The relationship between blood IL-12p40 level and melanoma progression.
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Cytokines such as Interleukin (IL)-12p70 ("IL-12") and IL-23 can influence tumor progression. We tested the hypothesis that blood levels of IL-12p40, the common subunit of both cytokines, are associated with melanoma progression. Blood from 2,048 white melanoma patients were collected at a single institution between March 1998 and March 2011. Plasma levels of IL-12p40 were determined for 573 patients (discovery), 249 patients (Validation 1) and 244 patients (Validation 2). Per 10-unit change of IL-12p40 level was used to investigate associations with melanoma patient outcome among all patients or among patients with early or advanced stage. Among stage I/II melanoma patients in the pooled data set, after adjustment for sex, age, stage and blood draw time from diagnosis, elevated IL-12p40 was associated with melanoma recurrence [hazard ratio (HR) = 1.04 per 10-unit increase in IL-12p40, 95% CI 1.02-1.06, p = 8.48 × 10(-5) ]; Elevated IL-12p40 was also associated with a poorer melanoma specific survival (HR = 1.06, 95% CI 1.03-1.09, p = 3.35 × 10(-5) ) and overall survival (HR = 1.05, 95% CI 1.03-1.08, p = 8.78×10(-7) ) in multivariate analysis. Among stage III/IV melanoma patients in the pooled data set, no significant association was detected between elevated IL-12p40 and overall survival, or with melanoma specific survival, with or without adjustment for the above covariates. Early stage melanoma patients with elevated IL-12p40 levels are more likely to develop disease recurrence and have a poorer survival. Further investigation with a larger sample size will be needed to determine the role of IL-12p40 in advanced stage melanoma patients.
Interleukin-12 Subunit p40
Published Version (Please cite this version)10.1002/ijc.29182
Publication InfoFang, S; Wang, Y; Chun, YS; Liu, H; Ross, MI; Gershenwald, JE; ... Lee, JE (2015). The relationship between blood IL-12p40 level and melanoma progression. Int J Cancer, 136(8). pp. 1874-1880. 10.1002/ijc.29182. Retrieved from http://hdl.handle.net/10161/10669.
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