“…β2-microglobulin (β2-M), a 11kDa non-glycosylated protein, exists in all nucleated cells (Cunningham et al, 1973;Güssow et al, 1987) and is involved in the regulation of the host immune response (Townsend et al, 1986;Pedersen et al, 1994), as well as a growth factor and signaling molecule in cancer cells. β2-M expression increases during progression of human prostate cancer (Gross et al, 2007), breast cancer (Teasdale et al, 1977), renal cancer (Hemmingsen and Skaarup, 1977), lung cancer (Shuster et al, 1976), colon cancer (Ward et al, 2008), and a number of liquid tumors (Yang et al, 2006).…”