Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12967-015-0751-2/MediaObjects/12967_2015_751_Fig2_HTML.gif)
Representative example of the immunoblotting pattern displayed by the same serum tested on the different antigenic extracts. a CCLP1 cell line; b CCSW1 cell line; c tumour part of cholangiocarcinoma; d non-tumour part adjacent to the cholangiocarcinoma; e normal liver. Counts with arrows correspond to the different immunoreactive spots detected on the corresponding Coomassie-stained gel (see Figs. 3, 4, 5, 6, 7) and listed in Additional file 1: Table S1a, b