RT Journal A1 Friedrich MJ T1 CAncer drug target? JF JAMA JO JAMA YR 2009 FD February 4 VO 301 IS 5 SP 477 OP 477 DO 10.1001/jama.2009.41 UL http://dx.doi.org/10.1001/jama.2009.41 AB In studies in zebrafish embryos, the researchers identified a DNA demethylation process that involves the coupling of these 2 enzymes and a nonenzymatic factor. Defects in DNA methylation, a cellular process that shuts off genes that either aren't needed or are malfunctioning, can lead to the development of cancer and other diseases.