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Images of oral carcinoma cell lines with positive (UMSCC-74A) (A) and negative (UPCI:SCC 182) (C) levels of BMP-2 mRNA expression were taken at 19h after stimulation (Magnification 15X). The respective dynamic profiles of invasive activity represented by log10 of fluorescence levels (means of three independent measurements) are shown on panels B and D. Error bars correspond to standard deviations for each time point and treatment.
