Maerker, David A. and Zeschnigk, Michael and Nelles, Jasmin and Lohmann, Dietnnar R. and Worm, Karl and Bosserhoff, Anja K. and Krupar, Rosemarie and Jaegle, Herbert (2014) BAP1 germline mutation in two first grade family members with uveal melanoma. BRITISH JOURNAL OF OPHTHALMOLOGY, 98 (2). pp. 224-227. ISSN 0007-1161, 1468-2079
Full text not available from this repository. (Request a copy)Abstract
Background Uveal melanoma (UM) is the most common primary cancer of the eye in adults. About half of the patients are at risk of developing metastatic disease resulting in a poor clinical prognosis. Metastatic progression is strongly associated with loss of one chromosome 3 in the tumour (monosomy 3). The tumour suppressor gene BAP1 was found to be recurrently mutated in UM with monosomy 3. Familial UM is rare and amounts to about 0.6-6% of all patients with melanoma. However, BAP1 germline mutations have been identified in rare hereditary tumour syndromes, including cases with UM. One may assume that UM may be part of these hereditary conditions with predisposition to malignant cancers. Methods The patients underwent complete ophthalmological workup and enucleation due to UM. Microsatellite analysis was performed to determine the chromosome 3 status of the tumours. Sanger sequencing of all coding exons of the BAP1 gene was performed in blood DNA of the patients. Results Here we report on two family members (mother and son) diagnosed with UM. In both patients, a cosegregating BAP1 germline mutation (c.299 T>C) was found. The mutant BAP1 allele was retained in the tumour of the son showing monosomy 3. The son further developed urothelial carcinoma and liver metastasis, the mother was affected by the UM and cholangiocellular carcinoma. Conculsions We detected a cosegregating BAP1 germline mutation in two family members with UM. This suggests that, consistent with a classic tumour suppressor model, carriers of damaging mutations in BAP1 are predisposed to UM. However, as BAP1 germline mutations have been found to cause other cancer syndromes as well, there must be other factors that decide about the type of tumour emerging from BAP1 inactivation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BRCA1-ASSOCIATED PROTEIN-1; UBIQUITIN HYDROLASE; ASSOCIATION; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Augenheilkunde Medicine > Lehrstuhl für Pathologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Nov 2019 09:39 |
| Last Modified: | 28 Nov 2019 09:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10761 |
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