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AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells

The renin–angiotensin receptor AT2R controls systemic blood pressure and is also suggested to modulate metastasis of cancer cells. However, in the latter case, the mechanisms involved downstream of AT2R remain to be defined. We recently described a novel Caveolin-1(CAV1)/Ras-related protein 5A (Rab5...

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Autores principales: Martínez-Meza, Samuel, Díaz, Jorge, Sandoval-Bórquez, Alejandra, Valenzuela-Valderrama, Manuel, Díaz-Valdivia, Natalia, Rojas-Celis, Victoria, Contreras, Pamela, Huilcaman, Ricardo, Ocaranza, María Paz, Chiong, Mario, Leyton, Lisette, Lavandero, Sergio, Quest, Andrew F.G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6770525/
https://www.ncbi.nlm.nih.gov/pubmed/31484460
http://dx.doi.org/10.3390/cancers11091299
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author Martínez-Meza, Samuel
Díaz, Jorge
Sandoval-Bórquez, Alejandra
Valenzuela-Valderrama, Manuel
Díaz-Valdivia, Natalia
Rojas-Celis, Victoria
Contreras, Pamela
Huilcaman, Ricardo
Ocaranza, María Paz
Chiong, Mario
Leyton, Lisette
Lavandero, Sergio
Quest, Andrew F.G.
author_facet Martínez-Meza, Samuel
Díaz, Jorge
Sandoval-Bórquez, Alejandra
Valenzuela-Valderrama, Manuel
Díaz-Valdivia, Natalia
Rojas-Celis, Victoria
Contreras, Pamela
Huilcaman, Ricardo
Ocaranza, María Paz
Chiong, Mario
Leyton, Lisette
Lavandero, Sergio
Quest, Andrew F.G.
author_sort Martínez-Meza, Samuel
collection PubMed
description The renin–angiotensin receptor AT2R controls systemic blood pressure and is also suggested to modulate metastasis of cancer cells. However, in the latter case, the mechanisms involved downstream of AT2R remain to be defined. We recently described a novel Caveolin-1(CAV1)/Ras-related protein 5A (Rab5)/Ras-related C3 botulinum toxin substrate 1 (Rac1) signaling axis that promotes metastasis in melanoma, colon, and breast cancer cells. Here, we evaluated whether the anti-metastatic effect of AT2R is connected to inhibition of this pathway. We found that murine melanoma B16F10 cells expressed AT2R, while MDA-MB-231 human breast cancer cells did not. AT2R activation blocked migration, transendothelial migration, and metastasis of B16F10(cav-1) cells, and this effect was lost when AT2R was silenced. Additionally, AT2R activation reduced transendothelial migration of A375 human melanoma cells expressing CAV1. The relevance of AT2R was further underscored by showing that overexpression of the AT2R in MDA-MB-231 cells decreased migration. Moreover, AT2R activation increased non-receptor protein tyrosine phosphatase 1B (PTP1B) activity, decreased phosphorylation of CAV1 on tyrosine-14 as well as Rab5/Rac1 activity, and reduced lung metastasis of B16F10(cav-1) cells in C57BL/6 mice. Thus, AT2R activation reduces migration, invasion, and metastasis of cancer cells by PTP1B-mediated CAV1 dephosphorylation and inhibition of the CAV1/Rab5/Rac-1 pathway. In doing so, these observations open up interesting, novel therapeutic opportunities to treat metastatic cancer disease.
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spelling pubmed-67705252019-10-30 AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells Martínez-Meza, Samuel Díaz, Jorge Sandoval-Bórquez, Alejandra Valenzuela-Valderrama, Manuel Díaz-Valdivia, Natalia Rojas-Celis, Victoria Contreras, Pamela Huilcaman, Ricardo Ocaranza, María Paz Chiong, Mario Leyton, Lisette Lavandero, Sergio Quest, Andrew F.G. Cancers (Basel) Article The renin–angiotensin receptor AT2R controls systemic blood pressure and is also suggested to modulate metastasis of cancer cells. However, in the latter case, the mechanisms involved downstream of AT2R remain to be defined. We recently described a novel Caveolin-1(CAV1)/Ras-related protein 5A (Rab5)/Ras-related C3 botulinum toxin substrate 1 (Rac1) signaling axis that promotes metastasis in melanoma, colon, and breast cancer cells. Here, we evaluated whether the anti-metastatic effect of AT2R is connected to inhibition of this pathway. We found that murine melanoma B16F10 cells expressed AT2R, while MDA-MB-231 human breast cancer cells did not. AT2R activation blocked migration, transendothelial migration, and metastasis of B16F10(cav-1) cells, and this effect was lost when AT2R was silenced. Additionally, AT2R activation reduced transendothelial migration of A375 human melanoma cells expressing CAV1. The relevance of AT2R was further underscored by showing that overexpression of the AT2R in MDA-MB-231 cells decreased migration. Moreover, AT2R activation increased non-receptor protein tyrosine phosphatase 1B (PTP1B) activity, decreased phosphorylation of CAV1 on tyrosine-14 as well as Rab5/Rac1 activity, and reduced lung metastasis of B16F10(cav-1) cells in C57BL/6 mice. Thus, AT2R activation reduces migration, invasion, and metastasis of cancer cells by PTP1B-mediated CAV1 dephosphorylation and inhibition of the CAV1/Rab5/Rac-1 pathway. In doing so, these observations open up interesting, novel therapeutic opportunities to treat metastatic cancer disease. MDPI 2019-09-03 /pmc/articles/PMC6770525/ /pubmed/31484460 http://dx.doi.org/10.3390/cancers11091299 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Martínez-Meza, Samuel
Díaz, Jorge
Sandoval-Bórquez, Alejandra
Valenzuela-Valderrama, Manuel
Díaz-Valdivia, Natalia
Rojas-Celis, Victoria
Contreras, Pamela
Huilcaman, Ricardo
Ocaranza, María Paz
Chiong, Mario
Leyton, Lisette
Lavandero, Sergio
Quest, Andrew F.G.
AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells
title AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells
title_full AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells
title_fullStr AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells
title_full_unstemmed AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells
title_short AT2 Receptor Mediated Activation of the Tyrosine Phosphatase PTP1B Blocks Caveolin-1 Enhanced Migration, Invasion and Metastasis of Cancer Cells
title_sort at2 receptor mediated activation of the tyrosine phosphatase ptp1b blocks caveolin-1 enhanced migration, invasion and metastasis of cancer cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6770525/
https://www.ncbi.nlm.nih.gov/pubmed/31484460
http://dx.doi.org/10.3390/cancers11091299
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