Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia

MicroRNAs are well characterized in their role in silencing gene expression by targeting 3´-UTR of mRNAs in cytoplasm. However, recent studies have shown that miRNAs have a role in the regulation of genes in the nucleus, where they are abundantly located. We show here that in mouse endothelial cell...

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Những tác giả chính: Laitinen, P, Väänänen, M-A, Kolari, I-L, Mäkinen, PI, Kaikkonen, MU, Weinberg, MS, Morris, KV, Korhonen, P, Malm, T, Ylä-Herttuala, S, Roberts, TC, Turunen, MP, Turunen, TA
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: Public Library of Science 2022
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author Laitinen, P
Väänänen, M-A
Kolari, I-L
Mäkinen, PI
Kaikkonen, MU
Weinberg, MS
Morris, KV
Korhonen, P
Malm, T
Ylä-Herttuala, S
Roberts, TC
Turunen, MP
Turunen, TA
author_facet Laitinen, P
Väänänen, M-A
Kolari, I-L
Mäkinen, PI
Kaikkonen, MU
Weinberg, MS
Morris, KV
Korhonen, P
Malm, T
Ylä-Herttuala, S
Roberts, TC
Turunen, MP
Turunen, TA
author_sort Laitinen, P
collection OXFORD
description MicroRNAs are well characterized in their role in silencing gene expression by targeting 3´-UTR of mRNAs in cytoplasm. However, recent studies have shown that miRNAs have a role in the regulation of genes in the nucleus, where they are abundantly located. We show here that in mouse endothelial cell line (C166), nuclear microRNA miR-466c participates in the regulation of vascular endothelial growth factor a (<i>Vegfa</i>) gene expression in hypoxia. Upregulation of <i>Vegfa</i> expression in response to hypoxia was significantly compromised after removal of miR-466c with CRISPR-Cas9 genomic deletion. We identified a promoter-associated long non-coding RNA on mouse <i>Vegfa</i> promoter and show that miR-466c directly binds to this transcript to modulate <i>Vegfa</i> expression. Collectively, these observations suggest that miR-466c regulates <i>Vegfa</i> gene transcription in the nucleus by targeting the promoter, and expands on our understanding of the role of miRNAs well beyond their canonical role.
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spelling oxford-uuid:19d5482c-1e17-4120-a775-31fd096c79c52023-11-08T16:14:01ZNuclear microRNA-466c regulates Vegfa expression in response to hypoxiaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:19d5482c-1e17-4120-a775-31fd096c79c5EnglishSymplectic ElementsPublic Library of Science2022Laitinen, PVäänänen, M-AKolari, I-LMäkinen, PIKaikkonen, MUWeinberg, MSMorris, KVKorhonen, PMalm, TYlä-Herttuala, SRoberts, TCTurunen, MPTurunen, TAMicroRNAs are well characterized in their role in silencing gene expression by targeting 3´-UTR of mRNAs in cytoplasm. However, recent studies have shown that miRNAs have a role in the regulation of genes in the nucleus, where they are abundantly located. We show here that in mouse endothelial cell line (C166), nuclear microRNA miR-466c participates in the regulation of vascular endothelial growth factor a (<i>Vegfa</i>) gene expression in hypoxia. Upregulation of <i>Vegfa</i> expression in response to hypoxia was significantly compromised after removal of miR-466c with CRISPR-Cas9 genomic deletion. We identified a promoter-associated long non-coding RNA on mouse <i>Vegfa</i> promoter and show that miR-466c directly binds to this transcript to modulate <i>Vegfa</i> expression. Collectively, these observations suggest that miR-466c regulates <i>Vegfa</i> gene transcription in the nucleus by targeting the promoter, and expands on our understanding of the role of miRNAs well beyond their canonical role.
spellingShingle Laitinen, P
Väänänen, M-A
Kolari, I-L
Mäkinen, PI
Kaikkonen, MU
Weinberg, MS
Morris, KV
Korhonen, P
Malm, T
Ylä-Herttuala, S
Roberts, TC
Turunen, MP
Turunen, TA
Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia
title Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia
title_full Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia
title_fullStr Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia
title_full_unstemmed Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia
title_short Nuclear microRNA-466c regulates Vegfa expression in response to hypoxia
title_sort nuclear microrna 466c regulates vegfa expression in response to hypoxia
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