Table 2

Association of MGMT promoter hypermethylation and loss of MGMT expression in human primary tumors

TotalHypermethylatedUnmethylated
All types (n = 31)
 Expressing tumors18117
 Tumors with loss of expression13121
By types
Brain tumors (n = 8)
 Expressing tumors55
 Tumors with loss of expression33
Lymphomas (n = 14)
 Expressing tumors77
 Tumors with loss of expression761
Colorectal carcinomas (n = 9)
 Expressing tumors615
 Tumors with loss of expression33