TY  - JOUR
A1  - Brodehl, Andreas
A1  - Meshkov, Alexey
A1  - Myasnikov, Roman
A1  - Kiseleva, Anna
A1  - Kulikova, Olga
A1  - Klauke, Bärbel
A1  - Sotnikova, Evgeniia
A1  - Stanasiuk, Caroline
A1  - Divashuk, Mikhail
A1  - Pohl, Greta Marie
A1  - Kudryavtseva, Maria
A1  - Klingel, Karin
A1  - Gerull, Brenda
A1  - Zharikova, Anastasia
A1  - Gummert, Jan
A1  - Koretskiy, Sergey
A1  - Schubert, Stephan
A1  - Mershina, Elena
A1  - Gärtner, Anna
A1  - Pilus, Polina
A1  - Laser, Kai Thorsten
A1  - Sinitsyn, Valentin
A1  - Boytsov, Sergey
A1  - Drapkina, Oxana
A1  - Milting, Hendrik
T1  - Hemi- and homozygous loss-of-function mutations in DSG2 (desmoglein-2) cause recessive arrhythmogenic cardiomyopathy with an early onset
JF  - International Journal of Molecular Sciences
N2  - About 50% of patients with arrhythmogenic cardiomyopathy (ACM) carry a pathogenic or likely pathogenic mutation in the desmosomal genes. However, there is a significant number of patients without positive familial anamnesis. Therefore, the molecular reasons for ACM in these patients are frequently unknown and a genetic contribution might be underestimated. Here, we used a next-generation sequencing (NGS) approach and in addition single nucleotide polymor-phism (SNP) arrays for the genetic analysis of two independent index patients without familial medical history. Of note, this genetic strategy revealed a homozygous splice site mutation (DSG2–c.378+1G>T) in the first patient and a nonsense mutation (DSG2–p.L772X) in combination with a large deletion in DSG2 in the second one. In conclusion, a recessive inheritance pattern is likely for both cases, which might contribute to the hidden medical history in both families. This is the first report about these novel loss-of-function mutations in DSG2 that have not been previously identi-fied. Therefore, we suggest performing deep genetic analyses using NGS in combination with SNP arrays also for ACM index patients without obvious familial medical history. In the future, this finding might has relevance for the genetic counseling of similar cases.
KW  - desmoglein-2
KW  - desmocollin-2
KW  - DSG2
KW  - DSC2
KW  - ARVC
KW  - ACM
KW  - LVNC
KW  - cardiomyopathy
KW  - desmosomes
KW  - desmin
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-285279
SN  - 1422-0067
VL  - 22
IS  - 7
ER  - 
TY  - JOUR
A1  - Brodehl, Andreas
A1  - Milting, Hendrik
A1  - Gerull, Brenda
T1  - Special Issue “Cardiovascular Genetics”
JF  - Genes
N2  - No abstract available
KW  - cardiovascular genetics
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-234229
SN  - 2073-4425
VL  - 12
IS  - 4
ER  - 
TY  - JOUR
A1  - Brodehl, Andreas
A1  - Pour Hakimi, Seyed Ahmad
A1  - Stanasiuk, Caroline
A1  - Ratnavadivel, Sandra
A1  - Hendig, Doris
A1  - Gaertner, Anna
A1  - Gerull, Brenda
A1  - Gummert, Jan
A1  - Paluszkiewicz, Lech
A1  - Milting, Hendrik
T1  - Restrictive cardiomyopathy is caused by a novel homozygous desmin (DES) mutation p.Y122H leading to a severe filament assembly defect
JF  - Genes
N2  - Here, we present a small Iranian family, where the index patient received a diagnosis of restrictive cardiomyopathy (RCM) in combination with atrioventricular (AV) block. Genetic analysis revealed a novel homozygous missense mutation in the DES gene (c.364T > C; p.Y122H), which is absent in human population databases. The mutation is localized in the highly conserved coil-1 desmin subdomain. In silico, prediction tools indicate a deleterious effect of the desmin (DES) mutation p.Y122H. Consequently, we generated an expression plasmid encoding the mutant and wildtype desmin formed, and analyzed the filament formation in vitro in cardiomyocytes derived from induced pluripotent stem cells and HT-1080 cells. Confocal microscopy revealed a severe filament assembly defect of mutant desmin supporting the pathogenicity of the DES mutation, p.Y122H, whereas the wildtype desmin formed regular intermediate filaments. According to the guidelines of the American College of Medical Genetics and Genomics, we classified this mutation, therefore, as a novel pathogenic mutation. Our report could point to a recessive inheritance of the DES mutation, p.Y122H, which is important for the genetic counseling of similar families with restrictive cardiomyopathy caused by DES mutations.
KW  - cardiovascular genetics
KW  - restrictive cardiomyopathy
KW  - desmin
KW  - intermediate filaments
KW  - desmin-related myopathy
KW  - cardiomyopathy
KW  - desminopathy
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-193121
SN  - 2073-4425
VL  - 10
IS  - 11
ER  -