Cited by 38MicroRNA in disease regulationRNA Research and SplicingRNA Interference and Gene Delivery

Target-dependent biogenesis of cognate microRNAs in human cells

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Bose, Mainak, Bhattacharyya, Suvendra N.·2016·Nature Communications

Abstract

Extensive research has established how miRNAs regulate target mRNAs by translation repression and/or endonucleolytic degradation in metazoans. However, information related to the effect of target mRNA on biogenesis and stability of corresponding miRNAs in animals is limited. Here we report regulated biogenesis of cognate miRNAs by their target mRNAs. Enhanced pre-miRNA processing by AGO-associated DICER1 contributes to this increased miRNP formation. The processed miRNAs are loaded onto AGO2 to form functionally competent miRISCs both in vivo and also in a cell-free in vitro system. Thus, we identify an additional layer of posttranscriptional regulation that helps the cell to maintain requisite levels of mature forms of respective miRNAs by modulating their processing in a target-dependent manner, a process happening for miR-122 during stress reversal in human hepatic cells.

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  • Low miRNA levels can be compensated for when target mRNA levels are high by stimulating increased loading of cognate miRNA into AGO, thereby improving RNAi activity.

    “Inversely, low miRNA levels can be compensated for, when target mRNA levels are high, by stimulating increased loading of cognate miRNA into AGO, thereby improving RNAi activity (103).”

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Authors
Bose, M., & Bhattacharyya, S. N.
Affiliations
Indian Institute of Chemical Biology (IN)
Corresponding author
Bhattacharyya, Suvendra N.
Venue
Nature Communications
Published
2016-07-22
Volume
7
Issue
1
Pages
12200-12200
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2492541041
Cited by
38
References
54
Citations by year
2026: 3 · 2025: 2 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 7 · 2020: 6 · 2019: 1 · 2018: 5 · 2017: 3
FWCI
1.25
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Independent Social Research Foundation
  • Wellcome Trust (084324/Z/07/A, 084324)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
microRNA biogenesis, miRNA target mRNAs, pre-miRNA processing, DICER1, Argonaute 2, miRNA-induced silencing complex, post-transcriptional regulation, miR-122, stress reversal, miRNA stability
MeSH terms
Amino Acids, Cell Line, Cells, Humans, Models, Biological, RNA, Messenger, Stress, Physiological, MicroRNAs, Ribonuclease III, Argonaute Proteins

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