期刊
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
卷 1864, 期 1, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.bbamem.2021.183774
关键词
Cyclodextrin; Phospholipid; Sphingolipid; Plasma membrane; Lipid asymmetry
资金
- NIH [GM 122493]
Efficient cyclodextrin-induced lipid exchange methods have been developed to replace lipids in artificial or living cell membranes, enabling detailed studies on the influence of lipid composition and asymmetry on membrane domains and proteins. This review summarizes the progress on cyclodextrin exchange in cells and discusses considerations and issues impacting lipid exchange experiments and interpretation.
Methods for efficient cyclodextrin-induced lipid exchange have been developed in our lab. These make it possible to almost completely replace the lipids in the outer leaflet of artificial membranes or the plasma membranes of living cells with exogenous lipids. Lipid replacement/substitution allows detailed studies of how lipid composition and asymmetry influence the structure and function of membrane domains and membrane proteins. In this review, we both summarize progress on cyclodextrin exchange in cells, mainly by the use of methyl-alpha cyclodextrin to exchange phospholipids and sphingolipids, and discuss the issues to consider when carrying out lipid exchange experiments upon cells. Issues that impact interpretation of lipid exchange are also discussed. This includes how overly naive interpretation of how lipid exchange-induced changes in domain formation can impact protein function.
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