265 research outputs found

    FGFR2 amplification in colorectal adenocarcinoma

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    FGFR2 is recurrently amplified in 5% of gastric cancers and 1%–4% of breast cancers; however, this molecular alteration has never been reported in a primary colorectal cancer specimen. Preclinical studies indicate that several FGFR tyrosine-kinase inhibitors (TKIs), such as AZD4547, have in vitro activity against the FGFR2-amplified colorectal cell line, NCI-H716. The efficacy of these inhibitors is currently under investigation in clinical trials for breast and gastric cancer. Thus, better characterizing colorectal tumors for FGFR2 amplification could identify a subset of patients who may benefit from FGFR TKI therapies. Here, we describe a novel FGFR2 amplification identified by clinical next-generation sequencing in a primary colorectal cancer. Further characterization of the tumor by immunohistochemistry showed neuroendocrine differentiation, similar to the reported properties of the NCI-H716 cell line. These findings demonstrate that the spectrum of potentially clinically actionable mutations detected by targeted clinical sequencing panels is not limited to only single-nucleotide polymorphisms and insertions/deletions but also to copy-number alterations.</jats:p

    Novel Approaches to Investigate One-Carbon Metabolism and Related B-Vitamins in Blood Pressure.

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    Hypertension, a major risk factor for heart disease and stroke, is the world's leading cause of preventable, premature death. A common polymorphism (677C→T) in the gene encoding the folate metabolizing enzyme methylenetetrahydrofolate reductase (MTHFR) is associated with increased blood pressure, and there is accumulating evidence demonstrating that this phenotype can be modulated, specifically in individuals with the MTHFR 677TT genotype, by the B-vitamin riboflavin, an essential co-factor for MTHFR. The underlying mechanism that links this polymorphism, and the related gene-nutrient interaction, with hypertension is currently unknown. Previous research has shown that 5-methyltetrahydrofolate, the product of the reaction catalysed by MTHFR, appears to be a positive allosteric modulator of endothelial nitric oxide synthase (eNOS) and may thus increase the production of nitric oxide, a potent vasodilator. Blood pressure follows a circadian pattern, peaking shortly after wakening and falling during the night, a phenomenon known as 'dipping'. Any deviation from this pattern, which can only be identified using ambulatory blood pressure monitoring (ABPM), has been associated with increased cardiovascular disease (CVD) risk. This review will consider the evidence linking this polymorphism and novel gene-nutrient interaction with hypertension and the potential mechanisms that might be involved. The role of ABPM in B-vitamin research and in nutrition research generally will also be reviewed.The PhD studentship of A.M. was funded by the Northern Ireland Department for Employment and Learning. DSM Nutritional Products Ltd. partly supported project costs associated with this work. The funders had no role in the design, analysis or writing of this paper

    Mapping research across the undergraduate curriculum in UCC

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    UCC identifies itself as a research-led University and has stated the ambition to strengthen the integration of research, teaching and learning by maximising opportunities for students to participate in research programmes throughout their undergraduate studies. The number of undergraduate programmes with student-involved research from first year onwards is an important measure of this ambition. A curriculum analytics project was enacted by CIRTL staff and Academic Systems Administration to gather evidence of research-oriented and research-based teaching in undergraduate programmes offered to students via the CAO system in 2015/2016. The review showed that 55% of undergraduate programmes make explicit mention of research and inquiry in their programme learning outcomes. Analysis of module learning outcomes further showed that 45% of the reviewed programmes provide students with exposure to research-based or research-oriented teaching across the duration of their programme. The project provides an important baseline of existing research in the undergraduate curriculum, it uncovers exemplar activities across a range of subject areas and disciplines, and extends the vocabulary around research and inquiry to include discipline-specific approaches and understandings. Future work will include gathering feedback from staff and qualitative research with students to correct any inaccuracies in the data with a view to refining the search query and running a regular, more automated analysis
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