Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice

SUMMARY Cellular ribosomal protein L29 (RPL29) is known to be important in protein synthesis, but its function during angiogenesis has never been described before. We have shown previously that mice lacking β3-integrins support enhanced tumour angiogenesis and, therefore, deletion of endothelial αvβ...

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Main Authors: Dylan T. Jones, Tanguy Lechertier, Louise E. Reynolds, Richard Mitter, Stephen D. Robinson, Catherine B. Kirn-Safran, Kairbaan M. Hodivala-Dilke
Format: Article
Language:English
Published: The Company of Biologists 2013-01-01
Series:Disease Models & Mechanisms
Online Access:http://dmm.biologists.org/content/6/1/115
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author Dylan T. Jones
Tanguy Lechertier
Louise E. Reynolds
Richard Mitter
Stephen D. Robinson
Catherine B. Kirn-Safran
Kairbaan M. Hodivala-Dilke
author_facet Dylan T. Jones
Tanguy Lechertier
Louise E. Reynolds
Richard Mitter
Stephen D. Robinson
Catherine B. Kirn-Safran
Kairbaan M. Hodivala-Dilke
author_sort Dylan T. Jones
collection DOAJ
description SUMMARY Cellular ribosomal protein L29 (RPL29) is known to be important in protein synthesis, but its function during angiogenesis has never been described before. We have shown previously that mice lacking β3-integrins support enhanced tumour angiogenesis and, therefore, deletion of endothelial αvβ3 can provide a method for discovery of novel regulators of tumour angiogenesis. Here, we describe significant upregulation of RPL29 in β3-null endothelial cells at both the mRNA and protein level. Ex vivo, we show that VEGF-stimulated microvessel sprouting was reduced significantly in Rpl29-heterozygous and Rpl29-null aortic ring assays compared with wild-type controls. Moreover, we provide in vivo evidence that RPL29 can regulate tumour angiogenesis. Tumour blood vessel density in subcutaneously grown Lewis lung carcinomas was reduced significantly in Rpl29-mutant mice. Additionally, depletion of Rpl29 using RNA interference inhibited VEGF-induced aortic ring sprouting, suggesting that anti-RPL29 strategies might have anti-angiogenic potential. Overall, our results identify that loss or depletion of RPL29 can reduce angiogenesis in vivo and ex vivo.
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spelling doaj.art-bcdc0562099e4d4baa6877853fc23d6f2022-12-22T02:07:13ZengThe Company of BiologistsDisease Models & Mechanisms1754-84031754-84112013-01-016111512410.1242/dmm.009183009183Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in miceDylan T. JonesTanguy LechertierLouise E. ReynoldsRichard MitterStephen D. RobinsonCatherine B. Kirn-SafranKairbaan M. Hodivala-DilkeSUMMARY Cellular ribosomal protein L29 (RPL29) is known to be important in protein synthesis, but its function during angiogenesis has never been described before. We have shown previously that mice lacking β3-integrins support enhanced tumour angiogenesis and, therefore, deletion of endothelial αvβ3 can provide a method for discovery of novel regulators of tumour angiogenesis. Here, we describe significant upregulation of RPL29 in β3-null endothelial cells at both the mRNA and protein level. Ex vivo, we show that VEGF-stimulated microvessel sprouting was reduced significantly in Rpl29-heterozygous and Rpl29-null aortic ring assays compared with wild-type controls. Moreover, we provide in vivo evidence that RPL29 can regulate tumour angiogenesis. Tumour blood vessel density in subcutaneously grown Lewis lung carcinomas was reduced significantly in Rpl29-mutant mice. Additionally, depletion of Rpl29 using RNA interference inhibited VEGF-induced aortic ring sprouting, suggesting that anti-RPL29 strategies might have anti-angiogenic potential. Overall, our results identify that loss or depletion of RPL29 can reduce angiogenesis in vivo and ex vivo.http://dmm.biologists.org/content/6/1/115
spellingShingle Dylan T. Jones
Tanguy Lechertier
Louise E. Reynolds
Richard Mitter
Stephen D. Robinson
Catherine B. Kirn-Safran
Kairbaan M. Hodivala-Dilke
Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice
Disease Models & Mechanisms
title Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice
title_full Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice
title_fullStr Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice
title_full_unstemmed Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice
title_short Endogenous ribosomal protein L29 (RPL29): a newly identified regulator of angiogenesis in mice
title_sort endogenous ribosomal protein l29 rpl29 a newly identified regulator of angiogenesis in mice
url http://dmm.biologists.org/content/6/1/115
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