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Circulating Exosoma...
Circulating Exosomal miR-20b-5p is Elevated in Type 2 Diabetes and Could Impair Insulin Action in Human Skeletal Muscle.
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- Katayama, Mutsumi (författare)
- Karolinska Institutet
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- Wiklander, Oscar P B (författare)
- Karolinska Institutet
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Fritz, Tomas (författare)
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- Caidahl, Kenneth, 1949 (författare)
- Karolinska Institutet,Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine
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- Andaloussi, Samir El- (författare)
- Karolinska Institutet
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- Zierath, Juleen R (författare)
- Karolinska Institutet
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- Krook, Anna (författare)
- Karolinska Institutet
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(creator_code:org_t)
- 2018-12-14
- 2019
- Engelska.
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Ingår i: Diabetes. - : American Diabetes Association. - 1939-327X .- 0012-1797. ; 68:3, s. 515-526
- Relaterad länk:
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https://diabetes.dia...
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https://gup.ub.gu.se...
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https://doi.org/10.2...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- MicroRNAs (miRNAs) are noncoding RNAs representing an important class of gene expression modulators. Extracellular circulating miRNAs are both candidate biomarkers for disease pathogenesis and mediators of cell-to-cell communication. We examined the miRNA expression profile of total serum and serum derived exosome-enriched extracellular vesicles in people with normal glucose tolerance or type 2 diabetes. In contrast to total serum miRNA, which did not reveal any differences in miRNA expression, we identified differentially abundant miRNAs in type 2 diabetes patients using miRNA expression profiles of exosome RNA (exoRNA). To validate the role of these differentially abundant miRNAs on glucose metabolism, we transfected miR-20b-5p, a highly abundant exoRNA in type 2 diabetic patients, into primary human skeletal muscle cells. miR-20b-5p overexpression increased basal glycogen synthesis in human skeletal muscle cells. We identified AKTIP and STAT3 as miR-20b-5p targets. miR-20b-5p overexpression reduced AKTIP abundance and insulin-stimulated glycogen accumulation. In conclusion, exosome derived extracellular miR-20b-5p is a circulating biomarker associated with type 2 diabetes, which plays an intracellular role in modulating insulin-stimulated glucose metabolism via AKT signaling.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Klinisk laboratoriemedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Clinical Laboratory Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Endokrinologi och diabetes (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Endocrinology and Diabetes (hsv//eng)
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