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Colombatti Olivieri MA, Fresia P, Graña M, Cuerda MX, Nagel A, Alvarado Pinedo F, Romano MI, Caimi K, Berná L, Santangelo MP. Genomic comparison of two strains of Mycobacterium avium subsp. paratuberculosis with contrasting pathogenic phenotype. Tuberculosis (Edinb) 2023; 138:102299. [PMID: 36587510 DOI: 10.1016/j.tube.2022.102299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/28/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
In a previous study, we evaluated the degree of virulence of Mycobacterium avium subsp. paratuberculosis (Map) strains isolated from cattle in Argentina in a murine model. This assay allowed us to differentiate between high-virulent MapARG1347 and low-virulent MapARG1543 strains. To corroborate whether the differences in virulence could be attributed to genetic differences between the strains, we performed Whole Genome Sequencing and compared the genomes and gene content between them and determined the differences related to the reference strain MapK10. We found 233 SNPs/INDELS in one or both strains relative to Map K10. The two strains share most of the variations, but we found 15 mutations present in only one of the strains. Considering NS-SNP/INDELS that produced a severe effect in the coding sequence, we focus the analysis on four predicted proteins, putatively related to virulence. Survival of MapARG1347 strain in bMDM was higher than MapARG1543 and was more resistant to acidic pH and H2O2 stresses than MapK10. The genomic differences between the two strains found in genes MAP1203 (a putative peptidoglycan hydrolase), MAP0403 (a putative serine protease) MAP1003c (a member of the PE-PPE family) and MAP4152 (a putative mycofactocin binding protein) could contribute to explain the contrasting phenotype previously observed in mice models.
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Affiliation(s)
- M A Colombatti Olivieri
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Dr. Nicolás Repetto y De Los Reseros S/Nº B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - P Fresia
- Unidad Mixta Pasteur+INIA, Institut Pasteur de Montevideo, Mataojo 2020, CP11400, Montevideo, Uruguay.
| | - M Graña
- Unidad de Bioinformática, Institut Pasteur de Montevideo, Mataojo 2020, CP11400, Montevideo, Uruguay.
| | - M X Cuerda
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Dr. Nicolás Repetto y De Los Reseros S/Nº B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - A Nagel
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Dr. Nicolás Repetto y De Los Reseros S/Nº B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - F Alvarado Pinedo
- Centro de Diagnóstico e Investigaciones Veterinarias (CEDIVE), Facultad de Ciencias Veterinarias - Universidad de La Plata (UNLP), Chascomus, Buenos Aires, Argentina.
| | - M I Romano
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Dr. Nicolás Repetto y De Los Reseros S/Nº B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - K Caimi
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Dr. Nicolás Repetto y De Los Reseros S/Nº B1686IGC, Hurlingham, Buenos Aires, Argentina.
| | - L Berná
- Unidad de Biología Molecular, Institut Pasteur de Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay.
| | - M P Santangelo
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), INTA-CONICET, Dr. Nicolás Repetto y De Los Reseros S/Nº B1686IGC, Hurlingham, Buenos Aires, Argentina.
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Liu H, Su L, Zhu T, Zhu X, Zhu Y, Peng Y, Zhang K, Wang L, Hu C, Chen H, Chen Y, Guo A. Comparative Analysis on Proteomics Profiles of Intracellular and Extracellular M.tb and BCG From Infected Human Macrophages. Front Genet 2022; 13:847838. [PMID: 35419023 PMCID: PMC8995892 DOI: 10.3389/fgene.2022.847838] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/08/2022] [Indexed: 11/22/2022] Open
Abstract
Tuberculosis is the second cause in infectious diseases leading to human death. Understanding the virulence mechanism is inevitable if the disease needs to be fully cured. Therefore, this study aimed to reveal this mechanism by comparing proteomic profiles of intracellular and extracellular virulent strain M.tb and bacille Calmette–Guérin (BCG) from infected THP-1cells. First, M.tb and BCG infected THP-1 at MOI 10:1. Twelve hours postinfection, intracellular bacteria of M.tb and BCG were collected, whereas the two bacilli cultured in 7H9 broth media were used as the control. Then four groups of bacilli were subjected to proteomic analysis, and differential proteomic profiles between M.tb and BCG were comparatively analyzed with bioinformatics tools. As a result, we identified a total of 1,557 proteins. Further, they were divided into four groups for comparison of M.tb versus BCG under 7H9 culture (shorten as out), M.tb in (intracellular) versus M.tb out, BCG in versus BCG out and M.tb in versus BCG in. Between M.tb in versus BCG in, a total of 211 differentially expressed proteins were found. Eight proteins like ESAT-6 distributed in six RDs and some known proteins related to virulence. Besides, five uncharacterized proteins were differentially expressed. Further analysis revealed enriched pathways were associated with glyoxylate and dicarboxylate metabolism pathways. In M.tb out versus BCG out, a total of 144 differential proteins were identified and mainly involved in metabolism pathways. Then, 121 differential proteins in the group of M.tb in versus M.tb out were enriched in ribosome and oxidative phosphorylation related to adaptation to the host environment. The group of BCG in versus BCG out shared the same trend of different pathways to the M.tb in versus M.tb out. Finally, 42 proteins were identified to be up-regulated only in intracellular M.tb including eight RD proteins, whereas 22 up-regulated uniquely in intracellular BCG. Besides, only two proteins (Pks13 and Rv1405c) were commonly up-regulated in intracellular M.tb and BCG. Further, some unknown proteins were uniquely up-regulated in the intracellular M.tb and BCG. These findings provide valuable data for further exploration of molecular mechanism for M.tb virulence and BCG immune response.
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Affiliation(s)
- Han Liu
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Li Su
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Tingting Zhu
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xiaojie Zhu
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yifan Zhu
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yonchong Peng
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Kailun Zhang
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Longwei Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Changmin Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,National Animal Tuberculosis Para-Reference Laboratory (Wuhan) of Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, China
| | - Huanchun Chen
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,National Animal Tuberculosis Para-Reference Laboratory (Wuhan) of Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, China
| | - Yingyu Chen
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,National Animal Tuberculosis Para-Reference Laboratory (Wuhan) of Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, China
| | - Aizhen Guo
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,National Animal Tuberculosis Para-Reference Laboratory (Wuhan) of Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, China.,Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural University, Wuhan, China
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