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Biallelic Mutations in ADPRHL2, Encoding ADP-Ribosylhydrolase 3, Lead to a Degenerative Pediatric Stress-Induced Epileptic Ataxia Syndrome    
Yazarlar
Shereen G Ghosh
Kerstin Becker
He Huang
Tracy Dixon-Salazar
Guoliang Chai
Vincenzo Salpietro
Lihadh Al-Gazali
Quinten Waisfisz
Haicui Wang
Keith K Vaux
Valentina Stanley
Andreea Manole
Dr. Öğr. Üyesi Uğur AKPULAT
Kastamonu Üniversitesi, Türkiye
Marjan M Weiss
Stephanie Efthymiou
Michael G Hanna
Carlo Minetti
Pasquale Striano
Livia Pisciotta
Grandis Elisa De
Janine Altmüller
Peter Nürnberg
Holger Thiele
Uluç Yiş
Dokuz Eylül Üniversitesi, Türkiye
Tuncay Derya Okur
Ayse Ipek Polat
Nafise Amiri
Mohammad Doosti
Ehsan Ghayoor Karimani
Mehran B Toosi
Gabriel Haddad
Mert Karakaya
Brunhilde Wirth
Hagen Johanna Van
Nicole I Wolf
Reza Maroofian
Henry Houlden
Sebahattin Cirak
Joseph G Gleeson
Özet
ADP-ribosylation, the addition of poly-ADP ribose (PAR) onto proteins, is a response signal to cellular challenges, such as excitotoxicity or oxidative stress. This process is catalyzed by a group of enzymes referred to as poly(ADP-ribose) polymerases (PARPs). Because the accumulation of proteins with this modification results in cell death, its negative regulation restores cellular homeostasis: a process mediated by poly-ADP ribose glycohydrolases (PARGs) and ADP-ribosylhydrolase proteins (ARHs). Using linkage analysis and exome or genome sequencing, we identified recessive inactivating mutations in ADPRHL2 in six families. Affected individuals exhibited a pediatric-onset neurodegenerative disorder with progressive brain atrophy, developmental regression, and seizures in association with periods of stress, such as infections. Loss of the Drosophila paralog Parg showed lethality in response to oxidative challenge that was rescued by human ADPRHL2, suggesting functional conservation. Pharmacological inhibition of PARP also rescued the phenotype, suggesting the possibility of postnatal treatment for this genetic condition.
Anahtar Kelimeler
ADP-ribosylation, ADPRHL2, ARH3, SUDEP, ataxia, epilepsy, neurodegeneration, neuropathy, oxidative stress, poly-ADP ribose
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı AMERICAN JOURNAL OF HUMAN GENETICS
Dergi ISSN 0002-9297
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 09-2018
Cilt No 103
Sayı 3
Sayfalar 431 / 439
Doi Numarası 10.1016/j.ajhg.2018.07.010
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S0002929718302374