Abstract
Objective To analyze and compare the proteomes expressed by human pancreatic carcinoma, chronic pancreatitis and normal control groups. Methods Differencial expression of the proteomes in peripheral serum was analyzed by fluorescence 2-D difference gel electrophoresis (2D-DIGE). Results 2D-DIGE protein maps in 20 patients with pancreatic cancer, 10 patients with chronic pancreatitis and 20 normal controls were analyzed and 168 spots were identified by gel-analysis software. Between pancreatic cancer group and normal control group 22 protein spots were up-regulated and 29 spots down-regulated; 24 spots were up-regulated and 54 spots down-expressed between pancreatic cancer group and chronic pancreatitis group; 20 spots were up-regulated and 19 spots down-regulated between chronic pancreatitis group and normal control group. Conclusion 2D-DIGE was a rapid and efficient method to separate proteins. 2D-DIGE protein maps and different protein spots would provide an exprimental basis for the phase of mass spectrometry. Key words: Pancreatic carcinoma; 2D-DIGE; Proteomics
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