Irisin delays the onset of type 1 diabetes in NOD mice by enhancing intestinal barrier
Copyright © 2024 Elsevier B.V. All rights reserved..
Type 1 diabetes (T1D), a complex autoimmune disease, is intricately linked to the gut's epithelial barrier function. Emerging evidence emphasizes the role of irisin, an exercise-related hormone, in preserving intestinal integrity. This study investigates whether irisin could delay T1D onset by enhancing the colon intestinal barrier. Impaired colon intestinal barriers were observed in newly diagnosed T1D patients and non-obese diabetic (NOD) mice, worsening with age and accompanied by islet inflammation. Using an LPS-induced colonic inflammation model, a dose-dependent impact of LPS on colon cells irisin expression, secretion, and barrier function was revealed. Exogenous irisin demonstrated remarkable effects, mitigating islet insulitis, enhancing energy expenditure, and alleviating autoimmune symptoms by reducing colon intestinal permeability. Single-cell RNA sequencing (scRNA-seq) highlighted irisin's positive impact on colon epithelial cell clusters, effectively restoring the intestinal barrier. Irisin also selectively modulated bacterial composition, averting potential bacterial translocation. Mechanistically, irisin enhanced colon intestinal barrier tight junction proteins through the AMPK/PI3K/AKT pathway, with FAM120A playing a crucial role. Irisin upregulated MUC3 expression, a protector against damage and inflammation. Harnessing irisin's exercise-mimicking properties suggests therapeutic potential in clinical settings for preventing T1D progression, offering valuable insights into fortifying the colon's intestinal barrier and managing autoimmune conditions associated with T1DM.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:265 |
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| Enthalten in: |
International journal of biological macromolecules - 265(2024), Pt 1 vom: 15. Apr., Seite 130857 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sun, Yujing [VerfasserIn] |
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| Links: |
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| Themen: |
Colon barrier function |
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| Anmerkungen: |
Date Completed 17.04.2024 Date Revised 17.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ijbiomac.2024.130857 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Type 1 diabetes (T1D), a complex autoimmune disease, is intricately linked to the gut's epithelial barrier function. Emerging evidence emphasizes the role of irisin, an exercise-related hormone, in preserving intestinal integrity. This study investigates whether irisin could delay T1D onset by enhancing the colon intestinal barrier. Impaired colon intestinal barriers were observed in newly diagnosed T1D patients and non-obese diabetic (NOD) mice, worsening with age and accompanied by islet inflammation. Using an LPS-induced colonic inflammation model, a dose-dependent impact of LPS on colon cells irisin expression, secretion, and barrier function was revealed. Exogenous irisin demonstrated remarkable effects, mitigating islet insulitis, enhancing energy expenditure, and alleviating autoimmune symptoms by reducing colon intestinal permeability. Single-cell RNA sequencing (scRNA-seq) highlighted irisin's positive impact on colon epithelial cell clusters, effectively restoring the intestinal barrier. Irisin also selectively modulated bacterial composition, averting potential bacterial translocation. Mechanistically, irisin enhanced colon intestinal barrier tight junction proteins through the AMPK/PI3K/AKT pathway, with FAM120A playing a crucial role. Irisin upregulated MUC3 expression, a protector against damage and inflammation. Harnessing irisin's exercise-mimicking properties suggests therapeutic potential in clinical settings for preventing T1D progression, offering valuable insights into fortifying the colon's intestinal barrier and managing autoimmune conditions associated with T1DM | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Colon barrier function | |
| 650 | 4 | |a Intestinal microbiota | |
| 650 | 4 | |a Irisin | |
| 650 | 4 | |a Single-cell RNA sequencing (scRNAseq) | |
| 650 | 4 | |a Type 1 diabetes | |
| 650 | 7 | |a Fibronectins |2 NLM | |
| 650 | 7 | |a Lipopolysaccharides |2 NLM | |
| 650 | 7 | |a Phosphatidylinositol 3-Kinases |2 NLM | |
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| 700 | 1 | |a Wang, Yilin |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Ziang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Fuhua |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Ren, Tongxin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lina |e verfasserin |4 aut | |
| 700 | 1 | |a Qiao, Qincheng |e verfasserin |4 aut | |
| 700 | 1 | |a Shen, Mengyang |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Juncheng |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Youchen |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Peng |e verfasserin |4 aut | |
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