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Updated: May 23, 2026

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mRNA Interactome Capture from Plant Protoplasts
Published on: July 28, 2017
P-bodies and mitochondria: which place in RNA interference?
Michèle Ernoult-Lange1, Marianne Bénard, Michel Kress
1UPMC Univ Paris 06, CNRS-FRE 3402, 9 quai Saint Bernard, Paris, France.
Biochimie
|March 27, 2012
Summary
MicroRNAs (miRNAs) are key regulators in RNA interference (RNAi) pathways. This review explores their links to P-bodies and mitochondria, highlighting their role in cell metabolism.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- MicroRNAs (miRNAs) are crucial regulators of gene expression via RNA interference (RNAi).
- The RNA-induced silencing complex (RISC) mediates miRNA function by binding to target messenger RNAs (mRNAs).
- While RISC mechanisms are well-studied, the regulation of RNAi itself remains less understood.
Purpose of the Study:
- To review recent findings on the interplay between RNAi, P-bodies, and mitochondria.
- To discuss the implications of these interactions for cellular metabolism.
Main Methods:
- Literature review of recent scientific studies.
- Synthesis of data on physical and functional relationships between RNAi machinery, P-bodies, and mitochondria.
Main Results:
- Emerging evidence demonstrates significant crosstalk between RNAi pathways, P-bodies, and mitochondria.
- These interactions suggest a coordinated regulation of gene expression and cellular functions.
Conclusions:
- The integration of RNAi, P-bodies, and mitochondria represents a critical regulatory network.
- Understanding this network is essential for comprehending cellular metabolism and potential therapeutic interventions.
Related Concept Videos
RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
piRNA - Piwi-interacting RNAs
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
siRNA - Small Interfering RNAs
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
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Types of RNA
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...

