Obesity-Associated miR-199a/214 Cluster Inhibits Adipose Browning via PRDM16-PGC-1α Transcriptional Network
© 2018 by the American Diabetes Association..
miRNAs are important regulators of differentiation, development, and function of brown and beige fat cells. In this study, we identify the role of the miR-199a/214 cluster in the regulation of brown and beige adipocyte development and thermogenesis in vitro and in vivo. We show that expression of the miR-199a/214 cluster is dramatically decreased during brown and beige adipocyte differentiation and in response to cold exposure or β-adrenergic receptor activation. The cluster levels are significantly upregulated in the adipose tissues of obese mice and human subjects. Overexpression of the miR-199a/214 cluster suppresses brown adipocyte differentiation and inhibits thermogenic gene expression and mitochondrial respiration, whereas knockdown of the cluster increases thermogenic gene expression and mitochondrial function in beige adipocytes. In addition, inhibition of the miR-199a/214 cluster promotes beiging effects in vivo. We further show that miR-199a/214 suppresses brown adipocyte differentiation and beige fat development by directly targeting PRDM16 and peroxisome PGC-1α, two key transcriptional regulators of adipose browning. Together, these observations reveal that the miR-199a/214 cluster is a key negative regulator of brown and beige fat development and thermogenesis.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:67 |
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| Enthalten in: |
Diabetes - 67(2018), 12 vom: 02. Dez., Seite 2585-2600 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
He, Linyun [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 08.02.2019 Date Revised 15.02.2019 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.2337/db18-0626 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a © 2018 by the American Diabetes Association. | ||
| 520 | |a miRNAs are important regulators of differentiation, development, and function of brown and beige fat cells. In this study, we identify the role of the miR-199a/214 cluster in the regulation of brown and beige adipocyte development and thermogenesis in vitro and in vivo. We show that expression of the miR-199a/214 cluster is dramatically decreased during brown and beige adipocyte differentiation and in response to cold exposure or β-adrenergic receptor activation. The cluster levels are significantly upregulated in the adipose tissues of obese mice and human subjects. Overexpression of the miR-199a/214 cluster suppresses brown adipocyte differentiation and inhibits thermogenic gene expression and mitochondrial respiration, whereas knockdown of the cluster increases thermogenic gene expression and mitochondrial function in beige adipocytes. In addition, inhibition of the miR-199a/214 cluster promotes beiging effects in vivo. We further show that miR-199a/214 suppresses brown adipocyte differentiation and beige fat development by directly targeting PRDM16 and peroxisome PGC-1α, two key transcriptional regulators of adipose browning. Together, these observations reveal that the miR-199a/214 cluster is a key negative regulator of brown and beige fat development and thermogenesis | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 7 | |a MicroRNAs |2 NLM | |
| 650 | 7 | |a Mirn199 microRNA, mouse |2 NLM | |
| 650 | 7 | |a Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha |2 NLM | |
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| 700 | 1 | |a Tang, Mowei |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Ting |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Hailan |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Guangdi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Yalun |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Zhiguang |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Fang |e verfasserin |4 aut | |
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