Plasma membrane organization and function: Moving past lipid rafts

Research output: Contribution to journalReview article

Abstract

"Lipid raft" is the name given to the tiny, dynamic, and ordered domains of cholesterol and sphingolipids that are hypothesized to exist in the plasma membranes of eukaryotic cells. According to the lipid raft hypothesis, these cholesterol- and sphingolipid-enriched domains modulate the protein-protein interactions that are essential for cellular function. Indeed, many studies have shown that cellular levels of cholesterol and sphingolipids influence plasma membrane organization, cell signaling, and other important biological processes. Despite 15 years of research and the application of highly advanced imaging techniques, data that unambiguously demonstrate the existence of lipid rafts in mammalian cells are still lacking. This Perspective summarizes the results that challenge the lipid raft hypothesis and discusses alternative hypothetical models of plasma membrane organization and lipid-mediated cellular function.

Original languageEnglish (US)
Pages (from-to)2765-2768
Number of pages4
JournalMolecular biology of the cell
Volume24
Issue number18
DOIs
StatePublished - Sep 15 2013

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

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