SCIENTIFIC BACKGROUND

CEP290, GLIS2, INVS, IQCB1, NPHP1, NPHP3, NPHP4

Scientific Background

Nephronophthisis (NPHP) is an autosomal recessive inherited tubulointerstitial kidney disease, which belongs to the so-called ciliopathies. It is caused by a dysfunction of primary cilia. The incidence in Europe is estimated at approximately 1:50,000. The kidneys may be affected in isolation, but extrarenal manifestations such as retinitis pigmentosa (Senior-Løken syndrome), oculomotor apraxia (Cogan syndrome) as well as optic nerve coloboma and cerebellar vermis aplasia (Joubert syndrome) are also observed in 10‑40% of patients. The disease is phenotypically and genetically heterogeneous. So far, pathogenic variants in over 25 genes have been identified in association with NPHP. NPHP is divided into infantile (<4 years), juvenile (about 13 years) and adolescent/adult (about 19 years) forms depending on the average age at which terminal renal failure occurs. The most frequent form is juvenile NPHP, in which a homozygous deletion of the NPHP1 gene can be found in about 30-60% of patients. No genetic cause can be found in about 40-60% of NPHP patients.

 

References

Titieni et König 2018, medgen 30:461 / Luo et Tao 2018, Nephrology (Carlton) 23:904 / König et al. 2017, Clin J Am Soc Nephrol 12:1974 / Chaki et al. 2011, Kidney Int 80:1239 / Hoefele et al. 2007, Der Nephrologe 2:372 / Hildebrandt & Omran 2001, Pediatr Nephrol 16:168 / Hildebrandt et al. 1997, Kidney 51:261

GENES

CEP290, GLIS2, INVS, IQCB1, NPHP1, NPHP3, NPHP4

ASSOCIATED TESTS

How to order

LATEST ARTICLES

Background information on in vitro diagnostic services Laboratory-based testing methods and medical devices play a critical role in diagnosis and ...

Read more

Traditional DNA tests may overlook 10% of classic in Familial Adenomatous Polyposis (FAP) cases. By integrating RNA sequencing, researchers unveiled ...

Read more

Overview In January 2024, the American Society of Clinical Oncology (ASCO) and the Society of Surgical Oncology (SSO) published new recommendation...

Read more

Endometriosis is a chronic gynecological condition that affects 1 in 10 women of reproductive age worldwide [1]. It can manifest with the first menst...

Read more

Rare Disease Day is a global awareness day held annually to raise awareness of all rare diseases. It was first celebrated in 2008, on the rarest day ...

Read more

Cancer is a group of genetic diseases that can develop almost anywhere in the body. Many people in the world are affected by cancer every year. Follo...

Read more

Aiming to evaluate the role of chromosomal aneuploidy in pregnancy loss, a 2023 study 35 years in the making evaluated the genomic landscape of first...

Read more

Cancer is a complex genetic disease that affects millions of people in the world. It is one of the leading causes of death worldwide, with about ten ...

Read more

Researchers created a detailed map of the placenta during labor. By studying how maternal and fetal cells communicate, they discovered signals in the...

Read more

A recent paper published in Nature Medicine (1) aimed to identify genes and genomic biomarkers which can better predict outcomes and personalized the...

Read more