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Mazio C, Mavaro I, Palladino A, Casale C, Urciuolo F, Banfi A, D'Angelo L, Netti PA, de Girolamo P, Imparato G, Attanasio C. Rapid innervation and physiological epidermal regeneration by bioengineered dermis implanted in mouse. Mater Today Bio 2024; 25:100949. [PMID: 38298559 PMCID: PMC10827562 DOI: 10.1016/j.mtbio.2024.100949] [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: 09/25/2023] [Revised: 01/02/2024] [Accepted: 01/06/2024] [Indexed: 02/02/2024] Open
Abstract
Tissue-engineered skin substitutes are promising tools to cover large and deep skin defects. However, the lack of a synergic and fast regeneration of the vascular network, nerves, and skin appendages limits complete skin healing and impairs functional recovery. It has been highlighted that an ideal skin substitute should mimic the structure of the native tissue to enhance clinical effectiveness. Here, we produced a pre-vascularized dermis (PVD) comprised of fibroblasts embedded in their own extracellular matrix (ECM) and a capillary-like network. Upon implantation in a mouse full-thickness skin defect model, we observed a very early innervation of the graft in 2 weeks. In addition, mouse capillaries and complete epithelialization were detectable as early as 1 week after implantation and, skin appendages developed in 2 weeks. These anatomical features underlie the interaction with the skin nerves, thus providing a further cue for reinnervation guidance. Further, the graft displays mechanical properties, collagen density, and assembly features very similar to the host tissue. Taken together our data show that the pre-existing ECM components of the PVD, physiologically organized and assembled similarly to the native tissue, support a rapid regeneration of dermal tissue. Therefore, our results suggest a promising potential for PVD in skin regeneration.
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Affiliation(s)
- Claudia Mazio
- Istituto Italiano di Tecnologia, Center for Advanced Biomaterials for HealthCare@CRIB, Italy
| | - Isabella Mavaro
- Istituto Italiano di Tecnologia, Center for Advanced Biomaterials for HealthCare@CRIB, Italy
- University of Naples Federico II, Department of Veterinary Medicine and Animal Production, Italy
| | - Antonio Palladino
- University of Naples Federico II, Department of Agricultural Sciences, Italy
| | - Costantino Casale
- University of Naples Federico II, Interdisciplinary Research Centre on Biomaterials (CRIB), Italy
| | - Francesco Urciuolo
- University of Naples Federico II, Department of Chemical, Materials and Industrial Production Engineering, Italy
| | - Andrea Banfi
- Basel University Hospital and University of Basel, Department of Biomedicine, Switzerland
| | - Livia D'Angelo
- University of Naples Federico II, Department of Veterinary Medicine and Animal Production, Italy
| | - Paolo A. Netti
- Istituto Italiano di Tecnologia, Center for Advanced Biomaterials for HealthCare@CRIB, Italy
- University of Naples Federico II, Interdisciplinary Research Centre on Biomaterials (CRIB), Italy
- University of Naples Federico II, Department of Chemical, Materials and Industrial Production Engineering, Italy
| | - Paolo de Girolamo
- University of Naples Federico II, Department of Veterinary Medicine and Animal Production, Italy
| | - Giorgia Imparato
- Istituto Italiano di Tecnologia, Center for Advanced Biomaterials for HealthCare@CRIB, Italy
| | - Chiara Attanasio
- University of Naples Federico II, Department of Veterinary Medicine and Animal Production, Italy
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2
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Zhang M, Xing J, Zhong Y, Zhang T, Liu X, Xing D. Advanced function, design and application of skin substitutes for skin regeneration. Mater Today Bio 2024; 24:100918. [PMID: 38223459 PMCID: PMC10784320 DOI: 10.1016/j.mtbio.2023.100918] [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: 10/02/2023] [Revised: 11/14/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024] Open
Abstract
The development of skin substitutes aims to replace, mimic, or improve the functions of human skin, regenerate damaged skin tissue, and replace or enhance skin function. This includes artificial skin, scaffolds or devices designed for treatment, imitation, or improvement of skin function in wounds and injuries. Therefore, tremendous efforts have been made to develop functional skin substitutes. However, there is still few reports systematically discuss the relationship between the advanced function and design requirements. In this paper, we review the classification, functions, and design requirements of artificial skin or skin substitutes. Different manufacturing strategies for skin substitutes such as hydrogels, 3D/4D printing, electrospinning, microfluidics are summarized. This review also introduces currently available skin substitutes in clinical trials and on the market and the related regulatory requirements. Finally, the prospects and challenges of skin substitutes in the field of tissue engineering are discussed.
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Affiliation(s)
- Miao Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Jiyao Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Yingjie Zhong
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Tingting Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Xinlin Liu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
- School of Life Sciences, Tsinghua University, Beijing 100084, China
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3
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Xia W, Lin C, Tu Z, Li Y, Shen G. Preparation of laser microporous porcine acellular dermal matrix and observation of wound transplantation. Cell Tissue Bank 2023; 24:191-202. [PMID: 35804250 PMCID: PMC10006019 DOI: 10.1007/s10561-022-10023-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 06/20/2022] [Indexed: 11/02/2022]
Abstract
To prepare a new type of porcine acellular dermis matrix (PADM) with the new laser microporous technique and verify its safety and feasibility. A novel porcine acellular dermis matrix (ADM) was prepared by using sequential combined decellularization of trypsin, neutral protease and SDS solution method and fully rinsed with ultrasonic wave. Specific laser microporous technology was used to prepare the laser micropore porcine acellular dermal matrix (LPADM). SD rats were chose as the animal models and autologous skin was transplanted by one-step method to observe and detect the graft activity, immunogenicity and vascularization degree of the novel PADM. A porcelain white, shiny, soft and elastic dermal matrix was prepared in this study, the results showed low DNA residue and low cytotoxicity. HE staining and SEM observation revealed that the PADM had neither residual cells nor cell fragments, while the collagen bundles were intact and orderly arranged. All the SD rats survived. No infection or skin allergy was found after surgery. None of the animals lost weight. Histological examination showed that the LPADM was fully vascularized with little tissue destruction in the experiment group. Immunohistochemical staining for CD31 showed ideal vascularization in the experiment group, and immunohistochemical staining for TNF-α showed there were no statistical significance of inflammatory reaction in both groups. This study demonstrated that the novel PADM prepared by sequential combined decellularization of trypsin, neutral protease and SDS solution method and new laser microporous technique was effective and safe in animal transplantation.
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Affiliation(s)
- Weidong Xia
- The Burn Plastic Surgery, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China
| | - Cai Lin
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, 325000, Zhejiang, China
| | - Zhuolong Tu
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, 325000, Zhejiang, China
| | - Yuan Li
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Nan Bai Xiang, Wenzhou, 325000, Zhejiang, China
| | - Guoliang Shen
- The Burn Plastic Surgery, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215006, China.
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4
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Laurent A, Rey M, Scaletta C, Abdel-Sayed P, Michetti M, Flahaut M, Raffoul W, de Buys Roessingh A, Hirt-Burri N, Applegate LA. Retrospectives on Three Decades of Safe Clinical Experience with Allogeneic Dermal Progenitor Fibroblasts: High Versatility in Topical Cytotherapeutic Care. Pharmaceutics 2023; 15:pharmaceutics15010184. [PMID: 36678813 PMCID: PMC9866885 DOI: 10.3390/pharmaceutics15010184] [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: 09/30/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Allogeneic dermal progenitor fibroblasts constitute cytotherapeutic contenders for modern cutaneous regenerative medicine. Based on advancements in the relevant scientific, technical, and regulatory fields, translational developments have slowly yet steadily led to the clinical application of such biologicals and derivatives. To set the appropriate general context, the first aim of this study was to provide a current global overview of approved cell and gene therapy products, with an emphasis on cytotherapies for cutaneous application. Notable advances were shown for North America, Europe, Iran, Japan, and Korea. Then, the second and main aim of this study was to perform a retrospective analysis on the various applications of dermal progenitor fibroblasts and derivatives, as clinically used under the Swiss progenitor cell transplantation program for the past three decades. Therein, the focus was set on the extent and versatility of use of the therapies under consideration, their safety parameters, as well as formulation options for topical application. Quantitative and illustrative data were summarized and reported for over 300 patients treated with various cell-based or cell-derived preparations (e.g., progenitor biological bandages or semi-solid emulsions) in Lausanne since 1992. Overall, this study shows the strong current interest in biological-based approaches to cutaneous regenerative medicine from a global developmental perspective, as well as the consolidated local clinical experience gathered with a specific and safe allogeneic cytotherapeutic approach. Taken together, these current and historical elements may serve as tangible working bases for the further optimization of local and modern translational pathways for the provision of topical cytotherapeutic care.
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Affiliation(s)
- Alexis Laurent
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
- Manufacturing Department, TEC-PHARMA SA, CH-1038 Bercher, Switzerland
| | - Marina Rey
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Corinne Scaletta
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Philippe Abdel-Sayed
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- DLL Bioengineering, Discovery Learning Program, STI School of Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Murielle Michetti
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Marjorie Flahaut
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Wassim Raffoul
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- Plastic, Reconstructive, and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
| | - Anthony de Buys Roessingh
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
| | - Nathalie Hirt-Burri
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- Plastic, Reconstructive, and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, CH-8057 Zurich, Switzerland
- Oxford OSCAR Suzhou Center, Oxford University, Suzhou 215123, China
- Correspondence: ; Tel.: +41-21-314-35-10
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5
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Li Q, Wang D, Jiang Z, Li R, Xue T, Lin C, Deng Y, Jin Y, Sun B. Advances of hydrogel combined with stem cells in promoting chronic wound healing. Front Chem 2022; 10:1038839. [PMID: 36518979 PMCID: PMC9742286 DOI: 10.3389/fchem.2022.1038839] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/07/2022] [Indexed: 08/15/2023] Open
Abstract
Wounds can be divided into two categories, acute and chronic. Acute wounds heal through the normal wound healing process. However, chronic wounds take longer to heal, leading to inflammation, pain, serious complications, and an economic burden of treatment costs. In addition, diabetes and burns are common causes of chronic wounds that are difficult to treat. The rapid and thorough treatment of chronic wounds, including diabetes wounds and burns, represents a significant unmet medical need. Wound dressings play an essential role in chronic wound treatment. Various biomaterials for wound healing have been developed. Among these, hydrogels are widely used as wound care materials due to their good biocompatibility, moisturizing effect, adhesion, and ductility. Wound healing is a complex process influenced by multiple factors and regulatory mechanisms in which stem cells play an important role. With the deepening of stem cell and regenerative medicine research, chronic wound treatment using stem cells has become an important field in medical research. More importantly, the combination of stem cells and stem cell derivatives with hydrogel is an attractive research topic in hydrogel preparation that offers great potential in chronic wound treatment. This review will illustrate the development and application of advanced stem cell therapy-based hydrogels in chronic wound healing, especially in diabetic wounds and burns.
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Affiliation(s)
- Qirong Li
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Ziping Jiang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, China
| | - Rong Li
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Tianyi Xue
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Chao Lin
- School of Grain Science and Technology, Jilin Business and Technology College, Changchun, China
| | - Yongzhi Deng
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Ye Jin
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Baozhen Sun
- Department of Hepatobiliary and Pancreas Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
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6
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In Vivo Comparison of Synthetic Macroporous Filamentous and Sponge-like Skin Substitute Matrices Reveals Morphometric Features of the Foreign Body Reaction According to 3D Biomaterial Designs. Cells 2022; 11:cells11182834. [PMID: 36139409 PMCID: PMC9496825 DOI: 10.3390/cells11182834] [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: 08/08/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
Synthetic macroporous biomaterials are widely used in the field of skin tissue engineering to mimic membrane functions of the native dermis. Biomaterial designs can be subclassified with respect to their shape in fibrous designs, namely fibers, meshes or fleeces, respectively, and porous designs, such as sponges and foams. However, synthetic matrices often have limitations regarding unfavorable foreign body responses (FBRs). Severe FBRs can result in unfavorable disintegration and rejection of an implant, whereas mild FBRs can lead to an acceptable integration of a biomaterial. In this context, comparative in vivo studies of different three-dimensional (3D) matrix designs are rare. Especially, the differences regarding FBRs between synthetically derived filamentous fleeces and sponge-like constructs are unknown. In the present study, the FBRs on two 3D matrix designs were explored after 25 days of subcutaneous implantation in a porcine model. Cellular reactions were quantified histopathologically to investigate in which way the FBR is influenced by the biomaterial architecture. Our results show that FBR metrics (polymorph-nucleated cells and fibrotic reactions) were significantly affected according to the matrix designs. Our findings contribute to a better understanding of the 3D matrix tissue interactions and can be useful for future developments of synthetically derived skin substitute biomaterials.
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7
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Gao C, Lu C, Jian Z, Zhang T, Chen Z, Zhu Q, Tai Z, Liu Y. 3D bioprinting for fabricating artificial skin tissue. Colloids Surf B Biointerfaces 2021; 208:112041. [PMID: 34425531 DOI: 10.1016/j.colsurfb.2021.112041] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/07/2021] [Accepted: 08/12/2021] [Indexed: 01/17/2023]
Abstract
As an organ in direct contact with the external environment, the skin is the first line of defense against external stimuli, so it is the most vulnerable to damage. In addition, there is an increasing demand for artificial skin in the fields of drug testing, disease research and cosmetic testing. Traditional skin tissue engineering has made encouraging progress after years of development. However, due to the complexity of the skin structures, there is still a big gap between existing artificial skin and natural skin in terms of function. Three-dimensional (3D) bioprinting is an advanced biological manufacturing method. It accurately deposits bioinks into pre-designed three-dimensional shapes to create complex biological tissues. This technology aims to print artificial tissues and organs with biological activities and complete physiological functions, thereby alleviating the problem of tissues and organs in short supply. Here, based on the introduction to skin structure and function, we systematically elaborate and analyze skin manufacturing methods, 3D bioprinting biomaterials and strategies, etc. Finally, the challenges and perspectives in 3D bioprinting skin field are summarized.
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Affiliation(s)
- Chuang Gao
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China
| | - Chunxiang Lu
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China
| | - Zhian Jian
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China
| | - Tingrui Zhang
- School of Medicine, Shanghai University, Shanghai, 200444, China; Shanghai Engineering Research Center for External Chinese Medicine, Shanghai, 200443, China
| | - Zhongjian Chen
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China; Shanghai Engineering Research Center for External Chinese Medicine, Shanghai, 200443, China
| | - Quangang Zhu
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China; Shanghai Engineering Research Center for External Chinese Medicine, Shanghai, 200443, China
| | - Zongguang Tai
- Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, 200443, China; Shanghai Engineering Research Center for External Chinese Medicine, Shanghai, 200443, China
| | - Yuanyuan Liu
- School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China.
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8
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Development of a Multi-Layer Skin Substitute Using Human Hair Keratinic Extract-Based Hybrid 3D Printing. Polymers (Basel) 2021; 13:polym13162584. [PMID: 34451127 PMCID: PMC8401121 DOI: 10.3390/polym13162584] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022] Open
Abstract
Large-sized or deep skin wounds require skin substitutes for proper healing without scar formation. Therefore, multi-layered skin substitutes that mimic the genuine skin anatomy of multiple layers have attracted attention as suitable skin substitutes. In this study, a novel skin substitute was developed by combining the multi-layer skin tissue reconstruction method with the combination of a human-derived keratinic extract-loaded nano- and micro-fiber using electrospinning and a support structure using 3D printing. A polycaprolactone PCL/keratin electrospun scaffold showed better cell adhesion and proliferation than the keratin-free PCL scaffold, and keratinocytes and fibroblasts showed better survival, adhesion, and proliferation in the PCL/keratin electrospun nanofiber scaffold and microfiber scaffold, respectively. In a co-culture of keratinocytes and fibroblasts using a multi-layered scaffold, the two cells formed the epidermis and dermal layer on the PCL/keratin scaffold without territorial invasion. In the animal study, the PCL/keratin scaffold caused a faster regeneration of new skin without scar formation compared to the PCL scaffold. Our study showed that PCL/keratin scaffolds co-cultured with keratinocytes and fibroblasts promoted the regeneration of the epidermal and dermal layers in deep skin defects. Such finding suggests a new possibility for artificial skin production using multiple cells.
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9
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Abstract
Choosing the material with the best regeneration potential and properties closest to that of the extracellular matrix is one of the main challenges in tissue engineering and regenerative medicine. Natural polymers, such as collagen, elastin, and cellulose, are widely used for this purpose in tissue engineering. Cellulose derived from bacteria has excellent mechanical properties, high hydrophilicity, crystallinity, and a high degree of polymerization and, therefore, can be used as scaffold/membrane for tissue engineering. In the current study, we reviewed the latest trends in the application of bacterial cellulose (BC) polymers as a scaffold in different types of tissue, including bone, vascular, skin, and cartilage. Also, we mentioned the biological and mechanical advantages and disadvantages of BC polymers. Given the data presented in this study, BC polymer could be suggested as a favorable natural polymer in the design of tissue scaffolds. Implementing novel composites that combine this polymer with other materials through modern or rapid prototyping methods can open up a great prospect in the future of tissue engineering and regenerative medicine.
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Progenitor Biological Bandages: An Authentic Swiss Tool for Safe Therapeutic Management of Burns, Ulcers, and Donor Site Grafts. Methods Mol Biol 2021; 2286:49-65. [PMID: 32572700 DOI: 10.1007/7651_2020_296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Clinical experience gathered over two decades around therapeutic use of primary human dermal progenitor fibroblasts in burn patient populations has been at the forefront of regenerative medicine in Switzerland. Relative technical simplicity, ease of extensive serial multitiered banking, and high stability are major advantages of such cell types, assorted to ease of safety and traceability demonstration. Stringent optimization of cell source selection and standardization of biobanking protocols enables the safe and efficient harnessing of the considerable allogenic therapeutic potential yielded by primary progenitor cells. Swiss legal and regulatory requirements have led to the procurement of fetal tissues within a devised Fetal Progenitor Cell Transplantation Program in the Lausanne University Hospital. Proprietary nonenzymatic isolation of primary musculoskeletal cell types and subsequent establishment of progeny tiered cell banks under cGMP standards have enabled safe and effective management of acute and chronic cutaneous affections in various patient populations. Direct off-the-freezer seeding of viable dermal progenitor fibroblasts on a CE marked equine collagen scaffold is the current standard for delivery of the therapeutic biological materials to patients suffering from extensive and deep burns. Diversification in the clinical indications and delivery methods for these progenitor cells has produced excellent results for treatment of persistent ulcers, autograft donor site wounds, or chronic cutaneous affections such as eczema. Herein we describe the standard operating procedures for preparation and therapeutic deployment of the progenitor biological bandages within our translational musculoskeletal regenerative medicine program, as they are routinely used as adjuvants in our Burn Center to treat critically ailing patients.
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11
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Lin MJ, Lu MC, Chang HY. Sustained Release of Insulin-Like Growth Factor-1 from Bombyx mori L. Silk Fibroin Delivery for Diabetic Wound Therapy. Int J Mol Sci 2021; 22:ijms22126267. [PMID: 34200896 PMCID: PMC8230471 DOI: 10.3390/ijms22126267] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 01/02/2023] Open
Abstract
The goals of this study are to develop a high purity patented silk fibroin (SF) film and test its suitability to be used as a slow-release delivery for insulin-like growth factor-1 (IGF-1). The release rate of the SF film delivering IGF-1 followed zero-order kinetics as determined via the Ritger and Peppas equation. The release rate constant was identified as 0.11, 0.23, and 0.09% h-1 at 37 °C for SF films loaded with 0.65, 6.5, and 65 pmol IGF-1, respectively. More importantly, the IGF-1 activity was preserved for more than 30 days when complexed with the SF film. We show that the IGF-1-loaded SF films significantly accelerated wound healing in vitro (BALB/3T3) and in vivo (diabetic mice), compared with wounds treated with free IGF-1 and an IGF-1-loaded hydrocolloid dressing. This was evidenced by a six-fold increase in the granulation tissue area in the IGF-1-loaded SF film treatment group compared to that of the PBS control group. Western blotting analysis also demonstrated that IGF-1 receptor (IGF1R) phosphorylation in diabetic wounds increased more significantly in the IGF-1-loaded SF films group than in other experimental groups. Our results suggest that IGF-1 sustained release from SF films promotes wound healing through continuously activating the IGF1R pathway, leading to the enhancement of both wound re-epithelialization and granulation tissue formation in diabetic mice. Collectively, these data indicate that SF films have considerable potential to be used as a wound dressing material for long-term IGF-1 delivery for diabetic wound therapy.
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Affiliation(s)
- Meng-Jin Lin
- Miaoli District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, Miaoli 363201, Taiwan; (M.-J.L.); (M.-C.L.)
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Mei-Chun Lu
- Miaoli District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, Miaoli 363201, Taiwan; (M.-J.L.); (M.-C.L.)
| | - Hwan-You Chang
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu 300044, Taiwan
- Correspondence: ; Tel.: +886-3-574-2909
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12
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Souza TFG, Pierdoná TM, Macedo FS, Aquino PEA, Rangel GFP, Duarte RS, Silva LMA, Viana GSB, Alves APNN, Montenegro RC, Wilke DV, Silveira ER, Alencar NMN. A proline derivative-enriched methanol fraction from Sideroxylon obtusifolium leaves (MFSOL) stimulates human keratinocyte cells and exerts a healing effect in a burn wound model. ACTA ACUST UNITED AC 2021; 54:e10700. [PMID: 34076141 PMCID: PMC8186379 DOI: 10.1590/1414-431x2021e10700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/07/2021] [Indexed: 11/21/2022]
Abstract
It was previously demonstrated that the methanol fraction of Sideroxylon obtusifolium (MFSOL) promoted anti-inflammatory and healing activity in excisional wounds. Thus, the present work investigated the healing effects of MFSOL on human keratinocyte cells (HaCaT) and experimental burn model injuries. HaCaT cells were used to study MFSOL's effect on cell migration and proliferation rates. Female Swiss mice were subjected to a second-degree superficial burn protocol and divided into four treatment groups: Vehicle, 1.0% silver sulfadiazine, and 0.5 or 1.0% MFSOL Cream (CrMFSOL). Samples were collected to quantify the inflammatory mediators, and histological analyses were performed after 3, 7, and 14 days. The results showed that MFSOL (50 μg/mL) stimulated HaCaT cells by increasing proliferation and migration rates. Moreover, 0.5% CrMFSOL attenuated myeloperoxidase (MPO) activity and also stimulated the release of interleukin (IL)-1β and IL-10 after 3 days of treatment. CrMFSOL (0.5%) also enhanced wound contraction, promoted improvement of tissue remodeling, and increased collagen production after 7 days and VEGF release after 14 days. Therefore, MFSOL stimulated human keratinocyte (HaCaT) cells and improved wound healing via modulation of inflammatory mediators of burn injuries.
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Affiliation(s)
- T F G Souza
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - T M Pierdoná
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil.,Faculty of Kinesiology and Recreation Management, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - F S Macedo
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - P E A Aquino
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - G F P Rangel
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R S Duarte
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - L M A Silva
- Embrapa Agroindustria Tropical, Fortaleza, CE, Brasil
| | - G S B Viana
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A P N N Alves
- Departamento de Clínica Odontológica, Faculdade de Farmácia, Odontologia e Enfermagem, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - R C Montenegro
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - D V Wilke
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - E R Silveira
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - N M N Alencar
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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13
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Al-Dourobi K, Laurent A, Deghayli L, Flahaut M, Abdel-Sayed P, Scaletta C, Michetti M, Waselle L, Simon JP, El Ezzi O, Raffoul W, Applegate LA, Hirt-Burri N, Roessingh ASDB. Retrospective Evaluation of Progenitor Biological Bandage Use: A Complementary and Safe Therapeutic Management Option for Prevention of Hypertrophic Scarring in Pediatric Burn Care. Pharmaceuticals (Basel) 2021; 14:ph14030201. [PMID: 33671009 PMCID: PMC7997469 DOI: 10.3390/ph14030201] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/11/2022] Open
Abstract
Progenitor Biological Bandages (PBB) have been continuously applied clinically in the Lausanne Burn Center for over two decades. Vast translational experience and hindsight have been gathered, specifically for cutaneous healing promotion of donor-site grafts and second-degree pediatric burns. PBBs constitute combined Advanced Therapy Medicinal Products, containing viable cultured allogeneic fetal dermal progenitor fibroblasts. Such constructs may partly favor repair and regeneration of functional cutaneous tissues by releasing cytokines and growth factors, potentially negating the need for subsequent skin grafting, while reducing the formation of hypertrophic scar tissues. This retrospective case-control study (2010-2018) of pediatric second-degree burn patients comprehensively compared two initial wound treatment options (i.e., PBBs versus Aquacel® Ag, applied during ten to twelve days post-trauma). Results confirmed clinical safety of PBBs with regard to morbidity, mortality, and overall complications. No difference was detected between groups for length of hospitalization or initial relative burn surface decreasing rates. Nevertheless, a trend was observed in younger patients treated with PBBs, requiring fewer corrective interventions or subsequent skin grafting. Importantly, significant improvements were observed in the PBB group regarding hypertrophic scarring (i.e., reduced number of scar complications and related corrective interventions). Such results establish evidence of clinical benefits yielded by the Swiss fetal progenitor cell transplantation program and favor further implementation of specific cell therapies in highly specialized regenerative medicine.
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Affiliation(s)
- Karim Al-Dourobi
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Alexis Laurent
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Lina Deghayli
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Marjorie Flahaut
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Philippe Abdel-Sayed
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Corinne Scaletta
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Murielle Michetti
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Laurent Waselle
- Cell Production Center, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland;
| | - Jeanne-Pascale Simon
- Unit of Legal Affairs, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Oumama El Ezzi
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
| | - Wassim Raffoul
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
| | - Lee Ann Applegate
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
- Oxford Suzhou Center for Advanced Research, Science and Technology Co., Ltd., Oxford University, Suzhou 215000, China
- Center for Applied Biotechnology and Molecular Medicine, University of Zurich, CH-8057 Zurich, Switzerland
| | - Nathalie Hirt-Burri
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland; (K.A.-D.); (A.L.); (L.D.); (M.F.); (P.A.-S.); (C.S.); (M.M.); (W.R.); (L.A.A.); (N.H.-B.)
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Anthony S de Buys Roessingh
- Lausanne Burn Center, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland;
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, CH-1011 Lausanne, Switzerland
- Correspondence: ; Tel.: +41-79-556-37-67; Fax: +41-21-314-31-02
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14
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Basson R, Lima C, Muhamadali H, Li W, Hollywood K, Li L, Baguneid M, Al Kredly R, Goodacre R, Bayat A. Assessment of Transdermal Delivery of Topical Compounds in Skin Scarring Using a Novel Combined Approach of Raman Spectroscopy and High-Performance Liquid Chromatography. Adv Wound Care (New Rochelle) 2021; 10:1-12. [PMID: 32496981 DOI: 10.1089/wound.2020.1154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective: The goal of any topical formulation is efficient transdermal delivery of its active components. However, delivery of compounds can be problematic with penetration through tough layers of fibrotic dermal scar tissue. Approach: We propose a new approach combining high-performance liquid chromatography (HPLC) and Raman spectroscopy (RS) using a topical of unknown composition against a well-known antiscar topical (as control). Results: Positive detection of compounds within the treatment topical using both techniques was validated with mass spectrometry. RS detected conformational structural changes; the 1,655/1,446 cm-1 ratio estimating collagen content significantly decreased (p < 0.05) over weeks 4, 12, and 16 compared with day 0. The amide I band, known to represent collagen and protein in skin, shifted from 1,667 to 1,656 cm-1, which may represent a change from β-sheets in elastin to α-helices in collagen. Confirmatory elastin immunohistochemistry decreased compared with day 0, conversely the collagen I/III ratio increased in the same samples by week 12 (p < 0.05, and p < 0.0001, respectively), in keeping with normal scar formation. Optical coherence tomography attenuation coefficient representing collagen deposition was significantly decreased at week 4 compared with day 0 and increased at week 16 (p < 0.05). Innovation: This study provides a platform for further research on the simultaneous evaluation of the effects of compounds in cutaneous scarring by RS and HPLC, and identifies a role for RS in the therapeutic evaluation and theranostic management of skin scarring. Conclusions: RS can provide noninvasive information on the effects of topicals on scar pathogenesis and structural composition, validated by other analytical techniques.
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Affiliation(s)
- Rubinder Basson
- Plastic and Reconstructive Surgery Research, Center for Dermatology Research, NIHR, Manchester Biomedical Research Center, University of Manchester, Manchester, United Kingdom
| | - Cassio Lima
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Howbeer Muhamadali
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Weiping Li
- Plastic and Reconstructive Surgery Research, Center for Dermatology Research, NIHR, Manchester Biomedical Research Center, University of Manchester, Manchester, United Kingdom
| | - Katherine Hollywood
- Synbiochem, Manchester Institute of Biotechnology, Manchester, United Kingdom
| | - Ludanni Li
- Plastic and Reconstructive Surgery Research, Center for Dermatology Research, NIHR, Manchester Biomedical Research Center, University of Manchester, Manchester, United Kingdom
| | | | - Rawya Al Kredly
- Julphar Gulf Pharmaceutical Industries, Ras al Khaimah, United Arab Emirates
| | - Royston Goodacre
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Ardeshir Bayat
- Plastic and Reconstructive Surgery Research, Center for Dermatology Research, NIHR, Manchester Biomedical Research Center, University of Manchester, Manchester, United Kingdom
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15
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Laurent A, Hirt-Burri N, Scaletta C, Michetti M, de Buys Roessingh AS, Raffoul W, Applegate LA. Holistic Approach of Swiss Fetal Progenitor Cell Banking: Optimizing Safe and Sustainable Substrates for Regenerative Medicine and Biotechnology. Front Bioeng Biotechnol 2020; 8:557758. [PMID: 33195124 PMCID: PMC7644790 DOI: 10.3389/fbioe.2020.557758] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 08/21/2020] [Indexed: 12/17/2022] Open
Abstract
Safety, quality, and regulatory-driven iterative optimization of therapeutic cell source selection has constituted the core developmental bedrock for primary fetal progenitor cell (FPC) therapy in Switzerland throughout three decades. Customized Fetal Transplantation Programs were pragmatically devised as straightforward workflows for tissue procurement, traceability maximization, safety, consistency, and robustness of cultured progeny cellular materials. Whole-cell bioprocessing standardization has provided plethoric insights into the adequate conjugation of modern biotechnological advances with current restraining legislative, ethical, and regulatory frameworks. Pioneer translational advances in cutaneous and musculoskeletal regenerative medicine continuously demonstrate the therapeutic potential of FPCs. Extensive technical and clinical hindsight was gathered by managing pediatric burns and geriatric ulcers in Switzerland. Concomitant industrial transposition of dermal FPC banking, following good manufacturing practices, demonstrated the extensive potential of their therapeutic value. Furthermore, in extenso, exponential revalorization of Swiss FPC technology may be achieved via the renewal of integrative model frameworks. Consideration of both longitudinal and transversal aspects of simultaneous fetal tissue differential processing allows for a better understanding of the quasi-infinite expansion potential within multi-tiered primary FPC banking. Multiple fetal tissues (e.g., skin, cartilage, tendon, muscle, bone, lung) may be simultaneously harvested and processed for adherent cell cultures, establishing a unique model for sustainable therapeutic cellular material supply chains. Here, we integrated fundamental, preclinical, clinical, and industrial developments embodying the scientific advances supported by Swiss FPC banking and we focused on advances made to date for FPCs that may be derived from a single organ donation. A renewed model of single organ donation bioprocessing is proposed, achieving sustained standards and potential production of billions of affordable and efficient therapeutic doses. Thereby, the aim is to validate the core therapeutic value proposition, to increase awareness and use of standardized protocols for translational regenerative medicine, potentially impacting millions of patients suffering from cutaneous and musculoskeletal diseases. Alternative applications of FPC banking include biopharmaceutical therapeutic product manufacturing, thereby indirectly and synergistically enhancing the power of modern therapeutic armamentariums. It is hypothesized that a single qualifying fetal organ donation is sufficient to sustain decades of scientific, medical, and industrial developments, as technological optimization and standardization enable high efficiency.
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Affiliation(s)
- Alexis Laurent
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
- Tec-Pharma SA, Bercher, Switzerland
- LAM Biotechnologies SA, Épalinges, Switzerland
| | - Nathalie Hirt-Burri
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Corinne Scaletta
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Murielle Michetti
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
| | - Anthony S. de Buys Roessingh
- Children and Adolescent Surgery Service, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Wassim Raffoul
- Plastic, Reconstructive and Hand Surgery Service, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Lausanne University Hospital, University of Lausanne, Épalinges, Switzerland
- Oxford Suzhou Center for Advanced Research, Science and Technology Co., Ltd., Oxford University, Suzhou, China
- Competence Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Zurich, Switzerland
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16
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Zhang XR, Huang YZ, Gao HW, Jiang YL, Hu JG, Pi JK, Chen AJ, Zhang Y, Zhou L, Xie HQ. Hypoxic preconditioning of human urine-derived stem cell-laden small intestinal submucosa enhances wound healing potential. Stem Cell Res Ther 2020; 11:150. [PMID: 32252800 PMCID: PMC7137341 DOI: 10.1186/s13287-020-01662-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/27/2020] [Accepted: 03/23/2020] [Indexed: 02/08/2023] Open
Abstract
Background Urine-derived stem cells (USCs) are a valuable stem cell source for tissue engineering because they can be harvested non-invasively. Small intestine submucosa (SIS) has been used as scaffolds for soft tissue repair in the clinic. However, the feasibility and efficacy of a combination of USCs and SIS for skin wound healing has not been reported. In this study, we created a tissue-engineered skin graft, termed the SIS+USC composite, and hypothesized that hypoxic preconditioning would improve its wound healing potential. Methods USCs were seeded on SIS membranes to fabricate the SIS+USC composites, which were then cultured in normoxia (21% O2) or preconditioned in hypoxia (1% O2) for 24 h, respectively. The viability and morphology of USCs, the expression of genes related to wound angiogenesis and reepithelialization, and the secretion of growth factors were determined in vitro. The wound healing ability of the SIS+USC composites was evaluated in a mouse full-thickness skin wound model. Results USCs showed good cell viability and morphology in both normoxia and hypoxic preconditioning groups. In vitro, hypoxic preconditioning enhanced not only the expression of genes related to wound angiogenesis (VEGF and Ang-2) and reepithelialization (bFGF and EGF) but also the secretion of growth factors (VEGF, EGF, and bFGF). In vivo, hypoxic preconditioning significantly improved the wound healing potential of the SIS+USC composites. It enhanced wound angiogenesis at the early stage of wound healing, promoted reepithelialization, and improved the deposition and remodeling of collagen fibers at the late stage of wound healing. Conclusions Taken together, this study shows that hypoxic preconditioning provides an easy and efficient strategy to enhance the wound healing potential of the SIS+USC composite.
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Affiliation(s)
- Xiu-Ru Zhang
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China.,Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, 610041, China.,Surgery of Spine and Spinal Cord, Henan Provincial People's Hospital, Zhengzhou, 450000, China
| | - Yi-Zhou Huang
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China.,Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hong-Wei Gao
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - Yan-Lin Jiang
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - Jun-Gen Hu
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - Jin-Kui Pi
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - An-Jing Chen
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - Yi Zhang
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - Li Zhou
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China
| | - Hui-Qi Xie
- Laboratory of Stem Cell and Tissue Engineering, Orthopaedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, No.1 Ke-Yuan-Si-Lu, Gao-Peng-Da-Dao, Chengdu, 610041, Sichuan, China.
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17
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Navarro J, Clohessy RM, Holder RC, Gabard AR, Herendeen GJ, Christy RJ, Burnett LR, Fisher JP. In Vivo Evaluation of Three-Dimensional Printed, Keratin-Based Hydrogels in a Porcine Thermal Burn Model. Tissue Eng Part A 2020; 26:265-278. [PMID: 31774034 DOI: 10.1089/ten.tea.2019.0181] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Keratin is a natural material that can be derived from the cortex of human hair. Our group had previously presented a method for the printed, sequential production of three-dimensional (3D) keratin scaffolds. Using a riboflavin-sodium persulfate-hydroquinone (initiator-catalyst-inhibitor) photosensitive solution, we produced 3D keratin-based constructs through ultraviolet crosslinking in a lithography-based 3D printer. In this study, we have used this bioink to produce a keratin-based construct that is capable of delivering small molecules, providing an environment conducive to healing of dermal burn wounds in vivo, and maintaining stability in customized packaging. We characterized the effects of manufacturing steps, such as lyophilization and gamma irradiation sterilization on the properties of 3D printed keratin scaffolds prepared for in vivo testing. Keratin hydrogels are viable for the uptake and release of contracture-inhibiting Halofuginone, a collagen synthesis inhibitor that has been shown to decrease collagen synthesis in fibrosis cases. This small-molecule delivery provides a mechanism to reduce scarring of severe burn wounds in vitro. In vivo data show that the Halofuginone-laden printed keratin is noninferior to other similar approaches reported in literature. This is indicative that the use of 3D printed keratin is not inhibiting the healing processes, and the inclusion of Halofuginone induces a more organized dermal healing after a burn; in other words, this treatment is slower but improves healing. These studies are indicative of the potential of Halofuginone-laden keratin dressings in dermal wound healing. We aim to keep increasing the complexity of the 3D printed constructs toward the production of complex scaffolds for the treatment and topographical reconstruction of severe burn wounds to the face.
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Affiliation(s)
- Javier Navarro
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissue, University of Maryland, College Park, Maryland
| | | | | | | | | | - Robert J Christy
- U.S. Army Institute of Surgical Research, Combat Trauma and Burn Injury Research, San Antonio, Texas
| | | | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissue, University of Maryland, College Park, Maryland
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18
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Navarro J, Swayambunathan J, Janes ME, Santoro M, Mikos AG, Fisher JP. Dual-chambered membrane bioreactor for coculture of stratified cell populations. Biotechnol Bioeng 2019; 116:3253-3268. [PMID: 31502660 DOI: 10.1002/bit.27164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 12/13/2022]
Abstract
We have developed a dual-chambered bioreactor (DCB) that incorporates a membrane to study stratified 3D cell populations for skin tissue engineering. The DCB provides adjacent flow lines within a common chamber; the inclusion of the membrane regulates flow layering or mixing, which can be exploited to produce layers or gradients of cell populations in the scaffolds. Computational modeling and experimental assays were used to study the transport phenomena within the bioreactor. Molecular transport across the membrane was defined by a balance of convection and diffusion; the symmetry of the system was proven by its bulk convection stability, while the movement of molecules from one flow line to the other is governed by coupled convection-diffusion. This balance allowed the perfusion of two different fluids, with the membrane defining the mixing degree between the two. The bioreactor sustained two adjacent cell populations for 28 days, and was used to induce indirect adipogenic differentiation of mesenchymal stem cells due to molecular cross-talk between the populations. We successfully developed a platform that can study the dermis-hypodermis complex to address limitations in skin tissue engineering. Furthermore, the DCB can be used for other multilayered tissues or the study of communication pathways between cell populations.
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Affiliation(s)
- Javier Navarro
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
| | - Jay Swayambunathan
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
| | - Morgan Elizabeth Janes
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
| | - Marco Santoro
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
| | - Antonios G Mikos
- Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland.,Department of Bioengineering, Rice University, Houston, Texas
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland.,Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
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19
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Young SA, Riahinezhad H, Amsden BG. In situ-forming, mechanically resilient hydrogels for cell delivery. J Mater Chem B 2019; 7:5742-5761. [PMID: 31531443 DOI: 10.1039/c9tb01398a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Injectable, in situ-forming hydrogels can improve cell delivery in tissue engineering applications by facilitating minimally invasive delivery to irregular defect sites and improving cell retention and survival. Tissues targeted for cell delivery often undergo diverse mechanical loading including high stress, high strain, and repetitive loading conditions. This review focuses on the development of hydrogel systems that meet the requirements of mechanical resiliency, cytocompatibility, and injectability for such applications. First, we describe the most important design considerations for maintaining the viability and function of encapsulated cells, for reproducing the target tissue morphology, and for achieving degradation profiles that facilitate tissue replacement. Models describing the relationships between hydrogel structure and mechanical properties are described, focusing on design principles necessary for producing mechanically resilient hydrogels. The advantages and limitations of current strategies for preparing cytocompatible, injectable, and mechanically resilient hydrogels are reviewed, including double networks, nanocomposites, and high molecular weight amphiphilic copolymer networks. Finally, challenges and opportunities are outlined to guide future research in this developing field.
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Affiliation(s)
- Stuart A Young
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada.
| | - Hossein Riahinezhad
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada.
| | - Brian G Amsden
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada.
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20
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Zhu C, Liu J, He B, Qu X, Peng D. The role of human immortal skin keratinocytes‐acellular dermal matrix scaffold in skin repair and regeneration. J Cell Biochem 2019; 120:12182-12191. [PMID: 30937961 DOI: 10.1002/jcb.28588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 01/17/2019] [Accepted: 01/24/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Chongtao Zhu
- Laser Medical Center, The First People's Hospital of Yunnan Province The Affiliated Hospital of Kunming University of Science and Technology Kunming Yunnan China
| | - Jiankun Liu
- Department of Gastroenterology 920th Hospital of PLA Joint Logistics Support Force Kunming Yunnan China
| | - Bin He
- Department of Burn Leshan Jiading Hospital Leshan Sichuan China
| | - Xiaowen Qu
- Laser Medical Center, The First People's Hospital of Yunnan Province The Affiliated Hospital of Kunming University of Science and Technology Kunming Yunnan China
| | - Daizhi Peng
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burn Research, Southwest Hospital Third Military Medical University Chongqing China
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21
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Yu JR, Navarro J, Coburn JC, Mahadik B, Molnar J, Holmes JH, Nam AJ, Fisher JP. Current and Future Perspectives on Skin Tissue Engineering: Key Features of Biomedical Research, Translational Assessment, and Clinical Application. Adv Healthc Mater 2019; 8:e1801471. [PMID: 30707508 PMCID: PMC10290827 DOI: 10.1002/adhm.201801471] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/04/2019] [Indexed: 12/20/2022]
Abstract
The skin is responsible for several important physiological functions and has enormous clinical significance in wound healing. Tissue engineered substitutes may be used in patients suffering from skin injuries to support regeneration of the epidermis, dermis, or both. Skin substitutes are also gaining traction in the cosmetics and pharmaceutical industries as alternatives to animal models for product testing. Recent biomedical advances, ranging from cellular-level therapies such as mesenchymal stem cell or growth factor delivery, to large-scale biofabrication techniques including 3D printing, have enabled the implementation of unique strategies and novel biomaterials to recapitulate the biological, architectural, and functional complexity of native skin. This progress report highlights some of the latest approaches to skin regeneration and biofabrication using tissue engineering techniques. Current challenges in fabricating multilayered skin are addressed, and perspectives on efforts and strategies to meet those limitations are provided. Commercially available skin substitute technologies are also examined, and strategies to recapitulate native physiology, the role of regulatory agencies in supporting translation, as well as current clinical needs, are reviewed. By considering each of these perspectives while moving from bench to bedside, tissue engineering may be leveraged to create improved skin substitutes for both in vitro testing and clinical applications.
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Affiliation(s)
- Justine R Yu
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
- University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Javier Navarro
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
| | - James C Coburn
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- Division of Biomedical Physics, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD, 20903, USA
| | - Bhushan Mahadik
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
| | - Joseph Molnar
- Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - James H Holmes
- Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - Arthur J Nam
- Division of Plastic, Reconstructive and Maxillofacial Surgery, R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, Baltimore, MD, 21201, USA
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
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22
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Navarro J, Swayambunathan J, Lerman M, Santoro M, Fisher JP. Development of keratin-based membranes for potential use in skin repair. Acta Biomater 2019; 83:177-188. [PMID: 30342286 DOI: 10.1016/j.actbio.2018.10.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 10/11/2018] [Accepted: 10/16/2018] [Indexed: 12/22/2022]
Abstract
The layers in skin determine its protective and hemostasis functions. This layered microstructure cannot be naturally regenerated after severe burns; we aim to reconstruct it using guided tissue regeneration (GTR). In GTR, a membrane is used to regulate tissue growth by stopping fast-proliferating cells and allowing slower cells to migrate and reconstruct specialized microstructures. Here, we proposed the use of keratin membranes crosslinked via dityrosine bonding. Variables from the crosslinking process were grouped within an energy density (ED) parameter to manufacture and evaluate the membranes. Sol fraction, spectrographs, and thermograms were used to quantify the non-linear relation between ED and the resulting crosslinking degree (CD). Mechanical and swelling properties increased until an ED threshold was reached; at higher ED, the CD and properties of the membranes remained invariable indicating that all possible dityrosine bonds were formed. Transport assays showed that the membranes allow molecular diffusion; low ED membranes retain solutes within their structure while the high ED samples allow higher transport rates indicating that uncrosslinked proteins can be responsible of reducing transport. This was confirmed with lower transport of adipogenic growth factors to stem cells when using low ED membranes; high ED samples resulted in increased production of intracellular lipids. Overall, we can engineer keratin membranes with specific CD, a valuable tool to tune microstructural and transport properties.
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Affiliation(s)
- Javier Navarro
- Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Jay Swayambunathan
- Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Max Lerman
- Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Marco Santoro
- Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States.
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States.
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23
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In Vitro Models for Studying Transport Across Epithelial Tissue Barriers. Ann Biomed Eng 2018; 47:1-21. [DOI: 10.1007/s10439-018-02124-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/28/2018] [Indexed: 12/16/2022]
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24
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Therapeutic Applications for Adipose-Derived Stem Cells in Wound Healing and Tissue Engineering. CURRENT STEM CELL REPORTS 2018. [DOI: 10.1007/s40778-018-0125-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Santoro M, Navarro J, Fisher JP. Micro- and Macrobioprinting: Current Trends in Tissue Modeling and Organ Fabrication. SMALL METHODS 2018; 2:1700318. [PMID: 30397639 PMCID: PMC6214196 DOI: 10.1002/smtd.201700318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The recapitulation of human anatomy and physiology is critical for organ regeneration. Due to this fundamental requirement, bioprinting holds great promise in tissue engineering and regenerative medicine due to the possibility of fabricating complex scaffolds that host cells and biochemical cues in a physiologically relevant fashion. The ever-growing research in this field has been proceeding along two different, yet complementary, routes: on the one hand, the development of bioprinting to fabricate large tissue surrogates for transplantation purposes in vivo (macrobioprinting), and on the other the spread of bioprinting-based miniaturized systems to model the tissue microenvironment in vitro (microbioprinting). The latest advances in both macro- and microbioprinting are reviewed, emphasizing their impact on specific areas of tissue engineering. Additionally, a critical comparison of macro- versus microbioprinting is presented together with advantages and limitations of each approach. Ultimately, findings obtained both at the macro-and microscale are expected to provide a deeper insight in tissue biology and offer clinically relevant solutions for organ regeneration.
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Affiliation(s)
- Marco Santoro
- Fischell Department of Bioengineering University of Maryland, 3238 Jeong H. Kim Engineering Building, College Park, MD 20742, USA
- Center for Engineering Complex Tissues, University of Maryland, 3238 Jeong H. Kim Engineering Building, College Park, MD 20742, USA
| | - Javier Navarro
- Fischell Department of Bioengineering University of Maryland, 3238 Jeong H. Kim Engineering Building, College Park, MD 20742, USA
- Center for Engineering Complex Tissues, University of Maryland, 3238 Jeong H. Kim Engineering Building, College Park, MD 20742, USA
| | - John P Fisher
- Fischell Department of Bioengineering University of Maryland, 3238 Jeong H. Kim Engineering Building, College Park, MD 20742, USA
- Center for Engineering Complex Tissues, University of Maryland, 3238 Jeong H. Kim Engineering Building, College Park, MD 20742, USA
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26
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Kshersagar J, Kshirsagar R, Desai S, Bohara R, Joshi M. Decellularized amnion scaffold with activated PRP: a new paradigm dressing material for burn wound healing. Cell Tissue Bank 2018; 19:423-436. [PMID: 29508105 DOI: 10.1007/s10561-018-9688-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 02/20/2018] [Indexed: 12/29/2022]
Abstract
Direct application of amnion has greater risk of immunological rejection and infection. Decellularization is an effective method to lower the risk of immune complications and infections. The bioreactor assembly with multiple cassettes was designed for decellurization of multiple amnions with different cell types simultaneously in single run. A detergent-based protocol was modified to remove all cellular components from amnion and diminish the DNA content to render it non-immunogenic. Amnion (n = 10) were treated with 2% sodium dodecyl sulphate (SDS), 5% dimethyl sulfoxide (DMSO) and 2% sodium deoxycholeate (SD). Decellularized amnion samples were analyzed by haematoxylin-eosin staining (HE), Alcian blue pH 1 (AB-pH-1), 4,6-diamnionidino-2-phenylindol (DAPI), Massion's trichrome stain, DNA quantification, mechanical testing and scanning electron microscopy (SEM). Histological analysis showed complete removal of cellular components and the histoarchitecture of scaffold remained intact. Amnion scaffold activated with platelet rich plasma (PRP) and calcium chloride composition supported better adherence to the wound than amnion alone. Only single application showed good healing. In vivo assessment of activated amnion revealed stable dressing. It has good promising outcome. At day 7, histologically the wounds treated with activated amnion were almost closed without scarring and showed well differentiated epidermis, proliferation of keratinocytes, hair follicles and basement membrane as compared to controls and silver nitrate gel dressings in a mouse (Mus musculus). Cryopreservation had no adverse effect on the mechanical properties of the amnion scaffold. Cryopreservation of decellularized amnion by Dulbecco's modified eagle medium (DMEM) was expected to prepare off-the-shelf skin substitutes and preserve them to be immediately available upon request of patients' needs.
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Affiliation(s)
- Jeevitaa Kshersagar
- Department of Stem Cells and Regenerative Medicine, D.Y.Patil University, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, MS, 416006, India
| | - Ravi Kshirsagar
- Department of Stem Cells and Regenerative Medicine, D.Y.Patil University, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, MS, 416006, India
| | - Shashikant Desai
- Stem Plus Biotech, Block #11, Shiv Meridian, M G Road, Sangli, MS, 416416, India
| | - Raghvendra Bohara
- Department of Stem Cells and Regenerative Medicine, D.Y.Patil University, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, MS, 416006, India
| | - Meghnad Joshi
- Department of Stem Cells and Regenerative Medicine, D.Y.Patil University, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, MS, 416006, India.
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27
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Türkkan S, Atila D, Akdağ A, Tezcaner A. Fabrication of functionalized citrus pectin/silk fibroin scaffolds for skin tissue engineering. J Biomed Mater Res B Appl Biomater 2018; 106:2625-2635. [DOI: 10.1002/jbm.b.34079] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/24/2017] [Accepted: 01/08/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Sibel Türkkan
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
| | - Deniz Atila
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
| | - Akın Akdağ
- Department of Chemistry; Middle East Technical University; Ankara Turkey
| | - Ayşen Tezcaner
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
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28
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Watt SM, Pleat JM. Stem cells, niches and scaffolds: Applications to burns and wound care. Adv Drug Deliv Rev 2018; 123:82-106. [PMID: 29106911 DOI: 10.1016/j.addr.2017.10.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 10/19/2017] [Accepted: 10/22/2017] [Indexed: 12/11/2022]
Abstract
The importance of skin to survival, and the devastating physical and psychological consequences of scarring following reparative healing of extensive or difficult to heal human wounds, cannot be disputed. We discuss the significant challenges faced by patients and healthcare providers alike in treating these wounds. New state of the art technologies have provided remarkable insights into the role of skin stem and progenitor cells and their niches in maintaining skin homeostasis and in reparative wound healing. Based on this knowledge, we examine different approaches to repair extensive burn injury and chronic wounds, including full and split thickness skin grafts, temporising matrices and scaffolds, and composite cultured skin products. Notable developments include next generation skin substitutes to replace split thickness skin autografts and next generation gene editing coupled with cell therapies to treat genodermatoses. Further refinements are predicted with the advent of bioprinting technologies, and newly defined biomaterials and autologous cell sources that can be engineered to more accurately replicate human skin architecture, function and cosmesis. These advances will undoubtedly improve quality of life for patients with extensive burns and difficult to heal wounds.
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Affiliation(s)
- Suzanne M Watt
- Stem Cell Research, Nuffield Division of Clinical Laboratory Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9BQ, UK.
| | - Jonathan M Pleat
- Department of Plastic and Reconstructive Surgery, North Bristol NHS Trust and University of Bristol, Westbury on Trym, Bristol BS9 3TZ, UK.
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29
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Vranckx JJ, Hondt MD. Tissue engineering and surgery: from translational studies to human trials. Innov Surg Sci 2017; 2:189-202. [PMID: 31579752 PMCID: PMC6754028 DOI: 10.1515/iss-2017-0011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/16/2017] [Indexed: 12/23/2022] Open
Abstract
Tissue engineering was introduced as an innovative and promising field in the mid-1980s. The capacity of cells to migrate and proliferate in growth-inducing medium induced great expectancies on generating custom-shaped bioconstructs for tissue regeneration. Tissue engineering represents a unique multidisciplinary translational forum where the principles of biomaterial engineering, the molecular biology of cells and genes, and the clinical sciences of reconstruction would interact intensively through the combined efforts of scientists, engineers, and clinicians. The anticipated possibilities of cell engineering, matrix development, and growth factor therapies are extensive and would largely expand our clinical reconstructive armamentarium. Application of proangiogenic proteins may stimulate wound repair, restore avascular wound beds, or reverse hypoxia in flaps. Autologous cells procured from biopsies may generate an ‘autologous’ dermal and epidermal laminated cover on extensive burn wounds. Three-dimensional printing may generate ‘custom-made’ preshaped scaffolds – shaped as a nose, an ear, or a mandible – in which these cells can be seeded. The paucity of optimal donor tissues may be solved with off-the-shelf tissues using tissue engineering strategies. However, despite the expectations, the speed of translation of in vitro tissue engineering sciences into clinical reality is very slow due to the intrinsic complexity of human tissues. This review focuses on the transition from translational protocols towards current clinical applications of tissue engineering strategies in surgery.
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Affiliation(s)
- Jan Jeroen Vranckx
- Department of Plastic and Reconstructive Surgery, KU Leuven University Hospitals, 49 Herestraat, B-3000 Leuven, Belgium
| | - Margot Den Hondt
- Laboratory of Plastic Surgery and Tissue Engineering Research, Department of Plastic and Reconstructive Surgery, KU-Leuven University Hospitals, Leuven, Belgium
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30
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Tan J, Wu J. Current progress in understanding the molecular pathogenesis of burn scar contracture. BURNS & TRAUMA 2017; 5:14. [PMID: 28546987 PMCID: PMC5441009 DOI: 10.1186/s41038-017-0080-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 04/17/2017] [Indexed: 01/17/2023]
Abstract
Abnormal wound healing is likely to induce scar formation, leading to dysfunction, deformity, and psychological trauma in burn patients. Despite the advancement of medical care treatment, scar contracture in burn patients remains a challenge. Myofibroblasts play a key role in scar contracture. It has been demonstrated that myofibroblasts, as well as inflammatory cells, fibroblasts, endothelial cells, and epithelial cells, secrete transforming growth factor-β1 (TGF-β1) and other cytokines, which can promote persistent myofibroblast activation via a positive regulation loop. In addition to the cellular contribution, the microenvironments, including the mechanical tension and integrin family, are also involved in scar contracture. Most recently, eukaryotic initiation factor 6 (eIF6), an upstream regulator of TGF-β1, has been demonstrated to be involved in myofibroblast differentiation and contraction in both in vitro fibroblast-populated collagen lattice (FPCL) and in vivo external mechanical stretch models. Moreover, the data showed that P311 could induce the transdifferentiation of epidermal stem cells to myofibroblasts by upregulating TGF-β1 expression, which mediated myofibroblast contraction. In this review, we briefly described the most current progress on the biological function of myofibroblasts in scar contracture and subsequently summarized the molecular events that initiated contracture. This would help us better understand the molecular basis of scar contracture as well as to find a comprehensive strategy for preventing/managing scar contracture.
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Affiliation(s)
- Jianglin Tan
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injuries, Chongqing Key Laboratory for Disease Proteomics, Southwest Hospital, Third Military Medical University, Chongqing, 400038 China
| | - Jun Wu
- Department of Burns, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080 China
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31
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Bakhtyar N, Jeschke MG, Mainville L, Herer E, Amini-Nik S. Acellular Gelatinous Material of Human Umbilical Cord Enhances Wound Healing: A Candidate Remedy for Deficient Wound Healing. Front Physiol 2017; 8:200. [PMID: 28421003 PMCID: PMC5379110 DOI: 10.3389/fphys.2017.00200] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 03/17/2017] [Indexed: 12/17/2022] Open
Abstract
Impaired wound healing is a severe clinical challenge and research into finding effective wound healing strategies is underway as there is no ideal treatment. Gelatinous material from the umbilical cord called Wharton's jelly is a valuable source of mesenchymal stem cells which have been shown to aid wound healing. While the cellular component of Wharton's jelly has been the subject of extensive research during the last few years, little is known about the de-cellularized jelly material of the umbilical cord. This is important as they are native niche of stem cells. We have isolated Wharton's jelly from umbilical cords and then fractionated acellular gelatinous Wharton's jelly (AGWJ). Here, we show for the first time that AGWJ enhances wound healing in vitro as well as in vivo for wounds in a murine model. In vivo staining of the wounds revealed a smaller wound length in the AGWJ treated wounds in comparison to control treatment by enhancing cell migration and differentiation. AGWJ significantly enhanced fibroblast cell migration in vitro. Aside from cell migration, AGWJ changed the cell morphology of fibroblasts to a more elongated phenotype, characteristic of myofibroblasts, confirmed by upregulation of alpha smooth muscle actin using immunoblotting. AGWJ treatment of wounds led to accelerated differentiation of cells into myofibroblasts, shortening the proliferation phase of wound healing. This data provides support for a novel wound healing remedy using AGWJ. AGWJ being native biological, cost effective and abundantly available globally, makes it a highly promising treatment option for wound dressing and skin regeneration.
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Affiliation(s)
- Nazihah Bakhtyar
- Department of Biological Sciences, Sunnybrook Health Sciences Center, Sunnybrook Research InstituteToronto, ON, Canada
| | - Marc G Jeschke
- Department of Biological Sciences, Sunnybrook Health Sciences Center, Sunnybrook Research InstituteToronto, ON, Canada.,Division of Plastic Surgery, Department of Surgery, University of TorontoToronto, ON, Canada
| | - Laurence Mainville
- Department of Biological Sciences, Sunnybrook Health Sciences Center, Sunnybrook Research InstituteToronto, ON, Canada
| | - Elaine Herer
- Department of Gynecology and Obstetrics, Sunnybrook Health Sciences Centre, University of TorontoToronto, ON, Canada
| | - Saeid Amini-Nik
- Department of Biological Sciences, Sunnybrook Health Sciences Center, Sunnybrook Research InstituteToronto, ON, Canada.,Division of Plastic Surgery, Department of Surgery, University of TorontoToronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of TorontoToronto, ON, Canada
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32
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Naderi N, Combellack EJ, Griffin M, Sedaghati T, Javed M, Findlay MW, Wallace CG, Mosahebi A, Butler PEM, Seifalian AM, Whitaker IS. The regenerative role of adipose-derived stem cells (ADSC) in plastic and reconstructive surgery. Int Wound J 2017; 14:112-124. [PMID: 26833722 PMCID: PMC7949873 DOI: 10.1111/iwj.12569] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 11/24/2015] [Accepted: 12/01/2015] [Indexed: 12/12/2022] Open
Abstract
The potential use of stem cell-based therapies for the repair and regeneration of various tissues and organs offers a paradigm shift in plastic and reconstructive surgery. The use of either embryonic stem cells (ESC) or induced pluripotent stem cells (iPSC) in clinical situations is limited because of regulations and ethical considerations even though these cells are theoretically highly beneficial. Adult mesenchymal stem cells appear to be an ideal stem cell population for practical regenerative medicine. Among these cells, adipose-derived stem cells (ADSC) have the potential to differentiate the mesenchymal, ectodermal and endodermal lineages and are easy to harvest. Additionally, adipose tissue yields a high number of ADSC per volume of tissue. Based on this background knowledge, the purpose of this review is to summarise and describe the proliferation and differentiation capacities of ADSC together with current preclinical data regarding the use of ADSC as regenerative tools in plastic and reconstructive surgery.
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Affiliation(s)
- Naghmeh Naderi
- Reconstructive Surgery & Regenerative Medicine Group, Institute of Life Sciences (ILS)Swansea University Medical SchoolSwanseaUK
- Welsh Centre for Burns & Plastic SurgeryABMU Health BoardSwanseaUK
| | - Emman J Combellack
- Reconstructive Surgery & Regenerative Medicine Group, Institute of Life Sciences (ILS)Swansea University Medical SchoolSwanseaUK
- Welsh Centre for Burns & Plastic SurgeryABMU Health BoardSwanseaUK
| | - Michelle Griffin
- UCL Centre for Nanotechnology and Regenerative MedicineUniversity College LondonLondonUK
| | - Tina Sedaghati
- UCL Centre for Nanotechnology and Regenerative MedicineUniversity College LondonLondonUK
| | - Muhammad Javed
- Reconstructive Surgery & Regenerative Medicine Group, Institute of Life Sciences (ILS)Swansea University Medical SchoolSwanseaUK
- Welsh Centre for Burns & Plastic SurgeryABMU Health BoardSwanseaUK
| | - Michael W Findlay
- Plastic & Reconstructive SurgeryStanford University Medical CentreStanfordCAUSA
| | | | - Afshin Mosahebi
- UCL Centre for Nanotechnology and Regenerative MedicineUniversity College LondonLondonUK
- Department of Plastic SurgeryRoyal Free NHS Foundation TrustLondonUK
| | - Peter EM Butler
- Department of Plastic SurgeryRoyal Free NHS Foundation TrustLondonUK
| | - Alexander M Seifalian
- UCL Centre for Nanotechnology and Regenerative MedicineUniversity College LondonLondonUK
| | - Iain S Whitaker
- Reconstructive Surgery & Regenerative Medicine Group, Institute of Life Sciences (ILS)Swansea University Medical SchoolSwanseaUK
- Welsh Centre for Burns & Plastic SurgeryABMU Health BoardSwanseaUK
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33
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Oryan A, Alemzadeh E, Moshiri A. Burn wound healing: present concepts, treatment strategies and future directions. J Wound Care 2017; 26:5-19. [DOI: 10.12968/jowc.2017.26.1.5] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- A. Oryan
- Professor, Department of Pathology, School of Veterinary Medicine, Shiraz University, Iran
| | - E. Alemzadeh
- PhD student, Department of Biotechnology, School of Veterinary Medicine, Shiraz University, Iran
| | - A. Moshiri
- Assistant Professor, Division of Regenerative Pharmacology, RAZI Drug Research Centre, Iran University of Medical Sciences, Tehran, Iran; and Division of Surgery and Radiology, Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Iran
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Chen L, Xing Q, Zhai Q, Tahtinen M, Zhou F, Chen L, Xu Y, Qi S, Zhao F. Pre-vascularization Enhances Therapeutic Effects of Human Mesenchymal Stem Cell Sheets in Full Thickness Skin Wound Repair. Am J Cancer Res 2017; 7:117-131. [PMID: 28042321 PMCID: PMC5196890 DOI: 10.7150/thno.17031] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 09/29/2016] [Indexed: 01/07/2023] Open
Abstract
Split thickness skin graft (STSG) implantation is one of the standard therapies for full thickness wound repair when full thickness autologous skin grafts (FTG) or skin flap transplants are inapplicable. Combined transplantation of STSG with dermal substitute could enhance its therapeutic effects but the results remain unsatisfactory due to insufficient blood supply at early stages, which causes graft necrosis and fibrosis. Human mesenchymal stem cell (hMSC) sheets are capable of accelerating the wound healing process. We hypothesized that pre-vascularized hMSC sheets would further improve regeneration by providing more versatile angiogenic factors and pre-formed microvessels. In this work, in vitro cultured hMSC cell sheets (HCS) and pre-vascularized hMSC cell sheets (PHCS) were implanted in a rat full thickness skin wound model covered with an autologous STSG. Results demonstrated that the HCS and the PHCS implantations significantly reduced skin contraction and improved cosmetic appearance relative to the STSG control group. The PHCS group experienced the least hemorrhage and necrosis, and lowest inflammatory cell infiltration. It also induced the highest neovascularization in early stages, which established a robust blood micro-circulation to support grafts survival and tissue regeneration. Moreover, the PHCS grafts preserved the largest amount of skin appendages, including hair follicles and sebaceous glands, and developed the smallest epidermal thickness. The superior therapeutic effects seen in PHCS groups were attributed to the elevated presence of growth factors and cytokines in the pre-vascularized cell sheet, which exerted a beneficial paracrine signaling during wound repair. Hence, the strategy of combining STSG with PHCS implantation appears to be a promising approach in regenerative treatment of full thickness skin wounds.
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Hair Follicle Morphogenesis in the Treatment of Mouse Full-Thickness Skin Defects Using Composite Human Acellular Amniotic Membrane and Adipose Derived Mesenchymal Stem Cells. Stem Cells Int 2016; 2016:8281235. [PMID: 27597871 PMCID: PMC5002483 DOI: 10.1155/2016/8281235] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/24/2016] [Accepted: 07/03/2016] [Indexed: 01/04/2023] Open
Abstract
Early repair of skin injury and maximal restoration of the function and appearance have become important targets of clinical treatment. In the present study, we observed the healing process of skin defects in nude mice and structural characteristics of the new skin after transplantation of isolated and cultured adipose derived mesenchymal stem cells (ADMSCs) onto the human acellular amniotic membrane (AAM). The result showed that ADMSCs were closely attached to the surface of AAM and grew well 24 h after seeding. Comparison of the wound healing rate at days 7, 14, and 28 after transplantation showed that ADMSCs seeded on AAM facilitated the healing of full-thickness skin wounds more effectively as compared with either hAM or AAM alone, indicating that ADMSCs participated in skin regeneration. More importantly, we noticed a phenomenon of hair follicle development during the process of skin repair. Composite ADMSCs and AAM not only promoted the healing of the mouse full-thickness defects but also facilitated generation of the appendages of the affected skin, thus promoting restoration of the skin function. Our results provide a new possible therapy idea for the treatment of skin wounds with respect to both anatomical regeneration and functional restoration.
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Frueh FS, Menger MD, Lindenblatt N, Giovanoli P, Laschke MW. Current and emerging vascularization strategies in skin tissue engineering. Crit Rev Biotechnol 2016; 37:613-625. [PMID: 27439727 DOI: 10.1080/07388551.2016.1209157] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Vascularization is a key process in skin tissue engineering, determining the biological function of artificial skin implants. Hence, efficient vascularization strategies are a major prerequisite for the safe application of these implants in clinical practice. Current approaches include (i) modification of structural and physicochemical properties of dermal scaffolds, (ii) biological scaffold activation with growth factor-releasing systems or gene vectors, and (iii) generation of prevascularized skin substitutes by seeding scaffolds with vessel-forming cells. These conventional approaches may be further supplemented by emerging strategies, such as transplantation of adipose tissue-derived microvascular fragments, 3D bioprinting and microfluidics, miRNA modulation, cell sheet engineering, and fabrication of photosynthetic scaffolds. The successful translation of these vascularization strategies from bench to bedside may pave the way for a broad clinical implementation of skin tissue engineering.
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Affiliation(s)
- Florian S Frueh
- a Institute for Clinical and Experimental Surgery , Saarland University , Homburg (Saar) , Germany.,b Division of Plastic Surgery and Hand Surgery , University Hospital Zurich , Zurich , Switzerland
| | - Michael D Menger
- a Institute for Clinical and Experimental Surgery , Saarland University , Homburg (Saar) , Germany
| | - Nicole Lindenblatt
- b Division of Plastic Surgery and Hand Surgery , University Hospital Zurich , Zurich , Switzerland
| | - Pietro Giovanoli
- b Division of Plastic Surgery and Hand Surgery , University Hospital Zurich , Zurich , Switzerland
| | - Matthias W Laschke
- a Institute for Clinical and Experimental Surgery , Saarland University , Homburg (Saar) , Germany
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Uzunalli G, Mammadov R, Yesildal F, Alhan D, Ozturk S, Ozgurtas T, Guler MO, Tekinay AB. Angiogenic Heparin-Mimetic Peptide Nanofiber Gel Improves Regenerative Healing of Acute Wounds. ACS Biomater Sci Eng 2016; 3:1296-1303. [DOI: 10.1021/acsbiomaterials.6b00165] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gozde Uzunalli
- Institute
of Materials Science and Nanotechnology, National Nanotechnology Research
Center (UNAM), Bilkent University, Ankara, Turkey 06800
| | - Rashad Mammadov
- Institute
of Materials Science and Nanotechnology, National Nanotechnology Research
Center (UNAM), Bilkent University, Ankara, Turkey 06800
| | - Fatih Yesildal
- Department
of Medical Biochemistry, Diyarbakir Military Hospital, Diyarbakir, Turkey
| | - Dogan Alhan
- Gulhane Military Medical Academy, Ankara, Turkey
| | | | | | - Mustafa O. Guler
- Institute
of Materials Science and Nanotechnology, National Nanotechnology Research
Center (UNAM), Bilkent University, Ankara, Turkey 06800
| | - Ayse B. Tekinay
- Institute
of Materials Science and Nanotechnology, National Nanotechnology Research
Center (UNAM), Bilkent University, Ankara, Turkey 06800
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38
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Bayati V, Abbaspour MR, Dehbashi FN, Neisi N, Hashemitabar M. A dermal equivalent developed from adipose-derived stem cells and electrospun polycaprolactone matrix: an in vitro and in vivo study. Anat Sci Int 2016; 92:509-520. [DOI: 10.1007/s12565-016-0352-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 06/10/2016] [Indexed: 01/22/2023]
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39
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Assi R, Foster TR, He H, Stamati K, Bai H, Huang Y, Hyder F, Rothman D, Shu C, Homer-Vanniasinkam S, Cheema U, Dardik A. Delivery of mesenchymal stem cells in biomimetic engineered scaffolds promotes healing of diabetic ulcers. Regen Med 2016; 11:245-60. [PMID: 26986810 DOI: 10.2217/rme-2015-0045] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
AIM We hypothesized that delivery of mesenchymal stem cells (MSCs) in a biomimetic collagen scaffold improves wound healing in a diabetic mouse model. MATERIALS & METHODS Rolled collagen scaffolds containing MSCs were implanted or applied topically to diabetic C57BL/6 mice with excisional wounds. RESULTS Rolled scaffolds were hypoxic, inducing MSC synthesis and secretion of VEGF. Diabetic mice with wounds treated with rolled scaffolds containing MSCs showed increased healing compared with controls. Histologic examination showed increased cellular proliferation, increased VEGF expression and capillary density, and increased numbers of macrophages, fibroblasts and smooth muscle cells. Addition of laminin to the collagen scaffold enhanced these effects. CONCLUSION Activated MSCs delivered in a biomimetic-collagen scaffold enhanced wound healing in a translationally relevant diabetic mouse model.
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Affiliation(s)
- Roland Assi
- Vascular Biology & Therapeutics Program & the Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Trenton R Foster
- Vascular Biology & Therapeutics Program & the Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Hao He
- Vascular Biology & Therapeutics Program & the Department of Surgery, Yale University School of Medicine, New Haven, CT, USA.,Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Katerina Stamati
- UCL Institute of Orthopaedics & Musculoskeletal Sciences, UCL Division of Surgery & Interventional Sciences, University College London, London, UK
| | - Hualong Bai
- Vascular Biology & Therapeutics Program & the Department of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Yuegao Huang
- Departments of Diagnostic Radiology & Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Fahmeed Hyder
- Departments of Diagnostic Radiology & Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Douglas Rothman
- Departments of Diagnostic Radiology & Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Chang Shu
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Shervanthi Homer-Vanniasinkam
- UCL Institute of Orthopaedics & Musculoskeletal Sciences, UCL Division of Surgery & Interventional Sciences, University College London, London, UK
| | - Umber Cheema
- UCL Institute of Orthopaedics & Musculoskeletal Sciences, UCL Division of Surgery & Interventional Sciences, University College London, London, UK
| | - Alan Dardik
- Vascular Biology & Therapeutics Program & the Department of Surgery, Yale University School of Medicine, New Haven, CT, USA.,Department of Surgery, VA Connecticut Healthcare Systems, West Haven, CT, USA
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40
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Parmaksiz M, Dogan A, Odabas S, Elçin AE, Elçin YM. Clinical applications of decellularized extracellular matrices for tissue engineering and regenerative medicine. Biomed Mater 2016; 11:022003. [DOI: 10.1088/1748-6041/11/2/022003] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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41
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Domingues JA, Cherutti G, Motta AC, Hausen MA, Oliveira RT, Silva-Zacarin EC, Barbo MLP, Duek EA. Bilaminar Device of Poly(Lactic-co-Glycolic Acid)/Collagen Cultured With Adipose-Derived Stem Cells for Dermal Regeneration. Artif Organs 2016; 40:938-949. [DOI: 10.1111/aor.12671] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Juliana A. Domingues
- Department of Cell Biology and Structural; Biology Institute; UNICAMP; Campinas Brazil
| | - Giselle Cherutti
- Department of Materials Engineering; Faculty of Mechanical Engineering; UNICAMP; Campinas Brazil
| | - Adriana C. Motta
- Department of Physiological Sciences; Biomaterials Laboratory; PUC- SP; Sorocaba Brazil
| | - Moema A. Hausen
- Department of Biology; Structural Biology Laboratory; UFSCAR; Sorocaba Brazil
| | - Rômulo T.D. Oliveira
- Department of Physiological Sciences; Biomaterials Laboratory; PUC- SP; Sorocaba Brazil
| | | | | | - Eliana A.R. Duek
- Department of Materials Engineering; Faculty of Mechanical Engineering; UNICAMP; Campinas Brazil
- Department of Physiological Sciences; Biomaterials Laboratory; PUC- SP; Sorocaba Brazil
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GASPAR A, CONSTANTIN D, SECIU AM, MOLDOVAN L, CRACIUNESCU O, GANEA E. Human adipose-derived stem cells differentiation into epidermal cells and interaction with human keratinocytes in coculture. Turk J Biol 2016. [DOI: 10.3906/biy-1502-36] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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43
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Theodora C, Sara P, Silvio F, Alessandra B, Giuseppe T, Barbara V, Barbara C, Sabrina R, Silvia D, Stefania P, Mario M, Maria Luisa T, Maura F. Platelet lysate and adipose mesenchymal stromal cells on silk fibroin nonwoven mats for wound healing. J Appl Polym Sci 2015. [DOI: 10.1002/app.42942] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chlapanidas Theodora
- Department of Drug Sciences; Medicinal Chemistry and Technology Section, University of Pavia; Pavia 27100 Italy
| | - Perteghella Sara
- Department of Drug Sciences; Medicinal Chemistry and Technology Section, University of Pavia; Pavia 27100 Italy
| | - Faragò Silvio
- Innovhub, Stazioni Sperimentali per L'industria, Silk Division; Milan 20133 Italy
| | - Boschi Alessandra
- Innovhub, Stazioni Sperimentali per L'industria, Silk Division; Milan 20133 Italy
| | - Tripodo Giuseppe
- Department of Drug Sciences; Medicinal Chemistry and Technology Section, University of Pavia; Pavia 27100 Italy
| | - Vigani Barbara
- Department of Drug Sciences; Medicinal Chemistry and Technology Section, University of Pavia; Pavia 27100 Italy
| | - Crivelli Barbara
- Department of Drug Sciences; Medicinal Chemistry and Technology Section, University of Pavia; Pavia 27100 Italy
| | - Renzi Sabrina
- Cell Culture Center, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna; Brescia 25124 Italy
| | - Dotti Silvia
- Cell Culture Center, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna; Brescia 25124 Italy
| | - Preda Stefania
- Department of Drug Sciences; Pharmacology Section, University of Pavia; Pavia 27100 Italy
| | - Marazzi Mario
- Struttura Semplice Tissue Therapy; Niguarda Ca' Granda Hospital; Milan 20162 Italy
| | - Torre Maria Luisa
- Department of Drug Sciences; Medicinal Chemistry and Technology Section, University of Pavia; Pavia 27100 Italy
| | - Ferrari Maura
- Cell Culture Center, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna; Brescia 25124 Italy
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44
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Parmaksiz M, Elcin AE, Elcin YM. Decellularization of bovine small intestinal submucosa and its use for the healing of a critical-sized full-thickness skin defect, alone and in combination with stem cells, in a small rodent model. J Tissue Eng Regen Med 2015; 11:1754-1765. [DOI: 10.1002/term.2071] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 05/27/2015] [Accepted: 06/12/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Mahmut Parmaksiz
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory; Ankara University Faculty of Science and Ankara University Stem Cell Institute; Ankara Turkey
| | - A. Eser Elcin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory; Ankara University Faculty of Science and Ankara University Stem Cell Institute; Ankara Turkey
| | - Y. Murat Elcin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory; Ankara University Faculty of Science and Ankara University Stem Cell Institute; Ankara Turkey
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45
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Goessling W, North TE. Repairing quite swimmingly: advances in regenerative medicine using zebrafish. Dis Model Mech 2015; 7:769-76. [PMID: 24973747 PMCID: PMC4073267 DOI: 10.1242/dmm.016352] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Regenerative medicine has the promise to alleviate morbidity and mortality caused by organ dysfunction, longstanding injury and trauma. Although regenerative approaches for a few diseases have been highly successful, some organs either do not regenerate well or have no current treatment approach to harness their intrinsic regenerative potential. In this Review, we describe the modeling of human disease and tissue repair in zebrafish, through the discovery of disease-causing genes using classical forward-genetic screens and by modulating clinically relevant phenotypes through chemical genetic screening approaches. Furthermore, we present an overview of those organ systems that regenerate well in zebrafish in contrast to mammalian tissue, as well as those organs in which the regenerative potential is conserved from fish to mammals, enabling drug discovery in preclinical disease-relevant models. We provide two examples from our own work in which the clinical translation of zebrafish findings is either imminent or has already proven successful. The promising results in multiple organs suggest that further insight into regenerative mechanisms and novel clinically relevant therapeutic approaches will emerge from zebrafish research in the future.
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Affiliation(s)
- Wolfram Goessling
- Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, MA 02215, USA. Harvard Medical School, Boston, MA 02115, USA. Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
| | - Trista E North
- Harvard Medical School, Boston, MA 02115, USA. Harvard Stem Cell Institute, Cambridge, MA 02138, USA. Beth Israel Deaconess Medical Center, MA 02115, USA.
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46
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Kato H, Lo A, Kuo S, Nie S, Marcelo CL, Lubman DM, Feinberg SE. Proteomics Characterization of Primary Human Oral Epithelial Cells Using a Novel Culture Technique for Use in Tissue Regeneration. MOJ PROTEOMICS & BIOINFORMATICS 2015; 2. [PMID: 27042699 DOI: 10.15406/mojpb.2015.02.00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Oral mucosa keratinocytes are widely used in regenerative medicine. The unique cultured cell population "Epithelial-derived Pop-Up Keratinocytes (ePUKs)" was previously reported as undifferentiated cells. Gravity Assisted Cell Sorting (GACS) was used to isolate a small-sized population of undifferentiated cells enriched ePUKs. LC/MS/MS analysis was performed to define the cellular profile of ePUKs of primary human oral mucosa keratinocytes. Small sized ePUKs which showed increased expression of Dickkopf WNT signaling pathway inhibitor 1 (DKK1), serpin peptidase inhibitor, clade E (nexin, plasminogen activator inhibitor type 1), member 1 (SERPINE1), follistatin and tenascin-C were verified by Western blots. These proteins are involved in the regulation of cellular movement, hair follicle development and the maintenance of its stem cell niche. The fabrication of a tissue-engineered oral mucosa, ex vivo produced oral mucosa equivalent (EVPOME), using ePUKs showed increased abundance of these verified proteins. These findings indicate that the specific phenotype of ePUKs and their ability to influence wound healing promotion are implicated by highly expressed cellular movement regulatory proteins. Therefore, ePUKs may be a useful cell source for use in regenerative medicine.
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Affiliation(s)
- Hiroko Kato
- Department of Oral and Maxillofacial Surgery, University of Michigan, USA; Department of Biomimetics, Niigata University Postgraduate School of Medical and Dental Sciences, Japan
| | - Andy Lo
- Department of Surgery, University of Michigan Medical Center, USA
| | - Shiuhyang Kuo
- Department of Oral and Maxillofacial Surgery, University of Michigan, USA
| | - Song Nie
- Department of Surgery, University of Michigan Medical Center, USA
| | - Cynthia L Marcelo
- Department of Oral and Maxillofacial Surgery, University of Michigan, USA
| | - David M Lubman
- Department of Surgery, University of Michigan Medical Center, USA
| | - Stephen E Feinberg
- Department of Oral and Maxillofacial Surgery, University of Michigan, USA
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Watt SM, Gullo F, van der Garde M, Markeson D, Camicia R, Khoo CP, Zwaginga JJ. The angiogenic properties of mesenchymal stem/stromal cells and their therapeutic potential. Br Med Bull 2013; 108:25-53. [PMID: 24152971 PMCID: PMC3842875 DOI: 10.1093/bmb/ldt031] [Citation(s) in RCA: 182] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Blood vessel formation is fundamental to development, while its dysregulation can contribute to serious disease. Expectations are that hundreds of millions of individuals will benefit from therapeutic developments in vascular biology. MSCs are central to the three main vascular repair mechanisms. SOURCES OF DATA Key recent published literature and ClinicalTrials.gov. AREAS OF AGREEMENT MSCs are heterogeneous, containing multi-lineage stem and partly differentiated progenitor cells, and are easily expandable ex vivo. There is no single marker defining native MSCs in vivo. Their phenotype is strongly determined by their specific microenvironment. Bone marrow MSCs have skeletal stem cell properties. Having a perivascular/vascular location, they contribute to vascular formation and function and might be harnessed to regenerate a blood supply to injured tissues. AREAS OF CONTROVERSY These include MSC origin, phenotype and location in vivo and their ability to differentiate into functional cardiomyocytes and endothelial cells or act as vascular stem cells. In addition their efficacy, safety and potency in clinical trials in relation to cell source, dose, delivery route, passage and timing of administration, but probably even more on the local preconditioning and the mechanisms by which they exert their effects. GROWING POINTS Understanding the origin and the regenerative environment of MSCs, and manipulating their homing properties, proliferative ability and functionality through drug discovery and reprogramming strategies are important for their efficacy in vascular repair for regenerative medicine therapies and tissue engineering approaches. AREAS TIMELY FOR DEVELOPING RESEARCH Characterization of MSCs' in vivo origins and biological properties in relation to their localization within tissue niches, reprogramming strategies and newer imaging/bioengineering approaches.
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Affiliation(s)
- Suzanne M Watt
- Stem Cell Research Laboratory, Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK
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