期刊文献+

牛分枝杆菌分子标识物的筛选及在豚鼠体内的评价 被引量:1

Screening of molecular markers of Mycobacterium bovis and preliminary evaluation in guinea pigs
原文传递
导出
摘要 【背景】牛结核病(bovine tuberculosis,BTB)是一种由结核分枝杆菌(Mycobacterium tuberculosis)复合体中的牛分枝杆菌(Mycobacterium bovis)引起的慢性传染性疾病,对牛群健康、畜牧业经济和公共卫生构成了重大威胁。【目的】筛选牛分枝杆菌新型诊断分子标识物,以期建立牛结核病新型诊断方法。【方法】利用同位素标记的相对与绝对定量技术并结合文献报道筛选出Mpb70、GroEL2、HspX、DnaK、Mpb83、EsxW、BfrB、Hrp1、EsxL、AtpD和EsxN这11种蛋白质进行制备,并通过豚鼠模型评价其致敏效果。【结果】当重组蛋白量为100μg时,Mpb70、HspX、Mpb83和EsxN可引起明显的迟发型过敏反应,并且出现破溃。当使用量为50μg时,Mpb70、HspX、Mpb83、EsxW、EsxL和EsxN可引起明显的迟发型过敏反应。当使用量低至12.5μg时,则无法引起豚鼠的迟发型过敏反应。对不同蛋白进行组合使用,EsxW/EsxL/EsxN组合的活性最好,可刺激豚鼠产生明显的迟发型过敏反应;EsxW/EsxL、EsxW/EsxN、EsxL/EsxN组合也可引起迟发型过敏反应,但其反应程度不如EsxW/EsxL/EsxN组合。【结论】重组蛋白Mpb70、HspX、Mpb83、EsxW、EsxL和EsxN可引起较好的迟发型过敏反应,具有可替代结核菌素的应用前景。 [Background]Bovine tuberculosis(BTB)is a chronic infectious disease caused by Mycobacterium bovis,a part of the Mycobacterium tuberculosis complex,posing threats to cattle health,livestock economies,and public health.[Objective]In order to screen new diagnostic molecular markers of Mycobacterium bovis and establish new diagnostic method for bovine tuberculosis.[Methods]Using isotopic labeling-based relative and absolute quantification techniques and article screening,we identified 11 proteins(Mpb70,GroEL2,HspX,DnaK,Mpb83,EsxW,BfrB,Hrp1,EsxL,AtpD,and EsxN)for further evaluation.These recombinant proteins were then assessed for sensitization effects in a guinea pig model.[Results]At a dose of 100μg,Mpb70,HspX,Mpb83,and EsxN induced marked delayed-type hypersensitivity(DTH)and rupture.At a dose of 50μg,Mpb70,HspX,Mpb83,EsxW,EsxL,and EsxN provoked significant DTH.At a dose of 12.5μg,the proteins did not induce DTH.Among the protein combinations,EsxW/EsxL/EsxN showed the highest activity,triggering robust DTH in guinea pigs.Other combinations such as EsxW/EsxL,EsxW/EsxN,and EsxL/EsxN also induced DTH,though to a lesser extent than EsxW/EsxL/EsxN.[Conclusion]Recombinant proteins Mpb70,HspX,Mpb83,EsxW,EsxL,and EsxN elicited notable DTH,demonstrating the potential as tuberculin substitutes.
作者 辛凌翔 孙伟峰 王楠 李俊平 朱良全 王豪杰 徐磊 郭鑫 XIN Lingxiang;SUN Weifeng;WANG Nan;LI Junping;ZHU Liangquan;WANG Haojie;XU Lei;GUO Xin(China Agricultural University,Beijing 100193,China;China Institute of Veterinary Drug Control,Beijing 100081,China)
出处 《微生物学通报》 北大核心 2025年第2期623-631,共9页 Microbiology China
基金 国家重点研发计划(2022YFD1800703)。
关键词 豚鼠模型 迟发型过敏反应 重组蛋白 结核菌素 guinea pig model delayed-type hypersensitivity recombinant protein tuberculin
作者简介 Corresponding authors:徐磊.E-mail:XU Lei,609697832@qq.com;Corresponding authors:郭鑫.E-mail:GUO Xin,guoxincau@cau.edu.cn。
  • 相关文献

参考文献5

二级参考文献38

  • 1孟丽丽,齐孟文.稳定同位素标记方法在蛋白质组学定量分析中的应用[J].同位素,2005,18(4):245-249. 被引量:6
  • 2崔杰,李滨胜,史淑芝,鲁兆新.植物甜菜碱醛脱氢酶基因工程研究进展[J].中国甜菜糖业,2006(1):40-44. 被引量:7
  • 3Cole ST, Brosch R, Parkhill J, et al. Deciphering the biology of Mycobacterium tuberculosis from the complete genome sequence [ J ]. Nature, 1998, 393 (6685): 537-544.
  • 4RAO PK, LI QB. Protein turnover in mycobaeterial proteomics [J]. Molecules, 2009, 14 (9): 3237-3258.
  • 5Starck J, Kllenius G, Marklund BI, et al. Comparative proteome analysis of Mycobacterium tuberculosis grown under aerobic and anaerobic conditions [J]. Microbiology, 2004, 150 (Pt 11) : 3821-3829.
  • 6Gumber S, Whittington RJ. Analysis of the growth pattern, survival and proteome of Mycobactefiumavium subsp, paratuberculosis following exposure to heat [J]. Vet Microbiol, 2009, 136 (1-2) : 82-90.
  • 7Bahk YY, Kim SA, Kim JS, et al. Antigens secreted from My- cobacterium tuberculosis: identification by proteomics approach and test for diagnostic marker [J]. Proteomics, 2004, 4 (11) : 3299- 3307.
  • 8Agranoff D, Femandez-Reyes D, Papadopoulos MC, et al. Identi- fication of diagnostic markers for tuberculosis by proteomic fingerprinting of serum [J]. Lancet, 2006, 368 (9540) : 1012- 1021.
  • 9DENG C, LIN M, HU C, et al. Exploring serological classification tree model of active pulmonary tuberculosis by magnetic beads pretreatment and MALDI-TOF MS analysis [J]. Scand J Immunol, 2011, 74 (4): 397-405.
  • 10WANG FF, Massire C, LI HJ, et al. Molecular characterization of drug-resiatant Mycobacterium tuberculosis isolates circulating in China by multilecus PCR and electrospray ionization mass spectrometry[J].J Clin Micrebiol, 2011, 49 (7) : 2719-2721.

共引文献27

同被引文献20

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部