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Liu Y, Li H, Dai D, He J, Liang Z. Gene Regulatory Mechanism of Mycobacterium Tuberculosis during Dormancy. Curr Issues Mol Biol 2024; 46:5825-5844. [PMID: 38921019 PMCID: PMC11203133 DOI: 10.3390/cimb46060348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/27/2024] Open
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb) complex, is a zoonotic disease that remains one of the leading causes of death worldwide. Latent tuberculosis infection reactivation is a challenging obstacle to eradicating TB globally. Understanding the gene regulatory network of Mtb during dormancy is important. This review discusses up-to-date information about TB gene regulatory networks during dormancy, focusing on the regulation of lipid and energy metabolism, dormancy survival regulator (DosR), White B-like (Wbl) family, Toxin-Antitoxin (TA) systems, sigma factors, and MprAB. We outline the progress in vaccine and drug development associated with Mtb dormancy.
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Affiliation(s)
- Yiduo Liu
- College of Animal Science and Technology, Guangxi University, No. 100 University West Road, Nanning 530004, China (D.D.)
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Han Li
- College of Animal Science and Technology, Guangxi University, No. 100 University West Road, Nanning 530004, China (D.D.)
| | - Dejia Dai
- College of Animal Science and Technology, Guangxi University, No. 100 University West Road, Nanning 530004, China (D.D.)
| | - Jiakang He
- College of Animal Science and Technology, Guangxi University, No. 100 University West Road, Nanning 530004, China (D.D.)
| | - Zhengmin Liang
- College of Animal Science and Technology, Guangxi University, No. 100 University West Road, Nanning 530004, China (D.D.)
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Liu B, Su P, Hu P, Yan M, Li W, Yi S, Chen Z, Zhang X, Guo J, Wan X, Wang J, Gong D, Bai H, Wan K, Liu H, Li G, Tan Y. Prevalence, Transmission and Genetic Diversity of Pyrazinamide Resistance Among Multidrug-Resistant Mycobacterium tuberculosis Isolates in Hunan, China. Infect Drug Resist 2024; 17:403-416. [PMID: 38328339 PMCID: PMC10849141 DOI: 10.2147/idr.s436161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/15/2024] [Indexed: 02/09/2024] Open
Abstract
Background China is a country with a burden of high rates of both TB and multidrug-resistant TB (MDR-TB). However, published data on pyrazinamide (PZA) resistance are still limited in Hunan province, China. This study investigated the prevalence, transmission, and genetic diversity of PZA resistance among multidrug-resistant Mycobacterium tuberculosis isolates in Hunan province. Methods Drug susceptibility testing (DST) with the Bactec MGIT 960 PZA kit and pyrazinamidase (PZase) testing were conducted on all 298 MDR clinical isolates. Moreover, 24-locus MIRU-VNTR and DNA sequencing of pncA, rpsA, and panD genes were conducted on 180 PZA-resistant (PZA-R) isolates. Results The prevalence of PZA resistance among MDR-TB strains reached 60.4%. Newly diagnosed PZA-R TB patients and clustered isolates with identical pncA, rpsA, and panD mutations showed that transmission of PZA-R isolates played a significant role in the formation of PZA-R TB. Ninety-eight mutation patterns were observed in the pncA among 180 PZA-R isolates, and seventy-one (72.4%) were point mutations. Twenty-four of these mutations are new, including 2 base substitutions (V93G and T153S) and 22 nucleotide deletions or insertions. The W119C was found in PZA-S isolates, on the other hand, F94L and V155A mutations were found in both PZA resistant and susceptible isolates with positive PZase activity, indicating that they were not associated with PZA resistance. This is not entirely in line with the WHO catalogue. Ten novel rpsA mutations were found in 10 PZA-R isolates, which all combined with mutations in pncA. Thus, it is unpredictable whether these mutations in rpsA can impact PZA resistance. No panD mutation was found in all PZA-R isolates. Conclusion DNA sequencing of pncA and PZase activity testing have great potential in predicting PZA resistance.
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Affiliation(s)
- Binbin Liu
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Pan Su
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Peilei Hu
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Mi Yan
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Wenbin Li
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Songlin Yi
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Zhenhua Chen
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Xiaoping Zhang
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Jingwei Guo
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Xiaojie Wan
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Jue Wang
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Daofang Gong
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Hua Bai
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
| | - Kanglin Wan
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Haican Liu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Guilian Li
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yunhong Tan
- Clinical Laboratory, Hunan Chest Hospital, Changsha, People’s Republic of China
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Balay G, Abdella K, Kebede W, Tadesse M, Bonsa Z, Mekonnen M, Amare M, Abebe G. Resistance to pyrazinamide in Mycobacterium tuberculosis complex isolates from previously treated tuberculosis cases in Southwestern Oromia, Ethiopia. J Clin Tuberc Other Mycobact Dis 2024; 34:100411. [PMID: 38222863 PMCID: PMC10787229 DOI: 10.1016/j.jctube.2023.100411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024] Open
Abstract
Objective Pyrazinamide (PZA) susceptibility testing is important to develop evidence-based algorithms for case management. We aimed to assess the prevalence of PZA-resistance and its impact on treatment outcomes in previously treated tuberculosis (TB) cases in southwestern Oromia, Ethiopia. Methods A Phenotypic Drug Susceptibility Testing (DST) of PZA with BACTEC MGIT 960 was conducted at the Mycobacteriology Research Center of Jimma University (MRC-JU) from June to November 2021 on sixty-six Mycobacterium tuberculosis complex (MTBC) isolates from previously treated TB cases. SPSS software package version 21 was used. The differences in the proportion of PZA resistance between the groups were compared using the chi squared test. Logistic regression was used to identify the association between PZA resistance and treatment outcomes. Results Among 66 MTBC isolates (49 rifampicin-resistant and 17 rifampicin-sensitive) included in this study, 31.8 % were resistant to PZA. The proportion of PZA resistance was almost three times higher in previously treated TB cases with rifampicin resistance than in rifampicin-sensitive patients (38.8 % vs. 11.8 %, p = 0.039). An unfavorable treatment outcome was documented for 23 % (15/65) of the participants. Patients with PZA resistance were almost four times more likely to have an unfavorable treatment outcome than patients with PZA sensitive (aOR 4.2, 95 % CI: 1.13-15.3). Conclusions The prevalence of PZA resistance was high compared to the pooled PZA resistance estimated worldwide. The majority of TB cases with PZA resistance had an unfavorable treatment outcome. PZA susceptibility testing should be included in the multidrug-resistant TB diagnostic algorithm to improve management of these patients.
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Affiliation(s)
- Getu Balay
- Mycobacteriology Research Center, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Kedir Abdella
- School of Medical Laboratory Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Wakjira Kebede
- Mycobacteriology Research Center, Institute of Health, Jimma University, Jimma, Ethiopia
- School of Medical Laboratory Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Mulualem Tadesse
- Mycobacteriology Research Center, Institute of Health, Jimma University, Jimma, Ethiopia
- School of Medical Laboratory Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Zegeye Bonsa
- Mycobacteriology Research Center, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Mekidim Mekonnen
- School of Medical Laboratory Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Misikir Amare
- Ethiopian Public Health Institute, National Tuberculosis Reference Laboratory, Addis Ababa, Ethiopia
| | - Gemeda Abebe
- Mycobacteriology Research Center, Institute of Health, Jimma University, Jimma, Ethiopia
- School of Medical Laboratory Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
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Wang Z, Tang Z, Heidari H, Molaeipour L, Ghanavati R, Kazemian H, Koohsar F, Kouhsari E. Global status of phenotypic pyrazinamide resistance in Mycobacterium tuberculosis clinical isolates: an updated systematic review and meta-analysis. J Chemother 2023; 35:583-595. [PMID: 37211822 DOI: 10.1080/1120009x.2023.2214473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/01/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023]
Abstract
Pyrazinamide (PZA) is an essential first-line tuberculosis drug for its unique mechanism of action active against multidrug-resistant-TB (MDR-TB). Thus, the aim of updated meta-analysis was to estimate the PZA weighted pooled resistance (WPR) rate in M. tuberculosis isolates based on publication date and WHO regions. We systematically searched the related reports in PubMed, Scopus, and Embase (from January 2015 to July 2022). Statistical analyses were performed using STATA software. The 115 final reports in the analysis investigated phenotypic PZA resistance data. The WPR of PZA was 57% (95% CI 48-65%) in MDR-TB cases. According to the WHO regions, the higher WPRs of PZA were reported in the Western Pacific (32%; 95% CI 18-46%), South East Asian region (37%; 95% CI 31-43%), and the Eastern Mediterranean (78%; 95% CI 54-95%) among any-TB patients, high risk of MDR-TB patients, and MDR-TB patients, respectively. A negligible increase in the rate of PZA resistance were showed in MDR-TB cases (55% to 58%). The rate of PZA resistance has been rising in recent years among MDR-TB cases, underlines the essential for both standard and novel drug regimens development.
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Affiliation(s)
- Zheming Wang
- Department of Pharmacy, Shaoxing People's Hospital, Shaoxing, China
| | - Zhihua Tang
- Department of Pharmacy, Shaoxing People's Hospital, Shaoxing, China
| | - Hamid Heidari
- Department of Microbiology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Leila Molaeipour
- Department of Epidemiology, School of Public Health, University of Medical Sciences, Tehran, Iran
| | | | - Hossein Kazemian
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Faramarz Koohsar
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ebrahim Kouhsari
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Department of Laboratory Sciences, Faculty of Paramedicine, Golestan University of Medical Sciences, Gorgan, Iran
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