We first generated six thyroid carcinoma cell clones in which the expression of CBX7 has been restored, then, by using the powerful oligonucleotide microarray hybridization technique, we analysed the gene expression profile of the FRO cell line in which the expression of CBX7 was restored, compared to the same cell line not expressing CBX7. This evidence concerns the gene CBX7 and thyroid gland carcinoma.