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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Targeting Sphingosine Kinase 2 as a Treatment for CholangiocarcinomaStillman, Anthony D 01 January 2019 (has links)
Cholangiocarcinoma (CCA) has a high mortality rate and its occurrence is rising. This increase prompts the need for improved CCA treatments. Studies have suggested that CCA is highly reliant on the sphingosine-1-phosphate-receptor-2 (S1PR2) and sphingosine kinase 2 (SphK2). Recently, a competitive SphK2 inhibitor, ABC294640, has been approved for clinical trial. ABC294640 has the potential to treat CCA, which is support by a phase I clinical study that was able to temporarily treat a patient suffering from metastasized CCA with ABC294640. To determine the viability of ABC294640 as a treatment for CCA, this study focused on determining the effects of ABC294640 on rat CCA cell lines. We found that ABC294640 inhibited the growth and migration of CCA and CAFs cells. The growth and count of 3-D organotypic co-culture of CCA and CAFs, which forms the “duct-like” structures, were reduced by ABC294640. The potential of inhibiting SphK2 as a treatment for CCA is supported by our finding of increased expression of S1PR2 and SphK2 in CCA patient liver samples. In conclusion, ABC294640 represents a potential therapeutic agent for CCA.
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