while reducing inflammation and oxidative stress. Agents that modulate cell death pathways such as apoptosis and autophagy have also been investigated. (7) Implementation of drugs and cell lines with potentially beneficial properties have been proposed through various delivery techniques including systemic treatment, direct wound bed or flap injection, and topical application. This review summarizes pharmacologic- and cell-based interventions to augment skin flap viability in animal models, and discusses both translatability challenges facing these therapies and future directions in the field of skin flap augmentation.
Collapse
Affiliation(s)
- Charlotte E Berry
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Thalia Le
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Nicholas An
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Michelle Griffin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Micheal Januszyk
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Carter B Kendig
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Alexander Z Fazilat
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Andrew A Churukian
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Phoebe M Pan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA.
| |
Collapse
|
2
|
Wu M, Chen L, Qi Y, Ci H, Mou S, Yang J, Yuan Q, Yao W, Wang Z, Sun J. Human umbilical cord mesenchymal stem cell promotes angiogenesis via integrin β1/ERK1/2/HIF-1α/VEGF-A signaling pathway for off-the-shelf breast tissue engineering. Stem Cell Res Ther 2022; 13:99. [PMID: 35255978 PMCID: PMC8900416 DOI: 10.1186/s13287-022-02770-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/24/2022] [Indexed: 01/02/2023] Open
Abstract
Background Mesenchymal stem cells (MSC)-based tissue engineered breast represent the visible future for breast reconstruction after mastectomy. However, autologous MSCs might not be appropriate for the large graft construction due to cell senescence during excessive cell expansion, thus hindering its further off-the-shelf application. The human umbilical cord mesenchymal stem cells (hUCMSCs) have been found to induce low immune response and can be easily stored, making them ideal for off-the-shelf tissue engineering application. Here, we explored the feasibility of using umbilical cord mesenchymal stem cells as tissue-engineered breast seed cells.
Methods The allogenic hUCMSCs were injected into transplanted fat tissue with or without breast scaffolds as an alternative for breast tissue engineering in vivo, and its potential mechanism of angiogenesis in vitro was explored. Results Transplantation of hUCMSCs promoted proliferation, migration, and angiogenesis of human umbilical vein endothelial cells (HUVECs) through paracrine mechanism by activating the integrin β1/ERK1/2/HIF-1α/VEGF-A signaling pathway. Histological examination of grafted fat revealed that the group which received hUCMSCs transplantation had more fat tissue [(93.60 ± 2.40) %] and fewer MAC2+CD206− M1 macrophages [(0.50 ± 0.47) cells/field] compared to the control group [fat tissue (45.42 ± 5.96) and macrophage cells/field (5.00 ± 2.23)]. Moreover, the hUCMSCs- labeled with a tracing dye differentiated into adipocytes and vascular endothelial cells in the adipose tissue. When applied to the tissue-engineered breast with a scaffold, the group treated with hUCMSCs had more adipose tissues and CD31+ cells than the control group. Conclusions These results demonstrate that allogeneic hUCMSCs promote the regeneration of adipose tissue and can be used to construct a tissue engineered breast. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02770-x.
Collapse
Affiliation(s)
- Mian Wu
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.,Department of Thyroid and Breast Surgery, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, People's Republic of China
| | - Lifeng Chen
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, People's Republic of China
| | - Yuhan Qi
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China
| | - Hai Ci
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, People's Republic of China
| | - Shan Mou
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, People's Republic of China
| | - Jie Yang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, People's Republic of China
| | - Qiaoyu Yuan
- Wuhan Optics Valley Zhongyuan Concord Cell Gene Technology Co., Ltd, Wuhan, People's Republic of China
| | - Weiqi Yao
- National Industrial Base for Stem Cell Engineering Products, Tianjin, People's Republic of China.,Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, People's Republic of China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China. .,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, People's Republic of China.
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China. .,Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, People's Republic of China.
| |
Collapse
|
3
|
Pichlsberger M, Jerman UD, Obradović H, Tratnjek L, Macedo AS, Mendes F, Fonte P, Hoegler A, Sundl M, Fuchs J, Schoeberlein A, Kreft ME, Mojsilović S, Lang-Olip I. Systematic Review of the Application of Perinatal Derivatives in Animal Models on Cutaneous Wound Healing. Front Bioeng Biotechnol 2021; 9:742858. [PMID: 34631683 PMCID: PMC8498585 DOI: 10.3389/fbioe.2021.742858] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/06/2021] [Indexed: 12/21/2022] Open
Abstract
Knowledge of the beneficial effects of perinatal derivatives (PnD) in wound healing goes back to the early 1900s when the human fetal amniotic membrane served as a biological dressing to treat burns and skin ulcerations. Since the twenty-first century, isolated cells from perinatal tissues and their secretomes have gained increasing scientific interest, as they can be obtained non-invasively, have anti-inflammatory, anti-cancer, and anti-fibrotic characteristics, and are immunologically tolerated in vivo. Many studies that apply PnD in pre-clinical cutaneous wound healing models show large variations in the choice of the animal species (e.g., large animals, rodents), the choice of diabetic or non-diabetic animals, the type of injury (full-thickness wounds, burns, radiation-induced wounds, skin flaps), the source and type of PnD (placenta, umbilical cord, fetal membranes, cells, secretomes, tissue extracts), the method of administration (topical application, intradermal/subcutaneous injection, intravenous or intraperitoneal injection, subcutaneous implantation), and the type of delivery systems (e.g., hydrogels, synthetic or natural biomaterials as carriers for transplanted cells, extracts or secretomes). This review provides a comprehensive and integrative overview of the application of PnD in wound healing to assess its efficacy in preclinical animal models. We highlight the advantages and limitations of the most commonly used animal models and evaluate the impact of the type of PnD, the route of administration, and the dose of cells/secretome application in correlation with the wound healing outcome. This review is a collaborative effort from the COST SPRINT Action (CA17116), which broadly aims at approaching consensus for different aspects of PnD research, such as providing inputs for future standards for the preclinical application of PnD in wound healing.
Collapse
Affiliation(s)
- Melanie Pichlsberger
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Urška Dragin Jerman
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Hristina Obradović
- Group for Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Larisa Tratnjek
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Ana Sofia Macedo
- LAQV, REQUIMTE, Department of Chemical Sciences-Applied Chemistry Lab, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Francisca Mendes
- iBB-Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.,Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Pedro Fonte
- iBB-Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.,Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.,Center for Marine Sciences (CCMar), Faculty of Sciences and Technology, University of Algarve, Faro, Portugal.,Department of Chemistry and Pharmacy, Faculty of Sciences and Technology, University of Algarve, Faro, Portugal
| | - Anja Hoegler
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Monika Sundl
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Julia Fuchs
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Andreina Schoeberlein
- Department of Obstetrics and Feto-maternal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Mateja Erdani Kreft
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Slavko Mojsilović
- Group for Hematology and Stem Cells, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Ingrid Lang-Olip
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| |
Collapse
|
4
|
Li Y, Jiang QL, Van der Merwe L, Lou DH, Lin C. Preclinical efficacy of stem cell therapy for skin flap: a systematic review and meta-analysis. Stem Cell Res Ther 2021; 12:28. [PMID: 33413598 PMCID: PMC7791712 DOI: 10.1186/s13287-020-02103-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 12/14/2020] [Indexed: 12/18/2022] Open
Abstract
Background A skin flap is one of the most critical surgical techniques for the restoration of cutaneous defects. However, the distal necrosis of the skin flap severely restricts the clinical application of flap surgery. As there is no consensus on the treatment methods to prevent distal necrosis of skin flaps, more effective and feasible interventions to prevent skin flaps from necrosis are urgently needed. Stem therapy as a potential method to improve the survival rate of skin flaps is receiving increasing attention. Methods This review followed the recommendations from the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statements. Twenty studies with 500 animals were included by searching Web of Science, EMBASE, PubMed, and Cochrane Library databases, up until October 8, 2020. Moreover, the references of the included articles were searched manually to obtain other studies. All analyses were conducted using Review Manager V.5.3 software. Results Meta-analysis of all 20 studies demonstrated stem cell treatment has significant effects on reducing necrosis of skin flap compared with the control group (SMD: 3.20, 95% CI 2.47 to 3.93). Besides, subgroup analysis showed differences in the efficacy of stem cells in improving the survival rate of skin flaps in areas of skin flap, cell type, transplant types, and method of administration of stem cells. The meta-analysis also showed that stem cell treatment had a significant effect on increasing blood vessel density (SMD: 2.96, 95% CI 2.21 to 3.72) and increasing the expression of vascular endothelial growth factor (VEGF, SMD: 4.34, 95% CI 2.48 to 6.1). Conclusions The preclinical evidence of our systematic review indicate that stem cell-based therapy is effective for promoting early angiogenesis by up regulating VEGF and ultimately improving the survival rate of skin flap. In summary, small area skin flap, the administration method of intra-arterial injection, ASCs and MSCs, and xenogenic stem cells from humans showed more effective for the survival of animal skin flaps. In general, stem cell-based therapy may be a promising method to prevent skin flap necrosis.
Collapse
Affiliation(s)
- Yuan Li
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Qi-Lin Jiang
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Leanne Van der Merwe
- School of International Studies, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Dong-Hao Lou
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Cai Lin
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, Zhejiang, 325000, People's Republic of China.
| |
Collapse
|
5
|
Zhang P, Feng J, Liao Y, Cai J, Zhou T, Sun M, Gao J, Gao K. Ischemic flap survival improvement by composition-selective fat grafting with novel adipose tissue derived product - stromal vascular fraction gel. Biochem Biophys Res Commun 2018; 495:2249-2256. [DOI: 10.1016/j.bbrc.2017.11.196] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 11/29/2017] [Indexed: 12/22/2022]
|
6
|
Karaöz E, İnci Ç. Umbilical Cord Tissue and Wharton’s Jelly Mesenchymal Stem Cells Properties and Therapeutic Potentials. PERINATAL TISSUE-DERIVED STEM CELLS 2016. [DOI: 10.1007/978-3-319-46410-7_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
7
|
Zhou J, Tian G, Wang J, Luo X, Zhang S, Li J, Li L, Xu B, Zhu F, Wang X, Jia C, Zhao W, Zhao D, Xu A. Neural cell injury microenvironment induces neural differentiation of human umbilical cord mesenchymal stem cells. Neural Regen Res 2014; 7:2689-97. [PMID: 25337115 PMCID: PMC4200737 DOI: 10.3969/j.issn.1673-5374.2012.34.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 11/23/2012] [Indexed: 12/31/2022] Open
Abstract
This study aimed to investigate the neural differentiation of human umbilical cord mesenchymal stem cells (hUCMSCs) under the induction of injured neural cells. After in vitro isolation and culture, passage 5 hUCMSCs were used for experimentation. hUCMSCs were co-cultured with normal or Aβ1-40-injured PC12 cells, PC12 cell supernatant or PC12 cell lysate in a Transwell co-culture system. Western blot analysis and flow cytometry results showed that choline acetyltransferase and microtubule-associated protein 2, a specific marker for neural cells, were expressed in hUCMSCs under various culture conditions, and highest expression was observed in the hUCMSCs co-cultured with injured PC12 cells. Choline acetyltransferase and microtubule-associated protein 2 were not expressed in hUCMSCs cultured alone (no treatment). Cell Counting Kit-8 assay results showed that hUCMSCs under co-culture conditions promoted the proliferation of injured PC12 cells. These findings suggest that the microenvironment during neural tissue injury can effectively induce neural cell differentiation of hUCMSCs. These differentiated hUCMSCs likely accelerate the repair of injured neural cells.
Collapse
Affiliation(s)
- Jin Zhou
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Guoping Tian
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Jinge Wang
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Xiaoguang Luo
- First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Siyang Zhang
- College of Basic Medical Sciences, China Medical University, Shenyang 110001, Liaoning Province, China
| | - Jianping Li
- Liaoning Provincial Blood Center, Shenyang 110044, Liaoning Province, China
| | - Li Li
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Bing Xu
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Feng Zhu
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Xia Wang
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Chunhong Jia
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Weijin Zhao
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Danyang Zhao
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Aihua Xu
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| |
Collapse
|
8
|
Biazar E. Use of umbilical cord and cord blood-derived stem cells for tissue repair and regeneration. Expert Opin Biol Ther 2014; 14:301-10. [PMID: 24456082 DOI: 10.1517/14712598.2014.867943] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Potential use of umbilical cord (UC) is one of the most exciting frontiers in medicine for repairing damaged tissues. UC and cord blood-derived stem cells are the world's largest potential sources of stem cells. UC contains a mixture of stem and progenitor cells at different lineage commitment stages and UC has been verified as a candidate for cell-based therapies and tissue engineering applications due to the capability of these cells for extensive self-renewal and multi-lineage character in differentiation potential. AREAS COVERED UC-based repair or regeneration of organs (i.e., heart, nerve, skin, etc.) is a high-priority research worldwide. EXPERT OPINION The aim of this review is to summarize the knowledge about UC with main focus on its applications for tissue repair and regeneration.
Collapse
Affiliation(s)
- Esmaeil Biazar
- Islamic Azad University, Department of Biomedical Engineering, Tonekabon Branch , Tonekabon , Iran +00981924271105 ;
| |
Collapse
|
9
|
Killat J, Reimers K, Choi CY, Jahn S, Vogt PM, Radtke C. Cultivation of keratinocytes and fibroblasts in a three-dimensional bovine collagen-elastin matrix (Matriderm®) and application for full thickness wound coverage in vivo. Int J Mol Sci 2013; 14:14460-74. [PMID: 23852021 PMCID: PMC3742254 DOI: 10.3390/ijms140714460] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/18/2013] [Accepted: 06/25/2013] [Indexed: 01/21/2023] Open
Abstract
New skin substitutes for burn medicine or reconstructive surgery pose an important issue in plastic surgery. Matriderm® is a clinically approved three-dimensional bovine collagen-elastin matrix which is already used as a dermal substitute of full thickness burn wounds. The drawback of an avital matrix is the limited integration in full thickness skin defects, depending on the defect size. To further optimize this process, Matriderm® has also been studied as a matrix for tissue engineering of skin albeit long-term cultivation of the matrix with cells has been difficult. Cells have generally been seeded onto the matrix with high cell loss and minimal time-consuming migration. Here we developed a cell seeded skin equivalent after microtransfer of cells directly into the matrix. First, cells were cultured, and microinjected into Matriderm®. Then, cell viability in the matrix was determined by histology in vitro. As a next step, the skin substitute was applied in vivo into a full thickness rodent wound model. The wound coverage and healing was observed over a period of two weeks followed by histological examination assessing cell viability, proliferation and integration into the host. Viable and proliferating cells could be found throughout the entire matrix. The presented skin substitute resembles healthy skin in morphology and integrity. Based on this study, future investigations are planned to examine behaviour of epidermal stem cells injected into a collagen-elastin matrix under the aspects of establishment of stem cell niches and differentiation.
Collapse
Affiliation(s)
- Jasper Killat
- Department of Plastic, Hand- and Reconstructive Surgery, Hannover Medical School, Hannover D-30659, Germany.
| | | | | | | | | | | |
Collapse
|