Visfatin is released from various cell types and tissues of higher organisms, including peripheral-blood monocytes, lymphocytes, dendritic cells, macrophages, adipose tissues, in particular visceral adipose tissue and is expressed in various malignant tumors, including colon, stomach, pancreas, liver, prostate, and breast cancers [13,15,17,18,19,20,21,22,23,24]. Here, NAMPT is linked to cancer.