2016

10742 bookmarks
Custom sorting
MICROPLASTICS FOUND WHERE?! - The HighWire
MICROPLASTICS FOUND WHERE?! - The HighWire
The health effects of microplastics on the human body are taking center stage as water bottle use, billions of masks and PPE from the COVID response have flooded our environment with unprecedented contamination. Newly published studies show that microplastics may be contributing to blood clots and other health issues. Even more shocking- another study found […]
·thehighwire.com·
MICROPLASTICS FOUND WHERE?! - The HighWire
The role of melatonin on miRNAs modulation in triple-negative breast cancer cells
The role of melatonin on miRNAs modulation in triple-negative breast cancer cells
Melatonin, a hormone secreted by pineal gland, exerts antimetastatic effects by reducing tumor cell proliferation, migration and invasion. MicroRNAs (miRNAs) are small, non-coding RNAs that play a crucial role in regulation of gene expression and biological processes of the cells. Herein, we search for a link between the tumor/metastatic-suppressive actions of melatonin and miRNA expression in triple-negative breast cancer cells. We demonstrated that melatonin exerts its anti-tumor actions by reducing proliferation, migration and c-Myc expression of triple negative breast cancer cells. By using Taqman-based assays, we analyzed the expression levels of a set of miRNAs following melatonin treatment of triple negative breast cancer cells and we identified 17 differentially expressed miRNAs, 6 down-regulated and 11 up-regulated. We focused on the anti-metastatic miR-148b and the oncogenic miR-210 both up-regulated by melatonin treatment and studied the effect of their modulation on melatonin-mediated impairment of tumor progression. Surprisingly, when miR-148b or miR-210 were depleted in triple-negative breast cancer cells, using a specific miR-148b sponge or anti-miR-210, melatonin effects on migration inhibition and c-myc downregulation were still visible suggesting that the increase of miR-148b and miR-210 expression observed following melatonin treatment was not required for the efficacy of melatonin action. Nevertheless, ours results suggest that melatonin exhibit a compound for metastatic trait inhibition, especially in MDA-MB-231 breast cancer cells even if a direct link between modulation of expression of certain proteins or miRNAs and melatonin effects has still to be established.
·journals.plos.org·
The role of melatonin on miRNAs modulation in triple-negative breast cancer cells
Brain Regeneration[Title] - PMC - NCBI
Brain Regeneration[Title] - PMC - NCBI
Your access to the NCBI website at www.ncbi.nlm.nih.gov has been temporarily blocked due to a possible misuse/abuse situation involving your site. This is not an indication of a security issue such as a virus or attack. It could be something as simple as a run away script or learning how to better use E-utilities, http://www.ncbi.nlm.nih.gov/books/NBK25497/, for more efficient work such that your work does not impact the ability of other researchers to also use our site. To restore access and understand how to better interact with our site to avoid this in the future, please have your system administrator contact info@ncbi.nlm.nih.gov.
·ncbi.nlm.nih.gov·
Brain Regeneration[Title] - PMC - NCBI