POTEE promotes breast cancer cell malignancy by inducing invadopodia formation through the activation of SUMOylated Rac1.
Mol Oncol
; 18(3): 620-640, 2024 Mar.
Article
in En
| MEDLINE
| ID: mdl-38098337
ABSTRACT
The small GTPase Rac1 (Ras-related C3 botulinum toxin substrate 1) has been implicated in cancer progression and in the poor prognosis of various types of tumors. Rac1 SUMOylation occurs during epithelial-mesenchymal transition (EMT), and it is required for tumor cell migration and invasion. Here we identify POTEE (POTE Ankyrin domain family member E) as a novel Rac1-SUMO1 effector involved in breast cancer malignancy that controls invadopodium formation through the activation of Rac1-SUMO1. POTEE activates Rac1 in the invadopodium by recruiting TRIO-GEF (triple functional domain protein), and it induces tumor cell proliferation and metastasis in vitro and in vivo. We found that the co-localization of POTEE with Rac1 is correlated with more aggressive breast cancer subtypes. Given its role in tumor dissemination, the leading cause of cancer-related deaths, POTEE could represent a potential therapeutic target for these types of cancer.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Breast Neoplasms
/
Podosomes
Limits:
Female
/
Humans
Language:
En
Journal:
Mol Oncol
Journal subject:
BIOLOGIA MOLECULAR
/
NEOPLASIAS
Year:
2024
Document type:
Article
Affiliation country: