Tumor Markers - 12
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Gene/chromosome markers:
•
e
There are a couple of markers that are used in diagnosis:
•
Ž
p53 gene:
•
mutated form seen in:
•
h
colorectal cancer
•
Ž
Ph
1
chromosome
•
also called the Philadelphia chromosome
•
mutated form of chromosome is a translocation
from chromosome 22 to chromosome 9 (t9,22)
•
h
85% of CML (chronic myelogenous
leukemia) patients have this
chromosome