Immunohistochemical staining of CHI3L1 protein in the lung of inflammation-induced tumor mice.

<p><b>A)</b> Immunohistochemical staining in the lungs of doxycycline-treated or untreated CCSP-rtTA/(TetO)<sub>7</sub>-CMV-Stat3C mice; <b>B)</b> Immunohistochemical staining of tumor regions in the lungs of doxycycline-treated CCSP-rtTA/(TetO)<sub>7</sub>-CMV-MMP12 mice, c-fms-rtTA/(TetO)<sub>7</sub>-CMV-MMP12 mice, and c-fms-rtTA/(TetO)<sub>7</sub>-CMV-Api6 mice. -Dox: doxycycline-untreated mice; +Dox: doxycycline-treated mice.</p>