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Intracellular cholesterol mobilization involved in the ABCA1/apolipoprotein-mediated assembly of high density lipoprotein in fibroblasts
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Inhibiting ACAT increases the free cholesterol pool and facilitates lipid secretion to extracellular apoE-containing lipoproteins.
“Thus, inhibiting ACAT increases the FC pool and facilitates lipid secretion to extracellular apoE-containing lipoproteins.”
From Inhibition of ACAT as a Therapeutic Target for Alzheimer's Disease Is Independent of ApoE4 Lipidation (2023) · cites this paper as [62]
The section ‘Effect of ACAT enzyme activity on apoA-I-mediated cholesterol release’ reports that ACAT inhibition increased cholesterol and phospholipid release mediated by apoA-I, not apoE. Table 1 in ‘Measurement of the free cholesterol pool available for ACAT’ does not establish the claimed increase in free cholesterol: the ACAT-deficient cells had less measured free cholesterol than their parental cells. The paper therefore supports increased lipid release under its tested conditions, but not the specified apoE-containing recipients or the asserted increase in the free-cholesterol pool. (LLM, conf=0.86)
Experimental — accuracy not yet measuredThe decrease in endothelial cell disruption and atherosclerotic plaque development was dependent on apoA1 as the plasma cholesterol acceptor.
“This decrease in endothelial cell disruption and atherosclerotic plaque development was dependent on apoA1 as the plasma cholesterol acceptor [57–63].”
From Inhibition of ACAT as a Therapeutic Target for Alzheimer's Disease Is Independent of ApoE4 Lipidation (2023) · cites this paper as [62]
The section on the ACAT-accessible cholesterol pool reports that apoA-I mediates cholesterol release in cells expressing ABCA1. That supports apoA-I’s role in cellular cholesterol removal, but the paper does not report decreased endothelial cell disruption or atherosclerotic plaque development, or show that either outcome depends on apoA-I acting as a plasma cholesterol acceptor. (LLM, conf=0.82)
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Yamauchi, Y., Hayashi, M., Abe-Dohmae, S., & Yokoyama, S. (2003) · Journal of Biological Chemistry · doi:10.1074/jbc.m306258200 · Cited by 134
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Cited by
Sorted by citations
ATP-Binding Cassette Cholesterol Transporters and Cardiovascular Disease
Oram, J. F., & Vaughan, A. M. (2006) · Circulation Research · doi:10.1161/01.res.0000250171.54048.5c · Cited by 411
Shibuya, Y., Chang, C. C. Y., Huang, L.-H., Bryleva, E. Y., & Chang, T.-Y. (2014) · The Journal of Neuroscience · doi:10.1523/jneurosci.2567-14.2014 · Cited by 108
“We had previously shown that treating a cholesterol-rich Chinese hamster ovary cell line 25RA with an ACAT inhibitor F12511 (which inhibits both ACAT1 and ACAT2) for 24 h caused a significant increase in the ABCA1 protein levels (Yamauchi et al., 2004).”
BackgroundGlycosphingolipid Accumulation Inhibits Cholesterol Efflux via the ABCA1/Apolipoprotein A-I Pathway
Glaros, E. N., Kim, W. S., Quinn, C. M., Wong, J., Gelissen, I., Jessup, W., & Garner, B. (2005) · Journal of Biological Chemistry · doi:10.1074/jbc.m413862200 · Cited by 75
Valencia-Olvera, A. C., Balu, D., Faulk, N., Amiridis, A., Wang, Y., Pham, C., Avila-Munoz, E., York, J. M., Thatcher, G. R. J., & LaDu, M. J. (2023) · Neurotherapeutics · doi:10.1007/s13311-023-01375-3 · Cited by 22
Metadata
- Authors
- Yamauchi, Y., Chang, C. C. Y., Hayashi, M., Abe-Dohmae, S., Reid, P. C., Chang, T.-Y., & Yokoyama, S.
- Venue
- Journal of Lipid Research
- Publisher
- Elsevier BV
- Published
- 2004-10
- Volume
- 45
- Issue
- 10
- Pages
- 1943-1951
- ISSN
- 0022-2275
- Cited by
- 62
- References
- 1
- Language
- en
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