Alzheimer disease-associated cystatin C variant undergoes impaired secretion

CST3 is the coding gene for cystatin C (CysC). CST3 B/B homozygosity is associated with an increased risk of developing Alzheimer disease. We performed CysC analysis on human primary skin fibroblasts obtained from donors carrying A/A, A/B, and B/B CST3. Pulse-chase experiments demonstrated that the...

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Main Authors: Luisa Benussi, Roberta Ghidoni, Tiana Steinhoff, Antonella Alberici, Aldo Villa, Federica Mazzoli, Francesca Nicosia, Laura Barbiero, Laura Broglio, Enrica Feudatari, Simona Signorini, Ulrich Finckh, Roger M. Nitsch, Giuliano Binetti
Format: Article
Language:English
Published: Elsevier 2003-06-01
Series:Neurobiology of Disease
Online Access:http://www.sciencedirect.com/science/article/pii/S0969996103000123
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author Luisa Benussi
Roberta Ghidoni
Tiana Steinhoff
Antonella Alberici
Aldo Villa
Federica Mazzoli
Francesca Nicosia
Laura Barbiero
Laura Broglio
Enrica Feudatari
Simona Signorini
Ulrich Finckh
Roger M. Nitsch
Giuliano Binetti
author_facet Luisa Benussi
Roberta Ghidoni
Tiana Steinhoff
Antonella Alberici
Aldo Villa
Federica Mazzoli
Francesca Nicosia
Laura Barbiero
Laura Broglio
Enrica Feudatari
Simona Signorini
Ulrich Finckh
Roger M. Nitsch
Giuliano Binetti
author_sort Luisa Benussi
collection DOAJ
description CST3 is the coding gene for cystatin C (CysC). CST3 B/B homozygosity is associated with an increased risk of developing Alzheimer disease. We performed CysC analysis on human primary skin fibroblasts obtained from donors carrying A/A, A/B, and B/B CST3. Pulse-chase experiments demonstrated that the release of the B variant of CysC has a different temporal pattern compared to that of the A one. Fibroblasts B/B homozygous displayed a reduced secretion of CysC due to a less efficient cleavage of the signal peptide, as suggested by high-resolution Western blot analysis and by in vitro assay. In the brain, the reduced level of CysC may represent the molecular factor responsible for the increased risk of Alzheimer disease.
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spelling doaj.art-30bfaa7317784c41b8c32651ef6450242022-12-21T21:57:44ZengElsevierNeurobiology of Disease1095-953X2003-06-011311521Alzheimer disease-associated cystatin C variant undergoes impaired secretionLuisa Benussi0Roberta Ghidoni1Tiana Steinhoff2Antonella Alberici3Aldo Villa4Federica Mazzoli5Francesca Nicosia6Laura Barbiero7Laura Broglio8Enrica Feudatari9Simona Signorini10Ulrich Finckh11Roger M. Nitsch12Giuliano Binetti13Neurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyNeurobiology Lab, IRCCS Centro San Giovanni di Dio, Italy; Department of Psychiatry Research, University of Zurich, Switzerland; Department of Human Genetics, University Hospital, Hamburg-Eppendorf, GermanyCST3 is the coding gene for cystatin C (CysC). CST3 B/B homozygosity is associated with an increased risk of developing Alzheimer disease. We performed CysC analysis on human primary skin fibroblasts obtained from donors carrying A/A, A/B, and B/B CST3. Pulse-chase experiments demonstrated that the release of the B variant of CysC has a different temporal pattern compared to that of the A one. Fibroblasts B/B homozygous displayed a reduced secretion of CysC due to a less efficient cleavage of the signal peptide, as suggested by high-resolution Western blot analysis and by in vitro assay. In the brain, the reduced level of CysC may represent the molecular factor responsible for the increased risk of Alzheimer disease.http://www.sciencedirect.com/science/article/pii/S0969996103000123
spellingShingle Luisa Benussi
Roberta Ghidoni
Tiana Steinhoff
Antonella Alberici
Aldo Villa
Federica Mazzoli
Francesca Nicosia
Laura Barbiero
Laura Broglio
Enrica Feudatari
Simona Signorini
Ulrich Finckh
Roger M. Nitsch
Giuliano Binetti
Alzheimer disease-associated cystatin C variant undergoes impaired secretion
Neurobiology of Disease
title Alzheimer disease-associated cystatin C variant undergoes impaired secretion
title_full Alzheimer disease-associated cystatin C variant undergoes impaired secretion
title_fullStr Alzheimer disease-associated cystatin C variant undergoes impaired secretion
title_full_unstemmed Alzheimer disease-associated cystatin C variant undergoes impaired secretion
title_short Alzheimer disease-associated cystatin C variant undergoes impaired secretion
title_sort alzheimer disease associated cystatin c variant undergoes impaired secretion
url http://www.sciencedirect.com/science/article/pii/S0969996103000123
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