Angiomatous meningiomas have a distinct genetic profile with multiple chromosomal polysomies including polysomy of chromosome 5.
Angiomatous meningiomas have a distinct genetic profile with multiple chromosomal polysomies including polysomy of chromosome 5.
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DOI:
10.18632/oncotarget.2517
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发表时间:
2014-11-15
期刊:
影响因子:
--
通讯作者:
Santagata S
中科院分区:
文献类型:
--
作者:
Abedalthagafi MS;Merrill PH;Bi WL;Jones RT;Listewnik ML;Ramkissoon SH;Thorner AR;Dunn IF;Beroukhim R;Alexander BM;Brastianos PK;Francis JM;Folkerth RD;Ligon KL;Van Hummelen P;Ligon AH;Santagata S
Meningiomas are a diverse group of tumors with a broad spectrum of histologic features. There are over 12 variants of meningioma, whose genetic features are just beginning to be described. Angiomatous meningioma is a World Health Organization (WHO) meningioma variant with a predominance of blood vessels. They are uncommon and confirming the histopathologic classification can be challenging. Given a lack of biomarkers that define the angiomatous subtype and limited understanding of the genetic changes underlying its tumorigenesis, we compared the genomic characteristics of angiomatous meningioma to more common meningioma subtypes. While typical grade I meningiomas demonstrate monosomy of chromosome 22 or lack copy number aberrations, 13 of 14 cases of angiomatous meningioma demonstrated a distinct copy number profile – polysomies of at least one chromosome, but often of many, especially in chromosomes 5, 13, and 20. WHO grade II atypical meningiomas with angiomatous features have both polysomies and genetic aberrations characteristic of other atypical meningiomas. Sequencing of over 560 cancer-relevant genes in 16 cases of angiomatous meningioma showed that these tumors lack common mutations found in other variants of meningioma. Our study demonstrates that angiomatous meningiomas have distinct genomic features that may be clinically useful for their diagnosis.
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影响因子:
6.4
作者:
Goutagny, Stephane;Nault, Jean C.;Kalamarides, Michel
通讯作者:
Kalamarides, Michel
影响因子:
64.5
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Davoli T;Xu AW;Mengwasser KE;Sack LM;Yoon JC;Park PJ;Elledge SJ
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通讯作者:
Zhang J
影响因子:
3.9
作者:
Ketter, Ralf;Kim, Yoo-Jin;Henn, Wolfram
通讯作者:
Henn, Wolfram
影响因子:
30.8
作者:
通讯作者:
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