Nanoliposomal Delivery of MicroRNA-203 Suppresses Migration of Triple-Negative Breast Cancer Through Distinct Target Suppression
Overview
Affiliations
Triple-negative breast cancers affect thousands of women in the United States and disproportionately drive mortality from breast cancer. MicroRNAs are small, non-coding RNAs that negatively regulate gene expression post-transcriptionally by inhibiting target mRNA translation or by promoting mRNA degradation. We have identified that miRNA-203, silenced by epithelial-mesenchymal transition (EMT), is a tumor suppressor and can promote differentiation of breast cancer stem cells. In this study, we tested the ability of liposomal delivery of miR-203 to reverse aspects of breast cancer pathogenesis using breast cancer and EMT cell lines. We show that translationally relevant methods for increasing miR-203 abundance within a target tissue affects cellular properties associated with cancer progression. While stable miR-203 expression suppresses LASP1 and survivin, nanoliposomal delivery suppresses BMI1, indicating that suppression of distinct mRNA target profiles can lead to loss of cancer cell migration.
MEF2C and miR-194-5p: New Players in Triple Negative Breast Cancer Tumorigenesis.
Caetano S, Garcia A, Figueira I, Brito M Int J Mol Sci. 2023; 24(18).
PMID: 37762600 PMC: 10531597. DOI: 10.3390/ijms241814297.
Expression and Regulatory Mechanisms of MicroRNA in Cholesteatoma: A Systematic Review.
Dzaman K, Czerwaty K, Reichert T, Szczepanski M, Ludwig N Int J Mol Sci. 2023; 24(15).
PMID: 37569652 PMC: 10418341. DOI: 10.3390/ijms241512277.