Normal looking squamous esophageal epithelium is characterized by higher percentage of CD4⁺CD103⁺-cells.

<p>Panel A depicts percentage of CD103⁺-cells of the population of CD4⁺-cells (CD4⁺CD103⁺) in 14 days <i>ex vivo</i> culture of normal looking squamous epithelial biopsies from controls (C SQ 5 cm: 5 cm above the Z-line), RE patients and (RE 5 cm: 5 cm above the inflamed RE tissue) and BE patients (BE SQ 5 cm: 5 cm above the BE tissue. Panel B represents CD4⁺CD103⁺-percentage in 14 days <i>ex vivo</i> culture of normal looking squamous epithelial biopsies of controls (C SQ 2 cm: 2 cm above the Z-line) and inflamed esophageal tissue of RE-patients (RE). Panel A: Kruskal-Wallis test. Panel B: Mann-Whitney test. Mean value and SEM are calculated.