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Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias
Cumulative data suggest the involvement of Fyn tyrosine kinase in Alzheimer's disease (AD). Previously, our group has shown increased immunoreactivities of the FynT isoform in AD neocortex (with no change in the alternatively spliced FynB isoform) which associated with neurofibrillary degenerat...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8017997/ https://www.ncbi.nlm.nih.gov/pubmed/33128789 http://dx.doi.org/10.1111/bpa.12917 |
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author | Low, Clara Y. B. Lee, Jasinda H. Lim, Frances T. W. Lee, Chingli Ballard, Clive Francis, Paul T. Lai, Mitchell K. P. Tan, Michelle G. K. |
author_facet | Low, Clara Y. B. Lee, Jasinda H. Lim, Frances T. W. Lee, Chingli Ballard, Clive Francis, Paul T. Lai, Mitchell K. P. Tan, Michelle G. K. |
author_sort | Low, Clara Y. B. |
collection | PubMed |
description | Cumulative data suggest the involvement of Fyn tyrosine kinase in Alzheimer's disease (AD). Previously, our group has shown increased immunoreactivities of the FynT isoform in AD neocortex (with no change in the alternatively spliced FynB isoform) which associated with neurofibrillary degeneration and reactive astrogliosis. Since both the aforementioned neuropathological features are also variably found in Lewy Body dementias (LBD), we investigated potential perturbations of Fyn expression in the post‐mortem neocortex of patients with AD, as well as those diagnosed as having one of the two main subgroups of LBD: Parkinson's disease dementia (PDD) and dementia with Lewy bodies (DLB). We found selective upregulation of FynT expression in AD, PDD, and DLB which also correlated with cognitive impairment. Furthermore, increased FynT expression correlated with hallmark neuropathological lesions, soluble β‐amyloid, and phosphorylated tau, as well as markers of microglia and astrocyte activation. In line with the human post‐mortem studies, cortical FynT expression in aged mice transgenic for human P301S tau was upregulated and further correlated with accumulation of aggregated phosphorylated tau as well as with microglial and astrocytic markers. Our findings provide further evidence for the involvement of FynT in neurodegenerative dementias, likely via effects on tauopathy and neuroinflammation. |
format | Online Article Text |
id | pubmed-8017997 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-80179972021-09-03 Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias Low, Clara Y. B. Lee, Jasinda H. Lim, Frances T. W. Lee, Chingli Ballard, Clive Francis, Paul T. Lai, Mitchell K. P. Tan, Michelle G. K. Brain Pathol Research Articles Cumulative data suggest the involvement of Fyn tyrosine kinase in Alzheimer's disease (AD). Previously, our group has shown increased immunoreactivities of the FynT isoform in AD neocortex (with no change in the alternatively spliced FynB isoform) which associated with neurofibrillary degeneration and reactive astrogliosis. Since both the aforementioned neuropathological features are also variably found in Lewy Body dementias (LBD), we investigated potential perturbations of Fyn expression in the post‐mortem neocortex of patients with AD, as well as those diagnosed as having one of the two main subgroups of LBD: Parkinson's disease dementia (PDD) and dementia with Lewy bodies (DLB). We found selective upregulation of FynT expression in AD, PDD, and DLB which also correlated with cognitive impairment. Furthermore, increased FynT expression correlated with hallmark neuropathological lesions, soluble β‐amyloid, and phosphorylated tau, as well as markers of microglia and astrocyte activation. In line with the human post‐mortem studies, cortical FynT expression in aged mice transgenic for human P301S tau was upregulated and further correlated with accumulation of aggregated phosphorylated tau as well as with microglial and astrocytic markers. Our findings provide further evidence for the involvement of FynT in neurodegenerative dementias, likely via effects on tauopathy and neuroinflammation. John Wiley and Sons Inc. 2021-01-29 /pmc/articles/PMC8017997/ /pubmed/33128789 http://dx.doi.org/10.1111/bpa.12917 Text en © 2020 The Authors. Brain Pathology published by John Wiley & Sons Ltd on behalf of International Society of Neuropathology This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Low, Clara Y. B. Lee, Jasinda H. Lim, Frances T. W. Lee, Chingli Ballard, Clive Francis, Paul T. Lai, Mitchell K. P. Tan, Michelle G. K. Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias |
title | Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias |
title_full | Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias |
title_fullStr | Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias |
title_full_unstemmed | Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias |
title_short | Isoform‐specific upregulation of FynT kinase expression is associated with tauopathy and glial activation in Alzheimer's disease and Lewy body dementias |
title_sort | isoform‐specific upregulation of fynt kinase expression is associated with tauopathy and glial activation in alzheimer's disease and lewy body dementias |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8017997/ https://www.ncbi.nlm.nih.gov/pubmed/33128789 http://dx.doi.org/10.1111/bpa.12917 |
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