|
|
Effect on the Expression of Cytokine, Receptor and Apoptosis in BMECs by Staphylococcus aureus and Escherichia coli Infected |
|
|
Abstract The occurrence of cow (Bos taurus) mastitis has restricted the development of dairy industry. It damages the cow health and reduces the quality of dairy products.The main cause of mastitis is pathogenic microorganism. Pathogenic microorganisms could induce cell apoptosis and thus interfere the development of the disease process. The purpose of this study was to explore the expression of cytokines and receptors, and the level of cell apoptosis in bovine mammary epithelial cells (BMECs) infected by Staphylococcus aureus and Escherichia coli. This study was intended to explore the S. aureus and E. coli (with fabrication: Oli) infected BMECs on the expression of cytokine. The BMECs were cultured in vitro and identified by immunohistochemistry, then the purified fifth generation of BMECs were selected and infected S. aureus or E. coli with the concentration of 0, 101, 102, 103, 104 CFU/mL, respectively. By the formula computing, the best infected quantity of S. aureus and E.coil was 0.6 mL; and the number of cell apoptosis was detected by one-step TUNEL (terminal dexynucleotidyl transferase (TdT)-mediated dUTP nick end labeling). The expression of interleukin-1β (IL-1β), IL1RⅠ and TNF-α were detected by means of qRT-PCR detection. The results showed that cells expressed not only keratin 18 also beta casein. In addition, the BMECs didn't express vimentin. The cultured cells were identified as BMECs. The highest mRNA expression of IL1RⅠ, IL-1β and TNF-α were at the S.aureus concentrations of 102 CFU/mL, 104 CFU/mL and 103 CFU/mL, respectively. The highest mRNA expression of IL1RⅠ, IL-1β and TNF-α were at the E. coli concentrations of 101 CFU/mL, 103 CFU/mL and 104 CFU/mL, respectively. The apoptosis rate was the highest at 104 CFU/mL with a concentration of cells treated by S.aureus or E. coli. The result indicated that different concentrations of bacterial infecting BMEC could increase the expression of cell factor, while decreased the expression of the receptor, which led to apoptosis of BMEC. This consequence could provide scientific basis for the pathogenesis of mastitis caused by bacterial infection .
|
Received: 09 March 2018
Published: 20 November 2018
|
|
|
|
|
[1]Reshi A A, Husain I, Bhat S A, et al.BOVINE MASTITIS AS AN EVOLVING DISEASE AND ITS IMPACT ON THE DAIRY INDUSTRY.[J].Solid State Phenomena, 2015, 04(7):194-2262375.[2]Taponen S, Liski E, Heikkil? A M, et al.Factors associated with intramammary infection in dairy cows caused by coagulase-negative staphylococci, Staphylococcus aureus, Streptococcus uberis, Streptococcus dysgalactiae, Corynebacterium bovis, or Escherichia coli.[J].Journal of Dairy Science, 2017, 100((1):):493-493[3]杨永新, 曹随忠, 张勇等.金黄色葡萄球菌乳房炎奶牛血浆的比较蛋白质组研究[J].农业生物技术学报, 2011, 19(2):350-355[4]徐继英, 刘俊林, 李先波, 等.我国部分地区奶牛乳房炎源大肠杆菌生物学特性及耐药性分析[J].[J].农业生物技术学报, 2012. , 20((9)):1035-1041[5]Schukken Y H, Günther J, Fitzpatrick J, et al.Host-response patterns of intramammary infections in dairy cows. [J].Veterinary Immunology & Immunopathology, 2011., 144((3–4)): 270-289[6]Elzinga B M, Twomey C, Powell J C, et al.Interleukin-1 receptor type 1 is a substrate for gamma-secretase-dependent regulated intramembrane proteolysis. [J].Journal of Biological Chemistry,, 2009, 284((3)):1394.-409[7] Wang C E, Li S, Li X J.Lack of interleukin-1 type 1 receptor enhances the accumulation of mutant huntingtin in the striatum and exacerbates the neurological phenotypes of Huntington[J].Molecular Brain, 2010, 3((1)):3-33[8]Goshen I, YIRMIYA R.Interleukin-1 (IL-1): a central regulator of stress responses . [J].Frontiers in neuroendocrinology, 2009, 30((1)):30-45[9]Parton M, Das T, Sa G, et al.Tumour Necrosis Factor – Misnomer and Therapeutic Target[M]// Renal Cell Carcinoma. Humana Press, 2009. 425-448.[10]李艳, 吕晓峰, 徐凯, 等.脂多糖对奶牛乳腺上皮细胞IL-6、IL-8和TNF-αmRNA表达的影响. [J].上海畜牧兽医通讯, 2016, 003((5)): 11-15[11]杨彬, 孙志鹏, 徐丹丹, 等.金黄葡萄球菌对奶牛乳腺上皮细胞E钙黏蛋白表达的影响. [J].中国兽医学报, 2016, 36( (8)): 1307-1311[12]Livak K J, Schmittgen T D.Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) method. [J].Methods (San Diego, Calif), 2001, 25((4)):402-408[13]陈建晖, 佟慧丽, 李庆章, 等.奶牛乳腺上皮细胞系的建立. [J].畜牧兽医学报, 2009, 40((5)):743-747.[14]厉世伟, 谷静娟, 赵璐, 等.荷斯坦奶牛乳腺上皮细胞的分离培养. [J].中兽医医药杂志, 2013, 32( (1)):5-9[15]吴娟, 王凤龙, 王申元, 等.奶牛乳腺上皮细胞的原代培养(英文). [J].Agricultural Science & Technology, 2009, 10((01)):119-123[16]Riley L G, Wynn P C, Williamson P, et al.The role of native bovine alpha-lactalbumin in bovine mammary epithelial cell apoptosis and casein expression. [J].Journal of Dairy Research, 2008, 75((3)):319-325[17]Anayalópez J L, Contrerasguzmán O E, Cárabeztrejo A, et al.Invasive potential of bacterial isolates associated with subclinical bovine mastitis.[J].Research in Veterinary Science,, 2006, 81((3)):358-361[18]Oltenacu P A, Broom D M, Kirkwood J K, et al.The impact of genetic selection for increased milk yield on the welfare of dairy cows. [J].Animal Welfare, 2010., 19((1)):39-49[19] Bannerman D D, Paape M J, Lee J W, et al.Escherichia coli and Staphylococcus aureus elicit differential innate immune responses following intramammary infection.[J].Clin Diagn Lab Immunol, 2004., 11((3)):463-472[20]Wei Z, Yao M, Li Y, et al.Retraction Note to: Inhibition of Lipopolysaccharide (LPS)-Induced Inflammatory Responses by Selenium in Bovine Mammary Epithelial Cells in Primary Culture. [J].Inflammation, 2015, 38((4)):1662-1662[21] Zbinden C, Stephan R, Johler S, et al.The Inflammatory Response of Primary Bovine Mammary Epithelial Cells to Staphylococcus aureus Strains Is Linked to the Bacterial Phenotype. .[J].Plos One, 2014, 9((1):):73-74[22]M.Khatun, H.B.H. J?rgensen, A. Ehsani, M.S. Lund, G. Sahana, P. S?rensen, C.M. R?ntved. Whole blood optimization and genetic association of ex vivo TNF-α responsiveness to killed E. coli in Danish Holstein cows. [J].Livestock Science, 2017, .201(10):04-014[23]Lahouassa H, Moussay E, Rainard P, et al.Differential cytokine and chemokine responses of bovine mammary epithelial cells to Staphylococcus aureus and Escherichia coli [J].Cytokine, 2007, 38((1)):12-21[24]Zheng L, Xu Y, Lu J, et al.Variant innate immune responses of mammary epithelial cells to challenge by Staphylococcus aureus, Escherichia coli and the regulating effect of taurine on these bioprocesses.[J].Free Radical Biology & Medicine, 2016, 96(166.):04-22[25]Pilla R, Schwarz D, K?nig S, et al.Microscopic differential cell counting to identify inflammatory reactions in dairy cow quarter milk samples. .[J].Journal of Dairy Science, 2012, 95((8)):4410-4420 |
|
|
|