MMP20 and thyroid tumor: Fisher et al,21 over a decade ago, published the expression profile of other members belonging to the SIBLING family: BSP; OPN, and DMP1 and their cognate MMP partners: MMP2; MMP3; MMP9, respectively, in the breast, uterus, colon, stomach, ovary, lung, rectum, thyroid, and kidney, using cDNA microarrays.21 Our current reports include data on the expression profiles of MMP20 and DSPP, as cognate partners, in archived pathologic tissues and cell lines of the breast, colon, prostate, cervix and thyroid neoplasms.