Cancer cells develop resistance to therapy by adapting to hypoxic microenvironments, and hypoxia-inducible factors (HIFs) play crucial roles in this process. We investigated the roles of HIF-1α and HIF-2α in cancer cell death induced by tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) using human pancreatic cancer cell lines. siRNA-mediated knockdown of HIF-2α, but not HIF-...

Pancreatic cancer (PaCa) is the fourth leading cause of cancer deaths in Western societies, with pancreatic ductal adenocarcinomas (PDACs) accounting for >90% of such cases. PDAC is a heterogeneous disease that includes a subset showing overexpression of the secreted glycoprotein Dickkopf-related protein 3 (Dkk-3), a protein shown to be downregula...

BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor survival rates. The presence of cancer stem-like cells (CSCs) is believed to be among the underlying reasons for the aggressiveness of PDAC, which contributes to chemoresistance and recurrence. However, the mechanisms that induce chemoresistance and inhibit apoptosis remain largely unknown. METHODS We used se...

A newly identified human locus on chromosome 15 was recently associated with zinc accumulation. Based on a prior report of a threefold difference in zinc accumulation between fumble(1) heterozygous mutants and control fly strains, it was suggested that phosphopantothenoylcysteine decarboxylase might affect zinc status through its effects on vitamin B5 (pantothenate) metabolism. We report here t...

Pantothenic acid, a portion of the coenzyme A molecule (l), must be supplied in the diet for normal acetylation of p-aminobenzoic acid (PAB) (2) and of sulfanilamide (3) by the rat. Only at certain test levels of PAB, however, is pantothenate deficiency reflected by decreased acetylation (4). The present communication extends the study of the relation between acetylation and size of dose over a...

The aim of this study was to evaluate the effects and molecular mechanisms of everolimus on Panc-1 human pancreatic cancer cells. Panc-1 human pancreatic cancer cells were treated with everolimus (10 μg/ml) at selected time points (6, 12 and 24 h). Cell proliferation and apoptosis were evaluated by MTT and flow cytometric analyses. The glycolytic activity was determined by measuring the activit...

O uso de plantas medicinais no tratamento e na cura enfermidades remonta à antiguidade surgiu com a própria humanidade. Planta medicinal é toda planta que exerce alguma ação terapêutica sobre os organismos vivos. As alimentícias não-convencionais (PANC) são comumente chamadas “daninhas”, pois florescem entre as cultivadas. PANC espécies grande importância ecológica econômica, sendo várias alime...

Hallervorden-Spatz syndrome is a disorder characterized by dystonia, parkinsonism, and iron accumulation in the brain. The disease is caused by mutations in gene encoding pantothenate kinase 2 (PANK2) and patients have pantothenate kinase-associated neurodegeneration. We present an 8-year-old boy with progressive muscle dystonia, neuroregression, frequent fall and multiple injury marks of diffe...

9-years-old girl, previously healthy, presented with progressive dystonia. Clinically, she have dysarthria and spastic gait. Her parents are first-degree cousins. She have a paternal cousins who have a similar symptoms started 3 years ago, currently he is bed ridden. Notice: Authors are encouraged to submit quizzes for possible publication in the Journal. These may be in any field of Clinical N...

Traditional therapies for pancreatic cancer are usually expensive and likely to cause side effects, and most patients have the risk of recurrence and suffering pain. Here, we investigated combination treatment of epigallocatechin-3-gallate (EGCG) and non-invasive low strength pulsed electric field (PEF) on the human pancreatic cell line PANC-1. Cells were cultured in various concentrations of E...