Figure 1
From: Snail promotes an invasive phenotype in lung carcinoma
Snail and claudin immunoreactivity in different carcinomas. A. in a small cell carcinoma of the lung, intense nuclear snail positivity, B. in a large cell carcinoma of the lung, nuclear positivity for snail, C. in a squamous cell carcinoma, membrane bound positivity for claudin 1 can be detected. The stromal tissue is negative and D. in an adenocarcinoma of the lung, membrane bound positivity for claudin 3 can be seen. Scale bar is 200 μm in the figures. Positive examples are shown in figure by arrows (→).