" /> Glioma susceptibility 1 - CISMeF





Preferred Label : Glioma susceptibility 1;

Symbol : GLM1;

CISMeF acronym : GBM; GLM; GLM1;

Type : Phenotype, molecular basis known;

Included titles and symbols : Glioma of brain, familial; Glioblastoma multiforme; Astrocytoma; Oligodendroglioma; Ependymoma; Subependymoma; GLM; GBM;

Description : Gliomas are central nervous system neoplasms derived from glial cells and comprise astrocytomas, glioblastoma multiforme, oligodendrogliomas, ependymomas, and subependymomas. Glial cells can show various degrees of differentiation even within the same tumor (summary by Kyritsis et al., 2010). Ependymomas are rare glial tumors of the brain and spinal cord (Yokota et al., 2003). Subependymomas are unusual tumors believed to arise from the bipotential subependymal cell, which normally differentiates into either ependymal cells or astrocytes. They were characterized as a distinct entity by Scheinker (1945). They tend to be slow-growing, noninvasive, and located in the ventricular system, septum pellucidum, cerebral aqueduct, or proximal spinal cord (summary by Ryken et al., 1994). Gliomas are known to occur in association with several other well-defined hereditary tumor syndromes such as mismatch repair cancer syndrome (276300), melanoma-astrocytoma syndrome (155755), neurofibromatosis-1 (NF1; 162200) and NF2 (101000), and tuberous sclerosis (TSC1; 191100). Familial clustering of gliomas may occur in the absence of these tumor syndromes, however. - Genetic Heterogeneity of Susceptibility to Glioma Germline mutations predisposing to glioma have also been identified in the PTEN (601728) gene on chromosome 10q23.31 (GLM2; 613028) and in the;

Inheritance : Autosomal dominant; Somatic mutation;

Molecular basis : Susceptibility conferred by mutation in the tumor protein p53 gene (TP53, 191170.0042);

Neoplasia : Astrocytomas; Glioblastoma multiforme; Oligodendrogliomas; Ependymomas; Subependymomas;

Prefixed ID : #137800;

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18/05/2024


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