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Germline MET pathogenic variants in papillary renal cell carcinomas type I: specific phenotype in French population and novel germline pathogenic variant MET c.3389T>C, p.(Leu1130Ser)
  • +22
  • Molka SEBAI,
  • David TULASNE,
  • Sandrine Caputo,
  • Virginie VERKARRE ,
  • Marie FERNANDES ,
  • Fanny REINHART,
  • Severine ADAMS ,
  • Christine Maugard,
  • Olivier Caron,
  • Marine GUILLAUD-BATAILLE,
  • Pascaline  BERTHET,
  • Yves-Jean Bignon,
  • Brigitte Bressac-de Paillerets,
  • Nelly BURNICHON,
  • Jean Chiesa,
  • Sophie Giraud,
  • Sophie LEJEUNE,
  • Jean-Marc LIMACHER,
  • Antoine de Pauw,
  • Dominique Stoppa-Lyonnet,
  • Hélène ZATTARA-CANNONI,
  • Sophie DEVEAUX,
  • Rosette LIDEREAU,
  • Stéphane RICHARD,
  • Etienne Rouleau
Molka SEBAI
Department of Medical Biology and Pathology, Cancer Genetics Laboratory, Gustave Roussy, 94800

Corresponding Author:molkasebai11@gmail.com

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David TULASNE
Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020-U1277 - CANTHER - Cancer Heterogeneity Plasticity and Resistance to Therapies, F-59000
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Sandrine Caputo
Department of Genetics, Institut Curie, 75005
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Virginie VERKARRE
Department of Pathology, Georges Pompidou European Hospital, Assistance Publique Hôpitaux de Paris, 75015
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Marie FERNANDES
Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020-U1277 - CANTHER - Cancer Heterogeneity Plasticity and Resistance to Therapies, F-59000
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Fanny REINHART
Department of Pathology, Georges Pompidou European Hospital, Assistance Publique Hôpitaux de Paris, 75015
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Severine ADAMS
Department of Medical Biology and Pathology, Cancer Genetics Laboratory, Gustave Roussy, 94800
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Christine Maugard
Department of molecular oncogenetics, Hôpitaux Universitaires de Strasbourg, 67091
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Olivier Caron
Department of Medical Oncogenetics, Gustave Roussy, 94800
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Marine GUILLAUD-BATAILLE
Department of Medical Biology and Pathology, Cancer Genetics Laboratory, Gustave Roussy, 94800
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Pascaline  BERTHET
French National Network for Rare Cancers in Adults PREDIR labelled by INCa, AP-HP, Hôpital Bicêtre, 94270
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Yves-Jean Bignon
French National Network for Rare Cancers in Adults PREDIR labelled by INCa, AP-HP, Hôpital Bicêtre, 94270
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Brigitte Bressac-de Paillerets
Department of Medical Biology and Pathology, Cancer Genetics Laboratory, Gustave Roussy, 94800
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Nelly BURNICHON
Université de Paris, AP-HP, Hôpital Européen Georges Pompidou, Genetics department
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Jean Chiesa
Department of Cytogenetics, Nimes University Hospital, 30029
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Sophie Giraud
Genetics Department, Hospices Civils de LYON (HCL), 69002
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Sophie LEJEUNE
Department of genetics, CHRU Lille, 59000
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Jean-Marc LIMACHER
Genetics Department, Hôpitaux civils de Colmar, 68024
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Antoine de Pauw
Department of Genetics, Institut Curie, 75005
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Dominique Stoppa-Lyonnet
Department of Genetics, Institut Curie, 75005
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Hélène ZATTARA-CANNONI
Department of Genetics, Hôpital de la Timone Enfants, 13005
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Sophie DEVEAUX
French National Network for Rare Cancers in Adults PREDIR labelled by INCa, AP-HP, Hôpital Bicêtre, 94270
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Rosette LIDEREAU
Department of Genetics, Institut Curie, 75005
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Stéphane RICHARD
French National Network for Rare Cancers in Adults PREDIR labelled by INCa, AP-HP, Hôpital Bicêtre, 94270
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Etienne Rouleau
Department of Medical Biology and Pathology, Cancer Genetics Laboratory, Gustave Roussy, 94800
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Abstract

Hereditary papillary renal cell carcinoma (HPRCC) is a rare inherited renal cancer syndrome characterized by bilateral and multifocal papillary type 1 renal tumors (PRCC1). Activating germline pathogenic variants of MET gene were identified in HPRCC families. We reviewed the medical and molecular records of a large French series of 158 patients screened for MET oncogenic variants (153 index-cases and five relatives). MET pathogenic variant rate was 10.4% (16/153) with 37.5% among patients with familial PRCC1 and 3.3% among patients with sporadic PRCC1 presentation. The phenotype in MET mutated cases was characteristic as PRCC1 tumors were mainly bilateral (82.3%) and multifocal (85.8%). Histologically, six out of seven patients with MET germline pathogenic variant harboured biphasic squamoid alveolar PRCC. Genetic screening identified in four index-cases a novel missense pathogenic variant within the tyrosine kinase domain: MET c.3389T>C, p.(Leu1130Ser). Functional assay confirmed its oncogenic effect with a constitutive phosphorylation of ERK protein and an abnormal focus formation induced. The genotype-phenotype correlation between MET pathogenic variants and PRCC1 presentation should encourage to widen the screening, especially toward non-familial PRCC1. This precise phenotype also constitutes a strong argument for the classification of novel missense variants within the tyrosine kinase domain when functional assays aren’t accessible.
24 May 2021Submitted to Human Mutation
25 May 2021Submission Checks Completed
25 May 2021Assigned to Editor
02 Jun 2021Reviewer(s) Assigned
22 Jun 2021Review(s) Completed, Editorial Evaluation Pending
28 Jun 2021Editorial Decision: Revise Major
06 Nov 20211st Revision Received
01 Dec 2021Submission Checks Completed
01 Dec 2021Assigned to Editor
01 Dec 2021Review(s) Completed, Editorial Evaluation Pending
06 Dec 2021Editorial Decision: Accept