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Mow-Ming Hsu, MD; Jenq-Yuh Ko, MD; Yen-Liang Chang, MD

Arch Otolaryngol Head Neck Surg. 1991;117(11):1257-1259.

Abstract
• Depressed cell-mediated immunity as a measure of the mitogenic response of mononuclear cells in patients with nasopharyngeal carcinoma is well documented, but the mechanism is still unclear. The enzyme-linked immunosorbent assay was used to measure soluble interleukin 2 receptor and tumor necrosis factor levels in 295 patients with nasopharyngeal carcinoma and 97 age-matched control subjects. Soluble interleukin 2 receptor levels in patients with nasopharyngeal carcinoma were elevated and correlated with clinical staging. Higher soluble interleukin 2 receptor levels were found in patients with bone metastasis but not in patients with intracranial involvement. The levels of tumor necrosis factor in nasopharyngeal carcinoma were higher than in control subjects but did not correlate with clinical staging. These data suggest that soluble interleukin 2 receptor levels might be more useful than soluble tumor necrosis factor levels that indicate tumor bulk. Soluble interleukin 2 receptor serves as a blocking factor that competes with interleukin 2 function, resulting in a decreased mitogenic response in patients with nasopharyngeal carcinoma. The usefulness of the levels of soluble interleukin 2 receptor to monitor the efficacy of treatment in patients with nasopharyngeal carcinoma with bone metastasis requires further study.

(Arch Otolaryngol Head Neck Surg. 1991;117:1257-1259)

Author Affiliations
From the Department of Otolaryngology, College of Medicine, National Taiwan University, Taipei.

Footnotes
Accepted for publication July 31, 1991.

Read before the American Society for Head and Neck Surgery, Waikaloa, Hawaii, May 9, 1991.

Reprint requests to the Department of Otolaryngology, National Taiwan University Hospital, No. 1 Chang-Te St, Taipei, Taiwan (Dr Hsu).

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