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Front Oncol. 2020 Jul 30;10:1004. doi: 10.3389/fonc.2020.01004. eCollection 2020.

Phosphorylation of Endothelin-Converting Enzyme-1c at Serines 18 and 20 by CK2 Promotes Aggressiveness Traits in Colorectal Cancer Cells.

Frontiers in oncology

Pablo Pérez-Moreno, Camila Quezada-Meza, Cristopher Chavez-Almarza, Ignacio Niechi, Eduardo Silva-Pavez, César Trigo-Hidalgo, Francisco Aguayo, Lilian Jara, Albano Cáceres-Verschae, Manuel Varas-Godoy, Víctor M Díaz, Antonio García de Herreros, Verónica A Burzio, Julio C Tapia

Affiliations

  1. Programa de Biología Celular y Molecular, Facultad de Medicina, ICBM, Universidad de Chile, Santiago, Chile.
  2. Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Valdivia, Chile.
  3. Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Santiago, Chile.
  4. Programa de Virología, Facultad de Medicina, ICBM, Universidad de Chile, Santiago, Chile.
  5. Programa de Genética, Facultad de Medicina, ICBM, Universidad de Chile, Santiago, Chile.
  6. Centro de Biología Celular y Biomedicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile.
  7. Unidad Asociada CSIC, Programa de Recerca en Cáncer, Departament de Ciéncies Experimentals i de la Salut, Institut Hospital del Mar d'Investigacions Médiques, Universitat Pompeu Fabra, Barcelona, Spain.
  8. Facultad de Ciencias de la Vida, Universidad Andrés Bello, Fundación Ciencia & Vida, Andes Biotechnologies SpA, Santiago, Chile.

PMID: 32850305 PMCID: PMC7406796 DOI: 10.3389/fonc.2020.01004

Abstract

Endothelin-converting enzyme-1 (ECE1) activates the endothelin-1 peptide, which upregulates pathways that are related to diverse hallmarks of cancer. ECE1 is expressed as four isoforms differing in their N-terminal domains. Protein kinase CK2 phosphorylates the N-terminus of isoform ECE1c, enhancing its stability and promoting invasiveness of colorectal cancer cells. However, the specific residues in ECE1c that are phosphorylated by CK2 and how this phosphorylation promotes invasiveness was unknown. Here we demonstrate that Ser-18 and Ser-20 are the

Copyright © 2020 Pérez-Moreno, Quezada-Meza, Chavez-Almarza, Niechi, Silva-Pavez, Trigo-Hidalgo, Aguayo, Jara, Cáceres-Verschae, Varas-Godoy, Díaz, García de Herreros, Burzio and Tapia.

Keywords: aggressiveness; biomarker; cancer prognosis; pharmacological inhibitor; phosphorylation; protein stability

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