Clinical Research Papers:
Serum monocyte fraction of white blood cells is increased in patients with high Gleason score prostate cancer
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Takuji Hayashi1, Kazutoshi Fujita1, Go Tanigawa2, Atsunari Kawashima1, Akira Nagahara1, Takeshi Ujike1, Motohide Uemura1, Tetsuya Takao2, Seiji Yamaguchi2 and Norio Nonomura1
1 Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
2 Department of Urology, Osaka General Medical Center, Osaka, Japan
Kazutoshi Fujita, email:
Keywords: serum, monocyte, Gleason score, prostate cancer, biopsy
Received: September 16, 2016 Accepted: October 28, 2016 Published: November 03, 2016
Systemic inflammation and immune responses are reported to be associated with progressive prostate cancer. In this study, we explored which among the fractions of white blood cell (WBC) and C-reactive protein (CRP) level were associated with high Gleason score prostate cancer. Prostate needle biopsy was performed in 966 men with suspicion of prostate cancer. We assessed age, serum prostate-specific antigen (PSA), prostate volume, WBC count, fractions of WBCs (neutrophils, lymphocytes, monocytes, basophils, and eosinophils), and CRP level before biopsy for associations with biopsy findings. Among all men, 553 (57.2%) were positive for prostate cancer including 421 with high Gleason score cancer (Gleason score ≥7). Age, PSA, PSA density (PSAD), serum monocyte fraction of WBC, monocyte-to-lymphocyte ratio (MLR), and CRP were significantly associated with high Gleason score cancer (p<0.01). Multivariate analysis showed that age, PSA, PSAD, and serum monocyte fraction were significantly associated with high Gleason score prostate cancer (p <0.01). In 571 patients with PSA of <10 ng/ml, age, PSA, PSAD, serum WBC count, neutrophil fraction, monocyte fraction, and MLR were significantly associated with high Gleason score prostate cancer (p<0.05). Multivariate analysis showed that age, PSAD, and serum monocyte fraction were significantly associated with high Gleason score prostate cancer (p<0.01). The monocyte fraction of WBCs was increased in patients with high Gleason score prostate cancer, suggesting an interaction of monocytes with the progression of prostate cancer.
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