Abstract
Background
Serum-soluble interleukin-2 receptor (IL-2R) concentrations have been found to be elevated in cancer patients. However, the importance of this finding in patients with non-small-cell lung cancer (NSCLC) has not been previously established.
Methods
Preoperative serum-soluble IL-2R concentrations were determined in 65 consecutive patients with operable NSCLC. The correlation of preoperative serum-soluble IL-2R concentrations with various clinicopathological features of this cancer was evaluated to clarify the clinical significance of this parameter.
Results
Although serum-soluble IL-2R concentrations were not significantly higher in operable NSCLC patients than in normal controls (P=.1180), serum-soluble IL-2R concentrations were significantly higher in patients with stage IIIB or IV disease than in normal controls (P=.0001). The presence of intrapulmonary metastasis was the only clinicopathological feature that was significantly correlated to serum-soluble IL-2R concentration (P=.0004). The sensitivity of serum-soluble IL-2R concentration in identifying the presence of intrapulmonary metastasis was 87.5%; specificity was 75%.
Conclusions
Elevated preoperative serum-soluble IL-2R concentrations in patients with operable NSCLC reflect the occurrence of intrapulmonary metastasis. Preoperative examination of serum-soluble IL-2R concentrations may be valuable in the detection of the intrapulmonary metastasis preoperatively.
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Kawashima, O., Kamiyoshihara, M., Sakata, S. et al. The clinicopathological significance of preoperative serum-soluble interleukin-2 receptor concentrations in operable non-small-cell lung cancer patients. Annals of Surgical Oncology 7, 239–245 (2000). https://doi.org/10.1007/BF02523660
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DOI: https://doi.org/10.1007/BF02523660