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Emerging roles and functional mechanisms of PIWI-interacting RNAs
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Journal Article
Emerging roles and functional mechanisms of PIWI-interacting RNAs
2023
Overview
PIWI-interacting RNAs (piRNAs) are a class of small non-coding RNAs that associate with proteins of the PIWI clade of the Argonaute family. First identified in animal germ line cells, piRNAs have essential roles in germ line development. The first function of PIWI–piRNA complexes to be described was the silencing of transposable elements, which is crucial for maintaining the integrity of the germ line genome. Later studies provided new insights into the functions of PIWI–piRNA complexes by demonstrating that they regulate protein-coding genes. Recent studies of piRNA biology, including in new model organisms such as golden hamsters, have deepened our understanding of both piRNA biogenesis and piRNA function. In this Review, we discuss the most recent advances in our understanding of piRNA biogenesis, the molecular mechanisms of piRNA function and the emerging roles of piRNAs in germ line development mainly in flies and mice, and in infertility, cancer and neurological diseases in humans.PIWI-interacting RNAs (piRNAs) are small non-coding RNAs with essential roles in germ line development through silencing of transposable elements and in regulation of protein-coding genes. Recent studies have deepened our understanding of the biogenesis and function of piRNAs and their roles in infertility, cancer and neurological diseases in humans.
Publisher
Nature Publishing Group
Subject
