Cited by 36MicroRNA in disease regulationMuscle Physiology and DisordersGenomics and Chromatin Dynamics

Identification of regulatory elements directing miR-23a–miR-27a–miR-24-2 transcriptional regulation in response to muscle hypertrophic stimuli

Hernandez-Torres, Francisco, Aranega, Amelia E., Franco, Diego·2014·Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms

Abstract

MiRNAs are small non-coding RNAs that significantly regulate the translation of protein coding genes in higher organisms. MicroRNAs are involved in almost every biological process, including early development, lineage commitment, growth and differentiation, cell death, and metabolic control. Misregulation of miRNAs belonging to the intergenic miR-23a-miR-27a-miR-24-2 cluster has been recently associated to cardiac and skeletal muscle diseases, and they are up-regulated in hypertrophic cardiomyopathy and skeletal muscle atrophy. Despite these facts, the basal transcriptional regulation of miR-23a/miR-27-a/miR-24-2 cluster and how it is altered under pathological conditions remain unclear. In this study, we identified and functionally characterized conserved upstream and downstream regulatory sequences from the miR-23a-miR-27a-miR-24-2 locus that are implicated on its transcriptional control. Our data demonstrate that Srf plays a pivotal role in modulating miR-23a-miR-27a-miR-24-2 cluster proximal promoter activity. Importantly, pro-hypertrophic signalling pathways such as those driven by angiotensin II and norepinephrine also regulate miR-23a-miR-27a-miR-24-2 cluster proximal promoter activity. Taking together, our results provide new insights into the regulatory networks driving miR-23a-miR-27a-miR-24-2 cluster expression in cardiac and skeletal muscles.

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Crossref · 10.1016/j.bbagrm.2014.07.009

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  • Angiotensin II and norepinephrine in pro-hypertrophic signaling pathways can upregulate miR-23-24-27 cluster expression levels in hypertrophic cardiomyopathy and skeletal muscle atrophy.

    “Among other upstream regulatory signals, angiotensin II and norepinephrine in the pro-hypertrophic signaling pathways can also regulate the proximal promoter of miRNA. Together, they can upregulate miR-23-24-27 cluster expression levels in hypertrophic cardiomyopathy and skeletal muscle atrophy [50].”

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Authors
Hernandez-Torres, F., Aranega, A. E., & Franco, D.
Affiliations
Universidad de Jaén (ES)
Corresponding author
Franco, Diego
Venue
Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms
Publisher
Elsevier BV
Published
2014-09
Volume
1839
Issue
9
Pages
885-897
ISSN
1874-9399 (ISSN-L)
OpenAlex
W1987534159
Cited by
36
References
73
Citations by year
2026: 2 · 2025: 3 · 2024: 4 · 2023: 1 · 2022: 2 · 2021: 5 · 2020: 3 · 2019: 4 · 2018: 5 · 2017: 1 · 2016: 3 · 2015: 3
FWCI
0.75
Type
journal article
Language
en
Open access
closed
Locations
  • Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms (publishedVersion)
  • PubMed (publishedVersion)
Funders
Junta de Andalucía Regional Council (CVI-6556)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
miR-23a, miR-27a, miR-24-2, miRNA clusters, transcriptional regulation, SRF, serum response factor, proximal promoter, muscle hypertrophy, angiotensin II, norepinephrine, myocardium, skeletal muscle, hypertrophic cardiomyopathy, muscle atrophy, regulatory elements
MeSH terms
Angiotensin II, Animals, Gene Expression Regulation, Genes, Regulator, Cardiomegaly, Hypertrophy, Norepinephrine, Promoter Regions, Genetic, Transcription, Genetic, 3T3 Cells, Muscle, Skeletal, Myocytes, Cardiac, MicroRNAs, Mice

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