Artikel ; Online: GRB2 is a BECN1 interacting protein that regulates autophagy.
2024 Band 15, Heft 1, Seite(n) 14
Abstract: GRB2 is an adaptor protein of HER2 (and several other tyrosine kinases), which we identified as a novel BECN1 (Beclin 1) interacting partner. GRB2 co-immunoprecipitated with BECN1 in several breast cancer cell lines and regulates autophagy through a ... ...
Abstract | GRB2 is an adaptor protein of HER2 (and several other tyrosine kinases), which we identified as a novel BECN1 (Beclin 1) interacting partner. GRB2 co-immunoprecipitated with BECN1 in several breast cancer cell lines and regulates autophagy through a mechanism involving the modulation of the class III PI3Kinase VPS34 activity. In ovo studies in a CAM (Chicken Chorioallantoic Membrane) model indicated that GRB2 knockdown, as well as overexpression of GRB2 loss-of-function mutants (Y52A and S86A-R88A) compromised tumor growth. These differences in tumor growth correlated with differential autophagy activity, indicating that autophagy effects might be related to the effects on tumorigenesis. Our data highlight a novel function of GRB2 as a BECN1 binding protein and a regulator of autophagy. |
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Mesh-Begriff(e) | Animals ; Adaptor Proteins, Signal Transducing ; Autophagy ; Beclin-1/metabolism ; Carcinogenesis ; Cell Transformation, Neoplastic ; Humans ; GRB2 Adaptor Protein/metabolism |
Chemische Substanzen | Adaptor Proteins, Signal Transducing ; Beclin-1 ; GRB2 protein, human ; BECN1 protein, human ; GRB2 Adaptor Protein |
Sprache | Englisch |
Erscheinungsdatum | 2024-01-05 |
Erscheinungsland | England |
Dokumenttyp | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2541626-1 |
ISSN | 2041-4889 ; 2041-4889 |
ISSN (online) | 2041-4889 |
ISSN | 2041-4889 |
DOI | 10.1038/s41419-023-06387-7 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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