Circulating interleukin-6 level is a prognostic marker for survival in advanced nonsmall cell lung cancer patients treated with chemotherapy

Chin Hao Chang, Chin Fu Hsiao, Yu-Min Yeh, Gee Chen Chang, Ying Huang Tsai, Yuh Min Chen, Ming Shyan Huang, Hui Ling Chen, Yao Jen Li, Pan Chyr Yang, Chien Jen Chen, Chao A. Hsiung, Wu-Chou Su

研究成果: Article

93 引文 斯高帕斯(Scopus)

摘要

Lung cancer is the leading cause of cancer death worldwide as well as in Taiwan. Interleukin-6 (IL-6) is a multifunctional cytokine and has been implicated in tumor progression. This study recruited 245 patients with advanced (Stage 3B/4) nonsmall cell lung cancer (NSCLC) that had received chemotherapy, to evaluate associations between IL-6 and lung cancer-specific survival. Among these subjects, 112 gave blood samples before and 133 after the start of chemotherapy. Plasma IL-6 was measured using an enzyme linked-immunosorbent assay. The 33rd and 66th percentiles of IL-6 concentrations were 2.01 and 25.16 for the 245 patients and were defined as the cutoff points for dividing the patients into low, intermediate and high groups. Kaplan-Meier and Cox proportional-hazard models were used to evaluate the relationship between the IL-6 level and survival time. Results after adjusting for age, sex, smoking history, histologic type and stage of lung cancer revealed a significant relationship. For all patients, the hazard ratio with high IL-6 levels for lung cancer-specific survival was 2.10 [95% confidence interval (CI) = 1.49-2.96] compared with low IL-6 levels. The hazard ratio for patients who were recruited before and after the start of chemotherapy was1.25 (95% CI = 0.73-2.13) and 3.66 (95% CI = 2.18-6.15), respectively. Patients with high circulating IL-6 also responded poorly to chemotherapy. Therefore, a high level of circulating IL-6 was associated with an inferior response and survival outcome in NSCLC patients treated with chemotherapy. What's new? IL-6 has been implicated in the development of drug resistance in tumors. In this study, the authors found that plasma levels of IL-6 from samples collected after chemotherapy provide a more accurate prediction of survival for patients with advanced non-small-cell lung cancer than samples collected before chemotherapy. In addition, patients with high plasma levels of IL-6 responded poorly to chemotherapy. Therefore, a high circulating IL-6 level is an independent prognostic marker for lung cancer-specific survival, especially for patients who have received chemotherapy.

原文English
頁(從 - 到)1977-1985
頁數9
期刊International Journal of Cancer
132
發行號9
DOIs
出版狀態Published - 2013 五月 1

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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    Chang, C. H., Hsiao, C. F., Yeh, Y-M., Chang, G. C., Tsai, Y. H., Chen, Y. M., Huang, M. S., Chen, H. L., Li, Y. J., Yang, P. C., Chen, C. J., Hsiung, C. A., & Su, W-C. (2013). Circulating interleukin-6 level is a prognostic marker for survival in advanced nonsmall cell lung cancer patients treated with chemotherapy. International Journal of Cancer, 132(9), 1977-1985. https://doi.org/10.1002/ijc.27892