Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Otorhinolaryngology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942016000600687 |
Resumo: | Abstract Introduction: A key step of cancer development is the progressive accumulation of genomic changes resulting in disruption of several biological mechanisms. Carcinoma ex-pleomorphic adenoma (CXPA) is an aggressive neoplasm that arises from a pleomorphic adenoma. CXPA derived from a recurrent PA (RPA) has been rarely reported, and the genomic changes associated with these tumors have not yet been studied. Objective: We analyzed CXPA from RPAs and RPAs without malignant transformation using array-comparative genomic hybridization (array-CGH) to identify somatic copy number alterations and affected genes. Methods: DNA samples extracted from FFPE tumors were submitted to array-CGH investigation, and data was analyzed by Nexus Copy Number Discovery Edition v.7. Results: No somatic copy number alterations were found in RPAs without malignant transformation. As for CXPA from RPA, although genomic profiles were unique for each case, we detected some chromosomal regions that appear to be preferentially affected by copy number alterations. The first case of CXPA-RPA (frankly invasive myoepithelial carcinoma) showed copy number alterations affecting 1p36.33p13, 5p and chromosomes 3 and 8. The second case of CXPA-RPA (frankly invasive epithelial-myoepithelial carcinoma) showed several alterations at chromosomes 3, 8, and 16, with two amplifications at 8p12p11.21 and 12q14.3q21.2. The third case of CXPA-RPA (minimally invasive epithelial-myoepithelial carcinoma) exhibited amplifications at 12q13.3q14.1, 12q14.3, and 12q15. Conclusion: The occurrence of gains at chromosomes 3 and 8 and genomic amplifications at 8p and 12q, mainly those encompassing the HMGA2, MDM2, WIF1, WHSC1L1, LIRG3, CDK4 in CXAP from RPA can be a significant promotional factor in malignant transformation. |
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Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformationCarcinoma ex-pleomorphic adenomaRecurrent pleomorphic adenomaSomatic copy number alterationsaCGHAbstract Introduction: A key step of cancer development is the progressive accumulation of genomic changes resulting in disruption of several biological mechanisms. Carcinoma ex-pleomorphic adenoma (CXPA) is an aggressive neoplasm that arises from a pleomorphic adenoma. CXPA derived from a recurrent PA (RPA) has been rarely reported, and the genomic changes associated with these tumors have not yet been studied. Objective: We analyzed CXPA from RPAs and RPAs without malignant transformation using array-comparative genomic hybridization (array-CGH) to identify somatic copy number alterations and affected genes. Methods: DNA samples extracted from FFPE tumors were submitted to array-CGH investigation, and data was analyzed by Nexus Copy Number Discovery Edition v.7. Results: No somatic copy number alterations were found in RPAs without malignant transformation. As for CXPA from RPA, although genomic profiles were unique for each case, we detected some chromosomal regions that appear to be preferentially affected by copy number alterations. The first case of CXPA-RPA (frankly invasive myoepithelial carcinoma) showed copy number alterations affecting 1p36.33p13, 5p and chromosomes 3 and 8. The second case of CXPA-RPA (frankly invasive epithelial-myoepithelial carcinoma) showed several alterations at chromosomes 3, 8, and 16, with two amplifications at 8p12p11.21 and 12q14.3q21.2. The third case of CXPA-RPA (minimally invasive epithelial-myoepithelial carcinoma) exhibited amplifications at 12q13.3q14.1, 12q14.3, and 12q15. Conclusion: The occurrence of gains at chromosomes 3 and 8 and genomic amplifications at 8p and 12q, mainly those encompassing the HMGA2, MDM2, WIF1, WHSC1L1, LIRG3, CDK4 in CXAP from RPA can be a significant promotional factor in malignant transformation.Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.2016-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942016000600687Brazilian Journal of Otorhinolaryngology v.82 n.6 2016reponame:Brazilian Journal of Otorhinolaryngologyinstname:Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)instacron:ABORL-CCF10.1016/j.bjorl.2015.12.004info:eu-repo/semantics/openAccessMariano,Fernanda VivianeGiovanetti,KarinaSaccomani,Luis Fernando VidalDel Negro,AndréKowalski,Luiz PauloKrepischi,Ana Cristina VictorinoAltemani,Albinaeng2016-12-13T00:00:00Zoai:scielo:S1808-86942016000600687Revistahttp://www.bjorl.org.br/https://old.scielo.br/oai/scielo-oai.phprevista@aborlccf.org.br||revista@aborlccf.org.br1808-86861808-8686opendoar:2016-12-13T00:00Brazilian Journal of Otorhinolaryngology - Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)false |
dc.title.none.fl_str_mv |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
title |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
spellingShingle |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation Mariano,Fernanda Viviane Carcinoma ex-pleomorphic adenoma Recurrent pleomorphic adenoma Somatic copy number alterations aCGH |
title_short |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
title_full |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
title_fullStr |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
title_full_unstemmed |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
title_sort |
Carcinoma ex-pleomorphic adenoma derived from recurrent pleomorphic adenoma shows important difference by array CGH compared to recurrent pleomorphic adenoma without malignant transformation |
author |
Mariano,Fernanda Viviane |
author_facet |
Mariano,Fernanda Viviane Giovanetti,Karina Saccomani,Luis Fernando Vidal Del Negro,André Kowalski,Luiz Paulo Krepischi,Ana Cristina Victorino Altemani,Albina |
author_role |
author |
author2 |
Giovanetti,Karina Saccomani,Luis Fernando Vidal Del Negro,André Kowalski,Luiz Paulo Krepischi,Ana Cristina Victorino Altemani,Albina |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Mariano,Fernanda Viviane Giovanetti,Karina Saccomani,Luis Fernando Vidal Del Negro,André Kowalski,Luiz Paulo Krepischi,Ana Cristina Victorino Altemani,Albina |
dc.subject.por.fl_str_mv |
Carcinoma ex-pleomorphic adenoma Recurrent pleomorphic adenoma Somatic copy number alterations aCGH |
topic |
Carcinoma ex-pleomorphic adenoma Recurrent pleomorphic adenoma Somatic copy number alterations aCGH |
description |
Abstract Introduction: A key step of cancer development is the progressive accumulation of genomic changes resulting in disruption of several biological mechanisms. Carcinoma ex-pleomorphic adenoma (CXPA) is an aggressive neoplasm that arises from a pleomorphic adenoma. CXPA derived from a recurrent PA (RPA) has been rarely reported, and the genomic changes associated with these tumors have not yet been studied. Objective: We analyzed CXPA from RPAs and RPAs without malignant transformation using array-comparative genomic hybridization (array-CGH) to identify somatic copy number alterations and affected genes. Methods: DNA samples extracted from FFPE tumors were submitted to array-CGH investigation, and data was analyzed by Nexus Copy Number Discovery Edition v.7. Results: No somatic copy number alterations were found in RPAs without malignant transformation. As for CXPA from RPA, although genomic profiles were unique for each case, we detected some chromosomal regions that appear to be preferentially affected by copy number alterations. The first case of CXPA-RPA (frankly invasive myoepithelial carcinoma) showed copy number alterations affecting 1p36.33p13, 5p and chromosomes 3 and 8. The second case of CXPA-RPA (frankly invasive epithelial-myoepithelial carcinoma) showed several alterations at chromosomes 3, 8, and 16, with two amplifications at 8p12p11.21 and 12q14.3q21.2. The third case of CXPA-RPA (minimally invasive epithelial-myoepithelial carcinoma) exhibited amplifications at 12q13.3q14.1, 12q14.3, and 12q15. Conclusion: The occurrence of gains at chromosomes 3 and 8 and genomic amplifications at 8p and 12q, mainly those encompassing the HMGA2, MDM2, WIF1, WHSC1L1, LIRG3, CDK4 in CXAP from RPA can be a significant promotional factor in malignant transformation. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942016000600687 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942016000600687 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.bjorl.2015.12.004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. |
publisher.none.fl_str_mv |
Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. |
dc.source.none.fl_str_mv |
Brazilian Journal of Otorhinolaryngology v.82 n.6 2016 reponame:Brazilian Journal of Otorhinolaryngology instname:Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF) instacron:ABORL-CCF |
instname_str |
Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF) |
instacron_str |
ABORL-CCF |
institution |
ABORL-CCF |
reponame_str |
Brazilian Journal of Otorhinolaryngology |
collection |
Brazilian Journal of Otorhinolaryngology |
repository.name.fl_str_mv |
Brazilian Journal of Otorhinolaryngology - Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF) |
repository.mail.fl_str_mv |
revista@aborlccf.org.br||revista@aborlccf.org.br |
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1754575992304697344 |