Publications by authors named "L Stechly"

Article Synopsis
  • Pediatric diffuse midline gliomas, particularly those with H3K27M mutations, have a poor prognosis, but recent studies show variations in their clinical behavior and biology.
  • This study aimed to analyze the molecular and chromosomal characteristics of these tumors to find new prognostic markers.
  • Results indicated that PDGFRA amplification, loss of 17p, and a complex chromosomal profile were linked to worse survival outcomes in H3K27M-mutant tumors and can be easily detected for better clinical management.
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Pancreatic cancer cells express high levels of MUC1, MUC4 and MUC16 mRNAs that encode membrane-bound mucins. These mRNAs share unusual features such as a long half-life. However, it remains unknown how mucin mRNA stability is regulated.

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Colorectal cancers (CRC) with microsatellite instability (MSI) display unique clinicopathologic features including a mucinous pattern with frequent expression of the secreted mucins MUC2 and MUC5AC. The mechanisms responsible for this altered pattern of expression remain largely unknown. We quantified DNA methylation of mucin genes (MUC2, MUC5AC, MUC4) in colonic cancers and examined the association with clinicopathological characteristics and molecular (MSI, KRAS, BRAF, and TP53 mutations) features.

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Purpose: Metastasis and drug resistance are the major limitations in the survival and management of patients with cancer. This study aimed to identify the mechanisms underlying HT29 colon cancer cell chemoresistance acquired after sequential exposure to 5-fluorouracil (5FU), a classical anticancer drug for treatment of epithelial solid tumors. We examined its clinical relevance in a cohort of patients with colon cancer with liver metastases after 5FU-based neoadjuvant chemotherapy and surgery.

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MUC1 is a transmembrane glycoprotein which is typically expressed at the apical membrane of normal epithelial cells. In cancer cells, the over-expression of MUC1 and its aberrant localization around the cell membrane and in the cytoplasm favours its interaction with different protein partners such as epidermal growth factor receptor (EGFR) and can promote tumour proliferation through the activation of oncogenic signalling pathways. Our aims were to study the mechanisms inducing MUC1 cytoplasmic localization in pancreatic cancer cells, and to decipher their impact on EGFR cellular localization and activation.

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