Patent ID: 7090978

Claim:
A diagnostic kit for providing a prognosis for at least one of colorectal, stomach, and pancreatic tumor cells: at least one set of arbitrary primer pairs complementary to a predetermined portion of DNA from said tumor cells, wherein the predetermined portion of DNA comprises one or more mutations, wherein the mutations are at least one of deletions and insertions of one or a few nucleotides in reiterated sequences or microsatellite sequences, wherein the reiterated sequences are characterized as having multiple adjacent occurrences of the same nucleotide, dinucleotide pair, or nucleotide triplet, and wherein the microsatellite sequences are characterized as having 1 to 6 base pair tandem repeats; and reagents to carry out PCR amplification; wherein the at least one of colorectal, stomach, and pancreatic tumor cells have a prognosis of at least one of the following: (i) being less invasive than tumors without said mutations; (ii) having a lower rate of recurrence than tumors without said mutations; and (iii) being less likely to have metastasis than tumors without said mutations.