Proteomic analysis of differentially expressed serum proteins in lung cancer

Published on Jan 1, 2012in Central European Journal of Biology
· DOI :10.2478/s11535-012-0016-5
Shilpa Bhatnagar2
Estimated H-index: 2
(Hamdard University),
Naveen Chaudhary3
Estimated H-index: 3
(Hamdard University)
+ 2 AuthorsS. K. Jain24
Estimated H-index: 24
(Hamdard University)
Lung cancer continues to represent a major public health concern with high morbidity and mortality worldwide. Early detection of lung cancer is problematic due to a lack of diagnostic markers with high sensitivity and specificity. To determine the differently expressed proteins in the serum of lung cancer and identify the function of such proteins, two-dimensional electrophoresis (2DE) and liquid chromatography mass spectrometry (LC-MS) were used to screen the serum of lung cancer model induced by 4-(methylnitrosoamino)- 1-(3-pyridyl)-1-butanone (NNK). A total of 25 protein spots were qualitatively different and 6 were quantitatively different in the serum from rats bearing induced lung cancer when compared with normal controls. Two of the proteins that showed major changes in concentration in sera were identified to be Immunoglobulin γ 2A chain C region (heavy chain) and Transferrin by LC-MS/MS.
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