Title:Unveiling Role of MicroRNAs in Metastasizing Triple Negative Breast
Cancer: From Therapeutics to Delivery
Volume: 24
Issue: 6
Author(s): Acharya Balkrishna, Rashmi Mittal and Vedpriya Arya*
Affiliation:
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
Keywords:
miRNAs, metastasis, prognosis, therapeutics, delivery, stem cells.
Abstract: Triple negative breast cancers are malignant, heterogeneous tumors with high histological
grades, increased reoccurrence, and cancer-related death rates. TNBC metastasis to the brain,
lungs, liver, and lymph nodes is a complex process regulated by epithelial to mesenchymal transition,
intravasation, extravasation, stem cell niche, and migration. Aberrant expression of miRNAs,
also known as a transcriptional regulators of genes, may function as oncogenes or tumor suppressors.
In this review, we systematically elucidated the biogenesis and tumor suppressor role of miRNA
in targeting distant metastasis of TNBC cells and the above-mentioned underlying mechanisms
involved in complicating the disease. Apart from their therapeutic implications, the emerging roles
of miRNAs as prognostic markers have also been discussed. To overcome delivery bottlenecks,
RNA nanoparticles, nano-diamonds, exosomes, and mesoporous silica nanoparticle-mediated delivery
of miRNAs have been contemplated. Altogether, the present review article uncovers the potential
role of miRNA in antagonizing distant metastasis of TNBC cells, and highlights their clinical
significance as prognostic markers and possible drug delivery strategies to enhance the likely outcome
of miRNA-based therapy against the disease.