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Ma X, Zheng B, Wang J, Li G, Cao S, Wen Y, Huang X, Zuo Z, Zhong Z, Gu Y. Quinolone Resistance of Actinobacillus pleuropneumoniae Revealed through Genome and Transcriptome Analyses. Int J Mol Sci 2021; 22:ijms221810036. [PMID: 34576206 PMCID: PMC8472844 DOI: 10.3390/ijms221810036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/16/2022] Open
Abstract
Actinobacillus pleuropneumoniae is a pathogen that infects pigs and poses a serious threat to the pig industry. The emergence of quinolone-resistant strains of A.pleuropneumoniae further limits the choice of treatment. However, the mechanisms behind quinolone resistance in A.pleuropneumoniae remain unclear. The genomes of a ciprofloxacin-resistant strain, A. pleuropneumoniae SC1810 and its isogenic drug-sensitive counterpart were sequenced and analyzed using various bioinformatics tools, revealing 559 differentially expressed genes. The biological membrane, plasmid-mediated quinolone resistance genes and quinolone resistance-determining region were detected. Upregulated expression of efflux pump genes led to ciprofloxacin resistance. The expression of two porins, OmpP2B and LamB, was significantly downregulated in the mutant. Three nonsynonymous mutations in the mutant strain disrupted the water–metal ion bridge, subsequently reducing the affinity of the quinolone–enzyme complex for metal ions and leading to cross-resistance to multiple quinolones. The mechanism of quinolone resistance in A. pleuropneumoniae may involve inhibition of expression of the outer membrane protein genes ompP2B and lamB to decrease drug influx, overexpression of AcrB in the efflux pump to enhance its drug-pumping ability, and mutation in the quinolone resistance-determining region to weaken the binding of the remaining drugs. These findings will provide new potential targets for treatment.
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Affiliation(s)
- Xiaoping Ma
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (X.M.); (B.Z.); (J.W.); (G.L.); (Z.Z.); (Z.Z.)
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (Y.W.); (X.H.)
| | - Bowen Zheng
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (X.M.); (B.Z.); (J.W.); (G.L.); (Z.Z.); (Z.Z.)
| | - Jiafan Wang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (X.M.); (B.Z.); (J.W.); (G.L.); (Z.Z.); (Z.Z.)
| | - Gen Li
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (X.M.); (B.Z.); (J.W.); (G.L.); (Z.Z.); (Z.Z.)
- Bioengineering Department, Sichuan Water Conservancy Vocational College, Chengdu 611231, China
| | - Sanjie Cao
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (Y.W.); (X.H.)
- Correspondence: (S.C.); (Y.G.)
| | - Yiping Wen
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (Y.W.); (X.H.)
| | - Xiaobo Huang
- Research Center of Swine Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (Y.W.); (X.H.)
| | - Zhicai Zuo
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (X.M.); (B.Z.); (J.W.); (G.L.); (Z.Z.); (Z.Z.)
| | - Zhijun Zhong
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China; (X.M.); (B.Z.); (J.W.); (G.L.); (Z.Z.); (Z.Z.)
| | - Yu Gu
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence: (S.C.); (Y.G.)
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Kürekci C, Aydın M, Tekeli İO, Ambarcıoğlu P, Şengül SA, Sakin F. Occurrence and characterization of ciprofloxacin‐resistant
Escherichia coli
from bovine and ovine bulk tank milk samples in Turkey. J Food Saf 2021. [DOI: 10.1111/jfs.12881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Cemil Kürekci
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine Mustafa Kemal University Antakya Hatay Turkey
| | - Muhsin Aydın
- Department of Biology, Faculty of Science and Letters Adıyaman University Adıyaman Turkey
| | - İbrahim Ozan Tekeli
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine Mustafa Kemal University Antakya Hatay Turkey
| | - Pınar Ambarcıoğlu
- Department of Biostatistics, Faculty of Veterinary Medicine Mustafa Kemal University Antakya Hatay Turkey
| | - Seydi Ahmet Şengül
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine Mustafa Kemal University Antakya Hatay Turkey
| | - Fatih Sakin
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine Mustafa Kemal University Antakya Hatay Turkey
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