PreprintCited by 1Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration Mechanisms

Human brain aging heterogeneity observed from multi-region omics data reveals a subtype closely related to Alzheimer’s disease

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Peng, Shouneng, Wang, Erming, Wang, Minghui, Wang, Xusheng, Yu, Kaiwen, Fu, Yingxue, Poudel, Suresh, Ho, Lap +9 more·2024·bioRxiv (Cold Spring Harbor Laboratory)

Abstract

INTRODUCTION: The interconnection between brain aging and Alzheimer’s disease (AD) remain to be elucidated. METHODS: We investigated multi-omics (transcriptomics and proteomics) data from multiple brain regions (i.e., the hippocampus (HIPP), prefrontal cortex (PFC), and cerebellum (CRBL)) in cognitively normal individuals. RESULTS: We found that brain samples could be divided into ADL (AD-like) and NL (normal) subtypes which were correlated across brain regions. The differentially expressed genes in the ADL samples highly overlapped with AD gene signatures and the changes were consistent across brain regions (PFC and HIPP) in the multi-omics data. Intriguingly, the ADL subtype in PFC showed more differentially expressed genes than other brain regions, which could be explained by the baseline gene expression differences in the PFC NL samples. DISCUSSION: We conclude that brain aging heterogeneity widely exists, and our findings corroborate with the hypothesis that AD-related changes occur decades before the clinical manifestation of cognitive impairment in a sub-population.

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Crossref · 10.1101/2024.03.01.582970

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Authors
Peng, S., Wang, E., Wang, M., Wang, X., Yu, K., Fu, Y., Poudel, S., Ho, L., Narayan, S., Huffman, D. M., Gaiteri, C., Bennet, D. A., Ehrlich, M. E., Haroutunian, V., Peng, J., Zhang, B., & Tu, Z.
Affiliations
  • Icahn School of Medicine at Mount Sinai (US)
  • St. Jude Children's Research Hospital (US)
  • Albert Einstein College of Medicine (US)
  • SUNY Upstate Medical University (US)
  • Rush University Medical Center (US)
  • James J. Peters VA Medical Center (US)
Corresponding author
Tu, Zhidong
Venue
bioRxiv (Cold Spring Harbor Laboratory)
Publisher
openRxiv
Published
2024-03-05
OpenAlex
W4392454005
Cited by
1
References
5
Citations by year
2025: 1
Type
posted content
Language
en
Open access
Licence
cc-by-nc-nd
Locations
bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
Funders
  • National Institutes of Health
  • National Institute on Aging (R01AG017917, P30 AG72975, P30-AG 10161, R01‐AG17917, R01 AG15819, U01‐AG61356, U01AG046152, R01AG015819, P30AG010161, U01AG061356, U01‐AG46152, P30AG072975)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
brain aging, Alzheimer's disease, aging heterogeneity, prefrontal cortex, hippocampus, cerebellum, transcriptomics, proteomics, multi-omics integration, differentially expressed genes, cognitively normal individuals, early biomarkers, gene expression signatures

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