Cited by 88MicroRNA in disease regulationExtracellular vesicles in diseaseRNA Interference and Gene Delivery

Evidence and potential in vivo functions for biofluid miRNAs: From expression profiling to functional testing: Potential roles of extracellular miRNAs as indicators of physiological change and as agents of intercellular information exchange

Iftikhar, Hina, Carney, Ginger E.·2016·BioEssays

Abstract

A controversial hypothesis in RNA biology is that extracellular microRNAs (miRNAs), including those in biofluids, have non-cell-autonomous activities. Several studies have characterized biofluid miRNA profiles in healthy or diseased individuals but generally have failed to identify distinct disease signatures. It remains unclear whether alterations in fluid miRNA levels are simply indicators of physiological change or whether miRNAs are taken up by new cells at concentrations sufficient to affect gene expression. There are limitations to biofluid miRNA studies performed to date: methodology for isolating and quantifying biofluid miRNAs is not standardized across studies; mechanistic details of miRNA release and uptake are incomplete; and efforts to assess non-cell-autonomous effects of extracellular miRNAs have employed predominantly in vitro strategies. We describe controversies and questions that need to be addressed to test possible in vivo roles of extracellular miRNAs and propose model organisms with rich genetic toolkits for carrying out in vivo functional analyses.

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Crossref · 10.1002/bies.201500130

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  • miRNAs can be secreted into extracellular fluids and transported to target cells via vesicles such as exosomes or by binding to proteins including Argonautes.

    “miRNAs can be secreted into extracellular fluids and transported to target cells via vesicles, such as exosomes, or by binding to proteins, including Argonautes.”

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Authors
Iftikhar, H., & Carney, G. E.
Affiliations
Texas A&M University (US)
Corresponding author
Carney, Ginger E.
Venue
BioEssays
Publisher
Wiley
Published
2016-03-02
Volume
38
Issue
4
Pages
367-378
ISSN
  • 0265-9247 (ISSN-L)
  • 1521-1878
OpenAlex
W2301683389
Cited by
87
References
120
Citations by year
2026: 5 · 2025: 6 · 2024: 8 · 2023: 10 · 2022: 11 · 2021: 11 · 2020: 18 · 2019: 7 · 2018: 1 · 2017: 7 · 2016: 3
FWCI
0.55
Type
journal article
Language
en
Open access
closed
Locations
  • BioEssays (publishedVersion)
  • PubMed (publishedVersion)
Funders
Division of Integrative Organismal Systems
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
extracellular microRNAs, biological fluids, non-cell-autonomous effects, disease biomarkers, model organisms, miRNA expression profiling
MeSH terms
Extracellular Vesicles, Animals, Biological Transport, Body Fluids, Cell Communication, Drosophila melanogaster, Eukaryotic Cells, Extracellular Space, Gene Expression Regulation, Humans, Zebrafish, Signal Transduction, Caenorhabditis elegans, MicroRNAs, Mice, Exosomes

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