Most previous studies on adiponectin and adiponectin receptors have focused on obesity-related diseases such as diabetes and metabolic syndrome; however, recent studies have implicated that AdipoR1 is also closely related to tumorigenesis such as breast, colorectal, and gastric cancer development (Pfeiler et al. 2010; Tsukada et al. 2011; Byeon et al. 2010). Here, ADIPOR1 is linked to gastric cancer.