Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations
- Autores
- Maarouf, Chera L.; Daugs, Ian D.; Spina, Salvatore; Vidal, Ruben; Kokjohn, Tyler A.; Patton, R. Lyle; Kalback, Walter M.; Luehrs, Dean C.; Walker, Douglas G.; Castaño, Eduardo Miguel; Beach, Thomas G.; Ghetti, Bernardino; Roher, Alex E.
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- BACKGROUND: Mutations in the presenilin (PSEN) genes are associated with early-onset familial Alzheimer's disease (FAD). Biochemical characterizations and comparisons have revealed that many PSEN mutations alter gamma-secretase activity to promote accumulation of toxic Abeta42 peptides. In this study, we compared the histopathologic and biochemical profiles of ten FAD cases expressing independent PSEN mutations and determined the degradation patterns of amyloid-beta precursor protein (AbetaPP), Notch, N-cadherin and Erb-B4 by gamma-secretase. In addition, the levels of Abeta40/42 peptides were quantified by ELISA. RESULTS: We observed a wide variation in type, number and distribution of amyloid deposits and neurofibrillary tangles. Four of the ten cases examined exhibited a substantial enrichment in the relative proportions of Abeta40 over Abeta42. The AbetaPP N-terminal and C-terminal fragments and Tau species, assessed by Western blots and scanning densitometry, also demonstrated a wide variation. The Notch-1 intracellular domain was negligible by Western blotting in seven PSEN cases. There was significant N-cadherin and Erb-B4 peptide heterogeneity among the different PSEN mutations. CONCLUSION: These observations imply that missense mutations in PSEN genes can alter a range of key gamma-secretase activities to produce an array of subtly different biochemical, neuropathological and clinical manifestations. Beyond the broad common features of dementia, plaques and tangles, the various PSEN mutations resulted in a wide heterogeneity and complexity and differed from sporadic AD.
Fil: Maarouf, Chera L.. Sun Health Research Institute; Estados Unidos
Fil: Daugs, Ian D.. Sun Health Research Institute; Estados Unidos
Fil: Spina, Salvatore. Universita Degli Studi Di Siena; Italia. Indiana University; Estados Unidos
Fil: Vidal, Ruben. Indiana University; Estados Unidos
Fil: Kokjohn, Tyler A.. Sun Health Research Institute; Estados Unidos. Midwestern University; Estados Unidos
Fil: Patton, R. Lyle. Sun Health Research Institute; Estados Unidos
Fil: Kalback, Walter M.. Sun Health Research Institute; Estados Unidos
Fil: Luehrs, Dean C.. Sun Health Research Institute; Estados Unidos
Fil: Walker, Douglas G.. Sun Health Research Institute; Estados Unidos
Fil: Castaño, Eduardo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina
Fil: Beach, Thomas G.. Sun Health Research Institute; Estados Unidos
Fil: Ghetti, Bernardino. Indiana University; Estados Unidos
Fil: Roher, Alex E.. Sun Health Research Institute; Estados Unidos - Materia
-
presenilin
FAD
mutations - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/21115
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CONICET Digital (CONICET) |
spelling |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutationsMaarouf, Chera L.Daugs, Ian D.Spina, SalvatoreVidal, RubenKokjohn, Tyler A.Patton, R. LyleKalback, Walter M.Luehrs, Dean C.Walker, Douglas G.Castaño, Eduardo MiguelBeach, Thomas G.Ghetti, BernardinoRoher, Alex E.presenilinFADmutationshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1BACKGROUND: Mutations in the presenilin (PSEN) genes are associated with early-onset familial Alzheimer's disease (FAD). Biochemical characterizations and comparisons have revealed that many PSEN mutations alter gamma-secretase activity to promote accumulation of toxic Abeta42 peptides. In this study, we compared the histopathologic and biochemical profiles of ten FAD cases expressing independent PSEN mutations and determined the degradation patterns of amyloid-beta precursor protein (AbetaPP), Notch, N-cadherin and Erb-B4 by gamma-secretase. In addition, the levels of Abeta40/42 peptides were quantified by ELISA. RESULTS: We observed a wide variation in type, number and distribution of amyloid deposits and neurofibrillary tangles. Four of the ten cases examined exhibited a substantial enrichment in the relative proportions of Abeta40 over Abeta42. The AbetaPP N-terminal and C-terminal fragments and Tau species, assessed by Western blots and scanning densitometry, also demonstrated a wide variation. The Notch-1 intracellular domain was negligible by Western blotting in seven PSEN cases. There was significant N-cadherin and Erb-B4 peptide heterogeneity among the different PSEN mutations. CONCLUSION: These observations imply that missense mutations in PSEN genes can alter a range of key gamma-secretase activities to produce an array of subtly different biochemical, neuropathological and clinical manifestations. Beyond the broad common features of dementia, plaques and tangles, the various PSEN mutations resulted in a wide heterogeneity and complexity and differed from sporadic AD.Fil: Maarouf, Chera L.. Sun Health Research Institute; Estados UnidosFil: Daugs, Ian D.. Sun Health Research Institute; Estados UnidosFil: Spina, Salvatore. Universita Degli Studi Di Siena; Italia. Indiana University; Estados UnidosFil: Vidal, Ruben. Indiana University; Estados UnidosFil: Kokjohn, Tyler A.. Sun Health Research Institute; Estados Unidos. Midwestern University; Estados UnidosFil: Patton, R. Lyle. Sun Health Research Institute; Estados UnidosFil: Kalback, Walter M.. Sun Health Research Institute; Estados UnidosFil: Luehrs, Dean C.. Sun Health Research Institute; Estados UnidosFil: Walker, Douglas G.. Sun Health Research Institute; Estados UnidosFil: Castaño, Eduardo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Beach, Thomas G.. Sun Health Research Institute; Estados UnidosFil: Ghetti, Bernardino. Indiana University; Estados UnidosFil: Roher, Alex E.. Sun Health Research Institute; Estados UnidosBioMed Central2008-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21115Maarouf, Chera L.; Daugs, Ian D.; Spina, Salvatore; Vidal, Ruben; Kokjohn, Tyler A.; et al.; Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations; BioMed Central; Molecular Neurodegeneration; 3; 20; 11-2008; 1-181750-13261750-1326CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://molecularneurodegeneration.biomedcentral.com/articles/10.1186/1750-1326-3-20info:eu-repo/semantics/altIdentifier/doi/10.1186/1750-1326-3-20info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:58:32Zoai:ri.conicet.gov.ar:11336/21115instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:58:32.757CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
title |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
spellingShingle |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations Maarouf, Chera L. presenilin FAD mutations |
title_short |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
title_full |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
title_fullStr |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
title_full_unstemmed |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
title_sort |
Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations |
dc.creator.none.fl_str_mv |
Maarouf, Chera L. Daugs, Ian D. Spina, Salvatore Vidal, Ruben Kokjohn, Tyler A. Patton, R. Lyle Kalback, Walter M. Luehrs, Dean C. Walker, Douglas G. Castaño, Eduardo Miguel Beach, Thomas G. Ghetti, Bernardino Roher, Alex E. |
author |
Maarouf, Chera L. |
author_facet |
Maarouf, Chera L. Daugs, Ian D. Spina, Salvatore Vidal, Ruben Kokjohn, Tyler A. Patton, R. Lyle Kalback, Walter M. Luehrs, Dean C. Walker, Douglas G. Castaño, Eduardo Miguel Beach, Thomas G. Ghetti, Bernardino Roher, Alex E. |
author_role |
author |
author2 |
Daugs, Ian D. Spina, Salvatore Vidal, Ruben Kokjohn, Tyler A. Patton, R. Lyle Kalback, Walter M. Luehrs, Dean C. Walker, Douglas G. Castaño, Eduardo Miguel Beach, Thomas G. Ghetti, Bernardino Roher, Alex E. |
author2_role |
author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
presenilin FAD mutations |
topic |
presenilin FAD mutations |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
BACKGROUND: Mutations in the presenilin (PSEN) genes are associated with early-onset familial Alzheimer's disease (FAD). Biochemical characterizations and comparisons have revealed that many PSEN mutations alter gamma-secretase activity to promote accumulation of toxic Abeta42 peptides. In this study, we compared the histopathologic and biochemical profiles of ten FAD cases expressing independent PSEN mutations and determined the degradation patterns of amyloid-beta precursor protein (AbetaPP), Notch, N-cadherin and Erb-B4 by gamma-secretase. In addition, the levels of Abeta40/42 peptides were quantified by ELISA. RESULTS: We observed a wide variation in type, number and distribution of amyloid deposits and neurofibrillary tangles. Four of the ten cases examined exhibited a substantial enrichment in the relative proportions of Abeta40 over Abeta42. The AbetaPP N-terminal and C-terminal fragments and Tau species, assessed by Western blots and scanning densitometry, also demonstrated a wide variation. The Notch-1 intracellular domain was negligible by Western blotting in seven PSEN cases. There was significant N-cadherin and Erb-B4 peptide heterogeneity among the different PSEN mutations. CONCLUSION: These observations imply that missense mutations in PSEN genes can alter a range of key gamma-secretase activities to produce an array of subtly different biochemical, neuropathological and clinical manifestations. Beyond the broad common features of dementia, plaques and tangles, the various PSEN mutations resulted in a wide heterogeneity and complexity and differed from sporadic AD. Fil: Maarouf, Chera L.. Sun Health Research Institute; Estados Unidos Fil: Daugs, Ian D.. Sun Health Research Institute; Estados Unidos Fil: Spina, Salvatore. Universita Degli Studi Di Siena; Italia. Indiana University; Estados Unidos Fil: Vidal, Ruben. Indiana University; Estados Unidos Fil: Kokjohn, Tyler A.. Sun Health Research Institute; Estados Unidos. Midwestern University; Estados Unidos Fil: Patton, R. Lyle. Sun Health Research Institute; Estados Unidos Fil: Kalback, Walter M.. Sun Health Research Institute; Estados Unidos Fil: Luehrs, Dean C.. Sun Health Research Institute; Estados Unidos Fil: Walker, Douglas G.. Sun Health Research Institute; Estados Unidos Fil: Castaño, Eduardo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina Fil: Beach, Thomas G.. Sun Health Research Institute; Estados Unidos Fil: Ghetti, Bernardino. Indiana University; Estados Unidos Fil: Roher, Alex E.. Sun Health Research Institute; Estados Unidos |
description |
BACKGROUND: Mutations in the presenilin (PSEN) genes are associated with early-onset familial Alzheimer's disease (FAD). Biochemical characterizations and comparisons have revealed that many PSEN mutations alter gamma-secretase activity to promote accumulation of toxic Abeta42 peptides. In this study, we compared the histopathologic and biochemical profiles of ten FAD cases expressing independent PSEN mutations and determined the degradation patterns of amyloid-beta precursor protein (AbetaPP), Notch, N-cadherin and Erb-B4 by gamma-secretase. In addition, the levels of Abeta40/42 peptides were quantified by ELISA. RESULTS: We observed a wide variation in type, number and distribution of amyloid deposits and neurofibrillary tangles. Four of the ten cases examined exhibited a substantial enrichment in the relative proportions of Abeta40 over Abeta42. The AbetaPP N-terminal and C-terminal fragments and Tau species, assessed by Western blots and scanning densitometry, also demonstrated a wide variation. The Notch-1 intracellular domain was negligible by Western blotting in seven PSEN cases. There was significant N-cadherin and Erb-B4 peptide heterogeneity among the different PSEN mutations. CONCLUSION: These observations imply that missense mutations in PSEN genes can alter a range of key gamma-secretase activities to produce an array of subtly different biochemical, neuropathological and clinical manifestations. Beyond the broad common features of dementia, plaques and tangles, the various PSEN mutations resulted in a wide heterogeneity and complexity and differed from sporadic AD. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-11 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/21115 Maarouf, Chera L.; Daugs, Ian D.; Spina, Salvatore; Vidal, Ruben; Kokjohn, Tyler A.; et al.; Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations; BioMed Central; Molecular Neurodegeneration; 3; 20; 11-2008; 1-18 1750-1326 1750-1326 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/21115 |
identifier_str_mv |
Maarouf, Chera L.; Daugs, Ian D.; Spina, Salvatore; Vidal, Ruben; Kokjohn, Tyler A.; et al.; Histopathological and molecular heterogeneity among individuals with dementia associated with Presenilin mutations; BioMed Central; Molecular Neurodegeneration; 3; 20; 11-2008; 1-18 1750-1326 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://molecularneurodegeneration.biomedcentral.com/articles/10.1186/1750-1326-3-20 info:eu-repo/semantics/altIdentifier/doi/10.1186/1750-1326-3-20 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
BioMed Central |
publisher.none.fl_str_mv |
BioMed Central |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |