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CD3e recruits Numb to promote TCR degradation

Abstract: Modulation of TCR signaling upon ligand binding is achieved by changes in the equilibrium between TCR degradation, recycling and synthesis; surprisingly, the molecular mechanism of such an important process is not fully understood. Here, we describe the role of a new player in the mediation of TCR degradation: the endocytic adaptor Numb. Our data show that Numb inhibition leads to abnormal intracellular distribution and defective TCR degradation in mature T lymphocytes. In addition, we find that Numb simultaneously binds to both Cbl and a site within CD3e that overlaps with the Nck binding site. As a result, Cbl couples specifically to the CD3e chain to mediate TCR degradation. The present study unveils a novel role of Numb that lies at the heart of TCR signaling initiation and termination

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Int Immunol. 2016 Mar;28(3):127-37

Editorial: Oxford : [Oxford University Press

 Año de publicación: 2015

Nº de páginas: 11

Tipo de publicación: Artículo de Revista

 DOI: 10.1093/intimm/dxv060

ISSN: 0953-8178,1460-2377

Autores/as

MARTÍN BLANCO, NADIA

JIMÉNEZ TEJA, DANIEL

GABRIEL BRETONES SANCHEZ

BORROTO, ALDO

CARABALLO, MICHAEL

SCREPANTI, ISABELLA

ALARCÓN, BALBINO

CANELLES, MATILDE