NOTCH2NLC GGC repeats are not expanded in Italian amyotrophic lateral sclerosis patients.
Sci Rep
; 13(1): 3187, 2023 02 23.
Article
em En
| MEDLINE
| ID: mdl-36823368
ABSTRACT
Repeat expansions in genes other than C9orf72 and ATXN2 have been recently associated with Amyotrophic Lateral Sclerosis (ALS). Indeed, an abnormal number of GGC repeats in NOTCH2NLC has been recently reported in 0.7% of sporadic ALS patients from mainland China. This finding was not confirmed in an ALS cohort of subjects from Taiwan. As the involvement of expanded NOTCH2NLC alleles in ALS is debated, we addressed this point by evaluating NOTCH2NLC repeat expansions in an Italian cohort of ALS patients. A screening analysis of NOTCH2NLC GGC repeats was performed by repeat-primed polymerase chain reaction (RP-PCR) in a cohort of 385 probable/definite ALS Italian patients. Mean age at onset was 60.5 years (SD 13.7), and 60.9% were males. Sporadic cases were 357 (92.7%), and most patients had a spinal onset (71.8%). None of our patients showed the typical sawtooth tail pattern on RP-PCR, thus excluding abnormal repeat expansion in NOTCH2NLC. Overall, we suggest that NOTCH2NLC expanded alleles might be absent or at least extremely rare in ALS Italian patients. Further investigations in larger cohorts with different ethnic backgrounds are required to support the involvement of NOTCH2NLC in ALS.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Peptídeos e Proteínas de Sinalização Intercelular
/
Esclerose Lateral Amiotrófica
/
Proteínas do Tecido Nervoso
Limite:
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
Asia
/
Europa
Idioma:
En
Revista:
Sci Rep
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Itália