Related Experiment Video
Updated: May 10, 2026

07:14
Optogenetic Phase Transition of TDP-43 in Spinal Motor Neurons of Zebrafish Larvae
Published on: February 25, 2022
Noncoding RNAs in Neurodegenerative Diseases
Shraddha D Rege1, Thangiah Geetha, Satyanarayana R Pondugula
1Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, AL 36849, USA.
ISRN Neurology
|June 6, 2013
Summary
MicroRNAs (miRNAs) are key regulators in the central nervous system, controlling gene expression. Their dysregulation is linked to neurodegenerative diseases, offering potential diagnostic and therapeutic strategies.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Noncoding RNAs, particularly microRNAs (miRNAs), play critical roles in central nervous system development and function.
- These roles include neurogenesis, neural stem cell regulation, neurotransmission, synaptic plasticity, and DNA damage responses.
- Dysregulation of these processes is implicated in various neurological disorders.
Purpose of the Study:
- To review the biogenesis and diverse functions of noncoding RNAs, with a specific focus on microRNAs (miRNAs).
- To explore the misregulation of miRNAs in the context of neurodegenerative diseases.
- To discuss the potential of miRNAs as diagnostic biomarkers and therapeutic targets for these conditions.
Main Methods:
- Literature review of studies on noncoding RNA and miRNA function in the central nervous system.
- Analysis of research linking miRNA expression changes to neurodegenerative disease pathogenesis.
- Examination of current and emerging therapeutic strategies involving miRNAs.
Main Results:
- MicroRNAs are identified as chief regulators of gene expression, essential for numerous CNS functions.
- Altered miRNA expression levels are consistently observed in patients with neurodegenerative diseases.
- Evidence suggests miRNAs can serve as reliable diagnostic biomarkers and effective therapeutic agents.
Conclusions:
- MicroRNAs are crucial for maintaining CNS health and function.
- Aberrant miRNA expression is a hallmark of neurodegenerative diseases.
- Targeting miRNAs presents a promising avenue for diagnosing and treating neurodegenerative disorders.
Related Concept Videos
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
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...
Types of RNA
Overview
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...
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...
Nonsense-mediated mRNA Decay
The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Nonsense-mediated mRNA Decay
The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...