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Author Spotlight: Insight Into Advances in Prion Diseases Research
Published on: August 11, 2023
MicroRNAs in Prion Diseases-From Molecular Mechanisms to Insights in Translational Medicine
Danyel Fernandes Contiliani1,2, Yasmin de Araújo Ribeiro1,2, Vitor Nolasco de Moraes1,2
1Graduate Program of Genetics, Department of Genetics, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Av. Bandeirantes, Ribeirao Preto 3900, Brazil.
Abstract:
MicroRNAs (miRNAs) are small non-coding RNA molecules able to post-transcriptionally regulate gene expression via base-pairing with partially complementary sequences of target transcripts. Prion diseases comprise a singular group of neurodegenerative conditions caused by endogenous, misfolded pathogenic (prion) proteins, associated with molecular aggregates. In humans, classical prion diseases include Creutzfeldt-Jakob disease, fatal familial insomnia, Gerstmann-Sträussler-Scheinker syndrome, and kuru. The aim of this review is to present the connections between miRNAs and prions, exploring how the interaction of both molecular actors may help understand the susceptibility, onset, progression, and pathological findings typical of such disorders, as well as the interface with some prion-like disorders, such as Alzheimer's. Additionally, due to the inter-regulation of prions and miRNAs in health and disease, potential biomarkers for non-invasive miRNA-based diagnostics, as well as possible miRNA-based therapies to restore the levels of deregulated miRNAs on prion diseases, are also discussed. Since a cure or effective treatment for prion disorders still pose challenges, miRNA-based therapies emerge as an interesting alternative strategy to tackle such defying medical conditions.
Insights
MicroRNAs (miRNAs) and prions interact in neurodegenerative diseases like Creutzfeldt-Jakob disease. Understanding this connection may lead to new miRNA-based diagnostics and therapies for prion disorders.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Prion diseases are fatal neurodegenerative disorders caused by misfolded prion proteins.
- MicroRNAs (miRNAs) are small non-coding RNAs regulating gene expression post-transcriptionally.
- Classical human prion diseases include CJD, FFI, GSS, and kuru.
Purpose of the Study:
- To review the relationship between miRNAs and prions in neurodegenerative conditions.
- To explore how miRNA-prion interactions influence disease susceptibility, onset, progression, and pathology.
- To discuss the role of miRNAs in prion-like disorders, such as Alzheimer's disease.
Main Methods:
- Literature review of studies on miRNAs and prion diseases.
- Analysis of miRNA regulation in prion pathogenesis.
- Exploration of potential diagnostic and therapeutic applications of miRNAs.
Main Results:
- MiRNAs are implicated in the pathogenesis of prion diseases.
- Dysregulated miRNAs are associated with prion disease progression and pathology.
- MiRNA-prion interactions offer insights into disease mechanisms and potential therapeutic targets.
Conclusions:
- MiRNA-prion interactions are crucial for understanding neurodegeneration.
- MiRNAs hold promise as biomarkers for non-invasive diagnostics of prion diseases.
- MiRNA-based therapies represent a potential strategy to treat challenging prion disorders.
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