REPORT FROM THE AMERICAN ACADEMY OF NEUROLOGY (AAN) 63^RD ANNUAL MEETING, HONOLULU, HAWAII, APRIL 9-16, 2011 – Clusterin (apoJ) is a heterodimeric protein that may play a role in amyloid plaque formation by acting as an extracellular chaperone (for a review see Thambisetty M. Biomark 2010; 4: 831-834; free full text at www.futuremedicine.com/doi/abs/10.2217/bmm.10.108).