Use of Mycobacterium avium subsp paratuberculosis specific coding sequences for serodiagnosis of bovine paratuberculosis

被引：19

作者：

Leroy, B. ^{[1
]}

Viart, S. ^{[1
]}

Trinchero, N. ^{[2
]}

Roupie, V. ^{[3
]}

Govaerts, M.

Letesson, J. J. ^{[2
]}

Huygen, K. ^{[3
]}

Wattiez, R. ^{[1
]}

机构：

[1] Univ Mons Hainaut, Dept Prote & Prot Biochem, B-7000 Mons, Belgium

[2] Univ Namur, Lab Immunol Microbiol, Res Unit Mol Biol, Namur, Belgium

[3] WIV Pasteur Inst, Lab Mycobacterial Immunol, Brussels, Belgium

来源：

VETERINARY MICROBIOLOGY | 2009年 / 135卷 / 3-4期

关键词：

Specific antigens; Mycobacterium avium subsp Paratuberculosis; Serodiagnosis; ELISA; LINKED-IMMUNOSORBENT-ASSAY; JOHNES-DISEASE; INFECTION; DIAGNOSIS; CULTURE; CATTLE; PROTEINS; ANTIGENS; HERD; COWS;

D O I：

10.1016/j.vetmic.2008.09.065

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

In this study, the finished complete genome of Mycobacterium avium subsp. paratuberculosis (Map) was screened for specific coding sequences that could be very valuable in the design of a sensitive and specific Map detection serological assay. Eighty-seven Map-specific sequences were retained. Among these, three candidate antigens have been analysed for their serodiagnostic potential. These antigens were selected on the basis of their putative immunogenicity as predicted by in silico analysis. The antigens were cloned in Escherichia coli, expressed, and Purified before testing in an antibody detection ELISA test, using a well characterized panel of 18 and 48 sera from Map infected and uninfected cattle, respectively. Two of these antigens, antigen 6 and MAP1637c, yielded in our conditions a sensitivity of 72% and 82%, respectively, for a specificity of 98%. It is particularly noticeable that, when probed with the same serum panel, the most widely used European paratuberculosis commercial seroassay (Pourquier test) yielded a sensitivity of 72% for a specificity of only 92%. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：313 / 319

页数：7

共 34 条

[1] Optimizing antigen Cocktails for detection of Mycobacterium bovis in herds with different prevalences of bovine tuberculosis:: ESAT6-CFP10 mixture shows optimal sensitivity and specificity [J].