Related Experiment Video
Updated: Jun 22, 2025

09:39
Enhanced Northern Blot Detection of Small RNA Species in Drosophila Melanogaster
Published on: August 21, 2014
24.1K
PIWI-Interacting RNAs: A Pivotal Regulator in Neurological Development and Disease
Xian Pan1, Wang Dai1, Zhenzhen Wang1
1Center for Precision Medicine, School of Medicine and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China.
Genes
|June 27, 2024
Summary
PIWI-interacting RNAs (piRNAs) are small non-coding RNAs found in the brain. This review explores their role in neural development and CNS disorders, highlighting potential for RNA-based therapeutics.
Area of Science:
- Molecular Biology
- Neuroscience
- Genetics
Background:
- PIWI-interacting RNAs (piRNAs) are small non-coding RNAs (sncRNAs) of 24-32 nucleotides.
- Initially identified in reproductive systems, piRNAs guide PIWI proteins to cleave transposon transcripts.
- piRNAs are abundant in the brain and often dysregulated in central nervous system (CNS) disorders.
Purpose of the Study:
- To review the structure, properties, and databases of piRNAs.
- To elucidate the functional roles of piRNAs in neural development and CNS degenerative disorders.
- To highlight the potential of piRNAs/PIWI for understanding CNS development and treating neural diseases.
Main Methods:
- Literature review of existing studies on piRNAs.
- Analysis of piRNA structure, properties, and available databases.
- Synthesis of research on piRNA involvement in neural development and neurodegenerative diseases.
Main Results:
- piRNAs play a role in neural development and are implicated in CNS disorders.
- Aberrant regulation of piRNAs is observed in various central nervous system conditions.
- Understanding piRNA mechanisms offers insights into neural pathologies.
Conclusions:
- Further research into piRNAs and PIWI proteins is crucial for understanding CNS development.
- piRNAs represent a promising target for novel RNA-based therapeutics for neural diseases.
- Elucidating piRNA functions could lead to new treatment strategies for CNS disorders.
More Related Videos
Related Concept Videos
piRNA - Piwi-interacting RNAs
6.8K
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...
6.8K
RNA Interference
26.0K
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...
26.0K
Experimental RNAi
6.1K
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...
6.1K
siRNA - Small Interfering RNAs
16.7K
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...
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...
16.7K
Types of RNA
63.5K
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...
63.5K
lncRNA - Long Non-coding RNAs
8.5K
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...
8.5K

