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Androutsopoulou, T.

Publications and source records attributed to Androutsopoulou, T..

2 recordsLinked to original sources

Poly-unsaturated Fatty Acids from Thamnidium elegans and Mortierella alpina Suppress Prostate Cancer Cells Proliferation and Migration

Thamnidium elegans and Mortierella alpina are two oleaginous fungi that belong to Mucoromycota that synthesize polyunsaturated fatty acids which are credited with multiple health benefits and possible anticancer properties. These fungi were cultivated on culture media with glucose or glycerol as a carbon source. After extracting the lipids, we transformed them into fatty acid lithium salts (FALS), which are water-soluble and absorbable mammalian cells, including DU-145 and PC-3 cancer cells. The two cell lines, both long-established prostate cancer models, were treated with FALS and indicated increased susceptibility to the lipid derivatives. The viability and proliferation rates were significantly reduced, as well as their migratory capabilities, which were significantly impaired compared to olive-oil-derived FALS, which were used as a control substance. We conclude that the FALS derivatives of microbial lipids from these organisms exhibit anticancer effects by suppressing the proliferation and migration of human prostate cancer cell lines.

cancer biology↗

The ERK1/2-Elk1, JNK-cJun, and JAK-STAT Transcriptional Axes as Potential Bortezomib Resistance Mediators in Prostate Cancer

The effectiveness of proteasome inhibitors against solid tumors is limited as the emergence of resistance is rapid. Although many mechanisms have been proposed and verified, no definite answer has been given, highlighting the complexity of the resistant phenotype. In this study, a Bortezomib-resistant prostate cancer cell line is created, and a broad-spectrum signaling pathway analysis is performed to identify differences and adaptations the resistant cells exhibit. Our findings highlight the upregulation and activation of Nf-{kappa}B, STAT3, cJun, and Elk1 transcription factors in the resistant cells and the subsequent evasion of apoptosis and induction of autophagy, which is constantly activated and substitutes the role of the ubiquitin-proteasome system (UPS). Additionally, assessment of the intracellular reactive oxygen species in resistant cells confirms their downregulation, which is theorized to be a consequence of metabolic changes, increased autophagic flux, and antioxidative enzyme action. The results of this study highlight the potential therapeutic targeting of key kinases and transcription factors, participating in the main signaling pathways and gene regulation of Bortezomib-resistant cells, that could re-sensitize the cells to proteasome inhibitors, thus surpassing the current limitations.

cancer biology↗