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Huerta CT, Ortiz YY, Liu ZJ, Velazquez OC. Methods and Limitations of Augmenting Mesenchymal Stem Cells for Therapeutic Applications. Adv Wound Care (New Rochelle) 2023; 12:467-481. [PMID: 36301919 PMCID: PMC10254976 DOI: 10.1089/wound.2022.0107] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Significance: Given their capacity for self-renewal, multilineage differentiation, and immunomodulatory potential, mesenchymal stem cells (MSCs) represent a promising modality of clinical therapy for both regenerative medicine and immune diseases. In this study, we review the key approaches and popular methods utilized to boost potency and modify functions of MSCs for clinical purposes as well as their associated limitations. Recent Advances: Several major domains of cell modification strategies are currently employed by investigators to overcome these deficits and augment the therapeutic potential of MSCs. Priming MSCs with soluble factors or pharmacologic agents as well as manipulating oxygen availability in culture have been demonstrated to be effective biochemical methods to augment MSC potential. Distinct genetic and epigenetic methods have emerged in recent years to modify the genetic expression of target proteins and factors thereby modulating MSCs capacity for differentiation, migration, and proliferation. Physical methods utilizing three-dimensional culture methods and alternative cell delivery systems and scaffolds can be used to recapitulate the native MSC niche and augment their engraftment and viability for in vivo models. Critical Issues: Unmodified MSCs have demonstrated only modest benefits in many preclinical and clinical studies due to issues with cell engraftment, viability, heterogeneity, and immunocompatibility between donor and recipient. Furthermore, unmodified MSCs can have low inherent therapeutic potential for which intensive research over the past few decades has been dedicated to improving cell functionality and potency.
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Affiliation(s)
- Carlos Theodore Huerta
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Yulexi Y. Ortiz
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Zhao-Jun Liu
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Omaida C. Velazquez
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
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2
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Schneider I, Calcagni M, Buschmann J. Adipose-derived stem cells applied in skin diseases, wound healing and skin defects: a review. Cytotherapy 2023; 25:105-119. [PMID: 36115756 DOI: 10.1016/j.jcyt.2022.08.005] [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: 04/06/2022] [Revised: 06/17/2022] [Accepted: 08/11/2022] [Indexed: 01/18/2023]
Abstract
Adipose tissue presents a comparably easy source for obtaining stem cells, and more studies are increasingly investigating the therapeutic potential of adipose-derived stem cells. Wound healing, especially in chronic wounds, and treatment of skin diseases are some of the fields investigated. In this narrative review, the authors give an overview of some of the latest studies concerning wound healing as well as treatment of several skin diseases and concentrate on the different forms of application of adipose-derived stem cells.
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Affiliation(s)
| | - Maurizio Calcagni
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Johanna Buschmann
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland.
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Lu GM, Jiang LY, Huang DL, Rong YX, Li YH, Wei LX, Ning Y, Huang SF, Mo S, Meng FH, Li HM. Advanced Platelet-Rich Fibrin Extract Treatment Promotes the Proliferation and Differentiation of Human Adipose-Derived Mesenchymal Stem Cells through Activation of Tryptophan Metabolism. Curr Stem Cell Res Ther 2023; 18:127-142. [PMID: 34872484 DOI: 10.2174/1574888x16666211206150934] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/25/2021] [Accepted: 11/08/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Advanced platelet-rich fibrin extract (APRFE) contains a high concentration of various cytokines that are helpful for improving stem cells repair function. OBJECTIVE However, the underlying mechanism of APRFE improving stem cell repairing is not clear. METHODS We produced APRFE by centrifuging fresh peripheral blood samples and isolated and identified human adipose-derived mesenchymal stem cells (ADMSCs). The abundance of cytokines contained in APRFE was detected by the Enzyme-linked immunosorbent assay (ELISA). The ADMSCs treated with or without APRFE were collected for transcriptome sequencing. RESULTS Based on the sequencing data, the expression profiles were contracted. The differentially expressed genes and lncRNA (DEGs and DElncRNAs) were obtained using for the differential expression analysis. The lncRNA-miRNA-mRNA network was constructed based on the miRNet database. The further enrichment analysis results showed that the biological functions were mainly related to proliferation, differentiation, and cell-cell function. To explore the role of APRFE, the protein-protein interaction network was constructed among the cytokines included in APRFE and DEGs. Furthermore, we constructed the global regulatory network based on the RNAInter and TRRUST database. The pathways in the global regulatory network were considered as the core pathways. We found that the DEGs in the core pathways were associated with stemness scores. CONCLUSION In summary, we predicted that APRFE activated three pathways (tryptophan metabolism, mTOR signaling pathway, and adipocytokine signaling) to promote the proliferation and differentiation of ADMSCs. The finding may be helpful for guiding the application of ADMSCs in the clinic.
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Affiliation(s)
- Guan-Ming Lu
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China
| | - Li-Yuan Jiang
- Department of Orthopaedics, Guiping People's Hospital, Guigping, Guangxi, 537200, China
| | - Dong-Lin Huang
- Research Center of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, China
| | - Yong-Xian Rong
- Department of Burn and Plastic Surgery, Guiping People's Hospital, Guigping, Guangxi, 537200, China
| | - Yang-Hong Li
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China
| | - Liu-Xing Wei
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China
| | - Yan Ning
- Research Center of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, China
| | - Shan-Fu Huang
- Department of Dermatology, The People's Hospital of Binyang County, Binyang, Guangxi, 530405, China
| | - Steven Mo
- Yuan Dong International Academy of Life Sciences, Nanning, China
| | - Fu-Han Meng
- Department of Rehabilitation Medicine, The People's Hospital of Binyang County, Binyang, Guangxi, 530405, China
| | - Hong-Mian Li
- Research Center of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, China
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Sun Y, Zhao J, Zhang L, Li Z, Lei S. Effectiveness and safety of stem cell therapy for diabetic foot: a meta-analysis update. Stem Cell Res Ther 2022; 13:416. [PMID: 35964145 PMCID: PMC9375292 DOI: 10.1186/s13287-022-03110-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/02/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Diabetic foot (DF) is one of the most common and serious complications of diabetes mellitus (DM), which brings great psychological and economic pressure to patients. This study aimed to evaluate the efficacy of stem cells in the treatment of diabetic foot. METHODS All relevant studies in Cochrane, Embase, PubMed, Web of Science, China National Knowledge Infrastructure, and WanFang databases were systematically searched for meta-analysis. The outcomes consisted of ulcer or wound healing rate, amputation rate, new vessels, ankle-brachial index (ABI), transcutaneous oxygen pressure (TcPO2), pain-free walking distance, and rest pain score. Dichotomous outcomes were described as risk ratios (RR) with 95% confidence intervals (CIs), while continuous data were presented as standardized mean differences (SMDs) with 95% CIs. Statistical analysis was performed with RevMan 5.3 software. RESULTS A total of 14 studies with 683 participants were included in the meta-analysis. Meta-analysis showed that stem cell therapy was more effective than conventional therapy in terms of ulcer or wound healing rate [OR = 8.20 (5.33, 12.62)], improvement in lower extremity ischemia(new vessels) [OR = 16.48 (2.88, 94.18)], ABI [MD = 0.13 (0.04, 0.08)], TcO2[MD = 4.23 (1.82, 6.65)], pain-free walking distance [MD = 220.79 (82.10, 359.48)], and rest pain score [MD = - 1.94 (- 2.50, - 1.39)], while the amputation rate was significantly decreased [OR = 0.19 (0.10, 0.36)]. CONCLUSIONS The meta-analysis of the current studies has shown that stem cells are significantly more effective than traditional methods in the treatment of diabetic foot and can improve the quality of life of patients after treatment. Future studies should conduct large-scale, randomized, double-blind, placebo-controlled, multicenter trials with high-quality long-term follow-up to demonstrate the most effective cell types and therapeutic parameters for the treatment of diabetic foot.
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Affiliation(s)
- Yuming Sun
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Jinhong Zhao
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Lifang Zhang
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Zhexuan Li
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.
| | - Shaorong Lei
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.
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Zhou Y, Zhang XL, Lu ST, Zhang NY, Zhang HJ, Zhang J, Zhang J. Human adipose-derived mesenchymal stem cells-derived exosomes encapsulated in pluronic F127 hydrogel promote wound healing and regeneration. Stem Cell Res Ther 2022; 13:407. [PMID: 35941707 PMCID: PMC9358082 DOI: 10.1186/s13287-022-02980-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 06/21/2022] [Indexed: 11/23/2022] Open
Abstract
Background Large area skin trauma has always been a great challenge for both patients and clinicians. Exosomes originating from human adipose-derived mesenchymal stem cells (hADSCs) have been a novel promising cell-free treatment in cutaneous damage repair. Nevertheless, the low retention rate of exosomes post-transplantation in vivo remains a significant challenge in clinical applications. Herein, we purposed to explore the potential clinical application roles of hADSCs-Exos encapsulated in functional PF-127 hydrogel in wound healing.
Methods hADSCs-Exos were isolated from human hADSCs by ultracentrifugation. An injectable, biocompatible, and thermo-sensitive hydrogel Pluronic F-127 hydrogel was employed to encapsulate allogeneic hADSCs-Exos, and this complex was topically applied to a full-thickness cutaneous wound in mice. On different days post-transplantation, the mice were sacrificed, and the skin tissue was excised for histological and immunohistochemical analysis.
Results Compared with hADSCs-Exos or PF-127 only, PF-127/hADSCs-Exos complexes enhanced skin wound healing, promoted re-epithelialization, increased expression of Ki67, α-SMA, and CD31, facilitated collagen synthesis (Collagen I, Collagen III), up-regulated expression of skin barrier proteins (KRT1, AQP3), and reduced inflammation (IL-6, TNF-α, CD68, CD206). By using PF-127/hADSCs-Exos complexes, hADSCs-Exos can be administrated at lower doses frequency while maintaining the same therapeutic effects. Conclusion Administration of hADSCs-Exos in PF-127 improves the efficiency of exosome delivery, maintains the bioactivity of hADSCs-Exos, and optimizes the performance of hADSCs-Exos. Thus, this biomaterial-based exosome will be a promising treatment approach for the cutaneous rejuvenation of skin wounds.
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Affiliation(s)
- Yang Zhou
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Xing-Liao Zhang
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Shou-Tao Lu
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China.,National United Engineering Laboratory for Biomedical Material Modification Branden Industrial Park, Dezhou, 251100, Shandong, China
| | - Ning-Yan Zhang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Stem Cell Translational Research Center of Tongji Hospital, School of Life Science and Technology, Tongji University, 389 Xincun Road, Shanghai, 200065, China
| | - Hai-Jun Zhang
- National United Engineering Laboratory for Biomedical Material Modification Branden Industrial Park, Dezhou, 251100, Shandong, China. .,Tenth People's Hospital of Tongji University, Shanghai, China.
| | - Jing Zhang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of Ministry of Education, Stem Cell Translational Research Center of Tongji Hospital, School of Life Science and Technology, Tongji University, 389 Xincun Road, Shanghai, 200065, China. .,Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai, 200120, China.
| | - Jun Zhang
- Translational Medical Center for Stem Cell Therapy, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200092, China. .,Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai, 200120, China.
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Subramaniam T, Shaiful Hadi N, Sulaiman S, Fauzi MB, Hj Idrus RB, Chowdhury SR, Law JX, Maarof M. Comparison of three different skin substitutes in promoting wound healing in an ovine model. Burns 2022; 48:1198-1208. [PMID: 34893370 DOI: 10.1016/j.burns.2021.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/23/2021] [Accepted: 08/16/2021] [Indexed: 12/15/2022]
Abstract
Skin substitutes are designed dressings intended to promote wound closure. In previous in vitro and in vivo studies on small animal, an acellular skin patch made of collagen hydrogel with dermal fibroblast conditioned medium (Col-DFCM), a collagen sponge scaffold with freshly harvested skin cells (OTC), and a platelet-rich-plasma gel with freshly harvested skin cells (PRP) have been developed and tested for immediate treatment of full-thickness wound. However, to determine the safety and efficacy of these skin patches for clinical applications, further study in a large animal model is needed. The aim of this study is to evaluate the potential of Col-DFCM, OTC and PRP in treating full-thickness wound in an ovine model via histological analysis and immunohistochemistry staining were performed, with the untreated (NT) group serving as the control. Gross examination was conducted on day 7, 14 and 21 to determine the wound closure rate. The findings of percentage of wound size reduction showed that the wound healed fastest in the presence of Col-DFCM (91.34 ± 23.35%) followed by OTC (84.49 ± 23.13%), PRP (77.73 ± 20.9%) and NT group (73.94 ± 23.71%). Histological evaluation with Hematoxylin & Eosin (H & E) and Masson's trichrome staining was used to study the structure of the wound area. The results showed that OTC treated wound was more mature as indicated by the presence of a thinner epidermis followed by the Col-DFCM, PRP and NT group. Immunohistochemistry analysis also confirmed the integrity and maturity of the regenerated skin, with positive expression of cytokeratin 10 (CK10) and involucrin in the epidermal layer. In conclusion, Col-DFCM, OTC and PRP treatments promote healing of full-thickness wound and have the potential to be used clinically for rapid treatment of full-thickness wound.
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Affiliation(s)
- Thayaalini Subramaniam
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Nursharafana Shaiful Hadi
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Shamsul Sulaiman
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Mh Busra Fauzi
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Ruszymah Bt Hj Idrus
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia; Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Shiplu Roy Chowdhury
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Jia Xian Law
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia
| | - Manira Maarof
- Center for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras 56000, Kuala Lumpur, Malaysia.
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Nugud A, Alghfeli L, Elmasry M, El-Serafi I, El-Serafi AT. Biomaterials as a Vital Frontier for Stem Cell-Based Tissue Regeneration. Front Cell Dev Biol 2022; 10:713934. [PMID: 35399531 PMCID: PMC8987776 DOI: 10.3389/fcell.2022.713934] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 03/11/2022] [Indexed: 01/01/2023] Open
Abstract
Biomaterials and tissue regeneration represent two fields of intense research and rapid advancement. Their combination allowed the utilization of the different characteristics of biomaterials to enhance the expansion of stem cells or their differentiation into various lineages. Furthermore, the use of biomaterials in tissue regeneration would help in the creation of larger tissue constructs that can allow for significant clinical application. Several studies investigated the role of one or more biomaterial on stem cell characteristics or their differentiation potential into a certain target. In order to achieve real advancement in the field of stem cell-based tissue regeneration, a careful analysis of the currently published information is critically needed. This review describes the fundamental description of biomaterials as well as their classification according to their source, bioactivity and different biological effects. The effect of different biomaterials on stem cell expansion and differentiation into the primarily studied lineages was further discussed. In conclusion, biomaterials should be considered as an essential component of stem cell differentiation strategies. An intense investigation is still required. Establishing a consortium of stem cell biologists and biomaterial developers would help in a systematic development of this field.
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Affiliation(s)
- Ahmed Nugud
- Pediatric Department, Aljalila Children Hospital, Dubai, United Arab Emirates
| | - Latifa Alghfeli
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Moustafa Elmasry
- Department of Biomedical and Clinical Sciences (BKV), Linköping University, Linköping, Sweden
- Department of Hand Surgery and Plastic Surgery and Burns, Linköping University Hospital, Linköping, Sweden
| | - Ibrahim El-Serafi
- Department of Hand Surgery and Plastic Surgery and Burns, Linköping University Hospital, Linköping, Sweden
- Basic Medical Sciences Department, College of Medicine, Ajman University, Ajman, United Arab Emirates
| | - Ahmed T. El-Serafi
- Department of Biomedical and Clinical Sciences (BKV), Linköping University, Linköping, Sweden
- Department of Hand Surgery and Plastic Surgery and Burns, Linköping University Hospital, Linköping, Sweden
- *Correspondence: Ahmed T. El-Serafi,
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8
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Verboket RD, Söhling N, Heilani M, Fremdling C, Schaible A, Schröder K, Brune JC, Marzi I, Henrich D. The Induced Membrane Technique—The Filling Matters: Evaluation of Different Forms of Membrane Filling with and without Bone Marrow Mononuclear Cells (BMC) in Large Femoral Bone Defects in Rats. Biomedicines 2022; 10:biomedicines10030642. [PMID: 35327444 PMCID: PMC8945121 DOI: 10.3390/biomedicines10030642] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 12/04/2022] Open
Abstract
The Masquelet technique is used to treat large bone defects; it is a two-stage procedure based on an induced membrane. To improve the induced membrane process, demineralized bone matrix in granular (GDBM) and fibrous form (f-DBM) was tested with and without bone marrow mononuclear cells (BMC) as filling of the membrane against the gold standard filling with syngeneic cancellous bone (SCB). A total of 65 male Sprague–Dawley rats obtained a 5 mm femoral defect. These defects were treated with the induced membrane technique and filled with SCB, GDBM, or f-DBM, with or without BMC. After a healing period of eight weeks, the femurs were harvested and submitted for histological, radiological, and biomechanical analyses. The fracture load in the defect zone was lower compared to SCB in all groups. However, histological analysis showed comparable new bone formation, bone mineral density, and cartilage proportions and vascularization. The results suggest that f-DBM in combination with BMC and the induced membrane technique cannot reproduce the very good results of this material in large, non-membrane coated bone defects, nevertheless it supports the maturation of new bone tissue locally. It can be concluded that BMC should be applied in lower doses and inflammatory cells should be removed from the cell preparation before implantation.
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Affiliation(s)
- René D. Verboket
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
- Correspondence: ; Tel.: +49-69-6301-7110
| | - Nicolas Söhling
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
| | - Myriam Heilani
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
| | - Charlotte Fremdling
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
| | - Alexander Schaible
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
| | - Katrin Schröder
- Center of Physiology, Cardiovascular Physiology, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany;
| | - Jan C. Brune
- German Institute for Cell and Tissue Replacement (DIZG, gemeinnützige GmbH), 12555 Berlin, Germany;
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
| | - Dirk Henrich
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany; (N.S.); (M.H.); (C.F.); (A.S.); (I.M.); (D.H.)
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Engineering injectable vascularized tissues from the bottom-up: Dynamics of in-gel extra-spheroid dermal tissue assembly. Biomaterials 2021; 279:121222. [PMID: 34736148 DOI: 10.1016/j.biomaterials.2021.121222] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/30/2021] [Accepted: 10/21/2021] [Indexed: 02/05/2023]
Abstract
Modular tissue engineering approaches open up exciting perspectives for the biofabrication of vascularized tissues from the bottom-up, using micro-sized units such as spheroids as building blocks. While several techniques for 3D spheroid formation from multiple cell types have been reported, strategies to elicit the extra-spheroid assembly of complex vascularized tissues are still scarce. Here we describe an injectable approach to generate vascularized dermal tissue, as an example application, from spheroids combining fibroblasts and endothelial progenitors (OEC) in a xeno-free (XF) setting. Short-term cultured spheroids (1 day) were selected over mature spheroids (7 days), as they showed significantly higher angiogenic sprouting potential. Embedding spheroids in fibrin was crucial for triggering cell migration into the external milieu, while providing a 3D framework for in-gel extra-spheroid morphogenesis. Migrating fibroblasts proliferated and produced endogenous ECM forming a dense tissue, while OEC self-assembled into stable capillaries with lumen and basal lamina. Massive in vitro interconnection between sprouts from neighbouring spheroids rapidly settled an intricate vascular plexus. Upon injection into the chorioallantoic membrane of chick embryos, fibrin-entrapped pre-vascularized XF spheroids developed into a macrotissue with evident host vessel infiltration. After only 4 days, perfused chimeric capillaries with human cells were present in proximal areas, showing fast and functional inosculation between host and donor vessels. This method for generating dense vascularized tissue from injectable building blocks is clinically relevant and potentially useful for a range of applications.
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10
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Ebrahim N, Dessouky AA, Mostafa O, Hassouna A, Yousef MM, Seleem Y, El Gebaly EAEAM, Allam MM, Farid AS, Saffaf BA, Sabry D, Nawar A, Shoulah AA, Khalil AH, Abdalla SF, El-Sherbiny M, Elsherbiny NM, Salim RF. Adipose mesenchymal stem cells combined with platelet-rich plasma accelerate diabetic wound healing by modulating the Notch pathway. Stem Cell Res Ther 2021; 12:392. [PMID: 34256844 PMCID: PMC8276220 DOI: 10.1186/s13287-021-02454-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/12/2021] [Indexed: 02/08/2023] Open
Abstract
Background Diabetic foot ulceration is a serious chronic complication of diabetes mellitus characterized by high disability, mortality, and morbidity. Platelet-rich plasma (PRP) has been widely used for diabetic wound healing due to its high content of growth factors. However, its application is limited due to the rapid degradation of growth factors. The present study aimed to evaluate the efficacy of combined adipose-derived mesenchymal stem cells (ADSCs) and PRP therapy in promoting diabetic wound healing in relation to the Notch signaling pathway. Methods Albino rats were allocated into 6 groups [control (unwounded), sham (wounded but non-diabetic), diabetic, PRP-treated, ADSC-treated, and PRP+ADSCs-treated groups]. The effect of individual and combined therapy was evaluated by assessing wound closure rate, epidermal thickness, dermal collagen, and angiogenesis. Moreover, gene and protein expression of key elements of the Notch signaling pathway (Notch1, Delta-like canonical Notch ligand 4 (DLL4), Hairy Enhancer of Split-1 (Hes1), Hey1, Jagged-1), gene expression of angiogenic marker (vascular endothelial growth factor and stromal cell-derived factor 1) and epidermal stem cells (EPSCs) related gene (ß1 Integrin) were assessed. Results Our data showed better wound healing of PRP+ADSCs compared to their individual use after 7 and 14 days as the combined therapy caused reepithelialization and granulation tissue formation with a marked increase in area percentage of collagen, epidermal thickness, and angiogenesis. Moreover, Notch signaling was significantly downregulated, and EPSC proliferation and recruitment were enhanced compared to other treated groups and diabetic groups. Conclusions These data demonstrated that PRP and ADSCs combined therapy significantly accelerated healing of diabetic wounds induced experimentally in rats via modulating the Notch pathway, promoting angiogenesis and EPSC proliferation.
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Affiliation(s)
- Nesrine Ebrahim
- Department of Histology and Cell Biology Faculty of Medicine, Benha University, Benha, Egypt.,Stem Cell Unit, Faculty of Medicine, Benha University, Benha, Egypt
| | - Arigue A Dessouky
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ola Mostafa
- Department of Histology and Cell Biology Faculty of Medicine, Benha University, Benha, Egypt
| | - Amira Hassouna
- School of Interprofessional Health Studies, Faculty of Health and Environmental Sciences, AUT University, Auckland, New Zealand
| | - Mohamed M Yousef
- Department of Histology and Cell Biology Faculty of Medicine, Benha University, Benha, Egypt
| | - Yasmin Seleem
- Department of Clinical Pharmacology, Faculty of Medicine, Benha University, Benha, Egypt
| | | | - Mona M Allam
- Department of Medical Physiology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ayman Samir Farid
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Qalyubia, 13736, Egypt
| | - Bayan A Saffaf
- Department of Pharmacology, Faculty of Pharmacy, Future University, New Cairo, Egypt
| | - Dina Sabry
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt.,Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Badr University, Cairo, 11562, Egypt
| | - Ahmed Nawar
- Department of General Surgery, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ahmed A Shoulah
- Department of General Surgery, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ahmed H Khalil
- Department of Surgery, & Radiology Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Sami F Abdalla
- Clinical Department, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia.,Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Nehal M Elsherbiny
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt. .,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia.
| | - Rabab F Salim
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Benha University, Benha, Egypt.
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11
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Ren SY, Liu YS, Zhu GJ, Liu M, Shi SH, Ren XD, Hao YG, Gao RD. Strategies and challenges in the treatment of chronic venous leg ulcers. World J Clin Cases 2020. [PMID: 33269244 DOI: 10.12998/wjcc.v8.i21.5070.pmid:] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Evaluating patients with chronic venous leg ulcers (CVLUs) is essential to find the underlying etiology. The basic tenets in managing CVLUs are to remove the etiological causes, to address systemic and metabolic conditions, to examine the ulcers and artery pulses, and to control wound infection with debridement and eliminating excessive pressure on the wound. The first-line treatments of CVLUs remain wound care, debridement, bed rest with leg elevation, and compression. Evidence to support the efficacy of silver-based dressings in healing CVLUs is unavailable. Hydrogen peroxide is harmful to the growth of granulation tissue in the wound. Surgery options include a high ligation with or without stripping or ablation of the GSVs depending on venous reflux or insufficiency. Yet, not all CVLUs are candidates for surgical treatment because of comorbidities. When standard care of wound for 4 wk failed to heal CVLUs effectively, use of advanced wound care should be considered based on the available evidence. Negative pressure wound therapy facilitates granulation tissue development, thereby helping closure of CVLUs. Autologous split-thickness skin grafting is still the gold standard approach to close huge CVLUs. Hair punch graft appears to have a better result than traditional hairless punch graft for CVLUs. Application of adipose tissue or placenta-derived mesenchymal stem cells is a promising therapy for wound healing. Autologous platelet-rich plasma provides an alternative strategy for surgery for safe and natural healing of the ulcer. The confirmative efficacy of current advanced ulcer therapies needs more robust evidence.
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Affiliation(s)
- Shi-Yan Ren
- Department of General Surgery and Vascular Surgery, Aviation General Hospital, China Medical University, Beijing 100012, China.
| | - Yong-Sheng Liu
- Department of Dermatology, Aviation General Hospital, Beijing 100012, China
| | - Guo-Jian Zhu
- Department of General Surgery, Taian Communications Hospital, Taian 271000, Shandong Province, China
| | - Meng Liu
- Department of Surgery, Tianjin Hexi Hospital, Tianjin 300202, Tianjin, China
| | - Shao-Hui Shi
- Department of Orthopaedic Surgery, Aviation General Hospital, China Medical University, Beijing 100012, China
| | - Xiao-Dong Ren
- Department of Surgery, Wanquanqu Zhongyi Hospital, Zhangjiakou 076250, Hebei Province, China
| | - Ya-Guang Hao
- Department of Medical Administrative, Aviation General Hospital, China Medical University, Beijing 100012, China
| | - Rong-Ding Gao
- Department of General Surgery, Aviation General Hospital, China Medical University, Beijing 100012, China
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12
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Ren SY, Liu YS, Zhu GJ, Liu M, Shi SH, Ren XD, Hao YG, Gao RD. Strategies and challenges in the treatment of chronic venous leg ulcers. World J Clin Cases 2020; 8:5070-5085. [PMID: 33269244 PMCID: PMC7674718 DOI: 10.12998/wjcc.v8.i21.5070] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 08/06/2020] [Accepted: 09/28/2020] [Indexed: 02/05/2023] Open
Abstract
Evaluating patients with chronic venous leg ulcers (CVLUs) is essential to find the underlying etiology. The basic tenets in managing CVLUs are to remove the etiological causes, to address systemic and metabolic conditions, to examine the ulcers and artery pulses, and to control wound infection with debridement and eliminating excessive pressure on the wound. The first-line treatments of CVLUs remain wound care, debridement, bed rest with leg elevation, and compression. Evidence to support the efficacy of silver-based dressings in healing CVLUs is unavailable. Hydrogen peroxide is harmful to the growth of granulation tissue in the wound. Surgery options include a high ligation with or without stripping or ablation of the GSVs depending on venous reflux or insufficiency. Yet, not all CVLUs are candidates for surgical treatment because of comorbidities. When standard care of wound for 4 wk failed to heal CVLUs effectively, use of advanced wound care should be considered based on the available evidence. Negative pressure wound therapy facilitates granulation tissue development, thereby helping closure of CVLUs. Autologous split-thickness skin grafting is still the gold standard approach to close huge CVLUs. Hair punch graft appears to have a better result than traditional hairless punch graft for CVLUs. Application of adipose tissue or placenta-derived mesenchymal stem cells is a promising therapy for wound healing. Autologous platelet-rich plasma provides an alternative strategy for surgery for safe and natural healing of the ulcer. The confirmative efficacy of current advanced ulcer therapies needs more robust evidence.
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Affiliation(s)
- Shi-Yan Ren
- Department of General Surgery and Vascular Surgery, Aviation General Hospital, China Medical University, Beijing 100012, China
| | - Yong-Sheng Liu
- Department of Dermatology, Aviation General Hospital, Beijing 100012, China
| | - Guo-Jian Zhu
- Department of General Surgery, Taian Communications Hospital, Taian 271000, Shandong Province, China
| | - Meng Liu
- Department of Surgery, Tianjin Hexi Hospital, Tianjin 300202, Tianjin, China
| | - Shao-Hui Shi
- Department of Orthopaedic Surgery, Aviation General Hospital, China Medical University, Beijing 100012, China
| | - Xiao-Dong Ren
- Department of Surgery, Wanquanqu Zhongyi Hospital, Zhangjiakou 076250, Hebei Province, China
| | - Ya-Guang Hao
- Department of Medical Administrative, Aviation General Hospital, China Medical University, Beijing 100012, China
| | - Rong-Ding Gao
- Department of General Surgery, Aviation General Hospital, China Medical University, Beijing 100012, China
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13
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Yi H, Wang Y, Yang Z, Xie Z. Efficacy assessment of mesenchymal stem cell transplantation for burn wounds in animals: a systematic review. Stem Cell Res Ther 2020; 11:372. [PMID: 32859266 PMCID: PMC7456061 DOI: 10.1186/s13287-020-01879-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/23/2020] [Accepted: 08/06/2020] [Indexed: 01/09/2023] Open
Abstract
Background Clinically, severe burns remain one of the most challenging issues, but an ideal treatment is yet absent. Our purpose is to compare the efficacy of stem cell therapy in a preclinical model of burn wound healing. Methods Research reports on mesenchymal stem cells (MSCs) for burn wound healing were retrieved from 5 databases: PubMed, Embase, MEDLINE, Web of Science, and the Cochrane Library. The primary outcomes reported in this article include the un-healing rate of the wound area, the closure rate, and the wound area. Secondary outcomes included CD-31, vascular density, interleukin (IL)-10, thickness of eschar tissue, vascular endothelial growth factor (VEGF), and white blood cell count. Finally, a subgroup analysis was conducted to explore heterogeneity that potentially impacted the primary outcomes. A fixed-effects model with a 95% confidence interval (CI) was performed when no significant heterogeneity existed. Otherwise, a random-effects model was used. All data analysis was conducted by using Engauge Digitizer 10.8 and R software. Results Twenty eligible articles were finally included in the analysis. Stem cell therapy greatly improved the closure rate (2.00, 95% CI 0.52 to 3.48, p = 0.008) and compromised the wound area (− 2.36; 95% CI − 4.90 to 0.18; p = 0.069) rather than the un-healing rate of the wound area (− 11.10, 95% CI − 32.97 to 10.78, p = 0.320). Though p was 0.069, there was a trend toward shrinkage of the burn wound area after stem cell therapy. Vascular density (4.69; 95% CI 0.06 to 9.31; p = 0.047) and thickness of eschar tissue (6.56, 95% CI 1.15 to 11.98, p = 0.017) were also discovered to be significantly improved in the burn site of stem cell-treated animals. Moreover, we observed that animals in the stem cell group had an increased white blood cell count (0.84, 95% CI 0.01 to 1.66, p = 0.047) 5 days post treatment. Other indicators, such as VEGF (p = 0.381), CD-31 (p = 0.335) and IL-10 (p = 0.567), were not significantly impacted. Conclusions Despite limited data from preclinical trials, this meta-analysis suggests that stem cell therapy is curative in decreasing the burn wound area and provides some insights into future clinical studies of stem cell therapy for burns.
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Affiliation(s)
- Hanxiao Yi
- The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zhengjie, Nanchang, JiangXi Province, China
| | - Yang Wang
- Spine Surgery, Third Affiliated Hospital of Sun-Yat Sen University, No. 600, Tianhe Road, Tianhe District, Guangzhou, Guangdong Province, China
| | - Zhen Yang
- The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zhengjie, Nanchang, JiangXi Province, China.
| | - Zhiqin Xie
- The First Affiliated Hospital of Nanchang University, No. 17, Yongwai Zhengjie, Nanchang, JiangXi Province, China
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14
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Lu GM, Rong YX, Liang ZJ, Hunag DL, Ma YF, Luo ZZ, Wu FX, Liu XH, Liu Y, Mo S, Qi ZQ, Li HM. Multiomics global landscape of stemness-related gene clusters in adipose-derived mesenchymal stem cells. Stem Cell Res Ther 2020; 11:310. [PMID: 32698873 PMCID: PMC7374825 DOI: 10.1186/s13287-020-01823-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/07/2020] [Accepted: 07/10/2020] [Indexed: 12/15/2022] Open
Abstract
Background Adipose-derived mesenchymal stem cells (AD-MSCs) are a type of stem cell that is abundant and widely used. The molecular characteristics of AD-MSCs from different passages from donors of different ages have not been well elucidated. Methods Six kinds of AD-MSCs ((E1, E2, E3, Y1, Y2, and Y3) with E denoting cells derived from an elderly patient, Y denoting cells derived from a young patient, and 1, 2, and 3 representing passages 3, 6, and 10) were obtained from human abdominal adipose tissue. We obtained the protein expression profile, the mRNA expression profile, the lncRNA expression profile, and the methylation profile of each kind of AD-MSC by sequencing. After calculating the stemness indices, genes related to stemness were extracted. The multiomics correlation analysis was performed in the stemness-related genes. In addition, short time-series expression miner (STEM) analysis was performed for all cell passages and donor ages. To further explore the biological functions of the stemness-related genes, we performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. Finally, the lncRNA-KEGG network and transcription factor (TF)-KEGG network were constructed based on the RNAInter database and TRRUST v2 database. Results The stemness of the Y1, E1, and Y2 cells was higher than that of the E2, Y3, and E3 cells. The stemness was the highest for Y1 cells and the lowest for E3 cells. STEM analysis showed that five stemness-related gene clusters were associated with the cell passages, and only one gene cluster was associated with age. The enrichment analysis results showed that the biological processes (BPs) and KEGG pathways were mainly involved in the proliferation, differentiation, and migration of cells. The global regulatory landscape of AD-MSCs was constructed: 25 TFs and 16 lncRNAs regulated 21 KEGG pathways through 27 mRNAs. Furthermore, we obtained a core stemness-related gene set consisting of ITGAV, MAD2L1, and PCNA. These genes were expressed at higher levels in Y1 cells than in E3 cells. Conclusion The multiomics global landscape of stemness-related gene clusters was determined for AD-MSCs, which may be helpful for selecting AD-MSCs with increased stemness.
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Affiliation(s)
- Guan-Ming Lu
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Yong-Xian Rong
- Department of Burn and Plastic Surgery, Guiping People's Hospital, Guigping, 537200, Guangxi, China
| | - Zhi-Jie Liang
- Department of Plastic and Aesthetic Surgery, The Fifth Affiliated Hospital of Guangxi Medical University &The First People's Hospital of Nanning, Nanning, 530022, Guangxi, China
| | - Dong-Lin Hunag
- Department of Plastic and Aesthetic Surgery, The Fifth Affiliated Hospital of Guangxi Medical University &The First People's Hospital of Nanning, Nanning, 530022, Guangxi, China
| | - Yan-Fei Ma
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Zhi-Zhai Luo
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China
| | - Fang-Xiao Wu
- Department of Plastic and Aesthetic Surgery, The Fifth Affiliated Hospital of Guangxi Medical University &The First People's Hospital of Nanning, Nanning, 530022, Guangxi, China
| | - Xin-Heng Liu
- Department of Burn and Plastic Surgery, Guiping People's Hospital, Guigping, 537200, Guangxi, China
| | - Yu Liu
- Medical College of Guangxi University, Nanning, 530004, Guangxi, China
| | - Steven Mo
- Nanning Qiuzhijian Biotechnology Co., Ltd., Nanning, 530229, Guangxi, China
| | - Zhong-Quan Qi
- Medical College of Guangxi University, Nanning, 530004, Guangxi, China.
| | - Hong-Mian Li
- Department of Plastic and Aesthetic Surgery, The Fifth Affiliated Hospital of Guangxi Medical University &The First People's Hospital of Nanning, Nanning, 530022, Guangxi, China.
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15
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Enciso N, Avedillo L, Fermín ML, Fragío C, Tejero C. Cutaneous wound healing: canine allogeneic ASC therapy. Stem Cell Res Ther 2020; 11:261. [PMID: 32600465 PMCID: PMC7325024 DOI: 10.1186/s13287-020-01778-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/31/2020] [Accepted: 06/18/2020] [Indexed: 02/07/2023] Open
Abstract
Background Wound healing is a complex biological process comprised of a series of sequential events aiming to repair injured tissue. Adult mesenchymal stem cells (MSCs) have been used in cellular therapy in preclinical animal studies; a promising source of MSCs is adipose tissue (AT). In this paper, we evaluated the clinical value and safety of the application of cultured allogenic MSCs from AT for acute and chronic skin wound healing in a canine model. Methods Twenty-four dogs of different breeds between 1 and 10 years of age with acute and chronic wounds were studied. Morphology of the wounded skin was monitored for changes over time via serial photographs and histopathological studies. Results The percentage of the wounds that exhibited contraction and re-epithelialization were significantly different between wounds treated with adipose mesenchymal stem cells (ASCs) and control wounds; this effect was observed in both acute and chronic conditions. At 90 days, re-epithelization of acute and chronic wounds reached more than 97%. Histopathological study revealed a reduction in inflammatory infiltrate and the presence of multiple hair follicles on day 7 after treatment with ASCs, promoting epidermal and dermal regeneration. To guarantee the safety of our treatment, we determined the serum levels of cytokine markers in our patients. ASC treatment upregulated granulocyte-macrophage colony stimulating factor (GM-CSF) at the gene level, which may contribute to the recruitment of cells that participate in skin repair to the site of injury. Conclusions The development of an allogenic ASC therapy to improve wound healing in a canine model could have a clinical impact in human treatment.
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Affiliation(s)
- Nathaly Enciso
- "Experimental Hematology" UCM-Research Group, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain.,Department of Biochemistry and Molecular Biology, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain
| | - Luis Avedillo
- "Experimental Hematology" UCM-Research Group, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain.,Department of Biochemistry and Molecular Biology, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain
| | - María Luisa Fermín
- "Experimental Hematology" UCM-Research Group, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain.,Department of Animal Surgery and Medicine, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain
| | - Cristina Fragío
- "Experimental Hematology" UCM-Research Group, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain.,Department of Animal Surgery and Medicine, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain
| | - Concepción Tejero
- "Experimental Hematology" UCM-Research Group, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain. .,Department of Biochemistry and Molecular Biology, Veterinary Faculty, Complutense University of Madrid, Avda Puerta de Hierro s/n, 28040, Madrid, Spain.
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16
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Jiang T, Wang Z, Sun J. Human bone marrow mesenchymal stem cell-derived exosomes stimulate cutaneous wound healing mediates through TGF-β/Smad signaling pathway. Stem Cell Res Ther 2020; 11:198. [PMID: 32448395 PMCID: PMC7245763 DOI: 10.1186/s13287-020-01723-6] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/06/2020] [Accepted: 05/11/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Cutaneous wound healing represents a morphogenetic response to injury and is designed to restore anatomic and physiological function. Human bone marrow mesenchymal stem cell-derived exosomes (hBM-MSC-Ex) are a promising source for cell-free therapy and skin regeneration. METHODS In this study, we investigated the cell regeneration effects and its underlying mechanism of hBM-MSC-Ex on cutaneous wound healing in rats. In vitro studies, we evaluated the role of hBM-MSC-Ex in the two types of skin cells: human keratinocytes (HaCaT) and human dermal fibroblasts (HDFs) for the proliferation. For in vivo studies, we used a full-thickness skin wound model to evaluate the effects of hBM-MSC-Ex on cutaneous wound healing in vivo. RESULTS The results demonstrated that hBM-MSC-Ex promote both two types of skin cells' growth effectively and accelerate the cutaneous wound healing. Interestingly, we found that hBM-MSC-Ex significantly downregulated TGF-β1, Smad2, Smad3, and Smad4 expression, while upregulated TGF-β3 and Smad7 expression in the TGF-β/Smad signaling pathway. CONCLUSIONS Our findings indicated that hBM-MSC-Ex effectively promote the cutaneous wound healing through inhibiting the TGF-β/Smad signal pathway. The current results provided a new sight for the therapeutic strategy for the treatment of cutaneous wounds.
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Affiliation(s)
- Tiechao Jiang
- Department of Cardiology, The Third Hospital of Jilin University, 126 Xiantai St., Changchun, 130033, Jilin, China. .,Jilin Provincial Cardiovascular Research Institute, 126 Xiantai St., Changchun, 130033, Jilin, China.
| | - Zhongyu Wang
- Jilin Provincial Cardiovascular Research Institute, 126 Xiantai St., Changchun, 130033, Jilin, China
| | - Ji Sun
- Department of Pediatric Neurology, The First Hospital of Jilin University, 71 Xinmin St., Changchun, 130021, Jilin, China
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17
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Bridging Acellular Dermal Matrix in Abdominal Wall Repair following Radical Resection of Recurrent Endometrioma. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2020; 8:e2603. [PMID: 32095407 PMCID: PMC7015587 DOI: 10.1097/gox.0000000000002603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/04/2019] [Indexed: 11/25/2022]
Abstract
The patient is a 31-year-old woman with a history of prior resection of a presumed keloid scar around her Pfannenstiel incision found to be endometrial tissue on final pathology. She presented 5 years later with recurrence of pain and a mass associated with menses despite maximal medical therapy for endometriosis. Computed tomography of her abdomen and pelvis demonstrated an infiltrative soft tissue mass measuring 8.8 cm × 4.0 cm. Surgical oncology conducted an en bloc resection of the mass and obstetrics and gynecology performed a concomitant total abdominal hysterectomy and bilateral salpingo-oophorectomy. Plastic and reconstructive surgery completed the repair of the final 23 cm × 10 cm full-thickness abdominal wall defect with bridging biologic mesh, complex layered closure, and incisional negative-pressure wound therapy. Final pathology confirmed a diagnosis of endometriosis. Patient’s hospital course was uncomplicated, and follow-up at 6 months does not demonstrate clinical or radiographic evidence of bulge or hernia recurrence. Abdominal wall endometrioma is a well-documented occurrence in prior cesarean scars; plastic surgeons can contribute to a multidisciplinary approach in reconstruction when resection compromises abdominal wall integrity, necessitating expertise in complex repairs.
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Gentile P, Calabrese C, De Angelis B, Pizzicannella J, Kothari A, Garcovich S. Impact of the Different Preparation Methods to Obtain Human Adipose-Derived Stromal Vascular Fraction Cells (AD-SVFs) and Human Adipose-Derived Mesenchymal Stem Cells (AD-MSCs): Enzymatic Digestion Versus Mechanical Centrifugation. Int J Mol Sci 2019; 20:E5471. [PMID: 31684107 PMCID: PMC6862236 DOI: 10.3390/ijms20215471] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 12/16/2022] Open
Abstract
Autologous therapies using adipose-derived stromal vascular fraction (AD-SVFs) and adult adipose-derived mesenchymal stem cells (AD-MSCs) warrant careful preparation of the harvested adipose tissue. Currently, no standardized technique for this preparation exists. Processing quantitative standards (PQSs) define manufacturing quantitative variables (such as time, volume, and pressure). Processing qualitative standards (PQLSs) define the quality of the materials and methods in manufacturing. The purpose of the review was to use PQSs and PQLSs to report the in vivo and in vitro results obtained by different processing kits that use different procedures (enzymatic vs. non-enzymatic) to isolate human AD-SVFs/AD-MSCs. PQSs included the volume of fat tissue harvested and reagents used, the time/gravity of centrifugation, and the time, temperature, and tilt level/speed of incubation and/or centrifugation. PQLSs included the use of a collagenase, a processing time of 30 min, kit weight, transparency of the kit components, the maintenance of a closed sterile processing environment, and the use of a small centrifuge and incubating rocker. Using a kit with the PQSs and PQLSs described in this study enables the isolation of AD-MSCs that meet the consensus quality criteria. As the discovery of new critical quality attributes (CQAs) of AD-MSCs evolve with respect to purity and potency, adjustments to these benchmark PQSs and PQLs will hopefully isolate AD-MSCs of various CQAs with greater reproducibility, quality, and safety. Confirmatory studies will no doubt need to be completed.
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Affiliation(s)
- Pietro Gentile
- Surgical Science Department, Plastic and Reconstructive Surgery, University of Rome "Tor Vergata", 00179 Rome, Italy.
| | | | - Barbara De Angelis
- Surgical Science Department, Plastic and Reconstructive Surgery, University of Rome "Tor Vergata", 00179 Rome, Italy.
| | | | - Ashutosh Kothari
- Chief of Breast Surgery Unit, Guy's Hospital, Guy's and St. Thomas' NHS Foundation Trust, London SE1 9RT, UK.
| | - Simone Garcovich
- Institute of Dermatology, F. Policlinico Gemelli IRCSS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
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19
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De Angelis B, D'Autilio MFLM, Orlandi F, Pepe G, Garcovich S, Scioli MG, Orlandi A, Cervelli V, Gentile P. Wound Healing: In Vitro and In Vivo Evaluation of a Bio-Functionalized Scaffold Based on Hyaluronic Acid and Platelet-Rich Plasma in Chronic Ulcers. J Clin Med 2019; 8:jcm8091486. [PMID: 31540446 PMCID: PMC6780765 DOI: 10.3390/jcm8091486] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/20/2022] Open
Abstract
Chronic ulcers are characterized by loss of substance without a normal tendency towards spontaneous healing. The Wound Bed Preparation Guideline advises that after diagnosis, the expert should correct the biological state of the ulcer micro-environment based on TIME principles (Tissue, Infection, Moisture balance, Epidermal). There are many ways to treat such ulcers, for example through use of advanced dressings, negative pressure, surgical toilets, dermal substitutes, autologous skin grafting, and free or local flaps. In vitro and in vivo pre-clinical models hold widely acknowledged potential yet complex limitations. Tissue bioengineering could be an ideal approach to foster innovative strategies in wound healing. Our observational study reports on an in vitro and in vivo evaluation of a bio-functionalized scaffold composed of platelet-rich plasma (PRP) and hyaluronic acid (HA) used in 182 patients affected by chronic ulcers (diabetic and vascular), comparing the results with a control group of 182 patients treated with traditional dressings (HA alone). After 30 days the patients who had undergone the combined treatment (PRP + HA), showed 96.8% ± 1.5% re-epithelialization, as compared to 78.4% ± 4.4% in the control group (HA only). Within 80 days, they had 98.4% ± 1.3% re-epithelialization as compared to 87.8% ± 4.1% in the control group (HA only; p < 0.05). No local recurrence was observed during the follow-up period. PRP + HA treatment showed stronger regenerative potential in terms of epidermal proliferation and dermal renewal compared with HA alone.
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Affiliation(s)
- Barbara De Angelis
- Department of Surgical Science, University of Rome Tor Vergata, Rome 00133, Italy.
| | | | - Fabrizio Orlandi
- Department of Surgical Science, University of Rome Tor Vergata, Rome 00133, Italy.
| | - Giampiero Pepe
- Department of Surgical Science, University of Rome Tor Vergata, Rome 00133, Italy.
| | - Simone Garcovich
- Institute of Dermatology, F. Policlinico Gemelli IRCSS, Università Cattolica del Sacro Cuore, Rome 00168, Italy.
| | - Maria Giovanna Scioli
- Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome 00133, Italy.
| | - Augusto Orlandi
- Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome 00133, Italy.
| | - Valerio Cervelli
- Department of Surgical Science, University of Rome Tor Vergata, Rome 00133, Italy.
| | - Pietro Gentile
- Department of Surgical Science, University of Rome Tor Vergata, Rome 00133, Italy.
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De Angelis B, Orlandi F, Morais D'Autilio MFL, Di Segni C, Scioli MG, Orlandi A, Cervelli V, Gentile P. Vasculogenic Chronic Ulcer: Tissue Regeneration with an Innovative Dermal Substitute. J Clin Med 2019; 8:E525. [PMID: 30999579 PMCID: PMC6518262 DOI: 10.3390/jcm8040525] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 04/08/2019] [Accepted: 04/15/2019] [Indexed: 12/25/2022] Open
Abstract
The healing of venous and arterial ulcers is slow, and in some cases, they may not heal at all. This study aims to demonstrate the clinical advantage of Nevelia®, an innovative collagen dermal template substitute (DS) in venous and arterial chronic ulcers treatment. 35 patients affected by chronic vascular ulcers with a mean area of 35.1 ± 31.8 cm2 were treated with DS followed by autologous dermal epidermal graft (DEG). Follow-up was performed at 7-14-21 and 28 days after DS implant and 7-14-21 and 28 days after DEG. At 28 days after DEG, the mean values of Manchester Scar Scale was of 1.8 ± 0.7 for skin color, 1.6 ± 0.7 for skin contour, 1.7 ± 0.7 for distortion, and 1.7 ± 0.7 for skin texture, whereas skin was matte in 27 patients (77%) and shiny in the remaining eight cases (23%). Histological findings correlate with the clinical result showing a regenerated skin with reactive epidermal hyperplasia and dermal granulation tissue after two weeks (T1), and after three weeks (T2) a re-epithelialization and a formed new tissue architecture analogue to normal skin physiology. These data suggest that Nevelia® could be useful to treat chronic venous and arterial ulcers.
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Affiliation(s)
- Barbara De Angelis
- Department of Surgical Science, Plastic and Reconstructive Surgery Unit, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Fabrizio Orlandi
- Department of Surgical Science, Plastic and Reconstructive Surgery Unit, University of Rome Tor Vergata, 00133 Rome, Italy.
| | | | - Chiara Di Segni
- Department of Surgical Science, Plastic and Reconstructive Surgery Unit, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Maria Giovanna Scioli
- Department of Biomedicine and Prevention, Pathologic Anatomy Institute, University of Rome "Tor Vergata", 00133 Rome, Italy.
| | - Augusto Orlandi
- Department of Biomedicine and Prevention, Pathologic Anatomy Institute, University of Rome "Tor Vergata", 00133 Rome, Italy.
| | - Valerio Cervelli
- Department of Surgical Science, Plastic and Reconstructive Surgery Unit, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Pietro Gentile
- Department of Surgical Science, Plastic and Reconstructive Surgery Unit, University of Rome Tor Vergata, 00133 Rome, Italy.
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Greco KV, Francis L, Huang H, Ploeg R, Boccaccini AR, Ansari T. Is quercetin an alternative natural crosslinking agent to genipin for long‐term dermal scaffolds implantation? J Tissue Eng Regen Med 2017; 12:e1716-e1724. [DOI: 10.1002/term.2338] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 10/03/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Karin V. Greco
- Northwick Park Institute for Medical Research (NPIMR) Watford Rd Harrow Middlesex UK
| | - Lydia Francis
- Northwick Park Institute for Medical Research (NPIMR) Watford Rd Harrow Middlesex UK
| | - Honglei Huang
- Nuffield Department of Surgical Sciences, Medical Sciences DivisionUniversity of Oxford Oxford UK
| | - Rutger Ploeg
- Nuffield Department of Surgical Sciences, Medical Sciences DivisionUniversity of Oxford Oxford UK
| | - Aldo R. Boccaccini
- Department of Materials Science, Engineering, Institute of BiomaterialsUniversity of Erlangen Nuremberg 91058 Erlangen Germany
| | - Tahera Ansari
- Northwick Park Institute for Medical Research (NPIMR) Watford Rd Harrow Middlesex UK
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22
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Mimura KKO, Moraes AR, Miranda AC, Greco R, Ansari T, Sibbons P, Greco KV, Oliani SM. Mechanisms underlying heterologous skin scaffold-mediated tissue remodeling. Sci Rep 2016; 6:35074. [PMID: 27725772 PMCID: PMC5057165 DOI: 10.1038/srep35074] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/19/2016] [Indexed: 11/09/2022] Open
Abstract
Biocompatibility of two newly developed porcine skin scaffolds was assessed after 3, 14, 21 and 90 days of implantation in rats. Both scaffolds showed absence of cells, preservation of ECM and mechanical properties comparable to non-decellularised skin before implantation. Host cell infiltration was much prominent on both scaffolds when compared to Permacol (surgical control). At day 3, the grafts were surrounded by polymorphonuclear cells, which were replaced by a notable number of IL-6-positive cells at day 14. Simultaneously, the number of pro-inflammatory M1-macrophage was enhanced. Interestingly, a predominant pro-remodeling M2 response, with newly formed vessels, myofibroblasts activation and a shift on the type of collagen expression was sequentially delayed (around 21 days). The gene expression of some trophic factors involved in tissue remodeling was congruent with the cellular events. Our findings suggested that the responsiveness of macrophages after non-crosslinked skin scaffolds implantation seemed to intimately affect various cell responses and molecular events; and this range of mutually reinforcing actions was predictive of a positive tissue remodeling that was essential for the long-standing success of the implants. Furthermore, our study indicates that non-crosslinked biologic scaffold implantation is biocompatible to the host tissue and somehow underlying molecular events involved in tissue repair.
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Affiliation(s)
- Kallyne K. O. Mimura
- Post-Graduation in Structural and Functional Biology, Federal University of São Paulo (UNIFESP), São Paulo, SP, 04023-900, Brazil
| | - Andréia R. Moraes
- Department of Biology; Instituto de Biociências, Letras e Ciências Exatas; São Paulo State University (UNESP), São José do Rio Preto, SP, 15054-000, Brazil
| | - Aline C. Miranda
- Department of Biology; Instituto de Biociências, Letras e Ciências Exatas; São Paulo State University (UNESP), São José do Rio Preto, SP, 15054-000, Brazil
| | - Rebecca Greco
- Department of Surgical Research, Northwick Park Institute for Medical Research, University College London (UCL), London, Middlesex, HA1 3UJ, United Kingdom
| | - Tahera Ansari
- Department of Surgical Research, Northwick Park Institute for Medical Research, University College London (UCL), London, Middlesex, HA1 3UJ, United Kingdom
| | - Paul Sibbons
- Department of Surgical Research, Northwick Park Institute for Medical Research, University College London (UCL), London, Middlesex, HA1 3UJ, United Kingdom
| | - Karin V. Greco
- Department of Surgical Research, Northwick Park Institute for Medical Research, University College London (UCL), London, Middlesex, HA1 3UJ, United Kingdom
| | - Sonia M. Oliani
- Post-Graduation in Structural and Functional Biology, Federal University of São Paulo (UNIFESP), São Paulo, SP, 04023-900, Brazil
- Department of Biology; Instituto de Biociências, Letras e Ciências Exatas; São Paulo State University (UNESP), São José do Rio Preto, SP, 15054-000, Brazil
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23
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Giordano P, Pullan RD, Ystgaard B, Gossetti F, Bradburn M, McKinley AJ, Smart NJ, Daniels IR. The use of an acellular porcine dermal collagen implant in the repair of complex abdominal wall defects: a European multicentre retrospective study. Tech Coloproctol 2015; 19:411-7. [PMID: 26081430 DOI: 10.1007/s10151-015-1307-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 03/19/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND The use of biological materials for the repair of complex abdominal wall defects has increased over the years; however, the role of these materials in routine practice remains unclear. The aim of the study was to evaluate clinical outcomes following the use of Permacol™ porcine collagen surgical implant in complex abdominal wall repair. METHODS This subset analysis of seven European sites from a multicentre retrospective study included patients undergoing open or laparoscopic surgery and treated with Permacol™ surgical implant. Inguinal, parastomal, diaphragmatic, perineal, and hiatal repairs were excluded. Only patients with at least 12 months of follow-up after surgery were included. RESULTS A total of 109 patients (56 males and 53 females) were included. Patients had a median of two comorbidities (range 0-6). Thirty-three per cent of patients were treated for recurrent hernia. All but one case used an open approach. Sixty-six per cent were Center for Disease Control wound class II-IV at the time of surgery. Fascial closure was achieved in 69%. Median follow-up length was 720 days (range 368-2857). Recurrence rates at 1 and 2 years were 9.2 and 18.3 %, respectively, and were higher in cases without fascial closure. One-year recurrence was higher following use of an onlay technique (P = 0.025). In a multivariate analysis, among 16 comorbidities examined only fascial closure significantly impacted 1-year recurrence (P = 0.049). CONCLUSIONS Data from this large retrospective multicentre European study strongly suggest the use of Permacol™ porcine collagen surgical implant to be safe and effective for complex abdominal wall repair. The recurrence rate was impacted by fascial closure.
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Affiliation(s)
- P Giordano
- Barts Health, Whipps Cross University Hospital, Whipps Cross Rd., Leytonstone, London, E11 1NR, UK,
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24
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Greco KV, Francis L, Somasundaram M, Greco G, English NR, Roether JA, Boccaccini AR, Sibbons P, Ansari T. Characterisation of porcine dermis scaffolds decellularised using a novel non-enzymatic method for biomedical applications. J Biomater Appl 2015; 30:239-53. [PMID: 25855682 DOI: 10.1177/0885328215578638] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Off-the-shelf availability of tissue-engineered skin constructs, tailored by different combinations of reagents to produce a highly preserved biological matrix is often the only means to help patients suffering skin damage. This study assessed the effect of five different decellularisation methods on porcine dermal scaffolds with regard to matrix composition, biomechanical strength, and cytotoxicity using an in vitro biocompatibility assay. Results demonstrated that four out of the five tested decellularisation protocols were efficient in producing acellular scaffolds. Nevertheless, decellularisation method using osmotic shock without enzymatic digestion showed to be efficient not only in removing cellular material and debris from dermal scaffolds but was also beneficial in the preservation of extracellular matrix components (glycosaminoglycans and collagen). Histological assessment revealed that the dermal architecture of coarse collagen bundles was preserved. Examinations by scanning electron microscopy and transmission electron microscopy showed that the arrangement and ultrastructure of collagen fibrils in the scaffolds were retained following non-enzymatic method of decellularisation and also after collagen crosslinking using genipin. Moreover, this decellularised scaffold was not only shown to be biologically compatible when co-cultured with bone marrow-derived mesenchymal stem cells and fibroblasts, but also stimulated the cells to release trophic factors essential for tissue regeneration.
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Affiliation(s)
- K V Greco
- Department of Surgical Research, NPIMR, Harrow, UK
| | - L Francis
- Department of Surgical Research, NPIMR, Harrow, UK
| | - M Somasundaram
- Department of Surgical Research, NPIMR, Harrow, UK Nuffield Department of Surgery, John Radcliffe Hospital Headington, University of Oxford, UK
| | - G Greco
- Department of Surgical Research, NPIMR, Harrow, UK
| | - Nicholas R English
- Antigen Presentation Research Group, Imperial College London/NPIMR, Harrow, UK
| | - Judith A Roether
- Institute of Polymer Materials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - P Sibbons
- Department of Surgical Research, NPIMR, Harrow, UK
| | - T Ansari
- Department of Surgical Research, NPIMR, Harrow, UK
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25
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Lazarus J, Alexander A. Porcine dermal collagen (Permacol) for redo bladder exstrophy closure. Urology 2013; 81:1349-51. [PMID: 23622769 DOI: 10.1016/j.urology.2013.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 07/30/2012] [Indexed: 11/28/2022]
Abstract
This report describes the use of a biosynthetic graft (Permacol) derived from porcine dermal collagen to reconstruct the abdominal wall of a 2-year-old boy with classic bladder exstrophy. The child had undergone 2 previous failed attempts at closure.
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Affiliation(s)
- John Lazarus
- Division of Urology, Red Cross Children's Hospital, University of Cape Town, South Africa.
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26
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Lichtenstein repair of indirect inguinal hernias with acellular tissue matrix grafts in adolescent patients: a prospective, randomized, controlled trial. Surg Today 2013; 44:429-35. [DOI: 10.1007/s00595-013-0550-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 12/18/2012] [Indexed: 11/30/2022]
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Ralls MW, Sueyoshi R, Herman R, Utter B, Czarnocki I, Luntz J, Brei D, Teitelbaum DH. Development of a novel approach to safely couple the intestine to a distraction-induced device for intestinal growth: use of reconstructive tissue matrix. Pediatr Surg Int 2013; 29:151-6. [PMID: 23108982 PMCID: PMC3557585 DOI: 10.1007/s00383-012-3198-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Distraction-induced intestinal growth may be a novel treatment for short bowel syndrome. Longitudinal, distractive tension created by the application of force creates a significant challenge: to produce adequate force, yet not cause perforation at the fixation points. This paper describes our development of a coupling strategy to allow for successful bowel lengthening. METHODS A curvilinear hydraulic device was implanted in an isolated Roux limb of small bowel in young Yorkshire pigs. Bowel was lengthened over a 2-week period. Study groups included: Group 1: Twelve silk transmural anchoring sutures into an engineered-coupling ring at the ends of each device. Group 2: Addition of felt pledgets to the coupling rings on the serosal surface of the small bowel. Group 3: Extraluminal use of either thin AlloDerm(®), thick AlloDerm(®), or Strattice™ mesh to anchor the device. RESULTS Group 1 (suture-only) resulted in a gradual pulling through the suture with increasing tension and no lengthening. Felt pledgets eroded in a similar fashion, causing abdominal sepsis. Thin AlloDerm(®) failed to prevent erosion; however, it protected against gross contamination. Animals in which either thick AlloDerm(®) or Strattice™ mesh was used survived complication free to the study endpoint. Both thick AlloDerm(®) and Strattice™ prevented erosion and perforation allowing for an average of 10.85 cm expansion. CONCLUSION This study demonstrates the use of either thick AlloDerm(®) or Strattice™ reconstructive tissue matrix which allows for safe and effective coupling. Further, we suggest this approach could be an adjunct to esophageal lengthening procedures.
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Affiliation(s)
- Matthew W. Ralls
- Section of Pediatric Surgery, Department of Surgery and the C.S. Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan
| | - Ryo Sueyoshi
- Section of Pediatric Surgery, Department of Surgery and the C.S. Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan
| | - Richard Herman
- Section of Pediatric Surgery, Department of Surgery and the C.S. Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan
| | - Brent Utter
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Isabel Czarnocki
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Jonathan Luntz
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Diann Brei
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Daniel H. Teitelbaum
- Section of Pediatric Surgery, Department of Surgery and the C.S. Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan
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28
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Preparation of immunogen-reduced and biocompatible extracellular matrices from porcine liver. J Biosci Bioeng 2012; 115:207-15. [PMID: 23068617 DOI: 10.1016/j.jbiosc.2012.08.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 08/16/2012] [Accepted: 08/27/2012] [Indexed: 01/19/2023]
Abstract
Decellularized biologic matrices are plausible biomedical materials for the bioengineering in liver transplantation. However, one of the concerns for safe medical application is the lack of objective assessment of the immunogen within the materials and the in vivo immune responses to the matrices. The purpose of this study was the production of immunogen-reduced and biocompatible matrices from porcine liver. In the present study, 0.1% SDS solution was effective for removing DNA fragments and sequences encoding possible immunogenic and viral antigens within the matrices. The PCR analysis showed that galactose-α-1,3 galactose β-1,4-N-acetylglucosamine (1,3 gal), swine leukocyte antigen (SLA), and porcine endogenous retrovirus (PERV) were completely removed in the matrices. Collagen and glycosaminoglycans (GAGs) were preserved over 63%-71%, respectively, compared to those of native liver. The implanted decellularized tissues showed minimal host responses and naturally degraded within 10 weeks. In this study, we produced immunogen-reduced and biocompatible extracellular matrices from porcine liver. Although future investigations would be required to determine the mechanism of the host reaction, this study could provide useful information of porcine liver-derived biologic matrices for liver researches.
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29
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Bellows CF, Smith A, Malsbury J, Helton WS. Repair of incisional hernias with biological prosthesis: a systematic review of current evidence. Am J Surg 2012; 205:85-101. [PMID: 22867726 DOI: 10.1016/j.amjsurg.2012.02.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Revised: 02/06/2012] [Accepted: 02/06/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND No consensus has been reached on the use of bioprosthetics to repair abdominal wall defects. The purpose of this systematic review was to summarize the outcomes from studies describing this use of various bioprosthetics for incisional hernia repair. METHODS Studies published by October 2011 were identified through literature searches using EMBASE, MEDLINE, and the Cochrane Central Register of Controlled Trials. RESULTS A total of 491 articles were scanned, 60 met eligibility criteria. Most studies were retrospective case studies. The studies ranged considerably in methodologic quality, with a modified Methodological Index of Nonrandomized Studies score from 5 to 12. Many repairs were performed in contaminated surgical sites (47.9%). At least one complication was seen in 87% of repairs. Major complications noted were wound infections (16.9%) and seroma (12.0%). With a mean follow-up period of 13.6 months the hernia recurrence rate was 15.2%. CONCLUSIONS There is an insufficient level of high-quality evidence in the literature on the value of bioprosthetics for incisional hernia repair. Randomized controlled trials that use standardized reporting comparing bioprosthetics with synthetic mesh for incisional hernia repair are needed.
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Affiliation(s)
- Charles F Bellows
- Department of Surgery, Tulane University, 1430 Tulane Ave., SL-22, New Orleans, LA 70112, USA.
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