Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is one of the most common human genetic diseases. In addition to polycystic kidneys, the disease can cause cystic changes in liver and other organs, cardiac valvular insufficiency and cerebral arterial aneurysms. Using antibodies raised against the predicted gene product of PKD1, which is mutated in about 85% of ADPKD cases, we show that PKD1 is a 530-kD protein localized to the extracellular matrix of kidney, liver and cerebral blood vessels. We discovered that the PKD1 protein was highly expressed in the mesenchyme of developing kidney and liver, transiently localized in the developing glomerulus and juxtaglomerular apparatus and restricted to perivascular, extraglomerular areas in adult renal cortex. These data suggest that the PKD1 protein plays a role in renal and hepatic morphogenesis.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adult
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Amino Acid Sequence
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Animals
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Basement Membrane / metabolism
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Blood Vessels / metabolism*
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Brain / blood supply
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Extracellular Matrix / metabolism
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Fluorescent Antibody Technique
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Gene Expression
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Glomerular Mesangium / embryology
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Glomerular Mesangium / metabolism
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Humans
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Juxtaglomerular Apparatus / embryology
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Juxtaglomerular Apparatus / metabolism
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Kidney Cortex / embryology
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Kidney Cortex / metabolism
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Kidney Glomerulus / embryology
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Kidney Glomerulus / metabolism
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Liver / embryology
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Liver / metabolism
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Mesoderm / metabolism*
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Molecular Sequence Data
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Morphogenesis
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Peptide Fragments / chemistry
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Polycystic Kidney, Autosomal Dominant / metabolism*
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Protein Biosynthesis*
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Proteins / chemistry
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Proteins / genetics
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Proteins / isolation & purification
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Rabbits
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TRPP Cation Channels
Substances
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Peptide Fragments
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Proteins
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TRPP Cation Channels
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polycystic kidney disease 1 protein