miR-31 in cancer: Location matters

synthetic canonical mir-31 , a pleiotropically acting anti-metastasis mir-based therapeutic in invasive breast cancer

Inhibition of breast cancer metastasis by co-transfection of miR-31/193b-mimics

Objective(s): Various studies have been conducted to reduce the metastatic behavior of cancerous cells. In this regard, ectopic expression of anti-metastatic microRNAs by miR-mimic and miR-restoration-based therapies could bring new insights to the field. In the present study, the consequences of co-transfecting breast cancer cell lines with miR-193b and miR-31 were investigated via invasion an...

A Pleiotropically Acting MicroRNA, miR-31, Inhibits Breast Cancer Metastasis

Scott Valastyan,1,2 Ferenc Reinhardt,1 Nathan Benaich,1,3 Diana Calogrias,4 Attila M. Szász,4 Zhigang C. Wang,5,6 Jane E. Brock,4 Andrea L. Richardson,4 and Robert A. Weinberg1,2,7,* 1Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA 2Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 3Department of Biology, Williams College, Williamstown,...

Dysregulation of miR-31 and miR-21 induced by zinc deficiency promotes esophageal cancer.

Zinc deficiency (ZD) increases the risk of esophageal squamous cell carcinoma (ESCC). In a rat model, chronic ZD induces an inflammatory gene signature that fuels ESCC development. microRNAs regulate gene expression and are aberrantly expressed in cancers. Here we investigated whether chronic ZD (23 weeks) also induces a protumorigenic microRNA signature. Using the nanoString technology, we eva...

miR-31 affects colorectal cancer cells by inhibiting autophagy in cancer-associated fibroblasts

Autophagy is a double-edged sword in tumor development. Recent studies have found that miRNAs have an inhibitory effect on the regulation of autophagy. It has been reported that miR-31 plays an important role in the development of colorectal cancer. However, what role miR-31 plays in colorectal cancer-associated fibroblasts (CAFs) has not been determined. In this study, we confirmed that the ex...