1
|
Rosenberg S, Simeonova I, Bielle F, Verreault M, Bance B, Le Roux I, Daniau M, Nadaradjane A, Gleize V, Paris S, Marie Y, Giry M, Polivka M, Figarella-Branger D, Aubriot-Lorton MH, Villa C, Vasiljevic A, Lechapt-Zalcman E, Kalamarides M, Sharif A, Mokhtari K, Pagnotta SM, Iavarone A, Lasorella A, Huillard E, Sanson M. A recurrent point mutation in PRKCA is a hallmark of chordoid gliomas. Nat Commun 2018; 9:2371. [PMID: 29915258 PMCID: PMC6006150 DOI: 10.1038/s41467-018-04622-w] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 05/14/2018] [Indexed: 12/31/2022] Open
Abstract
Chordoid glioma (ChG) is a characteristic, slow growing, and well-circumscribed diencephalic tumor, whose mutational landscape is unknown. Here we report the analysis of 16 ChG by whole-exome and RNA-sequencing. We found that 15 ChG harbor the same PRKCAD463H mutation. PRKCA encodes the Protein kinase C (PKC) isozyme alpha (PKCα) and is mutated in a wide range of human cancers. However the hot spot PRKCAD463H mutation was not described in other tumors. PRKCAD463H is strongly associated with the activation of protein translation initiation (EIF2) pathway. PKCαD463H mRNA levels are more abundant than wild-type PKCα transcripts, while PKCαD463H is less stable than the PCKαWT protein. Compared to PCKαWT, the PKCαD463H protein is depleted from the cell membrane. The PKCαD463H mutant enhances proliferation of astrocytes and tanycytes, the cells of origin of ChG. In conclusion, our study identifies the hallmark mutation for chordoid gliomas and provides mechanistic insights on ChG oncogenesis. Chordoid glioma is a slow growing diencephalic tumor whose mutational landscape is poorly characterized. Here, the authors perform whole-exome and RNA-sequencing and find that 15 of 16 chordoid glioma cases studied harbor the same PRKCA mutation which results in enhanced proliferation.
Collapse
Affiliation(s)
- Shai Rosenberg
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France.,Gaffin Center for Neuro-oncology, Sharett Institute for Oncology, Hadassah - Hebrew University Medical Center, 91120, Jerusalem, Israel
| | - Iva Simeonova
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Franck Bielle
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France.,Laboratoire R Escourolle, AP-HP, Hôpital de la Pitié-Salpêtrière, F-75013, Paris, France
| | - Maite Verreault
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Bertille Bance
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Isabelle Le Roux
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Mailys Daniau
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Arun Nadaradjane
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Vincent Gleize
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Sophie Paris
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Yannick Marie
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France.,Onconeurotek Tumor Bank, Institut du Cerveau et de la Moelle épinère-ICM, F-75013, Paris, France
| | - Marine Giry
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Marc Polivka
- Department of Pathology, AP-HP, Hôpital Lariboisière, F-75010, Paris, France
| | - Dominique Figarella-Branger
- Pathology and Neuropathology Department, Assistance Publique-Hôpitaux de Marseille (AP-HM), CHU Timone, 13005, Marseille, France
| | | | - Chiara Villa
- Department of Pathological Cytology and Anatomy, Foch Hospital, Suresnes, F-92151, Paris, France
| | - Alexandre Vasiljevic
- Centre de Biologie et Pathologie Est, Groupement Hospitalier Est, Hospices Civils de Lyon, 69500, Bron, France
| | - Emmanuèle Lechapt-Zalcman
- Department of Pathology, CHU de Caen, Caen, France Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/LDM-TEP Group, 14000, Caen, France
| | - Michel Kalamarides
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France.,Service de Neurochirurgie, AP-HP, Hôpital de la Pitié-Salpêtrière, F-75013, Paris, France
| | - Ariane Sharif
- INSERM U1172, "Development and Plasticity of the Neuroendocrine Brain", F-59045, Lille, France
| | - Karima Mokhtari
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France.,Laboratoire R Escourolle, AP-HP, Hôpital de la Pitié-Salpêtrière, F-75013, Paris, France
| | - Stefano Maria Pagnotta
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, 82100, Benevento, Italy.,Institute for Cancer Genetics, Columbia University Medical Center, New York City, NY, 10032, USA
| | - Antonio Iavarone
- Institute for Cancer Genetics, Columbia University Medical Center, New York City, NY, 10032, USA.,Departments of Neurology and Pathology, Institute for Cancer Genetics, Irving Comprehensive Research Center, New York, NY, 10032, USA
| | - Anna Lasorella
- Institute for Cancer Genetics, Columbia University Medical Center, New York City, NY, 10032, USA.,Departments of Pediatrics and Pathology, Institute for Cancer Genetics, Irving Comprehensive Research Center, New York, NY, 10032, USA
| | - Emmanuelle Huillard
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France
| | - Marc Sanson
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, ICM, F-75013, Paris, France. .,Onconeurotek Tumor Bank, Institut du Cerveau et de la Moelle épinère-ICM, F-75013, Paris, France. .,AP-HP, Hôpital de la Pitié-Salpêtrière, Service de Neurologie 2, F-75013, Paris, France. .,Site de Recherche Intégrée sur le Cancer (SiRIC) "CURAMUS", F-75013, Paris, France.
| |
Collapse
|
2
|
Moortgat S, Désir J, Benoit V, Boulanger S, Pendeville H, Nassogne MC, Lederer D, Maystadt I. Two novel EIF2S3 mutations associated with syndromic intellectual disability with severe microcephaly, growth retardation, and epilepsy. Am J Med Genet A 2016; 170:2927-2933. [PMID: 27333055 DOI: 10.1002/ajmg.a.37792] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 05/30/2016] [Indexed: 01/06/2023]
Abstract
X-chromosome exome sequencing was performed to identify the genetic cause of syndromic intellectual disability in two unrelated families with suspected X-linked inheritance. In both families, affected males presented with severe intellectual disability, microcephaly, growth retardation, and epilepsy. A missense mutation (c.777T>G p.(Ile259Met)) and a frameshift mutation (c.1394_1397del p.(Ile465Serfs*4)) were identified in the EIF2S3 gene in the hemizygous state in affected patients, and in the heterozygous states female obligate carriers. A missense mutation in EIF2S3, coding for the gamma-subunit of the translation initiation factor eIF2, was reported once in a family presenting with similar clinical features. Morpholino-based knockdown of the zebrafish EIF2S3 ortholog (eif2s3) recapitulates the human microcephaly and short stature phenotype, supporting the pathogenicity of the identified variants. Our data confirm that EIF2S3 mutation is implicated in a rare, but recognizable, form of syndromic intellectual disability. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Stéphanie Moortgat
- Centre de Génétique Humaine, Institut de Pathologie et de Génétique, Charleroi (Gosselies), Belgium.
| | - Julie Désir
- Centre de Génétique Humaine, Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Valérie Benoit
- Centre de Génétique Humaine, Institut de Pathologie et de Génétique, Charleroi (Gosselies), Belgium
| | - Sébastien Boulanger
- Centre de Génétique Humaine, Institut de Pathologie et de Génétique, Charleroi (Gosselies), Belgium
| | - Hélène Pendeville
- GIGA-Research, Zebrafish Platform, Tour B34, Université de Liège, Liège (Sart-Tilman), Belgium
| | - Marie-Cécile Nassogne
- Département de Neuropédiatrie, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Damien Lederer
- Centre de Génétique Humaine, Institut de Pathologie et de Génétique, Charleroi (Gosselies), Belgium
| | - Isabelle Maystadt
- Centre de Génétique Humaine, Institut de Pathologie et de Génétique, Charleroi (Gosselies), Belgium
| |
Collapse
|