Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss

<p>Abstract</p> <p>Allelic loss of chromosome 1p is frequently observed in oligodendroglioma. We screened 177 oligodendroglial tumors for 1p deletions and found 6 tumors with localized 1p36 deletions. Several apoptosis regulation genes have been mapped to this region, including <...

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Main Authors: Fuller Gregory N, Bruner Janet, Sawaya Raymond, Taylor Ellen, Dunmire Valerie, McDonald J Matthew, Aldape Kenneth, Zhang Wei
Format: Article
Language:English
Published: BMC 2005-09-01
Series:Molecular Cancer
Online Access:http://www.molecular-cancer.com/content/4/1/35
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author Fuller Gregory N
Bruner Janet
Sawaya Raymond
Taylor Ellen
Dunmire Valerie
McDonald J Matthew
Aldape Kenneth
Zhang Wei
author_facet Fuller Gregory N
Bruner Janet
Sawaya Raymond
Taylor Ellen
Dunmire Valerie
McDonald J Matthew
Aldape Kenneth
Zhang Wei
author_sort Fuller Gregory N
collection DOAJ
description <p>Abstract</p> <p>Allelic loss of chromosome 1p is frequently observed in oligodendroglioma. We screened 177 oligodendroglial tumors for 1p deletions and found 6 tumors with localized 1p36 deletions. Several apoptosis regulation genes have been mapped to this region, including <it>Tumor Protein 73 (p73)</it>, <it>DNA Fragmentation Factor subunits alpha </it>(<it>DFFA</it>) and <it>beta </it>(<it>DFFB</it>), and <it>Tumor Necrosis Factor Receptor Superfamily Members 9 </it>and <it>25 </it>(<it>TNFRSF9, TNFRSF25</it>). We compared expression levels of these 5 genes in pairs of 1p-loss and 1p-intact tumors using quantitative reverse-transcriptase PCR (QRTPCR) to test if 1p deletions had an effect on expression. Only the <it>DFFB </it>gene demonstrated decreased expression in all tumor pairs tested. Mutational analysis did not reveal <it>DFFB </it>mutations in 12 tested samples. However, it is possible that <it>DFFB </it>haploinsufficiency from 1p allelic loss is a contributing factor in oligodendroglioma development.</p>
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spelling doaj.art-53645d3b74c94ab3bd59ff8572b4f15e2022-12-22T02:48:36ZengBMCMolecular Cancer1476-45982005-09-01413510.1186/1476-4598-4-35Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic LossFuller Gregory NBruner JanetSawaya RaymondTaylor EllenDunmire ValerieMcDonald J MatthewAldape KennethZhang Wei<p>Abstract</p> <p>Allelic loss of chromosome 1p is frequently observed in oligodendroglioma. We screened 177 oligodendroglial tumors for 1p deletions and found 6 tumors with localized 1p36 deletions. Several apoptosis regulation genes have been mapped to this region, including <it>Tumor Protein 73 (p73)</it>, <it>DNA Fragmentation Factor subunits alpha </it>(<it>DFFA</it>) and <it>beta </it>(<it>DFFB</it>), and <it>Tumor Necrosis Factor Receptor Superfamily Members 9 </it>and <it>25 </it>(<it>TNFRSF9, TNFRSF25</it>). We compared expression levels of these 5 genes in pairs of 1p-loss and 1p-intact tumors using quantitative reverse-transcriptase PCR (QRTPCR) to test if 1p deletions had an effect on expression. Only the <it>DFFB </it>gene demonstrated decreased expression in all tumor pairs tested. Mutational analysis did not reveal <it>DFFB </it>mutations in 12 tested samples. However, it is possible that <it>DFFB </it>haploinsufficiency from 1p allelic loss is a contributing factor in oligodendroglioma development.</p>http://www.molecular-cancer.com/content/4/1/35
spellingShingle Fuller Gregory N
Bruner Janet
Sawaya Raymond
Taylor Ellen
Dunmire Valerie
McDonald J Matthew
Aldape Kenneth
Zhang Wei
Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss
Molecular Cancer
title Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss
title_full Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss
title_fullStr Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss
title_full_unstemmed Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss
title_short Attenuated Expression of <it>DFFB </it>is a Hallmark of Oligodendrogliomas with 1p-Allelic Loss
title_sort attenuated expression of it dffb it is a hallmark of oligodendrogliomas with 1p allelic loss
url http://www.molecular-cancer.com/content/4/1/35
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