[The clinical usefulness of urinary determinations of cytokeratin 19 fragment (CYFRA 21-1) in urothelial tumor].
The urinary CYFRA 21-1 value corrected for urinary creatinine (ng/ml/creatinine), was studied in the urine of patients with urothelial tumors. To examine its clinical significance we studied urinary CYFRA 21-1 excretion (ng/ml/creatinine), in a total of 22 urine samples from patients with bladder cancer, 7 from patients with renal pelvic and ureteral tumor, 6 from patients with urinary infection 6 from patients with urinary diversion called ileal conduit, and 8 from healthy adult men. The excretion of CYFRA 21-1 in urine was determined by two specific monoclonal antibodies (Ks 19.1 and BW 19.21). The mean value of urinary CYFRA 21-1 in healthy adult men was 1.96 +/- 1.33 (mean +/- SD) ng/ml/creatinine. Urinary CYFRA 21-1 showed a higher value in the urine of urinary infection and urinary diversion. As to bladder cancer, urinary CYFRA 21-1 showed a higher value in a larger volume of tumor than in a smaller volume of tumor in transitional cell carcinoma regardless of the grade and stage. These findings suggest that urinary CYFRA 21-1 may be a non-specific marker in urothelial tumors.
Takeuchi
S
S
Department of Urology, Saitama Medical Center of Saitama Medical School.
Saitoh
H
H
Yoshida
K
K
Satake
I
I
Tari
K
K
D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000652:urine*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis; D003556:Cystitis / Q000175:diagnosis; D005260:Female; D006801:Humans; D007633:Keratins / Q000652:urine*; D008297:Male; D008875:Middle Aged; D010446:Peptide Fragments / Q000652:urine*; D014571:Urologic Neoplasms / Q000175:diagnosis*
D014408:Biomarkers, Tumor; D010446:Peptide Fragments; D007633:Keratins