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Georges A, Albuisson J, Berrandou T, Dupré D, Lorthioir A, D'Escamard V, Di Narzo AF, Kadian-Dodov D, Olin JW, Warchol-Celinska E, Prejbisz A, Januszewicz A, Bruneval P, Baranowska AA, Webb TR, Hamby SE, Samani NJ, Adlam D, Fendrikova-Mahlay N, Hazen S, Wang Y, Yang ML, Hunker K, Combaret N, Motreff P, Chédid A, Fiquet B, Plouin PF, Mousseaux E, Azarine A, Amar L, Azizi M, Gornik HL, Ganesh SK, Kovacic JC, Jeunemaitre X, Bouatia-Naji N. Rare loss-of-function mutations of PTGIR are enriched in fibromuscular dysplasia. Cardiovasc Res 2020; 117:1154-1165. [PMID: 32531060 PMCID: PMC7983006 DOI: 10.1093/cvr/cvaa161] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/14/2020] [Accepted: 06/07/2020] [Indexed: 12/12/2022] Open
Abstract
Aims Fibromuscular dysplasia (FMD) and spontaneous coronary artery dissection (SCAD) are related, non-atherosclerotic arterial diseases mainly affecting middle-aged women. Little is known about their physiopathological mechanisms. We aimed to identify rare genetic causes to elucidate molecular mechanisms implicated in FMD and SCAD. Methods and results We analysed 29 exomes that included familial and sporadic FMD. We identified one rare loss-of-function variant (LoF) (frequencygnomAD = 0.000075) shared by two FMD sisters in the prostaglandin I2 receptor gene (PTGIR), a key player in vascular remodelling. Follow-up was conducted by targeted or Sanger sequencing (1071 FMD and 363 SCAD patients) or lookups in exome (264 FMD) or genome sequences (480 SCAD), all independent and unrelated. It revealed four additional LoF allele carriers, in addition to several rare missense variants, among FMD patients, and two LoF allele carriers among SCAD patients, including one carrying a rare splicing mutation (c.768 + 1C>G). We used burden test to test for enrichment in patients compared to gnomAD controls, which detected a putative enrichment in FMD (PTRAPD = 8 × 10−4), but not a significant enrichment (PTRAPD = 0.12) in SCAD. The biological effects of variants on human prostaclycin receptor (hIP) signalling and protein expression were characterized using transient overexpression in human cells. We confirmed the LoFs (Q163X and P17RfsX6) and one missense (L67P), identified in one FMD and one SCAD patient, to severely impair hIP function in vitro. Conclusions Our study shows that rare genetic mutations in PTGIR are enriched among FMD patients and found in SCAD patients, suggesting a role for prostacyclin signalling in non-atherosclerotic stenosis and dissection.
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Affiliation(s)
- Adrien Georges
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France
| | - Juliette Albuisson
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France.,Department of Genetics, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Takiy Berrandou
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France
| | - Délia Dupré
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France
| | - Aurélien Lorthioir
- Department of Hypertension, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Valentina D'Escamard
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Antonio F Di Narzo
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Daniella Kadian-Dodov
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jeffrey W Olin
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | | | | | | | - Patrick Bruneval
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France
| | - Anna A Baranowska
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester LE5 4PW, UK
| | - Tom R Webb
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester LE5 4PW, UK
| | - Stephen E Hamby
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester LE5 4PW, UK
| | - Nilesh J Samani
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester LE5 4PW, UK
| | - David Adlam
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester LE5 4PW, UK
| | - Natalia Fendrikova-Mahlay
- Department of Cardiovascular Medicine, Cleveland Clinic Heart and Vascular Institute, Cleveland, OH 44195, USA
| | - Stanley Hazen
- Department of Cardiovascular Medicine, Cleveland Clinic Heart and Vascular Institute, Cleveland, OH 44195, USA
| | - Yu Wang
- Division of Cardiovascular Medicine, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5856, USA.,Division of Cardiovascular Medicine, Department of Human Genetics, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5618, USA
| | - Min-Lee Yang
- Division of Cardiovascular Medicine, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5856, USA.,Division of Cardiovascular Medicine, Department of Human Genetics, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5618, USA
| | - Kristina Hunker
- Division of Cardiovascular Medicine, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5856, USA.,Division of Cardiovascular Medicine, Department of Human Genetics, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5618, USA
| | - Nicolas Combaret
- Department of Cardiology, University Hospital of Clermont-Ferrand, Auvergne University, F-63003 Clermont-Ferrand, France
| | - Pascal Motreff
- Department of Cardiology, University Hospital of Clermont-Ferrand, Auvergne University, F-63003 Clermont-Ferrand, France
| | - Antoine Chédid
- Department of Hypertension, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Béatrice Fiquet
- Department of Hypertension, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Pierre-François Plouin
- Department of Hypertension, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Elie Mousseaux
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France.,Department of Radiology, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Arshid Azarine
- Department of Radiology, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Laurence Amar
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France.,Department of Hypertension, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Michel Azizi
- Department of Hypertension, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France.,Université de Paris, Inserm CIC1418, F-75015 Paris, France
| | - Heather L Gornik
- University Hospitals Harrington Heart and Vascular Institute, University Hospitals and Case Western Reserve University, Cleveland, OH 44106, USA
| | - Santhi K Ganesh
- Division of Cardiovascular Medicine, Department of Internal Medicine, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5856, USA.,Division of Cardiovascular Medicine, Department of Human Genetics, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109-5618, USA
| | - Jason C Kovacic
- The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia.,St Vincent's Clinical School, University of NSW, Darlinghurst, NSW 2010, Australia
| | - Xavier Jeunemaitre
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France.,Department of Genetics, Assistance-publique-hôpitaux de Paris, Hopital Européen Georges Pompidou, F-75015 Paris, France
| | - Nabila Bouatia-Naji
- Paris Cardiovascular Research Center, Inserm, Université de Paris, 56 Rue Leblanc, F-75015 Paris, France
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