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Zhou D, Zhi FJ, Qi MZ, Bai FR, Zhang G, Li JM, Liu H, Chen HT, Lin PF, Tang KQ, Liu W, Jin YP, Wang AH. Brucella induces unfolded protein response and inflammatory response via GntR in alveolar macrophages. Oncotarget 2017; 9:5184-5196. [PMID: 29435171 PMCID: PMC5797042 DOI: 10.18632/oncotarget.23706] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 12/04/2017] [Indexed: 01/18/2023] Open
Abstract
Brucella is an intracellular bacterium that causes the zoonosis brucellosis worldwide. Alveolar macrophages (AM) constitute the main cell target of inhaled Brucella. Brucella thwarts immune surveillance and evokes endoplasmic reticulum (ER) stress to replicate in macrophages via virulence factors. The GntR regulators family was concentrated as an important virulence factor in controlling virulence and intracellular survival of Brucella. However, the detailed underlying mechanism for the host-pathogen interaction is poorly understood. In this study the BSS2_II0438 mutant (ΔGntR) was constructed. The type IV secretion system (T4SS) virulence factor genes (VirB2, VirB6, and VirB8) were down-expression in ΔGntR. ΔGntR could infect and proliferate to high titers in GAMs without a significant difference compared with the parental strain. ΔGntR infection increased the expression of ER stress marker genes GRP78, ATF6, and PERK in the early stages of its intracellular cycle but decreased the expression of these genes in the late stages. ΔGntR increased greatly the number of Brucella CFUs in the inactive ER stress state in GAMs. Meanwhile, ΔGntR infection increased the levels of IFN-γ, IL-1β, and TNF-α, indicating ΔGntR could induce the secretion of inflammatory but not anti-inflammatory cytokines IL-10. Taken together, our results clarified the role of the GntR in B. suis. S2 virulence expression and elucidated that GntR is potentially involved in the signaling pathway of the Brucella-induced UPR and inflammatory response in GAMs.
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Affiliation(s)
- Dong Zhou
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Fei-Jie Zhi
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Mao-Zhen Qi
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Fu-Rong Bai
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Guangdong Zhang
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jun-Mei Li
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Huan Liu
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Hua-Tao Chen
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Peng-Fei Lin
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ke-Qiong Tang
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Wei Liu
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ya-Ping Jin
- Key Laboratory of Animal Biotechnology of The Ministry of Agriculture, Northwest A&F University, Yangling, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ai-Hua Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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Qi MZ, Fang YQ, Wang XT, Zhang LX, Wang RJ, Du SZ, Guo YX, Jia YQ, Yao L, Liu QD, Zhao GH. Molecular characterization of Cryptosporidium spp. in pre-weaned calves in Shaanxi Province, north-western China. J Med Microbiol 2014; 64:111-116. [PMID: 25385243 DOI: 10.1099/jmm.0.079327-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Cryptosporidium, a worldwide protozoan parasite, is one of the most common causes of diarrhoea in humans and animals. The aim of the present study was to determine Cryptosporidium species/genotypes in pre-weaned calves in Shaanxi Province using PCR and sequencing based on the small subunit rRNA gene. A total of 258 faecal samples were collected from pre-weaned calves in 19 different farms from six areas in Shaanxi Province, north-western China. Cryptosporidium infection was detected in 14 of 19 farms (73.7 %), with a total prevalence of 20.2 % (52/258). Both dairy and Qinchuan (beef) cattle were found with Cryptosporidium infection. Three Cryptosporidium species, namely Cryptosporidium bovis (n = 26), Cryptosporidium andersoni (n = 14) and Cryptosporidium ryanae (n = 12), were detected in pre-weaned calves in Shaanxi Province, with C. bovis (in 12 farms) identified as the most common species on cattle farms. Two additional and previously unknown C. ryanae genotypes, CRTypes III and IV, were observed in the present study. However, the zoonotic species, Cryptosporidium parvum, was not detected in this study, which suggested a low zoonotic potential in Cryptosporidium-infected pre-weaned calves in this province.
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Affiliation(s)
- M Z Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Y Q Fang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - X T Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - L X Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province 450002, PR China
| | - R J Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province 450002, PR China
| | - S Z Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Y X Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Y Q Jia
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - L Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Q D Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - G H Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
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Zhu YB, Zhang JZ, Qi MZ, Xia SB, Liu D, Heidbrink WW, Wan BN, Li JG. Development of an integrated energetic neutral particle measurement system on experimental advanced full superconducting tokamak. Rev Sci Instrum 2014; 85:11E107. [PMID: 25430286 DOI: 10.1063/1.4886431] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Full function integrated, compact silicon photodiode based solid state neutral particle analyzers (ssNPA) have been developed for energetic particle (EP) relevant studies on the Experimental Advanced Superconducting Tokamak (EAST). The ssNPAs will be mostly operated in advanced current mode with a few channels to be operated in conventional pulse-counting mode, aiming to simultaneously achieve individually proved ultra-fast temporal, spatial, and spectral resolution capabilities. The design details together with considerations on EAST specific engineering realities and physics requirements are presented. The system, including a group of single detectors on two vertical ports and two 16-channel arrays on a horizontal port, can provide both active and passive charge exchange measurements. ssNPA detectors, with variable thickness of ultra thin tungsten dominated foils directly deposited on the front surface, are specially fabricated and utilized to achieve about 22 keV energy resolution for deuterium particle detection.
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Affiliation(s)
- Y B Zhu
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - J Z Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M Z Qi
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - S B Xia
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - D Liu
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - W W Heidbrink
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - J G Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
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Zhao GH, Ren WX, Gao M, Bian QQ, Hu B, Cong MM, Lin Q, Wang RJ, Qi M, Qi MZ, Zhu XQ, Zhang LX. Genotyping Cryptosporidium andersoni in cattle in Shaanxi Province, Northwestern China. PLoS One 2013; 8:e60112. [PMID: 23560072 PMCID: PMC3613348 DOI: 10.1371/journal.pone.0060112] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 02/21/2013] [Indexed: 11/21/2022] Open
Abstract
The present study examined the prevalence and genotypes of Cryptosporidium andersoni in cattle in Shaanxi province, China. A total of 2071 fecal samples (847 from Qinchuan cattle and 1224 from dairy cattle) were examined for the presence of Cryptosporidium oocysts, and 70 samples (3.4%) were C. andersoni-positive and those positive samples were identified by PCR amplification of the small subunit ribosomal RNA (SSU rRNA) and the Cryptosporidium oocyst wall protein (COWP) genes. C. andersoni was the only species found in the examined cattle in this province. Fifty-seven C. andersoni isolates were characterized into 5 MLST subtypes using multilocus sequence typing analysis, including a new subtype in the native beef breed Qinchuan cattle. All of these C. andersoni isolates presented a clonal genetic structure. These findings provide new insights into the genetic structure of C. andersoni isolates in Shaanxi province and basic data of Cryptosporidium prevalence status, which in turn have implications for controlling cryptosporidiosis in this province.
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Affiliation(s)
- Guang-Hui Zhao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Wan-Xin Ren
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Man Gao
- Pulike Biological Engineering Inc., Luoyang, Henan Province, China
| | - Qing-Qing Bian
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Bing Hu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Mei-Mei Cong
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Qing Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Rong-Jun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Meng Qi
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, China
| | - Mao-Zhen Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
- * E-mail: (XQZ); (LXZ)
| | - Long-Xian Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, China
- * E-mail: (XQZ); (LXZ)
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Li CJ, Bi LG, Zhu BJ, Qi MZ, Zhao CX, Xu YF, Yao ZL, Lu ZS, Sun SM, Dong H. Effects of acupuncture on left ventricular function, microcirculation, cAMP and cGMP of acute myocardial infarction patients. J TRADIT CHIN MED 1986; 6:157-61. [PMID: 3027460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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