Cited by 4,806Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration Mechanisms

Hypothetical model of dynamic biomarkers of the Alzheimer's pathological cascade

Open access
Jack, Clifford R, Knopman, David S, Jagust, William J, Shaw, Leslie M, Aisen, Paul S, Weiner, Michael W, Petersen, Ronald C, Trojanowski, John Q·2010·The Lancet Neurology

Abstract

Currently available evidence strongly supports the position that the initiating event in Alzheimer's disease (AD) is related to abnormal processing of beta-amyloid (Abeta) peptide, ultimately leading to formation of Abeta plaques in the brain. This process occurs while individuals are still cognitively normal. Biomarkers of brain beta-amyloidosis are reductions in CSF Abeta(42) and increased amyloid PET tracer retention. After a lag period, which varies from patient to patient, neuronal dysfunction and neurodegeneration become the dominant pathological processes. Biomarkers of neuronal injury and neurodegeneration are increased CSF tau and structural MRI measures of cerebral atrophy. Neurodegeneration is accompanied by synaptic dysfunction, which is indicated by decreased fluorodeoxyglucose uptake on PET. We propose a model that relates disease stage to AD biomarkers in which Abeta biomarkers become abnormal first, before neurodegenerative biomarkers and cognitive symptoms, and neurodegenerative biomarkers become abnormal later, and correlate with clinical symptom severity.

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Registry

Crossref · 10.1016/s1474-4422(09)70299-6

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107 of 107 references verified0 citation errors · 0 not checkable

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  • Volumetric decline occurs initially in medial temporal lobe grey matter, following tau protein deposition, and is closely correlated to cognitive decline.

    “These investigations have established that volumetric decline occurs initially in medial temporal lobe grey matter, following tau protein deposition, and is closely correlated to cognitive decline.”

    From White matter microstructural abnormality precedes cortical volumetric decline in Alzheimer’s disease: evidence from data-driven disease progression modelling (2022) · cites this paper as Jack Jr. et al 2010

    In “Use of biomarkers to stage AD,” the paper says cerebral atrophy begins in medial temporal limbic areas. “Biomarkers of neurodegeneration” reports a strong correlation between atrophy and cognitive decline. The temporal-ordering section places abnormal CSF tau before MRI atrophy, but does not establish that tau protein deposition itself precedes the volumetric decline. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • On the regional level, abnormality is evident in medial temporal lobe areas first (hippocampus and entorhinal cortex), then in lateral temporal lobe areas (mid-temporal gyrus and fusiform gyrus) and finally in frontal lobe areas.

    “On the regional level, abnormality is evident in medial temporal lobe areas first (hippocampus and entorhinal cortex), then in lateral temporal lobe areas (mid-temporal gyrus and fusiform gyrus) and finally in frontal lobe areas (Jack Jr. et al 2010, Young et al 2014).”

    From White matter microstructural abnormality precedes cortical volumetric decline in Alzheimer’s disease: evidence from data-driven disease progression modelling (2022) · cites this paper as Jack Jr. et al 2010

    In “Biomarker abnormalities precede clinical symptoms” (page unavailable), the paper says neurofibrillary tangles in asymptomatic individuals tend to be confined to the entorhinal cortex, whereas they are more widespread in symptomatic individuals. “Biomarkers of neurodegeneration” (page unavailable) says the distribution of MRI atrophy maps onto Braak staging. These passages support an early entorhinal abnormality and later wider involvement, but do not establish the claimed sequence through the mid-temporal and fusiform gyri and finally the frontal lobe. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Measures of all biomarkers studied to date have considerable overlap with those found in other types of dementia and cognitively normal elderly, making it difficult to determine whether cognitive impairment is due to AD or another process.

    “because measures of all biomarkers studied to date have considerable overlap with those found other types of dementia (as well the cognitively normal elderly population), it remains difficult to determine whether or not cognitive impairment is due to AD or another more dominant and concurrent process.”

    From Accuracy of the Clinical Diagnosis of Alzheimer Disease at National Institute on Aging Alzheimer Disease Centers, 2005–2010 (2012) · cites this paper as [1]

    The section ‘Biomarker abnormalities precede clinical symptoms’ (page not provided) reports amyloid-biomarker abnormalities in 20–40% of cognitively normal elderly people, and ‘AD clinical features and pathological changes’ notes that dementia in older patients often has multiple underlying pathologies. The ‘Biomarkers of neurodegeneration’ section also says CSF tau is not specific to AD. These passages support diagnostic ambiguity, but not the broader assertion that all biomarkers studied have considerable overlap with both other dementias and cognitively normal elderly people. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Cognitive decline is more closely correlated to neurodegeneration than tau accumulation.

    “Firstly, cognitive decline is more closely correlated to neurodegeneration than tau accumulation (Jack Jr. et al 2010).”
  • Alzheimer's disease is characterized by deposition of hallmark pathological peptides and neurodegeneration that progress across partially overlapping neuroanatomical and temporal axes.

    “Alzheimer’s disease (AD) is characterized by deposition of hallmark pathological peptides and neurodegeneration that progress across partially overlapping neuroanatomical and temporal axes1,2.”

    From Integrated multimodal cell atlas of Alzheimer’s disease (2024) · cites this paper as [2]

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Research works printed but not linked: 9

  1. [8]Chetelat G Desgranges B de la Sayette V Viader F Eustache F Baron JC Mild cognitive impairment: can FDG-PET predict who is to rapidly convert to Alzheimer’s disease? Neurology 2003 60 1374 1377 12707450
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  3. [41]Blennow K Wallin A Agren H Spenger C Siegfried J Vanmechelen E Tau protein in cerebrospinal fluid: a biochemical marker for axonal degeneration in Alzheimer disease? Mol Chem Neuropathol 1995 26 231 245 8748926
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  7. [88]Vemuri P Wiste HJ Weigand SD MRI and CSF biomarkers in normal, MCI, and AD subjects: diagnostic discrimination and cognitive correlations Neurology 2009 73 287 293 19636048 PMC2715210
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  9. [112]Lambert JC Heath S Even G Genome-wide association study identifies variants at CLU and CR1 associated with Alzheimer’s disease Nat Genet 2009 41 1094 1099 19734903

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Authors
Jack, C. R., Knopman, D. S., Jagust, W. J., Shaw, L. M., Aisen, P. S., Weiner, M. W., Petersen, R. C., & Trojanowski, J. Q.
Affiliations
  • Mayo Clinic (US)
  • University of California, Berkeley (US)
  • University of Pennsylvania (US)
  • University of California San Diego (US)
  • University of California, San Francisco (US)
Corresponding author
Jack, Clifford R
Venue
The Lancet Neurology
Publisher
Elsevier BV
Published
2010-01
Volume
9
Issue
1
Pages
119-128
ISSN
1474-4422 (ISSN-L)
OpenAlex
W2167840686
Cited by
4,806
References
107
Citations by year
2026: 273 · 2025: 317 · 2024: 278 · 2023: 259 · 2022: 308 · 2021: 321 · 2020: 359 · 2019: 303 · 2018: 267 · 2017: 283 · 2016: 265 · 2015: 273 · 2014: 335 · 2013: 337 · 2012: 301
FWCI
127.41
Type
journal article
Language
en
Open access
Locations
  • The Lancet Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (AG11378)
  • National Institute on Aging
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
Alzheimer's disease, amyloid-beta, amyloid PET, tau protein, brain atrophy, FDG-PET, synaptic dysfunction, neurodegeneration, disease stage, biomarkers, cognitive decline
MeSH terms
Aging, Alzheimer Disease, Brain, Cognition Disorders, Humans, Magnetic Resonance Imaging, Models, Neurological, Time Factors, Signal Transduction, Biomarkers, Amyloid beta-Peptides, tau Proteins, Disease Progression, Positron-Emission Tomography, Apolipoprotein E4, Plaque, Amyloid

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