Open AccessNovel somatic PBX1 mosaicism likely masking syndromic CAKUT in an adult with bilateral kidney hypoplasia
Author(s) -
Friederike Petzold,
Jin Wu,
Elena Hantmann,
Katharina Korbach,
Ria Schönauer,
Jan Halbritter
Publication year - 2022
Publication title -
clinical kidney journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.033
H-Index - 40
eISSN - 2048-8513
pISSN - 2048-8505
DOI - 10.1093/ckj/sfac092
Subject(s) - penetrance , germline mosaicism , medicine , hypoplasia , somatic cell , kidney disease , urinary system , kidney , polycystic kidney disease , expressivity , pathology , disease , genetics , phenotype , biology , gene
Congenital abnormalities of the kidney and urinary tract (CAKUT) are characterized by vast phenotypic heterogeneity and incomplete penetrance. Although CAKUT represent the main cause of pediatric chronic kidney disease, only ∼20% can be explained by single-gene disorders to date. While pathogenic alterations of PBX1 were recently associated with a severe form of syndromic CAKUT, most CAKUT patients survive childhood and adolescence to reach end-stage kidney disease later in life. Although somatic mosaicism is known to attenuate severity in other kidney diseases, it has rarely been described or systematically been assessed in CAKUT.