Molecular variants and mutations in medulloblastoma

Kristin Schroeder, Sri GururanganPediatric Clinical Services, Preston Robert Tisch Brain Tumor Center at Duke, Duke University Medical Center, Durham, NC, USAAbstract: Medulloblastoma is the commonest malignant brain tumor in children. Treatment with surgery, irradiation, and chemotherapy has improv...

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Main Authors: Schroeder K, Gururangan S
Format: Article
Language:English
Published: Dove Medical Press 2014-02-01
Series:Pharmacogenomics and Personalized Medicine
Online Access:http://www.dovepress.com/molecular-variants-and-mutations-in-medulloblastoma-a15715
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author Schroeder K
Gururangan S
author_facet Schroeder K
Gururangan S
author_sort Schroeder K
collection DOAJ
description Kristin Schroeder, Sri GururanganPediatric Clinical Services, Preston Robert Tisch Brain Tumor Center at Duke, Duke University Medical Center, Durham, NC, USAAbstract: Medulloblastoma is the commonest malignant brain tumor in children. Treatment with surgery, irradiation, and chemotherapy has improved outcomes in recent years, but patients are frequently left with devastating neurocognitive and other sequelae following such therapy. While the prognosis has traditionally been based on conventional histopathology and clinical staging (based on age, extent of resection, and presence or absence of metastasis), it has become apparent in recent years that the inherent biology of the tumor plays a significant part in predicting survival and sometimes supersedes clinical or pathologic risk factors. The advent of deep sequencing gene technology has provided invaluable clues to the molecular makeup of this tumor and allowed neuro-oncologists to understand that medulloblastoma is an amalgamation of several distinct disease entities with unique clinical associations and behavior. This review is a concise summary of the pathology, genetic syndromes, recent advances in molecular subgrouping, and the associated gene mutations and copy number variations in medulloblastoma. The association of molecular alterations with patient prognosis is also discussed, but it should be remembered that further validation is required in prospective clinical trials utilizing uniform treatment approaches.Keywords: medulloblastoma, children, adults, molecular subgroups, mutations
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spelling doaj.art-b119fef38d924d46b2ae2462dcbafc262022-12-21T19:13:25ZengDove Medical PressPharmacogenomics and Personalized Medicine1178-70662014-02-012014default435115715Molecular variants and mutations in medulloblastomaSchroeder KGururangan SKristin Schroeder, Sri GururanganPediatric Clinical Services, Preston Robert Tisch Brain Tumor Center at Duke, Duke University Medical Center, Durham, NC, USAAbstract: Medulloblastoma is the commonest malignant brain tumor in children. Treatment with surgery, irradiation, and chemotherapy has improved outcomes in recent years, but patients are frequently left with devastating neurocognitive and other sequelae following such therapy. While the prognosis has traditionally been based on conventional histopathology and clinical staging (based on age, extent of resection, and presence or absence of metastasis), it has become apparent in recent years that the inherent biology of the tumor plays a significant part in predicting survival and sometimes supersedes clinical or pathologic risk factors. The advent of deep sequencing gene technology has provided invaluable clues to the molecular makeup of this tumor and allowed neuro-oncologists to understand that medulloblastoma is an amalgamation of several distinct disease entities with unique clinical associations and behavior. This review is a concise summary of the pathology, genetic syndromes, recent advances in molecular subgrouping, and the associated gene mutations and copy number variations in medulloblastoma. The association of molecular alterations with patient prognosis is also discussed, but it should be remembered that further validation is required in prospective clinical trials utilizing uniform treatment approaches.Keywords: medulloblastoma, children, adults, molecular subgroups, mutationshttp://www.dovepress.com/molecular-variants-and-mutations-in-medulloblastoma-a15715
spellingShingle Schroeder K
Gururangan S
Molecular variants and mutations in medulloblastoma
Pharmacogenomics and Personalized Medicine
title Molecular variants and mutations in medulloblastoma
title_full Molecular variants and mutations in medulloblastoma
title_fullStr Molecular variants and mutations in medulloblastoma
title_full_unstemmed Molecular variants and mutations in medulloblastoma
title_short Molecular variants and mutations in medulloblastoma
title_sort molecular variants and mutations in medulloblastoma
url http://www.dovepress.com/molecular-variants-and-mutations-in-medulloblastoma-a15715
work_keys_str_mv AT schroederk molecularvariantsandmutationsinmedulloblastoma
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