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Ma J, Gan L, Chen H, Chen L, Hu Y, Luan C, Chen K, Zhang J. Upregulated miR-374a-5p drives psoriasis pathogenesis through WIF1 downregulation and Wnt5a/NF-κB activation. Cell Signal 2024; 119:111171. [PMID: 38604345 DOI: 10.1016/j.cellsig.2024.111171] [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: 12/26/2023] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Psoriasis is a chronic, inflammatory skin disease. MicroRNAs (miRNAs) are an abundant class of non-coding RNA molecules. Recent studies have shown that multiple miRNAs are abnormally expressed in patients with psoriasis. The upregulation of miR-374a-5p has been associated with psoriasis severity. However, the specific role of miR-374a-5p in the pathogenesis of psoriasis remain unclear. METHODS qRT-PCR was employed to validate the expression of miR-374a-5p in psoriatic lesions and in a psoriasis-like cell model constructed using a mixture of M5 (IL-17A, IL-22, OSM, IL-1α, and TNF-α). HaCaT cells were transfected with miR-374a-5p mimic/inhibitor, and assays including EdU, CCK-8, and flow cytometry were conducted to evaluate the effect of miR-374a-5p on cell proliferation. The expression of inflammatory cytokines IL-1β, IL-6, IL-8, and TNF-α was verified by qRT-PCR. Bioinformatics analysis and dual-luciferase reporter gene assay were performed to detect the downstream target genes and upstream transcription factors of miR-374a-5p, followed by validation of their expression through qRT-PCR and Western blotting. A psoriasis-like mouse model was established using imiquimod cream topical application. The psoriasis area and severity index scoring, hematoxylin-eosin histology staining, and Ki67 immunohistochemistry were employed to validate the effect of miR-374a-5p on the psoriatic inflammation phenotype after intradermal injection of miR-374a-5p agomir/NC. Additionally, the expression of pathway-related molecules and inflammatory factors such as IL-1β, IL-17a, and TNF-α was verified by immunohistochemistry. RESULTS Upregulation of miR-374a-5p was observed in psoriatic lesions and the psoriasis-like cell model. In vitro experiments demonstrated that miR-374a-5p not only promoted the proliferation of HaCaT cells but also upregulated the expression of inflammatory cytokines, including IL-1β, IL-6, IL-8, and TNF-α. Furthermore, miR-374a-5p promoted skin inflammation and epidermal thickening in the Imiquimod-induced psoriasis-like mouse model. Mechanistic studies revealed that miR-374a-5p led to downregulation of WIF1, thereby activating the Wnt5a/NF-κB signaling pathway. The transcription factor p65 encoded by RELA, as a subunit of NF-κB, further upregulated the expression of miR-374a-5p upon activation. This positive feedback loop promoted keratinocyte proliferation and abnormal inflammation, thereby facilitating the development of psoriasis. CONCLUSION Our findings elucidate the role of miR-374a-5p upregulation in the pathogenesis of psoriasis through inhibition of WIF1 and activation of the Wnt5a/NF-κB pathway, providing new potential therapeutic targets for psoriasis.
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Affiliation(s)
- Jing Ma
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Lu Gan
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Hongying Chen
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Lihao Chen
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Yu Hu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China
| | - Chao Luan
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Kun Chen
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
| | - Jiaan Zhang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.
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Zhen Y, Li X, Huang S, Wang R, Yang L, Huang Y, Yan J, Ju J, Wen H, Sun Q. LncRNA lnc-SPRR2G-2 contributes to keratinocyte hyperproliferation and inflammation in psoriasis by activating the STAT3 pathway and downregulating KHSRP. Mol Cell Probes 2024; 76:101967. [PMID: 38942130 DOI: 10.1016/j.mcp.2024.101967] [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: 02/22/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 06/30/2024]
Abstract
Psoriasis is a chronic inflammatory disease characterized by increased keratinocyte proliferation and local inflammation. Long noncoding RNAs (lncRNAs) play important regulatory roles in many immune-mediated diseases, including psoriasis. In this study, we aimed to investigate the role and mechanism of lnc-SPRR2G-2 (SPRR2G) in M5-treated psoriatic keratinocytes. Fluorescence in situ hybridization and quantitative real-time polymerase chain reaction (qRT-PCR) showed that lnc-SPRR2G-2 was significantly upregulated in psoriasis tissues and psoriatic keratinocytes. In psoriatic keratinocytes, functional and molecular experiment analyses demonstrated that SPRR2G regulated proliferation, cell cycle and apoptosis, and induced the expression of S100 calcium binding protein A7 (S100A7), interleukin (IL)-1β, IL-8 and C-X-C motif chemokine ligand 10 (CXCL10). The function of SPRR2G in psoriasis is related to the STAT3 signaling pathway and can be inhibited by a STAT3 inhibitor. Moreover, KH-type splicing regulatory protein (KHSRP) was proved to be regulated by lnc-SPRR2G-2 and to control the mRNA decay of psoriasis-related cytokines (p < 0.05). In summary, we reported the functions of lnc-SPRR2G-2 and KHSRP in psoriasis. Our findings provide new insights for the further exploration of the pathogenesis and treatment of psoriasis.
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Affiliation(s)
- Yunyue Zhen
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China; Laboratory of Basic Medical Science, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Xueqing Li
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China; Laboratory of Basic Medical Science, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Shan Huang
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China; Laboratory of Basic Medical Science, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Ruijie Wang
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China; Laboratory of Basic Medical Science, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Luan Yang
- Department of Dermatology, The Second Affiliated Hospital of Shandong First Medical University, Taian, 271000, Shandong, China
| | - Yingjian Huang
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China; Laboratory of Basic Medical Science, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Jianjun Yan
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China
| | - Jiaoying Ju
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China; Laboratory of Basic Medical Science, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - He Wen
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China.
| | - Qing Sun
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, China.
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Letonja J, Petrovič D. A Review of MicroRNAs and lncRNAs in Atherosclerosis as Well as Some Major Inflammatory Conditions Affecting Atherosclerosis. Biomedicines 2024; 12:1322. [PMID: 38927529 PMCID: PMC11201627 DOI: 10.3390/biomedicines12061322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/05/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
It is generally accepted that atherosclerosis is a chronic inflammatory disease. The link between atherosclerosis and other inflammatory diseases such as psoriasis, type 2 diabetes mellitus (T2DM), and rheumatoid arthritis (RA) via metabolic, inflammatory, and immunoregulatory pathways is well established. The aim of our review was to summarize the associations between selected microRNAs (miRs) and long non-coding RNAs (lncRNAs) and atherosclerosis, psoriasis, T2DM, and RA. We reviewed the role of miR-146a, miR-210, miR-143, miR-223, miR-126, miR-21, miR-155, miR-145, miR-200, miR-133, miR-135, miR-221, miR-424, let-7, lncRNA-H19, lncRNA-MEG3, lncRNA-UCA1, and lncRNA-XIST in atherosclerosis and psoriasis, T2DM, and RA. Extracellular vesicles (EVs) are a method of intracellular signal transduction. Their function depends on surface expression, cargo, and the cell from which they originate. The majority of the studies that investigated lncRNAs and some miRs had relatively small sample sizes, which limits the generalizability of their findings and indicates the need for more research. Based on the studies reviewed, miR-146a, miR-155, miR-145, miR-200, miR-133, and lncRNA-H19 are the most promising potential biomarkers and, possibly, therapeutic targets for atherosclerosis as well as T2DM, RA, and psoriasis.
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Affiliation(s)
- Jernej Letonja
- Institute of Histology and Embryology, Faculty of Medicine, University of Ljubljana, Korytkova 2, 1000 Ljubljana, Slovenia;
- Laboratory for Histology and Genetics of Atherosclerosis and Microvascular Diseases, Institute of Histology and Embryology, Faculty of Medicine, University of Ljubljana, Korytkova 2, 1000 Ljubljana, Slovenia
| | - Danijel Petrovič
- Institute of Histology and Embryology, Faculty of Medicine, University of Ljubljana, Korytkova 2, 1000 Ljubljana, Slovenia;
- Laboratory for Histology and Genetics of Atherosclerosis and Microvascular Diseases, Institute of Histology and Embryology, Faculty of Medicine, University of Ljubljana, Korytkova 2, 1000 Ljubljana, Slovenia
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Li M, Niu M, Fan X, Chen F, Cao H, Liu Q, Gan S, Yue P, Gao J. LncRNA MIR181A2HG inhibits keratinocytes proliferation through miR-223-3p/SOX6 axis. Aging (Albany NY) 2024; 16:9846-9858. [PMID: 38848163 PMCID: PMC11210253 DOI: 10.18632/aging.205902] [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: 11/01/2023] [Accepted: 05/03/2024] [Indexed: 06/09/2024]
Abstract
BACKGROUND Psoriasis is a complex and recurrent chronic inflammatory skin disease, and the abnormal proliferation of keratinocytes plays a crucial role in the pathogenesis of psoriasis. Long non-coding RNAs (lncRNAs) play an indispensable role in regulating cellular functions. This research aims to explore the potential impact of lncRNA MIR181A2HG on the regulation of keratinocyte proliferation. METHODS The expression level of MIR181A2HG and the mRNA level of KRT6, KRT16, and SOX6 were assessed using qRT-PCR. The viability and proliferation of keratinocytes were evaluated using CCK-8 and EdU assays. Cell cycle analysis was performed using flow cytometry. Dual-luciferase reporter assays were applied to test the interaction among MIR181A2HG/miR-223-3p/SOX6. Protein level was detected by Western blotting analysis. RESULTS The findings indicated that psoriasis lesions tissue exhibited lower levels of MIR181A2HG expression compared to normal tissue. The overexpression of MIR181A2HG resulted in the inhibition of HaCaT keratinocytes proliferation. The knockdown of MIR181A2HG promoted cell proliferation. The dual-luciferase reporter assay and rescue experiments provided evidence of the interaction among MIR181A2HG, SOX6, and miR-223-3p. CONCLUSIONS The lncRNA MIR181A2HG functions as a miR-223-3p sponge targeting SOX6 to regulate the proliferation of keratinocytes, which suggested that MIR181A2HG/miR-223-3p/SOX6 might be potential diagnostic and therapeutic targets for psoriasis.
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Affiliation(s)
- Mingzhao Li
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
| | - Mutian Niu
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
| | - Xiaomei Fan
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
| | - Fangru Chen
- Department of Dermatology, Affiliated Hospital of Guilin Medical University, Guilin 541001, Guangxi, P.R. China
| | - Hui Cao
- Department of Dermatology, The Second Affiliated Hospital of Guilin Medical University, Guilin 541199, Guangxi, P.R. China
| | - Qingbo Liu
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
| | - Shaoqin Gan
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
| | - Pengpeng Yue
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
| | - Jintao Gao
- School of Intelligent Medicine and Biotechnology, Guilin Medical University, Guilin 541199, Guangxi, P.R. China
- Key Laboratory of Biochemistry and Molecular Biology, Guilin Medical University, Education Department of Guangxi Zhuang Autonomous Region, Guilin 541199, Guangxi, P.R. China
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Juárez-Vicuña Y, Ruiz-Ojeda D, González-Ramírez J, Flores-Balderas X, Springall R, Sánchez-Muñoz F, Guzmán-Martín CA. LncRNA MALAT1 in Keratinocyte function: A review of recent advances. Noncoding RNA Res 2024; 9:594-601. [PMID: 38532797 PMCID: PMC10963180 DOI: 10.1016/j.ncrna.2024.01.021] [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: 09/27/2023] [Revised: 01/19/2024] [Accepted: 01/30/2024] [Indexed: 03/28/2024] Open
Abstract
Keratinocytes, the principal epidermal cells, play a vital role in maintaining the structural integrity and functionality of the skin. Beyond their protective role, keratinocytes are key contributors to the process of wound healing, as they migrate to injury sites, proliferate, and generate new layers of epidermis, facilitating tissue repair and remodeling. Moreover, keratinocytes actively participate in the skin's immune responses, expressing pattern recognition receptors (PRRs) to detect microbial components and interact with immune cells to influence adaptive immunity. Keratinocytes express a diverse repertoire of signaling pathways, transcription factors, and epigenetic regulators to regulate their growth, differentiation, and response to environmental cues. Among these regulatory elements, long non-coding RNAs (lncRNAs) have emerged as essential players in keratinocyte biology. LncRNAs, including MALAT1, play diverse roles in gene regulation and cellular processes, influencing keratinocyte proliferation, differentiation, migration, and response to environmental stimuli. Dysregulation of specific lncRNAs such as MALAT1 can disrupt keratinocyte homeostasis, leading to impaired differentiation, compromised barrier integrity, and contributing to the pathogenesis of various skin disorders. Understanding the intricate interplay between lncRNAs and keratinocytes offers promising insights into the molecular underpinnings of skin health and disease, with potential implications for targeted therapies and advancements in dermatological research. Hence, our objective is to provide a comprehensive summary of the available knowledge concerning keratinocytes and their intricate relationship with MALAT1.
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Affiliation(s)
- Yaneli Juárez-Vicuña
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | - Dayanara Ruiz-Ojeda
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
- Posgrado en Medicina Interna, Hospital Central Sur de Alta Especialidad de Petróleos Mexicanos, Ciudad de México, Mexico
| | - Javier González-Ramírez
- Facultad de Enfermería, Universidad Autónoma de Baja California, Mexicali, Baja California, Mexico
- Laboratorio de Biología Celular, Unidad de Ciencias de La Salud Campus Mexicali, Universidad Autónoma de Baja California, Mexicali, Baja California, Mexico
| | - Ximena Flores-Balderas
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | - Rashidi Springall
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | - Fausto Sánchez-Muñoz
- Departamento de Inmunología, Instituto Nacional de Cardiología Ignacio Chávez, Ciudad de México, Mexico
| | - Carlos A. Guzmán-Martín
- Doctorado en Ciencias Biológicas y de La Salud, Universidad Autónoma Metropolitana, Ciudad de México, Mexico
- Departamento de Programas de Investigación, Hospital Shriners para Niños México, Ciudad de México, Mexico
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Du X, Shi L, Wang B, Zhang G. WTAP mediated m6A-modified circ_0056856 contributes to the proliferation, migration, and invasion of IL-22-stimulated human keratinocyte by miR-197-3p/CDK1 axis. Arch Dermatol Res 2024; 316:208. [PMID: 38787443 DOI: 10.1007/s00403-024-03097-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 12/02/2023] [Accepted: 04/26/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Psoriasis is a chronic inflammation-associated skin disorder, and interleukin-22 (IL-22) is involved in psoriasis pathogenesis by boosting the proliferation and migration of keratinocytes. Mounting evidence has shown that circRNAs might play an important role in several aspects of psoriasis. This study is designed to explore the role and mechanism of circ_0056856 in regulating the phenotypes of IL-22-induced keratinocytes (HaCaT cells). METHODS Circ_0056856, microRNA-197-3p (miR-197-3p), Cyclin-dependent kinase 1 (CDK1), and Wilms tumor 1-associated protein (WTAP) levels were detected using real-time quantitative polymerase chain reaction (RT-qPCR). Cell viability, proliferation, migration, and invasion were analyzed using 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT), 5-ethynyl-2'-deoxyuridine (EdU), Wound scratch, and Transwell assays. After being predicted by Circinteractome or TargetScan, binding between miR-197-3p and circ_0056856 or CDK1 was verified by a dual-luciferase reporter assay. CDK1 and WTAP protein levels were determined using Western blot. Interaction between WTAP and circ_0056856 was assessed using methylated RNA immunoprecipitation (MeRIP) assay. RESULTS Increased circ_0056856, CDK1, and WTAP were observed in psoriasis patients and IL-22-treated HaCaT cells. Moreover, circ_0056856 knockdown might repress IL-22-induced HaCaT cell proliferation, migration, and invasion in vitro. In mechanism, circ_0056856 might function as a sponge of miR-197-3p to modulate CDK1 expression, and WTAP improved circ_0056856 expression via m6A methylation. CONCLUSION WTAP-guided m6A modified circ_0056856 facilitates IL-22-stimulated HaCaT cell damage through the miR-197-3p/CDK1 axis, which could provide novel insights into psoriasis treatment.
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Affiliation(s)
- Xiaoqing Du
- Department of Dermatology and Venereology, Hebei Medical University, Shijiazhuang City, 050000, Hebei Province, China
- Department of Dermatology, Bethune International Peace Hospital, Shijiazhuang City, 050000, Hebei, China
| | - Liping Shi
- Department of Dermatology, the First Hospital of Hebei Medical University, Shijiazhuang City, 050051, Hebei, China
| | - Bin Wang
- Department of Dermatology, the First Hospital of Hebei Medical University, Shijiazhuang City, 050051, Hebei, China
| | - Guoqiang Zhang
- Department of Dermatology and Venereology, Hebei Medical University, Shijiazhuang City, 050000, Hebei Province, China.
- Department of Dermatology, the First Hospital of Hebei Medical University, Shijiazhuang City, 050051, Hebei, China.
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Zhang Y, Liu H, Niu M, Wang Y, Xu R, Guo Y, Zhang C. Roles of long noncoding RNAs in human inflammatory diseases. Cell Death Discov 2024; 10:235. [PMID: 38750059 PMCID: PMC11096177 DOI: 10.1038/s41420-024-02002-6] [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: 07/06/2023] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/18/2024] Open
Abstract
Chemokines, cytokines, and inflammatory cells mediate the onset and progression of many diseases through the induction of an inflammatory response. LncRNAs have emerged as important regulators of gene expression and signaling pathways. Increasing evidence suggests that lncRNAs are key players in the inflammatory response, making it a potential therapeutic target for various diseases. From the perspective of lncRNAs and inflammatory factors, we summarized the expression level and regulatory mechanisms of lncRNAs in human inflammatory diseases, such as cardiovascular disease, osteoarthritis, sepsis, chronic obstructive pulmonary disease, asthma, acute lung injury, diabetic retinopathy, and Parkinson's disease. We also summarized the functions of lncRNAs in the macrophages polarization and discussed the potential applications of lncRNAs in human inflammatory diseases. Although our understanding of lncRNAs is still in its infancy, these data will provide a theoretical basis for the clinical application of lncRNAs.
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Affiliation(s)
- Yuliang Zhang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Hongliang Liu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Min Niu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Ying Wang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Rong Xu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Yujia Guo
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Chunming Zhang
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Shanxi Province Clinical Medical Research Center for Precision Medicine of Head and Neck Cancer, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
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8
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Ji W, Zhang Q, Sun Z, Cheng Y. LncRNA H19 Inhibits Keratinocyte Cell Proliferation and Migration by Targeting miR-17-5p/RUNX1 Axis in Chronic Wounds. J Burn Care Res 2024; 45:366-372. [PMID: 37742288 DOI: 10.1093/jbcr/irad145] [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: 07/24/2023] [Indexed: 09/26/2023]
Abstract
The migration and proliferation of keratinocytes are critical for re-epithelization during chronic wound healing. Runt-related transcription factor 1 (RUNX1) has been indicated to repress keratinocyte proliferation. Nonetheless, the potential molecular mechanism of RUNX1 in regulating keratinocyte proliferation and migration remains unclear. Cell counting kit-8 and wound-healing assays were implemented for examining keratinocyte viability and migration, respectively. Western blotting and real-time quantitative polymerase chain reaction were utilized for quantifying protein and RNA levels. Luciferase reporter assay was employed for verifying the interaction between RUNX1, miR-17-5p, and long noncoding RNA H19. The results showed that RUNX1 depletion promoted keratinocyte proliferation and migration and repressed extracellular matrix degradation. Mechanistically, H19 upregulated RUNX1 expression by competitively absorbing miR-17-5p. Rescue experiments revealed that overexpressing RUNX1 reversed H19 silencing-mediated effects on the phenotypes of keratinocytes. In conclusion, H19 knockdown promotes keratinocyte proliferation and migration and suppresses extracellular matrix degradation via the miR-17-5p/RUNX1 axis.
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Affiliation(s)
- Wei Ji
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Qian Zhang
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, China
| | - Zhibo Sun
- Department of Orthopaedic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yanyang Cheng
- Department of Paediatrics, Renmin Hospital of Wuhan University, Wuhan 430060, China
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9
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Seiringer P, Hillig C, Schäbitz A, Jargosch M, Pilz AC, Eyerich S, Szegedi A, Sochorová M, Gruber F, Zouboulis CC, Biedermann T, Menden MP, Eyerich K, Törőcsik D. Spatial transcriptomics reveals altered lipid metabolism and inflammation-related gene expression of sebaceous glands in psoriasis and atopic dermatitis. Front Immunol 2024; 15:1334844. [PMID: 38433843 PMCID: PMC10904577 DOI: 10.3389/fimmu.2024.1334844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/22/2024] [Indexed: 03/05/2024] Open
Abstract
Sebaceous glands drive acne, however, their role in other inflammatory skin diseases remains unclear. To shed light on their potential contribution to disease development, we investigated the spatial transcriptome of sebaceous glands in psoriasis and atopic dermatitis patients across lesional and non-lesional human skin samples. Both atopic dermatitis and psoriasis sebaceous glands expressed genes encoding key proteins for lipid metabolism and transport such as ALOX15B, APOC1, FABP7, FADS1/2, FASN, PPARG, and RARRES1. Also, inflammation-related SAA1 was identified as a common spatially variable gene. In atopic dermatitis, genes mainly related to lipid metabolism (e.g. ACAD8, FADS6, or EBP) as well as disease-specific genes, i.e., Th2 inflammation-related lipid-regulating HSD3B1 were differentially expressed. On the contrary, in psoriasis, more inflammation-related spatially variable genes (e.g. SERPINF1, FKBP5, IFIT1/3, DDX58) were identified. Other psoriasis-specific enriched pathways included lipid metabolism (e.g. ACOT4, S1PR3), keratinization (e.g. LCE5A, KRT5/7/16), neutrophil degranulation, and antimicrobial peptides (e.g. LTF, DEFB4A, S100A7-9). In conclusion, our results show that sebaceous glands contribute to skin homeostasis with a cell type-specific lipid metabolism, which is influenced by the inflammatory microenvironment. These findings further support that sebaceous glands are not bystanders in inflammatory skin diseases, but can actively and differentially modulate inflammation in a disease-specific manner.
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Affiliation(s)
- Peter Seiringer
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
- Division of Dermatology and Venereology, Department of Medicine Solna, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Christina Hillig
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Centre for Environmental Health, Munich, Germany
| | - Alexander Schäbitz
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
- Division of Dermatology and Venereology, Department of Medicine Solna, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Manja Jargosch
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
- Zentrum für Allergie und Umwelt (ZAUM) - Center of Allergy and Environment, Technical University of Munich and Helmholtz Zentrum München, Munich, Germany
| | - Anna Caroline Pilz
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
- Department of Dermatology and Venereology, Medical Center, University of Freiburg, Freiburg, Germany
| | - Stefanie Eyerich
- Zentrum für Allergie und Umwelt (ZAUM) - Center of Allergy and Environment, Technical University of Munich and Helmholtz Zentrum München, Munich, Germany
| | - Andrea Szegedi
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Hungarian Research Network (HUN-REN DE), Allergology Research Group, Debrecen, Hungary
| | - Michaela Sochorová
- Division for Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Skin Multimodal Analytical Imaging of Aging and Senescence (SKINMAGINE), Medical University of Vienna, Vienna, Austria
| | - Florian Gruber
- Division for Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Skin Multimodal Analytical Imaging of Aging and Senescence (SKINMAGINE), Medical University of Vienna, Vienna, Austria
| | - Christos C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Staedtisches Klinikum Dessau, Brandenburg Medical School Theodor Fontane and Faculty of Health Sciences Brandenburg, Dessau, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - Michael P Menden
- Institute of Computational Biology, Helmholtz Zentrum München - German Research Centre for Environmental Health, Munich, Germany
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, VIC, Australia
| | - Kilian Eyerich
- Division of Dermatology and Venereology, Department of Medicine Solna, and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Dermatology and Venereology, Medical Center, University of Freiburg, Freiburg, Germany
| | - Daniel Törőcsik
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Hungarian Research Network (HUN-REN DE), Allergology Research Group, Debrecen, Hungary
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Masuda-Kuroki K, Alimohammadi S, Di Nardo A. The Role of Sphingolipids and Sphingosine-1-phosphate-Sphingosine-1-phosphate-receptor Signaling in Psoriasis. Cells 2023; 12:2352. [PMID: 37830566 PMCID: PMC10571972 DOI: 10.3390/cells12192352] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/14/2023] Open
Abstract
Psoriasis is a long-lasting skin condition characterized by redness and thick silver scales on the skin's surface. It involves various skin cells, including keratinocytes, dendritic cells, T lymphocytes, and neutrophils. The treatments for psoriasis range from topical to systemic therapies, but they only alleviate the symptoms and do not provide a fundamental cure. Moreover, systemic treatments have the disadvantage of suppressing the entire body's immune system. Therefore, a new treatment strategy with minimal impact on the immune system is required. Recent studies have shown that sphingolipid metabolites, particularly ceramide and sphingosine-1-phosphate (S1P), play a significant role in psoriasis. Specific S1P-S1P-receptor (S1PR) signaling pathways have been identified as crucial to psoriasis inflammation. Based on these findings, S1PR modulators have been investigated and have been found to improve psoriasis inflammation. This review will discuss the metabolic pathways of sphingolipids, the individual functions of these metabolites, and their potential as a new therapeutic approach to psoriasis.
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Affiliation(s)
| | | | - Anna Di Nardo
- Department of Dermatology, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (K.M.-K.); (S.A.)
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11
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Zhang B, Wu S. Downregulation of circ_0024028 inhibits IL-22-induced keratinocyte proliferation and migration by miR-486-3p/AKT3 axis. Arch Dermatol Res 2023; 315:2079-2090. [PMID: 36943433 DOI: 10.1007/s00403-023-02597-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/08/2022] [Accepted: 02/28/2023] [Indexed: 03/23/2023]
Abstract
Circular RNA (circRNA) has been confirmed to participate in psoriasis process, but the role of circ_0024028 in psoriasis development is still unclear. Interleukin 22 (IL-22)-induced keratinocytes (HaCaT) were used to construct psoriasis cell models in vitro. The expression of circ_0024028, microRNA (miR)-486-3p and AKT serine/threonine kinase 3 (AKT3) was analyzed by quantitative real-time PCR. Cell function was assessed by cell counting kit 8 assay, EdU assay, transwell assay, and wound healing assay. Protein expression was examined using western blot analysis. RNA interaction was confirmed by dual-luciferase reporter assay and RIP assay. Exosomes were isolated from cell culture medium using ultracentrifugation and examined by transmission electron microscopy and nanoparticle tracking analysis. Circ_0024028 was highly expressed in psoriasis lesions and IL-22-induced HaCaT cells, and its silencing could inhibit IL-22-induced HaCaT cell proliferation and migration. MiR-486-3p could be sponged by circ_0024028, and its inhibitor restored the functions of circ_0024028 knockdown on IL-22-induced HaCaT cell proliferation and migration. AKT3 was targeted by miR-486-3p, and its overexpression reversed the inhibitory effect of miR-486-3p on IL-22-induced HaCaT cell proliferation and migration. AKT3 expression was positively regulated by circ_0024028, and circ_0024028/miR-486-3p/AKT3 axis could regulate the activity of AKT/mTOR pathway. Additionally, exosomes mediated the transfer of circ_0024028 in cells. Circ_0024028 might be a potential target for psoriasis treatment, which knockdown repressed IL-22-induced keratinocytes proliferation and migration through miR-486-3p/AKT3 pathway.
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Affiliation(s)
- Bihong Zhang
- Department of Emergency, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Songjiang Wu
- Department of Dermatology, The First Affiliated Hospital, Hengyang Medical School, University of South China, No. 69, Chuanshan Road, Hengyang, 421001, Hunan, China.
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12
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Masuda-Kuroki K, Alimohammadi S, Di Nardo A. S. epidermidis Rescues Allergic Contact Dermatitis in Sphingosine 1-Phosphate Receptor 2-Deficient Skin. Int J Mol Sci 2023; 24:13190. [PMID: 37685997 PMCID: PMC10487941 DOI: 10.3390/ijms241713190] [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: 07/31/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Recent studies have identified a subtype of the S1P-receptor family called sphingosine-1-phosphate receptor 2 (S1PR2), which plays a crucial role in maintaining the skin barrier. It has been observed that S1PR2 and Staphylococcus epidermidis (S. epidermidis) work together to regulate the skin barrier. However, the interaction between these two factors is still unclear. To investigate this, a study was conducted on healthy skin and allergic contact dermatitis (ACD) using 3,4-Dibutoxy-3-cyclobutene-1,2-dione (SADBE) on the ears of S1pr2fl/fl and S1pr2fl/flK14-Cre mice and using 1 × 106 CFU of S. epidermidis to examine its effects on the skin. The results showed that in S. epidermidis-conditioned ACD, the ear thickness of S1pr2fl/flK14-Cre mice was lower than that of S1pr2fl/fl mice, and mRNA expressions of Il-1β and Cxcl2 of S1pr2fl/flK14-Cre mice were lower than that of S1pr2fl/fl mice in ACD with S. epidermidis. Furthermore, the gene expression of Claudin-1 and Occludin in S1pr2fl/flK14-Cre mice was higher than that of S1pr2fl/fl mice in ACD with S. epidermidis. The study concludes that S. epidermidis colonization improves the skin barrier and prevents ACD even when S1P signaling malfunctions.
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Affiliation(s)
| | | | - Anna Di Nardo
- Department of Dermatology, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; (K.M.-K.); (S.A.)
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13
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El Sobky SA, Aboud NK, El Assaly NM, Fawzy IO, El-Ekiaby N, Abdelaziz AI. Regulation of lipid droplet (LD) formation in hepatocytes via regulation of SREBP1c by non-coding RNAs. Front Med (Lausanne) 2022; 9:903856. [PMID: 36203751 PMCID: PMC9530594 DOI: 10.3389/fmed.2022.903856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 08/25/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Increased de novo lipogenesis (DNL) is one of the key factors contributing to fat accumulation and non-alcoholic fatty liver disease (NAFLD). Among the critical transcription factors (TFs) regulating DNL is mTOR and its downstream lipogenic TF, SREBP1c. In recent years, it has been established that non-coding RNAs (ncRNAs) play role in both biological processes and disease pathogenesis. Our group has previously characterized microRNAs that can target and regulate the expression of both mTOR and SREBP1c. Accordingly, this study aimed to broaden our understanding of the role of ncRNAs in regulating the mTOR/SREBP1c axis to elucidate the role of the non-coding transcriptome in DNL and lipid droplet (LD) formation. Hence, short ncRNA, miR-615-5p, and long non-coding RNA (lncRNA), H19, were chosen as they were previously proven to target mTOR by our group and in the published literature, respectively. Methodology Huh-7 cells were treated with 800 μM oleic acid (OA) to promote LD formation. Transfection of miR-615-5p mimics or H19 over-expression vectors was performed, followed by the measurement of their downstream targets, mTOR and SREBP, on the mRNA level by quantitative real-time PCR (qRT-PCR), and on the protein level by Western blot. To determine the functional impact of miR-615-5p and H19 on LD formation and triglyceride (TG) accumulation, post-transfection LDs were stained, imaged, and characterized, and TGs were extracted and quantified. Results miR-615-5p was able to reduce mTOR and SREBP1c significantly on both the mRNA and protein levels compared to control cells, while H19 caused a reduction of both targets on the protein level only. Both miR-615-5p and H19 were able to significantly reduce the LD count and total area, as well as TG levels compared to control cells. Conclusion To conclude, this study shows, for the first time, the impact of miR-615-5p and H19 on the mTOR/SREBP1c axis, and thus, their functional impact on LDs and TG accumulation. These findings might pave the way for using ncRNAs as potential therapeutic targets in the management of fatty liver.
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Affiliation(s)
| | | | - Nihal M. El Assaly
- Clinical Chemistry Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Injie O. Fawzy
- School of Medicine, Newgiza University (NGU), Giza, Egypt
| | - Nada El-Ekiaby
- School of Medicine, Newgiza University (NGU), Giza, Egypt
| | - Ahmed I. Abdelaziz
- School of Medicine, Newgiza University (NGU), Giza, Egypt
- *Correspondence: Ahmed I. Abdelaziz
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Masuda-Kuroki K, Di Nardo A. Sphingosine 1-Phosphate Signaling at the Skin Barrier Interface. BIOLOGY 2022; 11:biology11060809. [PMID: 35741330 PMCID: PMC9219813 DOI: 10.3390/biology11060809] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 12/14/2022]
Abstract
Sphingosine 1-phosphate (S1P) is a product of membrane sphingolipid metabolism. S1P is secreted and acts via G-protein-coupled receptors, S1PR1-5, and is involved in diverse cellular functions, including cell proliferation, immune suppression, and cardiovascular functions. Recent studies have shown that the effects of S1P signaling are extended further by coupling the different S1P receptors and their respective downstream signaling pathways. Our group has recently reported that S1P inhibits cell proliferation and induces differentiation in human keratinocytes. There is a growing understanding of the connection between S1P signaling, skin barrier function, and skin diseases. For example, the activation of S1PR1 and S1PR2 during bacterial invasion regulates the synthesis of inflammatory cytokines in human keratinocytes. Moreover, S1P-S1PR2 signaling is involved in the production of inflammatory cytokines and can be triggered by epidermal mechanical stress and bacterial invasion. This review highlights how S1P affects human keratinocyte proliferation, differentiation, immunoreaction, and mast cell immune response, in addition to its effects on the skin barrier interface. Finally, studies targeting S1P-S1PR signaling involved in inflammatory skin diseases are also presented.
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