medulloblastoma/protease

Japanese encephalitis virus (JEV) causes severe neurological diseases with a high fatality rate. Clinical, neurophysiological and radiological features of Japanese encephalitis JE patients showed that JEV infection resulted in widespread involvement of the nervous system, including thalamus, basal

The ubiquitin-specific protease Usp7 plays roles in multiple cellular processes through deubiquitinating and stabilizing numerous substrates, including P53, Pten and Gli. Aberrant Usp7 activity has been implicated in many disorders and tumorigenesis, making it as a potential target for therapeutic

CD95 ligand (CD95L) is a cytotoxic cytokine that induces apoptosis in susceptible target cells. Medulloblastoma is the most common non-glial intrinsic malignancy of the brain. In this study, we have studied CD95-mediated apoptosis of human medulloblastoma cell lines. We found that DAOY, MED-1 and

Deletion of 17p is the most frequent abnormality observed in central nervous system (CNS) primitive neuroectodermal tumors (PNETs), implicating the presence of a tumor suppressor gene which maps to 17p. The gene for pigment epithelium-derived factor (PEDF) has been cloned and mapped to 17p13. PEDF

The hepatocyte growth factor (HGF)/MET pathway plays a critical role in the development of the nervous system and has been implicated in medulloblastoma pathogenesis. Recent studies have shown a role for gene amplification of activators of this pathway, as well as silencing of its inhibitors in

OBJECTIVE We report a comparative study on the mRNA expression of ErbB receptor tyrosine kinases, and in particular ERBB4 transcript variants, in two common paediatric brain tumours: medulloblastoma (MB) and pilocytic astrocytoma (PA). METHODS While the conventional real-time quantitative polymerase

Ceramides are potent lipid second messengers that are involved in apoptotic and hypoxic/ischaemic neurone death. We investigated the role of mitochondria and the mitochondrial apoptosis pathway in ceramide-induced cell death using human D283 medulloblastoma cells with a reduced mitochondrial DNA

Medulloblastoma (MB) is a malignant cerebellar tumor that occurs primarily in children. The hepatocyte growth factor (HGF)/MET pathway has an established role in both normal cerebellar development as well as the development and progression of human brain tumors, including MB. To identify novel tumor

Local recurrence continues to limit survival in medulloblastoma patients, largely related to the persistence of invasive cells at the site of tumour resection and leptomeningeal dissemination. Given the relative dearth of understanding of causative mechanisms behind the invasiveness of

Insulin-like growth factor-II (IGF-II) is the major IGF in human cerebrospinal fluid (CSF), whereas IGF-I is only detectable in trace amounts. The major IGFBPs in CSF are IGFBP-2 and IGFBP-4. Normally, IGFBP-3 is a minor component in CSF of healthy subjects, but may be increased in pathological

We report here a 16-year-old male with primitive neuroectodermal tumor (PNET)-associated probable microangiopathy with multiple bone metastases. Laboratory findings excluded the possibility of amegakaryocytic or immune thrombocytopenia and/or disseminated intravascular coagulation. He was first

The protein phosphatase inhibitor okadaic acid (OA) dose-dependently induced apoptosis in CHP-100 neuroepithelioma cells when administered for 24 h at concentrations ranging from 10 - 100 nM. Apoptosis was largely, albeit not completely, dependent on cystein protease (caspase) activation. CPP32

BACKGROUND Despite effective radiotherapy for the initial stages of cancer, several studies have reported the recurrence of various cancers, including medulloblastoma. Here, we attempt to capitalize on the radiation-induced aggressive behavior of medulloblastoma cells by comparing the extracellular

We identified betulinic acid (BetA) as a new cytotoxic agent active against neuroectodermal tumor cells including neuroblastoma, medulloblastoma, glioblastoma and Ewing's sarcoma cells representing the most common solid tumors of childhood. BetA induced apoptosis independent of wild-type p53 protein