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Updated: Aug 13, 2025

Imaging InlC Secretion to Investigate Cellular Infection by the Bacterial Pathogen Listeria monocytogenes
Published on: September 19, 2013
MicroRNAs induced by Listeria monocytogenes and their role in cells
Javad Allahverdy1, Niloufar Rashidi1
1Department of Medical Laboratory Sciences, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
Abstract:
Listeria monocytogenes (Lm) causes abortions at high rates and threatens newborns' lives. Also, the elderly and immunocompromised individuals are particularly vulnerable neurologically. The bacterium exerts its pathogenesis intracellularly by manipulating cell organs. It manipulates nucleus elements, microRNAs (miRNAs), in order to increase survival and evade immunity. miRNAs are small non-coding RNAs that degrade gene expression post-transcriptionally. Any alteration to the expression of miRNAs affects various cascades in cells, especially immunity-related responses. Thus, utilizing miRNAs as a novel therapeutic agent not only restricts infection but enhances immunity reactions. This review provides an overview of miRNAs in listeriosis, their role in cells, and their prospects as therapy.
Insights
Listeria monocytogenes (Lm) infection impacts pregnancy and vulnerable populations. MicroRNAs (miRNAs) are key to Lm pathogenesis and immune evasion, offering potential therapeutic strategies.
Area of Science:
- Microbiology
- Molecular Biology
- Immunology
Background:
- Listeria monocytogenes (Lm) is a pathogen causing severe pregnancy complications and neurological issues in vulnerable groups.
- Lm employs intracellular pathogenesis, manipulating host cell machinery, including nuclear microRNAs (miRNAs).
- miRNAs are small non-coding RNAs regulating gene expression, crucial for cellular functions and immune responses.
Purpose of the Study:
- To review the role of microRNAs (miRNAs) in the context of Listeria monocytogenes infection (listeriosis).
- To elucidate the mechanisms by which Lm manipulates miRNAs for its survival and immune evasion.
- To explore the therapeutic potential of miRNAs in combating listeriosis and enhancing host immunity.
Main Methods:
- Literature review of studies on Listeria monocytogenes pathogenesis.
- Analysis of research on microRNA regulation and function in host-pathogen interactions.
- Synthesis of current understanding of miRNA-mediated immune responses in listeriosis.
Main Results:
- Listeria monocytogenes manipulates host cell microRNAs (miRNAs) to facilitate intracellular survival and evade immune detection.
- Alterations in miRNA expression significantly impact cellular signaling pathways, particularly those involved in immunity.
- Dysregulated miRNAs contribute to the pathogenesis of listeriosis.
Conclusions:
- MicroRNAs (miRNAs) play a critical role in the host-pathogen dynamics of listeriosis.
- Targeting or utilizing miRNAs presents a promising novel therapeutic avenue for treating Lm infections.
- Further research into miRNA-based therapies could enhance immune responses against Listeria monocytogenes.
Related Concept Videos
MicroRNAs
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 the regulation of 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...
Translational Regulation
lncRNA - Long Non-coding RNAs

