Publications by authors named "Carmen Metzger"

Gallbladder cancer (GBC) presents as an aggressive malignancy with poor patient outcome. Like other epithelial cancers, the mechanisms of GBC cancer progression remain vague and efforts in finding targeted therapies fall below expectations. This study combined proteomic analysis of formalin-fixed paraffin-embedded (FFPE) GBC samples, functional and molecular characterization of potential oncogenes and identification of potential therapeutic strategies for GBC.

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  • People with primary sclerosing cholangitis (PSC) are at a significant risk of developing biliary tract cancer (BTC), and this study used whole-exome sequencing to analyze the genetic changes in BTC associated with PSC.
  • The researchers identified 53 candidate cancer genes, including some that had not been previously linked to BTC, while also recognizing genes known to be involved in other cancers.
  • Their findings reveal specific and common genetic alterations that could improve understanding of BTC development in PSC, paving the way for personalized treatment strategies.
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Background: Vascular endothelial growth factor (VEGF) affects carcinogenesis of the upper aerodigestive tract. Cigarette smoke (CSE) influences VEGF-gene regulation. The single nucleotide polymorphism +405 G/C (SNP +405 G/C) and the transcriptional factor (TF) myeloid zinc finger 1 (MZF1) are endogenic regulators of the VEGFpromoter as the polymorphism 405 potentially affects binding of the transcription factor MZF1.

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Background: The vascular endothelial growth factor (VEGF) is involved in tumorigenesis of the upper aerodigestive tract. Different single nucleotide polymorphisms (SNPs) turn the regulation of the VEGF gene into a highly complex process, particularly influenced by exogenic factors like cigarette smoke (CSE). Analysis of the SNP- and CSE-dependent VEGF-gene regulation can help to improve antiangiogenic therapies and prognosis.

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Superoxide dismutases (SOD) are a group of enzymes that catalyze the dismutation of superoxide (O) radicals into molecular oxygen (O) and HO as a first line of defense against oxidative stress. Here, we show that glycine-functionalized copper(ii) hydroxide nanoparticles (Gly-Cu(OH) NPs) are functional SOD mimics, whereas bulk Cu(OH) is insoluble in water and catalytically inactive. In contrast, Gly-Cu(OH) NPs form water-dispersible mesocrystals with a SOD-like activity that is larger than that of their natural CuZn enzyme counterpart.

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Overexpression of the vascular endothelial growth factor (VEGF) gene has been associated with advanced stage and poor survival in several cancers. The majority of disease-associated VEGF-single nucleotide polymorphisms (SNPs) locate within regulatory regions. Therefore, an influence of SNPs located in the promoter/5'-untranslated region (5'UTR) on transcription factor binding (TFB) and gene expression seems feasible.

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Smoking is one of the main risk factors for the development of oral squamous cell carcinoma (OSCC). Smoking may affect single-nucleotide polymorphism (SNP)-dependent vascular endothelial growth factor (VEGF)-induced angiogenic activity. Therefore, we systematically reviewed the published VEGF-SNP genotype data of OSCC patients and healthy individuals and performed a meta-analysis comparing the VEGF-SNP genotypes of smoking and non-smoking patients in association with OSCC incidence.

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  • * In traditional GLC with silicone, heavier deuterated compounds tend to elute earlier due to the inverse isotope effect, primarily influenced by van der Waals forces.
  • * However, when ionic liquids are used as the stationary phase, these interactions shift, resulting in a marginal inverse isotope effect, and even a normal isotope effect when the most polar IL is used.
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