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Welc N, Ważniewicz S, Anioła A, Ratajska P, Wilawer M, Jałowska M, Żaba R. Chemical Scalp Burn after Hair Coloring-Case Report with Literature Review. J Clin Med 2024; 13:3542. [PMID: 38930071 PMCID: PMC11204684 DOI: 10.3390/jcm13123542] [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: 05/17/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Hair dyeing is widely performed around the world. Chemical and thermal burns can result from the components present in brightening and coloring products, as well as the application process. We present a case of a chemical burn after applying hair dye and review the literature on similar cases, the composition of hair dyes, their mechanism of action, and the process of burns. The patient was a 17-year-old girl, who presented to the Dermatology Clinic with a 13 × 10 cm ulcer on the scalp after hair dyeing in a hairdressing salon. General and local treatment was applied, with particular emphasis on specialized dressings. The ulcer site was replaced by an area of scarring after 11 months of treatment. Based on the presented case and the review of the literature, we conclude that hair dye treatments warrant careful attention for potential scalp complications. The diagnostic and therapeutic approach demands a multidisciplinary effort, with ongoing patient-doctor cooperation throughout the treatment, which may complicate and span several months.
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Affiliation(s)
- Natalia Welc
- Department of Dermatology, Poznan University of Medical Sciences, 61-701 Ponzan, Poland (M.J.); (R.Ż.)
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Ben-Shaanan TL, Knöpper K, Duan L, Liu R, Taglinao H, Xu Y, An J, Plikus MV, Cyster JG. Dermal TRPV1 innervations engage a macrophage- and fibroblast-containing pathway to activate hair growth in mice. Dev Cell 2024:S1534-5807(24)00337-X. [PMID: 38851191 DOI: 10.1016/j.devcel.2024.05.019] [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: 10/03/2023] [Revised: 02/25/2024] [Accepted: 05/15/2024] [Indexed: 06/10/2024]
Abstract
Pain, detected by nociceptors, is an integral part of injury, yet whether and how it can impact tissue physiology and recovery remain understudied. Here, we applied chemogenetics in mice to locally activate dermal TRPV1 innervations in naive skin and found that it triggered new regenerative cycling by dormant hair follicles (HFs). This was preceded by rapid apoptosis of dermal macrophages, mediated by the neuropeptide calcitonin gene-related peptide (CGRP). TRPV1 activation also triggered a macrophage-dependent induction of osteopontin (Spp1)-expressing dermal fibroblasts. The neuropeptide CGRP and the extracellular matrix protein Spp1 were required for the nociceptor-triggered hair growth. Finally, we showed that epidermal abrasion injury induced Spp1-expressing dermal fibroblasts and hair growth via a TRPV1 neuron and CGRP-dependent mechanism. Collectively, these data demonstrated a role for TRPV1 nociceptors in orchestrating a macrophage and fibroblast-supported mechanism to promote hair growth and enabling the efficient restoration of this mechano- and thermo-protective barrier after wounding.
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Affiliation(s)
- Tamar L Ben-Shaanan
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA.
| | - Konrad Knöpper
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Lihui Duan
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Ruiqi Liu
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
| | - Hanna Taglinao
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Ying Xu
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Jinping An
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
| | - Jason G Cyster
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA.
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3
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Byun H, Han Y, Kim E, Jun I, Lee J, Jeong H, Huh SJ, Joo J, Shin SR, Shin H. Cell-homing and immunomodulatory composite hydrogels for effective wound healing with neovascularization. Bioact Mater 2024; 36:185-202. [PMID: 38463552 PMCID: PMC10924181 DOI: 10.1016/j.bioactmat.2024.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/08/2024] [Accepted: 02/23/2024] [Indexed: 03/12/2024] Open
Abstract
Wound healing in cases of excessive inflammation poses a significant challenge due to compromised neovascularization. Here, we propose a multi-functional composite hydrogel engineered to overcome such conditions through recruitment and activation of macrophages with adapted degradation of the hydrogel. The composite hydrogel (G-TSrP) is created by combining gelatin methacryloyl (GelMA) and nanoparticles (TSrP) composed of tannic acid (TA) and Sr2+. These nanoparticles are prepared using a one-step mineralization process assisted by metal-phenolic network formation. G-TSrP exhibits the ability to eliminate reactive oxygen species and direct polarization of macrophages toward M2 phenotype. It has been observed that the liberation of TA and Sr2+ from G-TSrP actively facilitate the recruitment and up-regulation of the expression of extracellular matrix remodeling genes of macrophages, and thereby, coordinate in vivo adapted degradation of the G-TSrP. Most significantly, G-TSrP accelerates angiogenesis despite the TA's inhibitory properties, which are counteracted by the released Sr2+. Moreover, G-TSrP enhances wound closure under inflammation and promotes normal tissue formation with strong vessel growth. Genetic analysis confirms macrophage-mediated wound healing by the composite hydrogel. Collectively, these findings pave the way for the development of biomaterials that promote wound healing by creating regenerative environment.
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Affiliation(s)
- Hayeon Byun
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Cambridge, MA 02139, USA
| | - Yujin Han
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Eunhyung Kim
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Indong Jun
- Environmental Safety Group, Korea Institute of Science & Technology Europe (KIST-EUROPE), Saarbrücken 66123, Germany
| | - Jinkyu Lee
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Hyewoo Jeong
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Seung Jae Huh
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Jinmyoung Joo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Cambridge, MA 02139, USA
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
- Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
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Nuutila K, Mistry R, Broomhead M, Eriksson E. Split-Thickness Skin and Dermal Pixel Grafts Can Be Expanded up to 500 Times to Re-Epithelialize a Full-Thickness Burn Wound. Adv Wound Care (New Rochelle) 2024; 13:176-186. [PMID: 37905500 DOI: 10.1089/wound.2023.0020] [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: 11/02/2023] Open
Abstract
Objective: Autologous skin transplantation is limited by donor site availability for patients with extensive burns. The objective of this study was to demonstrate the feasibility and efficacy of split-thickness skin (STS) and dermal pixel grafts (PG) in the treatment of burns. Approach: The study was divided into three arms of validation, expansion, and combination that all followed the same study design. Sixteen deep partial-thickness burns were created on the dorsum of anesthetized pigs. Three days postinjury the burns were debrided and grafted with STS and dermal PGs. The PGs were prepared by harvesting two skin grafts (split-thickness skin graft [STSG] and dermal graft) from the same donor site going down in depth. The grafts were minced to 0.3 × 0.3 × 0.3 mm PGs and suspended in a small volume of hydrogel. Healing was monitored for 6, 10, 14, or 28 days. In the validation study the PGs at 1:2 expansion ratio were transplanted and compared with STSG and untreated controls. The expansion study investigated the maximum expansion potential of the PGs and the combination of the benefits of transplanting STS and dermal PGs together. Results: The validation study showed that when STS and dermal PGs were transplanted in a 1:2 ratio they fully re-epithelialized the wounds in 14 days. The expansion study demonstrated that using expansion ratios up to 1:500 the wounds were re-epithelialized by day 28. The combination study showed that there was no additional benefit to use STS and dermal PGs together. Innovation: Pixel grafting provides expansion ratios greater than conventional STSG. The possibility to harvest both STS and dermal PGs from the same donor area further reduces the need for healthy skin. Conclusion: STSG and dermal grafts can be minced to PGs with preserved viability and expanded up to 500 times to re-epithelialize a wound.
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Affiliation(s)
- Kristo Nuutila
- Department of Combat Wound Care, United States Army Institute of Surgical Research, Fort Sam Houston, Texas, USA
| | - Riyam Mistry
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | | | - Elof Eriksson
- Applied Tissue Technologies LLC, Hingham, Massachusetts, USA
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Barbachowska A, Korzeniowski T, Surowiecka A, Strużyna J. Alloplastic Epidermal Skin Substitute in the Treatment of Burns. Life (Basel) 2023; 14:43. [PMID: 38255658 PMCID: PMC10821452 DOI: 10.3390/life14010043] [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: 10/25/2023] [Revised: 12/23/2023] [Accepted: 12/25/2023] [Indexed: 01/24/2024] Open
Abstract
The goal of burn wound treatment is to ensure rapid epithelialization in superficial burns and the process of rebuilding the lost skin in deep burns. Topical treatment plays an important role. One of the innovations in the field of synthetic materials dedicated to the treatment of burns is epidermal skin substitutes. Since the introduction of Suprathel®, the alloplastic epidermal substitute, many research results have been published in which the authors investigated the properties and use of this substitute in the treatment of wounds of various origins, including burn wounds. Burn wounds cause both physical and psychological discomfort, which is why ensuring comfort during treatment is extremely important. Alloplastic epidermal substitute, due to its biodegradability, plasticity, no need to remove the dressing until healing, and the associated reduction in pain, is an alternative for treating burns, especially in children.
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Affiliation(s)
- Aleksandra Barbachowska
- East Center of Burns Treatment and Reconstructive Surgery, 21-010 Lęczna, Poland; (A.B.); (A.S.); (J.S.)
- Department of Plastic, Reconstructive Surgery and Burn Treatment, Medical University of Lublin, 20-093 Lublin, Poland
| | - Tomasz Korzeniowski
- East Center of Burns Treatment and Reconstructive Surgery, 21-010 Lęczna, Poland; (A.B.); (A.S.); (J.S.)
- Department of Plastic, Reconstructive Surgery and Burn Treatment, Medical University of Lublin, 20-093 Lublin, Poland
| | - Agnieszka Surowiecka
- East Center of Burns Treatment and Reconstructive Surgery, 21-010 Lęczna, Poland; (A.B.); (A.S.); (J.S.)
- Department of Plastic and Reconstructive Surgery and Microsurgery, Medical University of Lublin, 20-093 Lublin, Poland
| | - Jerzy Strużyna
- East Center of Burns Treatment and Reconstructive Surgery, 21-010 Lęczna, Poland; (A.B.); (A.S.); (J.S.)
- Department of Plastic, Reconstructive Surgery and Burn Treatment, Medical University of Lublin, 20-093 Lublin, Poland
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Motter Catarino C, Cigaran Schuck D, Dechiario L, Karande P. Incorporation of hair follicles in 3D bioprinted models of human skin. SCIENCE ADVANCES 2023; 9:eadg0297. [PMID: 37831765 PMCID: PMC10575578 DOI: 10.1126/sciadv.adg0297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 09/12/2023] [Indexed: 10/15/2023]
Abstract
Current approaches fail to adequately introduce complex adnexal structures such as hair follicles within tissue engineered models of skin. Here, we report on the use of 3D bioprinting to incorporate these structures in engineered skin tissues. Spheroids, induced by printing dermal papilla cells (DPCs) and human umbilical vein cells (HUVECs), were precisely printed within a pregelled dermal layer containing fibroblasts. The resulting tissue developed hair follicle-like structures upon maturation, supported by migration of keratinocytes and melanocytes, and their morphology and composition grossly mimicked that of the native skin tissue. Reconstructed skin models with increased complexity that better mimic native adnexal structures can have a substantial impact on regenerative medicine as grafts and efficacy models to test the safety of chemical compounds.
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Affiliation(s)
- Carolina Motter Catarino
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Grupo Boticário, Curitiba, Paraná, Brazil
| | | | - Lexi Dechiario
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Pankaj Karande
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
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Davis M, Hom D. Current and Future Developments in Wound Healing. Facial Plast Surg 2023; 39:477-488. [PMID: 37308128 PMCID: PMC11121504 DOI: 10.1055/s-0043-1769936] [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] [Indexed: 06/14/2023] Open
Abstract
Poor wound healing on the face and neck can lead to significant morbidity and dissatisfaction in facial plastic surgery. With current advances in wound healing management and commercially available biologic and tissue-engineered products, there are several options available to optimize acute wound healing and treat delayed or chronic wounds. This article summarizes some of the key principals and recent developments in wound healing research in addition to potential future advancements in the field of soft tissue wound healing.
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Affiliation(s)
- Morgan Davis
- Department of Otolaryngology, Head and Neck Surgery, University of California, San Diego, La Jolla, California
| | - David Hom
- Department of Otolaryngology, Head and Neck Surgery, University of California, San Diego, La Jolla, California
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Grzelak EM, Elshan NGRD, Shao S, Bulos ML, Joseph SB, Chatterjee AK, Chen JJ, Nguyên-Trân V, Schultz PG, Bollong MJ. Pharmacological YAP activation promotes regenerative repair of cutaneous wounds. Proc Natl Acad Sci U S A 2023; 120:e2305085120. [PMID: 37399395 PMCID: PMC10334740 DOI: 10.1073/pnas.2305085120] [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: 04/02/2023] [Accepted: 05/26/2023] [Indexed: 07/05/2023] Open
Abstract
Chronic cutaneous wounds remain a persistent unmet medical need that decreases life expectancy and quality of life. Here, we report that topical application of PY-60, a small-molecule activator of the transcriptional coactivator Yes-associated protein (YAP), promotes regenerative repair of cutaneous wounds in pig and human models. Pharmacological YAP activation enacts a reversible pro-proliferative transcriptional program in keratinocytes and dermal cells that results in accelerated re-epithelization and regranulation of the wound bed. These results demonstrate that transient topical administration of a YAP activating agent may represent a generalizable therapeutic approach to treating cutaneous wounds.
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Affiliation(s)
- Edyta M. Grzelak
- Department of Chemistry, The Scripps Research Institute, San Diego, CA92037
| | | | - Sida Shao
- Department of Chemistry, The Scripps Research Institute, San Diego, CA92037
| | - Maya L. Bulos
- Department of Chemistry, The Scripps Research Institute, San Diego, CA92037
| | - Sean B. Joseph
- Calibr, A Division of Scripps Research, San Diego, CA92037
| | | | | | | | - Peter G. Schultz
- Department of Chemistry, The Scripps Research Institute, San Diego, CA92037
- Calibr, A Division of Scripps Research, San Diego, CA92037
| | - Michael J. Bollong
- Department of Chemistry, The Scripps Research Institute, San Diego, CA92037
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Du L, Gan Y, Zheng B, Huang J, Hu Z, Miao Y. An optimized force-triggered density gradient sedimentation method for isolation of pelage follicle dermal papilla cells from neonatal mouse skin. Stem Cell Res Ther 2023; 14:140. [PMID: 37226186 PMCID: PMC10210473 DOI: 10.1186/s13287-023-03343-2] [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: 05/16/2022] [Accepted: 04/12/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND The dermal papilla cells are a specialized population of mesenchymal cells located at the base of the hair follicle (HF), which possess the capacity to regulate HF morphogenesis and regeneration. However, lack of cell-type specific surface markers restricts the isolation of DP cells and application for tissue engineering purposes. METHODS We describe a novel force-triggered density gradient sedimentation (FDGS) method to efficiently obtain purified follicular DP-spheres cells from neonatal mouse back skin, utilizing only centrifugation and optimized density gradients. RESULTS Expression of characteristic DP cell markers, alkaline phosphatase, β-catenin, versican, and neural cell adhesion molecules, were confirmed by immunofluorescence. Further, the patch assays demonstrated that DP cells maintained their hair regenerative capacity in vivo. Compared with current methods, including microdissection and fluorescence-activated cell sorting, the FDGS technique is simpler and more efficient for isolating DP cells from neonatal mouse skin. CONCLUSIONS The FDGS method will improve the research potential of neonatal mouse pelage-derived DP cells for tissue engineering purposes.
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Affiliation(s)
- Lijuan Du
- Department of Plastic and Aesthetic Surgery, Nan Fang Hospital of Southern Medical University, 1838 North Guangzhou AV, Guangzhou, Guangdong, China
| | - Yuyang Gan
- Department of Plastic and Aesthetic Surgery, Nan Fang Hospital of Southern Medical University, 1838 North Guangzhou AV, Guangzhou, Guangdong, China
| | - Bowen Zheng
- Department of Plastic and Aesthetic Surgery, Nan Fang Hospital of Southern Medical University, 1838 North Guangzhou AV, Guangzhou, Guangdong, China
| | - Junfei Huang
- Department of Plastic and Aesthetic Surgery, Nan Fang Hospital of Southern Medical University, 1838 North Guangzhou AV, Guangzhou, Guangdong, China
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nan Fang Hospital of Southern Medical University, 1838 North Guangzhou AV, Guangzhou, Guangdong, China.
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nan Fang Hospital of Southern Medical University, 1838 North Guangzhou AV, Guangzhou, Guangdong, China.
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Ezure T. Vellus hair condition is related to dermal elasticity and facial sagging severity. Skin Res Technol 2023; 29:e13287. [PMID: 36823501 PMCID: PMC10155787 DOI: 10.1111/srt.13287] [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] [Received: 01/11/2023] [Accepted: 01/20/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND Sagging of facial skin is a critical factor associated with an aged appearance. However, the mechanism of sagging has not been fully elucidated. The facial skin contains vellus hair (fine hair), but the contribution of vellus hair to skin condition and facial aging has yet to be studied. AIM We aimed to clarify the influence of vellus hair on the physical properties and sagging severity of facial skin by establishing an evaluation system for vellus hair condition. METHOD Photographs were taken to assess the vellus hair condition in the cheek area in 30 middle-aged female volunteers. Skin elasticity was measured with a cutometer and sagging severity was evaluated by using previously established photograph-based grading criteria. RESULTS Facial skin vellus hairs were divided into three types: fine, thick, and normal thickness. Based on this observation, we established a 6-grade photograph-based grading system based on the dominant type of vellus hair in the target area and used it to evaluate vellus hair condition at the cheek. We found that vellus hair condition is significantly positively related to skin elasticity parameters Ua/Uf (representing overall elasticity including creep and creep recovery), Ur/Ue (representing net elasticity without viscoelastic creep), and Ur/Uf (ratio of elastic recovery to total deformation). Further, vellus hair condition was significantly negatively correlated to sagging severity. CONCLUSION Our results suggest that vellus hair condition positively contributes to the skin's physical properties, and consequently deterioration of the vellus hair condition promotes an aged facial appearance.
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Affiliation(s)
- Tomonobu Ezure
- Shiseido Co., Ltd., MIRAI Technology InstituteYokohamaJapan
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Kang MS, Jang J, Jo HJ, Kim WH, Kim B, Chun HJ, Lim D, Han DW. Advances and Innovations of 3D Bioprinting Skin. Biomolecules 2022; 13:biom13010055. [PMID: 36671440 PMCID: PMC9856167 DOI: 10.3390/biom13010055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Three-dimensional (3D) bioprinted skin equivalents are highlighted as the new gold standard for alternative models to animal testing, as well as full-thickness wound healing. In this review, we focus on the advances and innovations of 3D bioprinting skin for skin regeneration, within the last five years. After a brief introduction to skin anatomy, 3D bioprinting methods and the remarkable features of recent studies are classified as advances in materials, structures, and functions. We will discuss several ways to improve the clinical potential of 3D bioprinted skin, with state-of-the-art printing technology and novel biomaterials. After the breakthrough in the bottleneck of the current studies, highly developed skin can be fabricated, comprising stratified epidermis, dermis, and hypodermis with blood vessels, nerves, muscles, and skin appendages. We hope that this review will be priming water for future research and clinical applications, that will guide us to break new ground for the next generation of skin regeneration.
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Affiliation(s)
- Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jinju Jang
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyo Jung Jo
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Won-Hyeon Kim
- Dental Life Science Research Institute/Innovation Research & Support Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Republic of Korea
| | - Bongju Kim
- Dental Life Science Research Institute/Innovation Research & Support Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Republic of Korea
| | - Heoung-Jae Chun
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Dohyung Lim
- Department of Mechanical Engineering, Sejong University, Seoul 05006, Republic of Korea
- Correspondence: (D.L.); (D.-W.H.)
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
- BIO-IT Fusion Technology Research Institute, Pusan National University, Busan 46241, Republic of Korea
- Correspondence: (D.L.); (D.-W.H.)
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Surowiecka A, Chrapusta A, Klimeczek-Chrapusta M, Korzeniowski T, Drukała J, Strużyna J. Mesenchymal Stem Cells in Burn Wound Management. Int J Mol Sci 2022; 23:ijms232315339. [PMID: 36499664 PMCID: PMC9737138 DOI: 10.3390/ijms232315339] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/18/2022] [Accepted: 11/24/2022] [Indexed: 12/09/2022] Open
Abstract
Mesenchymal stem cells have a known regenerative potential and are used in many indications. They secrete many growth factors, including for fibroblasts (FGF), endothelium (VEGF), as well as 14 anti-inflammatory cytokines, and they stimulate tissue regeneration, promoting the secretion of proteins and glycosaminoglycans of extracellular matrices, such as collagen I, II, III, and V, elastin, and also metalloproteinases. They secrete exosomes that contain proteins, nucleic acids, lipids, and enzymes. In addition, they show the activity of inactivating free radicals. The aim of this study was an attempt to collect the existing literature on the use of stem cells in the treatment of a burn wound. There were 81 studies included in the analysis. The studies differed in terms of the design, burn wound model, source of stem cells, and methods of cellular therapy application. No major side effects were reported, and cellular therapy reduced the healing time of the burn wound. Few case reports on human models did not report any serious adverse events. However, due to the heterogeneity of the evidence, cellular therapy in burn wound treatment remains an experimental method.
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Affiliation(s)
- Agnieszka Surowiecka
- East Center of Burns Treatment and Reconstructive Surgery, Medical University of Lublin, 21-010 Leczna, Poland
- Correspondence:
| | - Anna Chrapusta
- Malopolska Burn and Plastic Surgery Center, Ludwik Rydygier Memorial Hospital in Krakow, 31-826 Cracow, Poland
| | - Maria Klimeczek-Chrapusta
- Malopolska Burn and Plastic Surgery Center, Ludwik Rydygier Memorial Hospital in Krakow, 31-826 Cracow, Poland
| | - Tomasz Korzeniowski
- East Center of Burns Treatment and Reconstructive Surgery, Medical University of Lublin, 21-010 Leczna, Poland
- Chair and Department of Didactics and Medical Simulation, Medical University of Lublin, 20-093 Lublin, Poland
| | - Justyna Drukała
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University in Krakow, 31-826 Cracow, Poland
| | - Jerzy Strużyna
- East Center of Burns Treatment and Reconstructive Surgery, Medical University of Lublin, 21-010 Leczna, Poland
- Department of Plastic Surgery, Reconstructive Surgery and Burn Treatment, Medical University of Lublin, 20-059 Lublin, Poland
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Royzman D, Peckert-Maier K, Stich L, König C, Wild AB, Tauchi M, Ostalecki C, Kiesewetter F, Seyferth S, Lee G, Eming SA, Fuchs M, Kunz M, Stürmer EK, Peters EMJ, Berking C, Zinser E, Steinkasserer A. Soluble CD83 improves and accelerates wound healing by the induction of pro-resolving macrophages. Front Immunol 2022; 13:1012647. [PMID: 36248909 PMCID: PMC9564224 DOI: 10.3389/fimmu.2022.1012647] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/13/2022] [Indexed: 11/22/2022] Open
Abstract
To facilitate the recovery process of chronic and hard-to-heal wounds novel pro-resolving treatment options are urgently needed. We investigated the pro-regenerative properties of soluble CD83 (sCD83) on cutaneous wound healing, where sCD83 accelerated wound healing not only after systemic but also after topical application, which is of high therapeutic interest. Cytokine profile analyses revealed an initial upregulation of inflammatory mediators such as TNFα and IL-1β, followed by a switch towards pro-resolving factors, including YM-1 and IL-10, both expressed by tissue repair macrophages. These cells are known to mediate resolution of inflammation and stimulate wound healing processes by secretion of growth factors such as epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF), which promote vascularization as well as fibroblast and keratinocyte differentiation. In conclusion, we have found strong wound healing capacities of sCD83 beyond the previously described role in transplantation and autoimmunity. This makes sCD83 a promising candidate for the treatment of chronic- and hard-to-heal wounds.
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Affiliation(s)
- Dmytro Royzman
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- *Correspondence: Dmytro Royzman, ; Alexander Steinkasserer,
| | - Katrin Peckert-Maier
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Lena Stich
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Christina König
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Andreas B. Wild
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Miyuki Tauchi
- Department of Internal Medicine 2, University Hospital Erlangen, FAU, Erlangen, Germany
| | - Christian Ostalecki
- Department of Dermatology, University Hospital Erlangen, FAU, Erlangen, Germany
| | | | - Stefan Seyferth
- Division of Pharmaceutics, Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Geoffrey Lee
- Division of Pharmaceutics, Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sabine A. Eming
- Department of Dermatology, University Hospital Cologne, Center for Molecular Medicine Cologne (CMMC), Cologne Excellence Cluster Cluster of Excellence for Aging Research (CECAD), University of Cologne, Cologne, Germany
| | - Maximilian Fuchs
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany
| | - Meik Kunz
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Hannover, Germany
- Department of Medical Informatics, Friedrich-Alexander University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany
| | - Ewa K. Stürmer
- Department for Vascular Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eva M. J. Peters
- Psychoneuroimmunology Laboratory, Klinik für Psychosomatik und Psychotherapie, Justus-Liebig Universität Gießen, Gießen, Germany
| | - Carola Berking
- Department of Dermatology, University Hospital Erlangen, FAU, Erlangen, Germany
| | - Elisabeth Zinser
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Alexander Steinkasserer
- Department of Immune Modulation, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- *Correspondence: Dmytro Royzman, ; Alexander Steinkasserer,
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14
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Yan W, Hao F, Zhe X, Wang Y, Liu D. Neural, adipocyte and hepatic differentiation potential of primary and secondary hair follicle stem cells isolated from Arbas Cashmere goats. BMC Vet Res 2022; 18:313. [PMID: 35971123 PMCID: PMC9377108 DOI: 10.1186/s12917-022-03420-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 08/12/2022] [Indexed: 11/29/2022] Open
Abstract
Background Arbas Cashmere goats are excellent domestic breeds with high yields of wool and cashmere. Their wool and cashmere can bring huge benefits to the livestock industry. Our studies intend to more fully understand the biological characteristics of hair follicle stem cells (HFSCs) in order to further explore the mechanisms of wool and cashmere regular regeneration. And they have been increasingly considered as promising multipotent cells in regenerative medicine because of their capacity to self-renew and differentiate. However, many aspects of the specific growth characteristics and differentiation ability of HFSCs remain unknown. This study aimed to further explore the growth characteristics and pluripotency of primary hair follicle stem cells (PHFSCs) and secondary hair follicle stem cells (SHFCs). Results We obtained PHFSCs and SHFSCs from Arbas Cashmere goats using combined isolation and purification methods. The proliferation and vitality of the two types of HFSCs, as well as the growth patterns, were examined. HFSC-specific markers and genes related to pluripotency, were subsequently identified. The PHFSCs and SHFSCs of Arbas Cashmere goat have a typical cobblestone morphology. Moreover, the PHFSCs and SHFSCs express HFSC surface markers, including CD34, K14, K15, K19 and LGR5. We also identified pluripotency-associated gene expression, including SOX2, OCT4 and SOX9, in PHFSCs and SHFSCs. Finally, PHFSCs and SHFSCs displayed multipotent abilities. PHFSCs and SHFSCs can be directed to differentiate into adipocyte-like, neural-like, and hepatocyte-like cells. Conclusions In conclusion, this study confirmed that the biological characteristics and differentiation potential of PHFSCs and SHFSCs from Arbas Cashmere goats. These findings broaden and refine our knowledge of types and characteristics of adult stem cells. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03420-3.
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Affiliation(s)
- Wei Yan
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010021, China
| | - Fei Hao
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010021, China
| | - Xiaoshu Zhe
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010021, China
| | - Yingmin Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010021, China
| | - Dongjun Liu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, 010021, China.
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15
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Kang MS, Kwon M, Lee SH, Kim WH, Lee GW, Jo HJ, Kim B, Yang SY, Kim KS, Han DW. 3D printing of skin equivalents with hair follicle structures and epidermal-papillary-dermal layers using gelatin/hyaluronic acid hydrogels. Chem Asian J 2022; 17:e202200620. [PMID: 35866189 DOI: 10.1002/asia.202200620] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/18/2022] [Indexed: 11/10/2022]
Abstract
Recent advances in three-dimensional (3D) bioprinting technologies enabled the fabrication of sophisticated live 3D tissue analogs. Although various hydrogel-based bioink has been reported, the development of advanced bioink materials that can reproduce the composition of native extracellular matrix (ECM) accurately and mimic the intrinsic property of laden cells is still challenging. In this work, 3D printed skin equivalents incorporating hair follicle structures and epidermal-papillary-dermal layers are fabricated with gelatin methacryloyl (GelMA)/hyaluronic acid (HA) MA (HAMA) hydrogel (GelMA/HAMA) bioink. The composition of collagen and glycosaminoglycan (GAG) of native skin was recapitulated by adjusting the combination of GelMA and HAMA. The GelMA/HAMA bioink was proven to have excellent viscoelastic and physicochemical properties, 3D printability, cytocompatibility, and functionality to maintain the hair inductive potency and facilitated spontaneous hair pore development. Overall, we suggest that the GelMA/HAMA hydrogels can be promising candidates as bioinks for the 3D printing of skin equivalents with epidermal-papillary-dermal multi-layers and hair follicle structures, and they might serve as a useful model in skin tissue engineering and regeneration.
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Affiliation(s)
- Moon Sung Kang
- Pusan National University, Cogno-Mechatronics Engineering, KOREA, REPUBLIC OF
| | - Mina Kwon
- Pusan National University, School of Chemical Engineering, KOREA, REPUBLIC OF
| | - Seok Hyun Lee
- Pusan National University, Cogno-Mechatronics Engineering, KOREA, REPUBLIC OF
| | - Won-Hyeon Kim
- Seoul National University Dental Hospital, Dental Life Science Research Institute, KOREA, REPUBLIC OF
| | - Gyeong Won Lee
- Pusan National University - Milyang Campus, Biomaterials Science, KOREA, REPUBLIC OF
| | - Hyo Jung Jo
- Pusan National University, Cogno-Mechatronics Engineering, KOREA, REPUBLIC OF
| | - Bongju Kim
- Seoul National University Dental Hospital, Dental Life Science Research Institute, KOREA, REPUBLIC OF
| | - Seung Yun Yang
- Pusan National University - Milyang Campus, Biomaterials Science, KOREA, REPUBLIC OF
| | - Ki Su Kim
- Pusan National University, School of Chemical Engineering, KOREA, REPUBLIC OF
| | - Dong-Wook Han
- Pusan National University, Cogno-Mechatronics Engineering, Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Korea, 46241, Busan, KOREA, REPUBLIC OF
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16
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Wang Y, Cheng L, Zhao H, Li Z, Chen J, Cen Y, Zhang Z. The Therapeutic Role of ADSC-EVs in Skin Regeneration. Front Med (Lausanne) 2022; 9:858824. [PMID: 35755023 PMCID: PMC9218955 DOI: 10.3389/fmed.2022.858824] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/20/2022] [Indexed: 02/05/2023] Open
Abstract
Large skin defects caused by burns, unhealing chronic wounds, and trauma, are still an intractable problem for clinicians and researchers. Ideal skin regeneration includes several intricate and dynamic stages of wound repair and regeneration of skin physiological function. Adipose-derived stem cells (ADSCs), a type of mesenchymal stem cells (MSCs) with abundant resources and micro-invasive extraction protocols, have been reported to participate in each stage of promoting skin regeneration via paracrine effects. As essential products secreted by ADSCs, extracellular vesicles (EVs) derived from ADSCs (ADSC-EVs) inherit such therapeutic potential. However, ADSC-EVs showed much more clinical superiorities than parental cells. ADSC-EVs carry various mRNAs, non-coding RNAs, proteins, and lipids to regulate the activities of recipient cells and eventually accelerate skin regeneration. The beneficial role of ADSCs in wound repair has been widely accepted, while a deep comprehension of the mechanisms of ADSC-EVs in skin regeneration remains unclear. In this review, we provided a basic profile of ADSC-EVs. Moreover, we summarized the latest mechanisms of ADSC-EVs on skin regeneration from the aspects of inflammation, angiogenesis, cell proliferation, extracellular matrix (ECM) remodeling, autophagy, and oxidative stress. Hair follicle regeneration and skin barrier repair stimulated by ADSC-EVs were also reviewed. The challenges and prospects of ADSC-EVs-based therapies were discussed at the end of this review.
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Affiliation(s)
- Yixi Wang
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Lihui Cheng
- Department of Central Sterile Supply, West China Hospital, Sichuan University, Chengdu, China
| | - Hanxing Zhao
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zhengyong Li
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Junjie Chen
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Cen
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zhenyu Zhang
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
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17
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Mao MQ, Jing J, Miao YJ, Lv ZF. Epithelial-Mesenchymal Interaction in Hair Regeneration and Skin Wound Healing. Front Med (Lausanne) 2022; 9:863786. [PMID: 35492363 PMCID: PMC9048199 DOI: 10.3389/fmed.2022.863786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/16/2022] [Indexed: 11/30/2022] Open
Abstract
Interactions between epithelial and mesenchymal cells influence hair follicles (HFs) during embryonic development and skin regeneration following injury. Exchanging soluble molecules, altering key pathways, and extracellular matrix signal transduction are all part of the interplay between epithelial and mesenchymal cells. In brief, the mesenchyme contains dermal papilla cells, while the hair matrix cells and outer root sheath represent the epithelial cells. This study summarizes typical epithelial–mesenchymal signaling molecules and extracellular components under the control of follicular stem cells, aiming to broaden our current understanding of epithelial–mesenchymal interaction mechanisms in HF regeneration and skin wound healing.
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18
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Guo Y, Wei W, Zhang A, Tao C, Li X, Wang J, Li Q, Jin P. The combination of platelet−rich plasma with botulinum toxin A in the treatment of hyaluronic acid embolic cutaneous necrosis and alopecia. Dermatol Ther 2022; 35:e15442. [PMID: 35279923 DOI: 10.1111/dth.15442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/19/2022] [Accepted: 03/07/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Yanping Guo
- Department of Plastic Surgery Affiliated Hospital of Xuzhou Medical University Jiangsu China
| | - Wuhan Wei
- School of Clinical Medicine Xuzhou Medical University Jiangsu China
| | - Aijun Zhang
- Department of Plastic Surgery Affiliated Hospital of Xuzhou Medical University Jiangsu China
| | - Changbo Tao
- Department of Plastic Surgery Affiliated Hospital of Xuzhou Medical University Jiangsu China
| | - Xueyang Li
- Department of Plastic Surgery Affiliated Hospital of Xuzhou Medical University Jiangsu China
| | - Ji Wang
- School of Clinical Medicine Xuzhou Medical University Jiangsu China
| | - Qiang Li
- Department of Plastic Surgery Affiliated Hospital of Xuzhou Medical University Jiangsu China
| | - Peisheng Jin
- Department of Plastic Surgery Affiliated Hospital of Xuzhou Medical University Jiangsu China
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19
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Wang M, Yao S, He D, Qahar M, He J, Yin M, Wu J, Yang G. Type 2 Diabetic Mellitus Inhibits Skin Renewal through Inhibiting WNT-Dependent Lgr5+ Hair Follicle Stem Cell Activation in C57BL/6 Mice. J Diabetes Res 2022; 2022:8938276. [PMID: 35469170 PMCID: PMC9034921 DOI: 10.1155/2022/8938276] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Hair follicles are important accessory organs of the skin, and it is important for skin renewal and performs variety of important functions. Diabetes can cause several dermatoses; however, its effect on hair follicles is unclear. The purpose of this study was to investigate the effect of type II diabetes (T2DM) on the hair follicles of mice. METHODS Seven-week-old male C57BL/6 littermate mice were divided into two groups. The treatment group was injected with streptozotocin (STZ) to induce T2DM, and the control group was parallelly injected with the same dose of buffer. Seven days after injection, the back is depilated to observe the hair follicle regeneration. Hair follicle regeneration was observed by naked eyes and HE staining. The proliferation of the skin cells was observed by PCNA and K14 staining. The altered genes were screened by RNA sequencing and verified by qRT-PCR. In addition, Lgr5 + GFP/mTmG transgenic mice were used to observe the effect of T2DM on Lgr5 hair follicle stem cells (HFSC). And the expression of WNT4 and WNT8A were measured by Western Blot. RESULTS T2DM inhibited hair follicle regeneration. Compared to control mice, T2DM mice had smaller hair follicles, reduced skin thickness, and less expression of PCNA and K14. RNA sequencing showed that the two groups had significant differences in cell cycle and proliferation-related pathways. Compared with the control mice, the mRNA expression of Lgr4, Lgr5, Wnt4, and Wnt8a was decreased in the T2DM group. Moreover, T2DM inhibited the activation of Lgr5 HFSC and the expression of WNT4 and WNT8A. CONCLUSIONS T2DM inhibited hair follicle regeneration and skin cells proliferation by inhibiting WNT-dependent Lgr5 HFSC activation. This may be an important reason for the reduction of skin renewal ability and the formation of chronic wounds caused by diabetes. It is important for the treatment of chronic diabetic wounds and the development of tissue engineering.
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Affiliation(s)
- Minghui Wang
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
| | - Shangsheng Yao
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
| | - Dehua He
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
| | - Mulan Qahar
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
| | - Jinqing He
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
| | - Meifang Yin
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
| | - Jun Wu
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
- Human Histology & Embryology Section, Department of Surgery, Dentistry, Pediatrics & Gynecology, University of Verona Medical School, Verona 37134, Italy
| | - Guang Yang
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China
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20
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Saha D, Thannimangalath S, Budamakuntla L, Loganathan E, Jamora C. Hair Follicle Grafting Therapy Promotes Re-Emergence of Critical Skin Components in Chronic Nonhealing Wounds. JID INNOVATIONS 2021; 1:100041. [PMID: 34909736 PMCID: PMC8659399 DOI: 10.1016/j.xjidi.2021.100041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/26/2021] [Accepted: 06/11/2021] [Indexed: 12/03/2022] Open
Abstract
An exploding public health crisis is the exponential growth in the incidence of chronic nonhealing ulcers associated with diseases such as diabetes. Various modalities have been developed to stimulate wound closure that is otherwise recalcitrant to standard clinical treatments. However, these approaches primarily focus on the process of re-epithelialization and are often deficient in regenerating the full spectrum of structures necessary for normal skin function. Autologous hair follicle grafting is a recent therapy to stimulate the closure of such nonhealing wounds, and we observed effects beyond the epidermis to other important components of the dermis. We found that hair follicle grafting facilitated the reappearance of various undifferentiated and differentiated layers of the epidermis with the restoration of epidermal junctions. In addition, other important structures that are critical for cutaneous health and function such as the blood and lymph vasculature, nerve fibers, and sweat gland structures were restored in postgrafted wounds. Interestingly, both immune cells and inflammatory signals were substantially decreased, indicating a reduction in the chronic inflammation that is a hallmark of nonhealing wounds. Our observation that punch wounds created on the postgrafted area likewise healed suggests that this is a self-sustaining long-term therapy for patients with chronic wounds.
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Affiliation(s)
- Dyuti Saha
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, India
- Department of Biology, Manipal Academy of Higher Education, Manipal, India
| | - Sujaya Thannimangalath
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, India
| | - Leelavathy Budamakuntla
- Department of Dermatology, Bangalore Medical College and Research Institute, Bangalore, India
| | - Eswari Loganathan
- Department of Dermatology, Bangalore Medical College and Research Institute, Bangalore, India
| | - Colin Jamora
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, India
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21
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Jimenez F, Alam M, Vogel JE, Avram M. Hair Transplantation: Basic Overview. J Am Acad Dermatol 2021; 85:803-814. [PMID: 33905785 DOI: 10.1016/j.jaad.2021.03.124] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 03/02/2021] [Accepted: 03/16/2021] [Indexed: 10/21/2022]
Abstract
Modern hair restoration surgery is based on a technique known as follicular unit transplantation in which follicular units (FUs) are the exclusive structures used as hair grafts. In Part 1 of this two-part review, we describe how the techniques employed in hair transplantation have evolved into their present forms. Anatomic concepts of specific relevance for dermatologists are discussed, including the distribution and ex-vivo morphology of scalp FUs. Male androgenetic alopecia and female pattern hair loss are the most common reasons for hair loss consultations with dermatologists and will be the primary focus of this review. However, as not all hair disorders are suitable for transplantation, this review will also describe which scalp conditions are amenable to surgery and which are not. In addition, guidelines are provided to help dermatologists better define good or bad candidates for hair transplantation. Finally, other conditions for which hair transplantation surgery is indicated are reviewed.
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Affiliation(s)
- Francisco Jimenez
- Mediteknia Dermatology and Hair Transplant Clinic, Universidad Fernando Pessoa Canarias, Gran Canaria, Spain.
| | - Majid Alam
- Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar, Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - James E Vogel
- Associate Professor of Surgery, Department of Plastic Surgery, The Johns Hopkins Hospital and School of Medicine, Baltimore, MD, USA
| | - Marc Avram
- Clinical Professor of Dermatology Weill Cornell Medical School; Private practice, New York, NY, USA
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