Plexin-B3 expression stimulates MET signaling, breast cancer stem cell specification, and lung metastasis.
Cell Rep
; 42(3): 112164, 2023 03 28.
Article
em En
| MEDLINE
| ID: mdl-36857181
ABSTRACT
Intratumoral hypoxia is a microenvironmental feature that promotes breast cancer progression and is associated with cancer mortality. Plexin B3 (PLXNB3) is highly expressed in estrogen receptor-negative breast cancer, but the underlying mechanisms and consequences have not been thoroughly investigated. Here, we report that PLXNB3 expression is increased in response to hypoxia and that PLXNB3 is a direct target gene of hypoxia-inducible factor 1 (HIF-1) in human breast cancer cells. PLXNB3 expression is correlated with HIF-1α immunohistochemistry, breast cancer grade and stage, and patient mortality. Mechanistically, PLXNB3 is required for hypoxia-induced MET/SRC/focal adhesion kinase (FAK) and MET/SRC/STAT3/NANOG signaling as well as hypoxia-induced breast cancer cell migration, invasion, and cancer stem cell specification. PLXNB3 knockdown impairs tumor formation and lung metastasis in orthotopic breast cancer mouse models.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
Neoplasias Pulmonares
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article