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ENGLISH ABSTRACT
JOURNAL ARTICLE
[Expression of survivin and proliferating cell nuclear antigen in human non-small cell lung cancer].
Zhong Nan da Xue Xue Bao. Yi Xue Ban = Journal of Central South University. Medical Sciences 2005 October
OBJECTIVE: To determine the expressions of survivin and proliferating cell nuclear antigen (PCNA)in non-small cell lung cancer (NSCLC) and to explore its clinical pathological significance.
METHODS: Immunohistochemical SP method was used to detect the expressions of survivin and PCNA in 43 patients with NSCLC and 15 normal epithelial tissues of the lung. PCNA labeling proliferative index was assessed. Forty-three patients with NSCLC were followed up for more than 5 years.
RESULTS: The positive expression of survivin in NSCLC (79.1%) was significantly higher than that in normal epithelial tissues of the lung (P < 0.01). The survivin expression in Stage I + II was lower than in Stage III (P < 0.05). The overall survival time was significantly shorter in patients with high survivin expression than that in patients with absent or low survivin expression. The survivin expression was not related to sex, age, tumor size and site, histological type, grade, and lymphoid node metastasis (P > 0.05). The mean proliferative index of PCNA in NSCLC was much higher than that in normal epithelial tissues of the lung (P < 0.01). A positive correlation was present between the proliferative index and the tumor size, lymph node metastase, and clinical stage (P <0.01), while a negative correlation between the proliferative index and survival time (P <0.01). There was no correlation between proliferative index and age, sex, site, histological type and grade. The proliferative index was larger in patients with moderate or strong positive survivin expression than that in patients with negative or weak survivin expression (P < 0.05).
CONCLUSION: Over expression of survivin and PCNA is closely correlated to the progression and prognosis of patients with NSCLC, which is helpful to evaluate the progression of cancer and to predict the prognosis of NSCLC. The up-regulation of survivin expression and its close relationship with the cell proliferation in NSCLC suggest that survivin may play an important role in the carcinogenesis and development of lung cancer.
METHODS: Immunohistochemical SP method was used to detect the expressions of survivin and PCNA in 43 patients with NSCLC and 15 normal epithelial tissues of the lung. PCNA labeling proliferative index was assessed. Forty-three patients with NSCLC were followed up for more than 5 years.
RESULTS: The positive expression of survivin in NSCLC (79.1%) was significantly higher than that in normal epithelial tissues of the lung (P < 0.01). The survivin expression in Stage I + II was lower than in Stage III (P < 0.05). The overall survival time was significantly shorter in patients with high survivin expression than that in patients with absent or low survivin expression. The survivin expression was not related to sex, age, tumor size and site, histological type, grade, and lymphoid node metastasis (P > 0.05). The mean proliferative index of PCNA in NSCLC was much higher than that in normal epithelial tissues of the lung (P < 0.01). A positive correlation was present between the proliferative index and the tumor size, lymph node metastase, and clinical stage (P <0.01), while a negative correlation between the proliferative index and survival time (P <0.01). There was no correlation between proliferative index and age, sex, site, histological type and grade. The proliferative index was larger in patients with moderate or strong positive survivin expression than that in patients with negative or weak survivin expression (P < 0.05).
CONCLUSION: Over expression of survivin and PCNA is closely correlated to the progression and prognosis of patients with NSCLC, which is helpful to evaluate the progression of cancer and to predict the prognosis of NSCLC. The up-regulation of survivin expression and its close relationship with the cell proliferation in NSCLC suggest that survivin may play an important role in the carcinogenesis and development of lung cancer.
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