LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression

RNA-binding proteins (RBPs) bind to and post-transcriptionally regulate the stability of mRNAs. La-related protein 1 (LARP1) is a conserved RBP that interacts with poly-A-binding protein and is known to regulate 5′-terminal oligopyrimidine tract (TOP) mRNA translation. Here, we show that LARP1 is co...

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Autors principals: Blagden, S, Bushell, M, Willis, A, Mura, M, Hopkins, T, Michael, T, Abd-Latip, N, Curry, E, Weir, J, Aboagye, E, Sturge, J, Jameson, C, Mauri, F
Format: Journal article
Publicat: Nature Publishing Group: Open Access Hybrid Model Option B 2015
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author Blagden, S
Bushell, M
Willis, A
Mura, M
Hopkins, T
Michael, T
Abd-Latip, N
Curry, E
Weir, J
Aboagye, E
Sturge, J
Jameson, C
Mauri, F
author_facet Blagden, S
Bushell, M
Willis, A
Mura, M
Hopkins, T
Michael, T
Abd-Latip, N
Curry, E
Weir, J
Aboagye, E
Sturge, J
Jameson, C
Mauri, F
author_sort Blagden, S
collection OXFORD
description RNA-binding proteins (RBPs) bind to and post-transcriptionally regulate the stability of mRNAs. La-related protein 1 (LARP1) is a conserved RBP that interacts with poly-A-binding protein and is known to regulate 5′-terminal oligopyrimidine tract (TOP) mRNA translation. Here, we show that LARP1 is complexed to 3000 mRNAs enriched for cancer pathways. A prominent member of the LARP1 interactome is mTOR whose mRNA transcript is stabilized by LARP1. At a functional level, we show that LARP1 promotes cell migration, invasion, anchorage-independent growth and in vivo tumorigenesis. Furthermore, we show that LARP1 expression is elevated in epithelial cancers such as cervical and non-small cell lung cancers, where its expression correlates with disease progression and adverse prognosis, respectively. We therefore conclude that, through the post-transcriptional regulation of genes such as mTOR within cancer pathways, LARP1 contributes to cancer progression.
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spelling oxford-uuid:f53acfee-8c6b-4289-9814-db3db9a1def52022-03-27T12:25:48ZLARP1 post-transcriptionally regulates mTOR and contributes to cancer progressionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f53acfee-8c6b-4289-9814-db3db9a1def5Symplectic Elements at OxfordNature Publishing Group: Open Access Hybrid Model Option B2015Blagden, SBushell, MWillis, AMura, MHopkins, TMichael, TAbd-Latip, NCurry, EWeir, JAboagye, ESturge, JJameson, CMauri, FRNA-binding proteins (RBPs) bind to and post-transcriptionally regulate the stability of mRNAs. La-related protein 1 (LARP1) is a conserved RBP that interacts with poly-A-binding protein and is known to regulate 5′-terminal oligopyrimidine tract (TOP) mRNA translation. Here, we show that LARP1 is complexed to 3000 mRNAs enriched for cancer pathways. A prominent member of the LARP1 interactome is mTOR whose mRNA transcript is stabilized by LARP1. At a functional level, we show that LARP1 promotes cell migration, invasion, anchorage-independent growth and in vivo tumorigenesis. Furthermore, we show that LARP1 expression is elevated in epithelial cancers such as cervical and non-small cell lung cancers, where its expression correlates with disease progression and adverse prognosis, respectively. We therefore conclude that, through the post-transcriptional regulation of genes such as mTOR within cancer pathways, LARP1 contributes to cancer progression.
spellingShingle Blagden, S
Bushell, M
Willis, A
Mura, M
Hopkins, T
Michael, T
Abd-Latip, N
Curry, E
Weir, J
Aboagye, E
Sturge, J
Jameson, C
Mauri, F
LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression
title LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression
title_full LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression
title_fullStr LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression
title_full_unstemmed LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression
title_short LARP1 post-transcriptionally regulates mTOR and contributes to cancer progression
title_sort larp1 post transcriptionally regulates mtor and contributes to cancer progression
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