The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease

Late-onset sporadic Alzheimer’s disease (LOAD) seems to contain a “hidden” component that cannot be explained by classical Mendelian genetics, with advanced aging being the strongest risk factor. More surprisingly, whole genome sequencing analyses of early-onset sporadic Alzheimer’s disease cohorts...

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Main Authors: Ryan Hogan, Anthony Flamier, Eleonora Nardini, Gilbert Bernier
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/11/7/825
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author Ryan Hogan
Anthony Flamier
Eleonora Nardini
Gilbert Bernier
author_facet Ryan Hogan
Anthony Flamier
Eleonora Nardini
Gilbert Bernier
author_sort Ryan Hogan
collection DOAJ
description Late-onset sporadic Alzheimer’s disease (LOAD) seems to contain a “hidden” component that cannot be explained by classical Mendelian genetics, with advanced aging being the strongest risk factor. More surprisingly, whole genome sequencing analyses of early-onset sporadic Alzheimer’s disease cohorts also revealed that most patients do not present classical disease-associated variants or mutations. In this short review, we propose that <i>BMI1</i> is possibly epigenetically silenced in LOAD. Reduced <i>BMI1</i> expression is unique to LOAD compared to familial early-onset AD (EOAD) and other related neurodegenerative disorders; moreover, reduced expression of this single gene is sufficient to reproduce most LOAD pathologies in cellular and animal models. We also show the apparent amyloid and Tau-independent nature of this epigenetic alteration of <i>BMI1</i> expression. Lastly, examples of the mechanisms underlying epigenetic dysregulation of other LOAD-related genes are also illustrated.
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spelling doaj.art-3aeedd2f478740459f0e10c967df68522023-11-20T07:24:40ZengMDPI AGGenes2073-44252020-07-0111782510.3390/genes11070825The Role of BMI1 in Late-Onset Sporadic Alzheimer’s DiseaseRyan Hogan0Anthony Flamier1Eleonora Nardini2Gilbert Bernier3Stem Cell and Developmental Biology Laboratory, Hôpital Maisonneuve-Rosemont, 5415 Boul. l’Assomption, Montreal, QC H1T 2M4, CanadaWhitehead Institute of Biomedical Research, 455 Main Street, Cambridge, MA 02142, USAWhitehead Institute of Biomedical Research, 455 Main Street, Cambridge, MA 02142, USAStem Cell and Developmental Biology Laboratory, Hôpital Maisonneuve-Rosemont, 5415 Boul. l’Assomption, Montreal, QC H1T 2M4, CanadaLate-onset sporadic Alzheimer’s disease (LOAD) seems to contain a “hidden” component that cannot be explained by classical Mendelian genetics, with advanced aging being the strongest risk factor. More surprisingly, whole genome sequencing analyses of early-onset sporadic Alzheimer’s disease cohorts also revealed that most patients do not present classical disease-associated variants or mutations. In this short review, we propose that <i>BMI1</i> is possibly epigenetically silenced in LOAD. Reduced <i>BMI1</i> expression is unique to LOAD compared to familial early-onset AD (EOAD) and other related neurodegenerative disorders; moreover, reduced expression of this single gene is sufficient to reproduce most LOAD pathologies in cellular and animal models. We also show the apparent amyloid and Tau-independent nature of this epigenetic alteration of <i>BMI1</i> expression. Lastly, examples of the mechanisms underlying epigenetic dysregulation of other LOAD-related genes are also illustrated.https://www.mdpi.com/2073-4425/11/7/825BMI1Alzheimer’s diseaselate-onsetsporadicepigenetics
spellingShingle Ryan Hogan
Anthony Flamier
Eleonora Nardini
Gilbert Bernier
The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease
Genes
BMI1
Alzheimer’s disease
late-onset
sporadic
epigenetics
title The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease
title_full The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease
title_fullStr The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease
title_full_unstemmed The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease
title_short The Role of BMI1 in Late-Onset Sporadic Alzheimer’s Disease
title_sort role of bmi1 in late onset sporadic alzheimer s disease
topic BMI1
Alzheimer’s disease
late-onset
sporadic
epigenetics
url https://www.mdpi.com/2073-4425/11/7/825
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