Journal
NATURE
Volume 505, Issue 7483, Pages 353-359Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nature12987
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Funding
- NIH [T32-GM07205, DP1CA174418, R01HD42012]
- G. Harold & Leila Mathers Foundation
- Ellison Medical Foundation
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The discovery of millions of PIWI-interacting RNAs revealed a fascinating and unanticipated dimension of biology. The PIWI-piRNA pathway has been commonly perceived as germline-specific, even though the somatic function of PIWI proteins was documented when they were first discovered. Recent studies have begun to re-explore this pathway in somatic cells in diverse organisms, particularly lower eukaryotes. These studies have illustrated the multifaceted somatic functions of the pathway not only in transposon silencing but also in genome rearrangement and epigenetic programming, with biological roles in stem-cell function, whole-body regeneration, memory and possibly cancer.
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