PMID- 16619518 OWN - NLM STAT- MEDLINE DCOM- 20060511 LR - 20061115 IS - 0250-7005 (Print) IS - 0250-7005 (Linking) VI - 26 IP - 2A DP - 2006 Mar-Apr TI - Is aneusomy of chromosome 9 alone a valid biomarker for urinary bladder cancer screening? PG - 1161-5 AB - BACKGROUND: Detection of genetically-changed tumor cells in the urine is one of the new approaches for the screening of bladder carcinomas. In a previous study, numerical aberrations of chromosome 9 were found in 85.18% of bladder tumors studied by the fluorescence in situ hybridization (FISH) technique. The purpose of the present study was to investigate whether chromosome 9 aneusomy alone is a valid, cost effective, biomarker for bladder cancer screening. MATERIALS AND METHODS: Twenty-seven voided urine specimens obtained from 22 bladder cancer patients, either at initial diagnosis or at the follow-up, were analyzed by the FISH technique with the centromeric probe specific for chromosome 9. RESULTS: In all except 2 out of the 13 specimens with a histological confirmation of cancer, FISH analysis showed aneusomy 9 (sensitivity 84.61%). Among 6 cases with a negative cystoscopy but a positive FISH analysis, 3 recurred within the following 2 months, while 2 no-recurrent patients continued to show positive FISH findings after 6 months. One patient was considered to be false-positive. Four cases with a negative cystoscopy showed disomy 9 and 2 of them recurred. CONCLUSION: Aneusomy 9 has a high sensitivity (84.61%) for the detection of bladder cancer. Patients with a negative cystoscopy but with aneusomy 9 should be kept under close clinical surveillance for potential disease recurrence. However, negative FISH results might not be a negative predictor for disease recurrence. Our results encourage further studies with a large number of patients and a long-term follow-up with concurrent FISH analysis. FAU - Panani, Anna D AU - Panani AD AD - Critical Care Department, Medical School of Athens University, Research Unit, "Evangelismos" Hospital, Athens 10676, Greece. apanani@med.uoa.gr FAU - Kozirakis, Diomidis AU - Kozirakis D FAU - Anastasiou, John AU - Anastasiou J FAU - Babanaraki, Athanasia AU - Babanaraki A FAU - Malovrouvas, Dimitrios AU - Malovrouvas D FAU - Roussos, Charis AU - Roussos C LA - eng PT - Journal Article PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 SB - IM MH - Aged MH - Aged, 80 and over MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 9/*genetics MH - Cost-Benefit Analysis MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence/economics/methods MH - Male MH - Middle Aged MH - Sensitivity and Specificity MH - Urinary Bladder Neoplasms/diagnosis/*genetics/pathology/urine EDAT- 2006/04/20 09:00 MHDA- 2006/05/12 09:00 CRDT- 2006/04/20 09:00 PHST- 2006/04/20 09:00 [pubmed] PHST- 2006/05/12 09:00 [medline] PHST- 2006/04/20 09:00 [entrez] PST - ppublish SO - Anticancer Res. 2006 Mar-Apr;26(2A):1161-5.