Bi-allelic pathogenic variations in DNAJB11 cause Ivemark II syndrome, a renal-hepatic-pancreatic dysplasia.
Kidney Int
; 99(2): 405-409, 2021 02.
Article
en En
| MEDLINE
| ID: mdl-33129895
ABSTRACT
DNAJB11 (DnaJ Heat Shock Protein Family (Hsp40) Member B11) heterozygous loss of function variations have been reported in autosomal dominant cystic kidney disease with extensive fibrosis, associated with maturation and trafficking defect involving both the autosomal dominant polycystic kidney disease protein polycystin-1 and the autosomal dominant tubulointerstitial kidney disease protein uromodulin. Here we show that biallelic pathogenic variations in DNAJB11 lead to a severe fetal disease including enlarged cystic kidneys, dilation and proliferation of pancreatic duct cells, and liver ductal plate malformation, an association known as Ivemark II syndrome. Cysts of the kidney were developed exclusively from uromodulin negative tubular segments. In addition, tubular cells from the affected kidneys had elongated primary cilia, a finding previously reported in ciliopathies. Thus, our data show that the recessive disease associated with DNAJB11 variations is a ciliopathy rather than a disease of the autosomal dominant tubulointerstitial kidney disease spectrum, and prompt screening of DNAJB11 in fetal hyperechogenic/cystic kidneys.
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Texto completo:
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Bases de datos:
MEDLINE
Asunto principal:
Anomalías Múltiples
/
Riñón Poliquístico Autosómico Dominante
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Enfermedades Renales Poliquísticas
Límite:
Humans
Idioma:
En
Revista:
Kidney Int
Año:
2021
Tipo del documento:
Article
País de afiliación:
Francia