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Shen X, Yan H, Hu M, Zhou H, Wang J, Gao R, Liu Q, Wang X, Liu Y. The potential regulatory role of the non-coding RNAs in regulating the exogenous estrogen-induced feminization in Takifugu rubripes gonad. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 273:107022. [PMID: 39032423 DOI: 10.1016/j.aquatox.2024.107022] [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: 02/13/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/23/2024]
Abstract
Estrogen plays a pivotal role in the early stage of sex differentiation in teleost. However, the underlying mechanisms of estrogen-induced feminization process are still needed for further clarification. Here, the comparative analysis of whole-transcriptome RNA sequencing was conducted between 17beta-Estradiol induced feminized XY (E-XY) gonads and control gonads (C) in Takifugu rubripes. A total of 57 miRNAs, 65 lncRNAs, and 4 circRNAs were found to be expressed at lower levels in control-XY (C-XY) than that in control-XX (C-XX), and were up-regulated in XY during E2-induced feminization process. The expression levels of 24 miRNAs, and 55 lncRNAs were higher in C-XY than that in C-XX, and were down-regulated in E2-treated XY. Furthermore, a correlation analysis was performed between miRNA-seq and mRNA-seq data. In C-XX/C-XY, 114 differential expression (DE) miRNAs were predicted to target to 904 differential expression genes (DEGs), while in C-XY/E-XY, 226 DEmiRNAs were predicted to target to 2,048 DEGs. In C-XX/C-XY, and C-XY/E-XY, KEGG pathway enrichment analysis showed that those targeted genes were mainly enriched in MAPK signaling, calcium signaling, steroid hormone biosynthesis and ovarian steroidogenesis pathway. Additionally, the competitive endogenous RNA (ceRNA) regulatory network was constructed by 24 miRNAs, 21 lncRNAs, 4 circRNAs and 5 key sex-related genes. These findings suggested that the expression of critical genes in sex differentiation were altered in E2-treated XY T. rubripes may via the lncRNA-miRNA-mRNA regulation network to facilitate the differentiation and maintenance of ovaries. Our results provide a new insight into the comprehensive understanding of the effects of estrogen signaling pathways on sex differentiation in teleost gonads.
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Affiliation(s)
- Xufang Shen
- College of Biosystems Engineering and Food Science, Zhejiang University, 310058, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, Dalian, Liaoning 116023, China
| | - Hongwei Yan
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, Dalian, Liaoning 116023, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China.
| | - Mingtao Hu
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, Dalian, Liaoning 116023, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China
| | - Huiting Zhou
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China
| | - Jia Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China
| | - Rui Gao
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China
| | - Qi Liu
- Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China; College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian, Liaoning 116023, China
| | - Xiuli Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, Liaoning 116023, China; The Key Laboratory of Pufferfish Breeding and Culture in Liaoning Province, 116023, China
| | - Ying Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, 310058, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, Dalian, Liaoning 116023, China
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Pei Y, Wu Y, Zhang M, Su X, Cao H, Zhao J. Identification and Analysis of Immune Microenvironment-Related Genes for Keloid Risk Prediction and Their Effects on Keloid Proliferation and Migration. Biochem Genet 2024; 62:3174-3197. [PMID: 38085498 DOI: 10.1007/s10528-023-10598-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/10/2023] [Indexed: 07/31/2024]
Abstract
Keloid is a kind of proliferative scar with continuous growth, no restriction and easy recurrence, which cannot be cured and bring serious physical injury and psychological burden to patients. The main reason is that the pathological mechanism is not clear. Therefore, this project is expected to reveal the immune microenvironment-related genes and their functions in keloid progression, and provide effective targets for the treatment of keloid. Firstly, 8 kinds of immune infiltrating cells and 19 potential characteristic genes were identified by immune infiltration analysis, ssGSEA, LASSO regression (glmnet algorithm and lars algorithm) and WGCNA, indicating that keloid was closely related to the changes of immune microenvironment. Then, 4 pathological biomarkers of keloid (MAPK1, PTPRC, STAT3 and IL1R1) were identified by differentially analysis, univariate analysis, LASSO regression (lars algorithm), support vector machine recursive feature elimination (SVM-REF) algorithm, multivariate logical regression analysis and six machine learning algorithms. Based on the 4 feature genes, the risk prediction model and nomogram were constructed. Calibration curve and ROC analysis (AUC = 0.930) showed that the model had reliable clinical value. Subsequently, consistent cluster analysis was used to find that there were 2 immune microenvironment subsets in keloid patients, of which subgroup II was immune subgroup. Multiple independent datasets and RT-qPCR showed that the expression trend of the 4 genes was consistent with the analysis. Cell gain-loss experiment confirmed that 4 genes regulated the proliferation and migration of keloid cells. The above data shows that MAPK1, PTPRC, STAT3 and IL1R1 may be personalized therapeutic targets for keloid patients.
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Affiliation(s)
- Yongyan Pei
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University. Zhongshan Campus, Guangdong Pharmaceutical University, No.13 Changmingshui Avenue, Wuguishan, Zhongshan, Guangdong, China.
| | - Yikai Wu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University. Zhongshan Campus, Guangdong Pharmaceutical University, No.13 Changmingshui Avenue, Wuguishan, Zhongshan, Guangdong, China
| | - Mengqi Zhang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University. Zhongshan Campus, Guangdong Pharmaceutical University, No.13 Changmingshui Avenue, Wuguishan, Zhongshan, Guangdong, China
| | - Xuemin Su
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University. Zhongshan Campus, Guangdong Pharmaceutical University, No.13 Changmingshui Avenue, Wuguishan, Zhongshan, Guangdong, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University. Zhongshan Campus, Guangdong Pharmaceutical University, No.13 Changmingshui Avenue, Wuguishan, Zhongshan, Guangdong, China
| | - Jiaji Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University. Zhongshan Campus, Guangdong Pharmaceutical University, No.13 Changmingshui Avenue, Wuguishan, Zhongshan, Guangdong, China.
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3
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Yang J, Zhu Z, Xu Y, Xu S, Zhang Y, Liu Z, Liu X, Shi J, Han B. Gene Profiling of Circular RNAs in Keloid-prone Individuals and ceRNA Network Construction During Wound Healing. Aesthetic Plast Surg 2024:10.1007/s00266-024-04139-2. [PMID: 38914881 DOI: 10.1007/s00266-024-04139-2] [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: 04/03/2024] [Accepted: 05/09/2024] [Indexed: 06/26/2024]
Abstract
Epigenetic alterations of non-coding RNA (ncRNA) are pivotal in the continuous activation and differentiation of fibroblasts in keloid. However, the epigenetic mechanism of circRNA in keloid is still not clear yet. In this study, we aimed to investigate the interplay among differentially expressed circRNAs, miRNAs, and mRNAs during wound healing in keloid-prone individuals, construct a competing endogenous RNA (ceRNA) network, and gain an in-depth insight into the pathophysiological mechanisms underlying keloid development. Utilizing bioinformatic methods, we analyzed the expression profiles from the GSE113621 database. We identified 29 differentially expressed circRNAs (DEcircRNAs) in keloid-prone individuals during wound healing, from which we constructed 14 ceRNA networks. Subsequently, we validated the expression of predicted DEcircRNAs in keloid tissues and elucidated the ceRNA network involving circ_064002 and fibronectin-1 (FN1) through competing miR-30a/b-5p. Knocking down circ_064002 led to down-regulation of FN1 expression and various cellular functions in keloid-derived fibroblasts (KFs), including cell viability, migration, invasion, and repair capacity. Our study introduces a novel approach to explore the presence of DEcircRNAs and the ceRNA regulatory network during wound healing in keloid-prone individuals through in-depth mining of GEO data and also proves the epigenetic regulatory mechanism of circ_064002 in KFs. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Jifan Yang
- The Scar and Wound Treatment Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.33 Badachu Road, Beijing, 100144, China
| | - Zhaowei Zhu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China
| | - Yangbin Xu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China
| | - Shuqia Xu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China
| | - Yujing Zhang
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China
| | - Zheng Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China
| | - Xiangxia Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China
| | - Jun Shi
- School of Chinese Materia Medica, Guangzhou Higher Education Mega Center, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Bing Han
- The Scar and Wound Treatment Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.33 Badachu Road, Beijing, 100144, China.
- Department of Plastic Surgery, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Road 2, Guangzhou, 510080, China.
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Gu S, Huang X, Luo S, Liu Y, Khoong Y, Liang H, Tu L, Xu R, Yang E, Zhao Y, Yao M, Zan T. Targeting the nuclear long noncoding transcript LSP1P5 abrogates extracellular matrix deposition by trans-upregulating CEBPA in keloids. Mol Ther 2024; 32:1984-1999. [PMID: 38553852 PMCID: PMC11184311 DOI: 10.1016/j.ymthe.2024.03.031] [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: 06/02/2023] [Revised: 01/07/2024] [Accepted: 03/26/2024] [Indexed: 06/09/2024] Open
Abstract
Keloids are characterized by fibroblast hyperproliferation and excessive accumulation of extracellular matrix (ECM) and are a major global health care burden among cutaneous diseases. However, the function of long noncoding RNA (lncRNA)-mediated ECM remodeling during the pathogenesis of keloids is still unclear. Herein, we identified a long noncoding transcript, namely, lymphocyte-specific protein 1 pseudogene 5 (LSP1P5), that modulates ECM component deposition in keloids. First, high-throughput transcriptome analysis showed that LSP1P5 was selectively upregulated in keloids and correlated with more severe disease in a clinical keloid cohort. Therapeutically, the attenuation of LSP1P5 significantly decreased the expression of ECM markers (COL1, COL3, and FN1) both in vitro and in vivo. Intriguingly, an antifibrotic gene, CCAAT enhancer binding protein alpha (CEBPA), is a functional downstream candidate of LSP1P5. Mechanistically, LSP1P5 represses CEBPA expression by hijacking Suppressor of Zeste 12 to the promoter of CEBPA, thereby enhancing the polycomb repressive complex 2-mediated H3K27me3 and changing the chromosomal opening status of CEBPA. Taken together, these findings indicate that targeting LSP1P5 abrogates fibrosis in keloids through epigenetic regulation of CEBPA, revealing a novel antifibrotic therapeutic strategy that bridges our current understanding of lncRNA regulation, histone modification and ECM remodeling in keloids.
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Affiliation(s)
- Shuchen Gu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Xin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Shenying Luo
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Yunhan Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Yimin Khoong
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Hsin Liang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Liying Tu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Ruoqing Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - En Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China
| | - Yixuan Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China.
| | - Min Yao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China.
| | - Tao Zan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, P.R. China.
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5
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Lacombe D, Bloch-Zupan A, Bredrup C, Cooper EB, Houge SD, García-Miñaúr S, Kayserili H, Larizza L, Lopez Gonzalez V, Menke LA, Milani D, Saettini F, Stevens CA, Tooke L, Van der Zee JA, Van Genderen MM, Van-Gils J, Waite J, Adrien JL, Bartsch O, Bitoun P, Bouts AHM, Cueto-González AM, Dominguez-Garrido E, Duijkers FA, Fergelot P, Halstead E, Huisman SA, Meossi C, Mullins J, Nikkel SM, Oliver C, Prada E, Rei A, Riddle I, Rodriguez-Fonseca C, Rodríguez Pena R, Russell J, Saba A, Santos-Simarro F, Simpson BN, Smith DF, Stevens MF, Szakszon K, Taupiac E, Totaro N, Valenzuena Palafoll I, Van Der Kaay DCM, Van Wijk MP, Vyshka K, Wiley S, Hennekam RC. Diagnosis and management in Rubinstein-Taybi syndrome: first international consensus statement. J Med Genet 2024; 61:503-519. [PMID: 38471765 PMCID: PMC11137475 DOI: 10.1136/jmg-2023-109438] [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: 06/01/2023] [Accepted: 02/15/2024] [Indexed: 03/14/2024]
Abstract
Rubinstein-Taybi syndrome (RTS) is an archetypical genetic syndrome that is characterised by intellectual disability, well-defined facial features, distal limb anomalies and atypical growth, among numerous other signs and symptoms. It is caused by variants in either of two genes (CREBBP, EP300) which encode for the proteins CBP and p300, which both have a function in transcription regulation and histone acetylation. As a group of international experts and national support groups dedicated to the syndrome, we realised that marked heterogeneity currently exists in clinical and molecular diagnostic approaches and care practices in various parts of the world. Here, we outline a series of recommendations that document the consensus of a group of international experts on clinical diagnostic criteria for types of RTS (RTS1: CREBBP; RTS2: EP300), molecular investigations, long-term management of various particular physical and behavioural issues and care planning. The recommendations as presented here will need to be evaluated for improvements to allow for continued optimisation of diagnostics and care.
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Affiliation(s)
- Didier Lacombe
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de Strasbourg, and Centre de référence des maladies rares orales et dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, and Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U1258, Illkirch, France
| | - Cecilie Bredrup
- Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway
| | - Edward B Cooper
- Department of Anesthesiology, Cincinnati Children's Hospital, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sofia Douzgou Houge
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway and Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Sixto García-Miñaúr
- Instituto de Genética Médica y Molecular (INGEMM), Hospital Universitario La Paz, Madrid, Spain
| | - Hülya Kayserili
- Department of Medical Genetics, Koc University School of Medicine (KUSOM), 34010 Istanbul, Turkey
| | - Lidia Larizza
- Laboratorio di Ricerca in Citogenetica medica e Genetica Molecolare, Centro di Ricerche e Tecnologie Biomediche IRCCS-Istituto Auxologico Italiano, Milano, Italy
| | - Vanesa Lopez Gonzalez
- Department of Pediatrics, Medical Genetics Section, Virgen de la Arrixaca University Hospital, IMIB, CIBERER, Murcia, Spain
| | - Leonie A Menke
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Donatella Milani
- Fondazione IRCCS, Ca'Granda Ospedale Maggiore, 20122 Milan, Italy
| | - Francesco Saettini
- Fondazione Matilde Tettamanti Menotti De Marchi Onlus, Fondazione Monza e Brianza per il Bambino e la sua Mamma, Monza, Italy
| | - Cathy A Stevens
- Department of Pediatrics, University of Tennessee College of Medicine, Chattanooga, Tennessee, USA
| | - Lloyd Tooke
- Department of Pediatrics, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Jill A Van der Zee
- Department of Pediatric Urology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Maria M Van Genderen
- Bartiméus Diagnostic Center for complex visual disorders, Zeist and Department of Ophthalmology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Julien Van-Gils
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Jane Waite
- School of Psychology, College of Health and Life Sciences, Aston University, Birmingham, UK
| | - Jean-Louis Adrien
- Université de Paris, Laboratoire de Psychopathologie et Processus de Santé, Boulogne Billancourt, France
| | - Oliver Bartsch
- MVZ - Humangenetik, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Pierre Bitoun
- Département de Genetique, SIDVA 91, Juvisy-sur-Orge, France
| | - Antonia H M Bouts
- Department of Pediatric Nephrology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Anna M Cueto-González
- Department of Clinical and Molecular Genetics, University Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | | | - Floor A Duijkers
- Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Patricia Fergelot
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Elizabeth Halstead
- Psychology and Human Development Department, University College London, London, UK
| | - Sylvia A Huisman
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Zodiak, Prinsenstichting, Purmerend, Netherlands
| | - Camilla Meossi
- Fondazione IRCCS, Ca'Granda Ospedale Maggiore, 20122 Milan, Italy
| | - Jo Mullins
- Rubinstein-Taybi Syndrome Support Group, Registered Charity, Rickmansworth, UK
| | - Sarah M Nikkel
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Chris Oliver
- School of Psychology, University of Birmingham, Edgbaston, UK
| | - Elisabetta Prada
- Fondazione IRCCS, Ca'Granda Ospedale Maggiore, 20122 Milan, Italy
| | - Alessandra Rei
- Associazione Rubinstein-Taybi Syndrome-Una Vita Speciale, Organizzazione di Volontariato (ODV), Gornate Olona, Varese, Italy
| | - Ilka Riddle
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | | | | | - Janet Russell
- Associazione Rubinstein-Taybi Syndrome-Una Vita Speciale, Organizzazione di Volontariato (ODV), Gornate Olona, Varese, Italy
| | | | - Fernando Santos-Simarro
- Unit of Molecular Diagnostics and Clinical Genetics, Hospital Universitari Son Espases, Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Brittany N Simpson
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, Cincinnati School of Medicine, Cincinnati, Ohio, USA
| | - David F Smith
- Department of Pediatric Otolaryngology, Cincinnati Children's Hospital Medical Center, and Department of Otolaryngology - Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Markus F Stevens
- Department of Anesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Katalin Szakszon
- Institution of Pediatrics, University of Debrecen Clinical Centre, Debrecen, Hungary
| | - Emmanuelle Taupiac
- Department of Medical Genetics, University Hospital of Bordeaux, and INSERM U1211, University of Bordeaux, 33076 Bordeaux, France
| | - Nadia Totaro
- Associazione Rubinstein-Taybi Syndrome-Una Vita Speciale, Organizzazione di Volontariato (ODV), Gornate Olona, Varese, Italy
| | - Irene Valenzuena Palafoll
- Department of Clinical and Molecular Genetics, University Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Daniëlle C M Van Der Kaay
- Division of Paediatric Endocrinology, Department of Paediatrics, Erasmus University Medical Centre, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Michiel P Van Wijk
- Department of Pediatric Gastroenterology, Emma Children's Hospital, Amsterdam UMC, University Amsterdam, Amsterdam, Netherlands
| | - Klea Vyshka
- European Reference Network on Rare Congenital Malformations and Rare Intellectual Disability (ERN-ITHACA), Robert Debré University Hospital, Paris, France
| | - Susan Wiley
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Raoul C Hennekam
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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Ye W, Lu J, Yang Z, Yang B, Zhu G, Xue C. Long Non-Coding RNA B3GALT5-AS1 Suppresses Keloid Progression by Regulating the β-Trcp1-Mediated Ubiquitination of HuR. Clin Cosmet Investig Dermatol 2024; 17:967-979. [PMID: 38707608 PMCID: PMC11069380 DOI: 10.2147/ccid.s447772] [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: 11/20/2023] [Accepted: 04/21/2024] [Indexed: 05/07/2024]
Abstract
Background lncRNA β‑1,3‑galactosyltransferase 5‑AS1 (B3GALT5-AS1) plays a vital regulatory role in colon and gastric cancers. However, the biological functions and regulatory mechanisms of B3GALT5-AS1 in keloid progression remain unknown. This study aims to investigate the molecular mechanisms in the B3GALT5-AS1-regulated keloid proliferation and invasion. Methods Secondary mining of the lncRNA sequencing data from GSE158395 was conducted to screen differentially expressed lncRNAs between keloid and normal tissues. MTT, cell migration and invasion assays were performed to detect the effects of B3GALT5-AS1 on keloid fibroblasts (KFs) proliferation and metastasis. The extracellular acidification rate (ECAR) and oxygen consumption rate (OCR) were also determined to evaluate glycolysis in KFs. RNA pull-down and RNA-protein immunoprecipitation assays were used to confirm the interaction between B3GALT5-AS1 and Hu-Antigen R (HuR). Further ubiquitination and rescue experiments were performed to elucidate the regulatory relationship between B3GALT5-AS1 and HuR. Results B3GALT5-AS1 was significantly down-regulated in keloid tissues and fibroblasts. B3GALT5-AS1 overexpression significantly inhibited KFs proliferation, glycolysis, invasion, and migration and promoted cell apoptosis, whereas silencing B3GALT5-AS1 inhibited these effects. Moreover, B3GALT5-AS1 binds to HuRand reduces its stability through β-Transducin repeats-containing protein 1 (β-Trcp1)-mediated ubiquitination. Overexpression of HuR reversed the inhibition of B3GALT5-AS1 on cell proliferation, migration, and invasion in KFs, where glycolysis pathway was involved. Conclusion Our findings illustrate that B3GALT5-AS1 has great effect on inhibition of keloid formation, which provides a potential target for keloid therapy.
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Affiliation(s)
- Wei Ye
- Department of Burn Surgery, the First Clinical Medical College of Guangdong Medical University, Huizhou, 516001, People’s Republic of China
| | - Junwen Lu
- Department of Burn Surgery, the First Clinical Medical College of Guangdong Medical University, Huizhou, 516001, People’s Republic of China
| | - Zuxian Yang
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, People’s Republic of China
| | - Ben Yang
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, People’s Republic of China
| | - Guanya Zhu
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, People’s Republic of China
| | - Chunli Xue
- Department of Burn Surgery, Huizhou Municipal Central Hospital, Huizhou, 516001, People’s Republic of China
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7
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Gumede DB, Abrahamse H, Houreld NN. Targeting Wnt/β-catenin signaling and its interplay with TGF-β and Notch signaling pathways for the treatment of chronic wounds. Cell Commun Signal 2024; 22:244. [PMID: 38671406 PMCID: PMC11046856 DOI: 10.1186/s12964-024-01623-9] [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: 02/29/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024] Open
Abstract
Wound healing is a tightly regulated process that ensures tissue repair and normal function following injury. It is modulated by activation of pathways such as the transforming growth factor-beta (TGF-β), Notch, and Wnt/β-catenin signaling pathways. Dysregulation of this process causes poor wound healing, which leads to tissue fibrosis and ulcerative wounds. The Wnt/β-catenin pathway is involved in all phases of wound healing, primarily in the proliferative phase for formation of granulation tissue. This review focuses on the role of the Wnt/β-catenin signaling pathway in wound healing, and its transcriptional regulation of target genes. The crosstalk between Wnt/β-catenin, Notch, and the TGF-β signaling pathways, as well as the deregulation of Wnt/β-catenin signaling in chronic wounds are also considered, with a special focus on diabetic ulcers. Lastly, we discuss current and prospective therapies for chronic wounds, with a primary focus on strategies that target the Wnt/β-catenin signaling pathway such as photobiomodulation for healing diabetic ulcers.
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Affiliation(s)
- Dimakatso B Gumede
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Nicolette N Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa.
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8
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Zhao Z, Xu Z, Lv D, Rong Y, Hu Z, Yin R, Dong Y, Cao X, Tang B. Impact of the gut microbiome on skin fibrosis: a Mendelian randomization study. Front Med (Lausanne) 2024; 11:1380938. [PMID: 38695027 PMCID: PMC11061451 DOI: 10.3389/fmed.2024.1380938] [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: 02/02/2024] [Accepted: 04/04/2024] [Indexed: 05/04/2024] Open
Abstract
Objective Skin fibrosis is a lesion in the dermis causing to itching, pain, and psychological stress. The gut microbiome plays as an essential role in skin diseases developments. We conducted a Mendelian randomization study to determine the causal association between the gut microbiome and skin fibrosis. Methods We retrieved valid instrumental variables from the genome-wide association study (GWAS) files of the gut microbiome (n = 18,340) conducted by the MiBioGen consortium. Skin fibrosis-associated data were downloaded from the GWAS Catalog. Subsequently, a two-sample Mendelian randomization (MR) analysis was performed to determine whether the gut microbiome was related to skin fibrosis. A reverse MR analysis was also performed on the bacterial traits which were causally associated with skin fibrosis in the forward MR analysis. In addition, we performed an MR-Pleiotropy Residual Sum and Outlier analysis to remove outliers and a sensitivity analysis to verify our results. Results According to the inverse variance-weighted estimation, we identified that ten bacterial traits (Class Actinobacteria, Class Bacteroidia, family Bifidobacteriaceae, family Rikenellaceae, genus Lachnospiraceae (UCG004 group), genus Ruminococcaceae (UCG013 group), order Bacteroidales, order Bifidobacteriales, genus Peptococcus and genus Victivallis) were negatively correlated with skin fibrosis while five bacterial traits (genus Olsenella, genus Oscillospira, genus Turicibacter, genus Lachnospiraceae (NK4A136group), and genus Sellimonas) were positively correlated. No results were obtained from reverse MR analysis. No significant heterogeneity or horizontal pleiotropy was observed in MR analysis. Objective conclusion There is a causal association between the gut microbiome and skin fibrosis, indicating the existence of a gut-skin axis. This provides a new breakthrough point for mechanistic and clinical studies of skin fibrosis.
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Affiliation(s)
- Zirui Zhao
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhongye Xu
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dongming Lv
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanchao Rong
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhicheng Hu
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Rong Yin
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yunxian Dong
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Xiaoling Cao
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Bing Tang
- Department of Burn and Plastic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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9
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Dai S, Xu M, Pang Q, Sun J, Lin X, Chu X, Guo C, Xu J. Hypoxia macrophage-derived exosomal miR-26b-5p targeting PTEN promotes the development of keloids. BURNS & TRAUMA 2024; 12:tkad036. [PMID: 38434721 PMCID: PMC10905499 DOI: 10.1093/burnst/tkad036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 05/11/2023] [Accepted: 06/21/2023] [Indexed: 03/05/2024]
Abstract
Background Hypoxia is the typical characteristic of keloids. The development of keloids is closely related to the abnormal phenotypic transition of macrophages. However, the role of exosomal microRNAs (miRNAs) derived from hypoxic macrophages in keloids remains unclear. This study aimed to explore the role of hypoxic macrophage-derived exosomes (HMDE) in the occurrence and development of keloids and identify the critical miRNA. Methods The expression of CD206+ M2 macrophage in keloids and normal skin tissues was examined through immunofluorescence. The polarization of macrophages under a hypoxia environment was detected through flow cytometry. The internalization of macrophage-derived exosomes in human keloid fibroblasts (HKFs) was detected using a confocal microscope. miRNA sequencing was used to explore the differentially expressed miRNAs in exosomes derived from the normoxic and hypoxic macrophage. Subsequently, the dual-luciferase reporter assay verified that phosphatase and tension homolog (PTEN) was miR-26b-5p's target. The biological function of macrophage-derived exosomes, miR-26b-5p and PTEN were detected using the CCK-8, wound-healing and Transwell assays. Western blot assay was used to confirm the miR-26b-5p's underlying mechanisms and PTEN-PI3K/AKT pathway. Results We demonstrated that M2-type macrophages were enriched in keloids and that hypoxia treatment could polarize macrophages toward M2-type. Compared with normoxic macrophages-derived exosomes (NMDE), HMDE promote the proliferation, migration and invasion of HKFs. A total of 38 differential miRNAs (18 upregulated and 20 downregulated) were found between the NMDE and HMDE. miR-26b-5p was enriched in HMDE, which could be transmitted to HKFs. According to the results of the functional assay, exosomal miR-26b-5p produced by macrophages facilitated HKFs' migration, invasion and proliferation via the PTEN-PI3K/AKT pathway. Conclusions The highly expressed miR-26b-5p in HMDE promotes the development of keloids via the PTEN-PI3K/AKT pathway.
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Affiliation(s)
- Siya Dai
- Department of Plastic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, China
| | - Mingyuan Xu
- Department of Plastic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, China
| | - Qianqian Pang
- Department of Plastic Surgery, Ningbo Second Hospital, 41 Xibei Street, Ningbo, China
| | - Jiaqi Sun
- Department of Plastic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, China
| | - Xiaohu Lin
- Department of Plastic and Reconstructive Surgery, Zhejiang Provincial People's Hospital, 158 Shangtang Road, Gongshu District, Hangzhou, China
| | - Xi Chu
- Department of Plastic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, China
| | - Chunyi Guo
- Department of Plastic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, China
| | - Jinghong Xu
- Department of Plastic Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Shangcheng District, Hangzhou, China
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10
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Huang F, Zhang E, Lei Y, Yan Q, Xue C. Tripterine Inhibits Proliferation and Promotes Apoptosis of Keloid Fibroblasts by Targeting ROS/JNK Signaling. J Burn Care Res 2024; 45:104-111. [PMID: 37436955 PMCID: PMC11023317 DOI: 10.1093/jbcr/irad106] [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: 04/19/2023] [Indexed: 07/14/2023]
Abstract
Keloids are benign skin tumors characterized by excessive fibroblast proliferation and collagen deposition. The current treatment of keloids with hormone drug injection, surgical excision, radiotherapy, physical compression, laser therapy, cryotherapy often have unsatisfactory outcomes. The phytochemical compounds have shown great potential in treating keloids. Tripterine, a natural triterpene derived from the traditional Chinese medicine Thunder God Vine (Tripterygium wilfordii), was previously reported to exhibit an anti-scarring bioactivity in mouse embryonic fibroblast NIH/3T3 cells. Accordingly, our study was dedicated to explore its role in regulating the pathological phenotypes of keloid fibroblasts. Human keloid fibroblasts were treated with tripterine (0-10 μM) for 24 hours. Cell viability, proliferation, migration, apoptosis, and extracellular matrix (ECM) deposition were determined by CCK-8, EdU, wound healing, Transwell, flow cytometry, western blotting, and RT-qPCR assays. The effects of tripterine treatment on reactive oxygen species (ROS) generation and JNK activation in keloid fibroblasts were assessed by DCFH-DA staining and western blotting analysis. Tripterine at the concentrations higher than 4 μM attenuated the viability of human keloid fibroblasts in a dose-dependent manner. Treatment with tripterine (4, 6, and 8 μM) dose-dependently inhibited cell proliferation and migration, promoted cell apoptosis, reduced α-SMA, Col1, and Fn expression, induced ROS production, and enhanced JNK phosphorylation in keloid fibroblasts. Collectively, tripterine ameliorates the pathological characteristics of keloid fibroblasts that are associated with keloidformation and growth by inducing ROS generation and activating JNK signalingpathway.
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Affiliation(s)
- Fang Huang
- School Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Enjing Zhang
- Department of Pharmacy, Third Municipal Hospital, Wuhan, China
| | - Yan Lei
- School Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Qiong Yan
- School Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Chengbin Xue
- Department of Pharmacy, Hospital of Huazhong University of Science and Technology, Wuhan, China
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11
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Su L, Han J. Non-coding RNAs in hypertrophic scars and keloids: Current research and clinical relevance: A review. Int J Biol Macromol 2024; 256:128334. [PMID: 38007032 DOI: 10.1016/j.ijbiomac.2023.128334] [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: 07/23/2023] [Revised: 10/28/2023] [Accepted: 11/12/2023] [Indexed: 11/27/2023]
Abstract
Hypertrophic scars (HS) and keloids (KD) are lesions that develop as a result of excessive fibroblast proliferation and collagen deposition in response to dermal injury, leading to dysregulation of the inflammatory, proliferative, and remodeling phases during wound healing. HS and KD affect up to 90 % of the population and are associated with lower quality of life, physical health, and mental status in patients. Efficient targeted treatment represents a significant challenge, primarily due to our limited understanding of their underlying pathogenesis. Non-coding RNAs (ncRNAs), which constitute a significant portion of the human transcriptome with minimal or no protein-coding capacity, have been implicated in various cellular physiologies and pathologies and may serve as diagnostic indicators or therapeutic targets. NcRNAs have been found to be aberrantly expressed and regulated in HS and KD. This review provides a summary of the expression profiles and molecular mechanisms of three common ncRNAs, including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), in HS and KD. It also discusses their potential as biomarkers for the diagnosis and treatment of these diseases and provides novel insights into epigenetic-based diagnosis and treatment strategies for HS and KD.
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Affiliation(s)
- Linlin Su
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi 710032, China.
| | - Juntao Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi 710032, China.
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12
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Qi W, Xiao X, Tong J, Guo N. Progress in the clinical treatment of keloids. Front Med (Lausanne) 2023; 10:1284109. [PMID: 38046417 PMCID: PMC10690427 DOI: 10.3389/fmed.2023.1284109] [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: 08/30/2023] [Accepted: 11/03/2023] [Indexed: 12/05/2023] Open
Abstract
Keloid is a pathological scar that is higher than the skin surface following skin damage. Its lesion range often extends beyond the original damage boundary and does not naturally subside over time. Its pathogenesis is very complex, currently the main causes include fibroblast excessive proliferation, collagen and extracellular matrix (Extracellular matrix, ECM) excessive deposition, excessive angiogenesis, and so on. The traditional treatment method primarily involves surgical intervention, but it is associated with a high recurrence rate post-surgery. Consequently, many treatment methods are derived according to the different clinical characteristics of keloid. This paper will review the therapeutic progress in recent years from surgical treatment, physiotherapy, drug therapy, and biological therapy, with the goal of offering valuable insights for the clinical treatment of keloids.
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Affiliation(s)
| | | | - Jing Tong
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nengqiang Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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13
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Xie J, Gan L, Xue B, Wang X, Pei X. Emerging roles of interactions between ncRNAs and other epigenetic modifications in breast cancer. Front Oncol 2023; 13:1264090. [PMID: 37901333 PMCID: PMC10602744 DOI: 10.3389/fonc.2023.1264090] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/26/2023] [Indexed: 10/31/2023] Open
Abstract
Up till the present moment, breast cancer is still the leading cause of cancer-related death in women worldwide. Although the treatment methods and protocols for breast cancer are constantly improving, the long-term prognosis of patients is still not optimistic due to the complex heterogeneity of the disease, multi-organ metastasis, chemotherapy and radiotherapy resistance. As a newly discovered class of non-coding RNAs, ncRNAs play an important role in various cancers. Especially in breast cancer, lncRNAs have received extensive attention and have been confirmed to regulate cancer progression through a variety of pathways. Meanwhile, the study of epigenetic modification, including DNA methylation, RNA methylation and histone modification, has developed rapidly in recent years, which has greatly promoted the attention to the important role of non-coding RNAs in breast cancer. In this review, we carefully and comprehensively describe the interactions between several major classes of epigenetic modifications and ncRNAs, as well as their different subsequent biological effects, and discuss their potential for practical clinical applications.
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Affiliation(s)
| | | | | | | | - Xinhong Pei
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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14
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Wu D, Liu X, Jin Z. Adipose-derived mesenchymal stem cells-sourced exosomal microRNA-7846-3p suppresses proliferation and pro-angiogenic role of keloid fibroblasts by suppressing neuropilin 2. J Cosmet Dermatol 2023; 22:2333-2342. [PMID: 37025072 DOI: 10.1111/jocd.15721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/07/2023] [Accepted: 02/23/2023] [Indexed: 04/08/2023]
Abstract
BACKGROUND Exosomes (Exos) and their contained microRNAs (miRNAs) have been emergingly recognized as key regulators in spanning biological processes, including proliferation and angiogenesis. AIM OF THE STUDY This work investigates the function of Exos derived from adipose-derived mesenchymal stem cells (adMSCs) in viability of keloid fibroblasts (KFs). METHODS Abnormally expressed miRNAs in keloid tissues were screened using the GEO dataset GSE113620. Meanwhile, miRNAs enriched in adMSC-Exos were predicted by bioinformatics system. Exos were extracted from acquired adMSCs and identified, which were co-incubated with KFs. Uptake of Exos by KFs was examined by fluorescence staining. Viability, proliferation, and apoptosis of KFs were analyzed by CCK-8, EdU labeling, and TUNEL assays. Conditioned medium of KFs was collected to stimulate angiogenesis of human umbilical vein endothelial cells (HUVECs). Binding between miR-7846-3p and neuropilin 2 (NRP2) was validated by luciferase assay. Protein levels of NRP2 and the Hedgehog pathway molecules were analyzed by western blot analysis. RESULTS miR-7846-3p was predicted as an exosomal miRNA aberrantly expressed in keloids. AdMSC-Exos reduced viability, proliferation, and apoptosis resistance of KFs, and they blocked the angiogenesis of HUVECs. miR-7846-3p targeted NRP2 mRNA. miR-7846-3p upregulation in KFs suppressed NRP2 expression and reduced the expression of Hedgehog pathway molecules SHH, SMO, and GLI1. Either miR-7846-3p inhibition in Exos or NRP2 overexpression in KFs blocked the effects of Exos and restored the viability, proliferation, and pro-angiogenic role of KFs. CONCLUSION This work unravels that adMSC-Exos-derived miR-7846-3p suppresses NRP2 and inactivates the Hedgehog signaling to reduce proliferation and pro-angiogenic role of KFs.
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Affiliation(s)
- Di Wu
- Department of Dermatology, Jilin Central Hospital, Jilin, China
- Department of Dermatology, Affiliated Hospital of Yanbian University, Yanji, China
| | - Xiao Liu
- Department of Dermatology, Jilin Central Hospital, Jilin, China
| | - Zhehu Jin
- Department of Dermatology, Affiliated Hospital of Yanbian University, Yanji, China
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15
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Zhou C, Zhang B, Yang Y, Jiang Q, Li T, Gong J, Tang H, Zhang Q. Stem cell-derived exosomes: emerging therapeutic opportunities for wound healing. Stem Cell Res Ther 2023; 14:107. [PMID: 37101197 PMCID: PMC10134577 DOI: 10.1186/s13287-023-03345-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/14/2023] [Indexed: 04/28/2023] Open
Abstract
Wound healing is a dynamic and highly sequential process involving a series of overlapping spatial and temporal phases, including hemostasis, inflammation, proliferation, and tissue remodeling. Mesenchymal stem cells (MSCs) are multipotent stem cells with self-renewal, multidirectional differentiation potential, and paracrine regulation. Exosomes are subcellular vesicular components 30-150 nm in size and are novel carriers of intercellular communication in regulating the biological behaviors of skin cells. Compared to MSCs, MSC-derived exosomes (MSC-exos) possess lower immunogenicity, easy storage, and highly effective biological activity. MSC-exos, mainly derived from adipose-derived stem cells (ADSCs), bone marrow-derived MSCs (BMSCs), human umbilical cord MSCs (hUC-MSCs), and other stem cell types, play a role in shaping the activity of fibroblasts, keratinocytes, immune cells, and endothelial cells in diabetic wounds, inflammatory wound repair, and even wound-related keloid formation. Therefore, this study focuses on the specific roles and mechanisms of different MSC-exos in wound healing, as well as the current limitations and various perspectives. Deciphering the biological properties of MSC-exos is crucial to providing a promising cell-free therapeutic tool for wound healing and cutaneous regeneration.
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Affiliation(s)
- Chuchao Zhou
- Department of Plastic Surgery, Wuhan Third Hospital (Tongren Hospital of Wuhan University), Wuhan, 430060, China
| | - Boyu Zhang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Yanqing Yang
- Department of Plastic Surgery, Wuhan Third Hospital (Tongren Hospital of Wuhan University), Wuhan, 430060, China
| | - Qiong Jiang
- Department of Pharmacy, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, 437000, Hubei, China
| | - Tianyu Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Gong
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
| | - Hongbo Tang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
| | - Qi Zhang
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
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16
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Wu T, Jin Y, Chen F, Xuan X, Cao J, Liang Y, Wang Y, Zhan J, Zhao M, Huang C. Identification and characterization of bone/cartilage-associated signatures in common fibrotic skin diseases. Front Genet 2023; 14:1121728. [PMID: 37082197 PMCID: PMC10111020 DOI: 10.3389/fgene.2023.1121728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
Background: Fibrotic skin diseases are characterized by excessive accumulation of the extracellular matrix (ECM) and activation of fibroblasts, leading to a global healthcare burden. However, effective treatments of fibrotic skin diseases remain limited, and their pathological mechanisms require further investigation. This study aims to investigate the common biomarkers and therapeutic targets in two major fibrotic skin diseases, namely, keloid and systemic sclerosis (SSc), by bioinformatics analysis.Methods: The keloid (GSE92566) and SSc (GSE95065) datasets were downloaded from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were identified, followed by functional enrichment analysis using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). We then constructed a protein–protein interaction (PPI) network for the identification of hub genes. We explored the possibility of further functional enrichment analysis of hub genes on the Metascape, GeneMANIA, and TissueNexus platforms. Transcription factor (TF)–hub gene and miRNA–hub gene networks were established using NetworkAnalyst. We fixed GSE90051 and GSE76855 as the external validation datasets. Student’s t-test and receiver operating characteristic (ROC) curve were used for candidate hub gene validation. Hub gene expression was assessed in vitro by quantitative real-time PCR.Results: A total of 157 overlapping DEGs (ODEGs) were retrieved from the GSE92566 and GSE95065 datasets, and five hub genes (COL11A1, COL5A2, ASPN, COL10A1, and COMP) were identified and validated. Functional studies revealed that hub genes were predominantly enriched in bone/cartilage-related and collagen-related processes. FOXC1 and miR-335-5p were predicted to be master regulators at both transcriptional and post‐transcriptional levels.Conclusion: COL11A1, COL5A2, ASPN, COL10A1, and COMP may help understand the pathological mechanism of the major fibrotic skin diseases; moreover, FOXC1 and miR-355-5p could build a regulatory network in keloid and SSc.
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Affiliation(s)
- Ting Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yifan Jin
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangqi Chen
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiuyun Xuan
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juanmei Cao
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Liang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuqing Wang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinshan Zhan
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mengjie Zhao
- Department of Dermatology, Zhongnan Hospital of Wuhan University, Wuhan, China
- *Correspondence: Mengjie Zhao, ; Changzheng Huang,
| | - Changzheng Huang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Mengjie Zhao, ; Changzheng Huang,
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17
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Wang Q, Yang X, Ma J, Xie X, Sun Y, Chang X, Bi H, Xue H, Qin Z. PI3K/AKT pathway promotes keloid fibroblasts proliferation by enhancing glycolysis under hypoxia. Wound Repair Regen 2023; 31:139-155. [PMID: 36571288 DOI: 10.1111/wrr.13067] [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: 03/11/2022] [Revised: 11/30/2022] [Accepted: 12/20/2022] [Indexed: 12/27/2022]
Abstract
Our previous study demonstrated altered glucose metabolism and enhanced phosphorylation of the PI3K/AKT pathway in keloid fibroblasts (KFb) under hypoxic conditions. However, whether the PI3K/AKT pathway influences KFb cell function by regulating glucose metabolism under hypoxic conditions remains unclear. Here, we show that when PI3K/AKT pathway was inactivated with LY294002, the protein expression of glycolytic enzymes decreased, while the amount of mitochondria and mitochondrial membrane potential increased. The key parameters of extracellular acidification rate markedly diminished, and those of oxygen consumption rate significantly increased after inhibition of the PI3K/AKT pathway. When the PI3K/AKT pathway was suppressed, the levels of reactive oxygen species (ROS) and mitochondrial ROS (mitoROS) were significantly increased. Meanwhile, cell proliferation, migration and invasion were inhibited, and apoptosis was increased when the PI3K/AKT pathway was blocked. Additionally, cell proliferation was compromised when KFb were treated with both SC79 (an activator of the PI3K/AKT pathway) and 2-deoxy-d-glucose (an inhibitor of glycolysis), compared with the SC79 group. Moreover, a positive feedback mechanism was demonstrated between the PI3K/AKT pathway and hypoxia-inducible factor-1α (HIF-1α). Our data collectively demonstrated that the PI3K/AKT pathway promotes proliferation and inhibits apoptosis in KFb under hypoxia by regulating glycolysis, indicating that the PI3K/AKT signalling pathway could be a therapeutic target for keloids.
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Affiliation(s)
- Qifei Wang
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Xin Yang
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Jianxun Ma
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Xiang Xie
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Yimou Sun
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Xu Chang
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Hongsen Bi
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Hongyu Xue
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Zelian Qin
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
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Yu Y, Dong Y, Deng B, Yang T. IncRNA MIAT Accelerates Keloid Formation by miR-411-5p/JAG1 Axis. Crit Rev Eukaryot Gene Expr 2023; 33:81-92. [PMID: 36734859 DOI: 10.1615/critreveukaryotgeneexpr.2022044734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The long non-coding RNA (lncRNA) myocardial infarction-associated transcript (MIAT) regulates the biological functions of many kinds of cells. The aim of this study is to explore the mechanism of MIAT and how it affects keloid progression. The expressions of MIAT, JAG1, and miR-411-5p in keloid tissues and keloid fibroblasts (KEL FIBs) were quantified by conducting Western blot and quantitative reverse transcription polymerase chain reaction analyses. The influences of MIAT, JAG1, and miR-411-5p on the abilities of KEL FIBs to proliferate, migrate, and invade were assessed by means of the CCK-8, wound healing, and Transwell experiments. To determine the binding relationship among MIAT, JAG1, and miR-411-5p, we performed luciferase reporter and RIP experiments. In keloid tissues and KEL FIBs, MIAT and JAG1 were upregulated while miR-411-5p was downregulated. Knocking-down MIAT or JAG1 significantly inhibited proliferation, migration and invasion. On the contrary, suppressing miR-411-5p expression produced an opposite effect. With regard to mechanisms, MIAT sponged miR-411-5p, which targeted JAG1. MIAT accelerates keloid formation by modulating the miR-411-5p/JAG1 axis.
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Affiliation(s)
- Yingyan Yu
- Department of Dermatology, University of Electronic Science and Technology of China Hospital, Chengdu 611731, Sichuan, China
| | - Yujie Dong
- Department of Dermatology, Kun Ming Li Du Medical Beauty Hospital, Kunming 650000, Yunnan, China
| | - Benyuan Deng
- Department of General Surgery, West China Health Care Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Ting Yang
- Department of Plastic Surgery and Cosmetic Dermatology, West China School/Hospital of Stomatology Sichuan University, Chengdu 610041, Sichuan, China
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19
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Ma Y, Liu Z, Miao L, Jiang X, Ruan H, Xuan R, Xu S. Mechanisms underlying pathological scarring by fibroblasts during wound healing. Int Wound J 2023. [PMID: 36726192 DOI: 10.1111/iwj.14097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/09/2023] [Indexed: 02/03/2023] Open
Abstract
Pathological scarring is an abnormal outcome of wound healing, which often manifests as excessive proliferation and transdifferentiation of fibroblasts (FBs), and excessive deposition of the extracellular matrix. FBs are the most important effector cells involved in wound healing and scar formation. The factors that promote pathological scar formation often act on the proliferation and function of FB. In this study, we describe the factors that lead to abnormal FB formation in pathological scarring in terms of the microenvironment, signalling pathways, epigenetics, and autophagy. These findings suggest that understanding the causes of abnormal FB formation may aid in the development of precise and effective preventive and treatment strategies for pathological scarring that are associated with improved quality of life of patients.
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Affiliation(s)
- Yizhao Ma
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Zhifang Liu
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - LinLin Miao
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Xinyu Jiang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Hongyu Ruan
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Rongrong Xuan
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Suling Xu
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
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20
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Zhu Z, Ni S, Zhang J, Yuan Y, Bai Y, Yin X, Zhu Z. Genome-wide analysis of dysregulated RNA-binding proteins and alternative splicing genes in keloid. Front Genet 2023; 14:1118999. [PMID: 36777722 PMCID: PMC9908963 DOI: 10.3389/fgene.2023.1118999] [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: 12/08/2022] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
Introduction: The pathogenesis of keloids remains unclear. Methods: In this study, we analyzed RNA-Seq data (GSE113619) of the local skin tissue of 8 keloid-prone individuals (KPI) and 6 healthy controls (HC) before and 42 days after trauma from the gene expression omnibus (GEO) database. The differential alternative splicing (AS) events associated with trauma healing between KPIs and HCs were identifified, and their functional differences were analyzed by gene ontology (GO) and kyoto encyclopedia of genes and genomes (KEGG) pathways. The co-expression relationship of differentially alternative splicing genes and differentially expressed RNA binding proteins (RBPs) was established subsequently. Results: A total of 674 differential AS events between the KD42 and the KD0 and 378 differential AS events between the HD42 and the HD0 were discovered. Notably, most of the differential genes related to keloids are enriched in actin, microtubule cells, and cortical actin cytoskeletal tissue pathway. We observed a signifificant association between AS genes (EPB41, TPM1, NF2, PARD3) and trauma healing in KPIs and HCs. We also found that the differential expression of healthy controls-specifific trauma healing-related RBPs (TKT, FDPS, SAMHD1) may affect the response of HCs to trauma healing by regulating the AS of downstream trauma healing-related genes such as DCN and DST. In contrast, KPIs also has specifific differential expression of trauma healing related RBPs (S100A9, HspB1, LIMA1, FBL), which may affect the healing response of KPIs to trauma by regulating the AS of downstream trauma healing-related genes such as FN1 and TPM1. Discussion: Our results were innovative in revealing early wound healing-related genes (EPB41, TPM1, NF2, PARD3) in KPI from the perspective of AS regulated by RBPs.
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Affiliation(s)
- Zhen Zhu
- Hangzhou Plastic Surgery Hospital, Hangzhou, China
| | - Shuangying Ni
- Department of Dermatology, The First Affiliated Hospital, Institute of Dermatology, Anhui Medical University, Hefei, China,The Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China
| | - Jiali Zhang
- Department of Dermatology, The First Affiliated Hospital, Institute of Dermatology, Anhui Medical University, Hefei, China,The Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China
| | - Ying Yuan
- Department of Dermatology, The First Affiliated Hospital, Institute of Dermatology, Anhui Medical University, Hefei, China,The Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China
| | - Yun Bai
- Department of Plastic Surgery, The First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Xueli Yin
- Functional Experiment Center, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Zhengwei Zhu
- Department of Dermatology, The First Affiliated Hospital, Institute of Dermatology, Anhui Medical University, Hefei, China,The Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China,*Correspondence: Zhengwei Zhu,
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Ren S, Ji Y, Wang M, Ye M, Huang L, Cai X. The m6A demethylase FTO promotes keloid formation by up-regulating COL1A1. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:15. [PMID: 36760238 PMCID: PMC9906204 DOI: 10.21037/atm-22-6021] [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: 11/01/2022] [Accepted: 12/27/2022] [Indexed: 01/16/2023]
Abstract
Background Keloid is a dermal fibrotic disease characterized by excessive proliferation of dermal fibroblasts and deposition of excessive collagen. N6-methyladenosine (m6A) plays a significant role in numerous physiological and pathological regulatory processes in the human body. Fat mass and obesity-associated protein (FTO) is one of the most essential m6A demethylases. However, whether FTO has a regulatory role in keloid development remains to be determined. Methods In this study, we investigated the effects of the m6A demethylase FTO on keloid formation by performing hematoxylin and eosin (H&E) staining, m6A dot blotting, transwell migration experiment, and methylated RNA immunoprecipitation quantitative polymerase chain reaction (MeRIP-qPCR) tests, as well as real-time PCR (RT-PCR) and Western blot assays. Results The H&E staining indicated abnormal arrangement and proliferation of fibroblasts in the keloid tissue. The m6A dot blotting and qPCR revealed lower levels of m6A modification and increased expression of the m6A demethylases FTO in keloid tissue. Furthermore, overexpression of FTO promoted fibroblast migration as well as the expression of collagen type I alpha 1 chain (COL1A1) and α-smooth muscle actin (α-SMA). Mechanistic experiments demonstrated that FTO enhances keloid formation by modulating COL1A1 m6A modification and messenger RNA (mRNA) stability. In addition, this study also revealed the role of FTO in the therapeutic effect of glucocorticoids on keloids. Conclusions Our study demonstrates that FTO upregulates COL1A1 expression via regulating COL1A1 m6A modification and maintaining mRNA stability, hence promoting keloid development and providing a potential new therapeutic target for the treatment of keloids.
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Jin M, Xu X. MicroRNA-182-5p Inhibits Hypertrophic Scar Formation by Inhibiting the Proliferation and Migration of Fibroblasts via SMAD4 Pathway. Clin Cosmet Investig Dermatol 2023; 16:565-580. [PMID: 36919011 PMCID: PMC10008340 DOI: 10.2147/ccid.s397808] [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: 11/21/2022] [Accepted: 02/22/2023] [Indexed: 03/16/2023]
Abstract
Introduction Secondary to war wounds, trauma, etc., hypertrophic scar formation is the cause of an excessive proliferation of fibroblasts and accumulation of collagen fibers, which might affect cosmetic appearance, and could cause malignant transformation. miRNAs play an important role in disease regulation via inhibiting post-transcriptional protein translation by targeting and binding to the 3' UTR region of mRNA. Here we explore the mechanism and interventions of scar formation from the perspective of miRNA. Methods Hypertrophic scar-associated differential miRNAs were screened by analyzing sequencing data of normal skin and hypertrophic scar, and verified by RT-qPCR. Signaling pathways that may be influenced by differentially miRNAs were analyzed using KEGG and GO. miRNA mimics were used to explore the effects of miRNAs on SMAD signaling pathway proteins. Dual-luciferase assays were used to explore the targeted binding of miRNAs. The mimics of the miRNA were used to explore the impact of miRNAs on the proliferation, migration, apoptosis and collagen synthesis levels of hypertrophic scar fibroblasts. The scar model of rabbit ear was used to verify the influence of miRNA on wound healing and scar formation in vivo. Results Expression of miR-182-5p was found to be considerably decreased in hypertrophic scars and fibroblasts. miR-182-5p was found to act mainly by targeting the 3'UTR region of SMAD4, but not SMAD1 or SMAD3. miR-182-5p overexpression may drastically suppress the proliferation and migration of fibroblasts, accompanied by enhanced apoptosis and reduced collagen fiber synthesis. The overexpression of miR-182-5p in in vivo experiments could effectively inhibit hypertrophic scar formation without affecting the speed and quality of wound healing. Conclusion miR-182-5p inhibits hypertrophic scar formation by decreasing the proliferation and migration of fibroblasts via SMAD4 pathway, and is expected to become a novel hypertrophic scar therapeutic target.
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Affiliation(s)
- Mingzhu Jin
- Department of Burns and Plastic Surgery, Fourth Medical Center of Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Xiao Xu
- Department of Ophthalmology, Third Medical Center of Chinese PLA General Hospital, Beijing, People's Republic of China
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Xu H, Wang Z, Yang H, Zhu J, Hu Z. Bioinformatics analysis and identification of dysregulated
POSTN
in the pathogenesis of keloid. Int Wound J 2022; 20:1700-1711. [PMID: 36517972 PMCID: PMC10088861 DOI: 10.1111/iwj.14031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022] Open
Abstract
Keloid is a benign fibro-proliferative dermal tumour formed by an abnormal scarring response to injury and characterised by excessive collagen accumulation and invasive growth. The pathophysiology of keloids is complex, and the treatment for keloids is still an unmet medical need. Here, we investigated the transcriptional gene that influences keloid development by comparing keloid, non-lesioned keloid skin and normal skin as well as keloid fibroblast and normal fibroblast (GSE83286, GSE92566, GSE44270). Based on the analysis, 146 up-regulated genes and 48 down-regulated genes were found in keloid tissue compared with normal skin and keloid no-lesioned skin. Eleven genes were further identified by overlapping the DEGs from keloid tissue described previously with DEGs in keloid fibroblast. The overlapped genes included PRR16, SFRP2, EDIL3, GERM1, POSTN, PDE3A, GALNT5, F2RL2, EYA4, ZFHX4, and AIM2. POSTN is the most crucial node in PPI network, which mainly correlate to collagen-related genes. Moreover, siRNA knockdown identified POSTN is a crucial regulatory gene that regulates keloid fibroblast migration and collagen I, collagen III expression level. In conclusion, our study identified 11 hub genes that play crucial role in keloid formation and provided insights for POSTN to be the therapeutic target for keloid through bioinformatic analysis of three datasets. Additionally, our results would support the development of future therapeutic strategies.
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Affiliation(s)
- Hailin Xu
- First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Zhiyong Wang
- First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Hao Yang
- First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Jiayuan Zhu
- First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
| | - Zhicheng Hu
- First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
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24
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Yu X, Zhu X, Li L, Gao G. Circular RNAs: Emerging players in the pathogenesis of keloid. Front Physiol 2022; 13:1008364. [PMID: 36439262 PMCID: PMC9681797 DOI: 10.3389/fphys.2022.1008364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 09/15/2022] [Indexed: 11/27/2023] Open
Abstract
Circular RNAs (circRNAs) are a new type of non-coding RNAs originating from precursor messenger RNAs. Recent research has confirmed that circRNAs play a significant role in various biological and pathological processes, including cell viability, migration, and apoptosis. Emerging studies have demonstrated that the deregulated circRNA-miRNA-mRNA interaction network plays a key role in the development of many diseases. Increasing evidence has highlighted the role of ncRNAs (mainly miRNAs and lncRNAs) in the pathogenesis of keloids. Recently, several publications also indicated that circRNAs contribute to keloid development. The discovery of circRNAs changed the current understanding of the biology of keloids It is crucial to elucidate a circRNA-miRNA-mRNA network to understand the pathological mechanism of keloids. In the present review, we summarize the aberrant expression of regulatory roles of circRNAs in keloids. We discuss the potential clinical application of circRNAs in the diagnosis and treatment of keloids.
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Affiliation(s)
| | | | - Linfeng Li
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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25
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Hu Y, Zhou X, Chen L, Li R, Jin S, Liu L, Ju M, Luan C, Chen H, Wang Z, Huang D, Chen K, Zhang J. Landscape of circulating metabolic fingerprinting for keloid. Front Immunol 2022; 13:1005366. [PMID: 36248839 PMCID: PMC9559814 DOI: 10.3389/fimmu.2022.1005366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/12/2022] [Indexed: 11/20/2022] Open
Abstract
Background Keloids are a fibroproliferative disease characterized by unsatisfactory therapeutic effects and a high recurrence rate. Objective This study aimed to investigate keloid-related circulating metabolic signatures. Methods Untargeted metabolomic analysis was performed to compare the metabolic features of 15 keloid patients with those of paired healthy volunteers in the discovery cohort. The circulating metabolic signatures were selected using the least absolute shrinkage. Furthermore, the selection operators were quantified using multiple reaction monitoring-based target metabolite detection methods in the training and test cohorts. Results More than ten thousand metabolic features were consistently observed in all the plasma samples from the discovery cohort, and 30 significantly different metabolites were identified. Four differentially expressed metabolites including palmitoylcarnitine, sphingosine, phosphocholine, and phenylalanylisoleucine, were discovered to be related to keloid risk in the training and test cohorts. In addition, using linear and logistic regression models, the respective risk scores for keloids based on a 4-metabolite fingerprint classifier were established to distinguish keloids from healthy volunteers. Conclusions In summary, our findings show that the characteristics of circulating metabolic fingerprinting manifest phenotypic variation in keloid onset.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Dan Huang
- *Correspondence: Dan Huang, ; Kun Chen, ; Jiaan Zhang,
| | - Kun Chen
- *Correspondence: Dan Huang, ; Kun Chen, ; Jiaan Zhang,
| | - Jiaan Zhang
- *Correspondence: Dan Huang, ; Kun Chen, ; Jiaan Zhang,
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26
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Liu S, Yang H, Song J, Zhang Y, Abualhssain ATH, Yang B. Keloid: Genetic susceptibility and contributions of genetics and epigenetics to its pathogenesis. Exp Dermatol 2022; 31:1665-1675. [PMID: 36052657 DOI: 10.1111/exd.14671] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/29/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022]
Abstract
Keloid, characterized by fibroproliferative disorders of the skin, can be developed in people of different genders, ages, and ethnicities. Keloid can appear in any part of the body but are especially common on the earlobe, upper torso, and triangular muscle. The genetic heterogeneity and susceptibility of KD (keloid) vary among different races and ethnicities. Studies have found that multiple loci on multiple chromosomes are associated with the pathogenesis of KD, and specific gene variants may also be involved. Despite multiple investigations attempting to uncover the etiology of keloid formation, the genetic mechanism of keloid formation remains unknown. To establish a foundation for a better understanding of the genetics and epigenetics of keloids, we have evaluated and summarized current studies which are mostly related to heredity, genetic polymorphisms, predisposing gene, DNA methylation, and non-coding RNA. We also discussed the problems and potential of genetic and epigenetic investigations of keloids, with the goal of developing new therapeutic approaches to enhance the prognosis of keloid patients.
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Affiliation(s)
- Shuangfei Liu
- Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Huan Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Jinru Song
- Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Yue Zhang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
| | | | - Bin Yang
- Dermatology Hospital of Southern Medical University, Guangzhou, China
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Kuai Q, Jian X. Inhibition of miR-23b-3p Ameliorates Scar-Like Phenotypes of Keloid Fibroblasts by Facilitating A20 Expression. Clin Cosmet Investig Dermatol 2022; 15:1549-1559. [PMID: 35967914 PMCID: PMC9365020 DOI: 10.2147/ccid.s367347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/20/2022] [Indexed: 12/16/2022]
Abstract
Purpose Accumulating evidence has reported that microRNAs (miRNAs) play a critical role in the mechanism of keloid formation, and recent research found that miR-23b-3p was upregulated in keloid fibroblasts (KFs). Herein, we explored the potential effect of miR-23b-3p on fibroblasts in keloid. Materials and Methods Clinical tissues, primary KFs and KEL FIB cells were used to detect the expression of miR-23b-3p by performing qRT-PCR. Gene knockdown was carried out to evaluate the molecular and biological changes of primary KFs and KEL FIB cells by conducting CCK-8 assay, flow cytometry and Western blot. The online databases and luciferase reporter assay were utilized to screen and identify the potential target of miR-23b-3p. Results Upregulation of miR-23b-3p was detected in keloid tissues, primary KFs and KF cell line KEL FIB cells, and inhibition of miR-23b-3p promoted apoptosis and suppressed proliferation and the expression of collagen I, collagen III and fibronectin of primary KFs and KEL FIB cells. Further investigation revealed that TNFAIP3, the ubiquitin-editing enzyme A20, was the direct target of miR-23b-3p, and inhibition of miR-23b-3p promoted the expression of A20 in primary KFs and KEL FIB cells. The in vitro assays indicated that A20 suppression inhibited apoptosis and facilitated proliferation and the expression of collagen I, collagen III and fibronectin of miR-23b-3p inhibitor-transfected primary KFs and KEL FIB cells. Finally, we found that miR-23b-3p inhibitor reduced the expression of receptor interacting serine/threonine protein kinase 1 (RIPK1), which was partially reversed by A20 inhibition. Conclusion These findings suggested that inhibition of miR-23b-3p/A20/RIPK1 axis induced apoptosis, limited proliferation and decreased extracellular matrix of KFs, providing a potential therapeutic target for treatment of keloid.
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Affiliation(s)
- Quan Kuai
- Department of Plastic Surgery, Guangxi Weimei Cosmetology Hospital, Nanning, People’s Republic of China
| | - Xueping Jian
- Department of Oral and Maxillofacial Surgery and Plastic Surgery, the Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, People’s Republic of China
- Correspondence: Xueping Jian, Department of Oral and Maxillofacial Surgery and Plastic Surgery, the Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, People’s Republic of China, Tel +86-0791-86362541, Email
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Identifying miRNAs Associated with the Progression of Keloid through mRNA-miRNA Network Analysis and Validating the Targets of miR-29a-3p in Keloid Fibroblasts. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6487989. [PMID: 35872873 PMCID: PMC9300312 DOI: 10.1155/2022/6487989] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/24/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022]
Abstract
Background. Keloid has brought great trouble to people and currently has no uniformly successful treatment. It is urgent to find new targets to effectively prevent the progress of keloid. The current research mainly identifies the differentially expressed genes (DEGs) in keloid through high-throughput sequencing technology and bioinformatics analysis technology, to screen new therapeutic targets and potential biomarkers. However, due to the different samples, different control groups, and small sample sizes, the sequencing results obtained from different studies are quite different and lack reliability. It is necessary to analyze the existing datasets in a reasonable way. Methods. Datasets about keloid were filtered in Gene Expression Omnibus (GEO) and ArrayExpress databases according to the inclusion and exclusion criteria. The discovery datasets were used for summarizing significant DEGs, and the validation datasets were to validate the mRNA and miRNA expression levels. The Encyclopedia of RNA Interactomes (ENCORI) online platform was used to predict the interactions between miRNAs and their target mRNAs. Protein-protein interaction network (PPI network) analysis and functional enrichment analysis were conducted. miRNA-mRNA network was established by Cytoscape software and verified in keloid tissue (
) by RT-qPCR. miR-29a-3p mimic and inhibitor were transfected into keloid fibroblasts (KFs) to preliminary verify its targets, the prognostic value of which was estimated by the receiver operating characteristic (ROC) curve. Results. A total of 6 datasets involving 20 patients were included. 15 miRNAs and 12 target mRNAs were identified as potential biomarkers for keloid patients. The RT-qPCR results showed that miR-29a-3p, miR-92a-3p, and miR-143-3p were downregulated, and all their target mRNAs were upregulated in keloid tissue (
). The expression of COL1A1, COL1A2, COL3A1, COL5A1, and COL5A2 decreased when miR-29a-3p was overexpressed but increased when miR-29a-3p was knocked down (
). And these genes had a good performance in the diagnosis of keloid, especially when using keloid nonlesional skin or normal scar tissues as controls. Conclusion. The miRNA-mRNA network, especially miR-29a-3p and its targets, may provide insights into the underlying pathogenesis of keloid and serve as potential biomarkers for keloid treatment.
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Chen Y, Chen C, Fang J, Su K, Yuan Q, Hou H, Xin H, Sun J, Huang C, Li S, Yuan Z, Luo S. Targeting the Akt/PI3K/mTOR signaling pathway for complete eradication of keloid disease by sunitinib. Apoptosis 2022; 27:812-824. [PMID: 35802302 DOI: 10.1007/s10495-022-01744-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2022] [Indexed: 11/24/2022]
Abstract
Keloid disease is a nodular lesion, tumor-like but not cancerous, and characterized of excessive proliferation of fibroblasts and deposition of extracellular matrix (ECM) components. This condition often causes itching, pain and cosmetic disfigurement, significantly reducing patient quality of life. To date, no universally effective therapies are available, possibly due to inadequate understanding of keloid pathogenesis. As an oral small-molecule inhibitor of certain tyrosine kinase receptors, sunitinib has shown significant therapeutic effects in renal cell carcinoma (RCC) and gastrointestinal stromal tumor (GIST). However, it has never been tested if keloid therapy can be effective for the management of keloids. This study thus aims to explore the potential of sunitinib for keloid treatment. Keloid-derived fibroblasts (KFs) were successfully isolated and demonstrated proliferative advantage to normal skin-derived fibroblasts (NFs). Additionally, sunitinib showed specific cytotoxicity and inhibition of invasion, and induced cell cycle arrest and significant apoptosis in KFs. These effects were accompanied by complete suppression of ECM component expression, including collagen types 1 and 3, upregulation of autophagy-associated LC3B and significant suppression of the Akt/PI3K/mTOR pathway. Moreover, a keloid explant culture model was successfully established and used to test the therapeutic efficacy of sunitinib on keloid formation in nude mice. Sunitinib was found to induce complete regression of keloid explant fragments in nude mice, showing significantly higher therapeutic efficacy than the most commonly used intralesional drug triamcinolone acetonide (TAC). These data suggest that sunitinib effectively inhibits keloid development through suppression of the Akt/PI3K/mTOR pathway and thus can be potentially developed as a monotherapy or combination therapy for the effective treatment of keloid disease.
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Affiliation(s)
- Yiqing Chen
- The Second School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, China.,Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Chunlin Chen
- Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Junren Fang
- The Second School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, China.,Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China
| | - Kui Su
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China
| | - Qian Yuan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China
| | - Huan Hou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China
| | - Huijuan Xin
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, 510317 Guangzhou, China
| | - Jianwu Sun
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China
| | - Chaohong Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China
| | - Shuyi Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China
| | - Zhengqiang Yuan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510006, Guangzhou, China.
| | - Shengkang Luo
- The Second School of Clinical Medicine, Southern Medical University, 510515, Guangzhou, China. .,Department of Plastic and Reconstructive Surgery, Guangdong Second Provincial General Hospital, 510317, Guangzhou, China.
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Long non-coding RNA HOXA11-AS contributes to the formation of keloid by relieving the inhibition of miR-182-5p on ZNF217. Burns 2022:S0305-4179(22)00192-9. [DOI: 10.1016/j.burns.2022.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 11/19/2022]
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Huang RL, Liu C, Fu R, Yan Y, Yang J, Wang X, Li Q. Downregulation of PLK4 expression induces apoptosis and G0/G1-phase cell cycle arrest in keloid fibroblasts. Cell Prolif 2022; 55:e13271. [PMID: 35670224 PMCID: PMC9251049 DOI: 10.1111/cpr.13271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 02/05/2023] Open
Abstract
Objectives Keloids are benign fibroproliferative tumors that display many cancer‐like characteristics, such as progressive uncontrolled growth, lack of spontaneous regression, and extremely high rates of recurrence. Polo‐like kinase 4 (PLK4) was recently identified as a master regulator of centriole replication, and its aberrant expression is closely associated with tumorigenesis. This study aimed to investigate the expression and biological role of PLK4 in the pathogenesis of keloids. Materials and Methods We evaluated the expression of PLK4 in keloids and adjacent normal skin tissue samples. Then, we established PLK4 knockdown and overexpression cell lines in keloid fibroblasts (KFs) and normal skin fibroblasts (NFs), respectively, to investigate the roles of PLK4 in the regulation of proliferation, migration, invasion, apoptosis, and cell cycle in KFs. Centrinone B (Cen‐B), a highly selective PLK4 inhibitor, was used to inhibit PLK4 activity in KFs to evaluate the therapeutic effect on KFs. Results We discovered that PLK4 was overexpressed in keloid dermal samples and KFs compared with adjacent normal skin samples and NFs derived from the same patients. High PLK4 expression was positively associated with the proliferation, migration, and invasion of KFs. Furthermore, knockdown of PLK4 expression or inhibition of PLK4 activity by Cen‐B suppressed KF growth, induced KF apoptosis via the caspase‐9/3 pathway, and induced cell cycle arrest at the G0/G1 phase in vitro. Conclusions These findings demonstrate that PLK4 is a critical regulator of KF proliferation, migration, and invasion, and thus, Cen‐B is a promising candidate drug for keloid treatment.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuanqi Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinggang Wang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yin X, Bu W, Fang F, Ren K, Zhou B. Keloid Biomarkers and Their Correlation With Immune Infiltration. Front Genet 2022; 13:784073. [PMID: 35719372 PMCID: PMC9201286 DOI: 10.3389/fgene.2022.784073] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 05/18/2022] [Indexed: 12/05/2022] Open
Abstract
Objective: This work aimed to verify the candidate biomarkers for keloid disorder (KD), and analyze the role of immune cell infiltration (ICI) in the pathology of keloid disorder. Methods: The keloid-related datasets (GSE44270 and GSE145725) were retrieved from the Gene Expression Omnibus (GEO). Then, differential expressed genes (DEGs) were identified by using the “limma” R package. Support vector machine-recursive feature elimination (SVM-RFE) and LASSO logistic regression were utilized for screening candidate biomarkers of KD. The receiver operating characteristic (ROC) curve was used to evaluate the diagnostic power of candidate biomarkers. The candidate biomarkers were further verified through qRT-PCR of keloid lesions and the matched healthy skin tissue collected from eight cases. In addition, ICI in keloid lesions was estimated through single-sample gene-set enrichment analysis (ssGSEA). Finally, the potential drugs to the treatment of KD were predicted in the Connectivity Map Database (CMAP). Results: A total of 406 DEGs were identified between keloid lesion and healthy skin samples. Among them, STC2 (AUC = 0.919), SDC4 (AUC = 0.970), DAAM1 (AUC = 0.966), and NOX4 (AUC = 0.949) were identified as potential biomarkers through the SVM-RFE, LASSO analysis and ROC analysis. The differential expressions of SDC4, DAAM1, and NOX4 were further verified in collected eight samples by qRT-PCR experiment. ICI analysis result showed a positive correlation of DAAM1 expression with monocytes and mast cells, SDC4 with effector memory CD4+ T cells, STC2 with T follicular helper cells, and NOX4 with central memory CD8+ T cells. Finally, a total of 13 candidate small molecule drugs were predicted for keloids treatment in CMAP drug database. Conclusion: We identified four genes that may serve as potential biomarkers for KD development and revealed that ICI might play a critical role in the pathogenesis of KD.
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Affiliation(s)
- Xufeng Yin
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wenbo Bu
- Department of Dermatologic Surgery, Dermatology Hospital of Chinese Academy of Medical Sciences, Nanjing, China
| | - Fang Fang
- Department of Dermatologic Surgery, Dermatology Hospital of Chinese Academy of Medical Sciences, Nanjing, China
| | - Kehui Ren
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Bingrong Zhou
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Bingrong Zhou,
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Feng F, Liu M, Pan L, Wu J, Wang C, Yang L, Liu W, Xu W, Lei M. Biomechanical Regulatory Factors and Therapeutic Targets in Keloid Fibrosis. Front Pharmacol 2022; 13:906212. [PMID: 35614943 PMCID: PMC9124765 DOI: 10.3389/fphar.2022.906212] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/25/2022] [Indexed: 01/10/2023] Open
Abstract
Keloids are fibroproliferative skin disorder caused by abnormal healing of injured or irritated skin and are characterized by excessive extracellular matrix (ECM) synthesis and deposition, which results in excessive collagen disorders and calcinosis, increasing the remodeling and stiffness of keloid matrix. The pathogenesis of keloid is very complex, and may include changes in cell function, genetics, inflammation, and other factors. In this review, we aim to discuss the role of biomechanical factors in keloid formation. Mechanical stimulation can lead to excessive proliferation of wound fibroblasts, deposition of ECM, secretion of more pro-fibrosis factors, and continuous increase of keloid matrix stiffness. Matrix mechanics resulting from increased matrix stiffness further activates the fibrotic phenotype of keloid fibroblasts, thus forming a loop that continuously invades the surrounding normal tissue. In this process, mechanical force is one of the initial factors of keloid formation, and matrix mechanics leads to further keloid development. Next, we summarized the mechanotransduction pathways involved in the formation of keloids, such as TGF-β/Smad signaling pathway, integrin signaling pathway, YAP/TAZ signaling pathway, and calcium ion pathway. Finally, some potential biomechanics-based therapeutic concepts and strategies are described in detail. Taken together, these findings underscore the importance of biomechanical factors in the formation and progression of keloids and highlight their regulatory value. These findings may help facilitate the development of pharmacological interventions that can ultimately prevent and reduce keloid formation and progression.
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Affiliation(s)
- Fan Feng
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Mingying Liu
- School of Comprehensive Health Management, Xihua University, Chengdu, China
| | - Lianhong Pan
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Jiaqin Wu
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Chunli Wang
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Li Yang
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Wanqian Liu
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- *Correspondence: Wanqian Liu, ; Wei Xu, ; Mingxing Lei,
| | - Wei Xu
- Chongqing Clinical Research Center for Dermatology, Chongqing Key Laboratory of Integrative Dermatology Research, Department of Dermatology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
- *Correspondence: Wanqian Liu, ; Wei Xu, ; Mingxing Lei,
| | - Mingxing Lei
- National Innovation and Attracting Talents “111” Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- *Correspondence: Wanqian Liu, ; Wei Xu, ; Mingxing Lei,
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Yin C, Wang C, Wang C. Aberrantly Expressed Small Noncoding RNAome in Keloid Skin Tissue. Front Genet 2022; 13:803083. [PMID: 35495137 PMCID: PMC9045488 DOI: 10.3389/fgene.2022.803083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 03/17/2022] [Indexed: 11/29/2022] Open
Abstract
The skin is an organ that protects against injury and infection but can be damaged easily. Wound healing is a subtle balance which, if broken, can lead to keloid formation. Small noncoding (nc) RNAs can be of “housekeeping,” for example, ribosomal RNAs and transfer RNAs, or “regulatory,” for example, microRNAs (miRNAs or miRs), small nucleolar RNAs (snoRNAs), and P-element–induced Wimpy testis (PIWI)-interacting RNA (piRNA) types. We examined five types of small ncRNAs [miR, piRNA, snoRNA, small nuclear (sn) RNA, and repeat-associated small interfering RNA (rasiRNA)] in keloid skin tissue (KST) using sequencing and real-time reverse transcription-quantitative polymerase chain reaction. All comparisons were made in relation to expression in normal skin tissue (obtained by abdominoplasty). The expression of three piRNAs was upregulated, and the expression of six piRNAs was downregulated in KST. The expression of 12 snoRNAs was upregulated, and the expression of two snoRNAs was downregulated in KST. The expression of two snRNAs was downregulated in KST. The expression of 18 miRs was upregulated, and the expression of three miRNAs was downregulated in KST. The expression of one rasiRNA was upregulated, and the expression of one rasiRNA was downregulated in KST. We revealed the differential expression of small ncRNAs in KST, which may aid the development of new treatment for keloids.
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Affiliation(s)
- Chuang Yin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuandong Wang
- Department of Orthopedic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Chen Wang, ; Chuandong Wang,
| | - Chen Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Chen Wang, ; Chuandong Wang,
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Wang Q, Wang W, Sun XJ. Construction of a HOXA11-AS-Interact Ed Network in Keloid Fibroblasts Using Integrated Bioinformatic Analysis and in Vitro Validation. Front Genet 2022; 13:844198. [PMID: 35432479 PMCID: PMC9010035 DOI: 10.3389/fgene.2022.844198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/28/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Expression of the long noncoding RNA (lncRNA) HOXA11-AS significantly increased in keloids by unclarified molecular regulation mechanisms. Methods: Using successfully primary cultured keloid-derived fibroblasts from central region of chronic keloid tissues (sample 0), small interfering RNAs were designed and transfected into two keloid fibroblast samples (samples 1 and 2) to knockdown HOXA11-AS. One nonspecific transfection control (sample 3) and one blank control (sample 4) were used to remove nonspecific overlap from the studied group. The lncRNAs, messenger RNAs (mRNAs), and microRNAs (miRNAs) of five samples were sequenced to identify differentially expressed (DE) profiles in HOXA11-AS-knockdown keloid fibroblasts in samples 1 and 2 (by intersection), which facilitated removal of overlap with the nonspecific controls (samples 3 and 4, by union). Using stepwise bioinformatic analysis, a HOXA11-AS-interacted competing endogenous network (ceRNA) was screened based on three DE profiles. Results: Keloid fibroblasts with or without HOXA11-AS as well as with or without nonspecific interferences were successfully constructed respectively. A total of 1,396 mRNAs and 39 lncRNAs were significantly changed in keloid fibroblast with HOXA11-AS knockdown. Simultaneously, 1,626 mRNAs and 99 lncRNAs were significantly changed in keloid fibroblast with nonspecific interference. With removal of nonspecific overlap, a lncRNA–mRNA interactive network characterized by close natural/intronic antisense relationship was initially constructed in keloid fibroblast with HOXA11-AS knockdown. Based on this network, a lncRNA–mRNA–protein interaction network was extended by integration of the human protein–protein interaction network. Significant functional genes were screened using PageRank algorithm in the extended network. Three genes, including SNED1, NIPAL3, and VTN, were validated by real-time PCR in HOXA11-AS-knockdown keloid fibroblasts. Only NIPAL3 was predicted to be a target gene for HOXA11-AS via three competing endogenous miRNAs (hsa-miRNA-19a-3p, hsa-miR-141-3p, and hsa-miR-140-5p). Conclusion: An interactive network of HOXA11-AS–three miRNAs–NIPAL3 was predicted in keloid fibroblasts by integrative bioinformatic analysis and in vitro validation.
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Affiliation(s)
- Qiang Wang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Wei Wang
- Department of Radiology, The First Hospital of Jilin University, Changchun, China
| | - Xiao-jie Sun
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Xiao-jie Sun,
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Thomas A, Farah K, Millis RM. Epigenetic Influences on Wound Healing and Hypertrophic-Keloid Scarring: A Review for Basic Scientists and Clinicians. Cureus 2022; 14:e23503. [PMID: 35371887 PMCID: PMC8958133 DOI: 10.7759/cureus.23503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2022] [Indexed: 12/28/2022] Open
Abstract
Primary care physicians and dermatologists are challenged by patients affected by keloid or hypertrophic scarring resulting from accidental wounding, surgical incisions, tattooing, or “branding” procedures to demonstrate their association with a specific culture, fraternity, or cult. The dysregulated wound healing associated with keloids and hypertrophic scarring adversely affects genetically susceptible individuals, especially persons of color with Fitzpatrick Skin types IV-VI. Although the specific mechanisms of bulky hypertrophic/keloid scarring and its association with oxidative stress and inflammation remain unclear, the current knowledge base is sufficient to provide some guidance to health practitioners who must serve, treat, and counsel affected individuals. This review focuses on providing insight to healthcare professionals about the role of epigenetics, oxidative stress, poor local oxygenation, and its relationship to impaired wound healing. The goal is to promote further research on bulky hypertrophic and keloid scarring for its prevention and to develop evidence-based clinical guidelines for optimal treatment.
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Affiliation(s)
- Asia Thomas
- Pathophysiology, American University of Antigua, Coolidge, ATG
| | - Kanith Farah
- Pathophysiology, American University of Antigua, Coolidge, ATG
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Pang Q, Lin X, Sun J, Hu J, Dai S, Shen Y, Xu M, Xu J. Comprehensive Analysis of Circular RNA Expression in ceRNA Networks and Identification of the Effects of hsa_circ_0006867 in Keloid Dermal Fibroblasts. Front Mol Biosci 2022; 9:800122. [PMID: 35174214 PMCID: PMC8841745 DOI: 10.3389/fmolb.2022.800122] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/03/2022] [Indexed: 01/07/2023] Open
Abstract
Circular RNAs (circRNAs) play a crucial role in the pathogenesis of various fibrotic diseases, but the potential biological function and expression profile of circRNAs in keloids remain unknown. Herein, microarray technology was applied to detect circRNA expression in four patient-derived keloid dermal fibroblasts (KDFs) and normal dermal fibroblasts (NDFs). A total of 327 differentially expressed (DE) circRNAs (fold change > 1.5, p < 0.05) were identified with 195 upregulated and 132 downregulated circRNAs. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses showed that the upregulated circRNAs were mainly enriched in the cytoskeleton and tight junctions, while the downregulated circRNAs were related to morphogenesis of the epithelium and axonal guidance. To explore the function of DE circRNAs, a circRNA-miRNA-mRNA network, including five circRNAs, nine miRNAs, and 235 correlated mRNAs, was constructed using bioinformatics analyses. The expression of five DE circRNAs was validated by qRT–PCR in 18 pairs of KDFs and NDFs, and hsa_circ_0006867 showed promising regulatory function in keloids in vitro. Silencing hsa_circ_00006867 suppressed the proliferation, migration, and invasion of keloid fibroblasts. RNA-binding protein immunoprecipitation (RIP) assays indicated that hsa_circ_00006867 may serve as a platform for miRNA binding to Argonaute (AGO) 2. In addition, hsa-miR-29a-5p may be a potential target miRNA of hsa_circ_00006867. Taken together, our research provided multiple novel clues to understand the pathophysiologic mechanism of keloids and identified hsa_circ_0006867 as a biomarker of keloids.
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Wu F, He H, Chen Y, Zhu D, Jiang T, Wang J. CircPDE7B/miR-661 axis accelerates the progression of human keloid fibroblasts by upregulating fibroblast growth factor 2 (FGF2). Mol Cell Biochem 2022; 477:1113-1126. [DOI: 10.1007/s11010-021-04345-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 12/22/2021] [Indexed: 12/11/2022]
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Gao N, Lu L, Ma X, Liu Z, Yang S, Han G. Targeted inhibition of YAP/TAZ alters the biological behaviours of keloid fibroblasts. Exp Dermatol 2021; 31:320-329. [PMID: 34623712 DOI: 10.1111/exd.14466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 08/08/2021] [Accepted: 09/22/2021] [Indexed: 12/18/2022]
Abstract
Abnormal activation of fibroblasts plays a crucial role in keloid development. However, the mechanism of fibroblast activation remains to be determined. YAP/TAZ are key molecules in the Hippo signalling pathway that promote cell proliferation and inhibit apoptosis. Here, we show that keloid fibroblasts have higher levels of YAP/TAZ mRNA and proteins on primary culture. Targeted knockdown of endogenous YAP or TAZ significantly inhibited cell proliferation, reduced cell migration, induced cell apoptosis and down-regulated collagen1a1 production by keloid fibroblasts. Moreover, we demonstrate that verteporfin, an inhibitor of YAP/TAZ, has similar but stronger inhibitory effects on fibroblasts compared to YAP/TAZ knockdown. Our study provides evidence that YAP/TAZ may be involved in the pathogenesis of keloids. Targeted inhibition of YAP/TAZ could change the biological behaviours of fibroblasts and can potentially be used as therapy for keloids.
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Affiliation(s)
- Na Gao
- Department of Dermatology, Peking University International Hospital, Beijing, China
| | - Lulu Lu
- Department of Dermatology, Peking University International Hospital, Beijing, China
| | - Xiaolei Ma
- Department of Dermatology, Peking University International Hospital, Beijing, China
| | - Zhengyi Liu
- Department of Dermatology, Peking University International Hospital, Beijing, China
| | - Shuxia Yang
- Department of Dermatology and Venereology, National Clinical Research Center for Skin and Immune Diseases, Peking University First Hospital, Beijing, China
| | - Gangwen Han
- Department of Dermatology, Peking University International Hospital, Beijing, China
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Liu SC, Bamodu OA, Kuo KT, Fong IH, Lin CC, Yeh CT, Chen SG. Adipose-derived stem cell induced-tissue repair or wound healing is mediated by the concomitant upregulation of miR-21 and miR-29b expression and activation of the AKT signaling pathway. Arch Biochem Biophys 2021; 705:108895. [PMID: 33933426 DOI: 10.1016/j.abb.2021.108895] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 04/22/2021] [Accepted: 04/25/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Adipose-derived stem cells (ADSCs), a subpopulation of mesenchymal stem cells, are characterized by their potential to differentiate into multiple cell lineages. Due to their abundance and relative ease of procurement, ADSCs are widely used for tissue repair and regeneration. However, the molecular mechanisms of the therapeutic effect of ADSCs remain unknown. METHODS MicroRNAs have emerged as important signaling molecules in skin wound healing, and their roles in ADSC-based therapies must be addressed. Here, we investigated the potential of ADSCs in improving cutaneous wound healing in vitro and in vivo. RESULTS We simulated the microenvironment of the wound site by coculturing human dermal fibroblasts (HDFs) with ADSCs. We found that cocultured HDFs expressed significantly higher levels of miR-29b and miR-21 and had higher proliferation and migration rates than ADSCs cultured without HDFs. Moreover, increased expression of Collagen Type I Alpha 1 Chain (COL1A1), Collagen Type III Alpha 1 Chain (COL3A1), alpha-smooth muscle actin (α-SMA), vascular endothelial growth factor (VEGF), and Phosphoinositide 3-kinase (PI3K), p-Akt and decreased expression of Phosphatase and tensin homolog (PTEN) and matrix metalloproteinase (MMP)-1 was detected, suggesting extracellular remodeling and fibroblast activation and proliferation. We validated the in vitro results by using a rodent skin excisional wound model and implanted ADSC sheets in the wound. Compared with the controls, wounds implanted with ADSC sheets had significantly higher rates of wound-closure; increased expression of α-SMA, VEGF, PI3k, PTEN, COL1A1, and COL3A1; decreased expression of PTEN and MMP1; and upregulated levels of miR-29b and miR-21 in the skin. CONCLUSION In summary, we evidenced that ADSCs facilitate the increase in miR-29b and miR-21 levels and promote the activation and proliferation of dermal fibroblasts and extracellular matrix (ECM) remodeling, with the associated release of VEGF. Thus, the ADSC-mediated increase in microRNAs is essential in tissue repair and has a therapeutic potential in cutaneous wound healing.
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Affiliation(s)
- Shao-Cheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City, 114, Taiwan.
| | - Oluwaseun Adebayo Bamodu
- Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan.
| | - Kuang-Tai Kuo
- Division of Thoracic Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Division of Thoracic Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Iat-Hang Fong
- Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan.
| | - Chih-Cheng Lin
- Department of Biotechnology and Pharmaceutical, Yuanpei University of Medical Technology, No. 306, Yuanpei Street, Hsinchu, Taiwan.
| | - Chi-Tai Yeh
- Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Biotechnology and Pharmaceutical, Yuanpei University of Medical Technology, No. 306, Yuanpei Street, Hsinchu, Taiwan.
| | - Shyi-Gen Chen
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan; Division of Plastic and Reconstructive Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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Qi X, Liu Y, Yang M. Circ_0057452 functions as a ceRNA in hypertrophic scar fibroblast proliferation and VEGF expression by regulating TGF-β2 expression and adsorbing miR-145-5p. Am J Transl Res 2021; 13:6200-6210. [PMID: 34306359 PMCID: PMC8290727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 03/07/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To explore the mechanism by which circ_0057452/miR-145-5p/TGF-β2 axis regulates fibroblast proliferation as well as VEGF expression in hypertrophic scars (HS). METHODS The expression of circ_0057452, miR-145-5p and TGF-β2 in HS tissues and fibroblasts was measured by quantitative real-time Polymerase Chain Reaction (qRT-PCR). The targeting relations between circ_0057452 and miR-145-5p, miR-145-5p and TGF-β2 were identified using dual-luciferase reporter assay. The expression of circ_0057452, miR-145-5p and TGF-β2 in fibroblasts was interfered with and cells were grouped. In each group, changes in cell proliferation were detected using CCK8 assay, apoptosis was measured by flow cytometry, and VEGF secreted in cell culture supernatant was tested by ELISA kit. RESULTS Compared with normal tissues and fibroblasts, the expressions of circ_0057452 and TGF-β2 were increased and miR-145-5p decreased in HS tissues and cells (all P<0.05). Compared with the si-NC group, cell proliferation and VEGF expressions were decreased and the apoptotic rate increased in the si_circ_0057452 group (all P<0.05). Compared with the oe-NC group, cell proliferation and VEGF expression were increased and the apoptotic rate decreased in the oe-circ_0057452 group (all P<0.05). Compared with the oe-circ_0057452 + miR-NC group, the number of apoptotic cells was increased, and cell proliferation, as well as VEGF expression were decreased in the oe-circ_0057452 + miR-145-5p mimic group (all P<0.05). Compared with the miR-NC group, cell proliferation and VEGF expression were reduced and the apoptotic rate was increased in the miR-145-5p mimic group (all P<0.05). Compared with the miR-145-5p mimic + vector group, cell proliferation and VEGF expression were elevated, and apoptosis was inhibited in the miR-145-5p mimic + TGF-β2 group (all P<0.05). CONCLUSION circ_0057452 can competitively bind miR-145-5p to induce the expression of TGF-β2, and then promote the proliferation of HS fibroblasts and secretion of VEGF, which is expected to be effective in the treatment of HS.
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Affiliation(s)
- Xiaoliu Qi
- Department of Burn and Plastic Surgery, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health and Disorders Hangzhou, Zhejiang Province, China
| | - Yuxin Liu
- Department of Burn and Plastic Surgery, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health and Disorders Hangzhou, Zhejiang Province, China
| | - Ming Yang
- Department of Burn and Plastic Surgery, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health and Disorders Hangzhou, Zhejiang Province, China
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42
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Cheng M, Sun L, Huang K, Yue X, Chen J, Zhang Z, Zhao B, Bian E. A Signature of Nine lncRNA Methylated Genes Predicts Survival in Patients With Glioma. Front Oncol 2021; 11:646409. [PMID: 33828990 PMCID: PMC8019920 DOI: 10.3389/fonc.2021.646409] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 02/24/2021] [Indexed: 12/20/2022] Open
Abstract
Glioma is one of the most common malignant tumors of the central nervous system, and its prognosis is extremely poor. Aberrant methylation of lncRNA promoter region is significantly associated with the prognosis of glioma patients. In this study, we investigated the potential impact of methylation of lncRNA promoter region in glioma patients to establish a signature of nine lncRNA methylated genes for determining glioma patient prognosis. Methylation data and clinical follow-up data were obtained from The Cancer Genome Atlas (TCGA). The multistep screening strategy identified nine lncRNA methylated genes that were significantly associated with the overall survival (OS) of glioma patients. Subsequently, we constructed a risk signature that containing nine lncRNA methylated genes. The risk signature successfully divided the glioma patients into high-risk and low-risk groups. Compared with the low-risk group, the high-risk group had a worse prognosis, higher glioma grade, and older age. Furthermore, we identified two lncRNAs termed PCBP1-AS1 and LINC02875 that may be involved in the malignant progression of glioma cells by using the TCGA database. Loss-of-function assays confirmed that knockdown of PCBP1-AS1 and LINC02875 inhibited the proliferation, migration, and invasion of glioma cells. Therefore, the nine lncRNA methylated genes signature may provide a novel predictor and therapeutic target for glioma patients.
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Affiliation(s)
- Meng Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Libo Sun
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Kebing Huang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Xiaoyu Yue
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Jie Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Zhengwei Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Bing Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
| | - Erbao Bian
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, Hefei, China
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43
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Wang XM, Liu XM, Wang Y, Chen ZY. Activating transcription factor 3 (ATF3) regulates cell growth, apoptosis, invasion and collagen synthesis in keloid fibroblast through transforming growth factor beta (TGF-beta)/SMAD signaling pathway. Bioengineered 2020; 12:117-126. [PMID: 33315500 PMCID: PMC8806324 DOI: 10.1080/21655979.2020.1860491] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The successful treatment of keloids is a great challenge in the plastic surgery field. Activating transcription factor 3 (ATF3) is discovered as an adaptive responsive gene, which plays a critical role in fibroblast activation. This study aimed to investigate the expression and biological role of ATF3 in the pathogenesis of keloids. ATF3 expression in normal skins and keloids was evaluated by real-time PCR, western blot and immunohistochemistry. Effects of ATF3 on cell growth, apoptosis, invasion and collagen production were evaluated in keloid fibroblast cells overexpressing or downregulating ATF3. ATF3 expression was significantly elevated in keloid tissues when compared with that of normal skins and parakeloidal skin tissues. Moreover, ATF3 promoted cell proliferation and collagen production in keloid fibroblast cells. Conversely, transfection with siRNA targeting ATF3 led to decreased cell viability and collagen synthesis via inhibiting transforming growth factor-β1 (TGF-β1) and fibroblast growth factor 2/8 (FGF2/8) production in keloid fibroblasts. ATF3 could reduce the apoptosis rate of keloid fibroblast cells. Molecularly, we found that ATF3 promoted BCL2 level and inhibit the expression of BCL2 associated agonist of cell death (Bad), Caspase3 and Caspase9 in keloid fibroblast cells. ATF3 also enhanced the invasive potential via upregulating the expression of Matrix Metalloproteinases (MMP) family members (MMP1, MMP2, MMP9 and MMP13). ATF3 could induce activation of TGF-β/Smad signaling pathway in fibroblasts. Collectively, ATF3 could promote growth and invasion, and inhibit apoptosis via TGF-β/Smad pathway in keloid fibroblast cells, suggesting that ATF3 might be considered as a novel therapeutic target for the management of keloid.
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Affiliation(s)
- Xue-Ming Wang
- Department of Plastic Surgery, Qingdao University , Qingdao, China.,Department of Plastic Surgery, Fujian Provincial Maternity and Children's Hospital , Fuzhou, China
| | - Xiu-Mei Liu
- Child Care Center, Fujian Provincial Maternity and Children's Hospital , Fuzhou, China
| | - Yuting Wang
- Department of Plastic Surgery, Yantai Yuhuangding Hospital , Yantai, China
| | - Zhen-Yu Chen
- Medical Plastic and Cosmetic Center, The Affiliated Hospital of Qingdao University , Qingdao, China
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