Evidence map›Paper›PMID 30305668›Full record

ArticleScientific reports2018

MiR-494-3p regulates mitochondrial biogenesis and thermogenesis through PGC1-α signalling in beige adipocytes.

Mengistu Lemecha, Katsutaro Morino, Takeshi Imamura, Hirotaka Iwasaki, Natsuko Ohashi, Shogo Ida, Daisuke Sato, Osamu Sekine, Satoshi Ugi, Hiroshi Maegawa

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. New Mediators in the Crosstalk between Different Adipose Tissues.International journal of molecular sciences · 2024
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Adipose Kiss1 controls aerobic exercise-related adaptive responses in adipose tissue energy homeostasis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  11. Article
  12. Review
  13. Pulling the trigger: Noncoding RNAs in white adipose tissue browning.Reviews in endocrine & metabolic disorders · 2024
    Review
  14. Expression Analysis of circRNAs in Human Adipogenesis.Diabetes, metabolic syndrome and obesity : targets and therapy · 2024
    Article
  15. Article
  16. Review
  17. Review
  18. American journal of physiology. Endocrinology and metabolism · 2023
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Mengistu LemechaDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Katsutaro MorinoDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan. morino@belle.shiga-med.ac.jp.
Takeshi ImamuraDivision of Molecular Pharmacology, Faculty of Medicine, Tottori University, Yonago, Japan.
Hirotaka IwasakiDivision of Pharmacology, Shiga University of Medical Science, Otsu, Japan.
Natsuko OhashiDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Shogo IdaDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Daisuke SatoDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Osamu SekineDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Satoshi UgiDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Hiroshi MaegawaDivision of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Otsu, 520-2192, Japan.
Shiga University of Medical Science · JPTottori University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondria are critical in heat generation in brown and beige adipocytes. Mitochondrial number and function are regulated in response to external stimuli, such as cold exposure and β3 adrenergic receptor agonist. However, the molecular mechanisms regulating mitochondrial biogenesis during browning, especially by microRNAs, remain unknown. We investigated the role of miR-494-3p in mitochondrial biogenesis during adipogenesis and browning. Intermittent mild cold exposure of mice induced PPARγ coactivator1-α (PGC1-α) and mitochondrial TFAM, PDH, and ANT1/2 expression along with uncoupling protein-1 (Ucp1) in inguinal white adipose tissue (iWAT). miR-494-3p levels were significantly downregulated in iWAT upon cold exposure (p < 0.05). miR-494-3p overexpression substantially reduced PGC1-α expression and its downstream targets TFAM, PDH and MTCO1 in 3T3-L1 white and beige adipocytes (p < 0.05). miR-494-3p inhibition in 3T3-L1 white adipocytes resulted in increased PDH (p < 0.05). PGC1-α, TFAM and Ucp1 mRNA levels were robustly downregulated by miR-494-3p overexpression in 3T3-L1 beige adipocytes, along with strongly decreased oxygen consumption rate. PGC1-α and Ucp1 proteins were downregulated by miR-494-3p in primary beige cells (p < 0.05). Luciferase assays confirmed PGC1-α as a direct gene target of miR-494-3p. Our findings demonstrate that decreased miR-494-3p expression during browning regulates mitochondrial biogenesis and thermogenesis through PGC1-α.

Indexed as

Organelle BiogenesisSignal TransductionThermogenesis3T3-L1 Cells3' Untranslated RegionsAdipocytes, BeigeAnimalsGene ExpressionGenes, ReporterMaleMiceMicroRNAsMitochondriaModels, BiologicalOxygen ConsumptionPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha3' Untranslated RegionsMicroRNAsMirn494 microRNA, mousePeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPpargc1a protein, mouseRNA, Messenger

Identifiers

PMID30305668
PMCPMC6180067
OpenAlexW2894557414

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.