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BMC Nephrol. 2011 Oct 18;12:57. doi: 10.1186/1471-2369-12-57.

High Resolution Melt analysis for mutation screening in PKD1 and PKD2.

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1
EA 4263 Thérapie des Maladies Génétiques, Faculté de Médecine, Université de la Méditerranée, Boulevard Jean Moulin 13005 Marseille, France.

Abstract

BACKGROUND:

Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disorder. It is characterized by focal development and progressive enlargement of renal cysts leading to end-stage renal disease. PKD1 and PKD2 have been implicated in ADPKD pathogenesis but genetic features and the size of PKD1 make genetic diagnosis tedious.

METHODS:

We aim to prove that high resolution melt analysis (HRM), a recent technique in molecular biology, can facilitate molecular diagnosis of ADPKD. We screened for mutations in PKD1 and PKD2 with HRM in 37 unrelated patients with ADPKD.

RESULTS:

We identified 440 sequence variants in the 37 patients. One hundred and thirty eight were different. We found 28 pathogenic mutations (25 in PKD1 and 3 in PKD2 ) within 28 different patients, which is a diagnosis rate of 75% consistent with literature mean direct sequencing diagnosis rate. We describe 52 new sequence variants in PKD1 and two in PKD2.

CONCLUSION:

HRM analysis is a sensitive and specific method for molecular diagnosis of ADPKD. HRM analysis is also costless and time sparing. Thus, this method is efficient and might be used for mutation pre-screening in ADPKD genes.

PMID:
22008521
PMCID:
PMC3206831
DOI:
10.1186/1471-2369-12-57
[Indexed for MEDLINE]
Free PMC Article
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