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• W3197107029 abstract "Pancreatic ductal adenocarcinoma (PDA) is an aggressive metastatic cancer with a very low survival rate. This tumor is hypovascularized and characterized by severe hypoxic regions, yet these regions are not impeded by the oxidative stress in their microenvironment. PDA's high resilience raises the need to find new effective therapeutic targets. This study investigated the suitability of methionine aminopeptidase 2 (MetAp2), a metallopeptidase known to play an important role in tumor progression, as a new target for treating PDA. In our examination of patient-derived PDA tissues, we found that MetAp2 is highly expressed in metastatic regions compared with primary sites. At the cellular level, we found that the basal expression levels of MetAp2 in pancreatic cancer cells were higher than its levels in endothelial cells. Pancreatic cancer cells showed a significant suppression of proliferation in a dose-dependent manner upon exposure to TNP-470, a selective MetAp2 inhibitor. In addition, a significant reduction in glutathione (GSH) levels - known for its importance in alleviating oxidative stress - was detected in all treated cells, suggesting a possible anti-cancer activity mechanism that would be feasible for treating highly hypoxic PDA tumors. Furthermore, in an orthotopic pancreatic cancer murine model, systemic oral treatment with a MetAp2 inhibitor significantly reduced tumors' growth. Taken together, our findings indicate that MetAp2 enhances tumor sensitivity to hypoxia and may provide an effective target for treating hypoxic tumors with high expression levels of MetAp2." @default.
• W3197107029 created "2021-09-13" @default.
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• W3197107029 date "2021-09-02" @default.
• W3197107029 modified "2023-10-17" @default.
• W3197107029 title "Methionine Aminopeptidase 2 as a Potential Target in Pancreatic Ductal Adenocarcinoma" @default.
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• W3197107029 doi "https://doi.org/10.21203/rs.3.rs-857731/v1" @default.
• W3197107029 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36247237" @default.
• W3197107029 hasPublicationYear "2021" @default.
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