文献类型: 外文期刊
第一作者: Niu, LiLi
作者: Niu, LiLi;Niu, LiLi;Wei, CaiHong;Du, LiXin
作者机构:
关键词: bovine mastitis;DEP;host response;2-DE
期刊名称:ARCHIV FUR TIERZUCHT-ARCHIVES OF ANIMAL BREEDING ( 影响因子:1.528; 五年影响因子:1.723 )
ISSN: 0003-9438
年卷期: 2013 年 56 卷
页码:
收录情况: SCI
摘要: Mastitis is the most common disease in dairy cows and has resulted in a tremendous economic loss in dairy industry. In the present study, differentially expressed proteins (DEP) were identified among healthy, moderate and severe mastitic cows by proteomic profiling. The health status of cows was closely determined by the somatic cell count (SCC). Differentially expressed proteins were resolved using the two-dimensional gel electrophoresis (2-DE) with the pH 4-7 non-linear DryStrips. Subsequently, 8 protein spots, which altered more than 3-fold, were isolated and identified with the matrix-assisted laser desorption/ionisationtime of flight mass spectrometry (MALDI TOF/TOF MS). The identified spots were split into four proteins: alpha-2-HS-glycoprotein, serum albumin, transthyretin (TTR) and haptoglobin, respectively. Compared with the healthy cows, the expression of haptoglobin was up-regulated in mastitic cows, and the others were down-regulated. Moreover, the proteomic data were consistent with the results of Western blot. All of the identified DEPs were acute phase proteins, which acted together and represented the consequence of serial cascades after mastitic infection. More importantly, the alpha-2-HS-glycoprotein was novel identified corresponding to the bovine mastitis in Chinese Holstein dairy cows. Taken together, our results indicate that the host responses may play an important role in the pathogenesis of mastitis and provide the potential diagnostic indicator of the underlying mastitis in dairy cows.
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