Skip to main content

Table 1 Frequencies of methylation of analyzed genes in PB and breast tumors.

From: Methylation of cancer related genes in tumor and peripheral blood DNA from the same breast cancer patient as two independent events

GENE Chromosomal region targeted by assay * Number of paired samples used/excluded** Methylated in both blood and tumor
Sample no. (%)
Methylated only tumor*** Methylated only PBL
Sample no. (%)
BRCA1 chr17:41, 277, 382-41, 277, 409 75/6 3 (4.3%) 23% 3 (4.3%)
APC chr5:112, 073, 470-112, 073, 516 75/3 3 (4.1%) 83% 2 (2.7%)
RASSF1A chr3:50, 377, 755-50, 378, 089 75/2 0% 97% 0
  1. * UCSC Genome Browser on Human Feb. 2009 (GRCh37/hg19) Assembly
  2. ** Samples excluded due to failure of PCR amplification
  3. *** Out of all tumor samples used