Abstract:
:A critical area of chromosomal loss at region p16(9p21-22) and p53(17p13) has been implicated in the genesis of malignant melanoma. It is still unclear whether the genetic alterations can be detected in dysplastic nevus, a premalignant lesion of malignant melanoma. We have searched the frequency of p16 and p53 deletion in nine dysplastic nevi and 13 benign intradermal nevi with five microsatellite markers. Hemizygous deletion was detected in seven of nine (78%) dysplastic nevi at one or more loci for p16 and three of seven (43%) for p53, respectively. No loss of heterozygosity (LOH) was detected in any of the benign intradermal nevi. All three dysplastic nevi with LOH for p53 also showed LOH at p16. However, not all dysplastic nevi showing p16 deletion showed p53 gene deletion. Therefore, these data suggest that deletion of p16 may play an important role in the development of dysplastic nevus as an early event and that the changes may represent an early event in the development of malignant melanoma.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Park WS,Vortmeyer AO,Pack S,Duray PH,Böni R,Guerami AA,Emmert-Buck MR,Liotta LA,Zhuang Zdoi
10.1016/s0046-8177(98)90221-0subject
Has Abstractpub_date
1998-02-01 00:00:00pages
127-30issue
2eissn
0046-8177issn
1532-8392pii
S0046-8177(98)90221-0journal_volume
29pub_type
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