alexa Rafts are required for acetylcholine receptor clustering.


Journal of Addiction Research & Therapy

Author(s): StetzkowskiMarden F, Recouvreur M, Camus G, Cartaud A, Marchand S,

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Abstract Cholesterol-sphingolipid microdomains, or lipid rafts, are major regulators of molecular interactions in membrane organization. Because lipid rafts can move laterally and cluster into larger patches, they have been proposed to play a role in the redistribution of specific molecules to specialized cellular structures. Rafts have been shown to favor formation and maintenance of synaptic receptor clusters in neurons of the central nervous system. However, little is known about their role in formation of the neuromuscular junction (NMJ). To determine whether lipid rafts are involved in acetylcholine receptor (AChR) cluster formation and stabilization in myogenic cells, two standard tools were employed: (1) Perturbation of lipid rafts by drugs that deplete membrane cholesterol was carried out to verify that cholesterol is required for AChR clustering in agrin-treated C2C12 myotubes; and (2) detergent resistance of lipid-ordered domains was also used to demonstrate that AChRs, as well as key components of the postsynaptic membrane of the NMJ, are associated with rafts. This article was published in J Mol Neurosci and referenced in Journal of Addiction Research & Therapy

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