Nuclear DNA profiles in primary melanomas and their metastases.

Abstract:

:DNA-aneuploid primary melanomas are said to show a greater propensity to metastasize than those without an aneuploid profile. A higher aneuploid rate has also been reported in metastatic melanomas than in primary lesions. The ploidy profile was determined of 26 primary melanomas and their first subsequent secondaries on Feulgen-stained sections from routinely processed material using a computerized video image-analysis system. In 18 of 26 cases, both primary and secondary tumor showed similar corresponding DNA patterns. These were aneuploid in 13 of 18 of the cases. A hyperdiploid pattern was present in one case in both the primary and its metastasis, and a diploid pattern was seen in four cases. There were only eight cases in which a disparity between the nuclear ploidy profile in the primary and secondary tumor was evident. Although the results suggest that ploidy studies are not useful for predicting the metastatic potential of a primary melanoma, the maintenance of similar DNA profiles in the metastases in most of these cases was interesting in regard to tumor biology.

journal_name

Cancer

journal_title

Cancer

authors

Rode J,Williams RA,Charlton IG,Dhillon AP,Moss E

doi

10.1002/1097-0142(19910501)67:9<2333::aid-cncr2820

subject

Has Abstract

pub_date

1991-05-01 00:00:00

pages

2333-6

issue

9

eissn

0008-543X

issn

1097-0142

journal_volume

67

pub_type

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