Publications by authors named "S E Theocharis"

The role of microbial terroir for enhancing the geographical origin of wines is well appreciated. Still, we lack a good understanding of the assembly mechanisms driving carposphere grapevine microbiota. We investigated the role of cultivar, vintage, terroir units (TUs) and vineyard geographic location on the composition of the carpospheric microbiota of three important cultivars in the viticultural zone of Drama, Greece using amplicon sequencing.

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  • The study investigates the expression of Erythropoietin-producing hepatocellular (EPH) receptors in neuroendocrine neoplasms (NENs), which are significant in various biological processes including tumor growth and spread.
  • Immunohistochemical analysis of tumor samples from 30 patients showed varying levels of expression for different EPH subtypes, with high positivity rates for EPH-A4 and EPH-A5.
  • The findings suggest that EPH receptors could play a crucial role in the development and treatment of NENs, highlighting their potential as targets for new therapeutic strategies.
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Extrachromosomal circular DNA (eccDNA) is a form of a circular double-stranded DNA that exists independently of conventional chromosomes. eccDNA exhibits a broad and random distribution across eukaryotic cells and has been associated with tumor-related properties due to its ability to harbor the complete gene information of oncogenes. The complex and multifaceted mechanisms underlying eccDNA formation include pathways such as DNA damage repair, breakage-fusion-bridge (BFB) mechanisms, chromothripsis, and cell apoptosis.

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Uveal melanomas (UMs) represent rare malignant tumors associated with grim prognosis for the majority of patients. DAXX (Death Domain-Associated Protein), HJURP (Holliday Junction Recognition Protein) and CENPA (Centromere Protein A) proteins are implicated in epigenetic mechanisms, now in the spotlight of cancer research to better understand the molecular background of tumorigenesis. Herein, we investigated their expression in UM tissues using immunohistochemistry and explored possible correlations with a multitude of clinicopathological and survival parameters.

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Article Synopsis
  • Resistin is a special protein that helps control how our body responds to insulin and fights inflammation, but too much of it can be linked to health problems like obesity and diseases like diabetes and cancer.
  • High levels of resistin have been connected to different types of cancer, especially colorectal cancer, which has several factors like chronic inflammation and obesity that can increase its risk.
  • Researchers are studying how resistin levels affect the risk of cancer and how well chemotherapy works, and they are looking at certain gene changes related to resistin to see if they can help predict cancer outcomes.
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