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Kameni LE, Griffin M, Berry CE, Shariatzadeh S, Downer MA, Valencia C, Fazilat AZ, Nazerali R, Momeni A, Januszyk M, Longaker MT, Wan DC. Single-cell transcriptional analysis of irradiated skin reveals changes in fibroblast subpopulations and variability in caveolin expression. Radiat Oncol 2024; 19:82. [PMID: 38926892 PMCID: PMC11200992 DOI: 10.1186/s13014-024-02472-z] [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: 12/13/2023] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Radiation-induced fibrosis (RIF) is an important late complication of radiation therapy, and the resulting damaging effects of RIF can significantly impact reconstructive outcomes. There is currently a paucity of effective treatment options available, likely due to the continuing knowledge gap surrounding the cellular mechanisms involved. In this study, detailed analyses of irradiated and non-irradiated human skin samples were performed incorporating histological and single-cell transcriptional analysis to identify novel features guiding development of skin fibrosis following radiation injury. METHODS Paired irradiated and contralateral non-irradiated skin samples were obtained from six female patients undergoing post-oncologic breast reconstruction. Skin samples underwent histological evaluation, immunohistochemistry, and biomechanical testing. Single-cell RNA sequencing was performed using the 10X single cell platform. Cells were separated into clusters using Seurat in R. The SingleR classifier was applied to ascribe cell type identities to each cluster. Differentially expressed genes characteristic to each cluster were then determined using non-parametric testing. RESULTS Comparing irradiated and non-irradiated skin, epidermal atrophy, dermal thickening, and evidence of thick, disorganized collagen deposition within the extracellular matrix of irradiated skin were readily appreciated on histology. These histologic features were associated with stiffness that was higher in irradiated skin. Single-cell RNA sequencing revealed six predominant cell types. Focusing on fibroblasts/stromal lineage cells, five distinct transcriptional clusters (Clusters 0-4) were identified. Interestingly, while all clusters were noted to express Cav1, Cluster 2 was the only one to also express Cav2. Immunohistochemistry demonstrated increased expression of Cav2 in irradiated skin, whereas Cav1 was more readily identified in non-irradiated skin, suggesting Cav1 and Cav2 may act antagonistically to modulate fibrotic cellular responses. CONCLUSION In response to radiation therapy, specific changes to fibroblast subpopulations and enhanced Cav2 expression may contribute to fibrosis. Altogether, this study introduces a novel pathway of caveolin involvement which may contribute to fibrotic development following radiation injury.
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Affiliation(s)
- Lionel E Kameni
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Michelle Griffin
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Charlotte E Berry
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Siavash Shariatzadeh
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Mauricio A Downer
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Caleb Valencia
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Alexander Z Fazilat
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Rahim Nazerali
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Arash Momeni
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael Januszyk
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 257 Campus Drive, GK 102, Stanford, CA, 94305-5148, USA.
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA, USA
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, 257 Campus Drive, GK 102, Stanford, CA, 94305-5148, USA.
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2
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Liu M, Lu F, Feng J. Aging and homeostasis of the hypodermis in the age-related deterioration of skin function. Cell Death Dis 2024; 15:443. [PMID: 38914551 PMCID: PMC11196735 DOI: 10.1038/s41419-024-06818-z] [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: 02/22/2023] [Revised: 02/01/2024] [Accepted: 06/10/2024] [Indexed: 06/26/2024]
Abstract
Adipose tissues in the hypodermis, the crucial stem cell reservoir in the skin and the endocrine organ for the maintenance of skin homeostasis undergo significant changes during skin aging. Dermal white adipose tissue (dWAT) has recently been recognized as an important organ for both non-metabolic and metabolic health in skin regeneration and rejuvenation. Defective differentiation, adipogenesis, improper adipocytokine production, and immunological dissonance dysfunction in dWAT lead to age-associated clinical changes. Here, we review age-related alterations in dWAT across levels, emphasizing the mechanisms underlying the regulation of aging. We also discuss the pathogenic changes involved in age-related fat dysfunction and the unfavorable consequences of accelerated skin aging, such as chronic inflammaging, immunosenescence, delayed wound healing, and fibrosis. Research has shown that adipose aging is an early initiation event and a potential target for extending longevity. We believe that adipose tissues play an essential role in aging and form a potential therapeutic target for the treatment of age-related skin diseases. Further research is needed to improve our understanding of this phenomenon.
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Affiliation(s)
- Meiqi Liu
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, Guangdong, 510515, People's Republic of China
| | - Feng Lu
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, Guangdong, 510515, People's Republic of China
| | - Jingwei Feng
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, Guangdong, 510515, People's Republic of China.
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Jerala M, Remic T, Hauptman N, Homan P, Zajšek N, Petitjean M, Chen L, Zidar N. Thrombospondin 2, matrix Gla protein and digital analysis identified distinct fibroblast populations in fibrostenosing Crohn's disease. Sci Rep 2024; 14:13810. [PMID: 38877292 PMCID: PMC11178913 DOI: 10.1038/s41598-024-64672-7] [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: 12/20/2023] [Accepted: 06/11/2024] [Indexed: 06/16/2024] Open
Abstract
Fibrosis is an important complication in inflammatory bowel diseases. Previous studies suggest an important role of matrix Gla protein (MGP) and thrombospondin 2 (THBS2) in fibrosis in various organs. Our aim was to analyse their expression together with regulatory miRNAs in submucosal and subserosal fibroblasts in ulcerative colitis (UC) and Crohn's disease (CD) using immunohistochemistry and qPCR. Digital pathology was used to compare collagen fibre characteristics of submucosal and subserosal fibrosis. Immunohistochemistry showed expression of MGP, but not THBS2 in submucosa in UC and CD. In the subserosa, there was strong staining for both proteins in CD but not in UC. qPCR showed significant upregulation of THBS2 and MGP genes in CD subserosa compared to the submucosa. Digital pathology analysis revealed higher proportion of larger and thicker fibres that were more tortuous and reticulated in subserosal fibrosis compared to submucosal fibrosis. These results suggest distinct fibroblast populations in fibrostenosing CD, and are further supported by image analysis showing significant differences in the morphology and architecture of collagen fibres in submucosal fibrosis in comparison to subserosal fibrosis. Our study is the first to describe differences in submucosal and subserosal fibroblast populations, contributing to understanding of the pathogenesis of fibrostenosis in CD.
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Affiliation(s)
- Miha Jerala
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Tinkara Remic
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Nina Hauptman
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Pia Homan
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Neža Zajšek
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | | | - Li Chen
- PharmaNest Inc., Princeton, NJ, 08540, USA
| | - Nina Zidar
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia.
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4
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Guo Q, Ji J, Chen F, Shi J, Liu H, Zhu C. Effect of black cloth ointment on hypertrophic scar formation: An investigation using integrated network pharmacology and animal assay. Skin Res Technol 2024; 30:e13791. [PMID: 38895902 PMCID: PMC11187852 DOI: 10.1111/srt.13791] [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: 01/05/2024] [Revised: 05/19/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Hypertrophic scars (HS) are a common disfiguring condition in daily clinical encounters which brings a lot of anxieties and concerns to patients, but the treatment options of HS are limited. Black cloth ointment (BCO), as a cosmetic ointment applicable to facial scars, has shown promising therapeutic effects for facial scarring. However, the molecular mechanisms underlying its therapeutic effects remain unclear. MATERIAL AND METHODS Network pharmacology was first applied to analyze the major active components of BCO and the related signaling pathways. Subsequently, rabbit ear scar model was successfully established to determine the pharmacological effects of BCO and its active component β-elemene on HS. Finally, the molecular mechanism of BCO and β-elemene was analyzed by Western blot. RESULTS Through the network pharmacology, it showed that β-elemene was the main active ingredient of BCO, and it could significantly improve the pathological structure of HS and reduce collagen deposition. BCO and β-elemene could increase the expression of ER stress-related markers and promote the increase of apoptotic proteins in the Western blot experiment and induce the apoptosis of myofibroblasts. CONCLUSIONS Our findings indicate that the material basis for the scar-improving effects of the BCO is β-elemene, and cellular apoptosis is the key mechanism through which the BCO and β-elemene exert their effects.
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Affiliation(s)
- Qin Guo
- Department of DermatologyAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Jin Ji
- Department of DermatologyAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Fang Chen
- Department of DermatologyAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Jianxin Shi
- Department of DermatologyAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Huaxu Liu
- Hospital for Skin DiseasesShandong First Medical UniversityJinanChina
| | - Changle Zhu
- Department of PathologyAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
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Zhang Y, Zouboulis CC, Xiao Z. Exosomes from adipose-derived stem cells activate sebocytes through the PI3K/AKT/SREBP-1 pathway to accelerate wound healing. Cell Tissue Res 2024; 396:329-342. [PMID: 38411945 PMCID: PMC11144157 DOI: 10.1007/s00441-024-03872-z] [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: 05/29/2023] [Accepted: 01/25/2024] [Indexed: 02/28/2024]
Abstract
Sebocyte regeneration after injury is considered a key element of functional skin repair. Exosomes from adipose-derived stem cells (ADSCs-EXO) accelerate wound healing by promoting the proliferation of fibroblasts. However, the effects of ADSCs-EXO on sebocytes are largely unknown. In this study, the effects of ADSCs-EXO on sebocyte proliferation and migration were evaluated. The levels of phosphorylated AKT (p-AKT), AKT, sterol regulatory-element binding protein (SREBP), and perilipin-1 (PLIN-1) were detected with immunofluorescence, quantitative PCR, and western blot analysis. RNA-Seq was used to analyze the differential gene expression between the ADSCs-EXO group and the control group under anaerobic conditions. Lipogenesis was assessed with Nile red staining. In animal studies, full-thickness skin wounds in BALB/c mice were treated with gelatin methacrylate (GelMA) hydrogel-loaded sebocytes alone or in combination with ADSCs-EXO. Histopathological assessments of the wound tissues were performed Masson Trichrome staining, Immunohistochemical staining and so on. The phosphatidylinositol 3-kinase (PI3K)/AKT pathway blocker LY294002 inhibited the effects of ADSCs-EXO on p-AKT and sebocytes proliferation. ADSCs-EXO also regulated the expression of SREBP-1 and PLIN-1 through the PI3K/AKT pathway in an oxygen level-dependent manner. In BALB/c mice, ADSCs-EXO accelerated sebocyte-assisted wound healing and regeneration. These in vitro and in vivo results supported that ADSCs-EXO can promote the regeneration of fully functional skin after injury through the PI3K/AKT-dependent activation of sebocytes.
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Affiliation(s)
- Yingbo Zhang
- Department of Plastic and Aesthetic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China
| | - Christos C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane and Faculty of Health Sciences Brandenburg, Dessau, Germany
| | - Zhibo Xiao
- Department of Plastic and Aesthetic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China.
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Rojas L, Tobar N, Espinoza J, Ríos S, Martínez C, Martínez J, Graves DT, Smith PC. FOXO1 regulates wound-healing responses in human gingival fibroblasts. J Periodontal Res 2024; 59:611-621. [PMID: 38500269 PMCID: PMC11116056 DOI: 10.1111/jre.13257] [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: 12/08/2022] [Revised: 02/01/2024] [Accepted: 02/10/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND AND OBJECTIVE Forkhead box-O 1 (FOXO1) is a transcription factor actively involved in oral wound healing at the epithelial barrier. However, less is known regarding the role of FOXO1 during the tissue repair response in the connective tissue compartment. This study explored the involvement of FOXO1 in the modulation of fibroblast activity related to wound healing. METHODS Primary cultures of human gingival fibroblasts were obtained from four healthy young donors. Myofibroblastic differentiation, collagen gel contraction, cell migration, cell spreading, and integrin activation were evaluated in the presence or absence of a FOXO1 inhibitor (AS1842856). Variations in mRNA and proteins of interest were evaluated through qRT-PCR and western blot, respectively. Distribution of actin, α-smooth muscle actin, and β1 integrin was evaluated using immunofluorescence. FOXO1 and TGF-β1 expression in gingival wound healing was assessed by immunohistochemistry in gingival wounds performed in C57BL/6 mice. Images were analyzed using ImageJ/Fiji. ANOVA or Kruskal-Wallis test followed by Tukey's or Dunn's post-hoc test was performed. All data are expressed as mean ± SD. p < .05 was considered statistically significant. RESULTS FOXO1 inhibition caused a decrease in the expression of the myofibroblastic marker α-SMA along with a reduction in fibronectin, type I collagen, TGF-β1, and β1 integrin mRNA level. The FOXO1 inhibitor also caused decreases in cell migration, cell spreading, collagen gel contraction, and β1 integrin activation. FOXO1 and TGF-β1 were prominently expressed in gingival wounds in fibroblastic cells located at the wound bed. CONCLUSION The present study indicates that FOXO1 plays an important role in the modulation of several wound-healing functions in gingival fibroblast. Moreover, our findings reveal an important regulatory role for FOXO1 on the differentiation of gingival myofibroblasts, the regulation of cell migration, and collagen contraction, all these functions being critical during tissue repair and fibrosis.
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Affiliation(s)
- Leticia. Rojas
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicolás Tobar
- Cell Biology Laboratory, Institute of Nutrition and Food Technology, University of Chile
| | - Javier Espinoza
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile
| | - Susana Ríos
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile
| | - Constanza Martínez
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile
| | - Jorge Martínez
- Cell Biology Laboratory, Institute of Nutrition and Food Technology, University of Chile
| | - Dana T. Graves
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Patricio C. Smith
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile
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7
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Zheng S, Wang WX. Single-Cell RNA Sequencing Profiling Cellular Heterogeneity and Specific Responses of Fish Gills to Microplastics and Nanoplastics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5974-5986. [PMID: 38512049 DOI: 10.1021/acs.est.3c10338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Fish gills are highly sensitive organs for microplastic (MP) and nanoplastic (NP) invasions, but the cellular heterogeneity of fish gills to MPs and NPs remains largely unknown. We employed single-cell RNA sequencing to investigate the responses of individual cell populations in tilapia Oreochromis niloticus gills to MP and NP exposure at an environmentally relevant concentration. Based on the detected differentially expressed gene (DEG) numbers, the most affected immune cells by MP exposure were macrophages, while the stimulus of NPs primarily targeted T cells. In response to MPs and NPs, H+-ATPase-rich cells exhibited distinct changes as compared with Na+/K+-ATPase-rich cells and pavement cells. Fibroblasts were identified as a potential sensitive cell-type biomarker for MP interaction with O. niloticus gills, as evidenced by the largely reduced cell counts and the mostly detected DEGs among the 12 identified cell populations. The most MP-sensitive fibroblast subpopulation in O. niloticus gills was lipofibroblasts. Cell-cell communications between fibroblasts and H+-ATPase-rich cells, neurons, macrophages, neuroepithelial cells, and Na+/K+-ATPase-rich cells in O. niloticus gills were significantly inhibited by MP exposure. Collectively, our study demonstrated the cellular heterogeneity of O. niloticus gills to MPs and NPs and provided sensitive markers for their toxicological mechanisms at single-cell resolution.
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Affiliation(s)
- Siwen Zheng
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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Jin R, Xu H, Zhou M, Lin F, Xu W, Xu A. EGR1 Mediated Reduction of Fibroblast Secreted-TGF-β1 Exacerbated CD8 + T Cell Inflammation and Migration in Vitiligo. Inflammation 2024; 47:503-512. [PMID: 37880426 DOI: 10.1007/s10753-023-01922-2] [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: 08/30/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023]
Abstract
Vitiligo is a T cell-mediated depigment skin disease caused by the complex interplay between melanocyte dysfunction, environmental stimulation, and dysregulated immune signals. Transforming growth factor-β1 (TGF-β1), which typically derives from regulatory T cells, has long been identified at low levels in the peripheral system of vitiligo patients. Here, through RNA-sequencing and transcription factor enrichment, we revealed that in response to CD8+ T cell-secreted interferon-gamma (IFN-γ), stromal fibroblast downregulates early growth response 1 (EGR1) activity, leading to TGF-β1 deficiency. The defective immune regulation loop further exacerbated local CD8+ T cell inflammation and promoted inflammatory cell migration in vitiligo. Thus, fibroblast-derived TGF-β1 plays an important stromal signal in vitiligo pathogenesis.
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Affiliation(s)
- Rong Jin
- Department of Dermatology, Hangzhou Third People's Hospital, 38 Xihu Ave, Hangzhou, Zhejiang Province 310009, People's Republic of China
| | - Hao Xu
- Department of Dermatology, Hangzhou Third People's Hospital, 38 Xihu Ave, Hangzhou, Zhejiang Province 310009, People's Republic of China
| | - Miaoni Zhou
- Department of Dermatology, Hangzhou Third People's Hospital, 38 Xihu Ave, Hangzhou, Zhejiang Province 310009, People's Republic of China
| | - Fuquan Lin
- Department of Dermatology, Hangzhou Third People's Hospital, 38 Xihu Ave, Hangzhou, Zhejiang Province 310009, People's Republic of China
| | - Wen Xu
- Department of Dermatology, Hangzhou Third People's Hospital, 38 Xihu Ave, Hangzhou, Zhejiang Province 310009, People's Republic of China
| | - Aie Xu
- Department of Dermatology, Hangzhou Third People's Hospital, 38 Xihu Ave, Hangzhou, Zhejiang Province 310009, People's Republic of China.
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Chien WC, Tsai TF. Pressure and Skin: A Review of Disease Entities Driven or Influenced by Mechanical Pressure. Am J Clin Dermatol 2024; 25:261-280. [PMID: 38159214 DOI: 10.1007/s40257-023-00833-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
Skin perceives and reacts to external mechanical forces to create resistance against the external environment. Excessive or inappropriate stimuli of pressure may lead to cellular alterations of the skin and the development of both benign and malignant skin disorders. We conducted a comprehensive literature review to delve into the pressure-induced and aggravated skin disorders and their underlying pressure-related mechanisms. Dysregulated mechanical responses of the skin give rise to local inflammation, ischemia, necrosis, proliferation, hyperkeratosis, impaired regeneration, atrophy, or other injurious reactions, resulting in various disease entities. The use of personal devices, activities, occupations, weight bearing, and even unintentional object contact and postures are potential scenarios that account for the development of pressure-related skin disorders. The spectrum of these skin disorders may involve the epidermis (keratinocytes and melanocytes), hair follicles, eccrine glands, nail apparatuses, dermis (fibroblasts, mast cells, and vasculature), subcutis, and fascia. Clarifying the clinical context of each patient and recognizing how pressure at the cellular and tissue levels leads to skin lesions can enhance our comprehension of pressure-related skin disorders to attain better management.
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Affiliation(s)
- Wei-Chen Chien
- Department of Medical Education, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, Taiwan
| | - Tsen-Fang Tsai
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei, Taiwan.
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10
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Laiva AL, O'Brien FJ, Keogh MB. Dual delivery gene-activated scaffold directs fibroblast activity and keratinocyte epithelization. APL Bioeng 2024; 8:016104. [PMID: 38283135 PMCID: PMC10821797 DOI: 10.1063/5.0174122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/12/2024] [Indexed: 01/30/2024] Open
Abstract
Fibroblasts are the most abundant cell type in dermal skin and keratinocytes are the most abundant cell type in the epidermis; both play a crucial role in wound remodeling and maturation. We aim to assess the functionality of a novel dual gene activated scaffold (GAS) on human adult dermal fibroblasts (hDFs) and see how the secretome produced could affect human dermal microvascular endothelial cells (HDMVECs) and human epidermal keratinocyte (hEKs) growth and epithelization. Our GAS is a collagen chondroitin sulfate scaffold loaded with pro-angiogenic stromal derived factor (SDF-1α) and/or an anti-aging β-Klotho plasmids. hDFs were grown on GAS for two weeks and compared to gene-free scaffolds. GAS produced a significantly better healing outcome in the fibroblasts than in the gene-free scaffold group. Among the GAS groups, the dual GAS induced the most potent pro-regenerative maturation in fibroblasts with a downregulation in proliferation (twofold, p < 0.05), fibrotic remodeling regulators TGF-β1 (1.43-fold, p < 0.01) and CTGF (1.4-fold, p < 0.05), fibrotic cellular protein α-SMA (twofold, p < 0.05), and fibronectin matrix deposition (twofold, p < 0.05). The dual GAS secretome also showed enhancements of paracrine keratinocyte pro-epithelializing ability (1.3-fold, p < 0.05); basement membrane regeneration through laminin (6.4-fold, p < 0.005) and collagen IV (8.7-fold, p < 0.005) deposition. Our findings demonstrate enhanced responses in dual GAS containing hDFs by proangiogenic SDF-1α and β-Klotho anti-fibrotic rejuvenating activities. This was demonstrated by activating hDFs on dual GAS to become anti-fibrotic in nature while eliciting wound repair basement membrane proteins; enhancing a proangiogenic HDMVECs paracrine signaling and greater epithelisation of hEKs.
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Affiliation(s)
| | | | - Michael B. Keogh
- Author to whom correspondence should be addressed:. Tel.: +973 17351450
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11
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Voza FA, Huerta CT, Le N, Shao H, Ribieras A, Ortiz Y, Atkinson C, Machuca T, Liu ZJ, Velazquez OC. Fibroblasts in Diabetic Foot Ulcers. Int J Mol Sci 2024; 25:2172. [PMID: 38396848 PMCID: PMC10889208 DOI: 10.3390/ijms25042172] [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: 12/15/2023] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Fibroblasts are stromal cells ubiquitously distributed in the body of nearly every organ tissue. These cells were previously considered to be "passive cells", solely responsible for ensuring the turnover of the extracellular matrix (ECM). However, their versatility, including their ability to switch phenotypes in response to tissue injury and dynamic activity in the maintenance of tissue specific homeostasis and integrity have been recently revealed by the innovation of technological tools such as genetically modified mouse models and single cell analysis. These highly plastic and heterogeneous cells equipped with multifaceted functions including the regulation of angiogenesis, inflammation as well as their innate stemness characteristics, play a central role in the delicately regulated process of wound healing. Fibroblast dysregulation underlies many chronic conditions, including cardiovascular diseases, cancer, inflammatory diseases, and diabetes mellitus (DM), which represent the current major causes of morbidity and mortality worldwide. Diabetic foot ulcer (DFU), one of the most severe complications of DM affects 40 to 60 million people. Chronic non-healing DFU wounds expose patients to substantial sequelae including infections, gangrene, amputation, and death. A complete understanding of the pathophysiology of DFU and targeting pathways involved in the dysregulation of fibroblasts are required for the development of innovative new therapeutic treatments, critically needed for these patients.
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Affiliation(s)
- Francesca A. Voza
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Carlos Theodore Huerta
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Nga Le
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Hongwei Shao
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Antoine Ribieras
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Yulexi Ortiz
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Carl Atkinson
- Department of Internal Medicine, Division of Pulmonary Critical Care & Sleep Medicine, University of Florida, Gainesville, FL 32611, USA;
| | - Tiago Machuca
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
| | - Zhao-Jun Liu
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Omaida C. Velazquez
- DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA; (F.A.V.); (C.T.H.); (H.S.); (A.R.); (Y.O.); (T.M.)
- Vascular Biology Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Yang JT, Wu D, Li J, Zhao C, Zhu L, Xu C, Xu N. An Injectable Composite Hydrogel of Verteporfin-Bonded Carboxymethyl Chitosan and Oxidized Sodium Alginate Facilitates Scarless Full-Thickness Skin Regeneration. Macromol Biosci 2024; 24:e2300165. [PMID: 37681479 DOI: 10.1002/mabi.202300165] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/22/2023] [Indexed: 09/09/2023]
Abstract
Full-thickness skin defect has always been a major challenge in clinics due to fibrous hyperplasia in the repair process. Hydrogel composite dressings loaded with anti-fibrotic drugs have been considered as a promising strategy for scarless skin regeneration. In this work, a hydrogel composite (VP-CMCS-OSA) of carboxymethyl chitosan (CMCS) and oxidized sodium alginate (OSA), with loading anti-fibrotic drug verteporfin (VP), is developed based on two-step chemical reactions. Verteporfin is bonded with carboxymethyl chitosan through EDC/NHS treatment to form VP-CMCS, and then VP-CMCS is crosslinked with oxidized sodium alginate by Schiff base reaction to form VP-CMCS-OSA hydrogel. The characterization by SEM, FTIR, and UV-Vis shows the microstructure and chemical bonding of VP-CMCS-OSA. VP-CMCS-OSA hydrogel demonstrates the properties of high tissue adhesion, strong self-healing, and tensile ability. In the full-thickness skin defect model, the VP-CMCS-OSA composite hydrogels hasten wound healing due to the synergistic effects of hydrogels and verteporfin administration. The histological examination reveals the regular collagen arrangement and more skin appendages after VP-CMCS-OSA composite hydrogel treatment, indicating the full-thickness skin regeneration without potential scar formation. The outcomes suggest that the verteporfin-loaded composite hydrogel could be a potential method for scarless skin regeneration.
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Affiliation(s)
- Jiang-Tao Yang
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Dingwei Wu
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Jianping Li
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Chenchen Zhao
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Lian Zhu
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Chengchen Xu
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Na Xu
- College of Life Sciences and Health, Institute of Biology and Medicine, Wuhan University of Science and Technology, Wuhan, 430065, China
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Guo Z, Yu Q, Huang W, Huang F, Chen X, Wei C. Discovering and Validating Cuproptosis-Associated Marker Genes for Accurate Keloid Diagnosis Through Multiple Machine Learning Models. Clin Cosmet Investig Dermatol 2024; 17:287-300. [PMID: 38314148 PMCID: PMC10838519 DOI: 10.2147/ccid.s440231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 01/22/2024] [Indexed: 02/06/2024]
Abstract
Background Keloid is a common condition characterized by abnormal scarring of the skin, affecting a significant number of individuals worldwide. Objective The occurrence of keloids may be related to the reduction of cell death. Recently, a new cell death mode that relies on copper ions has been discovered. This study aimed to identify novel cuproptosis-related genes that are associated with keloid diagnosis. Methods We utilized several gene expression datasets, including GSE44270 and GSE145725 as the training group, and GSE7890, GSE92566, and GSE121618 as the testing group. We integrated machine learning models (SVM, RF, GLM, and XGB) to identify 10 cuproptosis-related genes (CRGs) for keloid diagnosis in the training group. The diagnostic capability of the identified CRGs was validated using independent datasets, RT-qPCR, Western blotting, and IHC analysis. Results Our study successfully categorized keloid samples into two clusters based on the expression of cuproptosis-related genes. Utilizing WGCNA analysis, we identified 110 candidate genes associated with cuproptosis. Subsequent functional enrichment analysis results revealed that these genes may play a regulatory role in cell growth within keloid tissue through the MAPK pathway. By integrating machine learning models, we identified CRGs that can be used for diagnosing keloid. The diagnostic efficacy of CRGs was confirmed using independent datasets, RT-qPCR, Western blotting, and IHC analysis. GSVA analysis indicated that high expression of CRGs influenced the gene set related to ECM receptor interaction. Conclusion This study identified 10 cuproptosis-related genes that provide insights into the molecular mechanisms underlying keloid development and may have implications for the development of targeted therapies.
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Affiliation(s)
- Zicheng Guo
- Department of Orthopaedics, Huizhou First Hospital, Huizhou, People's Republic of China
- Department of Orthopaedics, Southern Medical University, Guangzhou, People's Republic of China
| | - Qingli Yu
- Department of Orthopaedics, Huizhou First Hospital, Huizhou, People's Republic of China
| | - Wencheng Huang
- Department of Orthopaedics, Huizhou First Hospital, Huizhou, People's Republic of China
| | - Fengyu Huang
- Department of Orthopaedics, Huizhou First Hospital, Huizhou, People's Republic of China
| | - Xiurong Chen
- Department of Orthopaedics, Huizhou First Hospital, Huizhou, People's Republic of China
| | - Chuzhong Wei
- Department of Orthopaedics, Huizhou First Hospital, Huizhou, People's Republic of China
- Department of Orthopaedics, Southern Medical University, Guangzhou, People's Republic of China
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14
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Pattani N, Sanghera J, Langridge BJ, Frommer ML, Abu-Hanna J, Butler P. Exploring the mechanisms behind autologous lipotransfer for radiation-induced fibrosis: A systematic review. PLoS One 2024; 19:e0292013. [PMID: 38271326 PMCID: PMC10810439 DOI: 10.1371/journal.pone.0292013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/11/2023] [Indexed: 01/27/2024] Open
Abstract
AIM Radiation-induced fibrosis is a recognised consequence of radiotherapy, especially after multiple and prolonged dosing regimens. There is no definitive treatment for late-stage radiation-induced fibrosis, although the use of autologous fat transfer has shown promise. However, the exact mechanisms by which this improves radiation-induced fibrosis remain poorly understood. We aim to explore existing literature on the effects of autologous fat transfer on both in-vitro and in-vivo radiation-induced fibrosis models, and to collate potential mechanisms of action. METHOD PubMed, Cochrane reviews and Scopus electronic databases from inception to May 2023 were searched. Our search strategy combined both free-text terms with Boolean operators, derived from synonyms of adipose tissue and radiation-induced fibrosis. RESULTS The search strategy produced 2909 articles. Of these, 90 underwent full-text review for eligibility, yielding 31 for final analysis. Nine conducted in-vitro experiments utilising a co-culture model, whilst 25 conducted in-vivo experiments. Interventions under autologous fat transfer included adipose-derived stem cells, stromal vascular function, whole fat and microfat. Notable findings include downregulation of fibroblast proliferation, collagen deposition, epithelial cell apoptosis, and proinflammatory processes. Autologous fat transfer suppressed hypoxia and pro-inflammatory interferon-γ signalling pathways, and tissue treated with adipose-derived stem cells stained strongly for anti-inflammatory M2 macrophages. Although largely proangiogenic initially, studies show varying effects on vascularisation. There is early evidence that adipose-derived stem cell subgroups may have different functional properties. CONCLUSION Autologous fat transfer functions through pro-angiogenic, anti-fibrotic, immunomodulatory, and extracellular matrix remodelling properties. By characterising these mechanisms, relevant drug targets can be identified and used to further improve clinical outcomes in radiation-induced fibrosis. Further research should focus on adipose-derived stem cell sub-populations and augmentation techniques such as cell-assisted lipotransfer.
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Affiliation(s)
| | | | - Benjamin J. Langridge
- Department of Plastic Surgery, Royal Free Hospital, London, United Kingdom
- Division of Surgery & Interventional Sciences, University College London, London, United Kingdom
- Charles Wolfson Centre for Reconstructive Surgery, Royal Free Hospital, London, United Kingdom
| | - Marvin L. Frommer
- Division of Surgery & Interventional Sciences, University College London, London, United Kingdom
- Charles Wolfson Centre for Reconstructive Surgery, Royal Free Hospital, London, United Kingdom
| | - Jeries Abu-Hanna
- Division of Surgery & Interventional Sciences, University College London, London, United Kingdom
- Charles Wolfson Centre for Reconstructive Surgery, Royal Free Hospital, London, United Kingdom
- Division of Medical Sciences, University of Oxford, Oxford, United Kingdom
| | - Peter Butler
- Department of Plastic Surgery, Royal Free Hospital, London, United Kingdom
- Division of Surgery & Interventional Sciences, University College London, London, United Kingdom
- Charles Wolfson Centre for Reconstructive Surgery, Royal Free Hospital, London, United Kingdom
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15
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Abbas DB, Griffin M, Fahy EJ, Spielman AF, Guardino NJ, Pu A, Lintel H, Lorenz HP, Longaker MT, Wan DC. Establishing a Xenograft Model with CD-1 Nude Mice to Study Human Skin Wound Repair. Plast Reconstr Surg 2024; 153:121-128. [PMID: 36988644 DOI: 10.1097/prs.0000000000010465] [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] [Indexed: 03/30/2023]
Abstract
BACKGROUND A significant gap exists in the translatability of small-animal models to human subjects. One important factor is poor laboratory models involving human tissue. Thus, the authors have created a viable postnatal human skin xenograft model using athymic mice. METHODS Discarded human foreskins were collected following circumcision. All subcutaneous tissue was removed from these samples sterilely. Host CD-1 nude mice were then anesthetized, and dorsal skin was sterilized. A 1.2-cm-diameter, full-thickness section of dorsal skin was excised. The foreskin sample was then placed into the full-thickness defect in the host mice and sutured into place. Xenografts underwent dermal wounding using a 4-mm punch biopsy after engraftment. Xenografts were monitored for 14 days after wounding and then harvested. RESULTS At 14 days postoperatively, all mice survived the procedure. Grossly, the xenograft wounds showed formation of a human scar at postoperative day 14. Hematoxylin and eosin and Masson trichome staining confirmed scar formation in the wounded human skin. Using a novel artificial intelligence algorithm using picrosirius red staining, scar formation was confirmed in human wounded skin compared with the unwounded skin. Histologically, CD31 + immunostaining confirmed vascularization of the xenograft. The xenograft exclusively showed human collagen type I, CD26 + , and human nuclear antigen in the human scar without any staining of these human markers in the murine skin. CONCLUSION The proposed model demonstrates wound healing to be a local response from tissue resident human fibroblasts and allows for reproducible evaluation of human skin wound repair in a preclinical model. CLINICAL RELEVANCE STATEMENT Radiation-induced fibrosis is a widely prevalent clinical phenomenon without a well-defined treatment at this time. This study will help establish a small-animal model to better understand and develop novel therapeutics to treat irradiated human skin.
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Affiliation(s)
- Darren B Abbas
- From the Hagey Laboratory for Pediatric Regenerative Medicine
| | | | - Evan J Fahy
- From the Hagey Laboratory for Pediatric Regenerative Medicine
| | | | | | - Adrian Pu
- From the Hagey Laboratory for Pediatric Regenerative Medicine
| | - Hendrik Lintel
- From the Hagey Laboratory for Pediatric Regenerative Medicine
| | - H Peter Lorenz
- From the Hagey Laboratory for Pediatric Regenerative Medicine
| | - Michael T Longaker
- From the Hagey Laboratory for Pediatric Regenerative Medicine
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine
| | - Derrick C Wan
- From the Hagey Laboratory for Pediatric Regenerative Medicine
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Illescas-Montes R, Rueda-Fernández M, González-Acedo A, Melguizo-Rodríguez L, García-Recio E, Ramos-Torrecillas J, García-Martínez O. Effect of Punicalagin and Ellagic Acid on Human Fibroblasts In Vitro: A Preliminary Evaluation of Their Therapeutic Potential. Nutrients 2023; 16:23. [PMID: 38201853 PMCID: PMC10781179 DOI: 10.3390/nu16010023] [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: 11/14/2023] [Revised: 12/04/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Pomegranate is a fruit that contains various phenolic compounds, including punicalagin and ellagic acid, which have been attributed to anti-inflammatory, antioxidant, and anticarcinogenic properties, among others. OBJECTIVE To evaluate the effect of punicalagin and ellagic acid on the viability, migration, cell cycle, and antigenic profile of cultured human fibroblasts (CCD-1064Sk). MTT spectrophotometry was carried out to determine cell viability, cell culture inserts were used for migration trials, and flow cytometry was performed for antigenic profile and cell cycle analyses. Cells were treated with each phenolic compound for 24 h at doses of 10-5 to 10-9 M. RESULTS Cell viability was always significantly higher in treated versus control cells except for punicalagin at 10-9 M. Doses of punicalagin and ellagic acid in subsequent assays were 10-6 M or 10-7 M, which increased the cell migration capacity and upregulated fibronectin and α-actin expression without altering the cell cycle. CONCLUSIONS These in vitro findings indicate that punicalagin and ellagic acid promote fibroblast functions that are involved in epithelial tissue healing.
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Affiliation(s)
- Rebeca Illescas-Montes
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (R.I.-M.); (M.R.-F.); (L.M.-R.); (O.G.-M.)
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
| | - Manuel Rueda-Fernández
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (R.I.-M.); (M.R.-F.); (L.M.-R.); (O.G.-M.)
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
| | - Anabel González-Acedo
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences of Melilla, University of Granada, C/Santander, 1, 52005 Melilla, Spain
| | - Lucía Melguizo-Rodríguez
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (R.I.-M.); (M.R.-F.); (L.M.-R.); (O.G.-M.)
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
| | - Enrique García-Recio
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences of Melilla, University of Granada, C/Santander, 1, 52005 Melilla, Spain
| | - Javier Ramos-Torrecillas
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (R.I.-M.); (M.R.-F.); (L.M.-R.); (O.G.-M.)
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
| | - Olga García-Martínez
- Biomedical Group (BIO277), Department of Nursing, Faculty of Health Sciences, University of Granada, Avda. Ilustración 60, 18016 Granada, Spain; (R.I.-M.); (M.R.-F.); (L.M.-R.); (O.G.-M.)
- Institute of Biosanitary Research, Ibs.Granada, C/Doctor Azpitarte 4, 18012 Granada, Spain; (A.G.-A.); (E.G.-R.)
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17
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Liang NE, Griffin MF, Berry CE, Parker JB, Downer MA, Wan DC, Longaker MT. Attenuating Chronic Fibrosis: Decreasing Foreign Body Response with Acellular Dermal Matrix. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:671-680. [PMID: 37212342 DOI: 10.1089/ten.teb.2023.0060] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Surgical implants are increasingly used across multiple medical disciplines, with applications ranging from tissue reconstruction to improving compromised organ and limb function. Despite their significant potential for improving health and quality of life, biomaterial implant function is severely limited by the body's immune response to its presence: this is known as the foreign body response (FBR) and is characterized by chronic inflammation and fibrotic capsule formation. This response can result in life-threatening sequelae such as implant malfunction, superimposed infection, and associated vessel thrombosis, in addition to soft tissue disfigurement. Patients may require frequent medical visits, as well as repeated invasive procedures, increasing the burden on an already strained health care system. Currently, the FBR and the cells and molecular mechanisms that mediate it are poorly understood. With applications across a wide array of surgical specialties, acellular dermal matrix (ADM) has emerged as a potential solution to the fibrotic reaction seen with FBR. Although the mechanisms by which ADM decreases chronic fibrosis remain to be clearly characterized, animal studies across diverse surgical models point to its biomimetic properties that facilitate decreased periprosthetic inflammation and improved host cell incorporation. Impact Statement Foreign body response (FBR) is a significant limitation to the use of implantable biomaterials. Acellular dermal matrix (ADM) has been observed to decrease the fibrotic reaction seen with FBR, although its mechanistic details are poorly understood. This review is dedicated to summarizing the primary literature on the biology of FBR in the context of ADM use, using surgical models in breast reconstruction, abdominal and chest wall repair, and pelvic reconstruction. This article will provide readers with an overarching review of shared mechanisms for ADM across multiple surgical models and diverse anatomical applications.
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Affiliation(s)
- Norah E Liang
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Michelle F Griffin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Charlotte E Berry
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Jennifer B Parker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Mauricio A Downer
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Derrick C Wan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Michael T Longaker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
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18
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Berry CE, Longaker MT, Wan DC. Commentary on: Postoperative Mechanomodulation Decreases T-Junction Dehiscence After Reduction Mammaplasty: Early Scar Analysis From a Randomized Controlled Trial. Aesthet Surg J 2023; 43:NP1049-NP1051. [PMID: 37625787 DOI: 10.1093/asj/sjad281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
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19
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Itai E, Atsugi T, Inomata K, Yamashita M, Kaji K, Nanba D, Naru E. Single-cell analysis of human dermal fibroblasts isolated from a single male donor over 35 years. Exp Dermatol 2023; 32:1982-1995. [PMID: 37727050 DOI: 10.1111/exd.14929] [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: 08/09/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 09/21/2023]
Abstract
The aim of this study is to examine the effects of ageing on dermal fibroblast heterogeneity based on samples obtained from the same donor. We used a dermal fibroblast lineage (named ASF-4 cell lines) isolated from the inner side of the upper arm of a healthy male donor over a 35-year period, beginning at 36 years of age. Because clonal analysis of ASF-4 cell lines demonstrated a donor age-dependent loss of proliferative capacity and acquisition of senescent traits at the single-cell level, cultured cells frozen at passage 10 at ages 36 and 72 years were subjected to single-cell RNA sequencing. Transcriptome analysis revealed an increase in senescent fibroblasts and downregulation of genes associated with extracellular matrix remodelling with ageing. In addition, two putative differentiation pathways, with one endpoint consisting of senescent fibroblasts and the other without, were speculated using a pseudo-time analysis. Knockdown of the characteristic gene of the non-senescent fibroblast cluster endpoint, EFEMP2, accelerated cellular senescence. This was also confirmed in two other normal human dermal fibroblast cell lines. The detection of a common cellular senescence-related gene from single-donor analysis is notable. This study provides new insights into the behaviour of dermal fibroblasts during skin ageing.
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Affiliation(s)
- Eriko Itai
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Toru Atsugi
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Ken Inomata
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | | | - Kazuhiko Kaji
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Daisuke Nanba
- Division of Aging and Regeneration, The Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Eiji Naru
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
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20
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Phan QM, Salz L, Kindl SS, Lopez JS, Thompson SM, Makkar J, Driskell IM, Driskell RR. Lineage commitment of dermal fibroblast progenitors is controlled by Kdm6b-mediated chromatin demethylation. EMBO J 2023; 42:e113880. [PMID: 37602956 PMCID: PMC10548174 DOI: 10.15252/embj.2023113880] [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: 03/02/2023] [Revised: 07/26/2023] [Accepted: 08/01/2023] [Indexed: 08/22/2023] Open
Abstract
Dermal Fibroblast Progenitors (DFPs) differentiate into distinct fibroblast lineages during skin development. However, the epigenetic mechanisms that regulate DFP differentiation are not known. Our objective was to use multimodal single-cell approaches, epigenetic assays, and allografting techniques to define a DFP state and the mechanism that governs its differentiation potential. Our initial results indicated that the overall transcription profile of DFPs is repressed by H3K27me3 and has inaccessible chromatin at lineage-specific genes. Surprisingly, the repressive chromatin profile of DFPs renders them unable to reform the skin in allograft assays despite their multipotent potential. We hypothesized that chromatin derepression was modulated by the H3K27me3 demethylase, Kdm6b/Jmjd3. Dermal fibroblast-specific deletion of Kdm6b/Jmjd3 in mice resulted in adipocyte compartment ablation and inhibition of mature dermal papilla functions, confirmed by additional single-cell RNA-seq, ChIP-seq, and allografting assays. We conclude that DFPs are functionally derepressed during murine skin development by Kdm6b/Jmjd3. Our studies therefore reveal a multimodal understanding of how DFPs differentiate into distinct fibroblast lineages and provide a novel publicly available multiomics search tool.
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Affiliation(s)
- Quan M Phan
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
| | - Lucia Salz
- North Rhine‐Westphalia Technical University of AachenAachenGermany
| | - Sam S Kindl
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
| | - Jayden S Lopez
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
| | - Sean M Thompson
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
| | - Jasson Makkar
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
| | - Iwona M Driskell
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
| | - Ryan R Driskell
- School of Molecular BiosciencesWashington State UniversityPullmanWAUSA
- Center for Reproductive BiologyWashington State UniversityPullmanWAUSA
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21
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Ahn GR, Jang YN, Lee SY, Kim WJ, Han HS, Yoo KH, Bae TH, Barn J, Seok J, Kim BJ. Full-thickness skin rejuvenation by a novel dual-length microneedle radiofrequency device: A proof-of-concept study using human skin. Lasers Surg Med 2023; 55:758-768. [PMID: 37548075 DOI: 10.1002/lsm.23707] [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: 04/10/2023] [Revised: 06/05/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND A novel dual-length microneedle radiofrequency (DLMR) device has been developed to achieve full-thickness skin rejuvenation by stimulating the papillary and reticular dermis simultaneously. This device's dual-level targeting concept need to be validated on human skin, although its clinical efficacy has been demonstrated in a previous study. OBJECTIVES This study evaluated the dual-depth targeting capability and the ability to induce rejuvenation in each layer of vertical skin anatomy, that is, the epidermis, papillary dermis, and reticular dermis, using full-thickness human facial skin samples. METHODS Human facial skin samples were obtained from 13 Asian patients who had facelift surgery. To validate the dual-depth targeting concept, DMLR-treated skin samples were analyzed using a digital microscope, thermal imaging, and hematoloxylin and eosin (H&E) staining immediately after DLMR application. On samples stained with H&E, Masson's tricrome, and Verhoeff-Van Gieson, histological observation and morphometric analysis were performed. Total collagen assay (TCA) and quantitative real-time polymerase chain reaction (qPCR) were used to assess changes in total collagen content and mRNA expression levels of collagen types I/III and vimentin, respectively. RESULTS The DLMR device successfully induced thermal stimulation in the papillary and reticular dermis. The thickness, stacks, and dermal-epidermal junction convolution of the epidermis treated with DLMR were significantly increased. Collagen bundles in the dermis treated with DLMR exhibited a notable increase in thickness, density, and horizontal alignment. Dermal collagen levels were significantly higher in the morphometric and TCA data, as well as in the qPCR data for dermal matrix proteins. CONCLUSIONS Our DLMR device independently and precisely targeted the papillary and reticular dermis, and it appears to be an effective modality for implementing full-thickness rejuvenation.
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Affiliation(s)
- Ga Ram Ahn
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, South Korea
- Department of Dermatology, Chung-Ang University Hospital, Seoul, South Korea
| | - You Na Jang
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, South Korea
| | - So Young Lee
- Department of Dermatology, Chung-Ang University Hospital, Seoul, South Korea
| | - Woo Ju Kim
- Department of Plastic Surgery, Chung-Ang University Gwangmyeong Hospital, Seoul, South Korea
| | - Hye Sung Han
- Department of Dermatology, Chung-Ang University Gwangmyeong Hospital, Seoul, South Korea
| | - Kwang Ho Yoo
- Department of Dermatology, Chung-Ang University Gwangmyeong Hospital, Seoul, South Korea
| | - Tae Hui Bae
- Department of Plastic Surgery, Chung-Ang University Gwangmyeong Hospital, Seoul, South Korea
| | | | - Joon Seok
- Department of Dermatology, Chung-Ang University Hospital, Seoul, South Korea
| | - Beom Joon Kim
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, South Korea
- Department of Dermatology, Chung-Ang University Hospital, Seoul, South Korea
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22
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Srivastava R, Singh K, Abouhashem AS, Kumar M, Kacar S, Verma SS, Mohanty SK, Sinha M, Ghatak S, Xuan Y, Sen CK. Human fetal dermal fibroblast-myeloid cell diversity is characterized by dominance of pro-healing Annexin1-FPR1 signaling. iScience 2023; 26:107533. [PMID: 37636079 PMCID: PMC10450526 DOI: 10.1016/j.isci.2023.107533] [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: 06/08/2022] [Revised: 06/06/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
Fetal skin achieves scarless wound repair. Dermal fibroblasts play a central role in extracellular matrix deposition and scarring outcomes. Both fetal and gingival wound repair share minimal scarring outcomes. We tested the hypothesis that compared to adult skin fibroblasts, human fetal skin fibroblast diversity is unique and partly overlaps with gingival skin fibroblasts. Human fetal skin (FS, n = 3), gingiva (HGG, n = 13), and mature skin (MS, n = 13) were compared at single-cell resolution. Dermal fibroblasts, the most abundant cluster, were examined to establish a connectome with other skin cells. Annexin1-FPR1 signaling pathway was dominant in both FS as well as HGG fibroblasts and related myeloid cells while scanty in MS fibroblasts. Myeloid-specific FPR1-ORF delivered in murine wound edge using tissue nanotransfection (TNT) technology significantly enhanced the quality of healing. Pseudotime analyses identified the co-existence of an HGG fibroblast subset with FPR1high myeloid cells of fetal origin indicating common underlying biological processes.
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Affiliation(s)
- Rajneesh Srivastava
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kanhaiya Singh
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Ahmed S. Abouhashem
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
- Sharkia Clinical Research Department, Ministry of Health, Zagazig, Egypt
| | - Manishekhar Kumar
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sedat Kacar
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sumit S. Verma
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sujit K. Mohanty
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mithun Sinha
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Subhadip Ghatak
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Yi Xuan
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chandan K. Sen
- McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN, USA
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23
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Knoedler S, Broichhausen S, Guo R, Dai R, Knoedler L, Kauke-Navarro M, Diatta F, Pomahac B, Machens HG, Jiang D, Rinkevich Y. Fibroblasts - the cellular choreographers of wound healing. Front Immunol 2023; 14:1233800. [PMID: 37646029 PMCID: PMC10461395 DOI: 10.3389/fimmu.2023.1233800] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/28/2023] [Indexed: 09/01/2023] Open
Abstract
Injuries to our skin trigger a cascade of spatially- and temporally-synchronized healing processes. During such endogenous wound repair, the role of fibroblasts is multifaceted, ranging from the activation and recruitment of innate immune cells through the synthesis and deposition of scar tissue to the conveyor belt-like transport of fascial connective tissue into wounds. A comprehensive understanding of fibroblast diversity and versatility in the healing machinery may help to decipher wound pathologies whilst laying the foundation for novel treatment modalities. In this review, we portray the diversity of fibroblasts and delineate their unique wound healing functions. In addition, we discuss future directions through a clinical-translational lens.
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Affiliation(s)
- Samuel Knoedler
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
- Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT, United States
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, Munich, Germany
| | - Sonja Broichhausen
- Department of Hand, Plastic and Reconstructive Surgery, Microsurgery, Burn Trauma Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Ruiji Guo
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, Munich, Germany
| | - Ruoxuan Dai
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, Munich, Germany
| | - Leonard Knoedler
- Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Martin Kauke-Navarro
- Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Fortunay Diatta
- Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Bohdan Pomahac
- Division of Plastic Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT, United States
| | - Hans-Guenther Machens
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Dongsheng Jiang
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, Munich, Germany
| | - Yuval Rinkevich
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, Munich, Germany
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24
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Parker JB, Valencia C, Akras D, DiIorio SE, Griffin MF, Longaker MT, Wan DC. Understanding Fibroblast Heterogeneity in Form and Function. Biomedicines 2023; 11:2264. [PMID: 37626760 PMCID: PMC10452440 DOI: 10.3390/biomedicines11082264] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Historically believed to be a homogeneous cell type that is often overlooked, fibroblasts are more and more understood to be heterogeneous in nature. Though the mechanisms behind how fibroblasts participate in homeostasis and pathology are just beginning to be understood, these cells are believed to be highly dynamic and play key roles in fibrosis and remodeling. Focusing primarily on fibroblasts within the skin and during wound healing, we describe the field's current understanding of fibroblast heterogeneity in form and function. From differences due to embryonic origins to anatomical variations, we explore the diverse contributions that fibroblasts have in fibrosis and plasticity. Following this, we describe molecular techniques used in the field to provide deeper insights into subpopulations of fibroblasts and their varied roles in complex processes such as wound healing. Limitations to current work are also discussed, with a focus on future directions that investigators are recommended to take in order to gain a deeper understanding of fibroblast biology and to develop potential targets for translational applications in a clinical setting.
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Affiliation(s)
- Jennifer B. Parker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Caleb Valencia
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
| | - Deena Akras
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
| | - Sarah E. DiIorio
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michelle F. Griffin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
| | - Michael T. Longaker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
| | - Derrick C. Wan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA (M.F.G.)
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25
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Fraczek W, Kregielewski K, Wierzbicki M, Krzeminski P, Zawadzka K, Szczepaniak J, Grodzik M. A Comprehensive Assessment of the Biocompatibility and Safety of Diamond Nanoparticles on Reconstructed Human Epidermis. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5600. [PMID: 37629892 PMCID: PMC10456456 DOI: 10.3390/ma16165600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Diamond nanoparticles, also known as nanodiamonds (NDs), exhibit remarkable, awe-inspiring properties that make them suitable for various applications in the field of skin care products. However, a comprehensive assessment of their compatibility with human skin, according to the irritation criteria established by the Organization for Economic Cooperation and Development (OECD), has not yet been conducted. The purpose of this study was to evaluate if diamond nanoparticles at a concentration of 25 μg/mL, incubated with reconstituted human epidermis (EpiDermTM) for 18 h, conform to the OECD TG439 standard used to classify chemical irritants. For this purpose, a cell viability test (MTT assay), histological assessment, and analysis of pro-inflammatory cytokine expression were performed. The results indicated that NDs had no toxic effect at the tested concentration. They also did not adversely affect tissue structure and did not lead to a simultaneous increase in protein and mRNA expression of the analyzed cytokines. These results confirm the safety and biocompatibility of NDs for application in skincare products, thereby creating a wide range of possibilities to exert an impact on the advancement of contemporary cosmetology in the future.
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Affiliation(s)
- Wiktoria Fraczek
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland; (W.F.); (M.W.); (P.K.); (K.Z.)
| | - Kacper Kregielewski
- Faculty of Biology and Biotechnology, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland;
| | - Mateusz Wierzbicki
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland; (W.F.); (M.W.); (P.K.); (K.Z.)
| | - Patryk Krzeminski
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland; (W.F.); (M.W.); (P.K.); (K.Z.)
| | - Katarzyna Zawadzka
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland; (W.F.); (M.W.); (P.K.); (K.Z.)
| | - Jaroslaw Szczepaniak
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland;
| | - Marta Grodzik
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences (WULS-SGGW), 02-787 Warsaw, Poland; (W.F.); (M.W.); (P.K.); (K.Z.)
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26
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Chen K, Liu Y, Liu X, Guo Y, Liu J, Ding J, Zhang Z, Ni X, Chen Y. Hyaluronic acid-modified and verteporfin-loaded polylactic acid nanogels promote scarless wound healing by accelerating wound re-epithelialization and controlling scar formation. J Nanobiotechnology 2023; 21:241. [PMID: 37496007 PMCID: PMC10369727 DOI: 10.1186/s12951-023-02014-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/19/2023] [Indexed: 07/28/2023] Open
Abstract
Wound healing is a common occurrence. However, delayed healing and aberrant scarring result in pathological wound healing. Accordingly, a scarless wound healing remains a significant clinical challenge. In this study, we constructed hyaluronic acid (HA)-modified and verteporfin (VP)-loaded polylactic acid (PLA) nanogels (HA/VP-PLA) to promote scarless wound healing by accelerating wound re-epithelialization and controlling scar formation. Owing to the unique structure of HA incorporating and coating in VP-loaded PLA nanoparticles, HA/VP-PLA could be topically applied on wound to achieve targeted delivery to fibroblasts. Then, HA/VP-PLA released HA and lactic acid (LA) to stimulate the proliferation and migration of fibroblasts, as well as VP to inhibit Yes-associated protein (YAP) expression and nuclear localization to suppress fibrosis. In vitro (skin fibroblasts) and in vivo (rat and rabbit models) experiments strongly suggested that HA/VP-PLA promoted scarless wound healing by accelerating wound re-epithelialization and controlling scar formation. Therefore, our work provides a feasible strategy for scarless wound healing, and the sophisticated HA/VP-PLA exhibit a great potential for clinical applications.
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Affiliation(s)
- Kun Chen
- Department of Burn and Plastic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Yuanhu Liu
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children' s Hospital, Capital Medical University, National Center for Children' s Health, Beijing, 100045, China
- Shunyi Maternal and Children's Hospital of Beijing Children's Hospital, Beijing, China
| | - Xiaohui Liu
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children' s Hospital, Capital Medical University, National Center for Children' s Health, Beijing, 100045, China
| | - Yongli Guo
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jing Liu
- Department of Burn and Plastic Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jiaojiao Ding
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children' s Hospital, Capital Medical University, National Center for Children' s Health, Beijing, 100045, China
| | - Zheng Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Xin Ni
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children' s Hospital, Capital Medical University, National Center for Children' s Health, Beijing, 100045, China.
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
| | - Yunsheng Chen
- Department of Burn, Shanghai Burn Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, China.
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27
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Yue Y, Yang J, Lu S, Ge J, Nie H, Liu K, Liu F, Li H, Yan H, Zhang T, Sun P, Sun H, Yang J, Zhou J, Cui Y. Simulated microgravity altered the proliferation, apoptosis, and extracellular matrix formation of L929 fibroblasts and the transforming growth factor-β1/Smad3 signaling pathway. Skin Res Technol 2023; 29:e13341. [PMID: 37231921 PMCID: PMC10167414 DOI: 10.1111/srt.13341] [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: 03/10/2023] [Accepted: 04/12/2023] [Indexed: 05/27/2023]
Abstract
Exposure to microgravity can adversely affect the fitness of astronauts. The integrity of the skin plays a crucial role in protecting against mechanical forces and infections, fluid imbalance, and thermal dysregulation. In brief, the skin wound may cause unknown challenges to the implementation of space missions. Wound healing is a physiological process that relies on the synergistic action of inflammatory cells, extracellular matrix (ECM), and various growth factors to maintain the integrity of skin after trauma. Fibroblasts are present almost throughout the entire process of wound repair, especially in the scar formation at the endpoint of wound healing. However, there is limited knowledge about the extent to which fibroblasts are affected by the lack of gravity during wound healing. In this study, we utilized the rotary cell culture system, a ground-based facility that mimics the weightless condition, to study the alterations of L929 fibroblast cells under simulated microgravity (SMG). Our results demonstrated that the SM condition exerted negative influences on the proliferation and ECM formation of the L929 fibroblast. Whereas, the apoptosis of fibroblast was significantly upregulated upon exposure to SMG conditions. Moreover, the transforming growth factor-β1/Smad3 (TGF-β1/smad3) signaling pathway of L929 fibroblast related to wound repair was also altered significantly under a weightless environment. Overall, our study provided evidence that fibroblasts are strongly sensitive to SMG and elucidated the potential value of the TGF-β1/Smad3 signaling pathway modulating wound healing in the future practice of space medicine.
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Affiliation(s)
- Yuan Yue
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Jia‐Qi Yang
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Sheng‐Yu Lu
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Jun Ge
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Hong‐Yun Nie
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
| | - Kai‐Ge Liu
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Fei Liu
- Department of General SurgeryFuyang Tumor HospitalFuyangChina
| | - Hao Li
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Hong‐Feng Yan
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Tao Zhang
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Pei‐Ming Sun
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Hong‐Wei Sun
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Jian‐Wu Yang
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
| | - Jin‐Lian Zhou
- Department of PathologyStrategic Support Force Medical CenterBeijingChina
| | - Yan Cui
- Department of General SurgeryThe 306th Hospital of PLA‐Peking University Teaching HospitalBeijingChina
- Department of General SurgeryStrategic Support Force Medical CenterBeijingChina
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28
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Huang Y, Zhao H, Zhang Y, Tang Y, Shi X, Jiang S, Pu W, Liu J, Ma Y, Lin J, Lin J, Wu W, Gong Y, Wang J, Liu Q. Enhancement of Zyxin Promotes Skin Fibrosis by Regulating FAK/PI3K/AKT and TGF-β Signaling Pathways via Integrins. Int J Biol Sci 2023; 19:2394-2408. [PMID: 37215989 PMCID: PMC10197900 DOI: 10.7150/ijbs.77649] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 04/05/2023] [Indexed: 05/24/2023] Open
Abstract
Skin fibrosis is a common pathological manifestation in systemic sclerosis (SSc), keloid, and localized scleroderma (LS) characterized by fibroblast activation and excessive extracellular matrix (ECM) deposition. However, few effective drugs are available to treat skin fibrosis due to its unclear mechanisms. In our study, we reanalyzed skin RNA-sequencing data of Caucasian, African, and Hispanic SSc patients from the Gene Expression Omnibus (GEO) database. We found that the focal adhesion pathway was up-regulated and Zyxin appeared to be the primary focal adhesion protein involved in skin fibrosis, and we further verified its expression in Chinese skin tissues of several fibrotic diseases, including SSc, keloid, and LS. Moreover, we found Zyxin inhibition could significantly alleviate skin fibrosis using Zyxin knock-down and knock-out mice, nude mouse model and skin explants of human keloid. Double immunofluorescence staining showed that Zyxin was highly expressed in fibroblasts. Further analysis revealed pro-fibrotic gene expression and collagen production increased in Zyxin over-expressed fibroblasts, and decreased in Zyxin interfered SSc fibroblasts. In addition, transcriptome and cell culture analyses revealed Zyxin inhibition could effectively attenuate skin fibrosis by regulating the FAK/PI3K/AKT and TGF-β signaling pathways via integrins. These results suggest Zyxin appears a potential new therapeutic target for skin fibrosis.
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Affiliation(s)
- Yan Huang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Han Zhao
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
- Nanjing Intellectual Property Protection Center, Nanjing, China
| | - Yuting Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Yulong Tang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Xiangguang Shi
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
| | - Shuai Jiang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Weilin Pu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jing Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
- Institute for Six-sector Economy, Fudan University, Shanghai, China
| | - Yanyun Ma
- Institute for Six-sector Economy, Fudan University, Shanghai, China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Juiming Lin
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
| | - Jinran Lin
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
| | - Wenyu Wu
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
- Department of Dermatology, Jing' an District Central Hospital, Shanghai, China
| | - Yiyi Gong
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, and Human Phenome Institute, Fudan University, Shanghai, China
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
- Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058), Chinese Academy of Medical Sciences, Beijing, China
| | - Qingmei Liu
- Division of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology Shanghai, China
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
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29
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Griffin MF, Talbott HE, Guardino NJ, Guo JL, Spielman AF, Chen K, Parker JBL, Mascharak S, Henn D, Liang N, King M, Cotterell AC, Bauer-Rowe KE, Abbas DB, Diaz Deleon NM, Sivaraj D, Fahy EJ, Downer M, Akras D, Berry C, Cook J, Quarto N, Klein OD, Lorenz HP, Gurtner GC, Januszyk M, Wan DC, Longaker MT. Piezo inhibition prevents and rescues scarring by targeting the adipocyte to fibroblast transition. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.03.535302. [PMID: 37066136 PMCID: PMC10103999 DOI: 10.1101/2023.04.03.535302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
While past studies have suggested that plasticity exists between dermal fibroblasts and adipocytes, it remains unknown whether fat actively contributes to fibrosis in scarring. We show that adipocytes convert to scar-forming fibroblasts in response to Piezo -mediated mechanosensing to drive wound fibrosis. We establish that mechanics alone are sufficient to drive adipocyte-to- fibroblast conversion. By leveraging clonal-lineage-tracing in combination with scRNA-seq, Visium, and CODEX, we define a "mechanically naïve" fibroblast-subpopulation that represents a transcriptionally intermediate state between adipocytes and scar-fibroblasts. Finally, we show that Piezo1 or Piezo2 -inhibition yields regenerative healing by preventing adipocytes' activation to fibroblasts, in both mouse-wounds and a novel human-xenograft-wound model. Importantly, Piezo1 -inhibition induced wound regeneration even in pre-existing established scars, a finding that suggests a role for adipocyte-to-fibroblast transition in wound remodeling, the least-understood phase of wound healing. Adipocyte-to-fibroblast transition may thus represent a therapeutic target for minimizing fibrosis via Piezo -inhibition in organs where fat contributes to fibrosis.
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Nosrati F, Grillari J, Azarnia M, Nabiuni M, Moghadasali R, Karimzadeh L, Lämmermann I. The expression of fibrosis-related genes is elevated in doxorubicin-induced senescent human dermal fibroblasts, but their secretome does not trigger a paracrine fibrotic response in non-senescent cells. Biogerontology 2023; 24:293-301. [PMID: 36648709 PMCID: PMC10006027 DOI: 10.1007/s10522-022-10013-y] [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: 10/05/2022] [Accepted: 11/08/2022] [Indexed: 01/18/2023]
Abstract
Tissue fibrosis is associated with the aging process of most of our organs, and organ aging correlates with the chronic accumulation of senescent cells. Fibrosis occurs when fibroblasts proliferate and deposit pathological amounts of extracellular matrix (ECM), leading to progressive tissue scarring and organ dysfunction. Fibroblasts play a key role in fibrosis, especially in the skin where fibroblasts are the most abundant cell type in the dermis and are mainly responsible for the synthesis of ECM. This study aims to investigate how senescent fibroblasts and their secretome influence dermal fibrosis. Here we used human dermal fibroblasts (HDFs) treated with doxorubicin (doxo) to induce senescence. The senescent phenotype of these stress-induced premature senescent (SIPS) cells was confirmed with several markers. The expression of pro-fibrotic genes was quantified and finally, the impact of their secretome on the fibrotic response of non-senescent fibroblasts was assessed. Doxorubicin treatment, induced senescence in fibroblasts which has been confirmed with elevated senescence-associated β- galactosidase (SA-β-gal) activity, absence of BrdU incorporation, upregulation of p21, and loss of Lamin b1. Expression levels of the pro-fibrotic genes ACTA2 and FN1 increased in SIPS cells, but in contrast to studies using lung fibroblasts the secretome of these cells failed to induce a paracrine fibrotic response in non-senescent cells. In general, these results suggest that these senescent cells are potentially profibrotic, and their accumulation can trigger fibrosis in organs.
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Affiliation(s)
- Fariba Nosrati
- Department of Animal Biology, Faculty of Biological Science, Kharazmi University, Tehran, Iran
- Department of Biotechnology, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, 1190, Vienna, Austria
| | - Johannes Grillari
- Department of Biotechnology, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, 1190, Vienna, Austria.
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria.
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Mahnaz Azarnia
- Department of Animal Biology, Faculty of Biological Science, Kharazmi University, Tehran, Iran.
| | - Mohammad Nabiuni
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Reza Moghadasali
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Latifeh Karimzadeh
- Department of Animal Biology, Faculty of Biological Science, Kharazmi University, Tehran, Iran
| | - Ingo Lämmermann
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Rockfish Bio AG, Vienna, Austria
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31
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Soboleva AG, Sobolev VV, Karapetyan MM, Mezentsev A, Rud’ko OI, Davydova ED, Mogulevtseva JA, Zhukova OV, Korsunskaya IM. Laser Therapy Changes the Expression of Matrix Metalloproteinases in Bleomycin-Induced Skin Fibrosis. Life (Basel) 2023; 13:life13030810. [PMID: 36983965 PMCID: PMC10056988 DOI: 10.3390/life13030810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/05/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Matrix metalloproteinases (MMPs) are often considered biomarkers of skin fibrosis. At the early stages of the pathological process, an elevation of their enzymatic activity causes significant changes in the composition of the extracellular matrix. MMPs secreted by immune cells facilitate their migration to the site of damage. Then, the immune cells eliminate the affected cells and biomolecules. Moreover, bidirectional changes in the activity of proteolytic enzymes, including MMPs, accompany wound healing. This study aimed to assess changes in the expression of Mmp2, Mmp3, and Mmp9 after treating mice with laser therapy using the experimental model of bleomycin-induced skin fibrosis. Using immunohistochemistry, we characterized the histological features of scarred skin. We also analyzed changes in the expression of MMPs using real-time polymerase chain reaction before and after laser irradiation. We showed that treatment of the mice with a CO2 laser partially normalized the histological features of scarred skin. We also noticed a decrease in the expression of Mmp2, Mmp3 (both p < 0.05), and Mmp9 (p = 0.065) during scar healing. The obtained results suggest that normalization of skin homeostasis requires control of MMP activity via induction of genes.
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Affiliation(s)
- Anna G. Soboleva
- Center for Theoretical Problems in Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednaya Kalitnikovskaya Street, 109029 Moscow, Russia
- Avtsyn Research Institute of Human Morphology of Petrovsky National Research Centre of Surgery, 3 Tsyurupy Street, 117418 Moscow, Russia
| | - Vladimir V. Sobolev
- Center for Theoretical Problems in Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednaya Kalitnikovskaya Street, 109029 Moscow, Russia
- Correspondence:
| | | | - Alexandre Mezentsev
- Center for Theoretical Problems in Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednaya Kalitnikovskaya Street, 109029 Moscow, Russia
| | - Olga I. Rud’ko
- Faculty of Biology, M.V. Lomonosov Moscow State University, 1-12 Leninskie Gory, 119991 Moscow, Russia
| | | | - Julia A. Mogulevtseva
- Department of Agronomy and Biotechnology, Russian Agrarian University (Moscow Timiryazev Agricultural Academy), 49 Timiryazeva Street, 127550 Moscow, Russia
| | - Olga V. Zhukova
- Moscow Center of Dermatology and Cosmetology, 17 Leninsky Avenue, 119071 Moscow, Russia
| | - Irina M. Korsunskaya
- Center for Theoretical Problems in Physico-Chemical Pharmacology, Russian Academy of Sciences, 30 Srednaya Kalitnikovskaya Street, 109029 Moscow, Russia
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32
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Phan QM, Salz L, Kindl SS, Lopez JS, Thompson SM, Makkar J, Driskell IM, Driskell RR. Lineage Commitment of Dermal Fibroblast Progenitors is Mediated by Chromatin De-repression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.07.531478. [PMID: 36945417 PMCID: PMC10028926 DOI: 10.1101/2023.03.07.531478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Dermal Fibroblast Progenitors (DFPs) differentiate into distinct fibroblast lineages during skin development. However, the mechanisms that regulate lineage commitment of naive dermal progenitors to form niches around the hair follicle, dermis, and hypodermis, are unknown. In our study, we used multimodal single-cell approaches, epigenetic assays, and allografting techniques to define a DFP state and the mechanisms that govern its differentiation potential. Our results indicate that the overall chromatin profile of DFPs is repressed by H3K27me3 and has inaccessible chromatin at lineage specific genes. Surprisingly, the repressed chromatin profile of DFPs renders them unable to reform skin in allograft assays despite their multipotent potential. Distinct fibroblast lineages, such as the dermal papilla and adipocytes contained specific chromatin profiles that were de-repressed during late embryogenesis by the H3K27-me3 demethylase, Kdm6b/Jmjd3. Tissue-specific deletion of Kdm6b/Jmjd3 resulted in ablating the adipocyte compartment and inhibiting mature dermal papilla functions in single-cell-RNA-seq, ChIPseq, and allografting assays. Altogether our studies reveal a mechanistic multimodal understanding of how DFPs differentiate into distinct fibroblast lineages, and we provide a novel multiomic search-tool within skinregeneration.org.
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Affiliation(s)
- Quan M. Phan
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Lucia Salz
- North Rhine-Westphalia Technical University of Aachen, Aachen, Germany
| | - Sam S. Kindl
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Jayden S. Lopez
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Sean M. Thompson
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Jasson Makkar
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Iwona M. Driskell
- School of Molecular Biosciences, Washington State University, Pullman, WA
| | - Ryan R. Driskell
- School of Molecular Biosciences, Washington State University, Pullman, WA
- Center for Reproductive Biology, Washington State University, Pullman, WA
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33
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Spielman AF, Griffin MF, Parker J, Cotterell AC, Wan DC, Longaker MT. Beyond the Scar: A Basic Science Review of Wound Remodeling. Adv Wound Care (New Rochelle) 2023; 12:57-67. [PMID: 35658581 DOI: 10.1089/wound.2022.0049] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Significance: Increasing development of experimental animal models has allowed for the study of scar formation. However, many pathophysiological unknowns remain in the longest stage of healing, the remodeling stage, which may continue for a year or more. The wound healing process results in different types of scarring classified as normal or pathological depending on failures at each stage. Failures can also occur during wound remodeling, but the molecular mechanisms driving the wound remodeling process have yet to be investigated. Recent Advances: While the current understanding of wound repair is based on investigations of acute healing, these experimental models have informed knowledge of key components of remodeling. This review examines the components that contribute to collagen organization and the final scar, including cell types, their regulation, and signaling pathways. Dysregulation in any one of these components causes pathologic healing. Critical Issues and Future Directions: As wounds continue to remodel months to years after reepithelialization, new models to better understand long-term remodeling will be critical for improving healing outcomes. Further investigation of the contributions of fibroblasts and cell signaling pathways involved during remodeling as well as their potential failures may inform new approaches in promoting regenerative healing beyond reepithelialization.
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Affiliation(s)
- Amanda F Spielman
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University, Stanford, California, USA
| | - Michelle F Griffin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University, Stanford, California, USA
| | - Jennifer Parker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University, Stanford, California, USA.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Asha C Cotterell
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University, Stanford, California, USA
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University, Stanford, California, USA
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Stanford University, Stanford, California, USA.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
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Parker JB, Griffin MF, Spielman AF, Wan DC, Longaker MT. Exploring the Overlooked Roles and Mechanisms of Fibroblasts in the Foreign Body Response. Adv Wound Care (New Rochelle) 2023; 12:85-96. [PMID: 35819293 PMCID: PMC10081717 DOI: 10.1089/wound.2022.0066] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/06/2022] [Indexed: 11/12/2022] Open
Abstract
Significance: Foreign body response (FBR), wherein a fibrotic capsule forms around an implanted structure, is a common surgical complication that often leads to pain, discomfort, and eventual revision surgeries. Although believed to have some mechanistic overlap with normal wound healing, much remains to be discovered about the specific mechanism by which this occurs. Recent Advances: Current understanding of FBR has focused on the roles of the immune system and the biomaterial, both major contributors to FBR. However, another key player, the fibroblast, is often overlooked. This review summarizes key contributors of FBR, focusing on the roles of fibroblasts. As much remains to be discovered about fibroblasts' specific roles in FBR, we draw on current knowledge of fibroblast subpopulations and functions during wound healing. We also provide an overview on candidate biomaterials and signaling pathways involved in FBR. Critical Issues and Future Directions: While the global implantable medical devices market is considerable and continues to appreciate in value, FBR remains one of the most common surgical implant complications. In parallel with the continued development of candidate biomaterials, further exploration of potential fibroblast subpopulations at a transcriptional level would provide key insights into further understanding the underlying mechanisms by which fibrous encapsulation occurs, and unveil novel directions for antifibrotic and regenerative therapies in the future.
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Affiliation(s)
- Jennifer B. Parker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Michelle F. Griffin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford, California, USA
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Amanda F. Spielman
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford, California, USA
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Derrick C. Wan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford, California, USA
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Michael T. Longaker
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
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35
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Nanni M, Rütsche D, Bächler C, Pontiggia L, Klar AS, Moehrlen U, Biedermann T. CD146 expression profile in human skin and pre-vascularized dermo-epidermal skin substitutes in vivo. J Biol Eng 2023; 17:9. [PMID: 36721239 PMCID: PMC9890844 DOI: 10.1186/s13036-023-00327-x] [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: 11/30/2022] [Accepted: 01/20/2023] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND CD146 is a cell adhesion molecule whose expression profile in human skin has not yet been elucidated. Here, we characterize CD146 expression pattern in human skin, in particular in blood endothelial cells (BECs) and lymphatic endothelial cells (LECs), which constitute human dermal microvascular endothelial cells (HDMECs), as well as in perivascular cells. RESULTS We demonstrated that CD146 is a specific marker of BECs, but not of LECs. Moreover, we found CD146 expression also in human pericytes surrounding blood capillaries in human skin. In addition, we demonstrated that CD146 expression is up-regulated by the TNFα-IL-1β/NF-kB axis in both BECs and pericytes. Finally, we engineered 3D collagen hydrogels composed of HDMECs, CD146+ pericytes, and fibroblasts which developed, in vitro and in vivo, a complete microvasculature network composed of blood and lymphatic capillaries with pericytes investing blood capillaries. CONCLUSIONS Overall, our results proved that CD146 is a specific marker of BECs and pericytes, but not LECs in human skin. Further, the combination of CD146+ pericytes with HDMECs in skin substitutes allowed to bioengineer a comprehensive 3D in vitro and in vivo model of the human dermal microvasculature.
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Affiliation(s)
- Monica Nanni
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Dominic Rütsche
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Mechanical and Process Engineering, Institute for Mechanical Systems, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Curdin Bächler
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Luca Pontiggia
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Agnes S. Klar
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Ueli Moehrlen
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Department of Surgery, University Children’s Hospital Zurich, Zurich, Switzerland ,grid.7400.30000 0004 1937 0650University of Zurich, Zurich, Switzerland
| | - Thomas Biedermann
- grid.412341.10000 0001 0726 4330Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, Wagistrasse 12, 8952 Zurich, Switzerland ,grid.412341.10000 0001 0726 4330Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland ,grid.7400.30000 0004 1937 0650University of Zurich, Zurich, Switzerland
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Zhang Y, Li X, Liu W, Hu G, Gu H, Cui X, Zhang D, Zeng W, Xia Y. TWEAK/Fn14 signaling may function as a reactive compensatory mechanism against extracellular matrix accumulation in keloid fibroblasts. Eur J Cell Biol 2023; 102:151290. [PMID: 36709605 DOI: 10.1016/j.ejcb.2023.151290] [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: 06/23/2022] [Revised: 01/22/2023] [Accepted: 01/22/2023] [Indexed: 01/25/2023] Open
Abstract
Overabundance of the extracellular matrix resulting from hyperproliferation of keloid fibroblasts (KFs) and dysregulation of apoptosis represents the main pathophysiology underlying keloids. TWEAK is a weak apoptosis inducer, and it plays a critical role in pathological tissue remodeling via its receptor, Fn14. However, the role of TWEAK/Fn14 signaling in the pathogenesis of keloids has not been investigated. In this study, we confirmed the overexpression levels of TWEAK and Fn14 in clinical keloid tissue specimens and primary KFs. The extracellular matrix (ECM)-related genes were also evaluated between primary KFs and their normal counterparts to determine the factors leading to the formation or development of keloids. Unexpectedly, exogenous TWEAK significantly reduced the levels of collagen I and collagen III, as well as alpha-smooth muscle actin (α-SMA). Additionally, TWEAK promoted MMPs expression and apoptosis activity of KFs. Furthermore, we verified that the inhibitory effect of TWEAK on KFs is through down-regulation of Polo-like kinase 5, which modulates cell differentiation and apoptosis. The TWEAK-Fn14 axis seems to be a secondary, although less effective, compensatory mechanism to increase the catabolic functions of fibroblasts in an attempt to further decrease the accumulation of collagen. DATA AVAILABILITY: All data generated or analyzed during this study are included in this published article (and its Supporting Information files).
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Affiliation(s)
- Yitian Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Xiaoli Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004 China
| | - Wei Liu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Guanglei Hu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Hanjiang Gu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Xiao Cui
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Dewu Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Weihui Zeng
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
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37
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Wong She RB, Gibran NS. Burn Wound Bed Management. J Burn Care Res 2023; 44:S13-S18. [PMID: 36048573 DOI: 10.1093/jbcr/irac128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Indexed: 12/27/2022]
Abstract
Critical to the success of modern burn care is the management of the burn wound. Timely and complete removal of nonviable tissue is complicated by the irreplaceable nature of the tissue lost either through the burn injury or as "collateral damage" as part of the treatment. Challenges in distinguishing between viable and nonviable tissue and "replacing the irreplaceable" are discussed alongside potential disruptive technologies which could fundamentally change how burn care is delivered. Advances in burn wound bed management forms the foundation on which the goal of zero preventable death and disability after burn injury can be achieved.
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Affiliation(s)
- Richard B Wong She
- National Burn Centre of New Zealand, Middlemore Hospital, Auckland, New Zealand
| | - Nicole S Gibran
- UW Department of Surgery, Harborview Medical Center, Seattle, Washington, USA
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38
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Wang K, Wen D, Xu X, Zhao R, Jiang F, Yuan S, Zhang Y, Gao Y, Li Q. Extracellular matrix stiffness-The central cue for skin fibrosis. Front Mol Biosci 2023; 10:1132353. [PMID: 36968277 PMCID: PMC10031116 DOI: 10.3389/fmolb.2023.1132353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/20/2023] [Indexed: 03/29/2023] Open
Abstract
Skin fibrosis is a physiopathological process featuring the excessive deposition of extracellular matrix (ECM), which is the main architecture that provides structural support and constitutes the microenvironment for various cellular behaviors. Recently, increasing interest has been drawn to the relationship between the mechanical properties of the ECM and the initiation and modulation of skin fibrosis, with the engagement of a complex network of signaling pathways, the activation of mechanosensitive proteins, and changes in immunoregulation and metabolism. Simultaneous with the progression of skin fibrosis, the stiffness of ECM increases, which in turn perturbs mechanical and humoral homeostasis to drive cell fate toward an outcome that maintains and enhances the fibrosis process, thus forming a pro-fibrotic "positive feedback loop". In this review, we highlighted the central role of the ECM and its dynamic changes at both the molecular and cellular levels in skin fibrosis. We paid special attention to signaling pathways regulated by mechanical cues in ECM remodeling. We also systematically summarized antifibrotic interventions targeting the ECM, hopefully enlightening new strategies for fibrotic diseases.
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Affiliation(s)
- Kang Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongsheng Wen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuewen Xu
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Rui Zhao
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Feipeng Jiang
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Shengqin Yuan
- School of Public Administration, Sichuan University, Chengdu, Sichuan, China
| | - Yifan Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yifan Zhang, ; Ya Gao, ; Qingfeng Li,
| | - Ya Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yifan Zhang, ; Ya Gao, ; Qingfeng Li,
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yifan Zhang, ; Ya Gao, ; Qingfeng Li,
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Salazar J, Carmona T, Zacconi FC, Venegas-Yazigi D, Cabello-Verrugio C, Il Choi W, Vilos C. The Human Dermis as a Target of Nanoparticles for Treating Skin Conditions. Pharmaceutics 2022; 15:pharmaceutics15010010. [PMID: 36678639 PMCID: PMC9860843 DOI: 10.3390/pharmaceutics15010010] [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: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Skin has a preventive role against any damage raised by harmful microorganisms and physical and chemical assaults from the external environment that could affect the body's internal organs. Dermis represents the main section of the skin, and its contribution to skin physiology is critical due to its diverse cellularity, vasculature, and release of molecular mediators involved in the extracellular matrix maintenance and modulation of the immune response. Skin structure and complexity limit the transport of substances, promoting the study of different types of nanoparticles that penetrate the skin layers under different mechanisms intended for skin illness treatments and dermo-cosmetic applications. In this work, we present a detailed morphological description of the dermis in terms of its structures and resident cells. Furthermore, we analyze the role of the dermis in regulating skin homeostasis and its alterations in pathophysiological conditions, highlighting its potential as a therapeutic target. Additionally, we describe the use of nanoparticles for skin illness treatments focused on dermis release and promote the use of metal-organic frameworks (MOFs) as an integrative strategy for skin treatments.
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Affiliation(s)
- Javier Salazar
- Laboratory of Nanomedicine and Targeted Delivery, School of Medicine, Universidad de Talca, Talca 3460000, Chile
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
- Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - Thais Carmona
- Laboratory of Nanomedicine and Targeted Delivery, School of Medicine, Universidad de Talca, Talca 3460000, Chile
- Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Departamento de Química Analítica, Química Física e Ingeniería Química and Instituto de Investigación Química “Andrés M. Del Rio” (IQAR), Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain
- Materials Chemistry Department, Faculty of Chemistry and Biology, University of Santiago of Chile (USACH), Santiago 9170022, Chile
| | - Flavia C. Zacconi
- Departamento de Química Orgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (cND3), Universidad de Talca, Talca 3460000, Chile
| | - Diego Venegas-Yazigi
- Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Materials Chemistry Department, Faculty of Chemistry and Biology, University of Santiago of Chile (USACH), Santiago 9170022, Chile
| | - Claudio Cabello-Verrugio
- Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370035, Chile
- Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370035, Chile
| | - Won Il Choi
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, 202, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju 28160, Chungbuk, Republic of Korea
| | - Cristian Vilos
- Laboratory of Nanomedicine and Targeted Delivery, School of Medicine, Universidad de Talca, Talca 3460000, Chile
- Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (cND3), Universidad de Talca, Talca 3460000, Chile
- Correspondence:
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Ilg MM, Lapthorn AR, Ralph DJ, Cellek S. Phenotypic screening of 1,953 FDA-approved drugs reveals 26 hits with potential for repurposing for Peyronie's disease. PLoS One 2022; 17:e0277646. [PMID: 36508413 PMCID: PMC9744312 DOI: 10.1371/journal.pone.0277646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 11/01/2022] [Indexed: 12/14/2022] Open
Abstract
Drug repurposing has been shown to bring safe medications to new patient populations, as recently evidenced by the COVID-19 pandemic. We investigated whether we could use phenotypic screening to repurpose drugs for the treatment of Peyronie's disease (PD). PD is a fibrotic disease characterised by continued myofibroblast presence and activity leading to formation of a plaque in the penile tunica albuginea (TA) that can cause pain during erection, erectile dysfunction, and penile deformity. PD affects 3-9% of men with treatment options limited to surgery or injection of collagenase which can only be utilised at late stages after the plaque is formed. Currently there are no approved medications that can be offered to patients presenting with early disease before the formation of the plaque. Drug repurposing may therefore be the ideal strategy to identify medical treatments to address this unmet medical need in early PD. We used primary human fibroblasts from PD patients in a phenotypic screening assay that measures TGF-β1-induced myofibroblast transformation which is the main cellular phenotype that drives the pathology in early PD. A library of FDA-approved 1,953 drugs was screened in duplicate wells at a single concentration (10 μM) in presence of TGF-β1. The myofibroblast marker α-SMA was quantified after 72h incubation. A positive control of SB-505124 (TGF-β1 receptor antagonist) was included on each plate. Hits were defined as showing >80% inhibition, whilst retaining >80% cell viability. 26 hits (1.3%) were identified which were divided into the following main groups: anti-cancer drugs, anti-inflammation, neurology, endocrinology, and imaging agents. Five of the top-ten drugs that increase myofibroblast-transformation appear to act on VEGFR. This is the first phenotypic screening of FDA-approved drugs for PD and our results suggest that it is a viable method to predict drugs with potential for repurposing to treat early PD.
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Affiliation(s)
- Marcus M. Ilg
- Medical Technology Research Centre, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Chelmsford, United Kingdom
| | - Alice R. Lapthorn
- Medical Technology Research Centre, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Chelmsford, United Kingdom
| | - David J. Ralph
- Medical Technology Research Centre, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Chelmsford, United Kingdom
- Department of Urology, University College London Hospital, London, United Kingdom
| | - Selim Cellek
- Medical Technology Research Centre, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Chelmsford, United Kingdom
- * E-mail:
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Gál P, Brábek J, Holub M, Jakubek M, Šedo A, Lacina L, Strnadová K, Dubový P, Hornychová H, Ryška A, Smetana K. Autoimmunity, cancer and COVID-19 abnormally activate wound healing pathways: critical role of inflammation. Histochem Cell Biol 2022; 158:415-434. [PMID: 35867145 PMCID: PMC9305064 DOI: 10.1007/s00418-022-02140-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2022] [Indexed: 11/30/2022]
Abstract
Recent evidence indicates that targeting IL-6 provides broad therapeutic approaches to several diseases. In patients with cancer, autoimmune diseases, severe respiratory infections [e.g. coronavirus disease 2019 (COVID-19)] and wound healing, IL-6 plays a critical role in modulating the systemic and local microenvironment. Elevated serum levels of IL-6 interfere with the systemic immune response and are associated with disease progression and prognosis. As already noted, monoclonal antibodies blocking either IL-6 or binding of IL-6 to receptors have been used/tested successfully in the treatment of rheumatoid arthritis, many cancer types, and COVID-19. Therefore, in the present review, we compare the impact of IL-6 and anti-IL-6 therapy to demonstrate common (pathological) features of the studied diseases such as formation of granulation tissue with the presence of myofibroblasts and deposition of new extracellular matrix. We also discuss abnormal activation of other wound-healing-related pathways that have been implicated in autoimmune disorders, cancer or COVID-19.
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Affiliation(s)
- Peter Gál
- Department of Pharmacology, Pavol Jozef Šafárik University, Košice, Slovak Republic
- Department of Biomedical Research, East-Slovak Institute of Cardiovascular Diseases, Košice, Slovak Republic
- Prague Burn Centre, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Jan Brábek
- Department of Cell Biology, Faculty of Science, Charles University, 120 00 Prague 2, Czech Republic
- BIOCEV, Faculty of Science, Charles University, 252 50 Vestec, Czech Republic
| | - Michal Holub
- Department of Infectious Diseases, First Faculty of Medicine, Military University Hospital Prague and Charles University, 160 00 Prague, Czech Republic
| | - Milan Jakubek
- Department of Paediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University, 120 00 Prague 2, Czech Republic
- BIOCEV, First Faculty of Medicine, Charles University, 252 50 Vestec, Czech Republic
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic
| | - Aleksi Šedo
- Institute of Biochemistry and Experimental Oncology, First Faculty of Medicine, Charles University, 120 00 Praha 2, Czech Republic
| | - Lukáš Lacina
- BIOCEV, First Faculty of Medicine, Charles University, 252 50 Vestec, Czech Republic
- Institute of Anatomy, First Faculty of Medicine, Charles University, 120 00 Prague 2, Czech Republic
- Department of Dermatovenereology, First Faculty of Medicine, Charles University, 120 00 Prague 2, Czech Republic
| | - Karolína Strnadová
- BIOCEV, First Faculty of Medicine, Charles University, 252 50 Vestec, Czech Republic
- Institute of Anatomy, First Faculty of Medicine, Charles University, 120 00 Prague 2, Czech Republic
| | - Petr Dubový
- Institute of Anatomy, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
| | - Helena Hornychová
- The Fingerland Department of Pathology, Faculty of Medicine Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
| | - Aleš Ryška
- The Fingerland Department of Pathology, Faculty of Medicine Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
| | - Karel Smetana
- BIOCEV, First Faculty of Medicine, Charles University, 252 50 Vestec, Czech Republic
- Institute of Anatomy, First Faculty of Medicine, Charles University, 120 00 Prague 2, Czech Republic
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Gong T, Wang Y, Dong S, Ma X, Du D, Zou C, Zheng Q, Wen Z. Single-cell RNA-seq reveals the communications between extracellular matrix-related components and Schwann cells contributing to the earlobe keloid formation. Front Med (Lausanne) 2022; 9:1000324. [PMID: 36388926 PMCID: PMC9643690 DOI: 10.3389/fmed.2022.1000324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 09/28/2022] [Indexed: 07/26/2023] Open
Abstract
Keloid is a major type of skin fibrotic disease, with one prominent feature of extensive accumulation of extracellular matrix (ECM) components, and another feature of pain/itching, which is closely related to the peripheral nervous system (PNS). However, the molecular pathogenesis of these two prominent features still needs to be further explored. In the present study, we performed single-cell RNA sequencing (scRNA-seq) on clinical earlobe keloid samples and adjacent normal skin samples and constructed a keloid atlas of 31,379 cells. All cells were clustered into 13 major cell types using cell-type-specific markers. Among them, fibroblast, vascular endothelial cells, and smooth muscle cells were defined as the ECM-related populations according to their ECM-associated functions. Also, we found that Schwann cells (SCs) were the main neuron cells of PNS in the skin. Interestingly, the cell proportions of ECM-related populations, as well as SC were increased significantly in the earlobe keloid compared to the adjacent normal tissues, suggesting an important role of these cell types in the development of the earlobe keloid. Comprehensive cell-cell interaction analysis at the single-cell level revealed a strong interaction between SC and ECM-related subgroups which might be mediated by SEMA3C signaling pathways and MK/PTN gene family, which are found to be mainly involved in promoting cell proliferation and migration. Moreover, further exploration of the interactions of ECM-related populations and SC in different keloids, including earlobe keloid, back keloid, and chest keloid revealed an increasing amount of TGFβ-TGFβ receptor interactions in chest/back keloids as compared to earlobe keloid, which suggested the anatomic site-specific pathogenesis in different keloids. Altogether, these findings suggested the interactions between ECM-related populations and SC contributing to the earlobe keloid formation and helped us to better understand the pathogenesis of keloids.
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Affiliation(s)
- Taogen Gong
- Otolaryngology-Head and Neck Surgery Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Department of Otolaryngology-Head and Neck Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), Shenzhen, China
| | - Yayu Wang
- Department of Cardiovascular Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), Shenzhen, China
| | - Shaowei Dong
- School of Medicine, Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, China
| | - Xiaoshi Ma
- Department of Pathology, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), Shenzhen, China
| | - Danfeng Du
- Department of Pathology, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), Shenzhen, China
| | - Chang Zou
- School of Medicine, Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, China
| | - Qijun Zheng
- Department of Cardiovascular Surgery, The Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), Shenzhen, China
| | - Zhong Wen
- Otolaryngology-Head and Neck Surgery Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Zhao W, Zhang R, Zang C, Zhang L, Zhao R, Li Q, Yang Z, Feng Z, Zhang W, Cui R. Exosome Derived from Mesenchymal Stem Cells Alleviates Pathological Scars by Inhibiting the Proliferation, Migration and Protein Expression of Fibroblasts via Delivering miR-138-5p to Target SIRT1. Int J Nanomedicine 2022; 17:4023-4038. [PMID: 36105616 PMCID: PMC9467851 DOI: 10.2147/ijn.s377317] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/01/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction The therapies of using exosomes derived from mesenchymal stem cells (MSC-Exo) for wound healing and scar attenuation and micro RNAs (miRNAs) for regulation of genes by translational inhibition and mRNA destabilization obtained great achievements. Silent information regulator 1 (SIRT1) is the silent information, which has an intricate role in many biological processes. However, the effects of SIRT1 and miR-138-5p loaded in MSC-Exo on pathological scars remain unclear. Methods MSC-Exo was isolated and identified by ultracentrifugation, transmission electron microscopy, nanoparticle size measuring instrument and Western blot assays. The relationship between SIRT1 and miR-138-5p was verified by a double-luciferase reporter assay. Cell Counting Kit-8, Τranswell, scratch, and Western blot assays were used to evaluate the proliferation and migration of human skin fibroblasts (HSFs), and the protein expression of SIRT1, NF-κB, α-SMA and TGF-β1 in HSFs, respectively. Flow cytometry was used to assess the apoptosis and cell cycle of HSFs affected by SIRT1. Results Our study demonstrated that miR-138-5p loaded in MSC-Exo could attenuate proliferation, migration and protein expression of HSFs-derived NF-κB, α-SMA, and TGF-β1 by targeting to SIRT1 gene, which confirmed the potential effects of MSC-Exo in alleviating pathological scars by performing as a miRNA’s delivery vehicle. Conclusion Exosomes derived from MSCs acting as a delivery vehicle to deliver miR-138-5p can downregulate SIRT1 to inhibit the growth and protein expression of HSFs and attenuate pathological scars.
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Affiliation(s)
- Wen Zhao
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Rui Zhang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Chengyu Zang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Linfeng Zhang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Ran Zhao
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Qiuchen Li
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Zhanjie Yang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Zhang Feng
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Wei Zhang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China
| | - Rongtao Cui
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China.,Department of Burn and Plastic Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
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Jay Sarkar T, Hermsmeier M, L. Ross J, Scott Herron G. Genetic and Epigenetic Influences on Cutaneous Cellular Senescence. Physiology (Bethesda) 2022. [DOI: 10.5772/intechopen.101152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Skin is the largest human organ system, and its protective function is critical to survival. The epithelial, dermal, and subcutaneous compartments are heterogeneous mixtures of cell types, yet they all display age-related skin dysfunction through the accumulation of an altered phenotypic cellular state called senescence. Cellular senescence is triggered by complex and dynamic genetic and epigenetic processes. A senescence steady state is achieved in different cell types under various and overlapping conditions of chronological age, toxic injury, oxidative stress, replicative exhaustion, DNA damage, metabolic dysfunction, and chromosomal structural changes. These inputs lead to outputs of cell-cycle withdrawal and the appearance of a senescence-associated secretory phenotype, both of which accumulate as tissue pathology observed clinically in aged skin. This review details the influence of genetic and epigenetic factors that converge on normal cutaneous cellular processes to create the senescent state, thereby dictating the response of the skin to the forces of both intrinsic and extrinsic aging. From this work, it is clear that no single biomarker or process leads to senescence, but that it is a convergence of factors resulting in an overt aging phenotype.
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Talbott HE, Mascharak S, Griffin M, Wan DC, Longaker MT. Wound healing, fibroblast heterogeneity, and fibrosis. Cell Stem Cell 2022; 29:1161-1180. [PMID: 35931028 PMCID: PMC9357250 DOI: 10.1016/j.stem.2022.07.006] [Citation(s) in RCA: 132] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fibroblasts are highly dynamic cells that play a central role in tissue repair and fibrosis. However, the mechanisms by which they contribute to both physiologic and pathologic states of extracellular matrix deposition and remodeling are just starting to be understood. In this review article, we discuss the current state of knowledge in fibroblast biology and heterogeneity, with a primary focus on the role of fibroblasts in skin wound repair. We also consider emerging techniques in the field, which enable an increasingly nuanced and contextualized understanding of these complex systems, and evaluate limitations of existing methodologies and knowledge. Collectively, this review spotlights a diverse body of research examining an often-overlooked cell type-the fibroblast-and its critical functions in wound repair and beyond.
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Affiliation(s)
- Heather E Talbott
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Shamik Mascharak
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michelle Griffin
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Derrick C Wan
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Michael T Longaker
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA; Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
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Kim Y, Nam Y, Rim YA, Ju JH. Anti-fibrotic effect of a selective estrogen receptor modulator in systemic sclerosis. Stem Cell Res Ther 2022; 13:303. [PMID: 35841004 PMCID: PMC9284699 DOI: 10.1186/s13287-022-02987-w] [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: 03/14/2022] [Accepted: 06/17/2022] [Indexed: 11/16/2022] Open
Abstract
Background The rarity of systemic sclerosis (SSc) has hampered the development of therapies for this intractable autoimmune disease. Induced pluripotent stem cell (iPSC) can be differentiated into the key disease-affected cells in vitro. The generation of patient-derived iPSCs has opened up possibilities for rare disease modeling. Since these cells can recapitulate the disease phenotypes of the cell in question, they are useful high-throughput platforms for screening for drugs that can reverse these abnormal phenotypes. Methods SSc iPSC was generated from PBMC by Sendai virus. Human iPSC lines from SSc patients were differentiated into dermal fibroblasts and keratinocytes. The iPSC-derived differentiated cells from the SSc patients were used on high-throughput platforms to screen for FDA-approved drugs that could be effective treatments for SSc. Results Skin organoids were generated from these cells exhibited fibrosis that resembled SSc skin. Screening of the 770-FDA-approved drug library showed that the anti-osteoporotic drug raloxifene reduced SSc iPSC-derived fibroblast proliferation and extracellular matrix production and skin fibrosis in organoids and bleomycin-induced SSc-model mice. Conclusions This study reveals that a disease model of systemic sclerosis generated using iPSCs-derived skin organoid is a novel tool for in vitro and in vivo dermatologic research. Since raloxifene and bazedoxifene are well-tolerated anti-osteoporotic drugs, our findings suggest that selective estrogen receptor modulator (SERM)-class drugs could treat SSc fibrosis. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02987-w.
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Affiliation(s)
- Yena Kim
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,YiPSCELL Inc., 47-3, Banpo-dearo 39-gil, Seocho-gu, Seoul, Republic of Korea
| | - Yoojun Nam
- YiPSCELL Inc., 47-3, Banpo-dearo 39-gil, Seocho-gu, Seoul, Republic of Korea
| | - Yeri Alice Rim
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ji Hyeon Ju
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, South Korea. .,YiPSCELL Inc., 47-3, Banpo-dearo 39-gil, Seocho-gu, Seoul, Republic of Korea. .,Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 137-040, Republic of Korea.
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Chacón-Solano E, León C, Carretero M, García M, Sánchez-Domínguez R, Quero F, Méndez-Jiménez E, Bonafont J, Ruiz-Mezcua B, Escámez MJ, Larcher F, Del Río M. Mechanistic interrogation of mutation-independent disease modulators of RDEB identifies the small leucine-rich proteoglycan PRELP as a TGF-β antagonist and inhibitor of fibrosis. Matrix Biol 2022; 111:189-206. [PMID: 35779740 DOI: 10.1016/j.matbio.2022.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 06/17/2022] [Accepted: 06/27/2022] [Indexed: 11/29/2022]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a genetic extracellular matrix disease caused by deficiency in type VII collagen (Col VII). The disease manifests with devastating mucocutaneous fragility leading to progressive fibrosis and metastatic squamous cell carcinomas. Although collagen VII abundance is considered the main predictor of symptom course, previous studies have revealed the existence of mutation-independent mechanisms that control disease progression. Here, to investigate and validate new molecular modifiers of wound healing and fibrosis in a natural human setting, and toward development of disease-modulating treatment of RDEB, we performed gene expression profiling of primary fibroblast from RDEB siblings with marked phenotypic variations, despite having equal COL7A1 genotype. Gene enrichment analysis suggested that severe RDEB was associated with enhanced response to TGF-β stimulus, oxidoreductase activity, and cell contraction. Consistently, we found an increased response to TGF-β, higher levels of basal and induced reactive oxygen species (ROS), and greater contractile ability in collagen lattices in RDEB fibroblasts (RDEBFs) from donors with severe RDEB vs mild RDEB. Treatment with antioxidants allowed a reduction of the pro-fibrotic and contractile phenotype. Importantly, our analyses revealed higher expression and deposition in skin of the relatively uncharacterized small leucine-rich extracellular proteoglycan PRELP/prolargin associated with milder RDEB manifestations. Mechanistic investigations showed that PRELP effectively attenuated fibroblasts' response to TGF-β1 stimulus and cell contractile capacity. Moreover, PRELP overexpression in RDEBFs enhanced RDEB keratinocyte attachment to fibroblast-derived extracellular matrix in the absence of Col VII. Our results highlight the clinical relevance of pro-oxidant status and hyper-responsiveness to TGF-β in RDEB severity and progression. Of note, our study also reveals PRELP as a novel and natural TGF-β antagonist with a likely dermo-epidermal pro-adhesive capacity.
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Affiliation(s)
- E Chacón-Solano
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain.
| | - C León
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain
| | - M Carretero
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - M García
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - R Sánchez-Domínguez
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain
| | - F Quero
- División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - E Méndez-Jiménez
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - J Bonafont
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - B Ruiz-Mezcua
- Departamento de Informática, Universidad Carlos III de Madrid (UC3M); Madrid, Spain
| | - M J Escámez
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain
| | - F Larcher
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain.
| | - M Del Río
- Departamento de Bioingeniería e Ingería Aeroespacial, Universidad Carlos III de Madrid (UC3M); Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII; Madrid, Spain; IIS-FJD; Madrid, Spain; División de Biomedicina Epitelial, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT); Madrid, Spain.
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48
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Generation and characterization of genome-modified chondrocyte-like cells from the zebra finch cell line immortalized by c-MYC expression. Front Zool 2022; 19:18. [PMID: 35690812 PMCID: PMC9188209 DOI: 10.1186/s12983-022-00464-x] [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: 12/21/2021] [Accepted: 06/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Due to their cost effectiveness, ease of use, and unlimited supply, immortalized cell lines are used in place of primary cells for a wide range of research purposes, including gene function studies, CRISPR-based gene editing, drug metabolism tests, and vaccine or therapeutic protein production. Although immortalized cell lines have been established for a range of animal species, there is still a need to develop such cell lines for wild species. The zebra finch, which is used widely as a model species to study the neurobiological basis of human speech disorders, has been employed in several functional studies involving gene knockdown or the introduction of exogenous transgenes in vivo; however, the lack of an immortalized zebra finch cell line has hampered precise genome editing studies. RESULTS Here, we established an immortalized cell line by a single genetic event, expression of the c-MYC oncogene, in zebra finch embryonic fibroblasts and examined its potential suitability for gene targeting investigations. Retroviral vector-mediated transduction of c-MYC was used to immortalize zebra finch primary fibroblasts; the transformed cells proliferated stably over several passages, resulting in the expression of chondrocyte-specific genes. The transfection efficiency of the immortalized cells was much higher than that of the primary cells. Targeted knockout of the SOX9 gene, which plays a role in the differentiation of mesenchymal progenitor cells into chondrocytes, was conducted in vitro and both apoptosis and decreased expression levels of chondrogenic marker genes were observed in edited cells. CONCLUSIONS The c-MYC induced immortalized chondrocyte-like cell line described here broadens the available options for establishing zebra finch cell lines, paves the way for in-depth biological researches, and provides convenient approaches for biotechnology studies, particularly genomic modification research.
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49
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Lan H, Zou M, Zhu F, Chen H, Wang T, Huang X. Pro‐angiogenic role of
ZEB1
in skin wound healing by upregulating
VEGFA
via
microRNA
‐206 suppression. Exp Dermatol 2022; 31:1392-1401. [PMID: 35570385 DOI: 10.1111/exd.14607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/13/2022] [Accepted: 05/12/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Hongwei Lan
- Department of Burn Plastic Surgery The First Affiliated Hospital of Hunan University of Chinese Medicine Changsha Hunan P.R. China
| | - Meilin Zou
- Department of Burn Plastic Surgery The First Affiliated Hospital of Hunan University of Chinese Medicine Changsha Hunan P.R. China
| | - Furong Zhu
- Department of Burn Plastic Surgery The First Affiliated Hospital of Hunan University of Chinese Medicine Changsha Hunan P.R. China
| | - Hongping Chen
- Department of Burn Plastic Surgery The First Affiliated Hospital of Hunan University of Chinese Medicine Changsha Hunan P.R. China
| | - Tingting Wang
- Department of Burn Plastic Surgery The First Affiliated Hospital of Hunan University of Chinese Medicine Changsha Hunan P.R. China
| | - Xinling Huang
- Department of Burn Plastic Surgery The First Affiliated Hospital of Hunan University of Chinese Medicine Changsha Hunan P.R. China
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50
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Capolupo L, Khven I, Lederer AR, Mazzeo L, Glousker G, Ho S, Russo F, Montoya JP, Bhandari DR, Bowman AP, Ellis SR, Guiet R, Burri O, Detzner J, Muthing J, Homicsko K, Kuonen F, Gilliet M, Spengler B, Heeren RMA, Dotto GP, La Manno G, D'Angelo G. Sphingolipids control dermal fibroblast heterogeneity. Science 2022; 376:eabh1623. [PMID: 35420948 DOI: 10.1126/science.abh1623] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Human cells produce thousands of lipids that change during cell differentiation and can vary across individual cells of the same type. However, we are only starting to characterize the function of these cell-to-cell differences in lipid composition. Here, we measured the lipidomes and transcriptomes of individual human dermal fibroblasts by coupling high-resolution mass spectrometry imaging with single-cell transcriptomics. We found that the cell-to-cell variations of specific lipid metabolic pathways contribute to the establishment of cell states involved in the organization of skin architecture. Sphingolipid composition is shown to define fibroblast subpopulations, with sphingolipid metabolic rewiring driving cell-state transitions. Therefore, cell-to-cell lipid heterogeneity affects the determination of cell states, adding a new regulatory component to the self-organization of multicellular systems.
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Affiliation(s)
- Laura Capolupo
- Interfaculty Institute of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Irina Khven
- Brain Mind Institute, Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Alex R Lederer
- Brain Mind Institute, Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Luigi Mazzeo
- Department of Biochemistry, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Galina Glousker
- School of Life Sciences, Swiss Institute for Experimental Cancer Research, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Sylvia Ho
- Interfaculty Institute of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Francesco Russo
- Institute of Biochemistry and Cellular Biology, National Research Council of Italy, 80131 Napoli, Italy
| | - Jonathan Paz Montoya
- Interfaculty Institute of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Dhaka R Bhandari
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Andrew P Bowman
- Maastricht MultiModal Molecular Imaging Institute, Division of Imaging Mass Spectrometry, Maastricht University, 6629 ER Maastricht, Netherlands
| | - Shane R Ellis
- Maastricht MultiModal Molecular Imaging Institute, Division of Imaging Mass Spectrometry, Maastricht University, 6629 ER Maastricht, Netherlands.,Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia.,Illawarra Health and Medical Research Institute, Wollongong, New South Wales 2522, Australia
| | - Romain Guiet
- Faculté des Sciences de la Vie, Bioimaging and Optics Platform, École Polytechnique Fédérale de Lausanne, Lausanne, CH-1015 Vaud, Switzerland
| | - Olivier Burri
- Faculté des Sciences de la Vie, Bioimaging and Optics Platform, École Polytechnique Fédérale de Lausanne, Lausanne, CH-1015 Vaud, Switzerland
| | - Johanna Detzner
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany
| | - Johannes Muthing
- Institute of Hygiene, University of Münster, D-48149 Münster, Germany
| | - Krisztian Homicsko
- Department of Oncology, Centre Hospitalier Universitaire Vaudois, CH-1011 Lausanne, Switzerland.,Swiss Cancer Center Leman, CH-1015 Lausanne, Switzerland.,The Ludwig Institute for Cancer Research, Lausanne Branch, CH-1066 Epalinges, Switzerland
| | - François Kuonen
- Département de Dermatologie et Vénéréologie, Centre Hospitalier Universitaire Vaudois, CH-1011 Lausanne, Switzerland
| | - Michel Gilliet
- Département de Dermatologie et Vénéréologie, Centre Hospitalier Universitaire Vaudois, CH-1011 Lausanne, Switzerland
| | - Bernhard Spengler
- Institute for Inorganic and Analytical Chemistry, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Ron M A Heeren
- Maastricht MultiModal Molecular Imaging Institute, Division of Imaging Mass Spectrometry, Maastricht University, 6629 ER Maastricht, Netherlands
| | - G Paolo Dotto
- Personalized Cancer Prevention Research Unit, Head and Neck Surgery Division, Centre Hospitalier Universitaire Vaudois, CH-1011 Lausanne, Switzerland.,Department of Biochemistry, University of Lausanne, CH-1066 Epalinges, Switzerland.,Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - Gioele La Manno
- Brain Mind Institute, Faculty of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Giovanni D'Angelo
- Interfaculty Institute of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.,Institute of Biochemistry and Cellular Biology, National Research Council of Italy, 80131 Napoli, Italy
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