Review Article

Molecular and Genetic Basis of Inherited Nephrotic Syndrome

Table 1

Glomerular inherited diseases.

DiseaseGene locusGeneExons (n°)mRNA (kb)ProteinAnimal modelReferences

Autosomal dominant renal coloboma syndrome (RCS)10q24.3–q25.1PAX-2113.5 kbPaired box gene 2 (PAX-2), transcription factorPAX2−/− knockout mice: lack kidneys.[28]

(i) Denys-Drash and Frasier syndromes
(ii) Wilms tumor
11p13WT-193 kbWilms’ tumor 1 (WT1), transcription factorWT1−/− knockout mice: lack kidneys. Rose et al.; Cell, 1990.

Nail-patella syndrome9q33.3LMX-1B81.1 kbM homeobox transcription factor 1, betaLMX1B−/− knockout mice: reduced numbers of podocyte foot processes, absence of SD and GBM abnormalities.[29]

Alport syndrome (AS)Xq22.3COL4A5516.4 kbType IV collagen, alpha 5 chainCanine X-linked hereditary nephritis: transcription of COL4A5 gene was reduced by a factor of 10 in the affected dog.Barker et al.; Science, 1990 [30]

(i) May-Hegglin anomaly
(ii) Sebastian syndrome (SBS)
(iii) Fechtner syndrome (FTNS)
(iv) Epstein syndrome (EPTS)
22q12.3–13.1MYH9407.2 kbNonmuscle myosin heavy chain IIA (NMMHC-IIA)      —[31]

Minimal change disease (MCD)3p21DAG135.4 kbDystrophin-associated glycoprotein 1DAG1−/− mice: developmental abnormalities.[32]

CNS of Finnish type (CNF)19q13.1NPHS1294.3 kbNephrinNPHS1−/− knockout mice: nephrotic syndrome, perinatal lethality, and effacement of podocyte foot processes.Kestilä et al.; Molec Cell, 1998 [33].

Steroid-resistant NS (SRNS)1q25–q31NPHS281.8 kbPodocin      —Boute et al.; Nature Genet, 2000 [34].

Focal segmental glomerulosclerosis (FSGS)6p12CD2AP184.6 kbCD2-associated proteinCD2AP−/− knockout mice: compromised immune function and death of massive proteinuria shortly after birth.Kim et al.; Science, 2003 [35].

Focal segmental glomerulosclerosis (FSGS)19q13ACTN4212.9 kbα-actninin-4ACTN4−/− mice: progressive proteinuria, glomerular disease, death by several months of age.Kaplan et al.; Nature Genet, 2000 [36].

Focal segmental glomerulosclerosis (FSGS)11q21-q22TRPC6134.5 kbTransient receptor potential channel 6      —Winn et al.; Science 2005 [37].
Reiser et al.; Nat Genet 2005 [38].

Unknown1q21–q25KIRREL
o NEPH1
149 kbNephrin-like 1 (NEPH1)NEPH1−/− knockout mice: nephrotic syndrome, perinatal lethality, and effacement of podocyte foot processes.Donoviel et al.; Molec Cell Biol, 2001 [39].

Unknown19q13.1NLG1/NEPH3152.5/3.5 kbFiltrin      —Ihalmo et al.; Biochem Biophys Res Commun, 2003 [40].
Sellin et al.; FASEB J, 2003 [41].

Clear cell renal carcinoma4q34-q35FAT2414.7 kbFAT tumor suppressor homolog 1 (Drosophila)FAT−/− knockout mice: perinatal lethality.[42]