Targeting the interaction between RNA-binding protein HuR and FOXQ1 suppresses breast cancer invasion and metastasis.
Animals
Antineoplastic Agents
/ pharmacology
Breast Neoplasms
/ drug therapy
Cell Line, Tumor
Cell Movement
/ drug effects
Cell Proliferation
/ drug effects
ELAV-Like Protein 1
/ antagonists & inhibitors
Female
Forkhead Transcription Factors
/ genetics
Humans
Lung Neoplasms
/ genetics
Mice, Inbred BALB C
Mice, Nude
Middle Aged
Neoplasm Invasiveness
Signal Transduction
Tumor Burden
/ drug effects
Xenograft Model Antitumor Assays
Journal
Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179
Informations de publication
Date de publication:
24 04 2020
24 04 2020
Historique:
received:
24
04
2019
accepted:
07
04
2020
entrez:
26
4
2020
pubmed:
26
4
2020
medline:
16
6
2021
Statut:
epublish
Résumé
Patients diagnosed with metastatic breast cancer have a dismal 5-year survival rate of only 24%. The RNA-binding protein Hu antigen R (HuR) is upregulated in breast cancer, and elevated cytoplasmic HuR correlates with high-grade tumors and poor clinical outcome of breast cancer. HuR promotes tumorigenesis by regulating numerous proto-oncogenes, growth factors, and cytokines that support major tumor hallmarks including invasion and metastasis. Here, we report a HuR inhibitor KH-3, which potently suppresses breast cancer cell growth and invasion. Furthermore, KH-3 inhibits breast cancer experimental lung metastasis, improves mouse survival, and reduces orthotopic tumor growth. Mechanistically, we identify FOXQ1 as a direct target of HuR. KH-3 disrupts HuR-FOXQ1 mRNA interaction, leading to inhibition of breast cancer invasion. Our study suggests that inhibiting HuR is a promising therapeutic strategy for lethal metastatic breast cancer.
Identifiants
pubmed: 32332873
doi: 10.1038/s42003-020-0933-1
pii: 10.1038/s42003-020-0933-1
pmc: PMC7181695
doi:
Substances chimiques
Antineoplastic Agents
0
ELAV-Like Protein 1
0
ELAVL1 protein, human
0
FOXQ1 protein, human
0
Forkhead Transcription Factors
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
193Subventions
Organisme : NIGMS NIH HHS
ID : P20 GM103638
Pays : United States
Organisme : NCI NIH HHS
ID : P30 CA168524
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA191785
Pays : United States
Organisme : NCI NIH HHS
ID : R01 CA243445
Pays : United States
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