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RT-PCR analysis of Bmp2 and Bmp4 gene expression in odontogenic tumors. Transcript expression was analyzed by RT-PCR in the CCOC, 12 cases of ameloblastomas (A1–A12), and EOFTs of a 9-week-old embryo. Agarose gel analysis showed an expected size but an irregular band intensity for Bmp2 in the ameloblastomas studied. The Bmp2 band remained undetectable in the CCOC (triplicate essay). Bmp4 transcripts seem to be regularly expressed at the expected size in all the tissue samples studied.
