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Full-Text Articles in Life Sciences
Cellular Glycosphingolipid Imbalance Modulates Emt In Cancer Cells, Laura E. Clark, Amanda Dickinson, Santiago Lima
Cellular Glycosphingolipid Imbalance Modulates Emt In Cancer Cells, Laura E. Clark, Amanda Dickinson, Santiago Lima
Undergraduate Research Posters
Sphingolipids are key components of the plasma membrane and are regulators of complex biological processes often altered in cancer cells. In human tumors, genes of key enzymes that regulate levels of glucosylceramide and lactosylceramide are often amplified. However, it is unknown why these traits are positively selected in transformed cells. In this work, we used CRISPR-Cas9 to knockout two key enzymes amplified in tumors in HeLa and H1703 tumor-derived cell-lines. As expected, the knockout lines had dramatic accumulation of GlcCer and LacCer. However, unexpectedly, they showed significantly decreased in-vitro wound-healing capacity and an almost complete loss of in-vitro extra-cellular matrix …
Observing Ceramide Pathway With Ferroptosis Via Mia Paca-2 Cell Treatment With Rsl3, Tazrin Rahman
Observing Ceramide Pathway With Ferroptosis Via Mia Paca-2 Cell Treatment With Rsl3, Tazrin Rahman
AUCTUS: The Journal of Undergraduate Research and Creative Scholarship
Composed of sphingosine and a fatty acid, ceramides are lipid molecules that serve as key metabolic signaling molecules of a sphingolipid pathway. While it acts as a precursor of complex sphingolipids, inducing ceramide generation can cause cell stress leading to subsequent cell death via apoptosis, necrosis, and even mitophagy. With regards to cell death specifically, a novel form of regulated cell death, ferroptosis, has recently been recognized of necrotic nature. Its unique morphological features and distinct properties have been observed over the last several decades; however, the molecular features were not identifiable as pure evidence of cell death, until recently …