OBJECTIVE: The aim of this study was to investigate the prognostic significance of tumor-associated neutrophil (TAN) density in cervical cancer patients that were treated with definitive radiotherapy. METHODS: The baseline characteristics and outcome data of FIGO stages IB-IVA cervical cancer patients who were treated with definitive radiotherapy between January 1996 and December 2011 were collected. Using biopsy samples obtained at the time of the initial diagnosis, the expression levels of CD66b in the patients' cervical tumors were evaluated by immunohistochemistry. Univariate and multivariate analyses were performed to evaluate the relationships between intratumoral TAN density and various clinicopathological features as well as progression-free survival (PFS) in these patients. RESULTS: The CD66b-positive cells (TAN) were observed in 209 (83.6%) of 250 cervical cancer specimens. The TAN density was significantly associated with shorter PFS. Multivariate analysis identified an increased number of TAN (hazard ratio [HR]: 4.95; 95% confidence interval [CI]: 2.51-10.7; p<0.0001), FIGO stage IVB disease (HR: 2.64; 95% CI: 1.38-5.01; p=0.01), non-squamous cell carcinoma (SCC) histology (HR: 2.50; 95% CI: 1.23-4.64; p=0.01), larger tumors (HR: 1.58; 95% CI: 1.03-2.40; p=0.04), and pelvic lymph node metastasis (HR: 2.24; 95% CI: 1.48-3.38; p=0.0001) as independent prognostic factors for short PFS. CONCLUSION: Intratumoral TAN density is an independent prognostic factor for short PFS in cervical cancer patients treated with definitive radiotherapy.
OBJECTIVE: The aim of this study was to investigate the prognostic significance of tumor-associated neutrophil (TAN) density in cervical cancerpatients that were treated with definitive radiotherapy. METHODS: The baseline characteristics and outcome data of FIGO stages IB-IVA cervical cancerpatients who were treated with definitive radiotherapy between January 1996 and December 2011 were collected. Using biopsy samples obtained at the time of the initial diagnosis, the expression levels of CD66b in the patients' cervical tumors were evaluated by immunohistochemistry. Univariate and multivariate analyses were performed to evaluate the relationships between intratumoral TAN density and various clinicopathological features as well as progression-free survival (PFS) in these patients. RESULTS: The CD66b-positive cells (TAN) were observed in 209 (83.6%) of 250 cervical cancer specimens. The TAN density was significantly associated with shorter PFS. Multivariate analysis identified an increased number of TAN (hazard ratio [HR]: 4.95; 95% confidence interval [CI]: 2.51-10.7; p<0.0001), FIGO stage IVB disease (HR: 2.64; 95% CI: 1.38-5.01; p=0.01), non-squamous cell carcinoma (SCC) histology (HR: 2.50; 95% CI: 1.23-4.64; p=0.01), larger tumors (HR: 1.58; 95% CI: 1.03-2.40; p=0.04), and pelvic lymph node metastasis (HR: 2.24; 95% CI: 1.48-3.38; p=0.0001) as independent prognostic factors for short PFS. CONCLUSION: Intratumoral TAN density is an independent prognostic factor for short PFS in cervical cancerpatients treated with definitive radiotherapy.
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