Aggressive solid malignancies, including pancreatic ductal adenocarcinoma (PDAC), can exploit lysosomal exocytosis to modify the tumor microenvironment, enhance motility, and promote invasiveness. However, the molecular pathways through which lysosomal functions are co-opted in malignant cells remain poorly understood. In this study, we demonstrate that inositol polyphosphate 4-phosphatase, Type II (INPP4B) overexpression in PDAC is associated with PDAC progression.
View Article and Find Full Text PDFThe epidermal growth factor (EGF) receptor (EGFR) controls many aspects of cell physiology. EGF binding to EGFR elicits the membrane recruitment and activation of phosphatidylinositol-3-kinase, leading to Akt phosphorylation and activation. Concomitantly, EGFR is recruited to clathrin-coated pits (CCPs), eventually leading to receptor endocytosis.
View Article and Find Full Text PDFLysophosphatidic acid (LPA) is a small signaling phospholipid that mediates diverse functions including cell proliferation, migration, and survival by engaging LPA-agonized G-protein coupled receptors. Autophagy is a survival mechanism in response to nutrient depletion or organellar damage that encloses idle or damaged organelles within autophagosomes that are then delivered to lysosomes for degradation. However, the relationship between LPA and autophagy is largely unknown.
View Article and Find Full Text PDFThalassaemia major (TM) is a hereditary blood disease characterised by reduced or absent production of beta globin chains. Erythrocyte transfusions are given to raise the haemoglobin level in patients with thalassaemia major. However, transfusions have been related to increased risk of iron overload and tissue damage related to excess iron.
View Article and Find Full Text PDFBackground: Autosomal dominant polycystic kidney disease (ADPKD) is characterized by multiple, large renal cysts and impaired kidney function. Although the reason for the development of kidney cysts is unknown, ADPKD is associated with cell cycle arrest and abundant apoptosis of renal tubular epithelial cells.
Aims: We asked whether serum-soluble TNF-related apoptosis-inducing ligand (sTRAIL) might underlie ADPKD.
The influence of biomarkers on carcinogenesis has been investigated extensively. Whether they promote carcinogenesis or work against cancer development remains to be elucidated. To the best of our knowledge, the novel molecule cluster of differentiation 200 (CD200) has not been studied on human breast cancer subjects.
View Article and Find Full Text PDFThe purpose of this study was to determine the levels of sleep problems, anxiety, depression and fatigue in family members of intensive care patients in Turkey and factors affecting these complaints. This cross-sectional study was carried out with 350 first-degree relatives of intensive care patients at a university and state hospital. Data were collected between 5 January and 30 May 2014 using a personal information form, the Visual Analogue Scale for Fatigue, the Hospital Anxiety and Depression Scale and the modified Post Sleep Inventory.
View Article and Find Full Text PDFBiol Trace Elem Res
March 2016
The goal of the present study was to determine the levels of minerals in chronically transfused thalassaemic patients living in Antalya, Turkey and to determine mineral levels in groups using different iron chelators. Three iron chelators deferoxamine, deferiprone and deferasirox have been used to remove iron from patients' tissues. There were contradictory results in the literature about minerals including selenium, zinc, copper, and magnesium in thalassaemia major patients.
View Article and Find Full Text PDFThe molecular mechanisms and pathogenesis of chronic hepatitis C (CHC) infection are unclear. Innate immune cells such as natural killer (NK) cells and dendritic cells are responsible from molecular mechanism of CHC. NK cell cytotoxicity such as TRAIL expression is important pathway for viral clearance.
View Article and Find Full Text PDFBackground: CD200 is a novel immunosuppressive molecule, existing both as cell membrane bound and as a soluble form in serum (sCD200), which acts to regulate inflammatory and acquired immune responses. Recently, our study group showed that sCD200 was found in serum and blister fluid in a patient with bullous pemphigoid and that anti-IgE therapy impacted those levels. We therefore planned this study to evaluate the soluble serum CD200 levels of bullous pemphigoid patients and compare it with that of healthy controls.
View Article and Find Full Text PDFHerein, we report a case of a man with pruritic bullous pemphigoid (BP) and very high levels of total IgE (5000 kU/L) who was refractory to standard aggressive immunosuppressive regimens (systemic steroids, daily cyclophosphamide) for BP but responded rapidly to systemic anti-IgE (omalizumab). Our patient is a 28 year-old white male. On admission 70% of his body surface area was involved with large bullae overlying urticarial plaques, involving his upper and lower extremities, chest, and abdomen.
View Article and Find Full Text PDFBackground: Soluble CD200 (sCD200) is a novel immuno-effective molecule, which acts to regulate inflammatory and acquired immune responses. Recently, our study group showed that sCD200 was present in serum and blister fluid in a patient with bullous pemphigoid and a patient with toxic epidermal necrolysis. We therefore planned this study to evaluate the sCD200 levels of autoimmune and inflammatory skin disorder patients and to compare them with that of healthy controls.
View Article and Find Full Text PDF