BACKGROUND: The current study aimed to evaluate the significance of the cell-cycle-control proteins cyclin D1 and p16 as prognostic markers in head and neck squamous cell carcinoma (HNSCC) patients treated with docetaxel and radiotherapy. METHODS: Cyclin D1 and/or p16 protein expression was retrospectively evaluated by immunohistochemistry in 53 patients with stage T1-3N0-2M0 (except T1N0 glottis) HNSCC who were treated with 10 mg/m(2)/week docetaxel 4 to 6 times and received concurrent chemoradiotherapy. RESULTS: Kaplan-Meier univariate analysis revealed that patients with cyclin D1-positive tumors or p16-negative tumors had a worse prognosis compared with those with cyclin D1-negative tumors or p16-positive tumors (p = .0004 and p = .025, respectively). The prognostic significance of cyclin D1 expression, not p16 expression, was confirmed using a proportional hazard regression model. CONCLUSIONS: An assessment of cyclin D1 and p16 levels might be of clinical use in defining subgroups of patients with poor prognosis.
BACKGROUND: The current study aimed to evaluate the significance of the cell-cycle-control proteins cyclin D1 and p16 as prognostic markers in head and neck squamous cell carcinoma (HNSCC) patients treated with docetaxel and radiotherapy. METHODS:Cyclin D1 and/or p16 protein expression was retrospectively evaluated by immunohistochemistry in 53 patients with stage T1-3N0-2M0 (except T1N0 glottis) HNSCC who were treated with 10 mg/m(2)/week docetaxel 4 to 6 times and received concurrent chemoradiotherapy. RESULTS: Kaplan-Meier univariate analysis revealed that patients with cyclin D1-positive tumors or p16-negative tumors had a worse prognosis compared with those with cyclin D1-negative tumors or p16-positive tumors (p = .0004 and p = .025, respectively). The prognostic significance of cyclin D1 expression, not p16 expression, was confirmed using a proportional hazard regression model. CONCLUSIONS: An assessment of cyclin D1 and p16 levels might be of clinical use in defining subgroups of patients with poor prognosis.
Authors: Katie R Hagen; Xiangbin Zeng; Mi-Young Lee; Shannon Tucker Kahn; Mary Kathryn Harrison Pitner; Sandra S Zaky; Yuan Liu; Ruth M O'Regan; Xingming Deng; Harold I Saavedra Journal: Cell Div Date: 2013-07-25 Impact factor: 5.130
Authors: J H Gibcus; M F Mastik; L Menkema; G H de Bock; Ph M Kluin; Ed Schuuring; J E van der Wal Journal: Br J Cancer Date: 2008-02-12 Impact factor: 7.640