The DOI matches its Crossref record; 113 of the 113 references it cites were found in a registry or an index.
Cholesterol 24-Hydroxylase: An Enzyme of Cholesterol Turnover in the Brain
Open accessAbstract
Cholesterol 24-hydroxylase is a highly conserved cytochrome P450 that is responsible for the majority of cholesterol turnover in the vertebrate central nervous system. The enzyme is expressed in neurons, including hippocampal and cortical neurons that are important for learning and memory formation. Disruption of the cholesterol 24-hydroxylase gene in the mouse reduces both cholesterol turnover and synthesis in the brain but does not alter steady-state levels of cholesterol in the tissue. The decline in synthesis reduces the flow of metabolites through the cholesterol biosynthetic pathway, of which one, geranylgeraniol diphosphate, is required for learning in the whole animal and for synaptic plasticity in vitro. This review focuses on how the link between cholesterol metabolism and higher-order brain function was experimentally established.
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“When neurons require cholesterol turnover or accumulate too much cholesterol or its intermediates, the cytochrome P450 oxidase Cyp46a1 hydroxylates cholesterol to produce 24S-hydroxycholesterol (24SOHC), allowing for egress by one-way diffusion into the circulation across the BBB (Fig. 4a)31.”
From A suppressor screen in Mecp2 mutant mice implicates cholesterol metabolism in Rett syndrome (2013) · cites this paper as [31]
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“Cholesterol turnover is also required to produce geranylgeraniol, a product of HMGCR upstream of SQLE that is essential for learning and synaptic plasticity31, and is important for the interaction between neurons and astrocytes at the synapse28.”
From A suppressor screen in Mecp2 mutant mice implicates cholesterol metabolism in Rett syndrome (2013) · cites this paper as [31]
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“Instead, astrocytes make cholesterol and transport it to neurons with apolipoprotein E (apoE) (25–27).”
From Regulation of beta-amyloid production in neurons by astrocyte-derived cholesterol (2021) · cites this paper as [26]
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“This catabolic pathway, which is facilitated by cholesterol 24-hydroxylase (CYP46A1), is the major route for eliminating cholesterol from the CNS, and is therefore a key player in the maintenance of cholesterol homeostasis in the brain (Lütjohann et al., 1996; Russell et al., 2009).”
From Suppression of brain cholesterol synthesis in male Mecp2-deficient mice is age dependent and not accompanied by a concurrent change in the rate of fatty acid synthesis (2017) · cites this paper as Russell et al., 2009
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Cites
A synaptic model of memory: long-term potentiation in the hippocampus
Bliss, T. V. P., & Collingridge, G. L. (1993) · Nature · doi:10.1038/361031a0 · Cited by 11,566
Bliss, T. V. P., & Gardner-Medwin, A. R. (1973) · The Journal of Physiology · doi:10.1113/jphysiol.1973.sp010274 · Cited by 7,424
The Blood-Brain Barrier in Health and Chronic Neurodegenerative Disorders
Zlokovic, B. V. (2008) · Neuron · doi:10.1016/j.neuron.2008.01.003 · Cited by 3,280
Long-Term Potentiation--A Decade of Progress?
Malenka, R. C., & Nicoll, A. R. A. (1999) · Science · doi:10.1126/science.285.5435.1870 · Cited by 2,729
Calabrese, V. P. (1992) · JAMA · doi:10.1001/jama.1992.03490230111048 · Cited by 2,521
Apolipoprotein E: Far More Than a Lipid Transport Protein
Mahley, R. W., & Rall, S. C. (2000) · Annual Review of Genomics and Human Genetics · doi:10.1146/annurev.genom.1.1.507 · Cited by 1,836
Protein Sensors for Membrane Sterols
Goldstein, J. L., DeBose-Boyd, R. A., & Brown, M. S. (2006) · Cell · doi:10.1016/j.cell.2005.12.022 · Cited by 1,517
Endocannabinoid Signaling in the Brain
Wilson, R. I., & Nicoll, R. A. (2002) · Science · doi:10.1126/science.1063545 · Cited by 1,280
Structure and function of dendritic spines
Nimchinsky, E. A., Sabatini, B. L., & Svoboda, K. (2002) · Annual Review of Physiology · doi:10.1146/annurev.physiol.64.081501.160008 · Cited by 1,208
Dietschy, J. M., & Turley, S. D. (2004) · Journal of Lipid Research · doi:10.1194/jlr.r400004-jlr200 · Cited by 1,095
Research works printed but not linked: 8
- Sokoloff L, 1976, Basic Neurochemistry, 388
- Begley DJ, 2003, Prog. Drug Res., 61, 39
- Turley SD, 1998, Am. J. Physiol., 274, E1099
- Ercoli A, 1953, Gazz. Chim. Ital., 83, 78
- van Lier JE, 1969, Tex. Rep. Biol. Med., 27, 167
- 10.3109/00365519609168296 · DOI
- McDonald JG, 2007, Methods Enzymol., 432, 143
- 10.1113/jphysiol.1973.sp010273 · DOI · Paper page
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Lopez, A. M., Chuang, J.-C., Posey, K. S., & Turley, S. D. (2017) · Brain Research · doi:10.1016/j.brainres.2016.10.021 · Cited by 24
Modulation of Brain Cholesterol Metabolism through CYP46A1 Overexpression for Rett Syndrome
Audouard, E., Khefif, N., Gillet-Legrand, B., Nobilleau, F., Bouazizi, O., Stanga, S., Despres, G., Alves, S., Lamazière, A., Cartier, N., et al. (2024) · Pharmaceutics · doi:10.3390/pharmaceutics16060756 · Cited by 7
Garcia, L. P., Van de Wijer, L., Hanswijk, S. I., Rando, J., Witteveen, J. S., Middelman, A., ter Heine, R., de Mast, Q., Martens, G. J. M., van der Ven, A. J. A. M., et al. (2020) · Biochemical Pharmacology · doi:10.1016/j.bcp.2020.114050 · Cited by 6
Metadata
- Authors
- Russell, D. W., Halford, R. W., Ramirez, D. M. O., Shah, R., & Kotti, T.
- Affiliations
- The University of Texas Southwestern Medical Center (US)
- Venue
- Annual Review of Biochemistry
- Publisher
- Annual Reviews
- Published
- 2009-06-01
- Volume
- 78
- Issue
- 1
- Pages
- 1017-1040
- ISSN
- 0066-4154 (ISSN-L)
- 1545-4509
- PMC
- PMC2837268
- OpenAlex
- W2128990583
- Cited by
- 317
- References
- 113
- Citations by year
- 2026: 11 · 2025: 18 · 2024: 27 · 2023: 16 · 2022: 23 · 2021: 40 · 2020: 26 · 2019: 20 · 2018: 16 · 2017: 12 · 2016: 18 · 2015: 14 · 2014: 13 · 2013: 13 · 2012: 16
- FWCI
- 2.66
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Annual Review of Biochemistry (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- Welch Foundation
- National Institutes of Health
- National Heart, Lung, and Blood Institute (HL-20948, P01HL020948)
- National Institute of General Medical Sciences (GM 69338, U54GM069338)
- National Institute of Diabetes and Digestive and Kidney Diseases (DK 81182, PL1DK081182)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Cholesterol and Lipid Metabolism
- Physical Sciences › Chemistry › Organic Chemistry › Steroid Chemistry and Biochemistry
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
- Keywords
- cholesterol 24-hydroxylase, cholesterol turnover, brain cholesterol metabolism, cytochrome P450, cholesterol biosynthesis, learning and memory, synaptic plasticity, hippocampal neurons, cortical neurons
- MeSH terms
- Cholesterol 24-Hydroxylase, Animals, Brain, Cholesterol, Hippocampus, Humans, Learning, Neurons, Steroid Hydroxylases, Gene Expression Regulation, Enzymologic
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