Andrey S. Shaw is in the Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA. ashaw@wustl.edu
The 'lipid raft' hypothesis has been a contentious topic over the past 5 years, with much of the immunology community divided into 'believers' and 'nonbelievers'. The disagreement is due mainly to the inability to observe these membrane domains directly and to the widespread use of experimental approaches of dubious utility. As a lipid raft 'dilettante' who has dabbled in the area over the years, I view the lipid raft model with some skepticism and disinterest because of that confusion. Although progress in the field has helped clarify some of the issues, more work is still needed to formally confirm the lipid raft hypothesis and to reestablish the scientific credibility of this area.
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