SLC19A1 and neoplasm: SLC19A1 methylation correlated with LINE1 methylation in 26 evaluable pre- and post-decitabine tumor samples (r = 0.45, P = 0.02), and there was a trend towards change in SLC19A1 methylation varying with change in tumor LINE1 methylation in patients (n = 11) for whom both pre- and post-decitabine tumor samples were evaluable for both genes (n = 11, r = 0.47, P = 0.1457).