Abstract
To identify decoy cells, cytological examination was performed in urine cytospin slides. Decoy cells are related to Polyomaviruses (JC virus [JCV] and BK virus [BKV]), which are recognized worldwide due to potential infection and morbidity in kidney transplant recipients. Cytologically, it is difficult to evaluate the cytopathic effect of JCV and BKV in urine of patients with urothelial neoplasia. For this reason, there is a need for molecular approaches. To evaluate the incidence of BKV and JCV DNA in archival slides of urine cytospin material with benign and malignant characteristics. A total of 176 urine specimens were used for cytological examination of neoplastic or decoy cells. The samples were analyzed for the presence of JCV and BKV, by polymerase chain reaction (PCR) in DNA Isolated from archival slides of urine cytospin material. A typical samples (n = 48) were compared with the remaining 128 samples without atypia/neoplasia for the presence of JCV or BKV DNA. A statistically nonsignificant result was observed correlating the presence of JCV or BKV. The results show that DNA Isolated from archival slides of urine cytospin material can be used for detection of BKV and JCV.
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