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Baglioni EA, Perego F, Paolin E, Abate A, Pusceddu T, Zavan B, Bocchiotti MA. Efficacy of autologous micrografts technology: a promising approach for chronic wound healing and tissue regeneration-a pilot study. Front Med (Lausanne) 2024; 11:1417920. [PMID: 39131083 PMCID: PMC11310043 DOI: 10.3389/fmed.2024.1417920] [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: 04/15/2024] [Accepted: 07/15/2024] [Indexed: 08/13/2024] Open
Abstract
Introduction This study explores the efficacy of Autologous Micrografts Technology (AMG) in treating chronic wounds refractory to traditional therapies. Methods AMGs, derived from adipose tissue or dermis using a mechanical fragmentation process, were applied to patients with post-surgical dehiscence. A comprehensive evaluation of wound healing outcomes, including surface area reduction and complete healing, was conducted over a 90-day follow-up period. Additionally, the study investigated the cellular antioxidant activity of AMG solutions and characterized the exosomes obtained through mechanical disaggregation. Results Results indicate significant improvements (p < 0.05) in wound healing, with 91.66% of patients showing at least a 50% reduction in lesion size and 75% achieving complete healing by day 90. Notably, AMG technology demonstrated immediate efficacy with fat-only application, while combined dermis and fat micrografts showed longer-term benefits, particularly in chronic wounds. The study also elucidated the mechanism of action of AMGs, highlighting their role in enhancing cellular antioxidant activity and exosome-mediated tissue regeneration. Discussion Overall, these findings underscore the promising potential of AMG technology as a versatile and effective treatment option for chronic wounds, warranting further investigation into its mechanisms and clinical applications.
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Affiliation(s)
| | - Franco Perego
- Reconstructive and Aesthetic Plastic Surgery, University of Padua, Padua, Italy
| | - Elisa Paolin
- Human Anatomy Unit, Department of Public Health, Experimental, and Forensic Medicine, University of Pavia, Pavia, Italy
- Laboratory SHRO Italia Foundation ETS, Turin, Italy
| | - Alberto Abate
- Department of Cardiology, IRCCS San Martino Hospital, University of Genoa, Genoa, Italy
| | - Tommaso Pusceddu
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Barbara Zavan
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Maria Alessandra Bocchiotti
- Department of Plastic Surgeon Gynecological and Obstetrician, City of Health and Science of Turin, Turin, Italy
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Baba K, Niimi Y, Sugimoto T, Takeda A. Micrografting strategy for abdominal refractory skin ulcer associated with surgical site infection. Asian J Surg 2024:S1015-9584(24)01351-4. [PMID: 38987138 DOI: 10.1016/j.asjsur.2024.06.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024] Open
Affiliation(s)
- Kyoko Baba
- Department of Plastic Surgery, Kitasato University Medical Center, Japan; Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Japan.
| | - Yuta Niimi
- Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Japan
| | - Takayuki Sugimoto
- Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Japan
| | - Akira Takeda
- Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Japan
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Zhang HM, Yang ML, Xi JZ, Yang GY, Wu QN. Mesenchymal stem cells-based drug delivery systems for diabetic foot ulcer: A review. World J Diabetes 2023; 14:1585-1602. [DOI: 10.4239/wjd.v14.i11.1585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 07/16/2023] [Accepted: 09/11/2023] [Indexed: 11/14/2023] Open
Abstract
The complication of diabetes, which is known as diabetic foot ulcer (DFU), is a significant concern due to its association with high rates of disability and mortality. It not only severely affects patients’ quality of life, but also imposes a substantial burden on the healthcare system. In spite of efforts made in clinical practice, treating DFU remains a challenging task. While mesenchymal stem cell (MSC) therapy has been extensively studied in treating DFU, the current efficacy of DFU healing using this method is still inadequate. However, in recent years, several MSCs-based drug delivery systems have emerged, which have shown to increase the efficacy of MSC therapy, especially in treating DFU. This review summarized the application of diverse MSCs-based drug delivery systems in treating DFU and suggested potential prospects for the future research.
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Affiliation(s)
- Hong-Min Zhang
- Department of Endocrinology, People’s Hospital of Chongqing Liangjiang New Area, Chongqing 400030, China
| | - Meng-Liu Yang
- Department of Endocrinology, The Second Affiliated Hospital of The Chongqing Medical University, Chongqing 400030, China
| | - Jia-Zhuang Xi
- Department of Endocrinology, Dazu Hospital of Chongqing Medical University, The People’s Hospital of Dazu, Chongqing 406230, China
| | - Gang-Yi Yang
- Department of Endocrinology, The Second Affiliated Hospital of The Chongqing Medical University, Chongqing 400030, China
| | - Qi-Nan Wu
- Department of Endocrinology, Dazu Hospital of Chongqing Medical University, The People’s Hospital of Dazu, Chongqing 406230, China
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di Summa PG, Di Marzio N, Jafari P, Jaconi ME, Nesic D. FastSkin ® Concept: A Novel Treatment for Complex Acute and Chronic Wound Management. J Clin Med 2023; 12:6564. [PMID: 37892702 PMCID: PMC10607178 DOI: 10.3390/jcm12206564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/26/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Successful treatments for acute and chronic skin wounds remain challenging. The goal of this proof-of-concept study was to assess the technical feasibility and safety of a novel wound treatment solution, FastSkin®, in a pig model. FastSkin® was prepared from skin micrografts patterned in blood using acoustic waves. Upon coagulation, the graft was transferred on a silicone sheet and placed on wounds. Six full-thickness wounds were created at the back of two pigs and treated with either FastSkin®, split-thickness skin graft (positive control), a gauze coverage (negative control, NC1), or blood patterned without micrografts (negative control, NC2). Silicone sheets were removed after 7, 14, and 21 days. Wound healing was monitored for six weeks and evaluated macroscopically for re-epithelialization and morphometrically for residual wound area and wound contraction. Tissue regeneration was assessed with histology after six weeks. Re-epithelialization was faster in wounds covered with FastSkin® treatments compared to NC2 and in NC2 compared to NC1. Importantly, an enhanced collagen organization was observed in FastSkin® in contrast to NC treatments. In summary, two clinically approved skin wound treatments, namely micrografting and blood clot graft, were successfully merged with sound-induced patterning of micrografts to produce an autologous, simple, and biologically active wound treatment concept.
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Affiliation(s)
- Pietro G. di Summa
- Department of Plastic and Hand Surgery, University Hospital of Lausanne (CHUV), University of Lausanne (UNIL), 1015 Lausanne, Switzerland;
| | - Nicola Di Marzio
- AO Research Institute Davos, 7270 Davos, Switzerland;
- Department of Health Sciences, Università del Piemonte Orientale (UPO), 28100 Novara, Italy
| | - Paris Jafari
- Center for Integrative Genomics, University of Lausanne, 1015 Lausanne, Switzerland;
| | - Marisa E. Jaconi
- Department of Basic Neurosciences, University of Geneva, 1211 Geneva, Switzerland;
| | - Dobrila Nesic
- Division of Fixed Prosthodontics and Biomaterials, University Clinic of Dental Medicine, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland
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Chen Z, Cheng Q, Wang L, Mo Y, Li K, Mo J. Optical coherence tomography for in vivo longitudinal monitoring of artificial dermal scaffold. Lasers Surg Med 2023; 55:316-326. [PMID: 36806261 DOI: 10.1002/lsm.23645] [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: 08/08/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/21/2023]
Abstract
OBJECTIVES Artificial dermal scaffold (ADS) has undergone rapid development and been increasingly used for treating skin wound in clinics due to its good biocompatibility, controllable degradation, and low risk of disease infection. To obtain good treatment efficacy, ADS needs to be monitored longitudinally during the treatment process. For example, scaffold-tissue fit, cell in-growth, vascular regeneration, and scaffold degradation are the key properties to be inspected. However, to date, there are no effective, real-time, and noninvasive techniques to meet the requirement of the scaffold monitoring above. MATERIALS AND METHODS In this study, we propose to use optical coherence tomography (OCT) to monitor ADS in vivo through three-dimensional imaging. A swept source OCT system with a handheld probe was developed for in vivo skin imaging. Moreover, a cell in-growth, vascular regeneration, and scaffold degradation rate (IRDR) was defined with the volume reduction rate of the scaffold's collagen sponge layer. To measure the IRDR, a semiautomatic image segmentation algorithm was designed based on U-Net to segment the collagen sponge layer of the scaffold from OCT images. RESULTS The results show that the scaffold-tissue fit can be clearly visualized under OCT imaging. The IRDR can be computed based on the volume of the segmented collagen sponge layer. It is observed that the IRDR appeared to a linear function of the time and in addition, the IRDR varied among different skin parts. CONCLUSION Overall, it can be concluded that OCT has a good potential to monitor ADS in vivo. This can help guide the clinicians to control the treatment with ADS to improve the therapy.
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Affiliation(s)
- Ziye Chen
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Qiong Cheng
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lingyun Wang
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Yunfeng Mo
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
| | - Ke Li
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianhua Mo
- Department of Electronic Information, Engineering School of Electronics and Information Engineering, Soochow University, Suzhou, China
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Aliberti F, Paolin E, Benedetti L, Cusella G, Ceccarelli G. 3D bioprinting and Rigenera® micrografting technology: A possible countermeasure for wound healing in spaceflight. Front Bioeng Biotechnol 2022; 10:937709. [PMID: 36110324 PMCID: PMC9468613 DOI: 10.3389/fbioe.2022.937709] [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: 05/06/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Plant and animal life forms have progressively developed mechanisms for perceiving and responding to gravity on Earth, where homeostatic mechanisms require feedback. Lack of gravity, as in the International Space Station (ISS), induces acute intra-generational changes in the quality of life. These include reduced bone calcium levels and muscle tone, provoking skin deterioration. All these problems reduce the work efficiency and quality of life of humans not only during exposure to microgravity (µG) but also after returning to Earth. This article discusses forthcoming experiments required under gravity and µG conditions to ensure effective and successful medical treatments for astronauts during long-term space missions, where healthcare is difficult and not guaranteed.
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Affiliation(s)
- Flaminia Aliberti
- Department of Public Health, Experimental and Forensic Medicine, Human Anatomy Unit, University of Pavia, Pavia, Italy
- Fondazione IRCCS Policlinico San Matteo, Center for Inherited Cardiovascular Diseases, Transplant Research Area, Pavia, Italy
| | - Elisa Paolin
- Department of Public Health, Experimental and Forensic Medicine, Human Anatomy Unit, University of Pavia, Pavia, Italy
- Human Brain Wave, Turin, Italy
| | - Laura Benedetti
- Department of Public Health, Experimental and Forensic Medicine, Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Gabriella Cusella
- Department of Public Health, Experimental and Forensic Medicine, Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Gabriele Ceccarelli
- Department of Public Health, Experimental and Forensic Medicine, Human Anatomy Unit, University of Pavia, Pavia, Italy
- *Correspondence: Gabriele Ceccarelli,
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