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Zhou S, Guo L, Cui X, Zhang X, Yang Y, Zhang M, Zhang P. Inhibition of Let-7b-5p maturation by LIN28A promotes thermal skin damage repair after burn injury. Cell Signal 2024; 120:111217. [PMID: 38729326 DOI: 10.1016/j.cellsig.2024.111217] [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: 12/15/2023] [Revised: 04/25/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024]
Abstract
Burn injuries, especially severe ones, result in direct and indirect thermal damage to skin tissues, with a complex and slow wound healing process. Improper treatment can induce sustained inflammatory responses, causing systemic damage. Lin28A, a highly conserved RNA binding protein, was found to exert a significant effect on cell proliferation and wound repair. Lin28A exerts the functions through inhibiting the maturation of the let-7 family miRNAs. Herein, the roles of Lin28A and let-7b in thermal injury repair were investigated using a mouse thermal injury model and a human skin fibroblast (HSF) model for thermal injuries. Lin28A could inhibit the maturation of let-7b, thus participating in skin repair after burns. In the animal model, Lin28A was highly expressed after thermal injury. In the HSF model for thermal injuries, downregulation of Lin28A inhibited the proliferation, migration, and extracellular matrix (ECM) generation of fibroblasts. When let-7b was knocked down in HSFs, the impacts on fibroblast functions caused by downregulation of Lin28A were partially reversed. Moreover, let-7b overexpression might significantly attenuate the promotive effects of Lin28A upon thermal injury repair. Finally, AKT2 and IGF1R were the let-7b target genes within cells. These findings reveal that Lin28A might promote thermal injury repair in burn-injured skin by inhibiting the maturation of let-7b and improving HSF viability and functions, thus illustrating the critical effect of let-7b on burn wound healing and providing new therapeutic targets and strategies for burn treatment.
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Affiliation(s)
- Sitou Zhou
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Le Guo
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
| | - Xu Cui
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xiangjun Zhang
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yan Yang
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Minghua Zhang
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Pihong Zhang
- Department of Burns and Reconstructive Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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Han S, Fang J, Yu L, Li B, Hu Y, Chen R, Li C, Zhao C, Li J, Wang Y, Gao Y, Tan H, Jin Q. Serum‑derived exosomal hsa‑let‑7b‑5p as a biomarker for predicting the severity of coronary stenosis in patients with coronary heart disease and hyperglycemia. Mol Med Rep 2023; 28:203. [PMID: 37711034 PMCID: PMC10539999 DOI: 10.3892/mmr.2023.13090] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023] Open
Abstract
Exosomal microRNAs (miRNAs/miRs) are potential biomarkers for the diagnosis and treatment of cardiovascular disease, and hyperglycemia serves an important role in the development of atherosclerosis. The present study aimed to investigate the expression profile of serum‑derived exosomal miRNAs in coronary heart disease (CHD) with hyperglycemia, and to identify effective biomarkers for predicting coronary artery lesions. Serum samples were collected from eight patients with CHD and hyperglycemia and eight patients with CHD and normoglycemia, exosomes were isolated and differentially expressed miRNAs (DEMIs) were filtered using a human miRNA microarray. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed using standard enrichment computational methods for the target genes of DEMIs. Receiver operating characteristic (ROC) curve analysis was applied to evaluate the values of the selected DEMIs in predicting the severity of coronary stenosis. A total of 10 DEMIs, including four upregulated miRNAs (hsa‑let‑7b‑5p, hsa‑miR‑4313, hsa‑miR‑4665‑3p and hsa‑miR‑940) and six downregulated miRNAs (hsa‑miR‑4459, hsa‑miR‑4687‑3p, hsa‑miR‑6087, hsa‑miR‑6089, hsa‑miR‑6740‑5p and hsa‑miR‑6800‑5p), were screened in patients with CHD and hyperglycemia. GO analysis showed that the 'cellular process', 'single‑organism process' and 'biological regulation' were significantly enriched. KEGG pathway analysis revealed that the 'mTOR signaling pathway', 'FoxO signaling pathway' and 'neurotrophin signaling pathway' were significantly enriched. Among these DEMIs, only hsa‑let‑7b‑5p expression was positively correlated with both hemoglobin A1C levels and Synergy between Percutaneous Coronary Intervention with Taxus and Cardiac Surgery score. ROC curves showed that hsa‑let‑7b‑5p could serve as an effective biomarker for differentiating the severity of coronary stenosis. In conclusion, the present study demonstrated that serum‑derived exosomal hsa‑let‑7b‑5p is upregulated in patients with CHD and hyperglycemia, and may serve as a noninvasive biomarker for the severity of coronary stenosis.
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Affiliation(s)
- Shufang Han
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Jie Fang
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Lili Yu
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Bin Li
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Yuhong Hu
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Ruimin Chen
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Changyong Li
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Chuanxu Zhao
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Jiaying Li
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Yinan Wang
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Yuqi Gao
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Hong Tan
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Qun Jin
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
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Yu Y, Li X, Han S, Zhang J, Wang J, Chai J. miR-181c, a potential mediator for acute kidney injury in a burn rat model with following sepsis. Eur J Trauma Emerg Surg 2022; 49:1035-1045. [PMID: 36227355 DOI: 10.1007/s00068-022-02124-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/27/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND The miRNA profile is changed after burn or sepsis and is involved in regulating inflammatory reactions. However, the function and molecular mechanism of miRNAs in regulating burn sepsis-induced acute kidney injury (AKI) are still unclear. METHODS In this study, animal and cell sepsis models were established after burned rats were injected with lipopolysaccharide (LPS) or NRK-52E cells treated with LPS, respectively. Cytokine expression, inflammatory cell infiltration, serum creatinine (Scr) and kidney injury molecule-1 (KIM-1) levels were analysed after the indicated treatments. RESULTS Burn sepsis increased the expression of inflammatory factors (TNF-α and IL-1β) and chemokines (MIP-1α, MIP-2 and MCP-1). Moreover, burn sepsis promoted macrophage and neutrophil infiltration into the kidney and upregulated the levels of Scr and KIM-1 in the kidney and urine. Ectopic expression of miR-181c significantly reduced LPS-induced TLR4 protein expression, suppressed KIM-1 mRNA levels and subsequently inhibited the activation of inflammatory genes (TNF-α and IL-1β) and chemokine genes (MIP-1α, MIP-2 and MCP-1). CONCLUSIONS Our results demonstrated that miR-181c could suppress TLR4 expression, reduce inflammatory factor and chemokine secretion, mitigate inflammatory cell infiltration into the kidney and downregulate KIM-1 expression, which might ultimately attenuate burn sepsis-induced AKI.
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Affiliation(s)
- Yonghui Yu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Xiao Li
- The Fourth Medical Center of PLA General Hospital, 51 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Shaofang Han
- The Fourth Medical Center of PLA General Hospital, 51 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Jingjie Zhang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Haidian District, Beijing, 100048, China.
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Key Laboratory of Special Food Supervision Technology for State Market Regulation, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, 11 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Jiake Chai
- The Fourth Medical Center of PLA General Hospital, 51 Fucheng Road, Haidian District, Beijing, 100048, China.
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Willis ML, Mahung C, Wallet SM, Barnett A, Cairns BA, Coleman LG, Maile R. Plasma extracellular vesicles released after severe burn injury modulate macrophage phenotype and function. J Leukoc Biol 2021; 111:33-49. [PMID: 34342045 DOI: 10.1002/jlb.3mia0321-150rr] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Extracellular vesicles (EVs) have emerged as key regulators of immune function across multiple diseases. Severe burn injury is a devastating trauma with significant immune dysfunction that results in an ∼12% mortality rate due to sepsis-induced organ failure, pneumonia, and other infections. Severe burn causes a biphasic immune response: an early (0-72 h) hyper-inflammatory state, with release of damage-associated molecular pattern molecules, such as high-mobility group protein 1 (HMGB1), and proinflammatory cytokines (e.g., IL-1β), followed by an immunosuppressive state (1-2+ wk post injury), associated with increased susceptibility to life-threatening infections. We have reported that early after severe burn injury HMGB1 and IL-1β are enriched in plasma EVs. Here we tested the impact of EVs isolated after burn injury on phenotypic and functional consequences in vivo and in vitro using adoptive transfers of EV. EVs isolated early from mice that underwent a 20% total body surface area burn injury (burn EVs) caused similar hallmark cytokine responses in naïve mice to those seen in burned mice. Burn EVs transferred to RAW264.7 macrophages caused similar functional (i.e., cytokine secretion) and immune gene expression changes seen with their associated phase of post-burn immune dysfunction. Burn EVs isolated early (24 h) induced MCP-1, IL-12p70, and IFNγ, whereas EVs isolated later blunted RAW proinflammatory responses to bacterial endotoxin (LPS). We also describe significantly increased HMGB1 cargo in burn EVs purified days 1 to 7 after injury. Thus, burn EVs cause immune outcomes in naïve mice and macrophages similar to findings after severe burn injury, suggesting EVs promote post-burn immune dysfunction.
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Affiliation(s)
- Micah L Willis
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Cressida Mahung
- North Carolina Jaycee Burn Center Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Shannon M Wallet
- Adams School of Dentistry, Division of Oral and Craniofacial Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Alexandra Barnett
- Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Bruce A Cairns
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,North Carolina Jaycee Burn Center Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Leon G Coleman
- Department of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Robert Maile
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,North Carolina Jaycee Burn Center Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Murthy V, Tebaldi T, Yoshida T, Erdin S, Calzonetti T, Vijayvargia R, Tripathi T, Kerschbamer E, Seong IS, Quattrone A, Talkowski ME, Gusella JF, Georgopoulos K, MacDonald ME, Biagioli M. Hypomorphic mutation of the mouse Huntington's disease gene orthologue. PLoS Genet 2019; 15:e1007765. [PMID: 30897080 PMCID: PMC6445486 DOI: 10.1371/journal.pgen.1007765] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 04/02/2019] [Accepted: 02/07/2019] [Indexed: 01/08/2023] Open
Abstract
Rare individuals with inactivating mutations in the Huntington's disease gene (HTT) exhibit variable abnormalities that imply essential HTT roles during organ development. Here we report phenotypes produced when increasingly severe hypomorphic mutations in the murine HTT orthologue Htt, (HdhneoQ20, HdhneoQ50, HdhneoQ111), were placed over a null allele (Hdhex4/5). The most severe hypomorphic allele failed to rescue null lethality at gastrulation, while the intermediate, though still severe, alleles yielded recessive perinatal lethality and a variety of fetal abnormalities affecting body size, skin, skeletal and ear formation, and transient defects in hematopoiesis. Comparative molecular analysis of wild-type and Htt-null retinoic acid-differentiated cells revealed gene network dysregulation associated with organ development that nominate polycomb repressive complexes and miRNAs as molecular mediators. Together these findings demonstrate that Htt is required both pre- and post-gastrulation to support normal development.
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Affiliation(s)
- Vidya Murthy
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
| | - Toma Tebaldi
- Laboratory of Translational Genomics, Centre for Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Toshimi Yoshida
- Cutaneous Biology Research Center (CBRC), Mass General Hospital, Harvard Medical School, Charlestown, MA, United States of America
| | - Serkan Erdin
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
| | - Teresa Calzonetti
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- Frederick Community College, Frederick MD, United States of America
| | - Ravi Vijayvargia
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
| | - Takshashila Tripathi
- NeuroEpigenetics Laboratory, Centre for Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Emanuela Kerschbamer
- NeuroEpigenetics Laboratory, Centre for Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Ihn Sik Seong
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
| | - Alessandro Quattrone
- Laboratory of Translational Genomics, Centre for Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Michael E. Talkowski
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- Broad Institute of Harvard and MIT, Cambridge, MA, United States of America
- Department of Neurology, Harvard Medical School, Boston, MA, United States of America
| | - James F. Gusella
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- Broad Institute of Harvard and MIT, Cambridge, MA, United States of America
- Department of Genetics, Harvard Medical School, Boston, MA, United States of America
| | - Katia Georgopoulos
- Cutaneous Biology Research Center (CBRC), Mass General Hospital, Harvard Medical School, Charlestown, MA, United States of America
| | - Marcy E. MacDonald
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- Broad Institute of Harvard and MIT, Cambridge, MA, United States of America
- Department of Neurology, Harvard Medical School, Boston, MA, United States of America
| | - Marta Biagioli
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, United States of America
- NeuroEpigenetics Laboratory, Centre for Integrative Biology (CIBIO), University of Trento, Trento, Italy
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