CNS tumors with PLAGL1-fusion: beyond ZFTA ...
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
CNS tumors with PLAGL1-fusion: beyond ZFTA and YAP1 in the genetic spectrum of supratentorial ependymomas
Auteur(s) :
Tauziède-Espariat, Arnault [Auteur]
Nicaise, Yvan [Auteur]
Sievers, Philipp [Auteur]
Sahm, Felix [Auteur]
Von Deimling, Andreas [Auteur]
Guillemot, Delphine [Auteur]
Pierron, Gaëlle [Auteur]
Duchesne, Mathilde [Auteur]
Edjlali, Myriam [Auteur]
Dangouloff-Ros, Volodia [Auteur]
Boddaert, Nathalie [Auteur]
Roux, Alexandre [Auteur]
Dezamis, Edouard [Auteur]
Hasty, Lauren [Auteur]
Lhermitte, Benoît [Auteur]
Hirsch, Edouard [Auteur]
Valenti Hirsch, Maria Paola [Auteur]
Ardellier, François-Daniel [Auteur]
Karnoub, Mélodie-Anne [Auteur]
Département de Neurochirurgie[Lille]
Csanyi, Marie [Auteur]
Maurage, Claude-Alain [Auteur]
Institut de Pathologie [CHU Lille]
Mokhtari, Karima [Auteur]
Bielle, Franck [Auteur]
Rigau, Valérie [Auteur]
Roujeau, Thomas [Auteur]
Abad, Marine [Auteur]
Klein, Sébastien [Auteur]
Bernier, Michèle [Auteur]
Horodyckid, Catherine [Auteur]
Adam, Clovis [Auteur]
Brandal, Petter [Auteur]
Niehusmann, Pitt [Auteur]
Vannod-Michel, Quentin [Auteur]
Provost, Corentin [Auteur]
Menjot De Champfleur, Nicolas [Auteur]
Nichelli, Lucia [Auteur]
Métais, Alice [Auteur]
Mariet, Cassandra [Auteur]
Chrétien, Fabrice [Auteur]
Blauwblomme, Thomas [Auteur]
Beccaria, Kévin [Auteur]
Pallud, Johan [Auteur]
Puget, Stéphanie [Auteur]
Uro-Coste, Emmanuelle [Auteur]
Varlet, Pascale [Auteur]
Nicaise, Yvan [Auteur]
Sievers, Philipp [Auteur]
Sahm, Felix [Auteur]
Von Deimling, Andreas [Auteur]
Guillemot, Delphine [Auteur]
Pierron, Gaëlle [Auteur]
Duchesne, Mathilde [Auteur]
Edjlali, Myriam [Auteur]
Dangouloff-Ros, Volodia [Auteur]
Boddaert, Nathalie [Auteur]
Roux, Alexandre [Auteur]
Dezamis, Edouard [Auteur]
Hasty, Lauren [Auteur]
Lhermitte, Benoît [Auteur]
Hirsch, Edouard [Auteur]
Valenti Hirsch, Maria Paola [Auteur]
Ardellier, François-Daniel [Auteur]
Karnoub, Mélodie-Anne [Auteur]
Département de Neurochirurgie[Lille]
Csanyi, Marie [Auteur]
Maurage, Claude-Alain [Auteur]

Institut de Pathologie [CHU Lille]
Mokhtari, Karima [Auteur]
Bielle, Franck [Auteur]
Rigau, Valérie [Auteur]
Roujeau, Thomas [Auteur]
Abad, Marine [Auteur]
Klein, Sébastien [Auteur]
Bernier, Michèle [Auteur]
Horodyckid, Catherine [Auteur]
Adam, Clovis [Auteur]
Brandal, Petter [Auteur]
Niehusmann, Pitt [Auteur]
Vannod-Michel, Quentin [Auteur]
Provost, Corentin [Auteur]
Menjot De Champfleur, Nicolas [Auteur]
Nichelli, Lucia [Auteur]
Métais, Alice [Auteur]
Mariet, Cassandra [Auteur]
Chrétien, Fabrice [Auteur]
Blauwblomme, Thomas [Auteur]
Beccaria, Kévin [Auteur]
Pallud, Johan [Auteur]
Puget, Stéphanie [Auteur]
Uro-Coste, Emmanuelle [Auteur]
Varlet, Pascale [Auteur]
Titre de la revue :
Acta Neuropathologica Communications
Nom court de la revue :
Acta Neuropathol Commun
Numéro :
12
Pagination :
55
Éditeur :
BioMed Central part of Springer Science
Date de publication :
2024-04-05
ISSN :
2051-5960
Mot(s)-clé(s) en anglais :
Ependymoma
PLAGL1
Subependymoma
DNA-methylation
PLAGL1
Subependymoma
DNA-methylation
Discipline(s) HAL :
Sciences du Vivant [q-bio]
Résumé en anglais : [en]
A novel methylation class, “neuroepithelial tumor, with PLAGL1 fusion” (NET-PLAGL1), has recently been described, based on epigenetic features, as a supratentorial pediatric brain tumor with recurrent histopathological ...
Lire la suite >A novel methylation class, “neuroepithelial tumor, with PLAGL1 fusion” (NET-PLAGL1), has recently been described, based on epigenetic features, as a supratentorial pediatric brain tumor with recurrent histopathological features suggesting an ependymal differentiation. Because of the recent identification of this neoplastic entity, few histopathological, radiological and clinical data are available. Herein, we present a detailed series of nine cases of PLAGL1-fused supratentorial tumors, reclassified from a series of supratentorial ependymomas, non-ZFTA/non-YAP1 fusion-positive and subependymomas of the young. This study included extensive clinical, radiological, histopathological, ultrastructural, immunohistochemical, genetic and epigenetic (DNA methylation profiling) data for characterization. An important aim of this work was to evaluate the sensitivity and specificity of a novel fluorescent in situ hybridization (FISH) targeting the PLAGL1 gene. Using histopathology, immunohistochemistry and electron microscopy, we confirmed the ependymal differentiation of this new neoplastic entity. Indeed, the cases histopathologically presented as “mixed subependymomas-ependymomas” with well-circumscribed tumors exhibiting a diffuse immunoreactivity for GFAP, without expression of Olig2 or SOX10. Ultrastructurally, they also harbored features reminiscent of ependymal differentiation, such as cilia. Different gene partners were fused with PLAGL1: FOXO1, EWSR1 and for the first time MAML2. The PLAGL1 FISH presented a 100% sensitivity and specificity according to RNA sequencing and DNA methylation profiling results. This cohort of supratentorial PLAGL1-fused tumors highlights: 1/ the ependymal cell origin of this new neoplastic entity; 2/ benefit of looking for a PLAGL1 fusion in supratentorial cases of non-ZFTA/non-YAP1 ependymomas; and 3/ the usefulness of PLAGL1 FISH.Lire moins >
Lire la suite >A novel methylation class, “neuroepithelial tumor, with PLAGL1 fusion” (NET-PLAGL1), has recently been described, based on epigenetic features, as a supratentorial pediatric brain tumor with recurrent histopathological features suggesting an ependymal differentiation. Because of the recent identification of this neoplastic entity, few histopathological, radiological and clinical data are available. Herein, we present a detailed series of nine cases of PLAGL1-fused supratentorial tumors, reclassified from a series of supratentorial ependymomas, non-ZFTA/non-YAP1 fusion-positive and subependymomas of the young. This study included extensive clinical, radiological, histopathological, ultrastructural, immunohistochemical, genetic and epigenetic (DNA methylation profiling) data for characterization. An important aim of this work was to evaluate the sensitivity and specificity of a novel fluorescent in situ hybridization (FISH) targeting the PLAGL1 gene. Using histopathology, immunohistochemistry and electron microscopy, we confirmed the ependymal differentiation of this new neoplastic entity. Indeed, the cases histopathologically presented as “mixed subependymomas-ependymomas” with well-circumscribed tumors exhibiting a diffuse immunoreactivity for GFAP, without expression of Olig2 or SOX10. Ultrastructurally, they also harbored features reminiscent of ependymal differentiation, such as cilia. Different gene partners were fused with PLAGL1: FOXO1, EWSR1 and for the first time MAML2. The PLAGL1 FISH presented a 100% sensitivity and specificity according to RNA sequencing and DNA methylation profiling results. This cohort of supratentorial PLAGL1-fused tumors highlights: 1/ the ependymal cell origin of this new neoplastic entity; 2/ benefit of looking for a PLAGL1 fusion in supratentorial cases of non-ZFTA/non-YAP1 ependymomas; and 3/ the usefulness of PLAGL1 FISH.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
Inserm
CHU Lille
Inserm
CHU Lille
Collections :
Date de dépôt :
2024-06-22T21:23:20Z
2025-02-26T10:16:50Z
2025-02-26T10:16:50Z
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