PMID- 21809997 OWN - NLM STAT- MEDLINE DCOM- 20110927 LR - 20220408 IS - 1543-2165 (Electronic) IS - 0003-9985 (Linking) VI - 135 IP - 8 DP - 2011 Aug TI - Effect of heterogeneous distribution of monosomy 3 on prognosis in uveal melanoma. PG - 1042-7 LID - 10.5858/2010-0477-OAR1 [doi] AB - CONTEXT: Fluorescence in situ hybridization (FISH) analyses on tumor sections and on isolated nuclei showed that even low numbers of cells with monosomy of chromosome 3 adversely affected survival. OBJECTIVE: To determine what percentage of uveal melanoma cells with monosomy of chromosome 3 influences patient mortality. DESIGN: To determine the presence of monosomy 3, karyotyping and FISH on cultured cells and FISH on isolated nuclei were performed on 50 primary uveal melanomas. Clinical and pathologic prognostic factors were assessed and compared with 5-year survival data. Analyses were performed using Cox proportional hazards test, log-rank analysis, sensitivity, specificity, and positive and negative likelihood ratios. RESULTS: Combined karyotyping and FISH on cultured cells showed monosomy 3 in 19 of 50 cases (38%), whereas determination of the monosomy 3 status by FISH on isolated nuclei with a threshold of 5% assigned 31 of 50 cases (62%) to the monosomy-3 category. When monosomy 3 on isolated nuclei with a cutoff value of 5% was used, a significant difference in 5-year survival was present (hazard ratio, 15.5; P = .007), indicating that monosomy 3 in greater than 5% of tumor cells is related to death due to metastases. CONCLUSION: In uveal melanoma, the presence of greater than 5% of cells with monosomy 3, as determined by FISH on isolated nuclei, is associated with the development of metastases within 5 years after enucleation. FAU - Bronkhorst, Inge H G AU - Bronkhorst IH AD - Department of Ophthalmology, Leiden University Medical Center, the Netherlands. FAU - Maat, Willem AU - Maat W FAU - Jordanova, Ekaterina S AU - Jordanova ES FAU - Kroes, Wilma G M AU - Kroes WG FAU - Schalij-Delfos, Nicoline E AU - Schalij-Delfos NE FAU - Luyten, Gregorius P M AU - Luyten GP FAU - Jager, Martine J AU - Jager MJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Arch Pathol Lab Med JT - Archives of pathology & laboratory medicine JID - 7607091 RN - 0 (DNA, Neoplasm) SB - IM MH - Chromosomes, Human, Pair 3/*genetics MH - DNA, Neoplasm/analysis MH - Eye Enucleation MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Male MH - Melanoma/genetics/mortality/*secondary/surgery MH - Middle Aged MH - *Monosomy MH - Neoplasm Staging MH - Netherlands/epidemiology MH - Prognosis MH - Survival Rate MH - Uveal Neoplasms/genetics/mortality/*pathology/surgery EDAT- 2011/08/04 06:00 MHDA- 2011/09/29 06:00 CRDT- 2011/08/04 06:00 PHST- 2011/08/04 06:00 [entrez] PHST- 2011/08/04 06:00 [pubmed] PHST- 2011/09/29 06:00 [medline] AID - 10.1043/2010-0477-OAR1 [pii] AID - 10.5858/2010-0477-OAR1 [doi] PST - ppublish SO - Arch Pathol Lab Med. 2011 Aug;135(8):1042-7. doi: 10.5858/2010-0477-OAR1.