methods: we examined 170 formalin-fixed paraffin-embedded samples from esophageal squamous cell carcinoma patients. all subjects live in mazandaran province, a region with high incidence rate of esophageal cancer and have become known as the “asian esophageal cancer belt”. samples were tested for hpv-dna by my09/11 and gp5+/6+ general primers using nested pcr. results: of the 170 escc samples, ...

Notch signaling involves the processes that govern cell proliferation, cell fate decision, cell differentiation and stem cell maintenance. Due to its fundamental role in stem cells, it has been speculated during the recent years that Notch family may have critical functions in cancer stem cells or cancer cells with a stem cell phenotype, therefore playing an important role in the process of onc...

Background: Both mitochondrial dysfunction and aerobic glycolysis are signs of growing aggressive cancer. If altered metabolism of cancer cell is intended, using the glycolysis inhibitor (2-deoxyglucose (2DG)) would be a viable therapeutic method. The AMP-activated protein kinase (AMPK), as a metabolic sensor, could be activated with metformin and it can also launch a p53-dependent metabolic ch...

background: breast cancer is the most common diagnosed cancer among women in the world. snail1 plays a role in the development of the invasive phenotypes of cancer, neural cell differentiation, cell division and apoptosis in tumor cells. traces of snail1 in metastasis of breast cancer to bone are observed. the aim of this study was to investigate the effect of specific snail1 sirnas on the prol...

mono-targeting by imatinib as a main antitumor agent does not always accomplish complete cancer suppression. 2,5-dimethyl-celecoxib (dmc) is a close structural analog of the selective cyclooxygenase-2 (cox-2) inhibitor, celecoxib, that lacks cox-2 inhibitory function. in this study, we aimed to show the apoptotic effects of imatinib in combination with dmc in human ht-29 colorectal cancer (crc)...

Background and Objective: Serine and glycine are connecting lines for biosynthesis and are essential resources for synthesis of proteins, nucleic acids and lipids that are necessary for cancer cell growth. The purpose of this study was to set a comparison of serine and glycine in patients with esophageal cancer and in healthy people. Materials and Methods: 37 plasma samples were collected from...

Telomerase activation is one of the main pathways to immortalize cancer cells. In many kinds of cancer cells, this special reverse transcriptase stabilizes and elongates telomeres and prevents telomere erosion that naturally occurs in every cell division. Esophageal cancer is the fifth most frequent cause of cancer death worldwide, and is highly associated with alcohol, smoking, cultural ha...

esophageal cancer is the ninth most common malignancy.the incidence of esophageal cancer varies greatly among regions of the world and occurs at a high frequency in asia and northern iran. we report the case of an 80-year-old man with esophageal squamous cell carcinoma who initially presented with a metastatic scalp lesion. esophagoscopy was performed and a lesion was located in the mid-portion...

background- cd24 is a cell adhesion molecule that has been implicated in metastatic tumor progression cells. our aim was clarify correlation between cd24 expression and camp:cgmp ratio in murine colorectal cancer cell line (ct26) after using cholera toxin. materials and methods- the ct26 cells were cultured in microtubes for assaying camp and cgmp; also the cells were cultured in flasks for ass...

objective: today, esophageal cancer (ec) has become one of the most common cancer types in china. therefore, new drug and therapeutic strategies are urgently needed to improve postoperative survival rate of patients with ec. as a food additive, several lines of evidence have shown that citric acid can be served as glycolysis suppressor to inhibit growth of some tumor cells. however, little is k...