Title |
Pyruvate kinase is necessary for Brucella abortus full virulence in BALB/c mouse
|
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Published in |
Veterinary Research, August 2016
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DOI | 10.1186/s13567-016-0372-7 |
Pubmed ID | |
Authors |
Jianpeng Gao, Mingxing Tian, Yanqing Bao, Peng Li, Jiameng Liu, Chan Ding, Shaohui Wang, Tao Li, Shengqing Yu |
Abstract |
Brucellosis, caused by a facultative intracellular pathogen Brucella, is one of the most prevalent zoonosis worldwide. Host infection relies on several uncanonical virulence factors. A recent research hotpot is the links between carbon metabolism and bacterial virulence. In this study, we found that a carbon metabolism-related pyruvate kinase (Pyk) encoded by pyk gene (locus tag BAB_RS24320) was associated with Brucella virulence. Determination of bacterial growth curves and resistance to environmental stress factors showed that Pyk plays an important role in B. abortus growth, especially under the conditions of nutrition deprivation, and resistance to oxidative stress. Additionally, cell infection assay showed that Pyk is necessary for B. abortus survival and evading fusion with lysosomes within RAW264.7 cells. Moreover, animal experiments exhibited that the Pyk deletion significantly reduced B. abortus virulence in a mouse infection model. Our results elucidated the role of the Pyk in B. abortus virulence and provided information for further investigation of Brucella virulence associated carbon metabolism. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Spain | 1 | 3% |
United States | 1 | 3% |
Unknown | 31 | 94% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 7 | 21% |
Student > Ph. D. Student | 6 | 18% |
Professor | 4 | 12% |
Student > Bachelor | 3 | 9% |
Student > Doctoral Student | 2 | 6% |
Other | 6 | 18% |
Unknown | 5 | 15% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 11 | 33% |
Immunology and Microbiology | 8 | 24% |
Biochemistry, Genetics and Molecular Biology | 3 | 9% |
Nursing and Health Professions | 2 | 6% |
Veterinary Science and Veterinary Medicine | 2 | 6% |
Other | 1 | 3% |
Unknown | 6 | 18% |