Melanoma incidence and mortality rates are historically higher for men than women. Although emerging studies have highlighted tumorigenic roles for the male sex hormone androgen and its receptor (AR) in melanoma, cellular and molecular mechanisms underlying these sex-associated discrepancies are poorly defined. Here, we delineate a previously undisclosed mechanism by which androgen-activated AR transcriptionally upregulates fucosyltransferase 4 (FUT4) expression, which drives melanoma invasiveness by interfering with adherens junctions (AJs).
View Article and Find Full Text PDFBrain metastasis cancer-associated fibroblasts (bmCAFs) are emerging as crucial players in the development of breast cancer brain metastasis (BCBM), but our understanding of the underlying molecular mechanisms is limited. In this study, we aim to elucidate the pathological contributions of fucosylation (the post-translational modification of proteins by the dietary sugar L-fucose) to tumor-stromal interactions that drive the development of BCBM. Here, we report that patient-derived bmCAFs secrete high levels of polio virus receptor (PVR), which enhance the invasive capacity of BC cells.
View Article and Find Full Text PDFFused in sarcoma (FUS) is a predominantly nuclear multifunctional RNA/DNA-binding protein that regulates multiple aspects of gene expression. FUS mutations are associated with familial amyotrophic lateral sclerosis (fALS) and frontotemporal lobe degeneration (FTLD) in humans. At the molecular level, the mutated FUS protein is reduced in the nucleus but accumulates in cytoplasmic granules.
View Article and Find Full Text PDFBiological inflammation induced during penetrating cortical injury can disrupt functional neuronal and glial activity within the cortex, resulting in potential recording failure of chronically implanted neural interfaces. Oligodendrocytes provide critical support for neuronal health and function through direct contact with neuronal soma and axons within the cortex. Given their fundamental role to regulate neuronal activity via myelin, coupled with their heightened vulnerability to metabolic brain injury due to high energetic demands, oligodendrocytes are hypothesized as a possible source of biological failure in declining recording performances of intracortical microelectrode devices.
View Article and Find Full Text PDFObjective: This nonresearch article describes best practices of using the simulation-based Dress Rehearsal method to prepare staff to move into a new hospital or a new space in an existing facility and to ensure the new facility is ready for use. The authors introduce a modified version of the interactive sociotechnical analysis (ISTA) model to serve as the academic foundation for the Dress Rehearsal concept.
Background: Healthcare organizations that build new medical facilities must ensure the space is ready to use and that all staff, who will deliver and support patient care, are sufficiently trained.
Introduction: Federal law requires any agency receiving federal aid to take "reasonable steps" to provide meaningful access to qualified limited English proficient (LEP) individuals. However, policies for the provision of language access services, including medical interpretation, vary substantially by state. The Latino population and the number of LEP individuals in the U.
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