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MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...

MicroRNAs

MicroRNAs

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...

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Lung microRNA Profiling Across the Estrous Cycle in Ozone-exposed Mice

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Exercise immunology meets MiRNAs.

Julia A Makarova, Diana V Maltseva, Vladimir V Galatenko

Exercise Immunology Review

|July 1, 2014

Summary

This summary is machine-generated.

Physical activity alters gene expression, with microRNAs (miRNAs) emerging as key regulators. These non-coding RNAs play a crucial role in how the immune system and other body systems adapt to exercise.

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Area of Science:

Exercise physiology
Molecular biology
Genetics

Background:

Physical activity significantly impacts protein-coding gene expression.
Non-coding RNAs, particularly microRNAs (miRNAs), represent a critical layer of gene regulation.
Emerging evidence highlights the role of miRNAs in cellular adaptation.

Purpose of the Study:

To review the current understanding of microRNA involvement in exercise adaptation.
To discuss the regulatory role of miRNAs in exercise-responsive genes.
To identify future research directions in the field of exercise and miRNA biology.

Main Methods:

Literature review of existing studies on exercise and non-coding RNAs.
Analysis of data on miRNA expression profiles following physical activity.
Synthesis of current knowledge on miRNA-mediated gene regulation in response to exercise.

Main Results:

Exercise induces changes in the expression profiles of various microRNAs.
MicroRNAs are implicated in the post-transcriptional regulation of genes affected by physical activity.
Evidence supports the involvement of miRNAs in the adaptation of immune and other systems to exercise.

Conclusions:

MicroRNAs are critical mediators of cellular responses to physical activity.
Further research is needed to fully elucidate the complex roles of miRNAs in exercise adaptation.
Understanding miRNA regulation offers potential for novel therapeutic strategies related to exercise.