An oligonucleotide, primer or probe comprises the nucleotide sequence of any of SEQ ID NO. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 61, 62 or 63. The oligonucleotide, primer or probe is useful for the detection of the methylation status of a gene. The oligonucleotides find application in the diagnosis and treatment of cancer.
