HSPA5 and Waldenstrom macroglobulinemia: A prior study analyzed bone marrow samples from 10 patients with Waldenström's macroglobulinemia (WM), 12 with MM and 11 with chronic lymphocytic leukemia (CLL) to show that HSPA5 expression was increased relative to normal PCs obtained from healthy donors in these plasma cell disorders (GSE66910) [28].