Cited by 264Sphingolipid Metabolism and SignalingLysosomal Storage Disorders ResearchAlzheimer's disease research and treatments

Increased ceramide in brains with Alzheimer's and other neurodegenerative diseases

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Filippov, Valery, Song, Minwoo Andrew, Zhang, Kangling, Vinters, Harry V., Tung, Spencer, Kirsch, Wolff M., Yang, Jun, Duerksen-Hughes, Penelope J.·2012·Journal of Alzheimer s Disease

Abstract

Ceramide has been suggested to participate in the neuronal cell death that leads to Alzheimer's disease (AD), but its role is not yet well-understood. We compared the levels of six ceramide subspecies, which differ in the length of their fatty acid moieties, in brains from patients who suffered from AD, other neuropathological disorders, or both. We found elevated levels of Cer16, Cer18, Cer20, and Cer24 in brains from patients with any of the tested neural defects. Moreover, ceramide levels were highest in patients with more than one neuropathologic abnormality. Interestingly, the range of values was higher among brains with neural defects than in controls, suggesting that the regulation of ceramide synthesis is normally under tight control, and that this tight control may be lost during neurodegeneration. These changes, however, did not alter the ratio between the tested ceramide species. To explore the mechanisms underlying this dysregulation, we evaluated the expression of four genes connected to ceramide metabolism: ASMase, NSMase 2, GALC, and UGCG. The patterns of gene expression were complex, but overall, ASMase, NSMase 2, and GALC were upregulated in specimens from patients with neuropathologic abnormalities in comparison with age-matched controls. Such findings suggest these genes as attractive candidates both for diagnostic purposes and for intervening in neurodegenerative processes.

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Crossref · 10.3233/jad-2011-111202

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  • Glucosylceramide synthesis is downregulated in AD brains.

    “a process downregulated in AD brains34.”

    From APOE4 to APOE2 allelic switching in mice improves Alzheimer’s disease-related metabolic signatures, neuropathology and cognition (2025) · cites this paper as [34]

    The Discussion reports downregulated expression of UGCG, the enzyme that synthesizes glucosylceramide from ceramide, and cites lower UGCG activity in AD frontal cortex. But the Results report variable UGCG expression across the paper’s AD samples, including four with higher expression; the paper does not directly establish that glucosylceramide synthesis is generally downregulated in AD brains. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Increased levels of Cer16, Cer18, Cer20, and Cer24 are found in the brains of patients with Alzheimer's disease.

    “Specifically, increased levels of Cer16, Cer18, Cer20, and Cer24 are found in the brains from patients with AD. 26”
  • Ceramide is increased in human brains as a function of age and in Alzheimer's disease, suggesting that a common mechanism could drive age-related early endosome defects in neurons and the RPE.

    “Recent studies show that ceramide is increased in human brains as a function of age (Park et al., 2018) and in Alzheimer’s disease (Filippov et al., 2012), suggesting that a common mechanism could drive age-related early endosome defects in neurons and the RPE.”

    From The cell biology of the retinal pigment epithelium (2020) · cites this paper as Filippov et al., 2012

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Authors
Filippov, V., Song, M. A., Zhang, K., Vinters, H. V., Tung, S., Kirsch, W. M., Yang, J., & Duerksen-Hughes, P. J.
Affiliations
  • Loma Linda University (US)
  • University of California, Los Angeles (US)
  • Hangzhou Normal University (CN)
Corresponding author
Duerksen-Hughes, Penelope J.
Venue
Journal of Alzheimer s Disease
Published
2012-03-30
Volume
29
Issue
3
Pages
537-547
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W2145962946
Cited by
264
References
23
Citations by year
2026: 12 · 2025: 28 · 2024: 28 · 2023: 29 · 2022: 27 · 2021: 22 · 2020: 26 · 2019: 11 · 2018: 17 · 2017: 21 · 2016: 14 · 2015: 8 · 2014: 10 · 2013: 10 · 2012: 1
FWCI
3.73
Type
journal article
Language
en
Open access
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Aging (P50AG016570, P50-AG 16570)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sphingolipid Metabolism and Signaling
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
ceramide, Alzheimer's disease
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Brain, Ceramides, Chromatography, High Pressure Liquid, Female, Galactosylceramidase, Gene Expression Regulation, Humans, Male, RNA, Messenger, Sphingomyelin Phosphodiesterase, Case-Control Studies, Neurodegenerative Diseases, Tandem Mass Spectrometry

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