1
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Gao F, Zhao Y, Zhang Y, Gu Y, Pei C, Li C, Kong X. CcPTGS2a-like gene-mediated NF-κB/ERK signaling regulation in the common carp (Cyprinus carpio). FISH & SHELLFISH IMMUNOLOGY 2024; 152:109783. [PMID: 39032705 DOI: 10.1016/j.fsi.2024.109783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/11/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Prostaglandin-endoperoxide synthase 2 (PTGS2), a common biological macromolecule, is pivotal for innate immunity and pathogen recognition. In this study, we identified and characterized a CcPTGS2a-like gene in the common carp (Cyprinus carpio) with an open reading frame (ORF) of 1821 bp and epidermal growth factor and peroxidase domains. Our multiple sequence analysis revealed high homology between the amino acid sequence of CcPTGS2a-like and those of its homologs in other fish. CcPTGS2a-like mRNA and protein expressions were significantly upregulated in the spleen, head kidney, liver, and gill tissues upon exposure to Aeromonas hydrophila stimulation. CcPTGS2a-like protein recognized the conserved bacterial surface components and exhibited detectable bacterial binding activity. CcPTGS2a-like overexpression before exposure to A. hydrophila notably enhanced the survival rate of common carp, concomitant with decreased bacterial burden. The NF-κB/ERK signaling pathway initiated the immune response in common carp upon infection with A. hydrophila. CcPTGS2a-like overexpression or interference in the head kidney and Epithelioma papulosum cyprinid cells could modulate the p-NF-κB (p-p-65), p-IκBα, and p-ERK1/2 levels as well as the IL-1β and IL-6 mRNA expression. These results indicated potential CcPTGS2a-like involvement in the immune response of the common carp to bacterial infections through the NF-κB/ERK signaling pathway.
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Affiliation(s)
- Feng Gao
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Yanjing Zhao
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Yunli Zhang
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Yanlong Gu
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Chao Pei
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Chen Li
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Xianghui Kong
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China.
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2
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Kushawaha AK, Jaiswal AK, Gupta J, Katiyar S, Ansari A, Bhatt H, Sharma SK, Choudhury AD, Bhatta RS, Singh BN, Sashidhara KV. Antitubercular evaluation of dihydropyridine-triazole conjugates: design, synthesis, in vitro screening, SAR and in silico ADME predictions. RSC Med Chem 2024; 15:2867-2881. [PMID: 39149103 PMCID: PMC11324066 DOI: 10.1039/d4md00377b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 07/02/2024] [Indexed: 08/17/2024] Open
Abstract
This study investigates the potential of click chemistry for the development of novel anti-tuberculosis agents. A targeted library of 1,4-dihydropyridine-1,2,3-triazole conjugates was synthesized and evaluated for their in vitro activity against Mycobacterium tuberculosis H37Ra using the resazurin microtiter assay (REMA). Among the synthesized derivatives, compounds J10, J11, J14, J22 and J23 demonstrated significant antimycobacterial activity. These compounds exhibited low MIC values ranging from 6.24 to 6.64 μg mL-1, highlighting their promising potential as lead compounds for further developing novel tuberculosis therapeutics. In addition to the promising in vitro activity, structure-activity relationship (SAR) analysis revealed that electron-withdrawing groups on the aryl-substituted ring of the dihydropyridines (J10-J24), a triazole with an unsubstituted aryl ring or with electron-donating groups (methyl or methoxy), and a geminal dimethyl group are essential structural features for the observed antitubercular activity. Furthermore, in silico ADME (absorption, distribution, metabolism, and excretion) parameters and pharmacokinetic studies supported the potential of these conjugates for oral bioavailability. These findings collectively highlight the 1,4-dihydropyridine-1,2,3-triazole scaffold as a promising platform for developing novel orally active anti-tuberculosis drugs.
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Affiliation(s)
- Ajay Kishor Kushawaha
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
| | - Arvind Kumar Jaiswal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
| | - Jay Gupta
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
| | - Sarita Katiyar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 U.P India
| | - Alisha Ansari
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 U.P India
| | - Hemlata Bhatt
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 U.P India
| | - Sandeep K Sharma
- Molecular Microbiology & Immunology (MMI) Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
| | - Abhijit Deb Choudhury
- Pharmaceutics and Pharmacokinetics Division, CSIR- Central Drug Research Institute Lucknow India
| | - Rabi Sankar Bhatta
- Pharmaceutics and Pharmacokinetics Division, CSIR- Central Drug Research Institute Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 U.P India
| | - Bhupendra N Singh
- Molecular Microbiology & Immunology (MMI) Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 U.P India
| | - Koneni V Sashidhara
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute BS 10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 India
- Sophisticated Analytical Instrument Facility & Research, CSIR-Central Drug Research Institute BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road Lucknow 226031 U.P India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 U.P India
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3
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Sabt A, Abdulla MH, Ebaid MS, Pawełczyk J, Abd El Salam HA, Son NT, Ha NX, Vaali Mohammed MA, Traiki T, Elsawi AE, Dziadek B, Dziadek J, Eldehna WM. Identification of 2-( N-aryl-1,2,3-triazol-4-yl) quinoline derivatives as antitubercular agents endowed with InhA inhibitory activity. Front Chem 2024; 12:1424017. [PMID: 39170867 PMCID: PMC11337105 DOI: 10.3389/fchem.2024.1424017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 06/12/2024] [Indexed: 08/23/2024] Open
Abstract
The spread of drug-resistant tuberculosis strains has become a significant economic burden globally. To tackle this challenge, there is a need to develop new drugs that target specific mycobacterial enzymes. Among these enzymes, InhA, which is crucial for the survival of Mycobacterium tuberculosis, is a key target for drug development. Herein, 24 compounds were synthesized by merging 4-carboxyquinoline with triazole motifs. These molecules were then tested for their effectiveness against different strains of tuberculosis, including M. bovis BCG, M. tuberculosis, and M. abscessus. Additionally, their ability to inhibit the InhA enzyme was also evaluated. Several molecules showed potential as inhibitors of M. tuberculosis. Compound 5n displayed the highest efficacy with a MIC value of 12.5 μg/mL. Compounds 5g, 5i, and 5n exhibited inhibitory effects on InhA. Notably, 5n showed significant activity compared to the reference drug Isoniazid. Molecular docking analysis revealed interactions between these molecules and their target enzyme. Additionally, the molecular dynamic simulations confirmed the stability of the complexes formed by quinoline-triazole conjugate 5n with the InhA. Finally, 5n underwent in silico analysis to predict its ADME characteristics. These findings provide promising insights for developing novel small compounds that are safe and effective for the global fight against tuberculosis.
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Affiliation(s)
- Ahmed Sabt
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Center, Dokki, Egypt
| | - Maha-Hamadien Abdulla
- Colorectal Research Chair, Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Manal S. Ebaid
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Center, Dokki, Egypt
- Department of Chemistry, College of Science, Northern Border University, Arar, Saudi Arabia
| | - Jakub Pawełczyk
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland
| | | | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Xuan Ha
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Mansoor-Ali Vaali Mohammed
- Colorectal Research Chair, Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Thamer Traiki
- Colorectal Research Chair, Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed E. Elsawi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Bozena Dziadek
- Department of Molecular Microbiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Jaroslaw Dziadek
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland
| | - Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
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4
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Raman APS, Aslam M, Awasthi A, Ansari A, Jain P, Lal K, Bahadur I, Singh P, Kumari K. An updated review on 1,2,3-/1,2,4-triazoles: synthesis and diverse range of biological potential. Mol Divers 2024:10.1007/s11030-024-10858-0. [PMID: 39066993 DOI: 10.1007/s11030-024-10858-0] [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: 01/09/2024] [Accepted: 03/22/2024] [Indexed: 07/30/2024]
Abstract
The synthesis of triazoles has attracted a lot of interest in the field of organic chemistry because of its versatile chemical characteristics and possible biological uses. This review offers an extensive overview of the different pathways used in the production of triazoles. A detailed analysis of recent research indicates that triazole compounds have a potential range of pharmacological activities, including the ability to inhibit enzymes, and have antibacterial, anticancer, and antifungal activities. The integration of computational and experimental methods provides a thorough understanding of the structure-activity connection, promoting sensible drug design and optimization. By including triazoles as essential components in drug discovery, researchers can further explore and innovate in the synthesis, biological assessment, and computational studies of triazoles as drugs, exploring the potential therapeutic significance of triazoles.
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Affiliation(s)
- Anirudh Pratap Singh Raman
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, Dhaula Kuan, New Delhi, India
- Department of Chemistry, SRM Institute of Science & Technology, Delhi-NCR Campus, Ghaziabad, Modinagar, India
| | - Mohd Aslam
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, Dhaula Kuan, New Delhi, India
- Department of Chemistry, SRM Institute of Science & Technology, Delhi-NCR Campus, Ghaziabad, Modinagar, India
| | - Amardeep Awasthi
- Department of Chemistry, North western University, Evanston, IL, USA
| | - Anas Ansari
- Department of Chemistry, North western University, Evanston, IL, USA
| | - Pallavi Jain
- Department of Chemistry, SRM Institute of Science & Technology, Delhi-NCR Campus, Ghaziabad, Modinagar, India
| | - Kashmiri Lal
- Department of Chemistry, Guru Jambheshwar of Science and Technology, Hisar, India
| | - Indra Bahadur
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, Mafikeng Campus, Mmabatho, 2745, South Africa
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, Dhaula Kuan, New Delhi, India.
| | - Kamlesh Kumari
- Department of Zoology, University of Delhi, Delhi, India.
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5
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Gutka HJ, Bondoc JMG, Patwell R, Khan S, Grzelak EM, Goswami R, Voskuil MI, Movahedzadeh F. Rv0100: An essential acyl carrier protein from M. tuberculosis important in dormancy. PLoS One 2024; 19:e0304876. [PMID: 38848336 PMCID: PMC11161019 DOI: 10.1371/journal.pone.0304876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 05/20/2024] [Indexed: 06/09/2024] Open
Abstract
We have identified an acyl-carrier protein, Rv0100, that is up-regulated in a dormancy model. This protein plays a critical role in the fatty acid biosynthesis pathway, which is important for energy storage and cell wall synthesis in Mycobacterium tuberculosis (MTB). Knocking out the Rv0100 gene resulted in a significant reduction of growth compared to wild-type MTB in the Wayne model of non-replicating persistence. We have also shown that Rv0100 is essential for the growth and survival of this pathogen during infection in mice and a macrophage model. Furthermore, knocking out Rv0100 disrupted the synthesis of phthiocerol dimycocerosates, the virulence-enhancing lipids produced by MTB and Mycobacterium bovis. We hypothesize that this essential gene contributes to MTB virulence in the state of latent infection. Therefore, inhibitors targeting this gene could prove to be potent antibacterial agents against this pathogen.
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Affiliation(s)
- Hiten J. Gutka
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Jasper Marc G. Bondoc
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Ryan Patwell
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Neuropeptide Research, Central Institute for Mental Health, Mannheim, Germany
| | - Shahebraj Khan
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Edyta M. Grzelak
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Rajendra Goswami
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Martin I. Voskuil
- Department of Microbiology, School of Medicine, University of Colorado Denver, Aurora, Colorado, United States of America
| | - Farahnaz Movahedzadeh
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, United States of America
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6
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Veerapandian R, Gadad SS, Jagannath C, Dhandayuthapani S. Live Attenuated Vaccines against Tuberculosis: Targeting the Disruption of Genes Encoding the Secretory Proteins of Mycobacteria. Vaccines (Basel) 2024; 12:530. [PMID: 38793781 PMCID: PMC11126151 DOI: 10.3390/vaccines12050530] [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: 04/08/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Tuberculosis (TB), a chronic infectious disease affecting humans, causes over 1.3 million deaths per year throughout the world. The current preventive vaccine BCG provides protection against childhood TB, but it fails to protect against pulmonary TB. Multiple candidates have been evaluated to either replace or boost the efficacy of the BCG vaccine, including subunit protein, DNA, virus vector-based vaccines, etc., most of which provide only short-term immunity. Several live attenuated vaccines derived from Mycobacterium tuberculosis (Mtb) and BCG have also been developed to induce long-term immunity. Since Mtb mediates its virulence through multiple secreted proteins, these proteins have been targeted to produce attenuated but immunogenic vaccines. In this review, we discuss the characteristics and prospects of live attenuated vaccines generated by targeting the disruption of the genes encoding secretory mycobacterial proteins.
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Affiliation(s)
- Raja Veerapandian
- Center of Emphasis in Infectious Diseases, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX 79905, USA
| | - Shrikanth S. Gadad
- Center of Emphasis in Cancer, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX 79905, USA
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Houston Methodist Research Institute & Weill Cornell Medical College, Houston, TX 77030, USA
| | - Subramanian Dhandayuthapani
- Center of Emphasis in Infectious Diseases, Department of Molecular and Translational Medicine, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX 79905, USA
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7
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Sun H, Bai X, Zhang Y, Gao Y, Dai J, Xing P, Zhu J, Liu R, Wang Z, Li X. Small Molecule SHP2 Inhibitor LXQ-217 Affects Lung Cancer Cell Proliferation in Vitro and in Vivo. Chem Biodivers 2024; 21:e202301610. [PMID: 38379194 DOI: 10.1002/cbdv.202301610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND SHP2 is highly expressed in a variety of cancer and has emerged as a potential target for cancer therapeutic agents. The identification of uncharged pTyr mimics is an important direction for the development of SHP2 orthosteric inhibitors. METHODS Surface plasmon resonance analysis and cellular thermal shift assay were employed to verify the direct binding of LXQ-217 to SHP2. The inhibitory effect of LXQ-217 was characterized by linear Weaver-Burke enzyme kinetic analysis and BIOVIA Discovery Studio. The inhibition of tumor cell proliferation by LXQ-217 was characterized by cell viability assay, colony formation assays and hoechst 33258 staining. The inhibition of lung cancer proliferation in vivo was studied in nude mice after oral administration of LXQ-217. RESULTS An electroneutral bromophenol derivative, LXQ-217, was identified as a competitive SHP2 inhibitor. LXQ-217 induced apoptosis and inhibited growth of human pulmonary epithelial cells by affecting the RAS-ERK and PI3 K-AKT signaling pathways. Long-term oral administration of LXQ-217 significantly inhibited the proliferation ability of lung cancer cells in nude mice. Moreover, mice administered LXQ-217 orally at high doses exhibited no mortality or significant changes in vital signs. CONCLUSIONS Our findings on the uncharged orthosteric inhibitor provide a foundation for further development of a safe and effective anti-lung cancer drug.
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Affiliation(s)
- Hao Sun
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Xiaoyi Bai
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Yiting Zhang
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Yanan Gao
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Jiajia Dai
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, 266071, Qingdao, Shandong, China
| | - Pan Xing
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Jiqiang Zhu
- Shandong Linghai Biotechnology Co., Ltd., 250299, Jinan, Shandong, P. R. China
| | - Ruihua Liu
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Zemin Wang
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
| | - Xiangqian Li
- State Key Laboratory of Microbial Technology, Shandong University, 266237, Qingdao, Shandong, P. R. China
- Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology, 266237, Qingdao, Shandong, P. R. China
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8
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Rodríguez-Fernández P, Botella L, Cavet JS, Domínguez J, Gutierrez MG, Suckling CJ, Scott FJ, Tabernero L. MptpB Inhibitor Improves the Action of Antibiotics against Mycobacterium tuberculosis and Nontuberculous Mycobacterium avium Infections. ACS Infect Dis 2024; 10:170-183. [PMID: 38085851 PMCID: PMC10788870 DOI: 10.1021/acsinfecdis.3c00446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 01/13/2024]
Abstract
Treatment of Mycobacterium tuberculosis and Mycobacterium avium infections requires multiple drugs for long time periods. Mycobacterium protein-tyrosine-phosphatase B (MptpB) is a key M. tuberculosis virulence factor that subverts host antimicrobial activity to promote intracellular survival. Inhibition of MptpB reduces the infection burden in vivo and offers new opportunities to improve current treatments. Here, we demonstrate that M. avium produces an MptpB orthologue and that the MptpB inhibitor C13 reduces the M. avium infection burden in macrophages. Combining C13 with the antibiotics rifampicin or bedaquiline showed an additive effect, reducing intracellular infection of both M. tuberculosis and M. avium by 50%, compared to monotreatment with antibiotics alone. This additive effect was not observed with pretomanid. Combining C13 with the minor groove-binding compounds S-MGB-362 and S-MGB-363 also reduced the M. tuberculosis intracellular burden. Similar additive effects of C13 and antibiotics were confirmed in vivo using Galleria mellonella infections. We demonstrate that the reduced mycobacterial burden in macrophages observed with C13 treatments is due to the increased trafficking to lysosomes.
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Affiliation(s)
- Pablo Rodríguez-Fernández
- School
of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health
Science Centre, M13 9PT Manchester, U.K.
| | - Laure Botella
- Host
Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, NW1 1AT London, U.K.
| | - Jennifer S. Cavet
- School
of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health
Science Centre, M13 9PT Manchester, U.K.
- Lydia
Becker Institute for Immunology and Inflammation, University of Manchester, M13 9PT Manchester, U.K.
| | - Jose Domínguez
- Institut
d’Investigació Germans Trias i Pujol, CIBER Enfermedades
Respiratorias (CIBERES), Universitat Autònoma
de Barcelona, 08916 Barcelona, Spain
| | - Maximiliano G. Gutierrez
- Host
Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, NW1 1AT London, U.K.
| | - Colin J. Suckling
- Department
of Pure and Applied Chemistry, University
of Strathclyde, 295 Cathedral Street, G1 1XL Glasgow, U.K.
| | - Fraser J. Scott
- Department
of Pure and Applied Chemistry, University
of Strathclyde, 295 Cathedral Street, G1 1XL Glasgow, U.K.
| | - Lydia Tabernero
- School
of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health
Science Centre, M13 9PT Manchester, U.K.
- Lydia
Becker Institute for Immunology and Inflammation, University of Manchester, M13 9PT Manchester, U.K.
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9
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Sulyman AO, Fulcher J, Crossley S, Fatokun AA, Olorunniji FJ. Shikonin and Juglone Inhibit Mycobacterium tuberculosis Low-Molecular-Weight Protein Tyrosine Phosphatase a (Mt-PTPa). BIOTECH 2023; 12:59. [PMID: 37754203 PMCID: PMC10526854 DOI: 10.3390/biotech12030059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 08/21/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023] Open
Abstract
Low-molecular-weight protein tyrosine phosphatases (LMW-PTPs) are involved in promoting the intracellular survival of Mycobacterium tuberculosis (Mtb), the causative organism of tuberculosis. These PTPs directly alter host signalling pathways to evade the hostile environment of macrophages and avoid host clearance. Among these, protein tyrosine phosphatase A (Mt-PTPa) is implicated in phagosome acidification failure, thereby inhibiting phagosome maturation to promote Mycobacterium tuberculosis (Mtb) survival. In this study, we explored Mt-PTPa as a potential drug target for treating Mtb. We started by screening a library of 502 pure natural compounds against the activities of Mt-PTPa in vitro, with a threshold of 50% inhibition of activity via a <500 µM concentration of the candidate drugs. The initial screen identified epigallocatechin, myricetin, rosmarinic acid, and shikonin as hits. Among these, the naphthoquinone, shikonin (5, 8-dihydroxy-2-[(1R)-1-hydroxy-4-methyl-3-pentenyl]-1,4-naphthoquinone), showed the strongest inhibition (IC50 33 µM). Further tests showed that juglone (5-hydroxy-1,4-naphthalenedione), another naphthoquinone, displayed similar potent inhibition of Mt-PTPa to shikonin. Kinetic analysis of the inhibition patterns suggests a non-competitive inhibition mechanism for both compounds, with inhibitor constants (Ki) of 8.5 µM and 12.5 µM for shikonin and juglone, respectively. Our findings are consistent with earlier studies suggesting that Mt-PTPa is susceptible to specific allosteric modulation via a non-competitive or mixed inhibition mechanism.
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Affiliation(s)
- Abdulhakeem O. Sulyman
- Department of Biochemistry, Faculty of Pure and Applied Sciences, Kwara State University, Malete 241103, Nigeria
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Jessie Fulcher
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Samuel Crossley
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Amos A. Fatokun
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Femi J. Olorunniji
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
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10
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Chatterjee A. Mycobacterium tuberculosis and its secreted tyrosine phosphatases. Biochimie 2023; 212:41-47. [PMID: 37059349 DOI: 10.1016/j.biochi.2023.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 04/16/2023]
Abstract
Tuberculosis is one of the most common infectious diseases and has been a major burden for a long time now. Increasing drug resistance in TB is slowing down the process of disease treatment. Mycobacterium tuberculosis, the causative agent of TB is known to have a cascade of virulence factors to fight with host's immune system. The phosphatases (PTPs) of Mtb plays a critical role as these are secretory in nature and help the survival of bacteria in host. Researchers have been trying to synthesize inhibitors against a lot of virulence factors of Mtb but recently the phosphatases have gained a lot of interest due to their secretory nature. This review gives a concise overview of virulence factors of Mtb with emphasis on mPTPs. Here we discuss the current scenario of drug development against mPTPs.
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Affiliation(s)
- Aditi Chatterjee
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA.
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11
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Kumar G, C A. Natural products and their analogues acting against Mycobacterium tuberculosis: A recent update. Drug Dev Res 2023; 84:779-804. [PMID: 37086027 DOI: 10.1002/ddr.22063] [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: 11/25/2022] [Revised: 02/28/2023] [Accepted: 04/01/2023] [Indexed: 04/23/2023]
Abstract
Tuberculosis (TB) remains one of the deadliest infectious diseases caused by Mycobacterium tuberculosis (M.tb). It is responsible for significant causes of mortality and morbidity worldwide. M.tb possesses robust defense mechanisms against most antibiotic drugs and host responses due to their complex cell membranes with unique lipid molecules. Thus, the efficacy of existing front-line drugs is diminishing, and new and recurring cases of TB arising from multidrug-resistant M.tb are increasing. TB begs the scientific community to explore novel therapeutic avenues. A precise knowledge of the compounds with their mode of action could aid in developing new anti-TB agents that can kill latent and actively multiplying M.tb. This can help in the shortening of the anti-TB regimen and can improve the outcome of treatment strategies. Natural products have contributed several antibiotics for TB treatment. The sources of anti-TB drugs/inhibitors discussed in this work are target-based identification/cell-based and phenotypic screening from natural products. Some of the recently identified natural products derived leads have reached clinical stages of TB drug development, which include rifapentine, CPZEN-45, spectinamide-1599 and 1810. We believe these anti-TB agents could emerge as superior therapeutic compounds to treat TB over known Food and Drug Administration drugs.
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Affiliation(s)
- Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Telangana, India
| | - Amrutha C
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Telangana, India
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12
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Matta R, Pochampally J, Dhoddi BN, Bhookya S, Bitla S, Akkiraju AG. Synthesis, antimicrobial and antioxidant activity of triazole, pyrazole containing thiazole derivatives and molecular docking studies on COVID-19. BMC Chem 2023; 17:61. [PMID: 37330518 DOI: 10.1186/s13065-023-00965-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/26/2023] [Indexed: 06/19/2023] Open
Abstract
New series of biologically active triazole and pyrazole compounds containing 2, 4-disubstituted thiazole analogues (12a-l) were synthesized from p-hydroxy benzaldehyde and phenyl hydrazine in excellent yields and purity. All the synthesized compounds were unambiguously identified based on their spectral data analyses (IR, 1H-NMR, 13C-NMR spectra, and HRMS). The final derivatives were evaluated for their in vitro anti-microbial activity after thorough purification. Among all the tested compounds, the compound 12e, 12f and 12 k possess the highest growth inhibitory activity at MIC values of 4.8, 5.1 and 4.0 μg/ml respectively. The antioxidant properties of these compounds demonstrated and revealed remarkable activity compared to the standard antioxidant by using the DPPH free radical-scavenging assay. Moreover, molecular docking studies to evaluate the probable interactions with the catalytic domain of the gram-positive S. aureus topoisomerase IV enzyme may provide new insights for developing these new hybrids as potential antimicrobial agents. The binding affinities of compounds 12a-l were ranging from - 10.0 to - 11.0 kcal/mol with topoisomerase IV enzyme and with COVID-19 main protease binding affinities are ranging from - 8.2 to - 9.3 kcal/mol. These docking studies reveal that the compounds 12a-l could be the best inhibitors for the novel SARS Cov-2 virus and have more future in discovery of potent drug candidates.
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Affiliation(s)
- Raghavender Matta
- Department of Chemistry, Osmania University, Hyderabad, 500007, India
| | | | | | - Shankar Bhookya
- Department of Chemistry, Sreenidhi University, Hyderabad, 501301, India
| | - Sampath Bitla
- Department of Chemistry, Osmania University, Hyderabad, 500007, India
| | - Anjini Gayatri Akkiraju
- Molecular Medicine Lab, Department of Genetics & Biotechnology, Osmania University, Hyderabad, 500007, India
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13
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Cheng S, Zou Y, Chen X, Chen J, Wang B, Tian J, Ye F, Lu Y, Huang H, Lu Y, Zhang D. Design, synthesis and biological evaluation of 3-substituted-2-thioxothiazolidin-4-one (rhodanine) derivatives as antitubercular agents against Mycobacterium tuberculosis protein tyrosine phosphatase B. Eur J Med Chem 2023; 258:115571. [PMID: 37348296 DOI: 10.1016/j.ejmech.2023.115571] [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: 05/06/2023] [Revised: 06/06/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
Mycobacterium tuberculosis infections still pose a serious threat to human health. Combination therapies are effective medical solutions to the problem. Mycobacterium tuberculosis is an intracellular pathogen that mainly depends on a virulence factor (Mycobacterium tuberculosis protein tyrosine phosphatase B, MptpB) for its survival in the host. Therefore, MptpB inhibitors are potential components of tuberculosis combination treatments. Herein, a new series of MptpB inhibitors bearing a rhodanine group were developed using a structure-based strategy based on the virtual screening hit. The new MptpB inhibitors displayed potent MptpB inhibitory activities and great improvements in cell membrane permeability. The optimal compounds reduced the bacterial burden in a dose-dependent manner in a macrophage infection model, especially, a combination of compound 20 and rifampicin led to a bacterial burden reduction of more than 95%, greater than the reductions achieved with compound 20 or rifampicin alone. This research provides new insights into the rational design of new MptpB inhibitors and verifies that the MptpB inhibitor has a promising potential as a component of tuberculosis treatment.
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Affiliation(s)
- Shihao Cheng
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing, 100050, PR China
| | - Yi Zou
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong, 510275, PR China
| | - Xi Chen
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing, 101149, PR China
| | - Jiahao Chen
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong, 510275, PR China
| | - Bin Wang
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing, 101149, PR China
| | - Jinying Tian
- Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing, 100050, PR China
| | - Fei Ye
- Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing, 100050, PR China
| | - Yu Lu
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing, 101149, PR China
| | - Haihong Huang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing, 100050, PR China.
| | - Yongjun Lu
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong, 510275, PR China.
| | - Dongfeng Zhang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing, 100050, PR China.
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14
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Xiao Z, Lin S, She Z, Lu Y, Tan Z, Liu Y. A new anthraquinone from mangrove endophytic fungus Aspergillus sp. 16-5C. Nat Prod Res 2023; 37:1271-1276. [PMID: 34758689 DOI: 10.1080/14786419.2021.2001810] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A new anthraquinone, asperquinone A (1), and four known anthraquinone derivatives 2-5 were isolated from the mangrove endophytic fungus Aspergillus sp. 16-5C. These structures were elucidated by spectroscopic analysis and the absolute configuration of 1 was unambiguously determined by ECD calculation. Compounds 1-5 showed no significant inhibitory effect against Mycobacterium tuberculosis protein tyrosine phosphatase B (MptpB).
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Affiliation(s)
- Ze'en Xiao
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Nanning, P.R. China
| | - Shao'e Lin
- School of Chemistry, Sun Yat-sen University, Guangzhou, P.R. China
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou, P.R. China
| | - Yongjun Lu
- School of Life Science, Sun Yat-sen University, Guangzhou, P.R. China
| | - Zhen Tan
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Nanning, P.R. China
| | - Yonghong Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, P.R. China
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15
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Qiang L, Zhang Y, Lei Z, Lu Z, Tan S, Ge P, Chai Q, Zhao M, Zhang X, Li B, Pang Y, Zhang L, Liu CH, Wang J. A mycobacterial effector promotes ferroptosis-dependent pathogenicity and dissemination. Nat Commun 2023; 14:1430. [PMID: 36932056 PMCID: PMC10023711 DOI: 10.1038/s41467-023-37148-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 03/02/2023] [Indexed: 03/19/2023] Open
Abstract
Ferroptosis is a lipid peroxidation-driven and iron-dependent programmed cell death involved in multiple physical processes and various diseases. Emerging evidence suggests that several pathogens manipulate ferroptosis for their pathogenicity and dissemination, but the underlying molecular mechanisms remain elusive. Here, we identify that protein tyrosine phosphatase A (PtpA), an effector secreted by tuberculosis (TB)-causing pathogen Mycobacterium tuberculosis (Mtb), triggers ferroptosis to promote Mtb pathogenicity and dissemination. Mechanistically, PtpA, through its Cys11 site, interacts with host RanGDP to enter host cell nucleus. Then, the nuclear PtpA enhances asymmetric dimethylation of histone H3 arginine 2 (H3R2me2a) via targeting protein arginine methyltransferase 6 (PRMT6), thus inhibiting glutathione peroxidase 4 (GPX4) expression, eventually inducing ferroptosis to promote Mtb pathogenicity and dissemination. Taken together, our findings provide insights into molecular mechanisms of pathogen-induced ferroptosis, indicating a potential TB treatment via blocking Mtb PtpA-host PRMT6 interface to target GPX4-dependent ferroptosis.
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Affiliation(s)
- Lihua Qiang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Yong Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zehui Lei
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Zhe Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Shasha Tan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Pupu Ge
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Qiyao Chai
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Mengyuan Zhao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Xinwen Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Bingxi Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yu Pang
- Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, 101149, China
| | - Lingqiang Zhang
- State Key Laboratory of Proteomics, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 100850, China.
| | - Cui Hua Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 101408, China.
| | - Jing Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
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16
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He C, Li B, Gong Z, Huang S, Liu X, Wang J, Xie J, Shi T. Polyphosphate kinase 1 is involved in formation, the morphology and ultramicrostructure of biofilm of Mycobacterium smegmatis and its survivability in macrophage. Heliyon 2023; 9:e14513. [PMID: 36967885 PMCID: PMC10034464 DOI: 10.1016/j.heliyon.2023.e14513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
The most unique characteristic of Mycobacterium tuberculosis is persistence in the human host, and the biofilm formation is related to the persistance. Polyphosphate (polyP) kinase 1 (PPK1) is conserved in Mycobacteria and is responsible for polyP synthesis. polyP is a chain molecule linked by high-energy phosphate bonds, which is considered to play a very important role in bacterial persistence. However, the relationship of PPK1 and mycobacterial biofilm formation is still adequately unclear. In current study, ppk1-deficient mutant (MT), ppk1-complemented (CT) and wild-type strains of M. smegmatis mc2 155 were used to investigate the formation, morphology and ultramicrostructure of the biofilm and to analyze the lipid levels and susceptibility to vancomycin antibiotic. And then WT, MT and CT strains were used to infect macrophages and to analyze the expression levels of various inflammatory factors, respectively. We found that PPK1 was required for M. smegmatis polyP production in vivo and polyP deficiency not only attenuated the biofilm formation, but also altered the phenotype and ultramicrostructure of the biofilm and reduced the cell lipid composition (except for C16.1 and C17.1, most of the fatty acid components from C8-C24). Moreover, the ppk1-deficient mutant was also significantly more sensitive to vancomycin which targets the cell wall, and its ability to survive in macrophages was decreased, which was related to the change of the expression level of inflammatory factors in macrophage. This study demonstrates that the PPK1 can affect the biofilm structure through affecting the content of short chain fatty acid and promote intracellular survival of M. smegmatis by altering the expression of inflammatory factors. These findings establish a basis for investigating the role of PPK1 in the persistence of M. tuberculosis, and provide clues for treating latent infection of M. tuberculosis with PPK1 as a potential drug target.
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Affiliation(s)
- Cailin He
- Medical School of Hubei Minzu University, Enshi, 445000, China
| | - Bo Li
- Medical School of Hubei Minzu University, Enshi, 445000, China
| | - Zhen Gong
- Institute of Modern Biopharmaceuticals, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Sheng Huang
- Medical School of Hubei Minzu University, Enshi, 445000, China
- Institute of Selenium Science and Industry of Hubei Minzu University, Enshi, 445000, China
| | - Xu Liu
- Medical School of Hubei Minzu University, Enshi, 445000, China
- Institute of Selenium Science and Industry of Hubei Minzu University, Enshi, 445000, China
| | - Jiajun Wang
- Medical School of Hubei Minzu University, Enshi, 445000, China
| | - Jianping Xie
- Institute of Modern Biopharmaceuticals, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Corresponding author. Institute of Modern Biopharmaceuticals, School of Life Sciences, Southwest University, Chongqing, 400715, China.
| | - Tingyu Shi
- Medical School of Hubei Minzu University, Enshi, 445000, China
- Hubei Key Laboratory of Biological Resources Protection and Utilization, Enshi, 445000, China
- Institute of Selenium Science and Industry of Hubei Minzu University, Enshi, 445000, China
- Corresponding author. Medical School of Hubei Minzu University, Enshi, 445000, China.
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17
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Thanh ND, Hai DS, Huyen LT, Hanh NT, Anh HH, Bich VTN, Hien PTT, Toan VN, Van HTK, Giang NTK. 1H-1,2,3-Triazole-4H-chromene-D-glucose hybrid compounds: Synthesis and inhibitory activity against Mycobacterium tuberculosis protein tyrosine phosphatase B. Arch Pharm (Weinheim) 2023; 356:e2200459. [PMID: 36417559 DOI: 10.1002/ardp.202200459] [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: 09/01/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 11/27/2022]
Abstract
A series of 1H-1,2,3-triazole-4H-chromene-D-glucose hybrid compounds 7a-w were synthesized using click chemistry of 2-amino-7-propargyloxy-4H-chromene-3-carbonitriles 5a-w. CuNPs@montmorillonite was used as a catalyst in the presence of DIPEA as an additive for this chemistry. All synthesized 1H-1,2,3-triazoles were examined for in vitro inhibition against Mycobacterium tuberculosis protein tyrosine phosphatase B (MtbPtpB). Nine 1H-1,2,3-triazoles, including 7c-e, 7h, 7i, and 7r-t, displayed remarkable inhibitory activity against MtbPtpB with IC50 < 10 μM; compound 7t exhibited the most potent inhibition in vitro with an IC50 value of 0.61 μM. Kinetic studies of the three most active compounds, 7c,h,t, showed their competitive inhibition toward the MtbPtpB enzyme. Induced-fit docking and MM-GBSA studies on the enzyme (PDB: 2OZ5) revealed that the most active compound 7t was more effective against MtbPtpB. Residues Arg64, Arg136, Ash165, Arg166, and Arg63 in the binding pocket were identified as potential ligand-binding hot-spot residues for ligand 7t. The binding free energy calculation by the MM-GBSA approach for ligand 7t indicated that Coulomb, lipophilic, and van der Waals energy terms are major contributors to the inhibitor binding. Furthermore, the stability of the ligand-protein complex and the structural insights into the mode of binding were confirmed by 300-ns molecular dynamics simulation of 7t/2OZ5.
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Affiliation(s)
- Nguyen Dinh Thanh
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam
| | - Do Son Hai
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam.,Institute of Science and Technology, Ministry of Public Security of Vietnam, Ha Noi, Vietnam
| | - Le Thi Huyen
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam
| | - Nguyen Thi Hanh
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam
| | - Hoang Huu Anh
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam
| | - Vu Thi Ngoc Bich
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam
| | - Pham Thi Thu Hien
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam
| | - Vu Ngoc Toan
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam.,Institute of New Technology, Military Institute of Science and Technology, Ha Noi, Vietnam
| | - Hoang Thi Kim Van
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam.,Faculty of Chemical Technology, Viet Tri University of Industry, Phu Tho, Vietnam
| | - Nguyen Thi Kim Giang
- Faculty of Chemistry, VNU University of Science (Vietnam National University, Ha Noi), Ha Noi, Vietnam.,Institute of Science and Technology, Ministry of Public Security of Vietnam, Ha Noi, Vietnam
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18
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Qin X, Zhang B, Sun X, Zhang M, Xiao D, Lin S, Liu Z, Cui W, Lin Y. Tetrahedral-Framework Nucleic Acid Loaded with MicroRNA-155 Enhances Immunocompetence in Cyclophosphamide-Induced Immunosuppressed Mice by Modulating Dendritic Cells and Macrophages. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7793-7803. [PMID: 36745737 DOI: 10.1021/acsami.2c20657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Nanomaterials are often used as immunomodulators because they can be tailored by a controllable process. In this work, a complex based on a tetrahedral framework nucleic acid delivery system and MicroRNA-155, known as T-155, is synthesized for the modulation of immunosuppression. In vivo, T-155 ameliorated spleen and thymus damage and hematopoiesis suppression in cyclophosphamide-induced immunosuppressed mice by promoting T-cell proliferation to resist oxidative stress. In vitro, T-155 induced immature dendritic cells (DCs) to differentiate into mature DCs by the ERK1/2 pathway and converted M0 macrophages (Mφ) into the M1 type by the NF-κB pathway to enhance the surveillance capabilities of antigen-presenting cells. The experimental results suggest that T-155 has therapeutic potential as an immunomodulator for immunosuppression.
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Affiliation(s)
- Xin Qin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Bowen Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Xiaoqin Sun
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Mei Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Shiyu Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Zhiqiang Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Weitong Cui
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
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19
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Kushwaha N, Sahu A, Mishra J, Soni A, Dorwal D. An Insight on the Prospect of Quinazoline and Quinazolinone Derivatives as Anti-tubercular Agents. Curr Org Synth 2023; 20:838-869. [PMID: 36927421 DOI: 10.2174/1570179420666230316094435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 01/22/2023] [Accepted: 01/27/2023] [Indexed: 03/18/2023]
Abstract
Multiple potential drugs have been developed based on the heterocyclic molecules for the treatment of different symptoms. Among the existing heterocyclic molecules, quinazoline and quinazolinone derivatives have been found to exhibit extensive pharmacological and biological characteristics. One significant property of these molecules is their potency as anti-tubercular agents. Thus, both quinazoline and quinazolinone derivatives are modified using different functional groups as substituents for investigating their anti-tubercular activities. We present a summary of the reported anti-tubercular drugs, designed using quinazoline and quinazolinone derivatives, in this review.
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Affiliation(s)
| | - Adarsh Sahu
- Department of Pharmaceutical Sciences, Harisingh Gour Vishwavidyalaya, Sagar, MP, India
| | - Jyotika Mishra
- Department of Pharmaceutical Sciences, Harisingh Gour Vishwavidyalaya, Sagar, MP, India
| | - Ankit Soni
- Sri Aurobindo Institute of Pharmacy, Indore, MP, India
| | - Dhawal Dorwal
- Sri Aurobindo Institute of Pharmacy, Indore, MP, India
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20
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Lucas RM, Luo L, Stow JL. ERK1/2 in immune signalling. Biochem Soc Trans 2022; 50:1341-1352. [PMID: 36281999 PMCID: PMC9704528 DOI: 10.1042/bst20220271] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 07/30/2023]
Abstract
Extracellular signal-related kinases 1 and 2 (ERK1/2) are the final components of the mitogen-activated protein kinase (MAPK) phosphorylation cascade, an integral module in a diverse array of signalling pathways for shaping cell behaviour and fate. More recently, studies have shown that ERK1/2 plays an essential role downstream of immune receptors to elicit inflammatory gene expression in response to infection and cell or tissue damage. Much of this work has studied ERK1/2 activation in Toll-like receptor (TLR) pathways, providing mechanistic insights into its recruitment, compartmentalisation and activation in cells of the innate immune system. In this review, we summarise the typical activation of ERK1/2 in growth factor receptor pathways before discussing its known roles in immune cell signalling with a focus downstream of TLRs. We examine emerging research uncovering evidence of dysfunctional ERK1/2 signalling in inflammatory diseases and discuss the potential therapeutic benefit of targeting ERK1/2 pathways in inflammation.
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Affiliation(s)
- Richard M. Lucas
- Institute for Molecular Bioscience (IMB) and Centre for Inflammation and Disease Research, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Lin Luo
- Institute for Molecular Bioscience (IMB) and Centre for Inflammation and Disease Research, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Jennifer L. Stow
- Institute for Molecular Bioscience (IMB) and Centre for Inflammation and Disease Research, The University of Queensland, St Lucia, QLD 4072, Australia
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21
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Chai Q, Yu S, Zhong Y, Lu Z, Qiu C, Yu Y, Zhang X, Zhang Y, Lei Z, Qiang L, Li BX, Pang Y, Qiu XB, Wang J, Liu CH. A bacterial phospholipid phosphatase inhibits host pyroptosis by hijacking ubiquitin. Science 2022; 378:eabq0132. [PMID: 36227980 DOI: 10.1126/science.abq0132] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The inflammasome-mediated cleavage of gasdermin D (GSDMD) causes pyroptosis and inflammatory cytokine release to control pathogen infection, but how pathogens evade this immune response remains largely unexplored. Here we identify the known protein phosphatase PtpB from Mycobacterium tuberculosis as a phospholipid phosphatase inhibiting the host inflammasome-pyroptosis pathway. Mechanistically, PtpB dephosphorylated phosphatidylinositol-4-monophosphate and phosphatidylinositol-(4,5)-bisphosphate in host cell membrane, thus disrupting the membrane localization of the cleaved GSDMD to inhibit cytokine release and pyroptosis of macrophages. Notably, this phosphatase activity requires PtpB binding to ubiquitin. Disrupting phospholipid phosphatase activity or the ubiquitin-interacting motif of PtpB enhanced host GSDMD-dependent immune responses and reduced intracellular pathogen survival. Thus, pathogens inhibit pyroptosis and counteract host immunity by altering host membrane composition.
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Affiliation(s)
- Qiyao Chai
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Shanshan Yu
- Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Yanzhao Zhong
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Zhe Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Changgen Qiu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Yang Yu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xinwen Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Yong Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zehui Lei
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Lihua Qiang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Bing-Xi Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yu Pang
- Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Xiao-Bo Qiu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 211198, China.,Ministry of Education Key Laboratory of Cell Proliferation and Regulation Biology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Jing Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Cui Hua Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China
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22
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Cheng S, Wang Q, Chen X, Chen J, Wang B, Chen D, Shen D, Tian J, Ye F, Lu Y, Huang H, Lu Y, Zhang D. Discovery of biphenyls bearing thiobarbiturate fragment by structure-based strategy as Mycobacterium tuberculosis protein tyrosine phosphatase B inhibitors. Bioorg Med Chem 2022; 73:117006. [PMID: 36150342 DOI: 10.1016/j.bmc.2022.117006] [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: 07/04/2022] [Revised: 08/31/2022] [Accepted: 09/08/2022] [Indexed: 11/25/2022]
Abstract
Mycobacterium tuberculosis protein tyrosine phosphatase B (MptpB) is an important virulence factor that blocks the host immune response and facilitates M. tuberculosis growth in host cells. MptpB inhibitors are potential components of tuberculosis combination treatment. Herein, we present the development of new biphenyls MptpB inhibitors with greatly improved MptpB inhibition based on our reported thiobarbiturate lead 6 by rational design with the structure-based strategy. The eight biphenyls bearing thiobarbiturate fragment target compounds showed more potent MptpB inhibition (IC50: 1.18-14.13 μM) than the lead compound 6. Further molecular docking studies showed that compounds 13, 26, 27 and 28 had multiple interactions with active sites. Among them, compound 13 exhibited dose-dependent increased antituberculosis activity in mouse macrophages. The results displayed that the strategy of modification utilizing biphenyl scaffold was efficient. Our study identifies biphenyls bearing thiobarbiturate fragment as new MptpB inhibitors and verifies the therapeutic potential of antimycobacterial agent targeting MptpB.
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Affiliation(s)
- Shihao Cheng
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, PR China
| | - Qinglin Wang
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong 510275, PR China
| | - Xi Chen
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing 101149, PR China
| | - Jiahao Chen
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong 510275, PR China
| | - Bin Wang
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing 101149, PR China
| | - Dongni Chen
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong 510275, PR China
| | - Dong Shen
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong 510275, PR China
| | - Jinying Tian
- Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, PR China
| | - Fei Ye
- Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, PR China
| | - Yu Lu
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, 97 Ma Chang Street, Beijing 101149, PR China
| | - Haihong Huang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, PR China.
| | - Yongjun Lu
- School of Life Sciences, Sun Yat-sen University, 135 West Xingang Road, Guangzhou, Guangdong 510275, PR China.
| | - Dongfeng Zhang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, PR China.
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23
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Li H, Li T, Hu Q, Yao Z, Li L, Huang Q, Zhou R. Inhibitors targeting the autophosphorylation of serine/threonine kinase of Streptococcus suis show potent antimicrobial activity. Front Microbiol 2022; 13:990091. [PMID: 36118193 PMCID: PMC9478340 DOI: 10.3389/fmicb.2022.990091] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 08/09/2022] [Indexed: 11/19/2022] Open
Abstract
Antimicrobial resistance (AMR) is a global concern threatening public health. Developing novel antibiotics is one of the effective strategies to tackle AMR. Serine/threonine kinases (STKs) have been recently shown to play critical roles in the physiology and pathogenesis of several important bacterial pathogens which are regarded as a promising antimicrobial drug target. We previously reported the roles of STK in the regulation of bacterial cell division, metabolism, and pathogenesis in Streptococcus suis, an important zoonotic bacterial pathogen. In this study, we firstly identified the Thr167 and Ser175 residues in the activation loop of S. suis STK (ssSTK) as the kinase autophosphorylation sites. Phenotyping results demonstrated that the autophosphorylation deficient strain resembled the stk deletion strain showing essentiality for bacterial growth in minimal medium, abnormal morphology, and decreased virulence when compared with the wild-type S. suis SC19 strain. Based on these findings, we established an ssSTK inhibitor screening approach by measuring the growth of S. suis in a minimal medium and testing the autophosphorylation inhibition by measuring the consumption of ATP in an enzymatic reaction by ssSTK. A series of inhibitors against ssSTK are identified from a commercial kinase inhibitors library, including Staurosporine, K252a, AT9283, and APY29. These inhibitors showed antimicrobial activity in vitro. Moreover, by using Galleria mellonella larvae infection assay, compound APY29 displayed in vivo efficacy against S. suis infection. Additionally, it was predicted by molecular docking that these inhibitors could interact with ssSTK. Collectively, our data illustrated the essential roles of ssSTK autophosphorylation in the physiology and pathogenicity of S. suis and consider these inhibitors as promising antimicrobial lead compounds.
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Affiliation(s)
- Haotian Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Tingting Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Qiao Hu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhiming Yao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lu Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Cooperative Innovation Center of Sustainable Pig Production, Wuhan, China
- International Research Center for Animal Disease (Ministry of Science & Technology of China), Wuhan, China
| | - Qi Huang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Cooperative Innovation Center of Sustainable Pig Production, Wuhan, China
- International Research Center for Animal Disease (Ministry of Science & Technology of China), Wuhan, China
- *Correspondence: Qi Huang,
| | - Rui Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Cooperative Innovation Center of Sustainable Pig Production, Wuhan, China
- International Research Center for Animal Disease (Ministry of Science & Technology of China), Wuhan, China
- The HZAU-HVSEN Institute, Wuhan, China
- Rui Zhou,
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24
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Bar-Oz M, Meir M, Barkan D. Virulence-Associated Secretion in Mycobacterium abscessus. Front Immunol 2022; 13:938895. [PMID: 35880173 PMCID: PMC9308005 DOI: 10.3389/fimmu.2022.938895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Non-tuberculous mycobacteria (NTM) are a heterogeneous group of originally environmental organi3sms, increasingly recognized as pathogens with rising prevalence worldwide. Knowledge of NTM’s mechanisms of virulence is lacking, as molecular research of these bacteria is challenging, sometimes more than that of M. tuberculosis (Mtb), and far less resources are allocated to their investigation. While some of the virulence mechanisms are common to several mycobacteria including Mtb, others NTM species-specific. Among NTMs, Mycobacterium abscessus (Mabs) causes some of the most severe and difficult to treat infections, especially chronic pulmonary infections. Mabs survives and proliferates intracellularly by circumventing host defenses, using multiple mechanisms, many of which remain poorly characterized. Some of these immune-evasion mechanisms are also found in Mtb, including phagosome pore formation, inhibition of phagosome maturation, cytokine response interference and apoptosis delay. While much is known of the role of Mtb-secreted effector molecules in mediating the manipulation of the host response, far less is known of the secreted effector molecules in Mabs. In this review, we briefly summarize the knowledge of secreted effectors in Mtb (such as ESX secretion, SecA2, TAT and others), and draw the parallel pathways in Mabs. We also describe pathways that are unique to Mabs, differentiating it from Mtb. This review will assist researchers interested in virulence-associated secretion in Mabs by providing the knowledge base and framework for their studies.
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Affiliation(s)
- Michal Bar-Oz
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Michal Meir
- The Ruth Rappaport Children’s Hospital, Rambam Medical Center, Haifa, Israel
| | - Daniel Barkan
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- *Correspondence: Daniel Barkan,
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25
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Click approach for synthesis of 3,4-dihydro-2(1H) quinolinone, coumarin moored 1,2,3-triazoles as inhibitor of mycobacteria tuberculosis H37RV, their antioxidant, cytotoxicity and in-silico studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Albelwi FF, Abdu Mansour HM, Elshatanofy MM, El Kilany Y, Kandeel K, Elwakil BH, Hagar M, Aouad MR, El Ashry ESH, Rezki N, El Sawy MA. Design, Synthesis and Molecular Docking of Novel Acetophenone-1,2,3-Triazoles Containing Compounds as Potent Enoyl-Acyl Carrier Protein Reductase (InhA) Inhibitors. Pharmaceuticals (Basel) 2022; 15:ph15070799. [PMID: 35890098 PMCID: PMC9316523 DOI: 10.3390/ph15070799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/03/2022] [Accepted: 06/05/2022] [Indexed: 11/25/2022] Open
Abstract
New medications are desperately needed to combat rising drug resistance among tuberculosis (TB) patients. New agents should ideally work through unique targets to avoid being hampered by preexisting clinical resistance to existing treatments. The enoyl-acyl carrier protein reductase InhA of M. tuberculosis is one of the most crucial targets since it is a promising target that has undergone extensive research for anti-tuberculosis drug development. A well-known scaffold for a variety of biological activities, including antitubercular activity, is the molecular linkage of a1,2,3-triazole with an acetamide group. As a result, in the current study, which was aided by ligand-based molecular modeling investigations, 1,2,3-triazolesweredesigned and synthesized adopting the CuAAC aided cycloaddition of 1-(4-(prop-2-yn-1-yloxy)phenyl)ethanone with appropriate acetamide azides. Standard spectroscopic methods were used to characterize the newly synthesized compounds. In vitro testing of the proposed compounds against the InhA enzyme was performed. All the synthesized inhibitors completely inhibited the InhA enzyme at a concentration of 10 µM that exceeded Rifampicin in terms of activity. Compounds 9, 10, and 14 were the most promising InhA inhibitors, with IC50 values of 0.005, 0.008, and 0.002 µM, respectively. To promote antitubercular action and investigate the binding manner of the screened compounds with the target InhA enzyme’s binding site, a molecular docking study was conducted.
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Affiliation(s)
- Fawzia Faleh Albelwi
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (F.F.A.); (H.M.A.M.); (M.R.A.)
| | - Hanaa M. Abdu Mansour
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (F.F.A.); (H.M.A.M.); (M.R.A.)
| | - Maram M. Elshatanofy
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.); (E.S.H.E.A.)
| | - Yeldez El Kilany
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.); (E.S.H.E.A.)
| | - Kamal Kandeel
- Department of Biochemistry, Faculty of Science, Alexandria University, Moharam Beik, Alexandria 21547, Egypt;
| | - Bassma H. Elwakil
- Department of Medical Laboratory Technology, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria 21311, Egypt;
| | - Mohamed Hagar
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.); (E.S.H.E.A.)
| | - Mohamed Reda Aouad
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (F.F.A.); (H.M.A.M.); (M.R.A.)
| | - El Sayed H. El Ashry
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.); (E.S.H.E.A.)
| | - Nadjet Rezki
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (F.F.A.); (H.M.A.M.); (M.R.A.)
- Correspondence:
| | - Maged A. El Sawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Pharos University, Alexandria 21311, Egypt;
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27
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Designing quinoline-isoniazid hybrids as potent anti-tubercular agents inhibiting mycolic acid biosynthesis. Eur J Med Chem 2022; 239:114531. [PMID: 35759907 DOI: 10.1016/j.ejmech.2022.114531] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/04/2022] [Accepted: 06/10/2022] [Indexed: 11/23/2022]
Abstract
Isoniazid is a cornerstone of modern tuberculosis (TB) therapy and targets the enoyl ACP reductase InhA, a key enzyme in mycolic acid biosynthesis. InhA is still a promising target for the development of new anti-TB drugs. Herein, we report the design, synthesis, and anti-tubercular activity of new isoniazid hybrids. Among these, 1H-1,2,3 triazole-tethered quinoline-isoniazid conjugates 16a to 16g exhibited high activity against Mycobacterium tuberculosis with minimal inhibitory concentrations in the 0.25-0.50 μg/mL range and were bactericidal in vitro. Importantly, these compounds were well tolerated at high doses on mammalian cells, leading to high selectivity indices. The hybrids were dependent on functional KatG production to inhibit mycolic acid biosynthesis. Moreover, overexpression of InhA in M. tuberculosis resulted in high resistance levels to 16a-16g and reduced mycolic acid biosynthesis inhibition, similar to isoniazid. Overall, these findings suggest that the synthesized quinoline-isoniazid hybrids are promising anti-tubercular molecules, which require further pre-clinical evaluation.
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28
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Wu X, Zhang Y, Liu S, Liu C, Tang G, Cao X, Lei X, Peng J. Research applications of “linkers” in small molecule drugs design in fragment-based. Bioorg Chem 2022; 127:105921. [DOI: 10.1016/j.bioorg.2022.105921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/12/2022] [Accepted: 05/28/2022] [Indexed: 11/02/2022]
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29
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Sahoo SK, Ahmad MN, Kaul G, Nanduri S, Dasgupta A, Chopra S, Yaddanapudi VM. Synthesis and evaluation of triazole congeners of nitro-benzothiazinones potentially active against drug resistant Mycobacterium tuberculosis demonstrating bactericidal efficacy. RSC Med Chem 2022; 13:585-593. [PMID: 35694687 PMCID: PMC9132192 DOI: 10.1039/d1md00387a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/09/2022] [Indexed: 11/21/2022] Open
Abstract
With growing concerns regarding target residue mutation hovering over established anti-TB pharmacophores, it is imperative to have reserve chemotypes at our disposal to curb unrestrained spread of tuberculosis. In this context, we herein present the synthesis and bio-evaluation of a library of new nitrobenzothiazinone (BTZ) congeners comprising 2-mercapto/amino-benzothiazinone tethered 1,2,3-triazole hybrids as antitubercular agents. In preliminary screening, 10 out of 37 compounds displayed substantial in vitro potency against Mtb H37Rv (MIC 0.5-8 μg mL-1). Structural optimization of the initial hit 5o (MIC 0.5 μg mL-1) led to identification of linker variants 9a, 9b, 9c, and 9d exhibiting potent anti-TB activity (MIC 0.03-0.12 μg mL-1). When tested against Vero cells to determine their selectivity index (SI), these compounds displayed no appreciable cytotoxicity (SI >80). Further studies on activity against drug resistant (DR) Mtb indicated these compounds to be equally potent (MIC 0.03-0.25 μg mL-1). The in silico covalent docking study suggested a similar polar interaction to that of PBTZ169 with an additional and contrasting side chain interaction at the active site of Mtb DprE1 target protein. Further, the time kill kinetic study found compounds 9a and 9d to be demonstrating bactericidal efficacy, completely eliminating bacilli in 7 days at 10× MIC. The most promising compound 9d, considering its potent anti-TB activity (MIC 0.06 μg mL-1 against drug susceptible Mtb and MIC 0.06-0.25 μg mL-1 against DR Mtb) along with a broad therapeutic index (SI >640) demonstrating a comparable concentration dependent bactericidal efficacy to that of RIF, holds a significant edge to be translated into a potent anti-Mtb agent.
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Affiliation(s)
- Santosh Kumar Sahoo
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Mohammad Naiyaz Ahmad
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Janakipuram Extension, Sitapur Road Lucknow 226031 UP India.,AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Grace Kaul
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Janakipuram Extension, Sitapur Road Lucknow 226031 UP India.,AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Srinivas Nanduri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
| | - Arunava Dasgupta
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Janakipuram Extension, Sitapur Road Lucknow 226031 UP India.,AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Sidharth Chopra
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute Sector 10, Janakipuram Extension, Sitapur Road Lucknow 226031 UP India.,AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Venkata Madhavi Yaddanapudi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER) Balanagar Hyderabad 500037 Telangana India
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30
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Emerging impact of triazoles as anti-tubercular agent. Eur J Med Chem 2022; 238:114454. [PMID: 35597009 DOI: 10.1016/j.ejmech.2022.114454] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 05/04/2022] [Accepted: 05/08/2022] [Indexed: 01/08/2023]
Abstract
Tuberculosis, a disease of poverty is a communicable infection with a reasonably high mortality rate worldwide. 10 Million new cases of TB were reported with approx 1.4 million deaths in the year 2019. Due to the growing number of drug-sensitive and drug-resistant tuberculosis cases, there is a vital need to develop new and effective candidates useful to combat this deadly disease. Despite tremendous efforts to identify a mechanism-based novel antitubercular agent, only a few have entered into clinical trials in the last six decades. In recent years, triazoles have been well explored as the most valuable scaffolds in drug discovery and development. Triazole framework possesses favorable properties like hydrogen bonding, moderate dipole moment, enhanced water solubility, and also the ability to bind effectively with biomolecular targets of M. tuberculosis and therefore this scaffold displayed excellent potency against TB. This review is an endeavor to summarize an up-to-date innovation of triazole-appended hybrids during the last 10 years having potential in vitro and in vivo antitubercular activity with structure activity relationship analysis. This review may help medicinal chemists to explore the triazole scaffolds for the rational design of potent drug candidates having better efficacy, improved selectivity and minimal toxicity so that these hybrid NCEs can effectively be explored as potential lead to fight against M. tuberculosis.
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31
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Menegatti ACO. Targeting protein tyrosine phosphatases for the development of antivirulence agents: Yersinia spp. and Mycobacterium tuberculosis as prototypes. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2022; 1870:140782. [PMID: 35470106 DOI: 10.1016/j.bbapap.2022.140782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
Protein phosphorylation mediated by protein kinases and phosphatases has a central regulatory function in many cellular processes in eukaryotes and prokaryotes. As a result, several diseases caused by imbalance in phosphorylation levels are known, especially due to protein tyrosine phosphatases (PTPs) activity, an important family of signaling enzymes. Furthermore, over the last decades several studies have shown the main role of PTPs in pathogenic bacteria: they are associated with growth, cell division, cell wall biosynthesis, biofilm formation, metabolic processes, as well as virulence factor. In this way, PTPs have ascended as targets for antibacterial drug design, particularly in view of the antibiotic resistance in pathogenic bacteria, which demands novel therapeutics strategies. Targeting secreted PTPs is an antivirulence strategy to combat the emergence of antimicrobial resistance (AMR). This review focuses on the recent advances in understanding the role of PTPs and the approaches to target them, with an emphasis in Yersinia spp. and Mycobacterium tuberculosis pathogenesis.
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Affiliation(s)
- Angela Camila Orbem Menegatti
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, Paraíba, Brazil.
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Stévenin V, Neefjes J. Control of host PTMs by intracellular bacteria: An opportunity toward novel anti-infective agents. Cell Chem Biol 2022; 29:741-756. [PMID: 35512694 DOI: 10.1016/j.chembiol.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/15/2022] [Accepted: 04/15/2022] [Indexed: 02/08/2023]
Abstract
Intracellular bacteria have developed a multitude of mechanisms to influence the post-translational modifications (PTMs) of host proteins to pathogen advantages. The recent explosion of insights into the diversity and sophistication of host PTMs and their manipulation by infectious agents challenges us to formulate a comprehensive vision of this complex and dynamic facet of the host-pathogen interaction landscape. As new discoveries continue to shed light on the central roles of PTMs in infectious diseases, technological advances foster our capacity to detect old and new PTMs and investigate their control and impact during pathogenesis, opening new possibilities for chemical intervention and infection treatment. Here, we present a comprehensive overview of these pathogenic mechanisms and offer perspectives on how these insights may contribute to the development of a new class of therapeutics that are urgently needed to face rising antibiotic resistances.
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Affiliation(s)
- Virginie Stévenin
- Department of Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center (LUMC), Leiden 2333 ZC, the Netherlands.
| | - Jacques Neefjes
- Department of Cell and Chemical Biology, Oncode Institute, Leiden University Medical Center (LUMC), Leiden 2333 ZC, the Netherlands
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El Sawy MA, Elshatanofy MM, El Kilany Y, Kandeel K, Elwakil BH, Hagar M, Aouad MR, Albelwi FF, Rezki N, Jaremko M, El Ashry ESH. Novel Hybrid 1,2,4- and 1,2,3-Triazoles Targeting Mycobacterium Tuberculosis Enoyl Acyl Carrier Protein Reductase (InhA): Design, Synthesis, and Molecular Docking. Int J Mol Sci 2022; 23:4706. [PMID: 35563096 PMCID: PMC9103244 DOI: 10.3390/ijms23094706] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 12/28/2022] Open
Abstract
Tuberculosis (TB) caused by Mycobacterium tuberculosis is still a serious public health concern around the world. More treatment strategies or more specific molecular targets have been sought by researchers. One of the most important targets is M. tuberculosis' enoyl-acyl carrier protein reductase InhA which is considered a promising, well-studied target for anti-tuberculosis medication development. Our team has made it a goal to find new lead structures that could be useful in the creation of new antitubercular drugs. In this study, a new class of 1,2,3- and 1,2,4-triazole hybrid compounds was prepared. Click synthesis was used to afford 1,2,3-triazoles scaffold linked to 1,2,4-triazole by fixable mercaptomethylene linker. The new prepared compounds have been characterized by different spectroscopic tools. The designed compounds were tested in vitro against the InhA enzyme. At 10 nM, the inhibitors 5b, 5c, 7c, 7d, 7e, and 7f successfully and totally (100%) inhibited the InhA enzyme. The IC50 values were calculated using different concentrations. With IC50 values of 0.074 and 0.13 nM, 7c and 7e were the most promising InhA inhibitors. Furthermore, a molecular docking investigation was carried out to support antitubercular activity as well as to analyze the binding manner of the screened compounds with the target InhA enzyme's binding site.
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Affiliation(s)
- Maged A. El Sawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Pharos University, Alexandria 21311, Egypt
| | - Maram M. Elshatanofy
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.)
| | - Yeldez El Kilany
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.)
| | - Kamal Kandeel
- Department of Biochemistry, Faculty of Science, Alexandria University, Moharam Beik, Alexandria 21547, Egypt;
| | - Bassma H. Elwakil
- Department of Medical Laboratory Technology, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria 21311, Egypt;
| | - Mohamed Hagar
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.)
| | - Mohamed Reda Aouad
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (M.R.A.); (F.F.A.); (N.R.)
| | - Fawzia Faleh Albelwi
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (M.R.A.); (F.F.A.); (N.R.)
| | - Nadjet Rezki
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (M.R.A.); (F.F.A.); (N.R.)
| | - Mariusz Jaremko
- Smart-Health Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), P.O. Box 4700, Thuwal 23955-6900, Saudi Arabia;
| | - El Sayed H. El Ashry
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt; (M.M.E.); (Y.E.K.); (M.H.)
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Dadlani VG, Chhabhaiya H, Somani RR, Tripathi PK. Synthesis, molecular docking, and biological evaluation of novel 1,2,4-triazole-isatin derivatives as potential Mycobacterium tuberculosis shikimate kinase inhibitors. Chem Biol Drug Des 2022; 100:230-244. [PMID: 35434882 DOI: 10.1111/cbdd.14060] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/20/2022] [Accepted: 04/10/2022] [Indexed: 11/30/2022]
Abstract
The issue of emerging resistance to antitubercular drugs has created a formidable barrier in the effective prevention and cure of tuberculosis globally. In an effort to search for new antimycobacterial agents, possibly comprising new pharmacophore, novel triazole-isatin derivatives were designed as Mycobacterium tuberculosis shikimate kinase inhibitors and synthesized by microwave-assisted method. The synthesized molecules were evaluated for their antimycobacterial activity by MABA assay against M. tuberculosis H37Rv. The molecule 5h demonstrated MIC of 0.8 μg/ml and good safety profile with higher selectivity index with HEK293 cell line. The antimycobacterial activity was further substantiated with molecular docking studies. The triazole-isatin derivatives showed significant binding interactions with amino acid residues in the active site of the enzyme. These studies revealed that molecule 5h could act as a potential lead molecule for further studies to find new target-directed molecules.
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Affiliation(s)
- Vedika G Dadlani
- Department of Pharmaceutical Chemistry, Dr. L. H. Hiranandani College of Pharmacy, Ulhasnagar, India
| | - Heta Chhabhaiya
- Department of Pharmaceutical Chemistry, Dr. L. H. Hiranandani College of Pharmacy, Ulhasnagar, India
| | - Rakesh R Somani
- Department of Pharmaceutical Chemistry, D Y Patil University School of Pharmacy, Navi Mumbai, India
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Jain A, Maji S, Shukla K, Kumari A, Garg S, Metre RK, Bhattacharyya S, Rana NK. Stereoselective synthesis of tri-substituted tetrahydrothiophenes and their in silico binding against mycobacterial protein tyrosine phosphatase B. Org Biomol Chem 2022; 20:3124-3135. [PMID: 35343552 DOI: 10.1039/d2ob00052k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile approach to tri-substituted tetrahydrothiophenes via thia-Michael/aldol has been developed. The cascade reaction was carried out in the presence of 5 mol% of DABCO in ethyl acetate to afford diversely functionalized tetrahydrothiophenes (THTs) with excellent diastereoselectivity. The present methodology has broad substrate tolerance. Gram-scale reaction proceeds with equal efficiency. Functional group transformations further highlight the synthetic potential of the THTs. An asymmetric version of the cascade reaction has also been investigated and a maximum of 72% ee was observed with cinchonidine derived squaramide. Moreover, in silico based molecular docking followed by deep learning based affinity prediction and molecular dynamics simulation analysis indicate the synthesized THT derivatives can act as potent competitive inhibitors of MptpB at low micromolar to nanomolar concentrations. In silico ADME analysis further suggests the plausibility of these compounds to act as future anti-mycobacterial therapeutic leads.
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Affiliation(s)
- Anshul Jain
- Department of Chemistry, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
| | - Sushobhan Maji
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
| | - Khyati Shukla
- Department of Chemistry, Indian Institute of Technology Kanpur, Uttar Pradesh-208016, India
| | - Akanksha Kumari
- Department of Chemistry, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
| | - Shivani Garg
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
| | - Ramesh K Metre
- Department of Chemistry, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
| | - Sudipta Bhattacharyya
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
| | - Nirmal K Rana
- Department of Chemistry, Indian Institute of Technology Jodhpur, Rajashtan-342037, India.
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36
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Cazzaniga G, Mori M, Meneghetti F, Chiarelli LR, Stelitano G, Caligiuri I, Rizzolio F, Ciceri S, Poli G, Staver D, Ortore G, Tuccinardi T, Villa S. Virtual screening and crystallographic studies reveal an unexpected γ-lactone derivative active against MptpB as a potential antitubercular agent. Eur J Med Chem 2022; 234:114235. [DOI: 10.1016/j.ejmech.2022.114235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 02/03/2022] [Accepted: 02/23/2022] [Indexed: 11/04/2022]
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37
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Hassan S, Meenatchi R, Pachillu K, Bansal S, Brindangnanam P, Arockiaraj J, Kiran GS, Selvin J. Identification and characterization of the novel bioactive compounds from microalgae and cyanobacteria for pharmaceutical and nutraceutical applications. J Basic Microbiol 2022; 62:999-1029. [PMID: 35014044 DOI: 10.1002/jobm.202100477] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/08/2021] [Accepted: 12/23/2021] [Indexed: 12/21/2022]
Abstract
Microalgae and cyanobacteria (blue-green algae) are used as food by humans. They have gained a lot of attention in recent years because of their potential applications in biotechnology. Microalgae and cyanobacteria are good sources of many valuable compounds, including important biologically active compounds with antiviral, antibacterial, antifungal, and anticancer activities. Under optimal growth condition and stress factors, algal biomass produce varieties of potential bioactive compounds. In the current review, bioactive compounds production and their remarkable applications such as pharmaceutical and nutraceutical applications along with processes involved in identification and characterization of the novel bioactive compounds are discussed. Comprehensive knowledge about the exploration, extraction, screening, and trading of bioactive products from microalgae and cyanobacteria and their pharmaceutical and other applications will open up new avenues for drug discovery and bioprospecting.
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Affiliation(s)
- Saqib Hassan
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India.,Division of Non-Communicable Diseases, Indian Council of Medical Research (ICMR), New Delhi, India
| | - Ramu Meenatchi
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India.,Department of Biotechnology, College of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India
| | - Kalpana Pachillu
- Center for Development Research (ZEF), University of Bonn, Bonn, Germany
| | - Sonia Bansal
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Pownraj Brindangnanam
- Department of Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Jesu Arockiaraj
- Department of Biotechnology, College of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India.,Foundation for Aquaculture Innovation and Technology Transfer (FAITT), Thoraipakkam, Chennai, Tamil Nadu, India
| | - George Seghal Kiran
- Department of Food Science and Technology, Pondicherry University, Puducherry, India
| | - Joseph Selvin
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
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38
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Kancharla SK, Birudaraju S, Pal A, Krishnakanth Reddy L, Reddy ER, Vagolu SK, Sriram D, Bonige KB, Korupolu RB. Synthesis and biological evaluation of isatin oxime ether-tethered aryl 1 H-1,2,3-triazoles as inhibitors of Mycobacterium tuberculosis. NEW J CHEM 2022. [DOI: 10.1039/d1nj05171g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A series of isatin oxime ether-tethered aryl 1H-1,2,3-triazole hybrids were synthesized and screened for their in vitro antitubercular activity against the M. tuberculosis H37Rv strain.
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Affiliation(s)
- Sampath Kumar Kancharla
- Aragen Life Sciences (Formerly GVK Bioscience), Nacharam, Hyderabad, Telangana State-500076, India
- Department of Engineering Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh-530003, India
| | - Saritha Birudaraju
- Aragen Life Sciences (Formerly GVK Bioscience), Nacharam, Hyderabad, Telangana State-500076, India
| | - Arani Pal
- Aragen Life Sciences (Formerly GVK Bioscience), Nacharam, Hyderabad, Telangana State-500076, India
| | - L. Krishnakanth Reddy
- Aragen Life Sciences (Formerly GVK Bioscience), Nacharam, Hyderabad, Telangana State-500076, India
| | - Eda Rami Reddy
- Department of Chemistry, Indian Institute of Technology, Indore, 453552, India
| | - Siva Krishna Vagolu
- Medicinal Chemistry & Antimycobacterial Research Laboratory, Pharmacy Group, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Telangana State-500078, India
| | - Dharmarajan Sriram
- Medicinal Chemistry & Antimycobacterial Research Laboratory, Pharmacy Group, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Telangana State-500078, India
| | - Kishore Babu Bonige
- Department of Engineering Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh-530003, India
| | - Raghu Babu Korupolu
- Department of Engineering Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh-530003, India
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39
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Chitti S, Van Calster K, Cappoen D, Nandikolla A, Khetmalis YM, Cos P, Kumar BK, Murugesan S, Gowri Chandra Sekhar KV. Design, synthesis and biological evaluation of benzo-[ d]-imidazo-[2,1- b]-thiazole and imidazo-[2,1- b]-thiazole carboxamide triazole derivatives as antimycobacterial agents. RSC Adv 2022; 12:22385-22401. [PMID: 36105967 PMCID: PMC9364363 DOI: 10.1039/d2ra03318f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/03/2022] [Indexed: 11/21/2022] Open
Abstract
In the search for new anti-mycobacterial agents, we revealed the importance of imidazo-[2,1-b]-thiazole and benzo-[d]-imidazo-[2,1-b]-thiazole carboxamide derivatives. We designed, in silico ADMET predicted and synthesized four series of novel imidazo-[2,1-b]-thiazole and benzo-[d]-imidazo-[2,1-b]-thiazole carboxamide analogues in combination with piperazine and various 1,2,3 triazoles. All the synthesized derivatives were characterized by 1H NMR, 13C NMR, HPLC and MS spectral analysis and evaluated for in vitro antitubercular activity. The most active benzo-[d]-imidazo-[2,1-b]-thiazole derivative IT10, carrying a 4-nitro phenyl moiety, displayed IC90 of 7.05 μM and IC50 of 2.32 μM against Mycobacterium tuberculosis (Mtb) H37Ra, while no acute cellular toxicity was observed (>128 μM) towards the MRC-5 lung fibroblast cell line. Another benzo-[d]-imidazo-[2,1-b]-thiazole compound, IT06, which possesses a 2,4-dichloro phenyl moiety, also showed significant activity with IC50 2.03 μM and IC90 15.22 μM against the tested strain of Mtb. Furthermore, the selected hits showed no activity towards a panel of non-tuberculous mycobacteria (NTM), thus suggesting a selective inhibition of Mtb by the tested imidazo-[2,1-b]-thiazole derivatives over the selected panel of NTM. Molecular docking and dynamics studies were also carried out for the most active compounds IT06 and IT10 in order to understand the putative binding pattern, as well as stability of the protein–ligand complex, against the selected target Pantothenate synthetase of Mtb. In the search for new anti-mycobacterial agents, we revealed the importance of imidazo-[2,1-b]-thiazole and benzo-[d]-imidazo-[2,1-b]-thiazole carboxamide derivatives.![]()
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Affiliation(s)
- Surendar Chitti
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad-500 078, Telangana, India
| | - Kevin Van Calster
- Laboratory of Microbiology, Parasitology and Hygiene, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Davie Cappoen
- Laboratory of Microbiology, Parasitology and Hygiene, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Adinarayana Nandikolla
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad-500 078, Telangana, India
| | - Yogesh Mahadu Khetmalis
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad-500 078, Telangana, India
| | - Paul Cos
- Laboratory of Microbiology, Parasitology and Hygiene, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani-333031, Rajasthan, India
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani-333031, Rajasthan, India
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40
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Sharma B, Kumar S, Preeti, Johansen MD, Kremer L, Kumar V. 1H-1,2,3-triazole embedded Isatin-Benzaldehyde-bis(heteronuclearhydrazones): design, synthesis, antimycobacterial, and cytotoxic evaluation. Chem Biol Drug Des 2021; 99:301-307. [PMID: 34786862 DOI: 10.1111/cbdd.13984] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/28/2021] [Accepted: 10/30/2021] [Indexed: 12/20/2022]
Abstract
Rapid growth of global drug-resistant tuberculosis and urgent requirement for short treatment regimens is stimulating the need for discovery of new TB drugs. In this work, we report the design, synthesis and in vitro antimycobacterial evaluation of a library of isatin-derived bis(heteronuclear hydrazones). Evaluation results revealed that the inclusion of isoniazid core into 1H-1,2,3-triazole tethered isatin-benzaldehydes improved the antimycobacterial activity on tuberculosis mc2 6230 strain and significantly reduced the cytotoxicity against Vero cells. However, the introduction of semicarbazones/thiosemicarbazones or pyrazine-2-carbohydrazide produced the opposite effects. The compounds with isoniazid and polar-donating groups at the C-5 position of isatin emerged as the most promising conjugates with MIC99 = 0.36 µg/ml. The most active compounds were non-cytotoxic to Vero cells (IC50 >100 µg/ml) with selectivity indices >277.
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Affiliation(s)
- Bharvi Sharma
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
| | - Sumit Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
| | - Preeti
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
| | - Matt D Johansen
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France.,Faculty of Science, Centre for Inflammation, Centenary Institute and University of Technology Sydney, Sydney, New South Wales, Australia
| | - Laurent Kremer
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France.,INSERM, IRIM, Montpellier, France
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar, India
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41
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Kalra R, Tiwari D, Dkhar HK, Bhagyaraj E, Kumar R, Bhardwaj A, Gupta P. Host factors subverted by Mycobacterium tuberculosis: Potential targets for host directed therapy. Int Rev Immunol 2021; 42:43-70. [PMID: 34678117 DOI: 10.1080/08830185.2021.1990277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Despite new approaches in the diagnosis and treatment of tuberculosis (TB), it continues to be a major health burden. Several immunotherapies that potentiate the immune response have come up as adjuncts to drug therapies against drug resistant TB strains; however, there needs to be an urgent appraisal of host specific drug targets for improving their clinical management and to curtail disease progression. Presently, various host directed therapies (HDTs) exist (repurposed drugs, nutraceuticals, monoclonal antibodies and immunomodulatory agents), but these mostly address molecules that combat disease progression. AREAS COVERED The current review discusses major Mycobacterium tuberculosis (M. tuberculosis) survival paradigms inside the host and presents a plethora of host targets subverted by M. tuberculosis which can be further explored for future HDTs. The host factors unique to M. tuberculosis infection (in humans) have also been identified through an in-silico interaction mapping. EXPERT OPINION HDTs could become the next-generation adjunct therapies in order to counter antimicrobial resistance and virulence, as well as to reduce the duration of existing TB treatments. However, current scientific efforts are largely directed toward combatants rather than host molecules co-opted by M. tuberculosis for its survival. This might drive the immune system to a hyper-inflammatory condition; therefore, we emphasize that host factors subverted by M. tuberculosis, and their subsequent neutralization, must be considered for development of better HDTs.
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Affiliation(s)
- Rashi Kalra
- Department of Molecular Biology, CSIR-Institute of Microbial Technology, Chandigarh-160036, India
| | - Drishti Tiwari
- Department of Molecular Biology, CSIR-Institute of Microbial Technology, Chandigarh-160036, India
| | - Hedwin Kitdorlang Dkhar
- Department of Molecular Biology, CSIR-Institute of Microbial Technology, Chandigarh-160036, India
| | - Ella Bhagyaraj
- Department of Molecular Biology, CSIR-Institute of Microbial Technology, Chandigarh-160036, India
| | - Rakesh Kumar
- Bioinformatics Center, CSIR-Institute of Microbial Technology, Chandigarh-160036, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Anshu Bhardwaj
- Bioinformatics Center, CSIR-Institute of Microbial Technology, Chandigarh-160036, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pawan Gupta
- Department of Molecular Biology, CSIR-Institute of Microbial Technology, Chandigarh-160036, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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42
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Functional interrogation and therapeutic targeting of protein tyrosine phosphatases. Biochem Soc Trans 2021; 49:1723-1734. [PMID: 34431504 DOI: 10.1042/bst20201308] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/28/2021] [Accepted: 07/30/2021] [Indexed: 12/17/2022]
Abstract
Protein tyrosine phosphatases (PTPs) counteract the enzymatic activity of protein tyrosine kinases to modulate levels of both normal and disease-associated protein tyrosine phosphorylation. Aberrant activity of PTPs has been linked to the progression of many disease states, yet no PTP inhibitors are currently clinically available. PTPs are without a doubt a difficult drug target. Despite this, many selective, potent, and bioavailable PTP inhibitors have been described, suggesting PTPs should once again be looked at as viable therapeutic targets. Herein, we summarize recently discovered PTP inhibitors and their use in the functional interrogation of PTPs in disease states. In addition, an overview of the therapeutic targeting of PTPs is described using SHP2 as a representative target.
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43
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Cazzaniga G, Mori M, Chiarelli LR, Gelain A, Meneghetti F, Villa S. Natural products against key Mycobacterium tuberculosis enzymatic targets: Emerging opportunities for drug discovery. Eur J Med Chem 2021; 224:113732. [PMID: 34399099 DOI: 10.1016/j.ejmech.2021.113732] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/15/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022]
Abstract
For centuries, natural products (NPs) have served as powerful therapeutics against a variety of human ailments. Nowadays, they still represent invaluable resources for the treatment of many diseases, including bacterial infections. After nearly three decades since the World Health Organization's (WHO) declaration of tuberculosis (TB) as a global health emergency, Mycobacterium tuberculosis (Mtb) continues to claim millions of lives, remaining among the leading causes of death worldwide. In the last years, several efforts have been devoted to shortening and improving treatment outcomes, and to overcoming the increasing resistance phenomenon. Nature has always provided a virtually unlimited source of bioactive molecules, which have inspired the development of new drugs. NPs are characterized by an exceptional chemical and structural diversity, the result of millennia of evolutionary responses to various stimuli. Thanks to their favorable structural features and their enzymatic origin, they are naturally prone to bind proteins and exhibit bioactivities. Furthermore, their worldwide distribution and ease of accessibility has contributed to promote investigations on their activity. Overall, these characteristics make NPs excellent models for the design of novel therapeutics. This review offers a critical and comprehensive overview of the most promising NPs, isolated from plants, fungi, marine species, and bacteria, endowed with inhibitory properties against traditional and emerging mycobacterial enzymatic targets. A selection of 86 compounds is here discussed, with a special emphasis on their biological activity, structure-activity relationships, and mechanism of action. Our study corroborates the antimycobacterial potential of NPs, substantiating their relevance in future drug discovery and development efforts.
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Affiliation(s)
- Giulia Cazzaniga
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
| | - Matteo Mori
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
| | - Laurent Roberto Chiarelli
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, via A. Ferrata 9, 27100, Pavia, Italy
| | - Arianna Gelain
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
| | - Fiorella Meneghetti
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy.
| | - Stefania Villa
- Department of Pharmaceutical Sciences, University of Milan, via L. Mangiagalli 25, 20133, Milano, Italy
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SAVALAS LRT, LESTARİ A, MUNİRAH M, FARİDA S, SUHENDRA D, ASNAWATİ D, 'ARDHUHA J, SARI NİNGSİH B, SYAHRİ J. cis-2 and trans-2-eicosenoic Fatty Acids Inhibit Mycobacterium tuberculosis Virulence Factor Protein Tyrosine Phosphatase B. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2021. [DOI: 10.18596/jotcsa.896489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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45
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Guo H, Wu Q, Chen D, Jiang M, Chen B, Lu Y, Li J, Liu L, Chen S. Absolute configuration of polypropionate derivatives: Decempyrones A-J and their MptpA inhibition and anti-inflammatory activities. Bioorg Chem 2021; 115:105156. [PMID: 34314917 DOI: 10.1016/j.bioorg.2021.105156] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 11/30/2022]
Abstract
Under guidance of 1H NMR, ten new polypropionate derivatives, decempyrones A-J (1-10) along with two known analogues (11 and 12), were isolated from the marine-derived fungusFusarium decemcellulare SYSU-MS6716. The planar structures were elucidated on the basis of extensive spectroscopic analyses (1D and 2D NMR, and HR-ESIMS). The absolute configuration of the chiral centers in the side chain is a major obstacle for the structure identification of natural polypropionate derivatives. Herein, the J-based configurational analysis (JBCA), chemical degradation, geminal proton rule, and the modified Mosher's method were adopted to fix their absolute configurations in the side chain. Compounds 3 and 10 exhibited potent anti-inflammatory activity by inhibiting the production of NO in RAW264.7 cells activated by lipopolysaccharide with IC50values 22.4 ± 1.8 and 21.7 ± 1.1 μM. In addition, compounds 3 and 10 displayed MptpA inhibitory activity with an IC50 value of 19.2 ± 0.9 and 33.1 ± 2.9 µM. Structure-activity relationships of the polypropionate derivatives were discussed.
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Affiliation(s)
- Heng Guo
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qilin Wu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Dongni Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Minghua Jiang
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Bin Chen
- Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China
| | - Yongjun Lu
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Jing Li
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai 519082, China
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Zhuhai 519082, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai 519082, China
| | - Senhua Chen
- School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai 519082, China.
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46
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Oku T, Kaneko Y, Ishii R, Hitomi Y, Tsuiji M, Toyoshima S, Tsuji T. Coronin-1 is phosphorylated at Thr-412 by protein kinase Cα in human phagocytic cells. Biochem Biophys Rep 2021; 27:101041. [PMID: 34189278 PMCID: PMC8220002 DOI: 10.1016/j.bbrep.2021.101041] [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] [Received: 01/18/2021] [Revised: 04/17/2021] [Accepted: 05/31/2021] [Indexed: 11/25/2022] Open
Abstract
Coronin-1, a hematopoietic cell-specific actin-binding protein, is thought to be involved in the phagocytic process through its interaction with actin filaments. The dissociation of coronin-1 from phagosomes after its transient accumulation on the phagosome surface is associated with lysosomal fusion. We previously reported that 1) coronin-1 is phosphorylated by protein kinase C (PKC), 2) coronin-1 has two phosphorylation sites, Ser-2 and Thr-412, and 3) Thr-412 of coronin-1 is phosphorylated during phagocytosis. In this study, we examined which PKC isoform is responsible for the phosphorylation of coronin-1 at Thr-412 by using isotype-specific PKC inhibitors and small interfering RNAs (siRNAs). Thr-412 phosphorylation of coronin-1 was suppressed by Gö6976, an inhibitor of PKCα and PKCβI. This phosphorylation was attenuated by siRNA for PKCα, but not by siRNA for PKCβ. Furthermore, Thr-412 of coronin-1 was phosphorylated by recombinant PKCα in vitro, but not by recombinant PKCβ. We next examined the effects of Gö6976 on the intracellular distribution of coronin-1 in HL60 cells during phagocytosis. The confocal fluorescence microscopic observation showed that coronin-1 was not dissociated from phagosomes in Gö6976-treated cells. These results indicate that phosphorylation of coronin-1 at Thr-412 by PKCα regulates intracellular distribution during phagocytosis. Phosphorylation of coronin-1 at Thr-412 is suppressed by PKCα/β inhibitor. PKCα not PKCβ phosphorylates coronin-1 at Thr-412 in vitro. Dissociation of coronin-1 from phagosome is regulated by PKCα. Phosphorylation of coronin-1 at Thr-412 may trigger phagosome maturation.
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Affiliation(s)
- Teruaki Oku
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
- Corresponding author.
| | - Yutaka Kaneko
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Rie Ishii
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yuki Hitomi
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Makoto Tsuiji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Satoshi Toyoshima
- Japan Pharmacists Education Center, 1-9-13 Akasaka, Minato-ku, Tokyo, 107-0052, Japan
| | - Tsutomu Tsuji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
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Wen Q, Li Y, Han Z, Liu H, Zhang S, Chen Y, He J, Du X, Fu Y, Zhang L, Zhang Z, Huang Y, Zhou X, Zhou C, Hu S, Ma L. β-Arrestin 2 Regulates Inflammatory Responses against Mycobacterium tuberculosis Infection through ERK1/2 Signaling. THE JOURNAL OF IMMUNOLOGY 2021; 206:2623-2637. [PMID: 34001657 DOI: 10.4049/jimmunol.2001346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/23/2021] [Indexed: 11/19/2022]
Abstract
Mycobacterium tuberculosis, the pathogen that causes tuberculosis, exhibits complex host-pathogen interactions. Pattern recognition receptors and their downstream signaling pathways play crucial roles in determining the outcome of infection. In particular, the scaffold protein β-arrestin 2 mediates downstream signaling of G protein-coupled receptors. However, the role of β-arrestin 2 in conferring immunity against M. tuberculosis has not yet been explored. We found that β-arrestin 2 was upregulated in the lesioned regions of lung tissues in patients with tuberculosis. M. tuberculosis infection upregulated β-arrestin 2 expression in human macrophages, and silencing of β-arrestin 2 significantly enhanced bactericidal activity by enhancing the expression of proinflammatory cytokines such as TNF-α. β-Arrestin 2 was shown to inhibit the activation of the TLR2/ERK1/2 pathway and its transcriptional regulation activity upon M. tuberculosis infection. Furthermore, β-arrestin 2 transcriptionally regulates TNF-α by binding to CREB1. These observations revealed that the upregulation of β-arrestin 2 is critical for M. tuberculosis to escape immune surveillance through an unknown mechanism. Our research offers a novel interference modality to enhance the immune response against tuberculosis by targeting β-arrestin 2 to modulate the TLR2-β-arrestin 2-ERK1/2-CREB1-TNF-α regulatory axis.
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Affiliation(s)
- Qian Wen
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yanfen Li
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Zhenyu Han
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Honglin Liu
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Shimeng Zhang
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yaoxin Chen
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jianchun He
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Xialin Du
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yuling Fu
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Lijie Zhang
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Zelin Zhang
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yulan Huang
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Xinying Zhou
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Chaoying Zhou
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Shengfeng Hu
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Li Ma
- Institute of Molecular Immunology, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
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Li L, MacIntyre LW, Ali T, Russo R, Koirala B, Hernandez Y, Brady SF. Biosynthetic Interrogation of Soil Metagenomes Reveals Metamarin, an Uncommon Cyclomarin Congener with Activity against Mycobacterium tuberculosis. JOURNAL OF NATURAL PRODUCTS 2021; 84:1056-1066. [PMID: 33621083 PMCID: PMC8068612 DOI: 10.1021/acs.jnatprod.0c01104] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Indexed: 05/21/2023]
Abstract
Tuberculosis (TB) remains one of the deadliest infectious diseases. Unfortunately, the development of antibiotic resistance threatens our current therapeutic arsenal, which has necessitated the discovery and development of novel antibiotics against drug-resistant Mycobacterium tuberculosis (Mtb). Cyclomarin A and rufomycin I are structurally related cyclic heptapeptides assembled by nonribosomal peptide synthetases (NRPSs), which show potent anti-Mtb activity with a new cellular target, the caseinolytic protein ClpC1. An NRPS adenylation domain survey using DNA extracted from ∼2000 ecologically diverse soils found low cyclomarin/rufomycin biosynthetic diversity. In this survey, a family of cyclomarin/rufomycin-like biosynthetic gene clusters (BGC) that encode metamarin, an uncommon cyclomarin congener with potent activity against both Mtb H37Rv and multidrug-resistant Mtb clinical isolates was identified. Metamarin effectively inhibits Mtb growth in murine macrophages and increases the activities of ClpC1 ATPase and the associated ClpC1/P1/P2 protease complex, thus causing cell death by uncontrolled protein degradation.
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Affiliation(s)
- Lei Li
- Laboratory
of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Logan W. MacIntyre
- Laboratory
of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Thahmina Ali
- Laboratory
of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Riccardo Russo
- Rutgers,
The State University of New Jersey, International Center for Public Health, 225 Warren Street, Newark, New Jersey 07103, United States
| | - Bimal Koirala
- Laboratory
of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Yozen Hernandez
- Laboratory
of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Sean F. Brady
- Laboratory
of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
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Fernández-Soto P, Casulli J, Solano-Castro D, Rodríguez-Fernández P, Jowitt TA, Travis MA, Cavet JS, Tabernero L. Discovery of uncompetitive inhibitors of SapM that compromise intracellular survival of Mycobacterium tuberculosis. Sci Rep 2021; 11:7667. [PMID: 33828158 PMCID: PMC8027839 DOI: 10.1038/s41598-021-87117-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 02/15/2021] [Indexed: 12/28/2022] Open
Abstract
SapM is a secreted virulence factor from Mycobacterium tuberculosis critical for pathogen survival and persistence inside the host. Its full potential as a target for tuberculosis treatment has not yet been exploited because of the lack of potent inhibitors available. By screening over 1500 small molecules, we have identified new potent and selective inhibitors of SapM with an uncompetitive mechanism of inhibition. The best inhibitors share a trihydroxy-benzene moiety essential for activity. Importantly, the inhibitors significantly reduce mycobacterial burden in infected human macrophages at 1 µM, and they are selective with respect to other mycobacterial and human phosphatases. The best inhibitor also reduces intracellular burden of Francisella tularensis, which secretes the virulence factor AcpA, a homologue of SapM, with the same mechanism of catalysis and inhibition. Our findings demonstrate that inhibition of SapM with small molecule inhibitors is efficient in reducing intracellular mycobacterial survival in host macrophages and confirm SapM as a potential therapeutic target. These initial compounds have favourable physico-chemical properties and provide a basis for exploration towards the development of new tuberculosis treatments. The efficacy of a SapM inhibitor in reducing Francisella tularensis intracellular burden suggests the potential for developing broad-spectrum antivirulence agents to treat microbial infections.
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Affiliation(s)
- Paulina Fernández-Soto
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK
| | - Joshua Casulli
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK.,Lydia Becker Institute for Immunology and Inflammation, University of Manchester, Manchester, UK.,Wellcome Centre for Cell-Matrix Research, University of Manchester, Manchester, UK
| | - Danilo Solano-Castro
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK
| | - Pablo Rodríguez-Fernández
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK
| | - Thomas A Jowitt
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK.,Wellcome Centre for Cell-Matrix Research, University of Manchester, Manchester, UK
| | - Mark A Travis
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK.,Lydia Becker Institute for Immunology and Inflammation, University of Manchester, Manchester, UK.,Wellcome Centre for Cell-Matrix Research, University of Manchester, Manchester, UK
| | - Jennifer S Cavet
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK
| | - Lydia Tabernero
- School of Biological Sciences, Faculty of Biology Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, M13 9PT, UK. .,Lydia Becker Institute for Immunology and Inflammation, University of Manchester, Manchester, UK.
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50
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Wang L, Umezawa K. Cellular Signal Transductions and Their Inhibitors Derived from Deep-Sea Organisms. Mar Drugs 2021; 19:md19040205. [PMID: 33916424 PMCID: PMC8065634 DOI: 10.3390/md19040205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 12/11/2022] Open
Abstract
Not only physiological phenomena but also pathological phenomena can now be explained by the change of signal transduction in the cells of specific tissues. Commonly used cellular signal transductions are limited. They consist of the protein-tyrosine kinase dependent or independent Ras-ERK pathway, and the PI3K-Akt, JAK-STAT, SMAD, and NF-κB-activation pathways. In addition, biodegradation systems, such as the ubiquitin-proteasome pathway and autophagy, are also important for physiological and pathological conditions. If we can control signaling for each by a low-molecular-weight agent, it would be possible to treat diseases in new ways. At present, such cell signaling inhibitors are mainly looked for in plants, soil microorganisms, and the chemical library. The screening of bioactive metabolites from deep-sea organisms should be valuable because of the high incidence of finding novel compounds. Although it is still an emerging field, there are many successful examples, with new cell signaling inhibitors. In this review, we would like to explain the current view of the cell signaling systems important in diseases, and show the inhibitors found from deep-sea organisms, with their structures and biological activities. These inhibitors are possible candidates for anti-inflammatory agents, modulators of metabolic syndromes, antimicrobial agents, and anticancer agents.
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Affiliation(s)
- Liyan Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
| | - Kazuo Umezawa
- Molecular Target Medicine, School of Medicine, Aichi Medical University, Nagakute 480-1195, Japan
- Correspondence: ; Tel.: +81-561-611-959
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