Orthogonal lipid sensors identify transbilayer asymmetry of plasma membrane cholesterol
Open accessAbstract
Controlled distribution of lipids across various cell membranes is crucial for cell homeostasis and regulation. We developed an imaging method that allows simultaneous in situ quantification of cholesterol in two leaflets of the plasma membrane (PM) using tunable orthogonal cholesterol sensors. Our imaging revealed marked transbilayer asymmetry of PM cholesterol (TAPMC) in various mammalian cells, with the concentration in the inner leaflet (IPM) being ∼12-fold lower than that in the outer leaflet (OPM). The asymmetry was maintained by active transport of cholesterol from IPM to OPM and its chemical retention at OPM. Furthermore, the increase in the IPM cholesterol level was triggered in a stimulus-specific manner, allowing cholesterol to serve as a signaling lipid. We found excellent correlation between the IPM cholesterol level and cellular Wnt signaling activity, suggesting that TAPMC and stimulus-induced PM cholesterol redistribution are crucial for tight regulation of cellular processes under physiological conditions.
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Certain PZD-domain containing proteins such as Dvl2 can be directly activated by cholesterol within the inner leaflet of the plasma membrane.
“Recent reports suggest that certain PZD-domain containing proteins such as Dvl2 can be directly activated by cholesterol within the inner leaflet of the plasma membrane (43, 44, 82–84).”
From Cholesterol efflux protein, ABCA1, supports anticancer functions of myeloid immune cells (2026) · cites this paper as [83]
The Results section ('Stimulus-dependent redistribution of PM cholesterol'; page unavailable) reports that an increase in inner-leaflet cholesterol correlates with Dvl2 recruitment to the plasma membrane, and cites an earlier report of cholesterol-dependent Dvl activation. It does not show that inner-leaflet cholesterol directly activates Dvl2 or establish the proposed PDZ-domain mechanism. (LLM, conf=0.83)
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Self-citationCholesterol efflux protein, ABCA1, supports anticancer functions of myeloid immune cells
Bendre, S. V., Wang, Y., Hajyousif, B., K C, R., Bhogale, S. G., Pradeep, D., Krawczynska, N., Schane, C. P., Weisser, E., Singh, A., et al. (2026) · Science Advances · doi:10.1126/sciadv.adx5490 · Cited by 8 · see citing works
Self-citation
- Authors
- Liu, S.-L., Sheng, R., Jung, J. H., Wang, L., Stec, E., O'Connor, M. J., Song, S., Bikkavilli, R. K., Winn, R. A., Lee, D., Baek, K., Ueda, K., Levitan, I., Kim, K.-P., & Cho, W.
- Affiliations
- University of Illinois Chicago (US)
- Kyung Hee University (KR)
- Kyoto University (JP)
- Corresponding author
- Cho, Wonhwa
- ORCID
- Venue
- Nature Chemical Biology
- Published
- 2016-12-26
- Volume
- 13
- Issue
- 3
- Pages
- 268-274
- ISSN
- 1552-4450 (ISSN-L)
- 1552-4469
- PMC
- PMC5912897
- OpenAlex
- W2564133151
- Cited by
- 239
- References
- 3
- Citations by year
- 2026: 13 · 2025: 27 · 2024: 18 · 2023: 35 · 2022: 26 · 2021: 27 · 2020: 32 · 2019: 22 · 2018: 28 · 2017: 11
- FWCI
- 10.57
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Chemical Biology (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- Japan Society for the Promotion of Science (25221203)
- National Heart, Lung, and Blood Institute (R01HL073965, R01HL083298)
- National Cancer Institute (U54CA202995, U54CA203000, U54CA202997)
- National Institute of General Medical Sciences (R01GM068849, R01GM110128, R35GM122530)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
- Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
- Keywords
- plasma membrane cholesterol, cholesterol transport, Wnt signaling, signaling lipids, membrane lipid distribution
- MeSH terms
- Cell Line, Cell Membrane, Cholesterol, Humans, Lipids, HEK293 Cells
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