A feed-forward loop between SorLA and HER3 determines heregulin response and neratinib resistance

Current evidence indicates that resistance to the tyrosine kinase-type cell surface receptor (HER2)-targeted therapies is frequently associated with HER3 and active signaling via HER2-HER3 dimers, particularly in the context of breast cancer. Thus, understanding the response to HER2-HER3 signaling a...

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Veröffentlicht in:Oncogene 2021-02, Vol.40 (7), p.1300-1317
Hauptverfasser: Al-Akhrass, Hussein, Conway, James R. W., Poulsen, Annemarie Svane Aavild, Paatero, Ilkka, Kaivola, Jasmin, Padzik, Artur, Andersen, Olav M., Ivaska, Johanna
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container_end_page 1317
container_issue 7
container_start_page 1300
container_title Oncogene
container_volume 40
creator Al-Akhrass, Hussein
Conway, James R. W.
Poulsen, Annemarie Svane Aavild
Paatero, Ilkka
Kaivola, Jasmin
Padzik, Artur
Andersen, Olav M.
Ivaska, Johanna
description Current evidence indicates that resistance to the tyrosine kinase-type cell surface receptor (HER2)-targeted therapies is frequently associated with HER3 and active signaling via HER2-HER3 dimers, particularly in the context of breast cancer. Thus, understanding the response to HER2-HER3 signaling and the regulation of the dimer is essential to decipher therapy relapse mechanisms. Here, we investigate a bidirectional relationship between HER2-HER3 signaling and a type-1 transmembrane sorting receptor, sortilin-related receptor (SorLA; SORL1 ). We demonstrate that heregulin-mediated signaling supports SorLA transcription downstream of the mitogen-activated protein kinase pathway. In addition, we demonstrate that SorLA interacts directly with HER3, forming a trimeric complex with HER2 and HER3 to attenuate lysosomal degradation of the dimer in a Ras-related protein Rab4-dependent manner. In line with a role for SorLA in supporting the stability of the HER2 and HER3 receptors, loss of SorLA compromised heregulin-induced cell proliferation and sensitized metastatic anti-HER2 therapy-resistant breast cancer cells to neratinib in cancer spheroids in vitro and in vivo in a zebrafish brain xenograft model.
doi_str_mv 10.1038/s41388-020-01604-5
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subjects 13/95
14/19
631/67/1347
631/80/86/2368
64/116
82/103
96/109
96/35
Animals
Apoptosis
Biochemistry & Molecular Biology
Brain - drug effects
Brain - metabolism
Breast cancer
Breast Neoplasms - genetics
Breast Neoplasms - pathology
Care and treatment
Cell Biology
Cell proliferation
Cell Proliferation - drug effects
Cell surface
Development and progression
Drug resistance
Drug Resistance, Neoplasm - drug effects
Drug Resistance, Neoplasm - genetics
Epidermal growth factor
ErbB-2 protein
Female
Gene expression
Genetic aspects
Genetics & Heredity
Health aspects
Heregulin
Heterografts
Human Genetics
Humans
Internal Medicine
Kinases
LDL-Receptor Related Proteins - genetics
Life Sciences & Biomedicine
Lysosomes
MAP kinase
Medicine
Medicine & Public Health
Membrane Transport Proteins - genetics
Metastases
Mice
Neuregulin-1 - pharmacology
Oncology
Protein-tyrosine kinase
Protein-tyrosine kinase receptors
rab4 GTP-Binding Proteins - genetics
Receptor, ErbB-2 - genetics
Receptor, ErbB-3 - genetics
Science & Technology
Spheroids
Spheroids, Cellular - drug effects
Spheroids, Cellular - metabolism
Transcription
Xenografts
Zebrafish
title A feed-forward loop between SorLA and HER3 determines heregulin response and neratinib resistance
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