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(A) Lamina propria cells surrounding Lieberkühn’s crypts of the colon, staining positive with monoclonal anti-Rep antibodies. (B) Schematic representation of active sites of inflammation-caused oxygen radical activity indicated by white arrows pointing to blue stars. (C) Experimental confirmation staining of Rep-positive lamina propria cells with antibodies directed against 8-hydroxy-guanosin as a marker for oxygen radical activity (yellow staining). Reproduced [6] with permission.
