ELISA analyses of CHI3L1 protein in BALF and serum of systemic inflammation-induced lung tumor mice.

<p>Left: CHI3L1 protein concentrations in BALF and serum of doxycycline-treated and untreated bitransgenic mice. Right: ROC (Receiver Operating Characteristic) curve analyses to determine the area under the curve (AUC). Dox-: doxycycline-untreated mice; Dox+: doxycycline-treated mice without showing lung tumor; Cancer, doxycycline-treated mice with lung tumor. <b>A)</b> c-fms-rtTA/(TetO)<sub>7</sub>-CMV-MMP12 mice. Mean ± SD in BALF (n>7), DOX -: 17.7±13.8, DOX +: 42.1±67.9, Cancer: 70.9±36.5. Mean ± SD in serum (n>7), DOX -: 39.1±25.6, DOX +: 57.7±55.5, Cancer: 232.3±110.6. The gray lines represent the mean values; <b>B)</b> c-fms-rtTA/(TetO)<sub>7</sub>-CMV-Api6 mice. Mean ± SD in BALF (n>6), DOX -: 69.6±16.6, DOX +: 73.2±28.1, Cancer: 189.9±47.2. Mean ± SD in serum (n>6), DOX -: 25.2±7.3, DOX +: 21.0±11.7, Cancer: 69.5±19.1. The gray lines represent the mean values.</p>