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LCAT synthesized by primary astrocytes esterifies cholesterol on glia-derived lipoproteins
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Maturation of ApoE secreted from astrocytes from discoidal to spherical particles depends on cholesterol esterification by lecithin-cholesterol acyltransferase (LCAT), which is also secreted by astrocytes.
“Maturation of ApoE secreted from astrocytes from discoidal to spherical particles depends on cholesterol esterification by lecithin–cholesterol acyltransferase (LCAT), which is also secreted by astrocytes (Fig. 1E) [71].”
From ApoE lipoproteins in the central nervous system under homeostasis and role in Alzheimer’s disease and related disorders (2026) · cites this paper as [71]
The Abstract says glial cells secrete apoE-containing lipoproteins initially as discs, astrocytes produce LCAT, and that LCAT esterifies cholesterol on those particles. The discussion of particle size (Fig. 5A) shows LCAT-dependent changes consistent with maturation, and the paper describes mature CSF particles as spherical. It does not directly establish that LCAT-dependent esterification causes the specific discoidal-to-spherical shape change asserted in the claim. (LLM, conf=0.84)
Experimental — accuracy not yet measuredLCAT is produced by astrocytes.
“previous reports reporting that LCAT is produced by astrocytes (93).”
From Lipidome and proteome of astrocyte and microglia ApoE lipoprotein reveal differences based on cell type and ApoE isoform (2026) · cites this paper as [93]
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Astrocytes synthesize apolipoprotein E and metabolize apolipoprotein E-containing lipoproteins
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Nascent astrocyte particles differ from lipoproteins in CSF
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Metadata
- Authors
- Hirsch-Reinshagen, V., Donkin, J., Stukas, S., Chan, J., Wilkinson, A., Fan, J., Parks, J. S., Kuivenhoven, J. A., Lu¨tjohann, D., Pritchard, H., & Wellington, C. L.
- Venue
- Journal of Lipid Research
- Publisher
- Elsevier BV
- Published
- 2009-05
- Volume
- 50
- Issue
- 5
- Pages
- 885-893
- ISSN
- 0022-2275
- Cited by
- 65
- References
- 4
- Language
- en
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