Fig. 9From: The cullin4A is up-regulated in chronic obstructive pulmonary disease patient and contributes to epithelial-mesenchymal transition in small airway epitheliumCUL4A is highly positively correlated with the expression of Slug in small airway epithelium of COPD. a The expression of CUL4A and Slug was analyzed by immunohistochemistry in small airway epithelium of COPD. b Correlations between the levels of CLU4A and the levels of Slug in small airway epithelium of COPDBack to article page