Somatic Inactivation of Pkd2 Results in Polycystic Kidney Disease

Germline mutations in PKD2 cause autosomal dominant polycystic kidney disease. We have introduced a mutant exon 1 in tandem with the wild-type exon 1 at the mouse Pkd2 locus. This is an unstable allele that undergoes somatic inactivation by intragenic homologous recombination to produce a true null...

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Veröffentlicht in:Cell 1998-04, Vol.93 (2), p.177-188
Hauptverfasser: Wu, Guanqing, D'Agati, Vivette, Cai, Yiqiang, Markowitz, Glen, Park, Jong Hoon, Reynolds, David M, Maeda, Yoshiko, Le, Thanh C, Hou, Harry, Kucherlapati, Raju, Edelmann, Winfried, Somlo, Stefan
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container_end_page 188
container_issue 2
container_start_page 177
container_title Cell
container_volume 93
creator Wu, Guanqing
D'Agati, Vivette
Cai, Yiqiang
Markowitz, Glen
Park, Jong Hoon
Reynolds, David M
Maeda, Yoshiko
Le, Thanh C
Hou, Harry
Kucherlapati, Raju
Edelmann, Winfried
Somlo, Stefan
description Germline mutations in PKD2 cause autosomal dominant polycystic kidney disease. We have introduced a mutant exon 1 in tandem with the wild-type exon 1 at the mouse Pkd2 locus. This is an unstable allele that undergoes somatic inactivation by intragenic homologous recombination to produce a true null allele. Mice heterozygous and homozygous for this mutation, as well as Pkd +/− mice, develop polycystic kidney and liver lesions that are indistinguishable from the human phenotype. In all cases, renal cysts arise from renal tubular cells that lose the capacity to produce Pkd2 protein. Somatic loss of Pkd2 expression is both necessary and sufficient for renal cyst formation in ADPKD, suggesting that PKD2 occurs by a cellular recessive mechanism.
doi_str_mv 10.1016/S0092-8674(00)81570-6
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We have introduced a mutant exon 1 in tandem with the wild-type exon 1 at the mouse Pkd2 locus. This is an unstable allele that undergoes somatic inactivation by intragenic homologous recombination to produce a true null allele. Mice heterozygous and homozygous for this mutation, as well as Pkd +/− mice, develop polycystic kidney and liver lesions that are indistinguishable from the human phenotype. In all cases, renal cysts arise from renal tubular cells that lose the capacity to produce Pkd2 protein. 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We have introduced a mutant exon 1 in tandem with the wild-type exon 1 at the mouse Pkd2 locus. This is an unstable allele that undergoes somatic inactivation by intragenic homologous recombination to produce a true null allele. Mice heterozygous and homozygous for this mutation, as well as Pkd +/− mice, develop polycystic kidney and liver lesions that are indistinguishable from the human phenotype. In all cases, renal cysts arise from renal tubular cells that lose the capacity to produce Pkd2 protein. 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subjects Alleles
Animals
Clone Cells
Crosses, Genetic
DNA - analysis
Exons - genetics
Genotype
Kidney - chemistry
Kidney - pathology
Liver - pathology
Loss of Heterozygosity
Membrane Proteins - analysis
Membrane Proteins - genetics
Membrane Proteins - physiology
Mice
Mice, Knockout
Mutation - physiology
Polycystic Kidney, Autosomal Dominant - genetics
Polycystic Kidney, Autosomal Dominant - pathology
Recombination, Genetic
Restriction Mapping
RNA, Messenger - analysis
Stem Cells
TRPP Cation Channels
title Somatic Inactivation of Pkd2 Results in Polycystic Kidney Disease
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