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Prognostic value of pre-treatment circulating monocyte count in patients with cervical cancer: comparison with SCC-Ag
Yoo-Young Lee1, Chel Hun Choi, Chang Ohk Sung
1Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Objective:
Higher level of circulating monocyte has been reported to be related with higher cancer incidence and mortality. We investigated the role of pre-treatment circulating monocyte count for cancer specific survival in cervical squamous cell carcinoma patients comparing with pre-treatment squamous cell carcinoma-related antigen (SCC-Ag) level.
Methods:
We retrospectively enrolled patients with squamous cell carcinoma of the cervix (FIGO stage IB to IVA) who had complete blood cell counts with differential cell count and serum SCC-Ag level within 2 weeks before starting initial treatment and were treated at Samsung Medical Center, Seoul, Korea, from 1996 to 2007.
Results:
The 788 patients in our study group had a median follow-up of 53.4 months and a five-year survival rate of 87.8%. The median value for pre-treatment circulating monocyte count was 349/μl (21-1463), and the median concentration of SCC-Ag was 1.6 ng/ml (0.1-362.0). In multivariable analysis, the pre-treatment circulating monocyte count was an independent prognostic factor for progression-free survival and overall survival in locally advanced disease (P=0.007 and P=0.038) but not in case of SCC-Ag for overall survival. The combined index of monocyte count and SCC-Ag level could enhance the prognostic value of SCC-Ag alone in patients with locally advanced cervical squamous cell carcinoma.
Conclusions:
A higher pre-treatment circulating monocyte count is independently associated with poor prognosis in patients with locally advanced cervical squamous cell carcinoma. The pre-treatment circulating monocyte count may be considered as an adjunctive biomarker with SCC-Ag.
