Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

PIWI-interacting RNAs (piRNA) suppress selfish genetic elements and are essential for germ cell biology in animals. They also play critical roles in regeneration in planaria, regulate gene expression in adult mammalian testes, and participate in antiviral defense in mosquitoes. Inspired by a recent workshop on PIWI proteins and piRNAs, this commentary aims to summarize fundamental aspects of piRNA biology, highlight recent advances, and discuss key outstanding questions. It is written by and for biochemists, geneticists, and evolutionary biologists, and represents our interdisciplinary perspective.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11574264PMC
http://dx.doi.org/10.1038/s44318-024-00253-8DOI Listing

Publication Analysis

Top Keywords

piwi-interacting rnas
8
rnas piwi-interacting
4
rnas pirna
4
pirna suppress
4
suppress selfish
4
selfish genetic
4
genetic elements
4
elements essential
4
essential germ
4
germ cell
4

Similar Publications

Target RNA recognition drives PIWI complex assembly for transposon silencing.

Mol Cell

September 2025

Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Dr. Bohr-Gasse 3, 1030 Vienna, Austria. Electronic address:

PIWI-clade Argonaute proteins and their associated PIWI-interacting RNAs (piRNAs) are essential guardians of genome integrity, silencing transposable elements through distinct nuclear and cytoplasmic pathways. Nuclear PIWI proteins direct heterochromatin formation at transposon loci, while cytoplasmic PIWIs cleave transposon transcripts to initiate piRNA amplification. Both processes rely on target RNA recognition by PIWI-piRNA complexes, yet how this leads to effector recruitment is unclear.

View Article and Find Full Text PDF

A conserved PIWI silencing complex detects piRNA-target engagement.

Mol Cell

September 2025

Department of Integrative Structural and Computational Biology, Scripps Research, La Jolla, CA, USA. Electronic address:

In animal germ cells, PIWI proteins use piRNAs to detect active selfish genetic elements. Base-pairing to a piRNA defines transposon recognition, but how this interaction triggers a defensive response remains unclear. Here, we identify a transposon recognition complex composed of the silkworm proteins Siwi, GTSF1, and Maelstrom.

View Article and Find Full Text PDF

To investigate the mechanism by which PIWI interacting RNA piR-hsa-26925 regulates the invasion and metastasis of lung adenocarcinoma through Methyltransferase-like 3 (METTL3)-mediated m6A methylation modification. The expression levels of piR-hsa-26925 were detected in lung adenocarcinoma cell lines (H1650, H1299, H1975, and A549) and normal lung epithelial cells (BEAS-2B) using real-time fluorescent quantitative PCR (qRT-PCR). Lung adenocarcinoma cells were transfected using transient RNA transfection technology, divided into a piR-hsa-26925 knockdown group in the A549 lung adenocarcinoma cell line and a negative control (NC-1) group; the lung adenocarcinoma H1299 cell line piR-hsa-26925 overexpression group and negative control (NC-2) group.

View Article and Find Full Text PDF

FungiSNC: An integrated database for fungi small non-coding RNAs based on high-throughput sequencing.

J Adv Res

August 2025

Microbiology and intelligent biomanufacturing Key Laboratory of Sichuan Province, College of Life Science, Sichuan University, Chengdu, Sichuan 610041, China. Electronic address:

Introduction: Small non-coding RNAs (sncRNAs) have been proven to play crucial roles in various biological processes such as development, stress responses, virulence, and pathogenicity. However, to the best of our knowledge, none of the currently available databases can store, manage, and analyze the vast amounts of sncRNA sequencing data. A comprehensive web-based platform for the integration and analysis of sncRNAs in fungi and their potential functions is still lacking.

View Article and Find Full Text PDF

: Neurodevelopmental disorders, including autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), are increasingly recognized as conditions arising from multifaceted interactions among genetic predisposition, environmental exposures, and epigenetic modifications. Among epigenetic mechanisms, non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and PIWI-interacting RNAs (piRNAs), have gained attention as pivotal regulators of gene expression during neurodevelopment. These RNA species do not encode proteins but modulate gene expression at transcriptional and post-transcriptional levels, thereby influencing neuronal differentiation, synaptogenesis, and plasticity.

View Article and Find Full Text PDF