Title |
MicroRNA-199a Inhibits Cellular Autophagy and Downregulates IFN-β Expression by Targeting TBK1 in Mycobacterium bovis Infected Cells
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Published in |
Frontiers in Cellular and Infection Microbiology, July 2018
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DOI | 10.3389/fcimb.2018.00238 |
Pubmed ID | |
Authors |
Jie Wang, Tariq Hussain, Ruichao Yue, Yi Liao, Qiang Li, Jiao Yao, Yinjuan Song, Xin Sun, Nan Wang, Lei Xu, Srinand Sreevatsan, Deming Zhao, Xiangmei Zhou |
Abstract |
The mechanism by which microRNAs (miRNAs) modulate innate immunity and autophagy has not been fully elucidated in Mycobacterium bovis (M. bovis) infections. In this study, we identified that miR-199a inhibited key innate immune responses and autophagy in murine macrophages infected with M. bovis. Using ex vivo and in vitro approaches we show that the expression of miR-199a was significantly increased during M. bovis infection. Furthermore, miR-199a suppressed autophagy and interferon-β (IFN-β) production by directly targeting TANK-binding kinase 1 (TBK1) mRNA in both J774a.1 and BMDM cells. Upregulation of miR-199a or TBK1 silencing (siTBK1) inhibited maturation of autophagosomes and increased M. bovis survival. Our results demonstrate that, by targeting of TBK1, miR-199a modulates innate immune responses and promote the intracellular survival and growth of M. bovis. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 25% |
Unknown | 3 | 75% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 4 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 26 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 5 | 19% |
Researcher | 4 | 15% |
Student > Doctoral Student | 3 | 12% |
Student > Master | 2 | 8% |
Student > Bachelor | 1 | 4% |
Other | 0 | 0% |
Unknown | 11 | 42% |
Readers by discipline | Count | As % |
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Immunology and Microbiology | 5 | 19% |
Biochemistry, Genetics and Molecular Biology | 4 | 15% |
Veterinary Science and Veterinary Medicine | 3 | 12% |
Agricultural and Biological Sciences | 2 | 8% |
Medicine and Dentistry | 2 | 8% |
Other | 0 | 0% |
Unknown | 10 | 38% |