Molecular mechanisms underlying nucleotide repeat expansion disorders

I Malik, CP Kelley, ET Wang, PK Todd - Nature reviews Molecular cell …, 2021 - nature.com
The human genome contains over one million short tandem repeats. Expansion of a subset
of these repeat tracts underlies over fifty human disorders, including common genetic …

An update on the neurological short tandem repeat expansion disorders and the emergence of long-read sequencing diagnostics

SR Chintalaphani, SS Pineda, IW Deveson… - Acta Neuropathologica …, 2021 - Springer
Background Short tandem repeat (STR) expansion disorders are an important cause of
human neurological disease. They have an established role in more than 40 different …

Normal and pathogenic variation of RFC1 repeat expansions: implications for clinical diagnosis

N Dominik, S Magri, R Currò, E Abati, S Facchini… - Brain, 2023 - academic.oup.com
Cerebellar ataxia, neuropathy and vestibular areflexia syndrome (CANVAS) is an autosomal
recessive neurodegenerative disease, usually caused by biallelic AAGGG repeat …

Comprehensive genetic diagnosis of tandem repeat expansion disorders with programmable targeted nanopore sequencing

I Stevanovski, SR Chintalaphani, H Gamaarachchi… - Science …, 2022 - science.org
More than 50 neurological and neuromuscular diseases are caused by short tandem repeat
(STR) expansions, with 37 different genes implicated to date. We describe the use of …

Motor neuron pathology in CANVAS due to RFC1 expansions

V Huin, G Coarelli, C Guemy, S Boluda, R Debs… - Brain, 2022 - academic.oup.com
CANVAS caused by RFC1 biallelic expansions is a major cause of inherited sensory
neuronopathy. Detection of RFC1 expansion is challenging and CANVAS can be associated …

AAGGG repeat expansions trigger RFC1-independent synaptic dysregulation in human CANVAS neurons

CJ Maltby, A Krans, SJ Grudzien, Y Palacios… - Science …, 2024 - science.org
Cerebellar ataxia with neuropathy and vestibular areflexia syndrome (CANVAS) is a
recessively inherited neurodegenerative disorder caused by intronic biallelic, nonreference …

RFC1 nonsense and frameshift variants cause CANVAS: clues for an unsolved pathophysiology

M Benkirane, D Da Cunha, C Marelli, L Larrieu… - Brain, 2022 - academic.oup.com
Cerebellar ataxia, neuropathy and vestibular areflexia syndrome (CANVAS) is an inherited
late-onset neurological disease caused by bi-allelic AAGGG pentanucleotide expansions …

Recessive cerebellar and afferent ataxias—clinical challenges and future directions

M Beaudin, M Manto, JD Schmahmann… - Nature Reviews …, 2022 - nature.com
Cerebellar and afferent ataxias present with a characteristic gait disorder that reflects
cerebellar motor dysfunction and sensory loss. These disorders are a diagnostic challenge …

Parallel in-depth analysis of repeat expansions in ataxia patients by long-read sequencing

H Erdmann, F Schöberl, M Giurgiu, RM Leal Silva… - Brain, 2023 - academic.oup.com
Instability of simple DNA repeats has been known as a common cause of hereditary ataxias
for over 20 years. Routine genetic diagnostics of these phenotypically similar diseases still …

Pathogenic CANVAS (AAGGG)n repeats stall DNA replication due to the formation of alternative DNA structures

JA Hisey, EA Radchenko, NH Mandel… - Nucleic Acids …, 2024 - academic.oup.com
CANVAS is a recently characterized repeat expansion disease, most commonly caused by
homozygous expansions of an intronic (A2G3) n repeat in the RFC1 gene. There are a …