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Tran VVT, Jin X, Hong KY, Chang H. Effects of Nanofat in Plastic and Reconstructive Surgery: A Systematic Review. Plast Reconstr Surg 2024; 154:451e-464e. [PMID: 37400953 DOI: 10.1097/prs.0000000000010905] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
BACKGROUND Since nanofat was first introduced by Tonnard in 2013, numerous studies have reported positive findings with its use; however, concerns exist regarding its effects and mechanisms, and the various methods used to generate nanofat also remain unclear. The authors conducted a systematic review to evaluate the efficacy of nanofat grafting alone in plastic and reconstructive surgery. METHODS The MEDLINE, Embase, Cochrane Central, Web of Science, and Scopus databases were searched for studies related to the use of nanofat grafting alone in plastic and reconstructive surgery. Outcomes of interest were all clinical results in humans or animals. RESULTS Twelve studies were included. No meta-analysis was conducted due to the clinical heterogeneity of the studies. In general, included studies had a low level of evidence. Six studies ( n = 253 patients) showed significant improvements in scar characteristics based on Patient and Observer Scar Assessment Scale, FACE-Q scale, physician assessment, patient satisfaction, and Vancouver Scar Scale scores. Four studies described the benefits of nanofat in skin rejuvenation (wrinkles, fine rhytides, pigmentation, and discoloration) through photographs, questionnaires, and indentation indices. Histologic evaluation illustrated overall increases in skin thickness, collagen, and elastic fibers. Three experimental studies showed the beneficial effects of nanofat on fat grafting, diabetic wound healing, and hair growth, with compelling histological evidence. No severe complication was reported. CONCLUSIONS Nanofat grafting shows potential benefits in scar and antiaging treatments, with conclusive histological evidence. Clinical studies of fat grafting, wound healing, and hair growth should be conducted, based on the results of this systematic review. Nanofat grafting could be a practical and safe procedure.
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Affiliation(s)
- Vinh Vuong The Tran
- From the Hi-Tech Center, Vinmec Healthcare System
- Department of Plastic and Reconstructive Surgery, Seoul National University College of Medicine
| | - Xian Jin
- Department of Plastic and Reconstructive Surgery, Seoul National University College of Medicine
| | - Ki Yong Hong
- Department of Plastic and Reconstructive Surgery, Seoul National University Hospital, Seoul National University College of Medicine
| | - Hak Chang
- Department of Plastic and Reconstructive Surgery, Seoul National University Hospital, Seoul National University College of Medicine
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Xiao Y, Nie M, Xu W, Zhang J, Lei S, Wu D. The efficiency of human fat products in wound healing: A systematic review and meta-analysis. Int Wound J 2024; 21:e70016. [PMID: 39216014 PMCID: PMC11365526 DOI: 10.1111/iwj.70016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/14/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
Wound development and healing involve intricate genetic and molecular processes, posing significant clinical management challenges. The objective of this study was to assess commonly used fat extracts' efficacy and safety (autologous fat, stromal vascular fraction and adipose-derived stem cells) in wound healing, particularly for refractory wounds, with the goal of providing evidence in clinical use. After a systematic review, 21 randomised controlled trials were included in our study. Based on the classification of human fat products, our meta-analysis revealed that the use of human fat products could speed healing rate, shorten healing time and achieve more complete healing, with statistically significant differences in outcome indicators when compared to conventional treatments. The analysis of histological findings across various studies indicated that fat extracts can promote epithelialization, collagen deposition and vascularization, thereby facilitating tissue regeneration and reducing inflammatory reactions. There were potential benefits to reducing patient pain levels after using adipose extracts. Furthermore, we analysed and summarised adverse events indicating the safe and effective clinical use of human fat products in wound treatment. Our research findings supported the efficiency of human fat products and demonstrated a high degree of safety in the clinical practice of wound management.
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Affiliation(s)
- Yutian Xiao
- Department of Plastic and Cosmetic Surgery, Xiangya HospitalCentral South UniversityChangshaPR China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaPR China
| | - Mengqi Nie
- Department of Plastic and Cosmetic Surgery, Xiangya HospitalCentral South UniversityChangshaPR China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaPR China
| | - Wenqing Xu
- Department of Plastic and Cosmetic Surgery, Xiangya HospitalCentral South UniversityChangshaPR China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaPR China
| | - Jinglve Zhang
- Department of Plastic and Cosmetic Surgery, Xiangya HospitalCentral South UniversityChangshaPR China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaPR China
| | - Shaorong Lei
- Department of Plastic and Cosmetic Surgery, Xiangya HospitalCentral South UniversityChangshaPR China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaPR China
| | - Dingyu Wu
- Department of Plastic and Cosmetic Surgery, Xiangya HospitalCentral South UniversityChangshaPR China
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaPR China
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Rayat Pisheh H, Nojabaei FS, Darvishi A, Rayat Pisheh A, Sani M. Cardiac tissue engineering: an emerging approach to the treatment of heart failure. Front Bioeng Biotechnol 2024; 12:1441933. [PMID: 39211011 PMCID: PMC11357970 DOI: 10.3389/fbioe.2024.1441933] [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: 05/31/2024] [Accepted: 08/01/2024] [Indexed: 09/04/2024] Open
Abstract
Heart failure is a major health problem in which the heart is unable to pump enough blood to meet the body's needs. It is a progressive disease that becomes more severe over time and can be caused by a variety of factors, including heart attack, cardiomyopathy and heart valve disease. There are various methods to cure this disease, which has many complications and risks. The advancement of knowledge and technology has proposed new methods for many diseases. One of the promising new treatments for heart failure is tissue engineering. Tissue engineering is a field of research that aims to create living tissues and organs to replace damaged or diseased tissue. The goal of tissue engineering in heart failure is to improve cardiac function and reduce the need for heart transplantation. This can be done using the three important principles of cells, biomaterials and signals to improve function or replace heart tissue. The techniques for using cells and biomaterials such as electrospinning, hydrogel synthesis, decellularization, etc. are diverse. Treating heart failure through tissue engineering is still under development and research, but it is hoped that there will be no transplants or invasive surgeries in the near future. In this study, based on the most important research in recent years, we will examine the power of tissue engineering in the treatment of heart failure.
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Affiliation(s)
- Hossein Rayat Pisheh
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Sadat Nojabaei
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Science, Tehran, Iran
| | - Ahmad Darvishi
- School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Rayat Pisheh
- Department of Biology, Payam Noor University (PUN), Shiraz, Iran
| | - Mahsa Sani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Shiraz Institute for Stem Cell & Regenerative Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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4
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Limido E, Weinzierl A, Ampofo E, Harder Y, Menger MD, Laschke MW. Short-term cryoprotectant-free cryopreservation at -20°C does not affect the viability and regenerative capacity of nanofat. Front Bioeng Biotechnol 2024; 12:1427232. [PMID: 39011155 PMCID: PMC11246958 DOI: 10.3389/fbioe.2024.1427232] [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: 05/03/2024] [Accepted: 06/14/2024] [Indexed: 07/17/2024] Open
Abstract
Nanofat is an autologous fat derivative with high regenerative activity, which is usually administered immediately after its generation by mechanical emulsification of adipose tissue. For its potential repeated use over longer time, we herein tested whether cryopreservation of nanofat is feasible. For this purpose, the inguinal fat pads of donor mice were processed to nanofat, which was i) frozen and stored in a freezer at -20°C, ii) shock frozen in liquid nitrogen with subsequent storage at -80°C or iii) gradually frozen and stored at -80°C. After 7 days, the cryopreserved nanofat samples were thawed and immunohistochemically compared with freshly generated nanofat (control). Nanofat frozen and stored at -20°C exhibited the lowest apoptotic rate and highest densities of blood and lymph vessels, which were comparable to those of control. Accordingly, nanofat cryopreserved at -20°C or control nanofat were subsequently fixed with platelet-rich plasma in full-thickness skin defects within dorsal skinfold chambers of recipient mice to assess vascularization, formation of granulation tissue and wound closure by means of stereomicroscopy, intravital fluorescence microscopy, histology and immunohistochemistry over 14 days. These analyses revealed no marked differences between the healing capacity of wounds filled with cryopreserved or control nanofat. Therefore, it can be concluded that cryopreservation of nanofat is simply feasible without affecting its viability and regenerative potential. This may broaden the range of future nanofat applications, which would particularly benefit from repeated administration of this autologous biological product.
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Affiliation(s)
- Ettore Limido
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Andrea Weinzierl
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Emmanuel Ampofo
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Yves Harder
- Department of Plastic, Reconstructive and Aesthetic Surgery, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Michael D. Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Matthias W. Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
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Dinter MC, Bickelmann C, Nickels RM, Menger MD, Laschke MW. Microvascular Fragment-Loaded Platelet-Rich Plasma Dressing Promotes Cutaneous Wound Healing. Adv Wound Care (New Rochelle) 2024; 13:336-349. [PMID: 38299944 DOI: 10.1089/wound.2023.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Abstract
Objective: Chronic wounds represent a considerable burden for the affected patients and the health care system. To overcome this problem, effective treatment strategies are urgently required. In this study, we tested a novel approach by combining platelet-rich plasma (PRP) and microvascular fragments (MVF) to create a prevascularized gel dressing. Approach: MVF were enzymatically isolated from the epididymal fat pads of transgenic green fluorescent protein (GFP)+ C57BL/6J donor mice. Subsequently, 5,000 MVF were suspended in 10 μL murine PRP as carrier and transferred into full-thickness skin wounds within dorsal skinfold chambers of C57BL/6J wild-type mice (PRP+MVF). Wound healing in comparison to empty wounds (control) and wounds filled with PRP alone was repeatedly analyzed throughout 14 days by means of stereomicroscopy, histology, and immunohistochemistry. Results: Planimetric assessment of the wound size over time revealed a significantly accelerated and improved healing of PRP+MVF-treated wounds when compared with PRP-treated and empty control wounds. These wounds also exhibited a significantly higher density of blood and lymph vessels, which originated from the GFP+ MVF isolates and effectively promoted granulation tissue formation inside the skin defects. Innovation: This study is the first to combine PRP and MVF for the improvement of wound healing. Conclusion: The combination of PRP and MVF represents a promising approach for the future treatment of wounds that do not heal spontaneously due to poor wound-healing conditions.
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Affiliation(s)
- Melina C Dinter
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Caroline Bickelmann
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Ruth M Nickels
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
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Li Z, Wang H, Li K, Wang W, Ma J, Liu Z, Li B, Li J, Han F, Xiao C. Combining "waste utilization" and "tissue to tissue" strategies to accelerate vascularization for bone repair. J Orthop Translat 2024; 47:132-143. [PMID: 39027342 PMCID: PMC11254838 DOI: 10.1016/j.jot.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/27/2024] [Accepted: 04/01/2024] [Indexed: 07/20/2024] Open
Abstract
Background A pivotal determinant for the success of tissue regeneration lies in the establishment of sufficient vasculature. Utilizing autologous tissue grafts from donors offers the dual advantage of mitigating the risk of disease transmission and circumventing the necessity for post-transplant immunosuppression, rendering it an exemplary vascularization strategy. Among the various potential autologous donors, adipose tissue emerges as a particularly auspicious source, being both widely available and compositionally rich. Notably, adipose-derived microvascular fragments (ad-MVFs) are a promising candidate for vascularization. ad-MVFs can be isolated from adipose tissue in a short period of time and show high vascularized capacity. In this study, we extracted ad-MVFs from adipose tissue and utilized their strong angiogenic ability to accelerate bone repair by promoting vascularization. Methods ad-MVFs were extracted from the rat epididymis using enzymatic hydrolysis. To preserve the integrity of the blood vessels, gelatin methacryloyl (GelMA) hydrogel was chosen as the carrier for ad-MVFs in three-dimensional (3D) culture. The ad-MVFs were cultured directly on the well plates for two-dimensional (2D) culture as a control. The morphology of ad-MVFs was observed under both 2D and 3D cultures, and the release levels of vascular endothelial growth factor (VEGF) and bone morphogenetic protein 2 (BMP-2) were assessed under both culture conditions. In vitro studies investigated the impact of ad-MVFs/GelMA hydrogel on the toxicity, osteoblastic activity, and mineralization of rat bone marrow mesenchymal stem cells (rBMSCs), along with the examination of osteogenic gene and protein expression. In vivo experiments involved implanting the ad-MVFs/GelMA hydrogel into critical-size skull defects in rats, and its osteogenic ability was evaluated through radiographic and histological methods. Results ad-MVFs were successfully isolated from rat adipose tissue. When cultured under 2D conditions, ad-MVFs exhibited a gradual disintegration and loss of their original vascular morphology. Compared with 2D culture, ad-MVFs can not only maintain the original vascular morphology, but also connect into a network in hydrogel under 3D culture condition. Moreover, the release levels of VEGF and BMP-2 were significantly higher than those in 2D culture. Moreover, the ad-MVFs/GelMA hydrogel exhibited superior osteoinductive activity. After implanting into the skull defect of rats, the ad-MVFs/GelMA hydrogel showed obvious effects for angiogenesis and osteogenesis. The translational potential of this article The utilization of autologous adipose tissue as a donor presents a more direct route toward clinical translation. Anticipated future clinical applications envision the transformation of discarded adipose tissue into a valuable resource for personalized tissue repair, thereby realizing a paradigm shift in the utilization of this abundant biological material.
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Affiliation(s)
- Zexi Li
- Department of Stomatology, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, Jiangsu, China
| | - Huan Wang
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Kexin Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Weishan Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang, China
| | - Jinjin Ma
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Zhao Liu
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
- National University of Singapore Suzhou Research Institute, Suzhou, People’s Republic of China
| | - Bin Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Jiaying Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Fengxuan Han
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Can Xiao
- Department of Stomatology, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, Jiangsu, China
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Lai Z, Niu X, Chen X, Lu F, Zhang Y, Yuan Y. Composite Microparticles of Fat Graft and GFR Matrigel Improved Volume Retention by Promoting Cell Migration and Vessel Regeneration. Aesthetic Plast Surg 2024; 48:1993-2001. [PMID: 38302709 DOI: 10.1007/s00266-022-03145-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 10/09/2022] [Indexed: 02/03/2024]
Abstract
BACKGROUND The retention volume of autologous fat grafts decreases after transplantation due to limited nutrition infiltration and insufficient blood supply. Structural fat grafts and the 3M (multipoint, multitunnel, and multilayer) injection technique have been considered to improve the survival of grafts; however, it is difficult for surgeons to practice in the clinic because grafts tend to gather into a cluster, especially in large volume fat grafting. Therefore, we hypothesize that prefabricated microparticle fat grafts (PFMG) may improve the retention rate. METHODS The C57BL/6 mouse fat particles were embedded in growth factor-reduced (GFR)-Matrigel to detect cell migration by immunofluorescence staining in vitro. PFMG was prepared by mixing mouse fat particles and GFR Matrigel in a 1:1 volume ratio and injected subcutaneously into C57BL/6 mice. Fat particles mixed with PBS in equal volume served as control group. The grafts were harvested at 1, 4, 8, and 12 weeks after sacrifice. The retention rate of grafts at each time point was measured, and the structural alterations were detected by SEM. Fat necrosis and blood vessel density were evaluated by histological analysis. RESULTS CD34+ cells are migrated from the PFMG and formed a tree-like tubular network in the in vitro study. The retention rate was higher in the PFMG group than in the control group at week 12 (38% vs. 30%, p < 0.05). After transplantation, the dissociated structure of fat particles was maintained in PFMG by SEM analysis. Histological analysis of PFMG confirmed less fat necrosis and more blood vessel density in the PFMG group at the early stage than in the control group. The GFR Matrigel was displaced by adipose tissue with time. CONCLUSIONS In this study, we developed a novel fat grafting method, PFMG that dispersed fat grafts and maintained the structure after transplantation. High volume retention volume of PFMG was achieved by promoting cell migration and vessel regeneration. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Zhuhao Lai
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, People's Republic of China
- The Third Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang Chinese Medical University, 219 Moganshan Road, 310005, Hangzhou, People's Republic of China
| | - Xingtang Niu
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Xihang Chen
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Feng Lu
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, People's Republic of China.
| | - Yuchen Zhang
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, People's Republic of China.
| | - Yi Yuan
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, People's Republic of China.
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Chen N, Li M, Yang J, Wang P, Song G, Wang H. Slow-sculpting graphene oxide/alginate gel loaded with platelet-rich plasma to promote wound healing in rats. Front Bioeng Biotechnol 2024; 12:1334087. [PMID: 38390356 PMCID: PMC10882075 DOI: 10.3389/fbioe.2024.1334087] [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: 11/06/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
Wounds, especially chronic wounds, have become an important problem that endangers human health. At present, there are many repair methods, and among them combines materials science and biology is one of the important repair methods. This study explored the preparation method, physicochemical properties, biological activity and safety of Platelet-Rich plasma (PRP)-loaded slow-sculpting graphene oxide (GO)/alginate gel, and applied it to acute full-thickness skin defect wounds in rats to observe its role in wound healing. The results show that the slow-sculpting GO/alginate gel has excellent plasticity and is suitable for a variety of irregularly shaped wounds. At the same time, its porous structure and water content can maintain the activity of platelets and their released growth factors in PRP, thereby promoting wound collagen synthesis and angiogenesis to accelerate wound healing. This indicates that the slow-sculpting GO/alginate gel is an excellent loading material for PRP, and the combination of the two may become one of the methods to promote wound repair.
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Affiliation(s)
- Ningjie Chen
- Shandong University, Jinan, Shandong, China
- Department of Burns and Plastic Surgery, Weihai Municipal Hospital, Weihai, China
| | - Mengjie Li
- Binzhou Medical University, Binzhou, Shandong, China
| | - Jincun Yang
- Department of Burns and Plastic Surgery, Weihai Municipal Hospital, Weihai, China
| | - Peng Wang
- Ministry of Scientific and Technological Innovation, Yantai Hi-tech Industrial Development Zone, Yantai, Shandong, China
| | - Guodong Song
- Shandong University, Jinan, Shandong, China
- Department of Burns and Orthopedic Surgery, Jinan Central Hospital, Jinan, Shandong, China
| | - Haitao Wang
- Department of Burns and Plastic Surgery, Weihai Municipal Hospital, Weihai, China
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Ren D, Chen J, Yu M, Yi C, Hu X, Deng J, Guo S. Emerging strategies for tissue engineering in vascularized composite allotransplantation: A review. J Tissue Eng 2024; 15:20417314241254508. [PMID: 38826796 PMCID: PMC11143860 DOI: 10.1177/20417314241254508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 04/28/2024] [Indexed: 06/04/2024] Open
Abstract
Vascularized composite allotransplantation (VCA), which can effectively improve quality of life, is a promising therapy for repair and reconstruction after face or body trauma. However, intractable issues are associated with VCA, such as the inevitable multiple immunogenicities of different tissues that cause severe rejection, the limited protocols available for clinical application, and the shortage of donor sources. The existing regimens used to extend the survival of patients receiving VCAs and suppress rejection are generally the lifelong application of immunosuppressive drugs, which have side effects. Consequently, studies aiming at tissue engineering methods for VCA have become a topic. In this review, we summarize the emerging therapeutic strategies for tissue engineering aimed to prolong the survival time of VCA grafts, delay the rejection and promote prevascularization and tissue regeneration to provide new ideas for future research on VCA treatment.
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Affiliation(s)
- Danyang Ren
- Department of Plastic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jun Chen
- Department of Plastic Surgery, Linhai Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Taizhou, Zhejiang, China
| | - Meirong Yu
- Center for Basic and Translational Research, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chenggang Yi
- Department of Plastic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xueqing Hu
- Department of Plastic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Junjie Deng
- Joint Centre of Translational Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, China
| | - Songxue Guo
- Department of Plastic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, Zhejiang, China
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Denoeud C, Luo G, Paquet J, Boisselier J, Wosinski P, Moya A, Diallo A, Larochette N, Marinesco S, Meiller A, Becquart P, Moussi H, Vilquin JT, Logeart-Avramoglou D, Gand A, Larreta-Garde V, Pauthe E, Potier E, Petite H. Enzyme-controlled, nutritive hydrogel for mesenchymal stromal cell survival and paracrine functions. Commun Biol 2023; 6:1266. [PMID: 38092861 PMCID: PMC10719273 DOI: 10.1038/s42003-023-05643-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 11/28/2023] [Indexed: 12/17/2023] Open
Abstract
Culture-adapted human mesenchymal stromal cells (hMSCs) are appealing candidates for regenerative medicine applications. However, these cells implanted in lesions as single cells or tissue constructs encounter an ischemic microenvironment responsible for their massive death post-transplantation, a major roadblock to successful clinical therapies. We hereby propose a paradigm shift for enhancing hMSC survival by designing, developing, and testing an enzyme-controlled, nutritive hydrogel with an inbuilt glucose delivery system for the first time. This hydrogel, composed of fibrin, starch (a polymer of glucose), and amyloglucosidase (AMG, an enzyme that hydrolyze glucose from starch), provides physiological glucose levels to fuel hMSCs via glycolysis. hMSCs loaded in these hydrogels and exposed to near anoxia (0.1% pO2) in vitro exhibited improved cell viability and angioinductive functions for up to 14 days. Most importantly, these nutritive hydrogels promoted hMSC viability and paracrine functions when implanted ectopically. Our findings suggest that local glucose delivery via the proposed nutritive hydrogel can be an efficient approach to improve hMSC-based therapeutic efficacy.
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Affiliation(s)
- Cyprien Denoeud
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Guotian Luo
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Joseph Paquet
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Julie Boisselier
- Biomaterial for Health Group, ERRMECe, University of Cergy-Pontoise, Cergy-Pontoise, France
| | | | - Adrien Moya
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Ahmad Diallo
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | | | | | - Anne Meiller
- Neuroscience Research Center, AniRA-NeuroChem Platform, Lyon, France
| | - Pierre Becquart
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Hilel Moussi
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Jean-Thomas Vilquin
- Sorbonne Université, INSERM, AIM, CNRS, Centre de Recherche en Myologie, Hôpital Pitié Salpêtrière, Paris, France
| | | | - Adeline Gand
- Biomaterial for Health Group, ERRMECe, University of Cergy-Pontoise, Cergy-Pontoise, France
| | | | - Emmanuel Pauthe
- Biomaterial for Health Group, ERRMECe, University of Cergy-Pontoise, Cergy-Pontoise, France
| | - Esther Potier
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France
| | - Hervé Petite
- University Paris Cité, CNRS, INSERM, ENVA, B3OA, Paris, France.
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11
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Limido E, Weinzierl A, Harder Y, Menger MD, Laschke MW. Fatter Is Better: Boosting the Vascularization of Adipose Tissue Grafts. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:605-622. [PMID: 37166386 DOI: 10.1089/ten.teb.2023.0069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Adipose tissue resorption after fat grafting is a major drawback in plastic and reconstructive surgery, which is primarily caused by the insufficient blood perfusion of the grafts in the initial phase after transplantation. To overcome this problem, several promising strategies to boost the vascularization and, thus, increase survival rates of fat grafts have been developed in preclinical studies in recent years. These include the angiogenic stimulation of the grafts by growth factors and botulinum neurotoxin A, biologically active gels, and cellular enrichment, as well as the physical and pharmacological stimulation of the transplantation site. To transfer these approaches into future clinical practice, it will be necessary to establish standardized procedures for their safe application in humans. If this succeeds, the surgical outcomes of fat grafting may be markedly improved, resulting in a significant reduction of the physical and psychological stress for the patients.
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Affiliation(s)
- Ettore Limido
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Andrea Weinzierl
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Yves Harder
- Department of Plastic, Reconstructive and Aesthetic Surgery, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale (EOC), Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
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12
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Bukharova TB, Nedorubova IA, Mokrousova VO, Meglei AY, Basina VP, Nedorubov AA, Vasilyev AV, Grigoriev TE, Zagoskin YD, Chvalun SN, Kutsev SI, Goldshtein DV. Adenovirus-Based Gene Therapy for Bone Regeneration: A Comparative Analysis of In Vivo and Ex Vivo BMP2 Gene Delivery. Cells 2023; 12:1762. [PMID: 37443796 PMCID: PMC10340163 DOI: 10.3390/cells12131762] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Adenovirus-mediated gene therapy is a promising tool in bone regenerative medicine. In this work, gene-activated matrices (GAMs) composed of (1) polylactide granules (PLA), which serve as a depot for genetic constructs or matrices for cell attachment, (2) a PRP-based fibrin clot, which is a source of growth factors and a binding gel, and (3) a BMP2 gene providing osteoinductive properties were studied. The study aims to compare the effectiveness of in vivo and ex vivo gene therapy based on adenoviral constructs with the BMP2 gene, PLA particles, and a fibrin clot for bone defect healing. GAMs with Ad-BMP2 and MSC(Ad-BMP2) show osteoinductive properties both in vitro and in vivo. However, MSCs incubated with GAMs containing transduced cells showed a more significant increase in osteopontin gene expression, protein production, Alpl activity, and matrix mineralization. Implantation of the studied matrices into critical-size calvarial defects after 56 days promotes the formation of young bone. The efficiency of neoosteogenesis and the volume fraction of newly formed bone tissue are higher with PLA/PRP-MSC(Ad-BMP2) implantation (33%) than PLA/PRP-Ad-BMP2 (28%). Thus, ex vivo adenoviral gene therapy with the BMP2 gene has proven to be a more effective approach than the in vivo delivery of gene constructs for bone regeneration.
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Affiliation(s)
- Tatiana Borisovna Bukharova
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
| | - Irina Alekseevna Nedorubova
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
| | - Viktoria Olegovna Mokrousova
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
| | - Anastasiia Yurevna Meglei
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
| | - Viktoriia Pavlovna Basina
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
| | - Andrey Anatolevich Nedorubov
- Institute of Translational Medicine and Biotechnology and E.V. Borovsky Institute of Dentistry, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia;
| | - Andrey Vyacheslavovich Vasilyev
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
- Institute of Translational Medicine and Biotechnology and E.V. Borovsky Institute of Dentistry, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia;
| | | | | | | | - Sergey Ivanovich Kutsev
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
| | - Dmitry Vadimovich Goldshtein
- Research Centre for Medical Genetics, 115478 Moscow, Russia; (I.A.N.); (V.O.M.); (A.Y.M.); (V.P.B.); (A.V.V.); (S.I.K.); (D.V.G.)
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13
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Comparison of the Effect of Different Conditioning Media on the Angiogenic Potential of Hypoxia Preconditioned Blood-Derived Secretomes: Towards Engineering Next-Generation Autologous Growth Factor Cocktails. Int J Mol Sci 2023; 24:ijms24065485. [PMID: 36982558 PMCID: PMC10049474 DOI: 10.3390/ijms24065485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
Hypoxia Preconditioned Plasma (HPP) and Serum (HPS) are regenerative blood-derived growth factor compositions that have been extensively examined for their angiogenic and lymphangiogenic activity towards wound healing and tissue repair. Optimization of these secretomes’ growth factor profile, through adjustments of the conditioning parameters, is a key step towards clinical application. In this study, the autologous liquid components (plasma/serum) of HPP and HPS were replaced with various conditioning media (NaCl, PBS, Glucose 5%, AIM V medium) and were analyzed in terms of key pro- (VEGF-A, EGF) and anti-angiogenic (TSP-1, PF-4) protein factors, as well as their ability to promote microvessel formation in vitro. We found that media substitution resulted in changes in the concentration of the aforementioned growth factors, and also influenced their ability to induce angiogenesis. While NaCl and PBS led to a lower concentration of all growth factors examined, and consequently an inferior tube formation response, replacement with Glucose 5% resulted in increased growth factor concentrations in anticoagulated blood-derived secretomes, likely due to stimulation of platelet factor release. Medium substitution with Glucose 5% and specialized peripheral blood cell-culture AIM V medium generated comparable tube formation to HPP and HPS controls. Altogether, our data suggest that medium replacement of plasma and serum may significantly influence the growth factor profile of hypoxia-preconditioned blood-derived secretomes and, therefore, their potential application as tools for promoting therapeutic angiogenesis.
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14
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Zhao M, Wang J, Zhang J, Huang J, Luo L, Yang Y, Shen K, Jiao T, Jia Y, Lian W, Li J, Wang Y, Lian Q, Hu D. Functionalizing multi-component bioink with platelet-rich plasma for customized in-situ bilayer bioprinting for wound healing. Mater Today Bio 2022; 16:100334. [PMID: 35799896 PMCID: PMC9254123 DOI: 10.1016/j.mtbio.2022.100334] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/01/2022] [Accepted: 06/16/2022] [Indexed: 11/06/2022] Open
Abstract
In-situ three-dimensional (3D) bioprinting has been emerging as a promising technology designed to rapidly seal cutaneous defects according to their contour. Improvements in the formulations of multi-component bioink are needed to support cytocompatible encapsulation and biological functions. Platelet-rich plasma (PRP), as a source of patient-specific autologous growth factors, exhibits capabilities in tissue repair and rejuvenation. This study aimed to prepare PRP-integrated alginate-gelatin (AG) composite hydrogel bioinks and evaluate the biological effects in vitro and in vivo. 3D bioprinted constructs embedded with dermal fibroblasts and epidermal stem cells were fabricated using extrusion strategy. The integration of PRP not only improved the cellular behavior of seeded cells, but regulate the tube formation of vascular endothelial cells and macrophage polarization in a paracrine manner, which obtained an optimal effect at an incorporation concentration of 5%. For in-situ bioprinting, PRP integration accelerated the high-quality wound closure, modulated the inflammation and initiated the angiogenesis compared with the AG bioink. In conclusion, we revealed the regenerative potential of PRP, readily available at the bedside, as an initial signaling provider in multi-component bioink development. Combined with in-situ printing technology, it is expected to accelerate the clinical translation of rapid individualized wound repair.
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15
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Co-transplantation of pancreatic islets and microvascular fragments effectively restores normoglycemia in diabetic mice. NPJ Regen Med 2022; 7:67. [PMCID: PMC9636251 DOI: 10.1038/s41536-022-00262-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
AbstractInsufficient revascularization of pancreatic islets is one of the major obstacles impairing the success of islet transplantation. To overcome this problem, we introduce in the present study a straightforward strategy to accelerate the engraftment of isolated islets. For this purpose, we co-transplanted 250 islets and 20,000 adipose tissue-derived microvascular fragments (MVF) from donor mice under the kidney capsule as well as 500 or 1000 islets with 40,000 MVF into the subcutaneous space of diabetic mice. We found that the co-transplantation of islets and MVF markedly accelerates the restoration of normoglycemia in diabetic recipients compared with the transplantation of islets alone. In fact, the transplantation of 250 islets with 20,000 MVF under the kidney capsule reversed diabetes in 88% of mice and the subcutaneous transplantation of 500 or 1000 islets with 40,000 MVF restored normoglycemia in 100% of mice. Moreover, diabetic mice receiving islets and MVF exhibited plasma insulin levels similar to nondiabetic control animals. Additional immunohistochemical analyses of the grafts revealed a significantly higher number of islet cells and microvessels in the co-transplantation groups. These findings demonstrate that the co-transplantation of islets and MVF is a promising strategy to improve the success rates of islet transplantation, which could be easily implemented into future clinical practice.
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16
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Jiang J, Kraneburg U, Dornseifer U, Schilling AF, Hadjipanayi E, Machens HG, Moog P. Hypoxia Preconditioned Serum (HPS)-Hydrogel Can Accelerate Dermal Wound Healing in Mice—An In Vivo Pilot Study. Biomedicines 2022; 10:biomedicines10010176. [PMID: 35052855 PMCID: PMC8773663 DOI: 10.3390/biomedicines10010176] [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: 11/13/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 02/04/2023] Open
Abstract
The ability to use the body’s resources to promote wound repair is increasingly becoming an interesting area of regenerative medicine research. Here, we tested the effect of topical application of blood-derived hypoxia preconditioned serum (HPS) on wound healing in a murine wound model. Alginate hydrogels loaded with two different HPS concentrations (10 and 40%) were applied topically on full-thickness wounds created on the back of immunocompromised mice. We achieved a significant dose-dependent wound area reduction after 5 days in HPS-treated groups compared with no treatment (NT). On average, both HPS-10% and HPS-40% -treated wounds healed 1.4 days faster than NT. Healed tissue samples were investigated on post-operative day 15 (POD 15) by immunohistology and showed an increase in lymphatic vessels (LYVE-1) up to 45% with HPS-40% application, while at this stage, vascularization (CD31) was comparable in the HPS-treated and NT groups. Furthermore, the expression of proliferation marker Ki67 was greater on POD 15 in the NT-group compared to HPS-treated groups, in accordance with the earlier completion of wound healing observed in the latter. Collagen deposition was similar in all groups, indicating lack of scar tissue hypertrophy as a result of HPS-hydrogel treatment. These findings show that topical HPS application is safe and can accelerate dermal wound healing in mice.
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Affiliation(s)
- Jun Jiang
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675 Munich, Germany; (J.J.); (U.K.); (E.H.)
| | - Ursula Kraneburg
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675 Munich, Germany; (J.J.); (U.K.); (E.H.)
| | - Ulf Dornseifer
- Department of Plastic, Reconstructive and Aesthetic Surgery, Isar Klinikum, D-80331 Munich, Germany;
| | - Arndt F. Schilling
- Department of Trauma Surgery, Orthopedics and Plastic Surgery, Universitätsmedizin Göttingen, D-37075 Gottingen, Germany;
| | - Ektoras Hadjipanayi
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675 Munich, Germany; (J.J.); (U.K.); (E.H.)
| | - Hans-Günther Machens
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675 Munich, Germany; (J.J.); (U.K.); (E.H.)
- Correspondence: (H.-G.M.); (P.M.)
| | - Philipp Moog
- Experimental Plastic Surgery, Clinic for Plastic, Reconstructive and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675 Munich, Germany; (J.J.); (U.K.); (E.H.)
- Correspondence: (H.-G.M.); (P.M.)
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17
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Acosta FM, Stojkova K, Zhang J, Garcia Huitron EI, Jiang JX, Rathbone CR, Brey EM. Engineering Functional Vascularized Beige Adipose Tissue from Microvascular Fragments of Models of Healthy and Type II Diabetes Conditions. J Tissue Eng 2022; 13:20417314221109337. [PMID: 35782994 PMCID: PMC9248044 DOI: 10.1177/20417314221109337] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 06/08/2022] [Indexed: 01/10/2023] Open
Abstract
Engineered beige adipose tissues could be used for screening therapeutic strategies or as a direct treatment for obesity and metabolic disease. Microvascular fragments are vessel structures that can be directly isolated from adipose tissue and may contain cells capable of differentiation into thermogenic, or beige, adipocytes. In this study, culture conditions were investigated to engineer three-dimensional, vascularized functional beige adipose tissue using microvascular fragments isolated from both healthy animals and a model of type II diabetes (T2D). Vascularized beige adipose tissues were engineered and exhibited increased expression of beige adipose markers, enhanced function, and improved cellular respiration. While microvascular fragments isolated from both lean and diabetic models were able to generate functional tissues, differences were observed in regard to vessel assembly and tissue function. This study introduces an approach that could be employed to engineer vascularized beige adipose tissues from a single, potentially autologous source of cells.
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Affiliation(s)
- Francisca M. Acosta
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
- UTSA-UTHSCSA Joint Graduate Program in
Biomedical Engineering, San Antonio, TX, USA
- Department of Biochemistry and
Structural Biology, University of Texas Health Science Center, San Antonio, TX,
USA
| | - Katerina Stojkova
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
| | - Jingruo Zhang
- Department of Biochemistry and
Structural Biology, University of Texas Health Science Center, San Antonio, TX,
USA
| | - Eric Ivan Garcia Huitron
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
| | - Jean X. Jiang
- Department of Biochemistry and
Structural Biology, University of Texas Health Science Center, San Antonio, TX,
USA
| | - Christopher R. Rathbone
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
- UTSA-UTHSCSA Joint Graduate Program in
Biomedical Engineering, San Antonio, TX, USA
| | - Eric M. Brey
- Department of Biomedical Engineering
and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX,
USA
- UTSA-UTHSCSA Joint Graduate Program in
Biomedical Engineering, San Antonio, TX, USA
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