13 research outputs found

    Proteomics for early detection of colorectal cancer : recent updates

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    Funding: This manuscript was not funded.Peer reviewedPostprin

    The differential expression of omega-3 and omega-6 fatty acid metabolising enzymes in colorectal cancer and its prognostic significance

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    The immunohistochemistry was performed with the support of the Grampian Biorepository (www.biorepository.nhsgrampian.org/). The antibodies were developed in collaboration with Vertebrate Antibodies Ltd (www.vertebrateantibodies.com) from whom they are now available commercially.Peer reviewedPostprin

    Characterisation of the oxysterol metabolising enzyme pathway in mismatch repair proficient and deficient colorectal cancer

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    ACKNOWLEDGMENTS The immunohistochemistry was performed with the support of the Grampian Biorepository. GRANT SUPPORT Rebecca Swan was supported by the Jean Shanks Foundation. This study was supported by funding from Friends of Anchor and the Encompass kick start and SMART:Scotland award schemes of Scottish Enterprise.Peer reviewedPublisher PD

    The expression of brown fat associated proteins in colorectal cancer and the relationship of uncoupling protein 1 with prognosis

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    © 2019 UICC Funding Innovate UK, NHS Grampian endowment funds and Vertebrate Antibodies Ltd. Acknowledgements The immunohistochemistry was performed with the support of the Grampian Biorepository (www.biorepository.nhsgrampian.org/). The antibodies were developed in collaboration with Vertebrate Antibodies Ltd (www.vertebrateantibodies.com) from whom they are now available commercially.Peer reviewedPostprin

    Identification of a prognostic signature in colorectal cancer using combinatorial algorithm-driven analysis

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    Acknowledgements The colorectal cancer microarray was provided by the NHS Grampian Biorepository and the majority of the immunostaining was performed in the Grampian Biorepository laboratory (www.biorepository.nhsgrampian.org/). The antibodies were developed in collaboration with Vertebrate Antibodies Ltd (https://vertebrateantibodies.com/)Peer reviewedPublisher PD

    Induction of IL-22 protein and IL-22-producing cells in rainbow trout Oncorhynchus mykiss

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    This work was funded by the Biotechnology and Biological Sciences Research Council (BBSRC, BB/N024052/1 and BB/R008442/1). This research was also funded by the European Commission under the 7th Framework Programme for Research and Technological Development (FP7) of the European Union (grant agreement No. 311993 TARGETFISH). YH was supported by a PhD Studentship from the Ministry of Education, Republic of China (Taiwan). Tingyu Wang was supported by the Ministry of Science and Technology, Republic of China (Taiwan) (MOST 107-2917-I-564-019). Fuguo Liu was supported by a Newton International Fellowship funded by the Academy of Medical Sciences, UK (AMS, NIF004\1036). Thanks also go to Dr. Dawn Shewring for excellent technical assistance and to Dr. Alex Douglas and Ms. Anna Harte for statistical advice.Peer reviewedPublisher PD

    Immune-modulation of two BATF3 paralogues in rainbow trout Oncorhynchus mykiss 

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    This work was supported by the Royal Society of Edinburgh and the National Natural Science Foundation of China (Grant Nos., 31511130137 and 31372568). Dr Jun Wang’s visit to the Scottish Fish Immunology Research Centre was funded by the China Scholarship Council (CSC).Peer reviewedPostprin

    Colonic epithelial cathelicidin (LL-37) expression intensity is associated with progression of colorectal cancer and presence of CD8+ T cell infiltrate

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    Colorectal cancer (CRC) remains a leading cause of cancer mortality. Here, we define the colonic epithelial expression of cathelicidin (LL-37) in CRC. Cathelicidin exerts pleotropic effects including anti-microbial and immunoregulatory functions. Genetic knockout of cathelicidin led to increased size and number of colorectal tumours in the azoxymethane-induced murine model of CRC. We aimed to translate this to human disease. The expression of LL-37 in a large (n = 650) fully characterised cohort of treatment-naïve primary human colorectal tumours and 50 matched normal mucosa samples with associated clinical and pathological data (patient age, gender, tumour site, tumour stage [UICC], presence or absence of extra-mural vascular invasion, tumour differentiation, mismatch repair protein status, and survival to 18 years) was assessed by immunohistochemistry. The biological consequences of LL-37 expression on the epithelial barrier and immune cell phenotype were assessed using targeted quantitative PCR gene expression of epithelial permeability (CLDN2, CLDN4, OCLN, CDH1, and TJP1) and cytokine (IL-1β, IL-18, IL-33, IL-10, IL-22, and IL-27) genes in a human colon organoid model, and CD3+ , CD4+ , and CD8+ lymphocyte phenotyping by immunohistochemistry, respectively. Our data reveal that loss of cathelicidin is associated with human CRC progression, with a switch in expression intensity an early feature of CRC. LL-37 expression intensity is associated with CD8+ T cell infiltrate, influenced by tumour characteristics including mismatch repair protein status. There was no effect on epithelial barrier gene expression. These data offer novel insights into the contribution of LL-37 to the pathogenesis of CRC and as a therapeutic molecule

    Characterisation and analysis of IFN-gamma producing cells in rainbow trout Oncorhynchus mykiss

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    11 Pág. Centro de Investigación en Sanidad Animal (CISA)IFN-γ is one of the key cytokines involved in Th1 immune responses. It is produced mainly by T cells and NK cells, which drive both innate and adaptive responses to promote protection against infections. IFN-γ orthologues have been discovered to be functionally conserved in fish, suggesting that type I immunity is present in early vertebrates. However, few studies have looked at IFN-γ protein expression in fish and its role in cell mediated immunity due to a lack of relevant tools. In this study, four monoclonal antibodies (mAbs) V27, N2, VAB3 and V91 raised against short salmonid IFN-γ peptides were developed and characterised to monitor IFN-γ expression. The results show that the IFN-γ mAbs specifically react to their peptide immunogens, recognise E. coli produced recombinant IFN-γ protein and rainbow trout IFN-γ produced in transfected HEK 293 cells. The mAb VAB3 was used further, to detect IFN-γ at the cellular level after in vitro and in vivo stimulation. In flow cytometry, a basal level of 3-5% IFN-γ secreting cells were detected in peripheral blood leucocytes (PBL), which increased significantly when stimulated in vitro with PAMPs (Aeromonas salmonicida bacterin), a mitogen (PHA) and recombinant cytokine (IL-2). Similarly, after injection of live bacteria (Aeromonas salmonicida) or poly I:C the number of IFN-γ+ cells increased in the lymphoid population of PBL, as well as in the myeloid population after infection, with the myeloid cells increasing substantially after both treatments. Immunohistochemistry was used to visualise the IFN-γ+ cells in spleen and head kidney following vaccination, which increased in intensity of staining and number relative to tissue from saline-injected control fish. These results show that several types of cells can produce IFN-γ in trout, and that they increase following infection or vaccination, and likely contribute to immune protection. Hence monitoring IFN-γ producing cells/protein secretion may be an important means to assess the effectiveness of Th1 responses and cell mediated immunity in fish.This research was funded by the European Commission under the 7th Framework Programme for Research and Technological Development (FP7) of the European Union (grant agreement No. 311993 TARGETFISH). YH was supported by a PhD Studentship from the Ministry of Education, Republic of China. TW was supported by the MASTS pooling initiative ( The Marine Alliance for Science and Technology for Scotland). MASTS is funded by the Scottish Funding Council (grant reference number HR09011) and contributing institutions.Peer reviewe
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