» Articles » PMID: 25253741

LincRNA-RoR and MiR-145 Regulate Invasion in Triple-negative Breast Cancer Via Targeting ARF6

Overview
Journal Mol Cancer Res
Specialty Cell Biology
Date 2014 Sep 26
PMID 25253741
Citations 123
Authors
Affiliations
Soon will be listed here.
Abstract

Unlabelled: Triple-negative (ER(-), HER2(-), PR(-)) breast cancer (TNBC) is an aggressive disease with a poor prognosis with no available molecularly targeted therapy. Silencing of microRNA-145 (miR-145) may be a defining marker of TNBC based on molecular profiling and deep sequencing. Therefore, the molecular mechanism behind miR-145 downregulation in TNBC was examined. Overexpression of the long intergenic noncoding RNA regulator of reprogramming, lincRNA-RoR, functions as a competitive endogenous RNA sponge in TNBC. Interestingly, lincRNA-RoR is dramatically upregulated in TNBC and in metastatic disease and knockdown restores miR-145 expression. Previous reports suggest that miR-145 has growth-suppressive activity in some breast cancers; however, these data in TNBC indicate that miR-145 does not affect proliferation or apoptosis but instead, miR-145 regulates tumor cell invasion. Investigation of miR-145-regulated pathways involved in tumor invasion revealed a novel target, the small GTPase ADP-ribosylation factor 6 (Arf6). Subsequent analysis demonstrated that ARF6, a known regulator of breast tumor cell invasion, is dramatically upregulated in TNBC and in breast tumor metastasis. Mechanistically, ARF6 regulates E-cadherin localization and affects cell-cell adhesion. These results reveal a lincRNA-RoR/miR-145/ARF6 pathway that regulates invasion in TNBCs.

Implications: The lincRNA-RoR/miR-145/ARF6 pathway is critical to TNBC metastasis and could serve as biomarkers or therapeutic targets for improving survival.

Citing Articles

LincROR promotes tumor growth of colorectal cancer through the miR-145/WNT2B/WNT10A/Wnt/β-catenin regulatory axis.

Deng L, Li S, Xie T, Zeng W, Wang Y, Shi C PLoS One. 2024; 19(11):e0312417.

PMID: 39546475 PMC: 11567539. DOI: 10.1371/journal.pone.0312417.


Deciphering the code: the pivotal role of lncRNAs in advancing TNBC therapy.

Chen W, Pan Z, Feng Z, Wang X, Zhu S Front Oncol. 2024; 14:1450980.

PMID: 39286016 PMC: 11402698. DOI: 10.3389/fonc.2024.1450980.


Assessment of Expression of lncRNAs in Autistic Patients.

Sane S, Ebrahimi V, Shirvani Farsani Z, Ghafouri-Fard S J Mol Neurosci. 2024; 74(3):81.

PMID: 39186094 DOI: 10.1007/s12031-024-02258-8.


Roles of long noncoding RNA in triple-negative breast cancer.

Das P, Siddika A, Rashel K, Auwal A, Soha K, Rahman M Cancer Med. 2023; 12(20):20365-20379.

PMID: 37795578 PMC: 10652353. DOI: 10.1002/cam4.6600.


ARF6 promotes hepatocellular carcinoma proliferation through activating STAT3 signaling.

Hu Y, Huang Y, Xie X, Li L, Zhang Y, Zhang X Cancer Cell Int. 2023; 23(1):205.

PMID: 37716993 PMC: 10505330. DOI: 10.1186/s12935-023-03053-y.


References
1.
Grossmann A, Yoo J, Clancy J, Sorensen L, Sedgwick A, Tong Z . The small GTPase ARF6 stimulates β-catenin transcriptional activity during WNT5A-mediated melanoma invasion and metastasis. Sci Signal. 2013; 6(265):ra14. PMC: 3961043. DOI: 10.1126/scisignal.2003398. View

2.
Cesana M, Cacchiarelli D, Legnini I, Santini T, Sthandier O, Chinappi M . A long noncoding RNA controls muscle differentiation by functioning as a competing endogenous RNA. Cell. 2011; 147(2):358-69. PMC: 3234495. DOI: 10.1016/j.cell.2011.09.028. View

3.
Muralidharan-Chari V, Hoover H, Clancy J, Schweitzer J, Suckow M, Schroeder V . ADP-ribosylation factor 6 regulates tumorigenic and invasive properties in vivo. Cancer Res. 2009; 69(6):2201-9. PMC: 3761373. DOI: 10.1158/0008-5472.CAN-08-1301. View

4.
Hashimoto S, Onodera Y, Hashimoto A, Tanaka M, Hamaguchi M, Yamada A . Requirement for Arf6 in breast cancer invasive activities. Proc Natl Acad Sci U S A. 2004; 101(17):6647-52. PMC: 404099. DOI: 10.1073/pnas.0401753101. View

5.
Li J, Liu S, Zhou H, Qu L, Yang J . starBase v2.0: decoding miRNA-ceRNA, miRNA-ncRNA and protein-RNA interaction networks from large-scale CLIP-Seq data. Nucleic Acids Res. 2013; 42(Database issue):D92-7. PMC: 3964941. DOI: 10.1093/nar/gkt1248. View