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Inosine monophosphate dehydrogenase 2 as a marker of aggressive and advanced prostate cancer
Paweł Wieczorek1, Marta Bałut-Wieczorek1, Milosz Jasinski2
1Department of Urology, University Hospital in Zielona Góra, Poland.
Introduction:
There is a need for a new biochemical marker of aggressive prostate cancer (PCa). Inosine monophosphate dehydrogenase 2 (IMPDH2) is a candidate for such a marker - its activity is increased in certain tumors and neoplastic cell lines, including PCa, and may correlate with cancer aggressiveness.
Material And Methods:
IMPDH2 levels were measured in blood samples from 34 PCa patients. The results were analyzed and correlated with prostate-specific antigen (PSA), digital rectal examination (DRE), Gleason score, risk groups according to d'Amico and metastatic disease. Twenty healthy (non-PCa) patients served as the control group.
Results:
There was no significant difference in IMPDH2 level between the PCa and control group, and no significant correlation between PSA and IMPDH2. IMPDH2 levels were significantly higher in the DRE (+) patients (148.5 ±174.8 vs. 33.4 ±46.4, p <0.05), in patients with metastatic disease (100.1 ±139.0 vs. 25.3 ±25.9, p <0.05) and in the high-risk group according to d'Amico (93.4 ±129.2 vs. 18.8 ±10.4, p <0.05). There was a significant correlation between the Gleason score and IMPDH2.
Conclusions:
These results suggest that IMPDH2 is a promising candidate as a biomarker for those with advanced PCa and those at high risk of progression towards advanced PCa.
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