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Chen X, Wu Y, Jia S, Zhao M. Fibroblast: A Novel Target for Autoimmune and Inflammatory Skin Diseases Therapeutics. Clin Rev Allergy Immunol 2024:10.1007/s12016-024-08997-1. [PMID: 38940997 DOI: 10.1007/s12016-024-08997-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Abstract
Fibroblasts are crucial components of the skin structure. They were traditionally believed to maintain the skin's structure by producing extracellular matrix and other elements. Recent research illuminated that fibroblasts can respond to external stimuli and exhibit diverse functions, such as the secretion of pro-inflammatory factors, adipogenesis, and antigen presentation, exhibiting remarkable heterogeneity and plasticity. This revelation positions fibroblasts as active contributors to the pathogenesis of skin diseases, challenging the traditional perspective that views fibroblasts solely as structural entities. Based on their diverse functions, fibroblasts can be categorized into six subtypes: pro-inflammatory fibroblasts, myofibroblasts, adipogenic fibroblasts, angiogenic fibroblasts, mesenchymal fibroblasts, and antigen-presenting fibroblasts. Cytokines, metabolism, and epigenetics regulate functional abnormalities in fibroblasts. The dynamic changes fibroblasts exhibit in different diseases and disease states warrant a comprehensive discussion. We focus on dermal fibroblasts' aberrant manifestations and pivotal roles in inflammatory and autoimmune skin diseases, including psoriasis, vitiligo, lupus erythematosus, scleroderma, and atopic dermatitis, and propose targeting aberrantly activated fibroblasts as a potential therapeutic strategy for inflammatory and autoimmune skin diseases.
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Affiliation(s)
- Xiaoyun Chen
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Yutong Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Sujie Jia
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, China.
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China.
| | - Ming Zhao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, China.
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China.
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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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Higginbotham S, Workman VL, Giblin AV, Green NH, Lambert DW, Hearnden V. Inhibition and reversal of a TGF-β1 induced myofibroblast phenotype by adipose tissue-derived paracrine factors. Stem Cell Res Ther 2024; 15:166. [PMID: 38867276 PMCID: PMC11170827 DOI: 10.1186/s13287-024-03776-3] [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: 03/29/2024] [Accepted: 05/27/2024] [Indexed: 06/14/2024] Open
Abstract
BACKGROUND Hypertrophic scarring results from myofibroblast differentiation and persistence during wound healing. Currently no effective treatment for hypertrophic scarring exists however, autologous fat grafting has been shown to improve scar elasticity, appearance, and function. The aim of this study was to understand how paracrine factors from adipose tissues and adipose-derived stromal cells (ADSC) affect fibroblast to myofibroblast differentiation. METHODS The transforming growth factor-β1 (TGF-β1) induced model of myofibroblast differentiation was used to test the effect of conditioned media from adipose tissue, ADSC or lipid on the proportion of fibroblasts and myofibroblasts. RESULTS Adipose tissue conditioned media inhibited the differentiation of fibroblasts to myofibroblasts but this inhibition was not observed following treatment with ADSC or lipid conditioned media. Hepatocyte growth factor (HGF) was readily detected in the conditioned medium from adipose tissue but not ADSC. Cells treated with HGF, or fortinib to block HGF, demonstrated that HGF was not responsible for the inhibition of myofibroblast differentiation. Conditioned media from adipose tissue was shown to reduce the proportion of myofibroblasts when added to fibroblasts previously treated with TGF-β1, however, conditioned media treatment was unable to significantly reduce the proportion of myofibroblasts in cell populations isolated from scar tissue. CONCLUSIONS Cultured ADSC or adipocytes have been the focus of most studies, however, this work highlights the importance of considering whole adipose tissue to further our understanding of fat grafting. This study supports the use of autologous fat grafts for scar treatment and highlights the need for further investigation to determine the mechanism.
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Affiliation(s)
- S Higginbotham
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK.
- School of Clinical Dentistry, University of Sheffield, Sheffield, UK.
- Newcastle Fibrosis Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
| | - V L Workman
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
| | - A-V Giblin
- Department of Plastic Surgery, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - N H Green
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- INSIGNEO Institute for in silico Medicine, University of Sheffield, Sheffield, UK
| | - D W Lambert
- School of Clinical Dentistry, University of Sheffield, Sheffield, UK
| | - V Hearnden
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
- INSIGNEO Institute for in silico Medicine, University of Sheffield, Sheffield, UK
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4
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Lee H, Kim SY, Kwon NJ, Jo SJ, Kwon O, Kim JI. Single-Cell and Spatial Transcriptome Analysis of Dermal Fibroblast Development in Perinatal Mouse Skin: Dynamic Lineage Differentiation and Key Driver Genes. J Invest Dermatol 2024; 144:1238-1250.e11. [PMID: 38072389 DOI: 10.1016/j.jid.2023.11.008] [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: 02/20/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 01/21/2024]
Abstract
Several single-cell RNA studies of developing mouse skin have elucidated the molecular and cellular processes involved in skin development. However, they have primarily focused on either the fetal or early postnatal period, leaving a gap in our understanding of skin development. In this study, we conducted a comprehensive time-series analysis by combining single-cell RNA-sequencing datasets collected at different stages of development (embryonic days 13.5, 14.5, and 16.5 and postnatal days 0, 2, and 4) and validated our findings through multipanel in situ spatial transcriptomics. Our analysis indicated that embryonic fibroblasts exhibit heterogeneity from a very early stage and that the rapid determination of each lineage occurs within days after birth. The expression of putative key driver genes, including Hey1, Ebf1, Runx3, and Sox11 for the dermal papilla trajectory; Lrrc15 for the dermal sheath trajectory; Zfp536 and Nrn1 for the papillary fibroblast trajectory; and Lrrn4cl and Mfap5 for the fascia fibroblast trajectory, was detected in the corresponding, spatially identified cell types. Finally, cell-to-cell interaction analysis indicated that the dermal papilla lineage is the primary source of the noncanonical Wnt pathway during skin development. Together, our study provides a transcriptomic reference for future research in the field of skin development and regeneration.
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Affiliation(s)
- Hanjae Lee
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Department of Translational Medicine, Seoul National University College of Medicine, Seoul, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea
| | - So Young Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | | | - Seong Jin Jo
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea; Laboratory of Cutaneous Aging and Hair Research, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea; Institute of Human-Environment Interface Biology, Seoul National University College of Medicine, Seoul, Korea
| | - Ohsang Kwon
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea; Laboratory of Cutaneous Aging and Hair Research, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea; Institute of Human-Environment Interface Biology, Seoul National University College of Medicine, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea.
| | - Jong-Il Kim
- Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University, Seoul, Korea
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5
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Weng T, Zhang X, He J, Yang Y, Li C. Bioinformatics-based analysis of the relationship between plasminogen regulatory genes and photoaging. J Cosmet Dermatol 2024; 23:2270-2278. [PMID: 38634239 DOI: 10.1111/jocd.16266] [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: 09/02/2023] [Revised: 02/08/2024] [Accepted: 02/23/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Ultraviolet radiation causes skin photoaging by producing a variety of enzymes, which impact both skin health and hinder beauty. Currently, the early diagnosis and treatment of photoaging remain a challenge. Bioinformatics analysis has strong advantages in exploring core genes and the biological pathways of photoaging. AIMS To screen and validate key risk genes associated with plasminogen in photoaging and to identify potential target genes for photoaging. METHODS Two human transcriptome datasets were obtained by searching the Gene Expression Omnibus (GEO) database, and the mRNAs in the GSE131789 dataset were differentially analyzed, and then the weighted gene co-expression network analysis (WGCNA) was performed to find out the strongest correlations. Template genes, interaction analysis of differentially expressed genes (DEGs), modular genes with the most WGCNA correlations, and genecard database genes related to plasminogen were performed, and further Kyoto genes and Genome Encyclopedia (KEGG) pathway analysis. Two different algorithms, least absolute shrinkage and selection operator (LASSO) and support vector machines-recursive feature elimination (SVM-RFE), were used to find key genes. Then the data set (GSE206495) was validated and analyzed. Real-time PCR was performed to validate the expression of key genes through in vitro cellular experiments. RESULTS IFI6, IFI44L, HRSP12, and BMP4 were screened from datasets as key genes for photoaging and further analysis showed that these genes have significant diagnostic value for photoaging. CONCLUSION IFI6, IFI44L, HRSP12, and BMP4 play a key role in the pathogenesis of photoaging, and serve as promising potential predictive biomarkers for photoaging.
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Affiliation(s)
- Tengyu Weng
- Department of Dermatology, First Medical Center of PLA General Hospital, Beijing, China
| | - Xiaoning Zhang
- Department of Dermatology, First Medical Center of PLA General Hospital, Beijing, China
| | - Juan He
- Department of Dermatology, First Medical Center of PLA General Hospital, Beijing, China
| | - Yi Yang
- Department of Dermatology, Third Medical Center of PLA General Hospital, Beijing, China
| | - Chengxin Li
- Department of Dermatology, First Medical Center of PLA General Hospital, Beijing, China
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Yang Y, Li M, Zhu Y, Wang X, Chen Q, Lu S. Identification of potential tissue-specific biomarkers involved in pig fat deposition through integrated bioinformatics analysis and machine learning. Heliyon 2024; 10:e31311. [PMID: 38807889 PMCID: PMC11130688 DOI: 10.1016/j.heliyon.2024.e31311] [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: 01/27/2024] [Revised: 05/10/2024] [Accepted: 05/14/2024] [Indexed: 05/30/2024] Open
Abstract
Backfat thickness (BT) and intramuscular fat (IMF) content are closely appertained to meat production and quality in pig production. Deposition in subcutaneous adipose (SA) and IMF concerns different genes and regulatory mechanisms. And larger studies with rigorous design should be carried to explore the molecular regulation of fat deposition in different tissues. The purpose of this study is to gain a better understanding of the molecular mechanisms underlying differences in fat deposition among different tissues and identify tissue-specific genes involved in regulating fat deposition. The SA-associated datasets (GSE122349 and GSE145956) and IMF-associated datasets (GSE165613 and GSE207279) were downloaded from the Gene Expression Omnibus (GEO) as the BT and IMF group, respectively. Subsequently, the Robust Rank Aggregation (RRA) algorithm identified 27 down- and 29 up-regulated differentially expressed genes (DEGs) in the BT group. Based on bioinformatics and three machine learning algorithms, four SA deposition-related potential biomarkers, namely ACLY, FASN, ME1, and ARVCF were selected. FASN was evaluated as the most valuable biomarker for the SA mechanism. The 18 down- and 34 up-regulated DEGs in the IMF group were identified, and ACTA2 and HMGCL were screened as the IMF deposition-related candidate core genes, especially the ACTA2 may play the critical role in IMF deposition regulation. Moreover, based on the constructed ceRNA network, we postulated that the role of predicted ceRNA interaction network of XIST, NEAT1/miR-15a-5p, miR-16-5p, miR-424-5p, miR-497-5p/FASN were vital in the SA metabolism, XIST, NEAT1/miR-27a/b-3p, 181a/c-5p/ACTA2 might contribute to the regulation to IMF metabolism, which all gave suggestions in molecular mechanism for regulation of fat deposition. These findings may facilitate advancements in porcine quality at the genetic and molecular levels and assist with human obesity-associated diseases.
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Affiliation(s)
| | | | - Yixuan Zhu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Xiaoyi Wang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Qiang Chen
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Shaoxiong Lu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
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7
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张 悦, 汤 炜, 田 卫, 于 湄. [Research progress in regulation of hair growth by dermal adipose tissue]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2024; 38:626-632. [PMID: 38752252 PMCID: PMC11096881 DOI: 10.7507/1002-1892.202402092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/11/2024] [Indexed: 05/18/2024]
Abstract
Objective To summarize the dynamic and synchronized changes between the hair cycle and dermal adipose tissue as well as the impact of dermal adipose tissue on hair growth, and to provide a new research idea for the clinical treatment of hair loss. Methods An extensive review of relevant literature both domestic and international was conducted, analyzing and summarizing the impact of dermal adipose precursor cells, mature dermal adipocytes, and the processes of adipogenesis in dermal adipose tissue on the transition of hair cycle phases. Results Dermal adipose tissue is anatomically adjacent to hair follicles and closely related to the changes in the hair cycle. The proliferation and differentiation of dermal adipose precursor cells promote the transition of hair cycle from telogen to anagen, while mature adipocytes can accelerate the transition from anagen to catagen of the hair cycle by expressing signaling molecules, with adipogenesis in dermal adipose tissue and hair cycle transition signaling coexistence. Conclusion Dermal adipose tissue affects the transition of the hair cycle and regulates hair growth by secreting various signaling molecules. However, the quantity and depth of existing literature are far from sufficient to fully elucidate its prominent role in regulating the hair cycle, and the specific regulatory mechanisms needs to be further studied.
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Affiliation(s)
- 悦 张
- 四川大学华西口腔医学院 口腔再生医学国家地方联合工程实验室(成都 610041)National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P. R. China
- 四川大学华西口腔医院口腔颌面创伤整形外科(成都 610041)Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P. R. China
| | - 炜 汤
- 四川大学华西口腔医学院 口腔再生医学国家地方联合工程实验室(成都 610041)National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P. R. China
| | - 卫东 田
- 四川大学华西口腔医学院 口腔再生医学国家地方联合工程实验室(成都 610041)National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P. R. China
- 四川大学华西口腔医院口腔颌面创伤整形外科(成都 610041)Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P. R. China
| | - 湄 于
- 四川大学华西口腔医学院 口腔再生医学国家地方联合工程实验室(成都 610041)National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu Sichuan, 610041, P. R. China
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Niu N, Shen X, Wang Z, Chen Y, Weng Y, Yu F, Tang Y, Lu P, Liu M, Wang L, Sun Y, Yang M, Shen B, Jin J, Lu Z, Jiang K, Shi Y, Xue J. Tumor cell-intrinsic epigenetic dysregulation shapes cancer-associated fibroblasts heterogeneity to metabolically support pancreatic cancer. Cancer Cell 2024; 42:869-884.e9. [PMID: 38579725 DOI: 10.1016/j.ccell.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/01/2024] [Accepted: 03/11/2024] [Indexed: 04/07/2024]
Abstract
The tumor microenvironment (TME) in pancreatic ductal adenocarcinoma (PDAC) involves a significant accumulation of cancer-associated fibroblasts (CAFs) as part of the host response to tumor cells. The origins and functions of transcriptionally diverse CAF populations in PDAC remain poorly understood. Tumor cell-intrinsic genetic mutations and epigenetic dysregulation may reshape the TME; however, their impacts on CAF heterogeneity remain elusive. SETD2, a histone H3K36 trimethyl-transferase, functions as a tumor suppressor. Through single-cell RNA sequencing, we identify a lipid-laden CAF subpopulation marked by ABCA8a in Setd2-deficient pancreatic tumors. Our findings reveal that tumor-intrinsic SETD2 loss unleashes BMP2 signaling via ectopic gain of H3K27Ac, leading to CAFs differentiation toward lipid-rich phenotype. Lipid-laden CAFs then enhance tumor progression by providing lipids for mitochondrial oxidative phosphorylation via ABCA8a transporter. Together, our study links CAF heterogeneity to epigenetic dysregulation in tumor cells, highlighting a previously unappreciated metabolic interaction between CAFs and pancreatic tumor cells.
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Affiliation(s)
- Ningning Niu
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuqing Shen
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zheng Wang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yueyue Chen
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yawen Weng
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feier Yu
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingying Tang
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping Lu
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mingzhu Liu
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liwei Wang
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Department of Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yongwei Sun
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Minwei Yang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baiyong Shen
- Department of General Surgery, Pancreatic Disease Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiabin Jin
- Department of General Surgery, Pancreatic Disease Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Research Institute of Pancreatic Diseases, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zipeng Lu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China
| | - Kuirong Jiang
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China
| | - Yufeng Shi
- Clinical Center for Brain and Spinal Cord Research, Tongji University, Shanghai, China
| | - Jing Xue
- State Key Laboratory of Systems Medicine for Cancer, Stem Cell Research Center, Ren Ji Hospital, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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9
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Wang M, Zhao J, Li J, Meng M, Zhu M. Insights into the role of adipose-derived stem cells and secretome: potential biology and clinical applications in hypertrophic scarring. Stem Cell Res Ther 2024; 15:137. [PMID: 38735979 PMCID: PMC11089711 DOI: 10.1186/s13287-024-03749-6] [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: 03/03/2024] [Accepted: 05/01/2024] [Indexed: 05/14/2024] Open
Abstract
Scar tissue is the inevitable result of repairing human skin after it has been subjected to external destructive stimuli. It leads to localized damage to the appearance of the skin, accompanied by symptoms such as itching and pain, which reduces the quality of life of the patient and causes serious medical burdens. With the continuous development of economy and society, there is an increasing demand for beauty. People are looking forward to a safer and more effective method to eliminate pathological scarring. In recent years, adipose-derived stem cells (ADSCs) have received increasing attention from researchers. It can effectively improve pathological scarring by mediating inflammation, regulating fibroblast proliferation and activation, and vascular reconstruction. This review focuses on the pathophysiological mechanisms of hypertrophic scarring, summarizing the therapeutic effects of in vitro, in vivo, and clinical studies on the therapeutic effects of ADSCs in the field of hypertrophic scarring prevention and treatment, the latest application techniques, such as cell-free therapies utilizing ADSCs, and discussing the advantages and limitations of ADSCs. Through this review, we hope to further understand the characterization of ADSC and clarify the effectiveness of its application in hypertrophic scarring treatment, so as to provide clinical guidance.
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Affiliation(s)
- Menglin Wang
- Department of Plastic Surgery, The First Affiliated Hospital, Dalian Medical University, No. 222, Zhongshan Road, Xigang District, Dalian, 116011, China
| | - Jianyu Zhao
- Department of Orthopaedics, The First Affiliated Hospital, Dalian Medical University, No. 222, Zhongshan Road, Xigang District, Dalian, 116011, China
| | - Jiacheng Li
- Department of Plastic Surgery, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Meng Meng
- Department of Orthopaedics, The First Affiliated Hospital, Dalian Medical University, No. 222, Zhongshan Road, Xigang District, Dalian, 116011, China.
| | - Mengru Zhu
- Department of Plastic Surgery, The First Affiliated Hospital, Dalian Medical University, No. 222, Zhongshan Road, Xigang District, Dalian, 116011, China.
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10
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Kuan CH, Tai KY, Lu SC, Wu YF, Wu PS, Kwang N, Wang WH, Mai-Yi Fan S, Wang SH, Chien HF, Lai HS, Lin MH, Plikus MV, Lin SJ. Delayed Collagen Production without Myofibroblast Formation Contributes to Reduced Scarring in Adult Skin Microwounds. J Invest Dermatol 2024; 144:1124-1133.e7. [PMID: 38036291 DOI: 10.1016/j.jid.2023.10.029] [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: 07/18/2022] [Revised: 10/02/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023]
Abstract
In adult mammals, wound healing predominantly follows a fibrotic pathway, culminating in scar formation. However, cutaneous microwounds generated through fractional photothermolysis, a modality that produces a constellation of microthermal zones, exhibit a markedly different healing trajectory. Our study delineates the cellular attributes of these microthermal zones, underscoring a temporally limited, subclinical inflammatory milieu concomitant with rapid re-epithelialization within 24 hours. This wound closure is facilitated by the activation of genes associated with keratinocyte migration and differentiation. In contrast to macrothermal wounds, which predominantly heal through a robust myofibroblast-mediated collagen deposition, microthermal zones are characterized by absence of wound contraction and feature delayed collagen remodeling, initiating 5-6 weeks after injury. This distinct wound healing is characterized by a rapid re-epithelialization process and a muted inflammatory response, which collectively serve to mitigate excessive myofibroblast activation. Furthermore, we identify an initial reparative phase characterized by a heterogeneous extracellular matrix protein composition, which precedes the delayed collagen remodeling. These findings extend our understanding of cutaneous wound healing and may have significant implications for the optimization of therapeutic strategies aimed at mitigating scar formation.
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Affiliation(s)
- Chen-Hsiang Kuan
- Graduate Institute of Clinical Research, College of Medicine, National Taiwan University, Taipei, Taiwan; Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital, College of Medicine, Taipei, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Kang-Yu Tai
- Genome and Systems Biology Degree Program, National Taiwan University and Academia Sinica, Taipei, Taiwan
| | - Shao-Chi Lu
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Yueh-Feng Wu
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Pei-Shan Wu
- Department of Ophthalmology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Nellie Kwang
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, Irvine, California, USA
| | - Wei-Hung Wang
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Sabrina Mai-Yi Fan
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Shiou-Han Wang
- Department of Dermatology, National Taiwan University Hospital, College of Medicine, Taipei, Taiwan
| | - Hsiung-Fei Chien
- Division of Plastic Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan; TMU Center for Cell Therapy and Regeneration Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hong-Shiee Lai
- Department of Surgery, National Taiwan University Hospital, College of Medicine, Taipei, Taiwan; Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Miao-Hsia Lin
- Graduate Institute and Department of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Maksim V Plikus
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, Irvine, California, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, California, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, California, USA
| | - Sung-Jan Lin
- Graduate Institute of Clinical Research, College of Medicine, National Taiwan University, Taipei, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan; Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan; Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan; Center for Frontier Medicine, National Taiwan University Hospital, Taipei, Taiwan.
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11
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Savitri C, Ha SS, Kwon JW, Kim SH, Kim Y, Park HM, Kwon H, Ji MJ, Park K. Human Fibroblast-Derived Matrix Hydrogel Accelerates Regenerative Wound Remodeling Through the Interactions with Macrophages. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305852. [PMID: 38476050 PMCID: PMC11095160 DOI: 10.1002/advs.202305852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Herein, a novel extracellular matrix (ECM) hydrogel is proposed fabricated solely from decellularized, human fibroblast-derived matrix (FDM) toward advanced wound healing. This FDM-gel is physically very stable and viscoelastic, while preserving the natural ECM diversity and various bioactive factors. Subcutaneously transplanted FDM-gel provided a permissive environment for innate immune cells infiltration. Compared to collagen hydrogel, excellent wound healing indications of FDM-gel treated in the full-thickness wounds are noticed, particularly hair follicle formation via highly upregulated β-catenin. Sequential analysis of the regenerated wound tissues disclosed that FDM-gel significantly alleviated pro-inflammatory cytokine and promoted M2-like macrophages, along with significantly elevated vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) level. A mechanistic study demonstrated that macrophages-FDM interactions through cell surface integrins α5β1 and α1β1 resulted in significant production of VEGF and bFGF, increased Akt phosphorylation, and upregulated matrix metalloproteinase-9 activity. Interestingly, blocking such interactions using specific inhibitors (ATN161 for α5β1 and obtustatin for α1β1) negatively affected those pro-healing growth factors secretion. Macrophages depletion animal model significantly attenuated the healing effect of FDM-gel. This study demonstrates that the FDM-gel is an excellent immunomodulatory material that is permissive for host cells infiltration, resorbable with time, and interactive with macrophages, where it thus enables regenerative matrix remodeling toward a complete wound healing.
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Affiliation(s)
- Cininta Savitri
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Sang Su Ha
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Jae Won Kwon
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
| | - Sung Hoon Kim
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Young‐Min Kim
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
| | - Hyun Mee Park
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Haejin Kwon
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Mi Jung Ji
- Advanced Analysis and Data CenterKISTSeoul02792Republic of Korea
| | - Kwideok Park
- Center for BiomaterialsKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- Division of Bio‐Medical Science and Technology, KIST SchoolUniversity of Science and Technology (UST)Seoul02792Republic of Korea
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12
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Zhang Q, Lu C, Lu F, Liao Y, Cai J, Gao J. Challenges and opportunities in obesity: the role of adipocytes during tissue fibrosis. Front Endocrinol (Lausanne) 2024; 15:1365156. [PMID: 38686209 PMCID: PMC11056552 DOI: 10.3389/fendo.2024.1365156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
Obesity is a chronic disease that affects the energy balance of the whole body. In addition to increasing fat mass, tissue fibrosis occurred in white adipose tissue in obese condition. Fibrosis is the over-activation of fibroblasts leading to excessive accumulation of extracellular matrix, which could be caused by various factors, including the status of adipocytes. The morphology of adipocytes responds rapidly and dynamically to nutrient fluctuations. Adaptive hypertrophy of normal adipocytes protects peripheral organs from damage from lipotoxicity. However, the biological behavior of hypertrophic adipocytes in chronic obesity is abnormally altered. Adipocytes lead to fibrotic remodeling of the extracellular matrix by inducing unresolved chronic inflammation, persistent hypoxia, and increasing myofibroblast numbers. Moreover, adipocyte-induced fibrosis not only restricts the flexible expansion and contraction of adipose tissue but also initiates the development of various diseases through cellular autonomic and paracrine effects. Regarding anti-fibrotic therapy, dysregulated intracellular signaling and epigenetic changes represent potential candidate targets. Thus, modulation of adipocytes may provide potential therapeutic avenues for reversing pathological fibrosis in adipose tissue and achieving the anti-obesity purpose.
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Affiliation(s)
- Qian Zhang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chongxuan Lu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yunjun Liao
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Junrong Cai
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jianhua Gao
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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13
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Wang Y, Vizely K, Li CY, Shen K, Shakeri A, Khosravi R, Smith JR, Alteza EAII, Zhao Y, Radisic M. Biomaterials for immunomodulation in wound healing. Regen Biomater 2024; 11:rbae032. [PMID: 38779347 PMCID: PMC11110865 DOI: 10.1093/rb/rbae032] [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: 12/18/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 05/25/2024] Open
Abstract
The substantial economic impact of non-healing wounds, scarring, and burns stemming from skin injuries is evident, resulting in a financial burden on both patients and the healthcare system. This review paper provides an overview of the skin's vital role in guarding against various environmental challenges as the body's largest protective organ and associated developments in biomaterials for wound healing. We first introduce the composition of skin tissue and the intricate processes of wound healing, with special attention to the crucial role of immunomodulation in both acute and chronic wounds. This highlights how the imbalance in the immune response, particularly in chronic wounds associated with underlying health conditions such as diabetes and immunosuppression, hinders normal healing stages. Then, this review distinguishes between traditional wound-healing strategies that create an optimal microenvironment and recent peptide-based biomaterials that modulate cellular processes and immune responses to facilitate wound closure. Additionally, we highlight the importance of considering the stages of wounds in the healing process. By integrating advanced materials engineering with an in-depth understanding of wound biology, this approach holds promise for reshaping the field of wound management and ultimately offering improved outcomes for patients with acute and chronic wounds.
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Affiliation(s)
- Ying Wang
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Katrina Vizely
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
| | - Chen Yu Li
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
| | - Karen Shen
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Amid Shakeri
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Ramak Khosravi
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - James Ryan Smith
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
| | | | - Yimu Zhao
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
| | - Milica Radisic
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, ON M5G 2C4 Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
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14
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Peña OA, Martin P. Cellular and molecular mechanisms of skin wound healing. Nat Rev Mol Cell Biol 2024:10.1038/s41580-024-00715-1. [PMID: 38528155 DOI: 10.1038/s41580-024-00715-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/27/2024]
Abstract
Wound healing is a complex process that involves the coordinated actions of many different tissues and cell lineages. It requires tight orchestration of cell migration, proliferation, matrix deposition and remodelling, alongside inflammation and angiogenesis. Whereas small skin wounds heal in days, larger injuries resulting from trauma, acute illness or major surgery can take several weeks to heal, generally leaving behind a fibrotic scar that can impact tissue function. Development of therapeutics to prevent scarring and successfully repair chronic wounds requires a fuller knowledge of the cellular and molecular mechanisms driving wound healing. In this Review, we discuss the current understanding of the different phases of wound healing, from clot formation through re-epithelialization, angiogenesis and subsequent scar deposition. We highlight the contribution of different cell types to skin repair, with emphasis on how both innate and adaptive immune cells in the wound inflammatory response influence classically studied wound cell lineages, including keratinocytes, fibroblasts and endothelial cells, but also some of the less-studied cell lineages such as adipocytes, melanocytes and cutaneous nerves. Finally, we discuss newer approaches and research directions that have the potential to further our understanding of the mechanisms underpinning tissue repair.
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Affiliation(s)
- Oscar A Peña
- School of Biochemistry, University of Bristol, Bristol, UK.
| | - Paul Martin
- School of Biochemistry, University of Bristol, Bristol, UK.
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15
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Dutta A, Saha D, Jamora C. Approaches to Study Wound-Induced Hair Neogenesis (WIHN). Methods Mol Biol 2024. [PMID: 38499917 DOI: 10.1007/7651_2024_522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Embryonic wound repair proceeds with complete regeneration of the tissue without any scar formation, whereas tissue repair in adults usually results in scars and the tissue does not completely regain its preinjured state. Wound-induced hair neogenesis (WIHN) in adult rodents results in de novo hair follicle formation in the center of large wounds, mimicking regeneration processes seen in fetal tissue. The investigation of WIHN therefore provides a unique quantitative framework for scrutinizing the mechanistic underpinnings of regenerative repair, which can have clinical implications in the context of scarless healing. In this chapter, we present a detailed protocol for inducing wounds that lead to hair neogenesis in laboratory mice and facilitating the identification and characterization of distinct stages in neogenic hair follicle development. Additionally, we present a whole-mount alkaline phosphatase assay to distinguish de novo hair follicles. These protocols can facilitate studies toward obtaining a comprehensive understanding of WIHN and shedding light on the intricate molecular and cellular processes involved in mammalian regenerative repair.
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Affiliation(s)
- Abhik Dutta
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka, India
- School of Chemical and Biotechnology (SCBT), Shanmugha Arts, Science, Technology and Research Academy (SASTRA), Thanjavur, Tamil Nadu, India
| | - Dyuti Saha
- IFOM-inStem Joint Research Laboratory, Centre for Inflammation and Tissue Homeostasis, Institute for Stem Cell Science and Regenerative Medicine, Bangalore, Karnataka, India
- Department of Biology, Manipal Academy of Higher Education, Manipal, India
| | - Colin Jamora
- Department of Life Sciences, Shiv Nadar Institution of Eminence, Greater Noida, Uttar Pradesh, India.
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16
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Jussila A, Zhang B, Kirti S, Atit R. Tissue fibrosis associated depletion of lipid-filled cells. Exp Dermatol 2024; 33:e15054. [PMID: 38519432 PMCID: PMC10977660 DOI: 10.1111/exd.15054] [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: 10/03/2023] [Revised: 02/06/2024] [Accepted: 02/29/2024] [Indexed: 03/24/2024]
Abstract
Fibrosis is primarily described as the deposition of excessive extracellular matrix, but in many tissues it also involves a loss of lipid or lipid-filled cells. Lipid-filled cells are critical to tissue function and integrity in many tissues including the skin and lungs. Thus, loss or depletion of lipid-filled cells during fibrogenesis, has implications for tissue function. In some contexts, lipid-filled cells can impact ECM composition and stability, highlighting their importance in fibrotic transformation. Recent papers in fibrosis address this newly recognized fibrotic lipodystrophy phenomenon. Even in disparate tissues, common mechanisms are emerging to explain fibrotic lipodystrophy. These findings have implications for fibrosis in tissues composed of fibroblast and lipid-filled cell populations such as skin, lung, and liver. In this review, we will discuss the roles of lipid-containing cells, their reduction/loss during fibrotic transformation, and the mechanisms of that loss in the skin and lungs.
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Affiliation(s)
- Anna Jussila
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Brian Zhang
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Sakin Kirti
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Radhika Atit
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Dermatology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
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17
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Li Y, Long J, Zhang Z, Yin W. Insights into the unique roles of dermal white adipose tissue (dWAT) in wound healing. Front Physiol 2024; 15:1346612. [PMID: 38465261 PMCID: PMC10920283 DOI: 10.3389/fphys.2024.1346612] [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: 11/29/2023] [Accepted: 01/31/2024] [Indexed: 03/12/2024] Open
Abstract
Dermal white adipose tissue (dWAT) is a newly recognized layer of adipocytes within the reticular dermis of the skin. In many mammals, this layer is clearly separated by panniculus carnosus from subcutaneous adipose tissue (sWAT). While, they concentrated around the hair shaft and follicle, sebaceous gland, and arrector pili muscle, and forms a very specific cone geometry in human. Both the anatomy and the histology indicate that dWAT has distinct development and functions. Different from sWAT, the developmental origin of dWAT shares a common precursor with dermal fibroblasts during embryogenesis. Therefore, when skin injury happens and mature adipocytes in dWAT are exposed, they may undergo lipolysis and dedifferentiate into fibroblasts to participate in wound healing as embryogenetic stage. Studies using genetic strategies to selectively ablate dermal adipocytes observed delayed revascularization and re-epithelialization in wound healing. This review specifically summarizes the hypotheses of the functions of dWAT in wound healing. First, lipolysis of dermal adipocytes could contribute to wound healing by regulating inflammatory macrophage infiltration. Second, loss of dermal adipocytes occurs at the wound edge, and adipocyte-derived cells then become ECM-producing wound bed myofibroblasts during the proliferative phase of repair. Third, mature dermal adipocytes are rich resources for adipokines and cytokines and could release them in response to injury. In addition, the dedifferentiated dermal adipocytes are more sensitive to redifferentiation protocol and could undergo expansion in infected wound. We then briefly introduce the roles of dWAT in protecting the skin from environmental challenges: production of an antimicrobial peptide against infection. In the future, we believe there may be great potential for research in these areas: (1) taking advantage of the plasticity of dermal adipocytes and manipulating them in wound healing; (2) investigating the precise mechanism of dWAT expansion in infected wound healing.
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Affiliation(s)
| | | | | | - Wen Yin
- *Correspondence: Ziang Zhang, ; Wen Yin,
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18
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Li YY, Ji SF, Fu XB, Jiang YF, Sun XY. Biomaterial-based mechanical regulation facilitates scarless wound healing with functional skin appendage regeneration. Mil Med Res 2024; 11:13. [PMID: 38369464 PMCID: PMC10874556 DOI: 10.1186/s40779-024-00519-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 01/30/2024] [Indexed: 02/20/2024] Open
Abstract
Scar formation resulting from burns or severe trauma can significantly compromise the structural integrity of skin and lead to permanent loss of skin appendages, ultimately impairing its normal physiological function. Accumulating evidence underscores the potential of targeted modulation of mechanical cues to enhance skin regeneration, promoting scarless repair by influencing the extracellular microenvironment and driving the phenotypic transitions. The field of skin repair and skin appendage regeneration has witnessed remarkable advancements in the utilization of biomaterials with distinct physical properties. However, a comprehensive understanding of the underlying mechanisms remains somewhat elusive, limiting the broader application of these innovations. In this review, we present two promising biomaterial-based mechanical approaches aimed at bolstering the regenerative capacity of compromised skin. The first approach involves leveraging biomaterials with specific biophysical properties to create an optimal scarless environment that supports cellular activities essential for regeneration. The second approach centers on harnessing mechanical forces exerted by biomaterials to enhance cellular plasticity, facilitating efficient cellular reprogramming and, consequently, promoting the regeneration of skin appendages. In summary, the manipulation of mechanical cues using biomaterial-based strategies holds significant promise as a supplementary approach for achieving scarless wound healing, coupled with the restoration of multiple skin appendage functions.
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Affiliation(s)
- Ying-Ying Li
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Shuai-Fei Ji
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China
| | - Xiao-Bing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China.
| | - Yu-Feng Jiang
- Department of Tissue Regeneration and Wound Repair, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Xiao-Yan Sun
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, China.
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19
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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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20
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Zhang B, Chen T. Local and systemic mechanisms that control the hair follicle stem cell niche. Nat Rev Mol Cell Biol 2024; 25:87-100. [PMID: 37903969 DOI: 10.1038/s41580-023-00662-3] [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: 08/25/2023] [Indexed: 11/01/2023]
Abstract
Hair follicles are essential appendages of the mammalian skin, as hair performs vital functions of protection, thermoregulation and sensation. Hair follicles harbour exceptional regenerative abilities as they contain multiple somatic stem cell populations such as hair follicle stem cells (HFSCs) and melanocyte stem cells. Surrounding the stem cells and their progeny, diverse groups of cells and extracellular matrix proteins are organized to form a microenvironment (called 'niche') that serves to promote and maintain the optimal functioning of these stem cell populations. Recent studies have shed light on the intricate nature of the HFSC niche and its crucial role in regulating hair follicle regeneration. In this Review, we describe how the niche serves as a signalling hub, communicating, deciphering and integrating both local signals within the skin and systemic inputs from the body and environment to modulate HFSC activity. We delve into the recent advancements in identifying the cellular and molecular nature of the niche, providing a holistic perspective on its essential functions in hair follicle morphogenesis, regeneration and ageing.
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Affiliation(s)
- Bing Zhang
- School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China.
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
| | - Ting Chen
- National Institute of Biological Sciences, Beijing, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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21
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Xu F, Sun W, Ma W, Wang W, Kong D, Chan YK, Ma Q. All-aqueous microfluidic printing of multifunctional bioactive microfibers promote whole-stage wound healing. Colloids Surf B Biointerfaces 2024; 234:113720. [PMID: 38157763 DOI: 10.1016/j.colsurfb.2023.113720] [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: 08/15/2023] [Revised: 11/22/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Wound healing involves multi-stages of physiological responses, including hemostasis, inflammation, cell proliferation, and tissue remodeling. Satisfying all demands throughout different stages remains a rarely addressed challenge. Here we introduce an innovative all-aqueous microfluidic printing technique for fabricating multifunctional bioactive microfibers, effectively contributing to all four phases of the healing process. The distinctive feature of the developed microfibers lies in their capacity to be printed in a free-form manner in the aqueous-two phase system (ATPS). This is achieved through interfacial coacervation between alkyl-chitosan and alginate, with enhanced structural integrity facilitated by simultaneous crosslinking with calcium ions and alginate. The all-aqueous printed microfibers exhibit exceptional performance in terms of cell recruitment, blood cell coagulation, and hemostasis. The inclusion of a dodecyl carbon chain and amino groups in alkyl-chitosan imparts remarkable antimicrobial properties by anchoring to bacteria, complemented by potent antibacterial effects of encapsulated silver nanoparticles. Moreover, microfibers can load bioactive drugs like epidermal growth factor (EGF), preserving their activity and enhancing therapeutic effects during cell proliferation and tissue remodeling. With these sequential functions to guide the whole-stage wound healing, this work offers a versatile and robust paradigm for comprehensive wound treatment, holding great potential for optimal healing outcomes.
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Affiliation(s)
- Fenglan Xu
- Department of Clinical Pharmacy, The Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang 212001, China
| | - Wentao Sun
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao 266113, China
| | - Wenyuan Ma
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Weijiang Wang
- School of Pharmacy, Qingdao University, Qingdao 266071, China; The Shandong Consortium in the Yellow River Basin for Prevention, Treatment and Drug Development for Primary Diseases Related to Alcoholism, Qingdao University, Qingdao 266071, China
| | - Dejuan Kong
- Tongliao market detection and Testing Center, Tongliao 028000, China
| | - Yau Kei Chan
- Department of Ophthalmology, The University of Hong Kong, 999077 the Hong Kong Special Administrative Region of China
| | - Qingming Ma
- School of Pharmacy, Qingdao University, Qingdao 266071, China; The Shandong Consortium in the Yellow River Basin for Prevention, Treatment and Drug Development for Primary Diseases Related to Alcoholism, Qingdao University, Qingdao 266071, China.
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22
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Zhou Y, Cao T, Li Z, Qiao H, Dang E, Shao S, Wang G. Fibroblasts in immune-mediated inflammatory diseases: The soil of inflammation. Clin Immunol 2024; 258:109849. [PMID: 38008146 DOI: 10.1016/j.clim.2023.109849] [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: 07/09/2023] [Revised: 10/11/2023] [Accepted: 11/08/2023] [Indexed: 11/28/2023]
Abstract
As one of the most abundant stromal cells, fibroblasts are primarily responsible for the production and remodeling of the extracellular matrix. Traditionally, fibroblasts have been viewed as quiescent cells. However, recent advances in multi-omics technologies have demonstrated that fibroblasts exhibit remarkable functional diversity at the single-cell level. Additionally, fibroblasts are heterogeneous in their origins, tissue locations, and transitions with stromal cells. The dynamic nature of fibroblasts is further underscored by the fact that disease stages can impact their heterogeneity and behavior, particularly in immune-mediated inflammatory diseases such as psoriasis, inflammatory bowel diseases, and rheumatoid arthritis, etc. Fibroblasts can actively contribute to the disease initiation, progression, and relapse by responding to local microenvironmental signals, secreting downstream inflammatory factors, and interacting with immune cells during the pathological process. Here we focus on the development, plasticity, and heterogeneity of fibroblasts in inflammation, emphasizing the need for a developmental and dynamic perspective on fibroblasts.
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Affiliation(s)
- Yifan Zhou
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Tianyu Cao
- Department of Dermatology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Zhiguo Li
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Hongjiang Qiao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Erle Dang
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China
| | - Shuai Shao
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China.
| | - Gang Wang
- Department of Dermatology, Xijing hospital, Fourth Military Medical University, Xi'an, Shannxi 710032, China.
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23
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Yampolsky M, Bachelet I, Fuchs Y. Reproducible strategy for excisional skin-wound-healing studies in mice. Nat Protoc 2024; 19:184-206. [PMID: 38030941 DOI: 10.1038/s41596-023-00899-4] [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: 02/15/2023] [Accepted: 07/28/2023] [Indexed: 12/01/2023]
Abstract
Wound healing is a complex physiological process involving various cell types and signaling pathways. The capability to observe the dynamics of wound repair offers valuable insights into the effects of genetic modifications, pharmaceutical interventions or other experimental manipulations on the skin-repair process. Here, we provide a comprehensive protocol for a full-thickness, excisional skin-wound-healing assay in mice, which can easily be performed by any scientist who has received an animal welfare course certificate and can be completed within ~3 h, depending on the number of animals. Crucially, we highlight the importance of considering key aspects of the assay that can dramatically contribute to the reliability and reproducibility of these experiments. We thoroughly discuss the experimental design, necessary preparations, wounding technique and analysis. In addition, we discuss the use of lineage-tracing techniques to monitor cell migration, differentiation and the contribution of different cell populations to the repair process. Overall, we explore key aspects of the skin-wound-healing assay, supplying a detailed procedure and guidelines essential for decreasing variability and obtaining reliable and reproducible results.
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24
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Januszewski J, Forma A, Zembala J, Flieger M, Tyczyńska M, Dring JC, Dudek I, Świątek K, Baj J. Nutritional Supplements for Skin Health-A Review of What Should Be Chosen and Why. MEDICINA (KAUNAS, LITHUANIA) 2023; 60:68. [PMID: 38256329 PMCID: PMC10820017 DOI: 10.3390/medicina60010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024]
Abstract
Supplementation of micronutrients is considered to be crucial in the reinforcement of the skin's barrier. In this paper, 14 nutritional compounds commonly used in food or pharmaceutic industries were analyzed in terms of influencing skin conditions. The major objective of this paper was to provide a narrative review of the available literature regarding several chosen compounds that are currently widely recommended as supplements that aim to maintain proper and healthy skin conditions. We conducted a review of the literature from PubMed, Scopus, and Web of Science until September 2023 without any other restrictions regarding the year of the publication. Ultimately, we reviewed 238 articles, including them in this review. Each of the reviewed compounds, including vitamin A, vitamin C, vitamin D, vitamin E, curcumin, chlorella, Omega-3, biotin,Ppolypodium leucotomos, Simmondsia chinesis, gamma oryzanol, olive leaf extract, spirulina, and astaxanthin, was observed to present some possible effects with promising benefits for a skin condition, i.e., photoprotective radiation. Adding them to the diet or daily routine might have a positive influence on some skin inflammatory diseases such as atopic dermatitis or psoriasis. Further, UV radiation protection facilitated by some supplements and their impact on human cells might be helpful during chemotherapy or in preventing melanoma development. Further research is needed because of the lack of clear consensus regarding the doses of the described compounds that could provide desirable effects on the skin.
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Affiliation(s)
- Jacek Januszewski
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (J.J.); (M.T.); (J.C.D.); (K.Ś.)
| | - Alicja Forma
- Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland; (M.F.); (I.D.)
| | - Julita Zembala
- University Clinical Center, Medical University of Warsaw, Lindleya 4, 02-004 Warsaw, Poland;
| | - Michał Flieger
- Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland; (M.F.); (I.D.)
| | - Magdalena Tyczyńska
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (J.J.); (M.T.); (J.C.D.); (K.Ś.)
| | - James Curtis Dring
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (J.J.); (M.T.); (J.C.D.); (K.Ś.)
| | - Iga Dudek
- Department of Forensic Medicine, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland; (M.F.); (I.D.)
| | - Kamila Świątek
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (J.J.); (M.T.); (J.C.D.); (K.Ś.)
| | - Jacek Baj
- Chair and Department of Anatomy, Medical University of Lublin, 20-090 Lublin, Poland; (J.J.); (M.T.); (J.C.D.); (K.Ś.)
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Liu Z, Cai M, Ke H, Deng H, Ye W, Wang T, Chen Q, Cen S. Fibroblast Insights into the Pathogenesis of Ankylosing Spondylitis. J Inflamm Res 2023; 16:6301-6317. [PMID: 38149115 PMCID: PMC10750494 DOI: 10.2147/jir.s439604] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 12/03/2023] [Indexed: 12/28/2023] Open
Abstract
Purpose of the Review Emerging evidence has shown that ankylosing spondylitis fibroblasts (ASFs) act as crucial participants in inflammation and abnormal ossification in ankylosing spondylitis (AS). This review examines the investigations into ASFs and their pathological behavior, which contributes to inflammatory microenvironments and abnormal bone formation. The review spans the period from 2000 to 2023, with a primary focus on the most recent decade. Additionally, the review provides an in-depth discussion on studies on ASF ossification at the cellular level. Recent Findings ASFs organize immune functions by recruiting immune cells and influencing their differentiation and activation, thus mediate the inflammatory response in the early phase of disease. ASFs promote joint destruction at sites of cartilage and actively promote abnormal ossification by recruiting osteoblasts, differentiation into myofibroblasts or ossification directly. Many signaling pathways and cytokines such as Wnt signaling and BMP/TGF-β signaling are involved in ASF ossification. Summary ASFs play a key role in AS inflammation and osteogenesis. Further studies are required to elucidate molecular mechanisms behind that and provide new targets and directions for AS diagnosis and treatment from a new perspective of fibroblasts.
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Affiliation(s)
- Zhenhua Liu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Mingxi Cai
- The Second Clinical School, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Haoteng Ke
- The Second Clinical School, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Huazong Deng
- The Second Clinical School, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Weijia Ye
- The Second Clinical School, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Tao Wang
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Qifan Chen
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
| | - Shuizhong Cen
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People’s Republic of China
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26
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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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27
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Melchionna R, Trono P, Di Carlo A, Di Modugno F, Nisticò P. Transcription factors in fibroblast plasticity and CAF heterogeneity. J Exp Clin Cancer Res 2023; 42:347. [PMID: 38124183 PMCID: PMC10731891 DOI: 10.1186/s13046-023-02934-4] [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: 11/14/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
In recent years, research focused on the multifaceted landscape and functions of cancer-associated fibroblasts (CAFs) aimed to reveal their heterogeneity and identify commonalities across diverse tumors for more effective therapeutic targeting of pro-tumoral stromal microenvironment. However, a unified functional categorization of CAF subsets remains elusive, posing challenges for the development of targeted CAF therapies in clinical settings.The CAF phenotype arises from a complex interplay of signals within the tumor microenvironment, where transcription factors serve as central mediators of various cellular pathways. Recent advances in single-cell RNA sequencing technology have emphasized the role of transcription factors in the conversion of normal fibroblasts to distinct CAF subtypes across various cancer types.This review provides a comprehensive overview of the specific roles of transcription factor networks in shaping CAF heterogeneity, plasticity, and functionality. Beginning with their influence on fibroblast homeostasis and reprogramming during wound healing and fibrosis, it delves into the emerging insights into transcription factor regulatory networks. Understanding these mechanisms not only enables a more precise characterization of CAF subsets but also sheds light on the early regulatory processes governing CAF heterogeneity and functionality. Ultimately, this knowledge may unveil novel therapeutic targets for cancer treatment, addressing the existing challenges of stromal-targeted therapies.
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Affiliation(s)
- Roberta Melchionna
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, Rome, Italy.
| | - Paola Trono
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Rome, Italy
| | - Anna Di Carlo
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - Francesca Di Modugno
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - Paola Nisticò
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
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28
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Zheng Q, Ye N, Bao P, Wang T, Ma C, Chu M, Wu X, Kong S, Guo X, Liang C, Pan H, Yan P. Interpretation of the Yak Skin Single-Cell Transcriptome Landscape. Animals (Basel) 2023; 13:3818. [PMID: 38136855 PMCID: PMC10741061 DOI: 10.3390/ani13243818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
The morphogenesis of hair follicle structure is accompanied by the differentiation of skin tissue. Mammalian coats are produced by hair follicles. The formation of hair follicles requires signal transmission between the epidermis and dermis. However, knowledge of the transcriptional regulatory mechanism is still lacking. We used single-cell RNA sequencing to obtain 26,573 single cells from the scapular skin of yaks at hair follicle telogen and anagen stages. With the help of known reference marker genes, 11 main cell types were identified. In addition, we further analyzed the DP cell and dermal fibroblast lineages, drew a single-cell map of the DP cell and dermal fibroblast lineages, and elaborated the key genes, signals, and functions involved in cell fate decision making. The results of this study provide a very valuable resource for the analysis of the heterogeneity of DP cells and dermal fibroblasts in the skin and provide a powerful theoretical reference for further exploring the diversity of hair follicle cell types and hair follicle morphogenesis.
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Affiliation(s)
- Qingbo Zheng
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Na Ye
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Pengjia Bao
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Tong Wang
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Chaofan Ma
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Min Chu
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Xiaoyun Wu
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Siyuan Kong
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China;
| | - Xian Guo
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Chunnian Liang
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Heping Pan
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - Ping Yan
- Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China; (Q.Z.); (N.Y.); (P.B.); (T.W.); (C.M.); (M.C.); (X.W.); (X.G.); (C.L.)
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
- Institute of Western Agriculture, The Chinese Academy of Agricultural Sciences, Changji 831100, China
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29
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Sundaram VK, Schütza V, Schröter NH, Backhaus A, Bilsing A, Joneck L, Seelbach A, Mutschler C, Gomez-Sanchez JA, Schäffner E, Sánchez EE, Akkermann D, Paul C, Schwagarus N, Müller S, Odle A, Childs G, Ewers D, Kungl T, Sitte M, Salinas G, Sereda MW, Nave KA, Schwab MH, Ost M, Arthur-Farraj P, Stassart RM, Fledrich R. Adipo-glial signaling mediates metabolic adaptation in peripheral nerve regeneration. Cell Metab 2023; 35:2136-2152.e9. [PMID: 37989315 PMCID: PMC10722468 DOI: 10.1016/j.cmet.2023.10.017] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 08/21/2023] [Accepted: 10/30/2023] [Indexed: 11/23/2023]
Abstract
The peripheral nervous system harbors a remarkable potential to regenerate after acute nerve trauma. Full functional recovery, however, is rare and critically depends on peripheral nerve Schwann cells that orchestrate breakdown and resynthesis of myelin and, at the same time, support axonal regrowth. How Schwann cells meet the high metabolic demand required for nerve repair remains poorly understood. We here report that nerve injury induces adipocyte to glial signaling and identify the adipokine leptin as an upstream regulator of glial metabolic adaptation in regeneration. Signal integration by leptin receptors in Schwann cells ensures efficient peripheral nerve repair by adjusting injury-specific catabolic processes in regenerating nerves, including myelin autophagy and mitochondrial respiration. Our findings propose a model according to which acute nerve injury triggers a therapeutically targetable intercellular crosstalk that modulates glial metabolism to provide sufficient energy for successful nerve repair.
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Affiliation(s)
- Venkat Krishnan Sundaram
- Institute of Anatomy, Leipzig University, Leipzig, Germany; Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Vlad Schütza
- Institute of Anatomy, Leipzig University, Leipzig, Germany; Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | | | - Aline Backhaus
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Annika Bilsing
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Lisa Joneck
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Anna Seelbach
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Clara Mutschler
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0PY, UK
| | - Jose A Gomez-Sanchez
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain; Instituto de Neurociencias CSIC-UMH, San Juan de Alicante, Spain
| | - Erik Schäffner
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | | | - Dagmar Akkermann
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Christina Paul
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Nancy Schwagarus
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Silvana Müller
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Angela Odle
- Instituto de Neurociencias CSIC-UMH, San Juan de Alicante, Spain
| | - Gwen Childs
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Markham, AR, USA
| | - David Ewers
- Max Planck Institute of Experimental Medicine, Göttingen, Germany; Klinik für Neurologie, Universitätsmedizin Göttingen (UMG), Göttingen, Germany
| | - Theresa Kungl
- Institute of Anatomy, Leipzig University, Leipzig, Germany
| | - Maren Sitte
- NGS-Integrative Genomics Core Unit (NIG), Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Gabriela Salinas
- NGS-Integrative Genomics Core Unit (NIG), Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Michael W Sereda
- Max Planck Institute of Experimental Medicine, Göttingen, Germany; Klinik für Neurologie, Universitätsmedizin Göttingen (UMG), Göttingen, Germany
| | - Klaus-Armin Nave
- Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | - Markus H Schwab
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Mario Ost
- Institute of Anatomy, Leipzig University, Leipzig, Germany; Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany
| | - Peter Arthur-Farraj
- John Van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0PY, UK
| | - Ruth M Stassart
- Paul Flechsig Institute of Neuropathology, University Clinic Leipzig, Leipzig, Germany.
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30
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Satzinger S, Willenborg S, Ding X, Klose CSN, Radtke D, Voehringer D, Eming SA. Type 2 Immunity Regulates Dermal White Adipose Tissue Function. J Invest Dermatol 2023; 143:2456-2467.e5. [PMID: 37295491 DOI: 10.1016/j.jid.2023.05.017] [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: 05/13/2022] [Revised: 04/19/2023] [Accepted: 05/09/2023] [Indexed: 06/12/2023]
Abstract
Type 2 immune responses have been increasingly linked with tissue maintenance, regeneration, and metabolic homeostasis. The molecular basis of regulator and effector mechanisms of type 2 immunity in skin regeneration and homeostasis is still lacking. In this study, we analyzed the role of IL-4Rα signaling in the regeneration of diverse cellular compartments in the skin. Mutants with global IL-4Rα deficiency showed two major phenotypes: first, a pronounced atrophy of the interfollicular epidermis, and second, a significant increase in dermal white adipose tissue thickness in mice aged 3 weeks (postnatal day 21) compared with littermate controls. Notably, IL-4Rα deficiency decreased the activation of hormone-sensitive lipase, a rate-limiting step in lipolysis. Immunohistochemical and FACS analysis in IL-4/enhanced GFP reporter mice showed that IL-4 expression peaked on postnatal day 21 and that eosinophils are the predominant IL-4-expressing cells. Eosinophil-deficient mice recapitulated the lipolytic-defective dermal white adipose tissue phenotype of Il4ra-deficient mice, showing that eosinophils are necessary for dermal white adipose tissue lipolysis. Collectively, we provide mechanistic insights into the regulation of interfollicular epidermis and hormone-sensitive lipase-mediated lipolysis in dermal white adipose tissue in early life by IL-4Rα, and our findings show that eosinophils play a critical role in this process.
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Affiliation(s)
| | | | - Xiaolei Ding
- Department of Dermatology, University of Cologne, Cologne, Germany; Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China; Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai, China
| | - Christoph S N Klose
- Department of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Daniel Radtke
- Department of Infection Biology, University Hospital Erlangen and Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - David Voehringer
- Department of Infection Biology, University Hospital Erlangen and Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sabine A Eming
- Department of Dermatology, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany; Institute of Zoology, Developmental Biology Unit, University of Cologne, Cologne, Germany.
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31
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Lei M, Jiang J, Wang M, Wu W, Zhang J, Liu W, Zhou W, Lai YC, Jiang TX, Widelitz RB, Harn HIC, Yang L, Chuong CM. Epidermal-dermal coupled spheroids are important for tissue pattern regeneration in reconstituted skin explant cultures. NPJ Regen Med 2023; 8:65. [PMID: 37996466 PMCID: PMC10667216 DOI: 10.1038/s41536-023-00340-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 11/09/2023] [Indexed: 11/25/2023] Open
Abstract
Tissue patterning is critical for the development and regeneration of organs. To advance the use of engineered reconstituted skin organs, we study cardinal features important for tissue patterning and hair regeneration. We find they spontaneously form spheroid configurations, with polarized epidermal cells coupled with dermal cells through a newly formed basement membrane. Functionally, the spheroid becomes competent morphogenetic units (CMU) that promote regeneration of tissue patterns. The emergence of new cell types and molecular interactions during CMU formation was analyzed using scRNA-sequencing. Surprisingly, in newborn skin explants, IFNr signaling can induce apical-basal polarity in epidermal cell aggregates. Dermal-Tgfb induces basement membrane formation. Meanwhile, VEGF signaling mediates dermal cell attachment to the epidermal cyst shell, thus forming a CMU. Adult mouse and human fetal scalp cells fail to form a CMU but can be restored by adding IFNr or VEGF to achieve hair regeneration. We find different multi-cellular configurations and molecular pathways are used to achieve morphogenetic competence in developing skin, wound-induced hair neogenesis, and reconstituted explant cultures. Thus, multiple paths can be used to achieve tissue patterning. These insights encourage more studies of "in vitro morphogenesis" which may provide novel strategies to enhance regeneration.
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Affiliation(s)
- Mingxing Lei
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China.
- Integrative Stem Cell Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan.
| | - Jingwei Jiang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Mengyue Wang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Wang Wu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Jinwei Zhang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Wanqian Liu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Wei Zhou
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Yung-Chih Lai
- Integrative Stem Cell Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan
| | - Ting-Xin Jiang
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Randall B Widelitz
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Hans I-Chen Harn
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology of Ministry of Education & 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Cheng-Ming Chuong
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA.
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32
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Yao L, Jeong S, Kwon HR, Olson LE. Regulation of adipocyte dedifferentiation at the skin wound edge. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.22.568302. [PMID: 38045303 PMCID: PMC10690246 DOI: 10.1101/2023.11.22.568302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Adipocytes have diverse roles in energy storage and metabolism, inflammation, and tissue repair. Mature adipocytes have been assumed to be terminally differentiated cells. However, recent evidence suggests that adipocytes retain substantial phenotypic plasticity, with potential to dedifferentiate into fibroblast-like cells under physiological and pathological conditions. Here, we develop a two-step lineage tracing approach based on the observation that fibroblasts express platelet-derived growth factor receptor alpha ( Pdgfra ) while adipocytes express Adiponectin ( Adipoq ) but not Pdgfra . Our approach specifically traces Pdgfra + cells that originate from Adipoq + adipocytes. We find many traced adipocytes and fibroblast-like cells surrounding skin wounds, but only a few traced cells localize to the wound center. In agreement with adipocyte plasticity, traced adipocytes incorporate EdU, downregulate Plin1 and PPARγ, and upregulate αSMA. We also investigate the role of potential dedifferentiation signals using constitutively active PDGFRα mutation, Pdgfra knockout, or Tgfbr2 knockout models. We find that PDGF and TGFβ signaling both promote dedifferentiation, and PDGFRα does so independently of TGFβR2. These results demonstrate an intersectional genetic approach to trace the hybrid cell phenotype of Pdgfra + adipocytes, which may be important for wound repair, regeneration and fibrosis.
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33
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Chen FZ, Tan PC, Yang Z, Li Q, Zhou SB. Identifying characteristics of dermal fibroblasts in skin homeostasis and disease. Clin Exp Dermatol 2023; 48:1317-1327. [PMID: 37566911 DOI: 10.1093/ced/llad257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023]
Abstract
Heterogeneous dermal fibroblasts are the main components that constitute the dermis. Distinct fibroblast subgroups show specific characteristics and functional plasticity that determine dermal structure during skin development and wound healing. Although researchers have described the roles of fibroblast subsets, this is not completely understood. We review recent evidence supporting understanding about the heterogeneity of fibroblasts. We summarize the origins and the identified profiles of fibroblast subpopulations. The characteristics of fibroblast subpopulations in both healthy and diseased states are highlighted, and the potential of subpopulations to be involved in wound healing in different ways was discussed. Additionally, we review the plasticity of subpopulations and the underlying signalling mechanisms. This review may provide greater insights into potential novel therapeutic targets and tissue regeneration strategies for the future.
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Affiliation(s)
- Fang-Zhou Chen
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Poh-Ching Tan
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Zihan Yang
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
- Department of Plastic and Burn Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Qingfeng Li
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
| | - Shuang-Bai Zhou
- Department of Plastic & Reconstructive Surgery, Shanghai Jiao Tong University School of Medicine Affiliated Ninth People's Hospital, Shanghai, China
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34
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Cai Y, Tian J, Li J, Liu X, Li F, Zhang L, Xiao S, Jia C, Deng C. A novel combined technology for treating hypertrophic scars: adipose tissue extract combined with fractional CO 2 laser. Front Physiol 2023; 14:1284312. [PMID: 37965106 PMCID: PMC10642933 DOI: 10.3389/fphys.2023.1284312] [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: 08/28/2023] [Accepted: 10/17/2023] [Indexed: 11/16/2023] Open
Abstract
Introduction: Owing to the need for liposuction and its unsuitability for allogeneic transplantation, the clinical application of stromal vascular fraction gel (SVF-gel) combined with fractional CO2 laser for scar treatment is limited. Adipose tissue extract (ATE), rich in cytokines and growth factors, offers a more convenient option for clinical practice as it can be easily prepared using purely physical methods and has low immunogenicity. We aimed to evaluate the effectiveness of ATE combined with fractional CO2 laser in the treatment of hypertrophic scars. Methods: ATE was prepared using discarded liposuction fluid from patients undergoing liposuction. A rabbit ear hypertrophic scar model was established and treated with ATE, fractional CO2 laser, or a combination. PBS was used as a control. The scar appearance and histological changes were observed. The immunohistochemistry method was used to evaluate the expression of α-SMA, while perilipin was detected using immunofluorescence. Additionally, the level of adipogenic signal C/EBPα and PPARγ mRNA was studied. Results: Following treatment, the volume of hypertrophic scar decreased, resulting in a softer texture and thinner dermis. Additionally, there was a decrease in the infiltration of inflammatory cells, and the collagen arrangement became looser and more regular, and the expression of α-SMA also decreased, with the combination of ATE and fractional laser showing the most significant improvement. Moreover, the combination group was found to promote subcutaneous fat regeneration and increase the expression of adipogenic signals C/EBPα and PPARγ. Conclusion: The combination of ATE and fractional CO2 laser treatment has been shown to inhibit the development of hypertrophic scars. This effect may be attributed to the enhancement of adipogenesis and decrease in collagen deposition.
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Affiliation(s)
- Yuan Cai
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jiao Tian
- Department of Surgery, Zunyi Medical College, Zunyi, Guizhou, China
- Department of Clinical Medicine, Zunyi Medical College, Zunyi, Guizhou, China
| | - Jianyi Li
- Department of Burns and Plastic Surgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi, China
| | - Xing Liu
- Department of Burns and Plastic Surgery, Afliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Fang Li
- Department of Dermatology, Guiyang First People’s Hospital, Guiyang, Guizhou, China
| | - Lanfang Zhang
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Shune Xiao
- Department of Burns and Plastic Surgery, Afliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Changsha Jia
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Chengliang Deng
- Department of Burns and Plastic Surgery, Afliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
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35
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Liu W, Zu L, Wang S, Li J, Fei X, Geng M, Zhu C, Shi H. Tailored biomedical materials for wound healing. BURNS & TRAUMA 2023; 11:tkad040. [PMID: 37899884 PMCID: PMC10605015 DOI: 10.1093/burnst/tkad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 05/25/2023] [Accepted: 06/30/2023] [Indexed: 10/31/2023]
Abstract
Wound healing is a long-term, multi-stage biological process that mainly includes haemostatic, inflammatory, proliferative and tissue remodelling phases. Controlling infection and inflammation and promoting tissue regeneration can contribute well to wound healing. Smart biomaterials offer significant advantages in wound healing because of their ability to control wound healing in time and space. Understanding how biomaterials are designed for different stages of wound healing will facilitate future personalized material tailoring for different wounds, making them beneficial for wound therapy. This review summarizes the design approaches of biomaterials in the field of anti-inflammatory, antimicrobial and tissue regeneration, highlights the advanced precise control achieved by biomaterials in different stages of wound healing and outlines the clinical and practical applications of biomaterials in wound healing.
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Affiliation(s)
- Wenhui Liu
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Lihua Zu
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
| | - Shanzheng Wang
- Department of Orthopaedics, Zhongda Hospital, Medical School of Southeast University, 87 Ding Jia Qiao Road, Nanjing, Jiangsu 210009, P.R. China
| | - Jingyao Li
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Xiaoyuan Fei
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Meng Geng
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Chunlei Zhu
- Department of Orthopaedics, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
| | - Hui Shi
- Clinical laboratory, Affiliated Aoyang Hospital of Jiangsu University, 279 Jingang Road, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Institute of Stem Cell, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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36
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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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37
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Guo Y, Hu Z, Chen J, Zhang J, Fan Z, Qu Q, Miao Y. Feasibility of adipose-derived therapies for hair regeneration: Insights based on signaling interplay and clinical overview. J Am Acad Dermatol 2023; 89:784-794. [PMID: 34883154 DOI: 10.1016/j.jaad.2021.11.058] [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: 02/17/2021] [Revised: 09/13/2021] [Accepted: 11/30/2021] [Indexed: 11/22/2022]
Abstract
Dermal white adipose tissue (dWAT) is a dynamic component of the skin and closely interacts with the hair follicle. Interestingly, dWAT envelops the hair follicle during anagen and undergoes fluctuations in volume throughout the hair cycle. dWAT-derived extracellular vesicles can significantly regulate the hair cycle, and this provides a theoretical basis for utilizing adipose tissue as a feasible clinical strategy to treat hair loss. However, the amount and depth of the available literature are far from enough to fully elucidate the prominent role of dWAT in modulating the hair growth cycle. This review starts by investigating the hair cycle-coupled dWAT remodeling and the reciprocal signaling interplay underneath. Then, it summarizes the current literature and assesses the advantages and limitations of clinical research utilizing adipose-derived therapies for hair regeneration.
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Affiliation(s)
- Yilong Guo
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jian Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jiarui Zhang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zhexiang Fan
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Qian Qu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
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38
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Walendzik K, Kopcewicz M, Wiśniewska J, Opyd P, Machcińska-Zielińska S, Gawrońska-Kozak B. Dermal white adipose tissue development and metabolism: The role of transcription factor Foxn1. FASEB J 2023; 37:e23171. [PMID: 37682531 DOI: 10.1096/fj.202300873rr] [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: 05/02/2023] [Revised: 08/10/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023]
Abstract
Intradermal adipocytes form dermal white adipose tissue (dWAT), a unique fat depot localized in the lower layer of the dermis. However, recognition of molecular factors regulating dWAT development, homeostasis, and bioactivity is limited. Using Foxn1-/- and Foxn1+/+ mice, we demonstrated that epidermally expressed Foxn1 regulates dWAT development and defines the adipogenic capacity of dermal fibroblasts. In intact and post-wounded skin, Foxn1 contributes to the initial stimulation of dWAT adipogenesis and participates in the modulation of lipid metabolism processes. Furthermore, Foxn1 activity strengthens adipogenic processes through Bmp2 and Igf2 signaling and regulates lipid metabolism in differentiated dermal fibroblasts. The results reveal the contribution of Foxn1 to dWAT metabolism, thus identifying possible targets for modulation and regulation of dWAT in physiological and pathological processes in the skin.
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Affiliation(s)
- Katarzyna Walendzik
- Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Marta Kopcewicz
- Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Joanna Wiśniewska
- Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Paulina Opyd
- Department of Animal Nutrition and Feed Science, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Sylwia Machcińska-Zielińska
- Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Barbara Gawrońska-Kozak
- Biological Function of Food, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
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39
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Singh P, Ali SA. Mature white adipocyte plasticity during mammary gland remodelling and cancer. CELL INSIGHT 2023; 2:100123. [PMID: 37771567 PMCID: PMC10522874 DOI: 10.1016/j.cellin.2023.100123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 09/30/2023]
Abstract
Mammary gland growth and differentiation predominantly rely on stromal-epithelial cellular communication. Specifically, mammary adipocytes play a crucial role in ductal morphogenesis, as well as in the proliferation and differentiation of mammary epithelial cells. The process of lactation entails a reduction in the levels of white adipose tissue associated with the MG, allowing for the expansion of milk-producing epithelial cells. Subsequently, during involution and the regression of the milk-producing unit, adipocyte layers resurface, occupying the vacated space. This dynamic phenomenon underscores the remarkable plasticity and expansion of adipose tissue. Traditionally considered terminally differentiated, adipocytes have recently been found to exhibit plasticity in certain contexts. Unraveling the significance of this cell type within the MG could pave the way for novel approaches to reduce the risk of breast cancer and enhance lactation performance. Moreover, a comprehensive understanding of adipocyte trans- and de-differentiation processes holds promise for the development of innovative therapeutic interventions targeting cancer, fibrosis, obesity, type 2 diabetes, and other related diseases. Additionally, adipocytes may find utility in the realm of regenerative medicine. This review article provides a comprehensive examination of recent advancements in our understanding of MG remodelling, with a specific focus on the tissue-specific functions of adipocytes and their role in the development of cancer. By synthesizing current knowledge in this field, it aims to consolidate our understanding of adipocyte biology within the context of mammary gland biology, thereby fostering further research and discovery in this vital area.
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Affiliation(s)
- Parul Singh
- Cell Biology and Proteomics Lab, Animal Biotechnology Center, ICAR-NDRI, 132001, India
- Division of Radiation Oncology, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Syed Azmal Ali
- Cell Biology and Proteomics Lab, Animal Biotechnology Center, ICAR-NDRI, 132001, India
- Division Proteomics of Stem Cells and Cancer, German Cancer Research Center, 69120, Heidelberg, Germany
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40
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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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Sänger CS, Cernakova M, Wietecha MS, Garau Paganella L, Labouesse C, Dudaryeva OY, Roubaty C, Stumpe M, Mazza E, Tibbitt MW, Dengjel J, Werner S. Serine protease 35 regulates the fibroblast matrisome in response to hyperosmotic stress. SCIENCE ADVANCES 2023; 9:eadh9219. [PMID: 37647410 PMCID: PMC10468140 DOI: 10.1126/sciadv.adh9219] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/28/2023] [Indexed: 09/01/2023]
Abstract
Hyperosmotic stress occurs in several diseases, but its long-term effects are largely unknown. We used sorbitol-treated human fibroblasts in 3D culture to study the consequences of hyperosmotic stress in the skin. Sorbitol regulated many genes, which help cells cope with the stress condition. The most robustly regulated gene encodes serine protease 35 (PRSS35). Its regulation by hyperosmotic stress was dependent on the kinases p38 and JNK and the transcription factors NFAT5 and ATF2. We identified different collagens and collagen-associated proteins as putative PRSS35 binding partners. This is functionally important because PRSS35 affected the extracellular matrix proteome, which limited cell proliferation. The in vivo relevance of these findings is reflected by the coexpression of PRSS35 and its binding partners in human skin wounds, where hyperosmotic stress occurs as a consequence of excessive water loss. These results identify PRSS35 as a key regulator of the matrisome under hyperosmotic stress conditions.
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Affiliation(s)
- Catharina S. Sänger
- Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Otto-Stern-Weg 7, 8093 Zurich, Switzerland
| | - Martina Cernakova
- Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Otto-Stern-Weg 7, 8093 Zurich, Switzerland
| | - Mateusz S. Wietecha
- Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Otto-Stern-Weg 7, 8093 Zurich, Switzerland
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Lorenza Garau Paganella
- Institute for Mechanical Systems, Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
- Institute for Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland
| | - Céline Labouesse
- Institute for Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland
| | - Oksana Y. Dudaryeva
- Institute for Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland
| | - Carole Roubaty
- Faculty of Science and Medicine, Department of Biology, University of Fribourg, Ch. du Musée 10, 1700 Fribourg, Switzerland
| | - Michael Stumpe
- Faculty of Science and Medicine, Department of Biology, University of Fribourg, Ch. du Musée 10, 1700 Fribourg, Switzerland
| | - Edoardo Mazza
- Institute for Mechanical Systems, Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Mark W. Tibbitt
- Institute for Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland
| | - Jörn Dengjel
- Faculty of Science and Medicine, Department of Biology, University of Fribourg, Ch. du Musée 10, 1700 Fribourg, Switzerland
| | - Sabine Werner
- Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Otto-Stern-Weg 7, 8093 Zurich, Switzerland
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Wang J, Duan Z, Chen X, Li M. The immune function of dermal fibroblasts in skin defence against pathogens. Exp Dermatol 2023; 32:1326-1333. [PMID: 37387265 DOI: 10.1111/exd.14858] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023]
Abstract
Dermal fibroblasts are the main resident cells of the dermis. They have several significant functions related to wound healing, extracellular matrix production and hair cycling. Dermal fibroblasts can also act as sentinels in defence against infection. They express pattern recognition receptors such as toll-like receptors to sense pathogen components, followed by the synthesis of pro-inflammatory cytokines (including IL-6, IFN-β and TNF-α), chemokines (such as IL-8 and CXCL1) and antimicrobial peptides. Dermal fibroblasts also secrete other molecules-like growth factors and matrix metalloproteinases to benefit tissue repair from infection. Crosstalk between dermal fibroblasts and immune cells may amplify the immune response against infection. Moreover, the transition of a certain adipogenic fibroblasts to adipocytes protects skin from bacterial infection. Together, we discuss the role of dermal fibroblasts in the war against pathogens in this review. Dermal fibroblasts have important immune functions in anti-infection immunity, which should not be overlooked.
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Affiliation(s)
- Jianing Wang
- Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Zhimin Duan
- Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Xu Chen
- Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Min Li
- Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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Ziegler ME, Staben A, Lem M, Pham J, Alaniz L, Halaseh FF, Obagi S, Leis A, Widgerow AD. Targeting Myofibroblasts as a Treatment Modality for Dupuytren Disease. J Hand Surg Am 2023; 48:914-922. [PMID: 37480917 DOI: 10.1016/j.jhsa.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/13/2023] [Accepted: 04/13/2023] [Indexed: 07/24/2023]
Abstract
PURPOSE Currently, no treatment corrects the contractile nature of Dupuytren myofibroblasts (DMFs) or prevents recurrence following surgery. Antifibrotic and proadipogenic growth factors are released when adipose-derived stem cells (ASCs) are cultured with platelet-rich plasma (PRP), a platelet concentration from whole blood. Reprograming myofibroblasts into adipocytes via growth factors is proposed as a powerful potential tool to target fibrosis. We aimed to assess whether the combination of ASCs and PRP reprograms DMFs into adipocytes in vitro and alters their contractile nature in vivo. METHODS Normal human dermal fibroblasts (NHDFs) and DMFs from Dupuytren patients were isolated and cocultured with ASCs and PRP either alone or together. Adipocytes were detected by Oil Red O and perilipin staining. DMFs and NHDFs were transplanted into the forepaws of rats (Rowett Nude [rnu/rnu]) and treated with saline, PRP+ASCs, or collagenase Clostridium histolyticum (clinical comparison) 2 months later. After 2 weeks, the tissue was harvested and subjected to Masson trichrome staining, and collagen I and III and alpha-smooth muscle actin detection by immunohistochemistry. RESULTS Myofibroblasts transform into adipocytes upon coculture with PRP+ASCs. DMFs show increased alpha-smooth muscle actin expression in vivo compared with NHDFs, which is significantly decreased after PRP+ASCs and collagenase Clostridium histolyticum treatments. DMFs induce collagen I and III expressions in rat paws compared with NHDFs, with a type III to I ratio increase. Treatment with PRP+ASC reduced the ratio, but collagenase Clostridium histolyticum did not. CONCLUSIONS Treating DMFs with PRP+ASCs provides factors that induce myofibroblast to adipocyte transformation. This treatment reduces the contractile phenotype and fibrosis markers in vivo. Future studies should detail the mechanism of this conversion. CLINICAL RELEVANCE The combination of PRP and ASCs to induce the differentiation of DMFs into adipocytes may serve to limit surgery to a percutaneous contracture release and biological injection, rather than a moderate or radical fasciectomy, and reduce the recurrence of Dupuytren contracture.
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Affiliation(s)
- Mary E Ziegler
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Andres Staben
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Melinda Lem
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Jason Pham
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Leonardo Alaniz
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Faris F Halaseh
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Sabine Obagi
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Amber Leis
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA
| | - Alan D Widgerow
- Center for Tissue Engineering, Department of Plastic Surgery, University of California, Orange, CA.
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Sawaya AP, Vecin NM, Burgess JL, Ojeh N, DiBartolomeo G, Stone RC, Pastar I, Tomic-Canic M. Calreticulin: a multifunctional protein with potential therapeutic applications for chronic wounds. Front Med (Lausanne) 2023; 10:1207538. [PMID: 37692787 PMCID: PMC10484228 DOI: 10.3389/fmed.2023.1207538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
Calreticulin is recognized as a multifunctional protein that serves an essential role in diverse biological processes that include wound healing, modification and folding of proteins, regulation of the secretory pathway, cell motility, cellular metabolism, protein synthesis, regulation of gene expression, cell cycle regulation and apoptosis. Although the role of calreticulin as an endoplasmic reticulum-chaperone protein has been well described, several studies have demonstrated calreticulin to be a highly versatile protein with an essential role during wound healing. These features make it an ideal molecule for treating a complex, multifactorial diseases that require fine tuning, such as chronic wounds. Indeed, topical application of recombinant calreticulin to wounds in multiple models of wound healing has demonstrated remarkable pro-healing effects. Among them include enhanced keratinocyte and fibroblast migration and proliferation, induction of extracellular matrix proteins, recruitment of macrophages along with increased granulation tissue formation, all of which are important functions in promoting wound healing that are deregulated in chronic wounds. Given the high degree of diverse functions and pro-healing effects, application of exogenous calreticulin warrants further investigation as a potential novel therapeutic option for chronic wound patients. Here, we review and highlight the significant effects of topical application of calreticulin on enhancing wound healing and its potential as a novel therapeutic option to shift chronic wounds into healing, acute-like wounds.
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Affiliation(s)
- Andrew P. Sawaya
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Nicole M. Vecin
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Jamie L. Burgess
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Nkemcho Ojeh
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
- Faculty of Medical Sciences, The University of the West Indies, Bridgetown, Barbados
| | - Gabrielle DiBartolomeo
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Rivka C. Stone
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Irena Pastar
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Marjana Tomic-Canic
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
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Liang Z, He Y, Tang H, Li J, Cai J, Liao Y. Dedifferentiated fat cells: current applications and future directions in regenerative medicine. Stem Cell Res Ther 2023; 14:207. [PMID: 37605289 PMCID: PMC10441730 DOI: 10.1186/s13287-023-03399-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 06/13/2023] [Indexed: 08/23/2023] Open
Abstract
Stem cell therapy is the most promising treatment option for regenerative medicine. Therapeutic effect of different stem cells has been verified in various disease model. Dedifferentiated fat (DFAT) cells, derived from mature adipocytes, are induced pluripotent stem cells. Compared with ASCs and other stem cells, the DFAT cells have unique advantageous characteristics in their abundant sources, high homogeneity, easily harvest and low immunogenicity. The DFAT cells have shown great potential in tissue engineering and regenerative medicine for the treatment of clinical problems such as cardiac and kidney diseases, autoimmune disease, soft and hard tissue defect. In this review, we summarize the current understanding of DFAT cell properties and focus on the relevant practical applications of DFAT cells in cell therapy in recent years.
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Affiliation(s)
- Zhuokai Liang
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yufei He
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Haojing Tang
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jian Li
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Junrong Cai
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Yunjun Liao
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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Cherkashina OL, Morgun EI, Rippa AL, Kosykh AV, Alekhnovich AV, Stoliarzh AB, Terskikh VV, Vorotelyak EA, Kalabusheva EP. Blank Spots in the Map of Human Skin: The Challenge for Xenotransplantation. Int J Mol Sci 2023; 24:12769. [PMID: 37628950 PMCID: PMC10454653 DOI: 10.3390/ijms241612769] [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: 06/28/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Most of the knowledge about human skin homeostasis, development, wound healing, and diseases has been accumulated from human skin biopsy analysis by transferring from animal models and using different culture systems. Human-to-mouse xenografting is one of the fundamental approaches that allows the skin to be studied in vivo and evaluate the ongoing physiological processes in real time. Humanized animals permit the actual techniques for tracing cell fate, clonal analysis, genetic modifications, and drug discovery that could never be employed in humans. This review recapitulates the novel facts about mouse skin self-renewing, regeneration, and pathology, raises issues regarding the gaps in our understanding of the same options in human skin, and postulates the challenges for human skin xenografting.
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Affiliation(s)
- Olga L. Cherkashina
- Laboratory of Cell Biology, Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Elena I. Morgun
- Laboratory of Cell Biology, Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Alexandra L. Rippa
- Laboratory of Cell Biology, Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Anastasiya V. Kosykh
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Alexander V. Alekhnovich
- Federal Government-Financed Institution “National Medical Research Center of High Medical Technologies n.a. A.A. Vishnevsky”, 143421 Krasnogorsk, Russia
| | - Aleksey B. Stoliarzh
- Federal Government-Financed Institution “National Medical Research Center of High Medical Technologies n.a. A.A. Vishnevsky”, 143421 Krasnogorsk, Russia
| | - Vasiliy V. Terskikh
- Laboratory of Cell Biology, Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Ekaterina A. Vorotelyak
- Laboratory of Cell Biology, Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Ekaterina P. Kalabusheva
- Laboratory of Cell Biology, Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
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Zhao Y, Liu J, Liu S, Yang P, Liang Y, Ma J, Mao S, Sun C, Yang Y. Fibroblast exosomal TFAP2C induced by chitosan oligosaccharides promotes peripheral axon regeneration via the miR-132-5p/CAMKK1 axis. Bioact Mater 2023; 26:249-263. [PMID: 36936807 PMCID: PMC10020534 DOI: 10.1016/j.bioactmat.2023.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/03/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Chitosan and its degradation product, oligosaccharides, have been shown to facilitate peripheral nerve regeneration. However, the underlying mechanisms are not well understood. In this study, we analyzed the protein expression profiles in sciatic nerves after injury using proteomics. A group of proteins related to exosome packaging and transport is up-regulated by chitosan oligosaccharides (COS), implying that exosomes are involved in COS-induced peripheral nerve regeneration. In fact, exosomes derived from fibroblasts (f-EXOs) treated with COS significantly promoted axon extension and regeneration. Exosomal protein identification and functional studies, revealed that TFAP2C is a key factor in neurite outgrowth induced by COS-f-EXOs. Furthermore, we showed that TFAP2C targets the pri-miRNA-132 gene and represses miR-132-5p expression in dorsal root ganglion neurons. Camkk1 is a downstream substrate of miR-132-5p that positively affects axon extension. In rats, miR-132-5p antagomir stimulates CAMKK1 expression and improves axon regeneration and functional recovery in sciatic nerves after injury. Our data reveal the mechanism for COS in axon regeneration, that is COS induce fibroblasts to produce TFAP2C-enriched EXOs, which are then transferred into axons to promote axon regeneration via miR-132-5p/CAMKK1. Moreover, these results show a new facet of fibroblasts in axon regeneration in peripheral nerves.
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Affiliation(s)
- Yahong Zhao
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Jina Liu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Sha Liu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Panpan Yang
- School of Medicine, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Yunyun Liang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Jinyu Ma
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Susu Mao
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
- Corresponding author.
| | - Yumin Yang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
- Corresponding author.
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Yuan Y, Shi Z, Xiong S, Hu R, Song Q, Song Z, Ong SG, Jiang Y. Differential roles of insulin receptor in adipocyte progenitor cells in mice. Mol Cell Endocrinol 2023; 573:111968. [PMID: 37244600 PMCID: PMC10846871 DOI: 10.1016/j.mce.2023.111968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/29/2023]
Abstract
The development of white adipose tissue (WAT) occurs during distinct embryonic and postnatal stages, and it is subsequently maintained throughout life. However, the specific mediators and mechanisms responsible for WAT development during different phases remain unclear. In this study, we investigate the role of the insulin receptor (IR) in regulating adipogenesis and adipocyte function within adipocyte progenitor cells (APCs) during WAT development and homeostasis. We use two in vivo adipose lineage tracking and deletion systems to delete IR either in embryonic APCs or adult APCs, respectively, to explore the specific requirements of IR during WAT development and WAT homeostasis in mice. Our data suggest that IR expression in APCs may not be essential for adult adipocyte differentiation but appears to be crucial for adipose tissue development. We reveal a surprising divergent role of IR in APCs during WAT development and homeostasis.
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Affiliation(s)
- Yexian Yuan
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangdong Province Key Laboratory of Animal Nutritional Regulation and National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Department of Physiology and Biophysics, The University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Zuoxiao Shi
- Department of Physiology and Biophysics, The University of Illinois at Chicago, Chicago, IL, 60612, USA; Department of Pharmaceutical Sciences, The University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Shaolei Xiong
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Ruoci Hu
- Department of Physiology and Biophysics, The University of Illinois at Chicago, Chicago, IL, 60612, USA; Department of Pharmaceutical Sciences, The University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Qing Song
- Department of Kinesiology and Nutrition, The University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Zhenyuan Song
- Department of Kinesiology and Nutrition, The University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Sang-Ging Ong
- Department of Pharmacology and Regenerative Medicine, College of Medicine, The University of Illinois at Chicago, Illinois, 60612, USA; Division of Cardiology, Department of Medicine, The University of Illinois College of Medicine, Illinois, 60612, USA
| | - Yuwei Jiang
- Department of Physiology and Biophysics, The University of Illinois at Chicago, Chicago, IL, 60612, USA; Department of Pharmaceutical Sciences, The University of Illinois at Chicago, Chicago, IL, 60612, USA; Division of Endocrinology, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA.
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49
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Lurje I, Gaisa NT, Weiskirchen R, Tacke F. Mechanisms of organ fibrosis: Emerging concepts and implications for novel treatment strategies. Mol Aspects Med 2023; 92:101191. [PMID: 37236017 DOI: 10.1016/j.mam.2023.101191] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
Fibrosis, or tissue scarring, develops as a pathological deviation from the physiological wound healing response and can occur in various organs such as the heart, lung, liver, kidney, skin, and bone marrow. Organ fibrosis significantly contributes to global morbidity and mortality. A broad spectrum of etiologies can cause fibrosis, including acute and chronic ischemia, hypertension, chronic viral infection (e.g., viral hepatitis), environmental exposure (e.g., pneumoconiosis, alcohol, nutrition, smoking) and genetic diseases (e.g., cystic fibrosis, alpha-1-antitrypsin deficiency). Common mechanisms across organs and disease etiologies involve a sustained injury to parenchymal cells that triggers a wound healing response, which becomes deregulated in the disease process. A transformation of resting fibroblasts into myofibroblasts with excessive extracellular matrix production constitutes the hallmark of disease, however, multiple other cell types such as immune cells, predominantly monocytes/macrophages, endothelial cells, and parenchymal cells form a complex network of profibrotic cellular crosstalk. Across organs, leading mediators include growth factors like transforming growth factor-β and platelet-derived growth factor, cytokines like interleukin-10, interleukin-13, interleukin-17, and danger-associated molecular patterns. More recently, insights into fibrosis regression and resolution of chronic conditions have deepened our understanding of beneficial, protective effects of immune cells, soluble mediators and intracellular signaling. Further in-depth insights into the mechanisms of fibrogenesis can provide the rationale for therapeutic interventions and the development of targeted antifibrotic agents. This review gives insight into shared responses and cellular mechanisms across organs and etiologies, aiming to paint a comprehensive picture of fibrotic diseases in both experimental settings and in human pathology.
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Affiliation(s)
- Isabella Lurje
- Department of Hepatology and Gastroenterology, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Nadine T Gaisa
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital, Aachen, Germany
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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50
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Bensa T, Tekkela S, Rognoni E. Skin fibroblast functional heterogeneity in health and disease. J Pathol 2023; 260:609-620. [PMID: 37553730 DOI: 10.1002/path.6159] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 08/10/2023]
Abstract
Fibroblasts are the major cell population of connective tissue, including the skin dermis, and are best known for their function in depositing and remodelling the extracellular matrix. Besides their role in extracellular matrix homeostasis, fibroblasts have emerged as key players in many biological processes ranging from tissue immunity and wound healing to hair follicle development. Recent advances in single-cell RNA-sequencing technologies have revealed an astonishing transcriptional fibroblast heterogeneity in the skin and other organs. A key challenge in the field is to understand the functional relevance and significance of the identified new cell clusters in health and disease. Here, we discuss the functionally distinct fibroblast subtypes identified in skin homeostasis and repair and how they evolve in fibrotic disease conditions, in particular keloid scars and cancer. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Tjaša Bensa
- Centre for Cell Biology & Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Stavroula Tekkela
- Centre for Cell Biology & Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Emanuel Rognoni
- Centre for Cell Biology & Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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