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Kassem AF, Sabt A, Korycka-Machala M, Shaldam MA, Kawka M, Dziadek B, Kuzioła M, Dziadek J, Batran RZ. New coumarin linked thiazole derivatives as antimycobacterial agents: Design, synthesis, enoyl acyl carrier protein reductase (InhA) inhibition and molecular modeling. Bioorg Chem 2024; 150:107511. [PMID: 38870705 DOI: 10.1016/j.bioorg.2024.107511] [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: 03/28/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Tuberculosis is a global serious problem that imposes major health, economic and social challenges worldwide. The search for new antitubercular drugs is extremely important which could be achieved via inhibition of different druggable targets. Mycobacterium tuberculosis enoyl acyl carrier protein reductase (InhA) enzyme is essential for the survival of M. tuberculosis. In this investigation, a series of coumarin based thiazole derivatives was synthesized relying on a molecular hybridization approach and was assessed against thewild typeMtb H37Rv and its mutant strain (ΔkatG) via inhibiting InhA enzyme. Among the synthesized derivatives, compounds 2b, 3i and 3j were the most potent against wild type M. tuberculosis with MIC values ranging from 6 to 8 μg/ mL and displayed low cytotoxicity towards mouse fibroblasts at concentrations 8-13 times higher than the MIC values. The three hybrids could also inhibit the growth of ΔkatGmutant strain which is resistant to isoniazid (INH). Compounds 2b and 3j were able to inhibit the growth of mycobacteria inside human macrophages, indicating their ability to penetrate human professional phagocytes. The two derivatives significantly suppress mycobacterial biofilm formation by 10-15 %. The promising target compounds were also assessed for their inhibitory effect against InhA and showed potent effectiveness with IC50 values of 0.737 and 1.494 µM, respectively. Molecular docking studies revealed that the tested compounds occupied the active site of InhA in contact with the NAD+ molecule. The 4-phenylcoumarin aromatic system showed binding interactions within the hydrophobic pocket of the active site. Furthermore, H-bond formation and π -π stacking interactions were also recorded for the promising derivatives.
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Affiliation(s)
- Asmaa F Kassem
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Ahmed Sabt
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Małgorzata Korycka-Machala
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland
| | - Moataz A Shaldam
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Malwina Kawka
- Department of Molecular Microbiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Bożena Dziadek
- Department of Molecular Microbiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Magdalena Kuzioła
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland; Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Lodz, Poland
| | - Jarosław Dziadek
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland.
| | - Rasha Z Batran
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt.
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2
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Reis CLB, Campelo TA, Frota CC, Ayala AP, Silva LMA, Rocha MVP, Santiago-Aguiar RSD. The use of green protic ionic liquids in a crystallization of isoniazid: Evaluation of physicochemical and biological properties of drug. Eur J Pharm Biopharm 2024:114345. [PMID: 38823540 DOI: 10.1016/j.ejpb.2024.114345] [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: 03/08/2024] [Revised: 05/06/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
This study evaluated the synthesis of protic ionic liquids (PILs), 2-hydroxy ethylammonium formate (2-HEAF) and 2-hydroxy ethylammonium acetate (2-HEAA), and their applicability in the crystallization process of the active pharmaceutical ingredient isoniazid (INH) as anti-solvent. Isoniazid is an antibiotic used in the treatment of tuberculosis infections, being used as a first-line chemotherapeutic agent against Mycobacterium tuberculosis. Also, this investigation purposed to evaluate how these PILs can influence the habit, solubility, stability, and therapeutic efficiency of the obtained isoniazid crystals. The 2-HEAF and 2-HEAA PILs were easily formed in reactions between ethanolamine and carboxylic acids (formic or acetic acid) and they have no toxicity against Artemia salina. The PILs were able to crystallize isoniazid, influencing the crystal habit and size. The greatest variations in the hydrogen signals of the NH2 and NH groups of the amine and low variations in the chemical shifts of the hydrogens of the cation of the ethanolamine group from 2-HEAA and 2-HEAF, indicating that PILs establish possibly weak interactions with INH. The obtained crystals were more amorphous and showed higher solubility in water than standard INH. Also, these crystals showed therapeutic efficiency with antimycobacterial activity to inhibit the growth of Mycobacterium tuberculosis. The INH:2-HEAF degraded only 5.1 % (w/w), however, INH:2-HEAA degraded 32.8 % (w/w) after 60 days in an accelerated atmosphere. Then, the 2-HEAA and 2-HEAF were able to crystallize isoniazid, being a new application for these PILs and the used PILs influenced the characteristics of isoniazid crystals.
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Affiliation(s)
- Carla Luzia Borges Reis
- Department of Chemical Engineering, Federal University of Ceará, Campus do Pici, Bloco 709, 60440-900 Fortaleza, Ceará, Brazil
| | - Thales Alves Campelo
- Department of Pathology, Federal University of Ceará, Alexandre Baraúna St., 949, Rodolfo Teófilo, 60430-160 Fortaleza, Ceará, Brazil
| | - Cristiane Cunha Frota
- Department of Pathology, Federal University of Ceará, Alexandre Baraúna St., 949, Rodolfo Teófilo, 60430-160 Fortaleza, Ceará, Brazil
| | - Alejandro Pedro Ayala
- Department of Physics, Federal University of Ceará, Mister Hull Ave., Pici, 60440-900 Fortaleza, Ceará, Brazil.
| | | | - Maria Valderez Ponte Rocha
- Department of Chemical Engineering, Federal University of Ceará, Campus do Pici, Bloco 709, 60440-900 Fortaleza, Ceará, Brazil.
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3
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Singh M, Dhanwal A, Verma A, Augustin L, Kumari N, Chakraborti S, Agarwal N, Sriram D, Dey RJ. Discovery of potent antimycobacterial agents targeting lumazine synthase (RibH) of Mycobacterium tuberculosis. Sci Rep 2024; 14:12170. [PMID: 38806590 PMCID: PMC11133327 DOI: 10.1038/s41598-024-63051-6] [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: 07/28/2023] [Accepted: 05/24/2024] [Indexed: 05/30/2024] Open
Abstract
Tuberculosis (TB) continues to be a global health crisis, necessitating urgent interventions to address drug resistance and improve treatment efficacy. In this study, we validate lumazine synthase (RibH), a vital enzyme in the riboflavin biosynthetic pathway, as a potential drug target against Mycobacterium tuberculosis (M. tb) using a CRISPRi-based conditional gene knockdown strategy. We employ a high-throughput molecular docking approach to screen ~ 600,000 compounds targeting RibH. Through in vitro screening of 55 shortlisted compounds, we discover 3 compounds that exhibit potent antimycobacterial activity. These compounds also reduce intracellular burden of M. tb during macrophage infection and prevent the resuscitation of the nutrient-starved persister bacteria. Moreover, these three compounds enhance the bactericidal effect of first-line anti-TB drugs, isoniazid and rifampicin. Corroborating with the in silico predicted high docking scores along with favourable ADME and toxicity profiles, all three compounds demonstrate binding affinity towards purified lumazine synthase enzyme in vitro, in addition these compounds exhibit riboflavin displacement in an in vitro assay with purified lumazine synthase indicative of specificity of these compounds to the active site. Further, treatment of M. tb with these compounds indicate reduced production of flavin adenine dinucleotide (FAD), the ultimate end product of the riboflavin biosynthetic pathway suggesting the action of these drugs on riboflavin biosynthesis. These compounds also show acceptable safety profile in mammalian cells, with a high selective index. Hence, our study validates RibH as an important drug target against M. tb and identifies potent antimycobacterial agents.
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Affiliation(s)
- Monica Singh
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India
| | - Anannya Dhanwal
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India
| | - Arpita Verma
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India
| | - Linus Augustin
- Translational Health Science and Technology Institute, Faridabad, Haryana, 121001, India
| | - Niti Kumari
- National Institute of Animal Biotechnology (NIAB), Hyderabad, Telangana, 500032, India
| | - Soumyananda Chakraborti
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India
- National Institute of Malaria Research, Indian Council of Medical Research (ICMR), New Delhi, 110077, India
| | - Nisheeth Agarwal
- Translational Health Science and Technology Institute, Faridabad, Haryana, 121001, India
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India
| | - Ruchi Jain Dey
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana, 500078, India.
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4
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Rijal R, Gomer RH. Gallein potentiates isoniazid's ability to suppress Mycobacterium tuberculosis growth. Front Microbiol 2024; 15:1369763. [PMID: 38690363 PMCID: PMC11060752 DOI: 10.3389/fmicb.2024.1369763] [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: 01/12/2024] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
Mycobacterium tuberculosis (Mtb), the bacterium that causes tuberculosis (TB), can be difficult to treat because of drug tolerance. Increased intracellular polyphosphate (polyP) in Mtb enhances tolerance to antibiotics, and capsular polyP in Neisseria gonorrhoeae potentiates resistance to antimicrobials. The mechanism by which bacteria utilize polyP to adapt to antimicrobial pressure is not known. In this study, we found that Mtb adapts to the TB frontline antibiotic isoniazid (INH) by enhancing the accumulation of cellular, extracellular, and cell surface polyP. Gallein, a broad-spectrum inhibitor of the polyphosphate kinase that synthesizes polyP, prevents this INH-induced increase in extracellular and cell surface polyP levels. Gallein and INH work synergistically to attenuate Mtb's ability to grow in in vitro culture and within human macrophages. Mtb when exposed to INH, and in the presence of INH, gallein inhibits cell envelope formation in most but not all Mtb cells. Metabolomics indicated that INH or gallein have a modest impact on levels of Mtb metabolites, but when used in combination, they significantly reduce levels of metabolites involved in cell envelope synthesis and amino acid, carbohydrate, and nucleoside metabolism, revealing a synergistic effect. These data suggest that gallein represents a promising avenue to potentiate the treatment of TB.
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Affiliation(s)
- Ramesh Rijal
- Gomer Lab, Department of Biology, Texas A&M University, College Station, TX, United States
| | - Richard H. Gomer
- Gomer Lab, Department of Biology, Texas A&M University, College Station, TX, United States
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5
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Shivakumar, Dinesha P, Udayakumar D. Structure-based drug design and characterization of novel pyrazine hydrazinylidene derivatives with a benzenesulfonate scaffold as noncovalent inhibitors of DprE1 tor tuberculosis treatment. Mol Divers 2024:10.1007/s11030-024-10812-0. [PMID: 38448719 DOI: 10.1007/s11030-024-10812-0] [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: 11/28/2023] [Accepted: 01/13/2024] [Indexed: 03/08/2024]
Abstract
In this study, we present a novel series of (E)-4-((2-(pyrazine-2-carbonyl) hydrazineylidene)methyl)phenyl benzenesulfonate (T1-T8) and 4-((E)-(((Z)-amino(pyrazin-2-yl)methylene)hydrazineylidene)methyl)phenyl benzenesulfonate (T9-T16) derivatives which exert their inhibitory effects on decaprenylphosphoryl-β-D-ribose 2'-epimerase (DprE1) through the formation of hydrogen bonds with the pivotal active site Cys387 residue. Their effectiveness against the M. tuberculosis H37Rv strain was examined and notably, three compounds (namely T4, T7, and T12) exhibited promising antitubercular activity, with a minimum inhibitory concentration (MIC) of 1.56 µg/mL. The target compounds were screened for their antibacterial activity against a range of bacterial strains, encompassing S. aureus, B. subtilis, S. mutans, E. coli, S. typhi, and K. pneumoniae. Additionally, their antifungal efficacy against A. fumigatus and A. niger also was scrutinized. Compounds T6 and T12 demonstrated significant antibacterial activity, while compound T6 exhibited substantial antifungal activity. Importantly, all of these active compounds demonstrated exceedingly low toxicity without any adverse effects on normal cells. To deepen our understanding of these compounds, we have undertaken an in silico analysis encompassing Absorption, Distribution, Metabolism, and Excretion (ADME) considerations. Furthermore, molecular docking analyses against the DprE1 enzyme was conducted and Density-Functional Theory (DFT) studies were employed to elucidate the electronic properties of the compounds, thereby enhancing our understanding of their pharmacological potential.
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Affiliation(s)
- Shivakumar
- Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore, Karnataka, 575025, India
| | - P Dinesha
- Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore, Karnataka, 575025, India
| | - D Udayakumar
- Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore, Karnataka, 575025, India.
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6
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Elbermawi A, Zulfiqar F, Pandey P, Chittiboyina AG, Khan IA, Ali Z. Phytochemical profiling of Striga asiatica; characterisation and anti-microbial assessment of the isolates. Nat Prod Res 2024:1-9. [PMID: 38449104 DOI: 10.1080/14786419.2024.2325588] [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: 12/02/2023] [Accepted: 02/25/2024] [Indexed: 03/08/2024]
Abstract
One undescribed compound, striasinol (1), and twelve previously described compounds were isolated from the aerial parts of Striga asiatica. Structure elucidation of isolated compounds was achieved by the interpretation of 1D and 2D NMR and HRESIMS data. The absolute configuration (1S,5S) of 1 was ascertained based on GIAO NMR calculations, DP4+ probability analysis, and a comparison of the experimental and calculated specific rotation values. The isolated compounds were evaluated for their antimalarial action, and none was found to be effective against the chloroquine-sensitive (D6) or chloroquine-resistant (W2) strains of Plasmodium falciparum. The isolates were found non-toxic to the Vero cell line as well. Subsequent testing of these metabolites for antimicrobial activities against various bacterial and fungal strains (up to 20 µg/mL), revealed that compounds 6 (chryseriol) and 7 (apigenin) showed a reasonable activity towards methicillin-resistant Staphylococcus aureus ATCC 1708 (MRSA), with IC50 values of 5.81 and 3.60 μg/mL, respectively.
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Affiliation(s)
- Ahmed Elbermawi
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
| | - Fazila Zulfiqar
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
| | - Pankaj Pandey
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
| | - Amar G Chittiboyina
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
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7
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Khaleel EF, Sabt A, Korycka-Machala M, Badi RM, Son NT, Ha NX, Hamissa MF, Elsawi AE, Elkaeed EB, Dziadek B, Eldehna WM, Dziadek J. Identification of new anti-mycobacterial agents based on quinoline-isatin hybrids targeting enoyl acyl carrier protein reductase (InhA). Bioorg Chem 2024; 144:107138. [PMID: 38262087 DOI: 10.1016/j.bioorg.2024.107138] [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: 10/22/2023] [Revised: 01/07/2024] [Accepted: 01/14/2024] [Indexed: 01/25/2024]
Abstract
Tuberculosis (TB) is a global issue that poses a significant economic burden as a result of the ongoing emergence of drug-resistant strains. The urgent requirement for the development of novel antitubercular drugs can be addressed by targeting specific enzymes. One such enzyme, Mycobacterium tuberculosis (MTB) enoyl-acyl carrier protein (enoyl-ACP) reductase (InhA), plays a crucial role in the survival of the MTB bacterium. In this research study, a series of hybrid compounds combining quinolone and isatin were synthesized and assessed for their effectiveness against MTB, as well as their ability to inhibit the activity of the InhA enzyme in this bacterium. Among the compounds tested, 7a and 5g exhibited the most potent inhibitory activity against MTB, with minimum inhibitory concentration (MIC) values of 55 and 62.5 µg/mL, respectively. These compounds were further evaluated for their inhibitory effects on InhA and demonstrated significant activity compared to the reference drug Isoniazid (INH), with IC50 values of 0.35 ± 0.01 and 1.56 ± 0.06 µM, respectively. Molecular docking studies investigated the interactions between compounds 7a and 5g and the target enzyme, revealing hydrophobic contacts with important amino acid residues in the active site. To further confirm the stability of the complexes formed by 5g and 7a with the target enzyme, molecular dynamic simulations were employed, which demonstrated that both compounds 7a and 5g undergo minor structural changes and remain nearly stable throughout the simulated process, as assessed through RMSD, RMSF, and Rg values.
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Affiliation(s)
- Eman F Khaleel
- Department of Medical Physiology, College of Medicine, King Khalid University, Asir 61421, Saudi Arabia
| | - Ahmed Sabt
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Center, Dokki, Cairo 12622, Egypt
| | - Malgorzata Korycka-Machala
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland
| | - Rehab Mustafa Badi
- Department of Medical Physiology, College of Medicine, King Khalid University, Asir 61421, Saudi Arabia
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi 10000, Viet Nam
| | - Nguyen Xuan Ha
- Institute of Natural Products Chemistry, VAST, 18 Hoang Quoc Viet, Caugiay, Hanoi 10000, Viet Nam
| | - Mohamed Farouk Hamissa
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Prague, Czech Republic
| | - Ahmed E Elsawi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, P.O. Box 33516, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh 13713, Saudi Arabia.
| | - Bozena Dziadek
- Department of Molecular Microbiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, P.O. Box 33516, Egypt.
| | - Jaroslaw Dziadek
- Laboratory of Genetics and Physiology of Mycobacterium, Institute of Medical Biology of the Polish Academy of Sciences, Lodz, Poland.
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8
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Perveen S, Negi A, Saini S, Gangwar A, Sharma R. Identification of Chemical Scaffolds Targeting Drug-Resistant and Latent Mycobacterium tuberculosis through High-Throughput Whole-Cell Screening. ACS Infect Dis 2024; 10:513-526. [PMID: 38238154 DOI: 10.1021/acsinfecdis.3c00463] [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] [Indexed: 02/10/2024]
Abstract
Identification of structurally unique chemical entities targeting unexplored bacterial targets is a prerequisite to combat increasing drug resistance against Mycobacterium tuberculosis. This study employed a whole-cell screening approach as an initial filter to scrutinize a 10,000-compound chemical library, resulting in the discovery of seven potent compounds with MIC values ranging from 1.56 to 25 μM. These compounds were categorized into four distinct chemical groups. Remarkably, they demonstrated efficacy against drug-resistant and nonreplicating tuberculosis strains, highlighting their effectiveness across different infection states. With a favorable selectivity index (>10), these compounds showed a safe therapeutic range and exhibited potency in an intracellular model of Mtb infection, mimicking the in vivo setup. Combining these identified hits with established anti-TB drugs revealed additive effects with rifampicin, isoniazid, and bedaquiline. Notably, IIIM-IDD-01 exhibited synergy with isoniazid and bedaquiline, likely due to their complementary mechanisms of targeting Mtb. Most potent hits, IIIM-IDD-01 and IIIM-IDD-02, displayed time- and concentration-dependent killing of Mtb. Mechanistic insights were sought through SEM and docking studies, although comprehensive evaluation is ongoing to unravel the hits' specific targets and modes of action. The hits demonstrated favorable pharmacokinetic properties (ADME-Tox) and showed a low risk of adverse effects, along with a predicted high level of oral bioavailability. These promising hits can serve as an initial basis for subsequent medicinal chemistry endeavors aimed at developing a new series of anti-TB agents. Moreover, the study affirms the significance of high-throughput in vitro assays for the TB drug discovery. It also emphasizes the necessity of targeting diverse TB strains to address the heterogeneity of tuberculosis bacteria.
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Affiliation(s)
- Summaya Perveen
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anjali Negi
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sapna Saini
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anjali Gangwar
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rashmi Sharma
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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9
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Eldehna WM, Mahmoud ST, Elshnawey ER, Elsayed ZM, Majrashi TA, El-Ashrey MK, Rashed M, Hemeda LR, Shoun AA, Elkaeed EB, El Hassab MA, Abdel-Aziz MM, Shahin MI. Novel indolinone-tethered benzothiophenes as anti-tubercular agents against MDR/XDR M. tuberculosis: Design, synthesis, biological evaluation and in vivo pharmacokinetic study. Bioorg Chem 2024; 143:107009. [PMID: 38070474 DOI: 10.1016/j.bioorg.2023.107009] [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: 09/14/2023] [Revised: 11/04/2023] [Accepted: 11/27/2023] [Indexed: 01/24/2024]
Abstract
Joining the global effort to eradicate tuberculosis, one of the deadliest infectious killers in the world, we disclose in this paper the design and synthesis of new indolinone-tethered benzothiophene hybrids 6a-i and 7a-i as potential anti-tubercular agents. The MICs were determined in vitro for the synthesized compounds against the sensitive M. tuberculosis strain ATCC 25177. Potent compounds 6b, 6d, 6f, 6h, 7a, 7b, 7d, 7f, 7h and 7i were furtherly assessed versus resistant MDR-TB and XDR-TB. Structure activity relationship investigation of the synthesized compounds was illustrated, accordingly. Superlative potency was unveiled for compound 6h (MIC = 0.48, 1.95 and 7.81 µg/mL for ATCC 25177 sensitive TB strain, resistant MDR-TB and XDR-TB, respectively). Moreover, validated in vivo pharmacokinetic study was performed for the most potent derivative 6h revealing superior pharmacokinetic profile over the reference drug. For further exploration of the anti-tubercular mechanism of action, molecular docking was carried out for the former compound in DprE1 active site as one of the important biological targets of TB. The binding mode and the docking score uncovered exceptional binding when compared to the co-crystallized ligand suggesting that it maybe the underlying target for its outstanding anti-tubercular potency.
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Affiliation(s)
- Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt; Scientific Research and Innovation Support Unit, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt.
| | - Sally Tarek Mahmoud
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elini St., Cairo, 11562, Egypt
| | - Esraa R Elshnawey
- Scientific Research and Innovation Support Unit, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Zainab M Elsayed
- Scientific Research and Innovation Support Unit, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Taghreed A Majrashi
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Asir 61421, Saudi Arabia
| | - Mohamed K El-Ashrey
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elini St., Cairo, 11562, Egypt; Medicinal Chemistry Department, Faculty of Pharmacy, King Salman International University, Ras-Sedr, South Sinai, 46612, Egypt
| | - Mahmoud Rashed
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Loah R Hemeda
- Department of Medicinal Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Aly A Shoun
- Microbiology and Immunology Department, Faculty of Pharmacy, El Saleheya El Gadida University, El Saleheya El Gadida, 44813, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh 13713, Saudi Arabia
| | - Mahmoud A El Hassab
- Medicinal Chemistry Department, Faculty of Pharmacy, King Salman International University, Ras-Sedr, South Sinai, 46612, Egypt
| | - Marwa M Abdel-Aziz
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11651, Egypt
| | - Mai I Shahin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, Abassia, Cairo 11566, Egypt
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10
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Al-Warhi T, Rashad NM, Almahli H, Abdel-Aziz MM, Elsayed ZM, Shahin MI, Eldehna WM. Design and synthesis of benzo[b]thiophene-based hybrids as novel antitubercular agents against MDR/XDR Mycobacterium tuberculosis. Arch Pharm (Weinheim) 2024; 357:e2300529. [PMID: 37946574 DOI: 10.1002/ardp.202300529] [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: 09/22/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023]
Abstract
In an effort to support the global fight against tuberculosis (TB), which is widely recognized as the most lethal infectious disease worldwide, we present the design and synthesis of new benzo[b]thiophene-based hybrids as promising candidates for the management of multidrug-resistant (MDR)/extensively drug-resistant (XDR) Mycobacterium tuberculosis. The isatin motif was incorporated into the target hybrids as it represents a privileged scaffold in antitubercular drug discovery. Since lipophilicity plays a pivotal role in the anti-TB agents' activity, the lipophilicity of the target hybrids was manipulated via the development of two series of N-1 methyl and N-1 benzyl substituted isatins (6a-h and 9a-h, respectively). Screening of the target hybrids was first performed against drug-sensitive M. tuberculosis (ATCC 25177). The structure-activity relationship outputs highlighted that incorporation of 3-unsubstituted benzo[b]thiophene and 5-methoxy isatin moieties was favorable for the antimycobacterial activity. Thereafter, the most potent molecules (6b-h, 9c-e, and 9h) were evaluated against the resistant strains MDR-TB (ATCC 35822) as well as against XDR-TB (RCMB 2674) where they displayed promising activity. To evaluate the safety of the target hybrids, an sulforhodamine B assay was conducted to determine their possible cytotoxic effects on VERO cells.
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Affiliation(s)
- Tarfah Al-Warhi
- Department of Chemistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nermeen M Rashad
- Scientific Research and Innovation Support Unit, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Hadia Almahli
- Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Marwa M Abdel-Aziz
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt
| | - Zainab M Elsayed
- Scientific Research and Innovation Support Unit, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Mai I Shahin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
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11
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Shinde AD, Nandurkar YM, Bhalekar S, Walunj YS, Ugale S, Ahmad I, Patel H, Chavan AP, Mhaske PC. Investigation of new 1,2,3-triazolyl-quinolinyl-propan-2-ol derivatives as potential antimicrobial agents: in vitro and in silico approach. J Biomol Struct Dyn 2024; 42:1191-1207. [PMID: 37254438 DOI: 10.1080/07391102.2023.2217922] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/28/2023] [Indexed: 06/01/2023]
Abstract
A new series of 1-((1-(4-substituted benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-2-(2-substituted quinolin-4-yl)propan-2-ol (9a-x) have been synthesized. The newly synthesized 1,2,3-triazolyl-quinolinyl-propan-2-ol (9a-x) derivatives were screened for in vitro antimicrobial activity against M. tuberculosis H37Rv, E. coli, P. mirabilis, B. subtilis, and S. albus. Most of the compounds showed good to moderate antibacterial activity and all derivatives have shown excellent to good antitubercular activity with MIC 0.8-12.5 μg/mL. To know the plausible mode of action for antibacterial activity the docking study against DNA gyrase from M. tuberculosis and S. aureus was investigated. The compounds have shown significant docking scores in the range of -9.532 to -7.087 and -9.543 to -6.621 Kcal/mol with the DNA gyrase enzyme of S. aureus (PDB ID: 2XCT) and M. tuberculosis (PDB ID: 5BS8), respectively. Against the S. aureus and M. tuberculosis H37Rv strains, the compound 9 l showed good activity with MIC values of 62.5 and 3.33 μM. It also showed significant docking scores in both targets with -8.291 and -8.885 Kcal/mol, respectively. Molecular dynamics was studied to investigate the structural and dynamics transitions at the atomistic level in S. aureus DNA gyrase (2XCT) and M. tuberculosis DNA gyrase (5BS8). The results revealed that the residues in the active binding pockets of the S. aureus and M. tuberculosis DNA gyrase proteins that interacted with compound 9 l remained relatively consistent throughout the MD simulations and thus, reflected the conformation stability of the respective complexes. Thus, the significant antimicrobial activity of derivatives 9a-x recommended that these compounds could assist in the development of lead compounds to treat for bacterial infections.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Abhijit D Shinde
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
| | - Yogesh M Nandurkar
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
- Department of Chemistry, Nowrosjee Wadia College (Affiliated to Savitribai Phule Pune University), Pune, India
| | - Swapnil Bhalekar
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
| | - Yogesh S Walunj
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
- Department of Chemistry, Hutatma Rajguru Mahavidyalaya, Rajgurunagar, India (Affiliated to Savitribai Phule Pune University)
| | - Sandip Ugale
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
| | - Iqrar Ahmad
- Department of Pharmaceutical Chemistry, Prof. Ravindra Nikam College of Pharmacy, Gondur, Dhule, Maharashtra, India
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Harun Patel
- Division of Computer Aided Drug Design, Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Abhijit P Chavan
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
| | - Pravin C Mhaske
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University), Pune, India
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12
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Bhoye MR, Shinde A, Shaikh ALN, Shisode V, Chavan A, Maliwal D, Pissurlenkar RRS, Mhaske PC. New thiazolyl-isoxazole derivatives as potential anti-infective agents: design, synthesis, in vitro and in silico antimicrobial efficacy. J Biomol Struct Dyn 2024:1-15. [PMID: 38258445 DOI: 10.1080/07391102.2024.2306497] [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: 06/22/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024]
Abstract
Antimicrobial resistance threatens the efficacious prevention and treatment of infectious diseases caused by microorganisms. To combat microbial infections, the need for new drug candidates is essential. In this context, the design, synthesis, antimicrobial screening, and in silico study of a new series of 5-aryl-3-(2-arylthiazol-4-yl)isoxazole (9a-t) have been reported. The structure of new compounds was confirmed by spectrometric methods. Compounds 9a-t were evaluated for in vitro antitubercular and antimicrobial activity. Against M. tuberculosis H37Rv, fourteen compounds showed good to excellent antitubercular activity with MIC 2.01-9.80 µM. Compounds 9a, 9b, and 9r showed four-fold more activity than the reference drug isoniazid. Nine compounds, 9a, 9b, 9d, 9e, 9i, 9q, 9r, 9s, and 9t, showed good antibacterial activity against E. coli with MIC 7.8-15.62 µg/mL. Against A. niger, four compounds showed good activity with MIC 31.25 µg/mL. Against C. albicans, all twenty compounds reported excellent to good activity with MIC 7.8-31.25 µg/mL. Compounds 9c-e, 9g-j, and 9q-t showed comparable activity concerning the reference drug fluconazole. The compounds 9a-t were screened for cytotoxicity against 3t3l1 cell lines and found to be less or non-cytotoxic. The in silico study exposed that these compounds displayed high affinity towards the M. tuberculosis targets PanK, DprE1, DHFR, PknA, KasA, and Pks13, and C. albicans targets NMT, CYP51, and CS. The compound 9r was evaluated for structural dynamics and molecular dynamics simulations. The potent antitubercular and antimicrobial activity of 5-aryl-3-(2-arylthiazol-4-yl)isoxazole (9a-t) derivatives has recommended that these compounds could assist in treating microbial infections.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Manish R Bhoye
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Pune, India
- Department of Chemistry, S.N Arts, D.J.M. Commerce and B.N.S. Science College, Sangamner, India
| | - Abhijit Shinde
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Pune, India
| | - Abdul Latif N Shaikh
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Pune, India
- Department of Chemistry, Jijamata College of Science and Arts, Bhende, India
| | - Vilas Shisode
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Pune, India
| | - Abhijit Chavan
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Pune, India
| | - Deepika Maliwal
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, India
| | | | - Pravin C Mhaske
- Post-Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Pune, India
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13
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Fesseha YA, Manayia AH, Liu PC, Su TH, Huang SY, Chiu CW, Cheng CC. Photoreactive silver-containing supramolecular polymers that form self-assembled nanogels for efficient antibacterial treatment. J Colloid Interface Sci 2024; 654:967-978. [PMID: 37898080 DOI: 10.1016/j.jcis.2023.10.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/03/2023] [Accepted: 10/22/2023] [Indexed: 10/30/2023]
Abstract
In this study, an efficient synthetic strategy and potential route to obtain a photo-reactive silver-containing cytosine-functionalized polypropylene glycol polymer (Ag-Cy-PPG) was developed by combining a hydrophilic oligomeric polypropylene glycol (PPG) backbone with dual pH-sensitive/photo-reactive cytosine-silver-cytosine (Cy-Ag-Cy) linkages. The resulting photo-responsive Ag-Cy-PPG holds great promise as a multifunctional biomedical material that generates spherical-like nanogels in water; the nanogels exhibit high antibacterial activity and thus may significantly enhance the efficacy of antibacterial treatment. Due to the formation of photo-dimerized Cy-Ag-Cy cross-linkages after UV irradiation, Ag-Cy-PPG converts into water-soluble cross-linked nanogels that possess a series of interesting chemical and physical properties, such as intense and stable fluorescence behavior, highly sensitive pH-responsive characteristics, on/off switchable phase transition behavior, and well-controlled release of silver ions (Ag+) in mildly acidic aqueous solution. Importantly, antibacterial tests clearly demonstrated that irradiated Ag-Cy-PPG nanogels exhibited strong antibacterial activity at low doses (MIC values of < 50 μg/mL) against gram-positive and gram-negative bacterial pathogens, whereas non-irradiated Ag-Cy-PPG nanogels did not inhibit the viability of bacterial pathogens. These results indicate that irradiated Ag-Cy-PPG nanogels undergo a highly sensitive structural change in the bacterial microenvironment due to their relatively unstable π-conjugated structures (compared to non-irradiated nanogels); this change results in a rapid structural response that promotes intracellular release of Ag+ and induces potent antibacterial ability. Overall, this newly created metallo-supramolecular system may potentially provide an efficient route to dramatically enhance the therapeutic effectiveness of antibacterial treatments.
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Affiliation(s)
- Yohannes Asmare Fesseha
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Abere Habtamu Manayia
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ping-Cheng Liu
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Ting-Hsuan Su
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Sin-Yu Huang
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Chih-Wei Chiu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Chih-Chia Cheng
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; Advanced Membrane Materials Research Center, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
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14
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Rijal R, Gomer RH. Gallein and isoniazid act synergistically to attenuate Mycobacterium tuberculosis growth in human macrophages. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.10.574965. [PMID: 38260681 PMCID: PMC10802476 DOI: 10.1101/2024.01.10.574965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Mycobacterium tuberculosis (Mtb), the bacterium that causes tuberculosis (TB), can be difficult to treat because of drug resistance. Increased intracellular polyphosphate (polyP) in Mtb enhances resistance to antibiotics, and capsular polyP in Neisseria gonorrhoeae potentiates resistance to antimicrobials. The mechanism by which bacteria utilize polyP to adapt to antimicrobial pressure is not known. In this study, we found that Mtb adapts to the TB frontline antibiotic isoniazid (INH) by enhancing the accumulation of cellular, extracellular, and cell surface polyP. Gallein, a broad-spectrum inhibitor of the polyphosphate kinase that synthesizes polyP, prevents this INH-induced increase in extracellular and cell surface polyP levels. Gallein and INH work synergistically to attenuate Mtb's ability to grow in in vitro culture and within human macrophages. Mtb when exposed to INH, and in the presence of INH, gallein inhibits cell envelope formation in most but not all Mtb cells. Metabolomics indicated that INH or gallein have a modest impact on levels of Mtb metabolites, but when used in combination, they significantly reduce levels of metabolites involved in cell envelope synthesis and amino acid, carbohydrate, and nucleoside metabolism, revealing a synergistic effect. These data suggest that gallein represents a promising avenue to potentiate the treatment of TB.
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Affiliation(s)
- Ramesh Rijal
- Department of Biology, Texas A&M University, College Station, TX 77843-3474, USA
| | - Richard H. Gomer
- Department of Biology, Texas A&M University, College Station, TX 77843-3474, USA
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15
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Keller LML, Flattich K, Weber-Ban E. Novel WYL domain-containing transcriptional activator acts in response to genotoxic stress in rapidly growing mycobacteria. Commun Biol 2023; 6:1222. [PMID: 38042942 PMCID: PMC10693628 DOI: 10.1038/s42003-023-05592-6] [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: 07/05/2023] [Accepted: 11/15/2023] [Indexed: 12/04/2023] Open
Abstract
The WYL domain is a nucleotide-sensing module that controls the activity of transcription factors involved in the regulation of DNA damage response and phage defense mechanisms in bacteria. In this study, we investigated a WYL domain-containing transcription factor in Mycobacterium smegmatis that we termed stress-involved WYL domain-containing regulator (SiwR). We found that SiwR controls adjacent genes that belong to the DinB/YfiT-like putative metalloenzymes superfamily by upregulating their expression in response to various genotoxic stress conditions, including upon exposure to H2O2 or the natural antibiotic zeocin. We show that SiwR binds different forms of single-stranded DNA (ssDNA) with high affinity, primarily through its characteristic WYL domain. In combination with complementation studies of a M. smegmatis siwR deletion strain, our findings support a role of the WYL domains as signal-sensing activity switches of WYL domain-containing transcription factors (WYL TFs). Our study provides evidence that WYL TFs are involved in the adaptation of bacteria to changing environments and encountered stress conditions.
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Affiliation(s)
| | - Kim Flattich
- Institute of Molecular Biology and Biophysics, ETH Zurich, 8093, Zurich, Switzerland
| | - Eilika Weber-Ban
- Institute of Molecular Biology and Biophysics, ETH Zurich, 8093, Zurich, Switzerland.
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16
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Bielenica A, Głogowska A, Augustynowicz-Kopeć E, Orzelska-Górka J, Kurpios-Piec D, Struga M. In vitro antimycobacterial activity and interaction profiles of diarylthiourea-copper (II) complexes with antitubercular drugs against Mycobacterium tuberculosis isolates. Tuberculosis (Edinb) 2023; 143:102412. [PMID: 37774599 DOI: 10.1016/j.tube.2023.102412] [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: 07/04/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/01/2023]
Abstract
The activity of several halogenated copper (II) complexes of 4-chloro-3-nitrophenylthiourea derivatives has been tested against Mycobacterium tuberculosis strains and strains of non-tuberculous mycobacteria. The compounds were 2-16 times more potent than current TB-drugs against multidrug-resistant M. tuberculosis 210. The 3,4-dichlorophenylthiourea complex (5) was equipotent to ethambutol (EMB) towards M. tuberculosis H37Rv and 192 strains. All derivatives acted 2-8 times stronger than isoniazid (INH) against nontuberculous isolates. In the presence of chosen coordinates, the 2-64 times reduction of MIC values of standard drugs was denoted. The synergistic interaction was found between the complex 4 and rifampicin (RMP), and additivity of 1-5, 8 in pairs with EMB and/or streptomycin (SM) against M. tuberculosis 800 was established. All coordination compounds in combination with at least one drug showed additive activity towards both H37Rv and 192 isolates. In 67% incidences of indifference, the individual MIC of a drug decreased 2-16-fold. One can conclude that the novel thiourea chelates described here are potent hits for further developments of new agents against tuberculosis.
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Affiliation(s)
- Anna Bielenica
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warsaw, Poland.
| | - Agnieszka Głogowska
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138, Warsaw, Poland
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138, Warsaw, Poland
| | - Jolanta Orzelska-Górka
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Lublin, Poland
| | - Dagmara Kurpios-Piec
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warsaw, Poland
| | - Marta Struga
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warsaw, Poland
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17
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Wang X, Su H, Wallach JB, Wagner JC, Braunecker B, Gardner M, Guinn KM, Klevorn T, Lin K, Liu YJ, Liu Y, Mugahid D, Rodgers M, Sixsmith J, Wakabayashi S, Zhu J, Zimmerman M, Dartois V, Flynn JL, Lin PL, Ehrt S, Fortune SM, Rubin EJ, Schnappinger D. Development of an Engineered Mycobacterium tuberculosis Strain for a Safe and Effective Tuberculosis Human Challenge Model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.19.567569. [PMID: 38014062 PMCID: PMC10680849 DOI: 10.1101/2023.11.19.567569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Human challenge experiments could greatly accelerate the development of a tuberculosis (TB) vaccine. Human challenge for tuberculosis requires a strain that can both replicate in the host and be reliably cleared. To accomplish this, we designed Mycobacterium tuberculosis (Mtb) strains featuring up to three orthogonal kill switches, tightly regulated by exogenous tetracyclines and trimethoprim. The resultant strains displayed immunogenicity and antibiotic susceptibility similar to wild-type Mtb under permissive conditions. In the absence of supplementary exogenous compounds, the strains were rapidly killed in axenic culture, mice and nonhuman primates. Notably, the strain that contained three kill switches had an escape rate of less than 10 -10 per genome per generation and displayed no relapse in a SCID mouse model. Collectively, these findings suggest that this engineered Mtb strain could be a safe and effective candidate for a human challenge model.
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18
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Choudhury QJ, Ambati S, Link CD, Lin X, Lewis ZA, Meagher RB. Dectin-3-targeted antifungal liposomes efficiently bind and kill diverse fungal pathogens. Mol Microbiol 2023; 120:723-739. [PMID: 37800599 PMCID: PMC10823756 DOI: 10.1111/mmi.15174] [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: 02/10/2023] [Revised: 08/22/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023]
Abstract
DectiSomes are anti-infective drug-loaded liposomes targeted to pathogenic cells by pathogen receptors including the Dectins. We have previously used C-type lectin (CTL) pathogen receptors Dectin-1, Dectin-2, and DC-SIGN to target DectiSomes to the extracellular oligoglycans surrounding diverse pathogenic fungi and kill them. Dectin-3 (also known as MCL, CLEC4D) is a CTL pathogen receptor whose known cognate ligands are partly distinct from other CTLs. We expressed and purified a truncated Dectin-3 polypeptide (DEC3) comprised of its carbohydrate recognition domain and stalk region. We prepared amphotericin B (AmB)-loaded pegylated liposomes (AmB-LLs) and coated them with this isoform of Dectin-3 (DEC3-AmB-LLs), and we prepared control liposomes coated with bovine serum albumin (BSA-AmB-LLs). DEC3-AmB-LLs bound to the exopolysaccharide matrices of Candida albicans, Rhizopus delemar (formerly known as R. oryzae), and Cryptococcus neoformans from one to several orders of magnitude more strongly than untargeted AmB-LLs or BSA-AmB-LLs. The data from our quantitative fluorescent binding assays were standardized using a CellProfiler program, AreaPipe, that was developed for this purpose. Consistent with enhanced binding, DEC3-AmB-LLs inhibited and/or killed C. albicans and R. delemar more efficiently than control liposomes and significantly reduced the effective dose of AmB. In conclusion, Dectin-3 targeting has the potential to advance our goal of building pan-antifungal DectiSomes.
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Affiliation(s)
| | - Suresh Ambati
- Department of GeneticsUniversity of GeorgiaAthensGeorgiaUSA
| | - Collin D. Link
- Department of MicrobiologyUniversity of GeorgiaAthensGeorgiaUSA
| | - Xiaorong Lin
- Department of MicrobiologyUniversity of GeorgiaAthensGeorgiaUSA
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19
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Niño-Padilla EI, Espitia C, Velazquez C, Alday E, Silva-Campa E, Burgara-Estrella A, Enciso-Moreno JA, Valenzuela O, Astiazarán-García H, Garibay-Escobar A. Antimycobacterial Precatorin A Flavonoid Displays Antibiofilm Activity against Mycobacterium bovis BCG. ACS OMEGA 2023; 8:40665-40676. [PMID: 37929145 PMCID: PMC10621015 DOI: 10.1021/acsomega.3c05703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023]
Abstract
The aim of this study was to evaluate the potential antibiofilm activity of Rhynchosia precatoria (R. precatoria) compounds over Mycobacterium bovis BCG (M. bovis BCG) as a model for Mycobacterium tuberculosis (Mtb). We evaluated the antibiofilm activity as the ability to both inhibit biofilm formation and disrupt preformed biofilms (bactericidal) of R. precatoria compounds, which have been previously described as being antimycobacterials against Mtb. M. bovis BCG developed air-liquid interface biofilms with surface attachment ability and drug tolerance. Of the R. precatoria extracts and compounds that were tested, precatorin A (PreA) displayed the best biofilm inhibitory activity, as evaluated by biofilm biomass quantification, viable cell count, and confocal and atomic force microscopy procedures. Furthermore, its combination with isoniazid at subinhibitory concentrations inhibited M. bovis BCG biofilm formation. Nonetheless, neither PreA nor the extract showed bactericidal effects. PreA is the R. precatoria compound responsible for biofilm inhibitory activity against M. bovis BCG.
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Affiliation(s)
- Esmeralda Ivonne Niño-Padilla
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Clara Espitia
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, Ciudad de México, México
| | - Carlos Velazquez
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Efrain Alday
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Erika Silva-Campa
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Alexel Burgara-Estrella
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - José Antonio Enciso-Moreno
- Facultad de Química, Universidad Autónoma de Querétaro, Centro Universitario s/n, Cerro de las Campanas, Santiago de Querétaro 76010, Querétaro, México
| | - Olivia Valenzuela
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Humberto Astiazarán-García
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
| | - Adriana Garibay-Escobar
- Departamento de Ciencias Químico Biológicas, Universidad de Sonora, Rosales y Luis Encinas s/n, Hermosillo 83000, Sonora, México
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20
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Elbermawi A, Zulfiqar F, Khan IA, Ali Z. Fatimanols Y and Z: two neo-clerodane diterpenoids from Teucrium yemense. RSC Adv 2023; 13:30264-30268. [PMID: 37868827 PMCID: PMC10587887 DOI: 10.1039/d3ra06083g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/10/2023] [Indexed: 10/24/2023] Open
Abstract
Teucrium yemense (Defl.), a medicinal plant, grows in Yemen and Saudi Arabia and is also referred to as Reehal Fatima. The plant has a long history of use in these regions for the treatment of diabetes, rheumatism, and renal conditions. Phytochemical investigation of the aerial parts of T. yemense yielded two previously undescribed neo-clerodane diterpenoids, namely fatimanols Y and Z (1 and 2) along with the known teulepicephin (3), 8-acetylharpagide (4) and teucardosid (5). Structure elucidation was accomplished from their 1D and 2D NMR, ECD, and MS characteristics as well as by comparing them to related reported compounds. The new molecules expand understanding of secondary metabolites of this genus. Compounds 1-5 did not show antimicrobial activity against various bacterial and fungal strains.
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Affiliation(s)
- Ahmed Elbermawi
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University Mansoura 35516 Egypt +20 10-0481-1533
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University MS 38677 USA
| | - Fazila Zulfiqar
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University MS 38677 USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University MS 38677 USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University MS 38677 USA
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Kerda M, Šlechta P, Jand'ourek O, Konečná K, Hatoková P, Paterová P, Zitko J. N-Pyrazinylhydroxybenzamides as biologically active compounds: a hit-expansion study and antimicrobial evaluation. Future Med Chem 2023; 15:1791-1806. [PMID: 37877255 DOI: 10.4155/fmc-2023-0189] [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] [Indexed: 10/26/2023] Open
Abstract
Background: The development of novel antimicrobial drugs is an essential part of combatting the uprising of antimicrobial resistance. Proper hit-to-lead development is crucially needed. Methods & results: We present a hit-expansion study of N-pyrazinyl- and N-pyridyl-hydroxybenzamides with a comprehensive determination of structure-activity relationships. The antimicrobial screening revealed high selectivity to staphylococci along with antimycobacterial activity with the best value of 6.25 μg/ml against Mycobacterium tuberculosis H37Rv. We proved an inhibition of proteosynthesis and a membrane depolarization of methicillin-resistant Staphylococcus aureus. Conclusion: Our results are a good starting point for further development of new antimicrobial compounds, where the next step would be tuning the potential between relatively nonspecific membrane depolarization effect and specific inhibition of proteosynthesis.
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Affiliation(s)
- Marek Kerda
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 500 05, Czech Republic
| | - Petr Šlechta
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 500 05, Czech Republic
| | - Ondrej Jand'ourek
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 500 05, Czech Republic
| | - Klara Konečná
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 500 05, Czech Republic
| | - Paulina Hatoková
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 500 05, Czech Republic
| | - Pavla Paterová
- University Hospital Hradec Králové, Department of Clinical Microbiology, Hradec Králové, 500 05, Czech Republic
| | - Jan Zitko
- Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 500 05, Czech Republic
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Szulczyk D, Woziński M, Koliński M, Kmiecik S, Głogowska A, Augustynowicz-Kopeć E, Dobrowolski MA, Roszkowski P, Struga M, Ciura K. Menthol- and thymol-based ciprofloxacin derivatives against Mycobacterium tuberculosis: in vitro activity, lipophilicity, and computational studies. Sci Rep 2023; 13:16328. [PMID: 37770610 PMCID: PMC10539350 DOI: 10.1038/s41598-023-43708-4] [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: 07/24/2023] [Accepted: 09/27/2023] [Indexed: 09/30/2023] Open
Abstract
In this work, we investigated the antitubercular properties of Ciprofloxacin derivatives conjugated with menthol and thymol moieties. For the sixteen derivatives, we established minimal inhibitory concentrations (MIC) using isolates of Mycobacterium tuberculosis that were resistant or susceptible to other antibiotics. For the most potent compound 1-cyclopropyl-6-fluoro-7-{4-[6-((1R,2S,5R)-2-isopropyl-5-methylcyclohexyloxy)-6-oxohexyl]piperazin-1-yl}-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (6), we determined fractional inhibitory concentration index (FICI) values to confirm antibacterial susceptibility and synergistic effects with other reference drugs. In addition, chromatographic studies of all the derivatives demonstrated a significant three to four-fold increase in lipophilicity and affinity to phospholipids compared to Ciprofloxacin. Finally, we conducted structure-based studies of the investigated compounds using molecular docking and taking into account protein target mutations associated with fluoroquinolone resistance. In summary, our findings indicate that the investigated compounds possess tuberculostatic properties, with some showing similar or even better activity against resistant strains compared to reference drugs. Increased lipophilicity and affinity to phospholipids of the new derivatives can offer several advantages for new drug candidates, beyond just improved cell membrane penetration. However, further studies are needed to fully understand their safety, efficacy, and mechanism of action.
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Affiliation(s)
- Daniel Szulczyk
- Chair and Department of Biochemistry, The Medical University of Warsaw, 02-097, Warsaw, Poland.
| | - Mateusz Woziński
- Department of Physical Chemistry, Medical University of Gdańsk, 80-416, Gdańsk, Poland
| | - Michał Koliński
- Bioinformatics Laboratory, Mossakowski Medical Research Institute, Polish Academy of Sciences, 5 Pawinskiego St., 02-106, Warsaw, Poland
| | - Sebastian Kmiecik
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, 02-089, Warsaw, Poland
| | - Agnieszka Głogowska
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138, Warsaw, Poland
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138, Warsaw, Poland
| | | | - Piotr Roszkowski
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Marta Struga
- Chair and Department of Biochemistry, The Medical University of Warsaw, 02-097, Warsaw, Poland
| | - Krzesimir Ciura
- Chair and Department of Biochemistry, The Medical University of Warsaw, 02-097, Warsaw, Poland
- QSAR Lab Ltd., Trzy Lipy 3 St., 80-172, Gdańsk, Poland
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23
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Nandikolla A, Khetmalis YM, Venkata Siva Kumar B, Chandu A, Karan Kumar B, Shetye G, Ma R, Murugesan S, Franzblau SG, Chandra Sekhar KVG. Design, synthesis and biological evaluation of phenanthridine amide and 1,2,3-triazole analogues against Mycobacterium tuberculosis. RSC Med Chem 2023; 14:1549-1561. [PMID: 37593576 PMCID: PMC10429663 DOI: 10.1039/d3md00115f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/29/2023] [Indexed: 08/19/2023] Open
Abstract
The phenanthridine core exhibits antitubercular activity, according to reports from the literature. Several 1,2,3-triazole-based heterocyclic compounds are well-known antitubercular agents. A series of twenty-five phenanthridine amide and 1,2,3-triazole derivatives are synthesized and analyzed using ESI-MS, 1HNMR, and 13CNMR on the basis of our earlier findings that phenanthridine and 1,2,3-triazoles shown good antitubercular activity. The synthesized phenanthridine amide and 1,2,3-triazole analogues were tested in vitro against Mycobacterium tuberculosis H37Rv and minimum inhibitory concentration (MIC) values were determined utilizing non-replicating and replicating low-oxygen recovery assay (LORA) and microplate Alamar Blue assay (MABA) methodologies. The phenanthridine amide derivative PA-01 had an MIC of 61.31 μM in MABA and 62.09 μM in the LORA technique, showing intense anti-TB activity. Amongst the phenanthridine triazole derivatives, PT-09, with MICs of 41.47 and 78.75 μM against the tested strain of Mtb in both MABA and LORA was the most active one. The final analogues' drug-likeness is predicted using absorption, distribution, metabolism, excretion, and toxicity (ADMET) studies. The most active compounds PA-01 and PT-09 were further subjected to in silico docking studies. Using the Glide module of Schrodinger, molecular docking analysis was carried out to estimate the plausible binding pattern of PA-01 and PT-09 at the active site of Mycobacterial DNA topoisomerase II (PDB code: 5BS8). Further, molecular dynamics studies of PA-01 and PT-09 were also carried out.
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Affiliation(s)
- Adinarayana Nandikolla
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| | - Yogesh Mahadu Khetmalis
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| | - Boddupalli Venkata Siva Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
| | - Ala Chandu
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Gauri Shetye
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago 833 South Wood Street Chicago IL 60612 USA
| | - Rui Ma
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago 833 South Wood Street Chicago IL 60612 USA
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago 833 South Wood Street Chicago IL 60612 USA
| | - Kondapalli Venkata Gowri Chandra Sekhar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani Hyderabad Campus, Jawahar Nagar, Kapra Mandal Hyderabad - 500078 Telangana India +91 40 66303527
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Khetmalis YM, Sangeetha GP, Chandu A, Swati, Murugesan S, Sharma V, Kumar MM, Kondapalli VG. Design, synthesis and biological evaluation of novel oxindole analogs as antitubercular agents. Future Med Chem 2023; 15:1323-1342. [PMID: 37610851 DOI: 10.4155/fmc-2023-0066] [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] [Indexed: 08/25/2023] Open
Abstract
Aim: To design, synthesize and evaluate oxindole derivatives for antitubercular activity. Methodology: We synthesized the derivatives, confirmed their structures by 1H/13C NMR and mass spectrometry, and evaluated them for antitubercular activity against Mycobacterium tuberculosis H37Rv strain using the microplate alamarBlue™ assay. Results: Among all the synthesized derivatives, OXN-1, -3 and -7 exhibited excellent antitubercular activity (minimum inhibitory concentration [MIC]: 0.78 μg/ml). Compounds with a MIC ≤1.56 were tested for cytotoxicity against human embryonic kidney cells and were found to be relatively nontoxic. Molecular docking analysis of OXN-1, -3 and -7 was performed to determine their binding patterns at the active site of DNA topoisomerase II (PDB-5BS8). In drug combination studies, OXN-1, 3 and 7 showed synergism with isoniazid. Conclusion: The obtained results reveal that oxindole derivatives exhibit potent antitubercular activity.
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Affiliation(s)
- Yogesh M Khetmalis
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad, Telangana, 500078, India
| | - Guruvelli Pv Sangeetha
- College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Ala Chandu
- Department of Pharmacy, Medicinal Chemistry Research Laboratory, Birla Institute of Technology & Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Swati
- Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana, 500078, India
| | - Sankaranarayanan Murugesan
- Department of Pharmacy, Medicinal Chemistry Research Laboratory, Birla Institute of Technology & Science Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India
| | - Vivek Sharma
- Department of Biological Sciences, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana, 500078, India
| | - Muthyala Mk Kumar
- College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, Andhra Pradesh, 530003, India
| | - Venkata Gcs Kondapalli
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad, Telangana, 500078, India
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Lv S, Wang C, Xue K, Wang J, Xiao M, Sun Z, Han L, Shi L, Zhu C. Activated alkyne-enabled turn-on click bioconjugation with cascade signal amplification for ultrafast and high-throughput antibiotic screening. Proc Natl Acad Sci U S A 2023; 120:e2302367120. [PMID: 37364107 PMCID: PMC10318996 DOI: 10.1073/pnas.2302367120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/27/2023] [Indexed: 06/28/2023] Open
Abstract
Antimicrobial susceptibility testing plays a pivotal role in the discovery of new antibiotics. However, the development of simple, sensitive, and rapid assessment approaches remains challenging. Herein, we report an activated alkyne-based cascade signal amplification strategy for ultrafast and high-throughput antibiotic screening. First of all, a novel water-soluble aggregation-induced emission (AIE) luminogen is synthesized, which contains an activated alkyne group to enable fluorescence turn-on and metal-free click bioconjugation under physiological conditions. Taking advantage of the in-house established method for bacterial lysis, a number of clickable biological substances (i.e., bacterial solutes and debris) are released from the bacterial bodies, which remarkably increases the quantity of analytes. By means of the activated alkyne-mediated turn-on click bioconjugation, the system fluorescence signal is significantly amplified due to the increased labeling sites as well as the AIE effect. Such a cascade signal amplification strategy efficiently improves the detection sensitivity and thus enables ultrafast antimicrobial susceptibility assessment. By integration with a microplate reader, this approach is further applied to high-throughput antibiotic screening.
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Affiliation(s)
- Shuyi Lv
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Chao Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Ke Xue
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Jiaxin Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Minghui Xiao
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Zhencheng Sun
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Lei Han
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong266109, China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
| | - Chunlei Zhu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin300071, China
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Nawrot DE, Bouz G, Janďourek O, Konečná K, Paterová P, Bárta P, Novák M, Kučera R, Zemanová J, Forbak M, Korduláková J, Pavliš O, Kubíčková P, Doležal M, Zitko J. Antimycobacterial pyridine carboxamides: From design to in vivo activity. Eur J Med Chem 2023; 258:115617. [PMID: 37423128 DOI: 10.1016/j.ejmech.2023.115617] [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: 04/24/2023] [Revised: 06/29/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023]
Abstract
Tuberculosis is the number one killer of infectious diseases caused by a single microbe, namely Mycobacterium tuberculosis (Mtb). The success rate of curing this infection is decreasing due to emerging antimicrobial resistance. Therefore, novel treatments are urgently needed. As an attempt to develop new antituberculars effective against both drugs-sensitive and drug-resistant Mtb, we report the synthesis of a novel series inspired by combining fragments from the first-line agents isoniazid and pyrazinamide (series I) and isoniazid with the second-line agent 4-aminosalicylic acid (series II). We identified compound 10c from series II with selective, potent in vitro antimycobacterial activity against both drug-sensitive and drug-resistant Mtb H37Rv strains with no in vitro or in vivo cytotoxicity. In the murine model of tuberculosis, compound 10c caused a statistically significant decrease in colony-forming units (CFU) in spleen. Despite having a 4-aminosalicylic acid fragment in its structure, biochemical studies showed that compound 10c does not directly affect the folate pathway but rather methionine metabolism. In silico simulations indicated the possibility of binding to mycobacterial methionine-tRNA synthetase. Metabolic study in human liver microsomes revealed that compound 10c does not have any known toxic metabolites and has a half-life of 630 min, overcoming the main drawbacks of isoniazid (toxic metabolites) and 4-aminosalicylic acid (short half-life).
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Affiliation(s)
- Daria Elżbieta Nawrot
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Ghada Bouz
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Ondřej Janďourek
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Klára Konečná
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Pavla Paterová
- Department of Clinical Microbiology, University Hospital, Sokolská 581, 500 05, Hradec, Králové, Czech Republic.
| | - Pavel Bárta
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Martin Novák
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic; Biomedical Research Center, University Hospital Hradec Kralove, Sokolská 581, 50005, Hradec Králové, Czech Republic.
| | - Radim Kučera
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Júlia Zemanová
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská Dolina, Ilkovičova 6, 84215, Bratislava, Slovakia.
| | - Martin Forbak
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská Dolina, Ilkovičova 6, 84215, Bratislava, Slovakia.
| | - Jana Korduláková
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská Dolina, Ilkovičova 6, 84215, Bratislava, Slovakia.
| | - Oto Pavliš
- Military Health Institute, Military Medical Agency, Tychonova 1, 160 01, Prague 6, Czech Republic.
| | - Pavla Kubíčková
- Military Health Institute, Military Medical Agency, Tychonova 1, 160 01, Prague 6, Czech Republic.
| | - Martin Doležal
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
| | - Jan Zitko
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 50005, Hradec Králové, Czech Republic.
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27
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Nandurkar Y, Bhoye MR, Maliwal D, Pissurlenkar RRS, Chavan A, Katade S, Mhaske PC. Synthesis, biological screening and in silico studies of new N-phenyl-4-(1,3-diaryl-1H-pyrazol-4-yl)thiazol-2-amine derivatives as potential antifungal and antitubercular agents. Eur J Med Chem 2023; 258:115548. [PMID: 37307623 DOI: 10.1016/j.ejmech.2023.115548] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
A new series of N-aryl-4-(1,3-diaryl-1H-pyrazol-4-yl)thiazol-2-amine, (8a-x) have been synthesized by a cyclo-condensation reaction of 2-bromo-1-(1,3-diphenyl-1H-pyrazol-4-yl)ethanone (6a-f) with N-aryl thiourea, (7a-d). The structure of newly synthesized N-aryl-4-(1,3-diaryl-1H-pyrazol-4-yl)thiazol-2-amine, (8a-x) derivatives was analyzed by 1H NMR, 13C NMR and Mass spectral analysis. The compounds 8a-x were screened for in vitro antimicrobial activity against Escherichia coli, Proteus mirabilis, Bacillus subtilis, Staphylococcus aureus, Candida albicans and Aspergillus niger. and antitubercular activity against M. tuberculosis H37Rv strain. Among the twenty-four pyrazolyl-thiazole derivatives, six compounds 8a, 8b, 8j, 8n, 8o and 8s showed good activity against S. aureus. Against A. niger, all synthesized derivatives showed good antifungal activity. Fifteen pyrazolyl-thiazole derivatives 8a, 8f, 8g, 8h, 8j, 8k, 8n, 8o, 8p, 8q, 8r, 8s, 8t, 8w and 8x showed good antitubercular activity with MIC 1.80-7.34 μM (0.8-3.12 μg/mL), these derivatives have showed more activity than the drugs isoniazid and ethambutol. The active compounds were further screened for cytotoxicity activity against the mouse embryonic fibroblast cells (3t3l1) cell lines at 12.5 and 25 μg/mL concentrations and found less or non-cytotoxicity. To know the plausible mode of action, the synthesized pyrazolyl-thiazole derivatives were studied for pharmacokinetics, toxicity profiles and binding interactions along with an in-depth analysis of structural dynamics and integrity using prolonged molecular dynamics (MD) simulation. The compounds have shown significant docking scores in the range of -7.98 to -5.52 and -9.44 to -7.2 kcal/mol with the M. tuberculosis enoyl reductase (M. tb. InhA) and C. albicans sterol 14-α demethylase (C. ab. CYP51), respectively. Thus, the significant antifungal and antitubercular activity of N-aryl-4-(1,3-diaryl-1H-pyrazol-4-yl)thiazol-2-amine, (8a-x) derivatives incited that, these scaffolds could assist in the development of lead compounds to treat fungal and antitubercular infections.
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Affiliation(s)
- Yogesh Nandurkar
- Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, Pune, 411 030, India(1); Department of Chemistry, Nowrosjee Wadia College, Pune, India(1)
| | - Manish R Bhoye
- Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, Pune, 411 030, India(1); Department of Chemistry, S.N Arts, D.J.M. Commerce and B.N.S. Science College, Sangamner, District Ahmednagar, India(1)
| | - Deepika Maliwal
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, 400019, India
| | | | - Abhijit Chavan
- Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, Pune, 411 030, India(1)
| | - Sushma Katade
- Department of Chemistry, Modern College of Arts, Science and Commerce, Ganeshkhind, Pune, 411016, India(1)
| | - Pravin C Mhaske
- Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, Pune, 411 030, India(1).
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28
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Struga M, Roszkowski P, Bielenica A, Otto-Ślusarczyk D, Stępień K, Stefańska J, Zabost A, Augustynowicz-Kopeć E, Koliński M, Kmiecik S, Myslovska A, Wrzosek M. N-Acylated Ciprofloxacin Derivatives: Synthesis and In Vitro Biological Evaluation as Antibacterial and Anticancer Agents. ACS OMEGA 2023; 8:18663-18684. [PMID: 37273589 PMCID: PMC10233829 DOI: 10.1021/acsomega.3c00554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/09/2023] [Indexed: 06/06/2023]
Abstract
A novel series of N-acylated ciprofloxacin (CP) conjugates 1-21 were synthesized and screened as potential antimicrobial agents. Conjugates 1 and 2 were 1.25-10-fold more potent than CP toward all Staphylococci (minimal inhibitory concentration 0.05-0.4 μg/mL). Most of the chloro- (3-7), bromo- (8-11), and CF3-alkanoyl (14-16) derivatives expressed higher or comparable activity to CP against selected Gram-positive strains. A few CP analogues (5, 10, and 11) were also more effective toward the chosen clinical Gram-negative rods. Conjugates 5, 10, and 11 considerably influenced the phases of the bacterial growth cycle over 18 h. Additionally, compounds 2, 4-7, 9-12, and 21 exerted stronger tuberculostatic action against three Mycobacterium tuberculosis isolates than the first-line antitubercular drugs. Amides 1, 2, 5, 6, 10, and 11 targeted gyrase and topoisomerase IV at 2.7-10.0 μg/mL, which suggests a mechanism of antibacterial action related to CP. These findings were confirmed by molecular docking studies. In addition, compounds 3 and 15 showed high antiproliferative activities against prostate PC3 cells (IC50 2.02-4.8 μM), up to 6.5-2.75 stronger than cisplatin. They almost completely reduced the growth and proliferation rates in these cells, without a cytotoxic action against normal HaCaT cell lines. Furthermore, derivatives 3 and 21 induced apoptosis/necrosis in PC3 cells, probably by increasing the intracellular ROS amount, as well as they diminished the IL-6 level in tumor cells.
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Affiliation(s)
- Marta Struga
- Chair
and Department of Biochemistry, Medical
University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Roszkowski
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Anna Bielenica
- Chair
and Department of Biochemistry, Medical
University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland
| | - Dagmara Otto-Ślusarczyk
- Chair
and Department of Biochemistry, Medical
University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland
| | - Karolina Stępień
- Department
of Pharmaceutical Microbiology, Centre for Preclinical Research, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Joanna Stefańska
- Department
of Pharmaceutical Microbiology, Centre for Preclinical Research, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Anna Zabost
- Department
of Microbiology, National Tuberculosis and
Lung Diseases Research Institute, 01-138 Warsaw, Poland
| | - Ewa Augustynowicz-Kopeć
- Department
of Microbiology, National Tuberculosis and
Lung Diseases Research Institute, 01-138 Warsaw, Poland
| | - Michał Koliński
- Bioinformatics
Laboratory, Mossakowski Medical Research Institute, Polish Academy of Sciences, 5 Pawinskiego Street, 02-106 Warsaw, Poland
| | - Sebastian Kmiecik
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, 02-089 Warsaw, Poland
| | - Alina Myslovska
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Małgorzata Wrzosek
- Department
of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland
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29
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Abo Kamer AM, Amer NM, Abdelmegeed AA, El Maghraby GM, Gamaleldin NM. Surfactant nanovesicles for augmented antibacterial activity against carbapenemase resistant enterobacteriaceae and extended spectrum beta-lactamases producing bacteria: in vitro and in vivo evaluation. BMC Microbiol 2023; 23:73. [PMID: 36927445 PMCID: PMC10018850 DOI: 10.1186/s12866-023-02812-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
The ubiquitous emergence of bacterial resistance is a challenging problem in infectious diseases treatment. Recently, new research lines employed nano-drug delivery systems to enhance antibacterial activity of the existing antibiotics. Accordingly, the objective of this study is to optimize surfactant nanovesicles to improve the antimicrobial effect of meropenem, ertapenem and tigecycline against Carbapenemase Resistant Enterobacteriaceae (CRE) and extended spectrum beta-lactamases producing bacteria (ESBL). Klebsiella pneumoniae and Escherichia coli were used as the test organisms. In vivo and in vitro evaluations were conducted to prove the efficacy of niosome-encapsulated drugs formulations. The results revealed that surfactant vesicles were able to reduce the MIC values of the tested drugs by nine-fold change compared to their free forms. Scanning Electron Microscope (SEM) showed possible adhesion/fusion of the vesicles encapsulated drugs on the bacterial cells compared to its solution. In vivo investigations using animal skin model confirmed the superiority of nanovesicles drug encapsulation regarding both wound size and histopathological examination. Wound surface area was reduced from 24.6mm2 in absence of drug to reach 13.9, and 6.2mm2 in presence of ertapenem solution or niosomes, respectively. Nanovesicular formulations can be considered as effective drug delivery systems that can diminish bacterial resistance against β-lactams antibiotics.
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Affiliation(s)
- Amal M. Abo Kamer
- grid.412258.80000 0000 9477 7793Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Noha M. Amer
- grid.412258.80000 0000 9477 7793Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | | | - Gamal M. El Maghraby
- grid.412258.80000 0000 9477 7793Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Noha M. Gamaleldin
- grid.440862.c0000 0004 0377 5514Department of Microbiology, Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk, Cairo 11837 Egypt
- grid.440862.c0000 0004 0377 5514The Center for Drug Research and Development (CDRD), The British University in Egypt (BUE), El-Sherouk, Cairo Egypt
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30
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Kamat V, Poojary B, Puthran D, Das VB, Kumar BK, Sankaranarayan M, Shetye G, Ma R, Franzblau SG, Nayak SP. Synthesis, antimycobacterial, cytotoxicity, anti-inflammatory, in silico studies and molecular dynamics of pyrazole-embedded thiazolidin-4-one hybrids. Arch Pharm (Weinheim) 2023; 356:e2200444. [PMID: 36461683 DOI: 10.1002/ardp.202200444] [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: 08/23/2022] [Revised: 10/25/2022] [Accepted: 11/10/2022] [Indexed: 12/04/2022]
Abstract
In the present investigation, we devolved and synthesized a new series of pyrazole-embedded thiazolidin-4-one derivatives (9a-p) with the goal to produce promising antitubercular leads. The in vitro antimycobacterial activity of the synthesized compounds was tested against replicating and nonreplicating Mtb H37Rv strains. With MIC ranging from 3.03 to 22.55 µg/ml, five compounds (9a, 9c, 9d, 9e, and 9f) emerged as promising antitubercular agents. The active molecules were nontoxic to normal Vero cells. All the synthesized compounds were evaluated for in vitro anti-inflammatory studies. Compounds 9a, 9b, 9c, 9h, and 9i exhibited excellent anti-inflammatory efficacy. Docking study was performed to understand the binding pattern of the significantly active compound 9a with 1P44.
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Affiliation(s)
- Vinuta Kamat
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Dakshina Kannada, Karnataka, India
| | - Boja Poojary
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Dakshina Kannada, Karnataka, India
| | - Divyaraj Puthran
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Dakshina Kannada, Karnataka, India
| | - Vishwa B Das
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Dakshina Kannada, Karnataka, India
| | - Banoth K Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, India
| | - Murugesan Sankaranarayan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani, India
| | - Gauri Shetye
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Rui Ma
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Suresh P Nayak
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Dakshina Kannada, Karnataka, India
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31
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Gavadia R, Rasgania J, Basil MV, Chauhan V, Kumar S, Jakhar K. Synthesis of Isoniazid analogs with Promising Antituberculosis Activity and Bioavailability: Biological Evaluation and Computational Studies. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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32
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Shinde A, Thakare PP, Nandurkar Y, Chavan A, Shaikh ALN, Mhaske PC. Synthesis of 2-(6-substituted quinolin-4-yl)-1-alkoxypropan-2-ol as potential antimycobacterial agents. CHEMICKE ZVESTI 2023; 77:3791-3802. [PMID: 37252671 PMCID: PMC9961301 DOI: 10.1007/s11696-023-02741-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/17/2023] [Indexed: 02/27/2023]
Abstract
Resistance to antibiotic drugs has directed global health security to a life-threatening situation due to mycobacterial infections. In search of a new potent antimycobacterial, a series of (±) 2-(6-substituted quinolin-4-yl)-1-alkoxypropan-2-ol (8a-p) have been synthesized. The structures of the newly synthesized derivatives were characterized by spectrometric analysis. Derivatives 8a-p were evaluated for antitubercular activity against Mycobacterium tuberculosis H37Rv (ATCC 25177), antibacterial activity against Proteus mirabilis (NCIM2388), Escherichia coli (NCIM 2065), Bacillus subtilis (NCIM2063) Staphylococcus albus (NCIM 2178) and antifungal activity against Candida albicans (NCIM 3100), Aspergillus niger (ATCC 504). Thirteen 2-(6-substituted quinolin-4-yl)-1-alkoxypropan-2-ol (8a-m) derivatives reported moderate to good antitubercular activity against M. tuberculosis H37Rv with MIC 9.2-106.4 μM. Compounds 8a and 8h showed comparable activity with respect to the standard drug pyrazinamide. The active compounds screened for cytotoxicity activity against L929 mouse fibroblast cells showed no significant cytotoxic activity. Compounds 8c, 8d, 8e, 8g, 8k, and 8o displayed good activity against S. albus. Compounds 8c and 8n showed good activity against P. mirabilis and E. coli, respectively. The potential antimycobacterial activities imposed that the 2-(6-substituted quinolin-4-yl)-1-alkoxypropan-2-ol derivatives could lead to compounds that could treat tuberculosis. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11696-023-02741-3.
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Affiliation(s)
- Abhijit Shinde
- Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College (Affiliated to, Savitribai Phule Pune University), Tilak Road, Pune, 411030 India
| | - Prashant P. Thakare
- Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College (Affiliated to, Savitribai Phule Pune University), Tilak Road, Pune, 411030 India
| | - Yogesh Nandurkar
- Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College (Affiliated to, Savitribai Phule Pune University), Tilak Road, Pune, 411030 India
- Department of Chemistry, N. Wadia College (Affiliated to Savitribai Phule Pune University), Pune, India
| | - Abhijit Chavan
- Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College (Affiliated to, Savitribai Phule Pune University), Tilak Road, Pune, 411030 India
| | - Abdul Latif N. Shaikh
- Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College (Affiliated to, Savitribai Phule Pune University), Tilak Road, Pune, 411030 India
- Department of Chemistry, Jijamata College of Science and Arts (Affiliated to Savitribai Phule Pune University), Bhende, Ahmednagar, India
| | - Pravin C. Mhaske
- Department of Chemistry, S. P. Mandali’s Sir Parashurambhau College (Affiliated to, Savitribai Phule Pune University), Tilak Road, Pune, 411030 India
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33
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Design, Synthesis and Antimicrobial Evaluation of New N-(1-Hydroxy-1,3-dihydrobenzo[ c][1,2]oxaborol-6-yl)(hetero)aryl-2-carboxamides as Potential Inhibitors of Mycobacterial Leucyl-tRNA Synthetase. Int J Mol Sci 2023; 24:ijms24032951. [PMID: 36769275 PMCID: PMC9917560 DOI: 10.3390/ijms24032951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Tuberculosis remains a serious killer among infectious diseases due to its incidence, mortality, and occurrence of resistant mycobacterial strains. The challenge to discover new antimycobacterial agents forced us to prepare a series of N-(1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-6-yl)(hetero)aryl-2-carboxamides 1-19 via the acylation of 6-aminobenzo[c][1,2]oxaborol-1(3H)-ol with various activated (hetero)arylcarboxylic acids. These novel compounds have been tested in vitro against a panel of clinically important fungi and bacteria, including mycobacteria. Some of the compounds inhibited the growth of mycobacteria in the range of micromolar concentrations and retained this activity also against multidrug-resistant clinical isolates. Half the maximal inhibitory concentrations against the HepG2 cell line indicated an acceptable toxicological profile. No growth inhibition of other bacteria and fungi demonstrated selectivity of the compounds against mycobacteria. The structure-activity relationships have been derived and supported with a molecular docking study, which confirmed a selectivity toward the potential target leucyl-tRNA synthetase without an impact on the human enzyme. The presented compounds can become important materials in antimycobacterial research.
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34
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Patil NP, Alegaon SG, Parchure PS, Kavalapure RS. Inverse Molecular Docking and Evaluation of Antitubercular Activities of Some Quinoline Based Heterocyclic Compounds. CHEMISTRY AFRICA 2023. [DOI: 10.1007/s42250-022-00516-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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35
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El-Shoukrofy MS, Atta A, Fahmy S, Sriram D, Mahran MA, Labouta IM. New tetrahydropyrimidine-1,2,3-triazole clubbed compounds: Antitubercular activity and Thymidine Monophosphate Kinase (TMPKmt) inhibition. Bioorg Chem 2023; 131:106312. [PMID: 36528922 DOI: 10.1016/j.bioorg.2022.106312] [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: 09/16/2022] [Revised: 11/15/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
Two series of new tetrahydropyrimidine (THPM)-1,2,3-triazole clubbed compounds were designed, synthesized and screened for their antitubercular (anti-TB) activity against M. tuberculosis H37Rv strain using microplate alamar blue assay (MABA). The most active compounds 5c, 5d, 5e and 5f were further examined for their cytotoxicity against the growth of RAW 264.7 mouse macrophage cells using MTT assay. The four compounds showed safety profiles better than or comparable to that of ethambutol (EMB). These compounds were evaluated for their inhibition activity against mycobacterium tuberculosis thymidine monophosphate kinase (TMPKmt). Compounds 5c and 5e were the most potent exhibiting comparable inhibition activity to that of the natural substrate deoxythymidine monophosphate (dTMP). An in silico study was performed including docking of the most active compounds 5c and 5e into the TMPKmt (PDB: ID 1G3U) binding pocket in addition to prediction of their physicochemical and pharmacokinetic properties to explore the overall activity of these anti-TB candidates. Compounds 5c and 5e are promising anti-TB agents and TMPKmt inhibitors with acceptable oral bioavailability, physicochemical and pharmacokinetic properties.
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Affiliation(s)
- Mai S El-Shoukrofy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt.
| | - Amal Atta
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Salwa Fahmy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Dharmarajan Sriram
- Medicinal Chemistry Research Laboratory, Pharmacy Group, Birla Institute of Technology and Science, Pilani 33031, India
| | - Mona A Mahran
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Ibrahim M Labouta
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
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36
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Bouz G, Šlechta P, Jand'ourek O, Konečná K, Paterová P, Bárta P, Novák M, Kučera R, Dal NJK, Fenaroli F, Zemanová J, Forbak M, Korduláková J, Pavliš O, Kubíčková P, Doležal M, Zitko J. Hybridization Approach Toward Novel Antituberculars: Design, Synthesis, and Biological Evaluation of Compounds Combining Pyrazinamide and 4-Aminosalicylic Acid. ACS Infect Dis 2023; 9:79-96. [PMID: 36577009 DOI: 10.1021/acsinfecdis.2c00433] [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: 12/29/2022]
Abstract
Apart from the SARS-CoV-2 virus, tuberculosis remains the leading cause of death from a single infectious agent according to the World Health Organization. As part of our long-term research, we prepared a series of hybrid compounds combining pyrazinamide, a first-line antitubercular agent, and 4-aminosalicylic acid (PAS), a second-line agent. Compound 11 was found to be the most potent, with a broad spectrum of antimycobacterial activity and selectivity toward mycobacterial strains over other pathogens. It also retained its in vitro activity against multiple-drug-resistant mycobacterial strains. Several structural modifications were attempted to improve the in vitro antimycobacterial activity. The δ-lactone form of compound 11 (11') had more potent in vitro antimycobacterial activity against Mycobacterium tuberculosis H37Rv. Compound 11 was advanced for in vivo studies, where it was proved to be nontoxic in Galleria mellonella and zebrafish models, and it reduced the number of colony-forming units in spleens in the murine model of tuberculosis. Biochemical studies showed that compound 11 targets mycobacterial dihydrofolate reductases (DHFR). An in silico docking study combined with molecular dynamics identified a viable binding mode of compound 11 in mycobacterial DHFR. The lactone 11' opens in human plasma to its parent compound 11 (t1/2 = 21.4 min). Compound 11 was metabolized by human liver fraction by slow hydrolysis of the amidic bond (t1/2 = 187 min) to yield PAS and its starting 6-chloropyrazinoic acid. The long t1/2 of compound 11 overcomes the main drawback of PAS (short t1/2 necessitating frequent administration of high doses of PAS).
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Affiliation(s)
- Ghada Bouz
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Petr Šlechta
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Ondřej Jand'ourek
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Klára Konečná
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Pavla Paterová
- Department of Clinical Microbiology, University Hospital, Sokolská 581, Hradec Králové 500 05, Czech Republic
| | - Pavel Bárta
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Martin Novák
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic.,Biomedical Research Center, University Hospital Hradec Kralove, Sokolská 581, Hradec Králové 500 05, Czech Republic
| | - Radim Kučera
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | | | - Federico Fenaroli
- Department of Biosciences, University of Oslo, Blindernveien 31, Oslo 0371, Norway
| | - Júlia Zemanová
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská Dolina, Ilkovičova 6, Bratislava 84215, Slovakia
| | - Martin Forbak
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská Dolina, Ilkovičova 6, Bratislava 84215, Slovakia
| | - Jana Korduláková
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská Dolina, Ilkovičova 6, Bratislava 84215, Slovakia
| | - Oto Pavliš
- Military Health Institute, Military Medical Agency, Tychonova 1, Prague 6 160 01, Czech Republic
| | - Pavla Kubíčková
- Military Health Institute, Military Medical Agency, Tychonova 1, Prague 6 160 01, Czech Republic
| | - Martin Doležal
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
| | - Jan Zitko
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, Hradec Králové 500 05, Czech Republic
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37
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Ziembicka D, Gobis K, Szczesio M, Olczak A, Augustynowicz-Kopeć E, Głogowska A, Korona-Głowniak I, Bojanowski K. Synthesis and Structure-Activity Relationship of 2,6-Disubstituted Thiosemicarbazone Derivatives of Pyridine as Potential Antituberculosis Agents. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16010448. [PMID: 36614785 PMCID: PMC9822072 DOI: 10.3390/ma16010448] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 05/27/2023]
Abstract
In this study, six new 2,6-disubstituted thiosemicarbazone derivatives of pyridine were synthesized (4−9), and their tuberculostatic activity was evaluated. All of them showed two- to eightfold higher activity (minimum inhibitory concentration (MIC) 0.5−4 µg/mL) against the resistant strain compared with the reference drug. Compounds 5 and 7, which contained the most basic substituents—pyrrolidine and piperidine—in their structure, strongly inhibited the growth of the standard strain (MIC 2 µg/mL). Furthermore, the same derivatives exhibited activity comparable to that of the reference drugs against some types of Gram-positive bacteria (MIC 0.49 µg/mL) and showed no cytotoxicity (IC50 > 50 µg/mL) in HaCaT cells. The zwitterionic structure of each compound was determined using X-ray crystallography. Absorption, distribution, metabolism, and excretion analyses showed that all compounds are good drug candidates. Thus, compounds 5 and 7 were identified as leading structures for further research on antituberculosis drugs with extended effects.
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Affiliation(s)
- Dagmara Ziembicka
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 107 Gen. Hallera Ave, 80-416 Gdansk, Poland
| | - Katarzyna Gobis
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, 107 Gen. Hallera Ave, 80-416 Gdansk, Poland
| | - Małgorzata Szczesio
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Żeromskiego St, 90-924 Lodz, Poland
| | - Andrzej Olczak
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Żeromskiego St, 90-924 Lodz, Poland
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, Institute of Tuberculosis and Pulmonary Diseases, 26 Płocka St, 01-138 Warsaw, Poland
| | - Agnieszka Głogowska
- Department of Microbiology, Institute of Tuberculosis and Pulmonary Diseases, 26 Płocka St, 01-138 Warsaw, Poland
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University of Lublin, 1 Chodźki St, 20-093 Lublin, Poland
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38
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Qureshi KA, Azam F, Fatmi MQ, Imtiaz M, Prajapati DK, Rai PK, Jaremko M, Emwas AH, Elhassan GO. In vitro and in silico evaluations of actinomycin X 2and actinomycin D as potent anti-tuberculosis agents. PeerJ 2023; 11:e14502. [PMID: 36935926 PMCID: PMC10022501 DOI: 10.7717/peerj.14502] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 11/10/2022] [Indexed: 03/11/2023] Open
Abstract
Background Multidrug-resistant tuberculosis (MDR-TB) is one of the world's most devastating contagious diseases and is caused by the MDR-Mycobacterium tuberculosis (MDR-Mtb) bacteria. It is therefore essential to identify novel anti-TB drug candidates and target proteins to treat MDR-TB. Here, in vitro and in silico studies were used to investigate the anti-TB potential of two newly sourced actinomycins, actinomycin-X2 (act-X2) and actinomycin-D (act-D), from the Streptomyces smyrnaeus strain UKAQ_23 (isolated from the Jubail industrial city of Saudi Arabia). Methods The anti-TB activity of the isolated actinomycins was assessed in vitro using the Mtb H37Ra, Mycobacterium bovis (BCG), and Mtb H37Rv bacterial strains, using the Microplate Alamar Blue Assay (MABA) method. In silico molecular docking studies were conducted using sixteen anti-TB drug target proteins using the AutoDock Vina 1.1.2 tool. The molecular dynamics (MD) simulations for both actinomycins were then performed with the most suitable target proteins, using the GROningen MAchine For Chemical Simulations (GROMACS) simulation software (GROMACS 2020.4), with the Chemistry at HARvard Macromolecular Mechanics 36m (CHARMM36m) forcefield for proteins and the CHARMM General Force Field (CGenFF) for ligands. Results In vitro results for the Mtb H37Ra, BCG, and Mtb H37Rv strains showed that act-X2 had minimum inhibitory concentration (MIC) values of 1.56 ± 0.0, 1.56 ± 0.0, and 2.64 ± 0.07 µg/mL and act-D had MIC values of 1.56 ± 0.0, 1.56 ± 0.0, and 1.80 ± 0.24 µg/mL respectively. The in silico molecular docking results showed that protein kinase PknB was the preferred target for both actinomycins, while KasA and pantothenate synthetase were the least preferred targets for act-X2and act-D respectively. The molecular dynamics (MD) results demonstrated that act-X2 and act-D remained stable inside the binding region of PknB throughout the simulation period. The MM/GBSA (Molecular Mechanics/Generalized Born Surface Area) binding energy calculations showed that act-X2 was more potent than act-D. Conclusion In conclusion, our results suggest that both actinomycins X2 and D are highly potent anti-TB drug candidates. We show that act-X2is better able to antagonistically interact with the protein kinase PknB target than act-D, and thus has more potential as a new anti-TB drug candidate.
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Affiliation(s)
- Kamal Ahmad Qureshi
- Department of Pharmaceutics, Unaizah College of Pharmacy, Qassim University, Unaizah, Al-Qassim, Saudi Arabia
| | - Faizul Azam
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Al-Qassim, Saudi Arabia
| | | | - Mahrukh Imtiaz
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Dinesh Kumar Prajapati
- Department of Biotechnology, Faculty of Biosciences, Invertis University, Bareilly, Uttar Pradesh, India
| | - Pankaj Kumar Rai
- Department of Biotechnology, Faculty of Biosciences, Invertis University, Bareilly, Uttar Pradesh, India
| | - 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), Thuwal, Jeddah, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Gamal Osman Elhassan
- Department of Pharmaceutics, Unaizah College of Pharmacy, Qassim University, Unaizah, Al-Qassim, Saudi Arabia
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Shinde A, Ugale SR, Nandurkar Y, Modak M, Chavan AP, Mhaske PC. Synthesis, Characterization, and Antimicrobial Activity Screening of Some Novel 3-(2-(3-(Substituted benzyloxy)oxetan-3-yl)-3-fluorophenoxy)-8-fluoro-2-methylquinoline Derivatives as Potential Antimycobacterial Agents. ACS OMEGA 2022; 7:47096-47107. [PMID: 36570236 PMCID: PMC9773968 DOI: 10.1021/acsomega.2c06245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Microbial infections remain a grave threat to global health security due to increasing antibiotic resistance. The coronavirus pandemic has increased the risk of microbial infection. To combat these infections, the search for new therapeutic agents is in high demand. A series of new 3-(2-(3-(substituted benzyloxy)oxetan-3-yl)-3-fluorophenoxy)-8-fluoro-2-methylquinoline (9a-i) derivatives have been synthesized. The structure of synthesized compounds was analyzed by spectroscopic methods. The newly synthesized oxetanyl-quinoline derivatives were evaluated for in vitro antibacterial activity against Escherichia coli (NCIM 2574), Proteus mirabilis (NCIM 2388), Bacillus subtilis (NCIM 2063), Staphylococcus albus (NCIM 2178), and in vitro antifungal activity against Aspergillus niger (ATCC 504) and Candida albicans (NCIM 3100). Six oxetanyl-quinoline derivatives 9a, 9b, 9c, 9d, 9e, and 9h have shown good antibacterial activity against P. mirabilis with MIC 31.25-62.5 μM, 3-(((3-(2-fluoro-6-((8-fluoro-2-methylquinolin-3-yl)oxy)phenyl)oxetan-3-yl)oxy)methyl)benzonitrile (9f) reporting comparable activity against P. mirabilis with respect to the standard drug streptomycin. Compound 9a also showed good activity against B. subtilis with MIC 31.25 μM. The eight compounds 9a, 9b, 9d, 9e, 9f, 9g, 9h, and 9i have shown good antifungal activity against A. niger. The synthesized compounds were also screened for antimycobacterial activity against Mycobacterium tuberculosis H37Rv by MTT assay. Among the nine derivatives, compounds 9b, 9c, 9d, 9f, 9g, 9h, and 9i showed excellent antimycobacterial activity with MIC 3.41-12.23 μM, and two derivatives showed good activity with MIC 27.29-57.73 μM. All the derivatives were further evaluated for cytotoxicity against the Vero cell line and were found to be nontoxic. The in silico study of compounds 9a-i was performed against ATP synthase (PDB ID: 4V1F) and most of the compounds showed the stable and significant binding to ATP synthase, confirming their plausible mode of action as ATP synthase inhibitors. Thus, the significant antimycobacterial activity of 3-(2-(3-(substituted benzyloxy)oxetan-3-yl)-3-fluorophenoxy)-8-fluoro-2-methylquinoline derivatives has suggested that the oxatenyl-quinoline compounds could assist in the development of lead compounds to treat mycobacterial infections.
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Affiliation(s)
- Abhijit Shinde
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College (Affiliated to Savitribai
Phule Pune University), Tilak Road, Pune 411 030, India
| | - Sandip R. Ugale
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College (Affiliated to Savitribai
Phule Pune University), Tilak Road, Pune 411 030, India
| | - Yogesh Nandurkar
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College (Affiliated to Savitribai
Phule Pune University), Tilak Road, Pune 411 030, India
- Department
of Chemistry, Nowrosjee Wadia College (Affiliated to Savitribai Phule Pune University), Pune 411 001, India
| | - Manisha Modak
- Department
of Zoology, S. P. Mandali’s Sir Parashurambhau
College (Affiliated to Savitribai Phule Pune University), Tilak Road, Pune 411 030, India
| | - Abhijit P. Chavan
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College (Affiliated to Savitribai
Phule Pune University), Tilak Road, Pune 411 030, India
| | - Pravin C. Mhaske
- Post-Graduate
Department of Chemistry, S. P. Mandali’s
Sir Parashurambhau College (Affiliated to Savitribai
Phule Pune University), Tilak Road, Pune 411 030, India
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Akki M, Reddy DS, Katagi KS, Kumar A, Devarajegowda HC, Kumari M S, Babagond V, Joshi SD. Coumarin Hydrazone Oxime Scaffolds as Potent Anti‐tubercular Agents: Synthesis, X‐ray crystal and Molecular Docking Studies. ChemistrySelect 2022. [DOI: 10.1002/slct.202203260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mahesh Akki
- Research Centre Department of Chemistry Karnatak University's Karnatak Science College Dharwad 580001 Karnataka India
| | - Dinesh S. Reddy
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Jakkasandra Post Bangalore 562112 Karnataka India
| | - Kariyappa S. Katagi
- Research Centre Department of Chemistry Karnatak University's Karnatak Science College Dharwad 580001 Karnataka India
| | - Amit Kumar
- Centre for Nano and Material Sciences Jain University Jain Global Campus, Jakkasandra Post Bangalore 562112 Karnataka India
| | | | - Sunitha Kumari M
- Department of Physics Yuvaraja's College University of Mysore Mysuru 570005 Karnataka India
| | - Vardhaman Babagond
- Research Centre Department of Chemistry Karnatak University's Karnatak Science College Dharwad 580001 Karnataka India
| | - Shrinivas D. Joshi
- Novel Drug Design and Discovery Laboratory Department of Pharmaceutical Chemistry S.E.T's College of Pharmacy Sangolli Rayanna Nagar Dharwad 580 002 Karnataka India
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Abdelrahman MA, Almahli H, Al-Warhi T, Majrashi TA, Abdel-Aziz MM, Eldehna WM, Said MA. Development of Novel Isatin-Tethered Quinolines as Anti-Tubercular Agents against Multi and Extensively Drug-Resistant Mycobacterium tuberculosis. Molecules 2022; 27:molecules27248807. [PMID: 36557937 PMCID: PMC9781264 DOI: 10.3390/molecules27248807] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
We describe the design and synthesis of two isatin-tethered quinolines series (Q6a-h and Q8a-h), in connection with our research interest in developing novel isatin-bearing anti-tubercular candidates. In a previous study, a series of small molecules bearing a quinoline-3-carbohydrazone moiety was developed as anti-tubercular agents, and compound IV disclosed the highest potency with MIC value equal to 6.24 µg/mL. In the current work, we adopted the bioisosteric replacement approach to replace the 3,4,5-trimethoxy-benzylidene moiety in the lead compound IV with the isatin motif, a privileged scaffold in the TB drug discovery, to furnish the first series of target molecules Q6a-h. Thereafter, the isatin motif was N-substituted with either a methyl or benzyl group to furnish the second series Q8a-h. All of the designed quinoilne-isatin conjugates Q6a-h and Q8a-h were synthesized and then biologically assessed for anti-tubercular actions towards drug-susceptible, MDR, and XDR strains. Superiorly, the N-benzyl-bearing compound Q8b possessed the best activities against the examined M. tuberculosis strains with MICs equal 0.06, 0.24, and 1.95 µg/mL, respectively.
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Affiliation(s)
- Mohamed A. Abdelrahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City 11829, Egypt
- Correspondence: (M.A.A.); (W.M.E.)
| | - Hadia Almahli
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, UK
| | - Tarfah Al-Warhi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Taghreed A. Majrashi
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 61441, Saudi Arabia
| | - Marwa M. Abdel-Aziz
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11651, Egypt
| | - Wagdy M. Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
- School of Biotechnology, Badr University in Cairo, Cairo 11829, Egypt
- Correspondence: (M.A.A.); (W.M.E.)
| | - Mohamed A. Said
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City 11829, Egypt
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Drzewiecka-Antonik A, Struga M, Głogowska A, Augustynowicz-Kopec E, Dobrzyńska K, Chrzanowska A, Wolska A, Rejmak P, Klepka MT, Wrzosek M, Bielenica A. Synthesis, Structural Characterization and Biological Activity Evaluation of Novel Cu(II) Complexes with 3-(trifluoromethyl)phenylthiourea Derivatives. Int J Mol Sci 2022; 23:ijms232415694. [PMID: 36555333 PMCID: PMC9779606 DOI: 10.3390/ijms232415694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Copper complexes with 1,3-disubstituted thiourea derivatives, all containing 3-(trifluoromethyl)phenyl tail and 1-alkyl/halogen-phenyl substituent, were synthesized. The experimental spectroscopic studies and theoretical calculation revealed that two ligands coordinate to Cu(II) in a bidentate fashion via thiocarbonyl S and deprotonated N atoms of thiourea moiety. Such monomers are characteristic of alkylphenylthiourea complexes, whereas the formation of a sandwich-type dimer is observed for halogeno derivatives. For the first time, the structural identifications of CuN2S2-based complexes using experimental and theoretical X-ray absorption near edge structure are demonstrated. The dimeric halogeno derivatives showed higher antimicrobial activity in comparison with alkylphenylthiourea complexes. The Cu(II) complex of 1-(4-chloro-3-nitrophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea was active against 19 strains of methicillin-resistant Staphylococci (MIC = 2 µg/mL). This derivative acted as a dual inhibitor of DNA gyrase and topoisomerase IV isolated from Staphylococcus aureus. Additionally, complexes of halogenphenylthiourea strongly inhibited the growth of mycobacteria isolated from tuberculosis patients, even fourfold stronger than the reference isoniazid. The complexes exerted weak to moderate antitumor activity (towards SW480, SW620, and PC3) being non-toxic towards normal HaCaT cells.
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Affiliation(s)
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
| | - Agnieszka Głogowska
- Institute of Tuberculosis and Lung Diseases, Microbiology Department, Plocka 26, PL-01138 Warsaw, Poland
| | - Ewa Augustynowicz-Kopec
- Institute of Tuberculosis and Lung Diseases, Microbiology Department, Plocka 26, PL-01138 Warsaw, Poland
| | - Katarzyna Dobrzyńska
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Warsaw Medical University, 3 Oczki Street, PL-02007 Warsaw, Poland
| | - Alicja Chrzanowska
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
| | - Anna Wolska
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Paweł Rejmak
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Marcin T. Klepka
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
| | - Małgorzata Wrzosek
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
| | - Anna Bielenica
- Chair and Department of Biochemistry, Medical University of Warsaw, Banacha 1, PL-02097 Warsaw, Poland
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Managutti PB, Mangasuli SN, Malaganvi SS. "Synthesis, crystal structure, electronic structure, and anti-tubercular properties of two new coumarin derivatives bearing theophylline moiety”. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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44
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García-García Á, de Julián-Ortiz JV, Gálvez J, Font D, Ayats C, Guna Serrano MDR, Muñoz-Collado C, Borrás R, Villalgordo JM. Similarity-Based Virtual Screening to Find Antituberculosis Agents Based on Novel Scaffolds: Design, Syntheses and Pharmacological Assays. Int J Mol Sci 2022; 23:ijms232315057. [PMID: 36499384 PMCID: PMC9737236 DOI: 10.3390/ijms232315057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/02/2022] [Accepted: 11/22/2022] [Indexed: 12/04/2022] Open
Abstract
A method to identify molecular scaffolds potentially active against the Mycobacterium tuberculosis complex (MTBC) is developed. A set of structurally heterogeneous agents against MTBC was used to obtain a mathematical model based on topological descriptors. This model was statistically validated through a Leave-n-Out test. It successfully discriminated between active or inactive compounds over 86% in database sets. It was also useful to select new potential antituberculosis compounds in external databases. The selection of new substituted pyrimidines, pyrimidones and triazolo[1,5-a]pyrimidines was particularly interesting because these structures could provide new scaffolds in this field. The seven selected candidates were synthesized and six of them showed activity in vitro.
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Affiliation(s)
- Ángela García-García
- Unidad de Investigación de Diseño de Fármacos y Conectividad Molecular, Departamento de Química Física, Facultad de Farmacia, Universitat de València, 46100 Burjassot, Spain
| | - Jesus Vicente de Julián-Ortiz
- Unidad de Investigación de Diseño de Fármacos y Conectividad Molecular, Departamento de Química Física, Facultad de Farmacia, Universitat de València, 46100 Burjassot, Spain
- Correspondence:
| | - Jorge Gálvez
- Unidad de Investigación de Diseño de Fármacos y Conectividad Molecular, Departamento de Química Física, Facultad de Farmacia, Universitat de València, 46100 Burjassot, Spain
| | - David Font
- Departamento de Química, Universitat de Girona, 17071 Girona, Spain
| | - Carles Ayats
- Departamento de Química, Universitat de Girona, 17071 Girona, Spain
| | - María del Remedio Guna Serrano
- Unidad de Investigación de Diseño de Fármacos y Conectividad Molecular, Departamento de Química Física, Facultad de Farmacia, Universitat de València, 46100 Burjassot, Spain
- Departamento de Microbiología, Facultad de Medicina y Odontología, Universitat de València, 46010 València, Spain
| | - Carlos Muñoz-Collado
- Departamento de Microbiología, Facultad de Medicina y Odontología, Universitat de València, 46010 València, Spain
| | - Rafael Borrás
- Departamento de Microbiología, Facultad de Medicina y Odontología, Universitat de València, 46010 València, Spain
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Korycka-Machała M, Kawka M, Lach J, Płocińska R, Bekier A, Dziadek B, Brzostek A, Płociński P, Strapagiel D, Szczesio M, Gobis K, Dziadek J. 2,4-Disubstituted pyridine derivatives are effective against intracellular and biofilm-forming tubercle bacilli. Front Pharmacol 2022; 13:1004632. [DOI: 10.3389/fphar.2022.1004632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/26/2022] [Indexed: 11/12/2022] Open
Abstract
It was recently reported that 4-substituted picolinohydrazonamides carrying hydrophilic cyclic amines, such as morpholine and pyrrolidine, at the end of their thiosemicarbazide chain have potent antimycobacterial activity in vitro at concentrations below 1 μg/ml. Here, two selected compounds, 2,4-disubstituted pyridine derivatives 11 and 15, revealed significant bactericidal activity against Mycobacterium tuberculosis localized intracellularly within human macrophages, as well as against biofilm-forming tubercle bacilli. Mutants were selected that were resistant to the investigated compounds at an efficiency similar to that identified in the presence of the first line antituberculosis drug rifampicin. The resistant mutants were viable in the presence of the tested compounds exclusively on solid media. Genome-wide sequencing of the mutants selected in the presence of compound 11 revealed the accumulation of nonsynonymous mutations in the mmpR5 gene encoding a transcriptional repressor of the MmpS5-MmpL5 efflux pump, whose upregulation has been associated with bedaquiline resistance. The depletion of MmpR5 in wild-type M. tuberculosis using CRISPR–Cas9 technology increased the resistance of this strain to compound 11. Mass spectrometry-based proteomics (LC–MS/MS) of wild-type tubercle bacilli growing in subinhibitory concentrations of compounds 11 or 15 revealed 15 overproduced proteins not detectable in the control cells, including virulence-related proteins.
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Akki M, Reddy DS, Katagi KS, Kumar A, Devarajegowda HC, M SK, Babagond V, Mane S, Joshi SD. Synthesis of coumarin-thioether conjugates as potential anti-tubercular agents: Their molecular docking and X-ray crystal studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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47
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Abdelaziz OA, Othman DIA, Abdel-Aziz MM, Badr SMI, Eisa HM. Novel diaryl ether derivatives as InhA inhibitors: Design, synthesis and antimycobacterial activity. Bioorg Chem 2022; 129:106125. [PMID: 36126606 DOI: 10.1016/j.bioorg.2022.106125] [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: 07/07/2022] [Revised: 08/16/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022]
Abstract
A new series of triclosan (TCL)-mimicking diaryl ether derivatives 7-25 were synthesized and evaluated as inhibitors of enoyl acyl carrier protein reductase InhA enzyme. In addition, these derivatives were screened as inhibitors of drug-susceptible (DS), multidrug-resistant (MDR), and extensive drug-resistant (XDR) Mycobacterium tuberculosis (MTB) strains. Most compounds exihibted superior anti-TB activities and improved ClogP compared to TCL as a standard drug. The present work has led to the identification of compounds 14, 19 and 24 which possess remarkable activities against DS, MDR and XDR MTB strains with MIC values of 1.95, 3.9 and 15.63 µg/ml, respectively for compound 14, 1.95, 3.9 and 7.81 µg/ml, respectively for compound 19 and 0.98, 1.95 and 3.9 µg/ml, respectively for compound 24. Most compounds did not exhibit toxicity to HePG2 normal cell line. Compounds 14, 19 and 24, presenting the best MIC values, were further evaluated as inhibitors of InhA enzyme. They showed high binding affinities in the micromolar range with IC50 values of 1.33, 0.6, and 0.29 µM for compounds 14, 19, and 24, respectively. Furthermore, molecular docking approach was utilized to understand the difference in bioactivities between the new compounds. In particular, the results revealed strong binding interactions and high docking scores of compounds 14, 19 and 24, which could correlate with their high activities. Mainly, the molecular modelling study of compound 24 provides an excellent platform for understanding the molecular mechanism regarding InhA inhibition. Thus, compound 24 could be a lead compound for future development of new antitubercular drugs.
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Affiliation(s)
- Ola A Abdelaziz
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Dina I A Othman
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Marwa M Abdel-Aziz
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt
| | - Sahar M I Badr
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Hassan M Eisa
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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Wijesundera SA, Jayawardana KW, Yan M. Trehalose-Modified Silver Nanoparticles as Antibacterial Agents with Reduced Cytotoxicity and Enhanced Uptake by Mycobacteria. ACS APPLIED NANO MATERIALS 2022; 5:10704-10714. [PMID: 36247932 PMCID: PMC9555008 DOI: 10.1021/acsanm.2c02047] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Silver nanoparticles (AgNPs) are potent antimicrobial agents, but their utility is limited due to their relatively high cytotoxicity. In this work, we used trehalose as the ligand to reduce the cytotoxicity of AgNPs without affecting their antimicrobial activities. Trehalose is a disaccharide that is unique to mycobacteria. We showed that trehalose-functionalized AgNPs, AgNP-Tre, drastically increased the viability of A549 cells, especially at high concentrations, for example, from 4% for AgNPs to 67% for AgNP-Tre at 64 μg/mL. The trehalose ligand slowed down the release of silver, and the amount of silver released from AgNP-Tre was less than half of that from AgNPs in the culture medium. Intriguingly, while the maltose (Mal) or tri(ethylene glycol) (TEG) ligand reduced the antibacterial activity of AgNPs against M. smegmatis (minimal inhibitory concentration (MIC) of AgNP-Mal and AgNP-TEG: 4 μg/mL for 7 nm AgNPs), the activity of AgNP-Tre was similar to that of AgNPs (MIC of AgNP-Tre: 1 μg/mL for 7 nm AgNPs). Uptake experiments revealed that the intracellular concentration of AgNP-Tre was 87 and 114% higher than those of AuNP-Mal and AgNP-TEG, respectively. The increased uptake was attributed to the enhanced interactions of AgNP-Tre with mycobacteria promoted by the trehalose ligand.
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Affiliation(s)
- Samurdhi A Wijesundera
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Kalana W Jayawardana
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Mingdi Yan
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
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Silva D, Lopes MVC, Petrovski Ž, Santos MM, Santos JP, Yamada-Ogatta SF, Bispo MLF, de Souza MVN, Duarte ARC, Lourenço MCS, Gonçalves RSB, Branco LC. Novel Organic Salts Based on Mefloquine: Synthesis, Solubility, Permeability, and In Vitro Activity against Mycobacterium tuberculosis. Molecules 2022; 27:molecules27165167. [PMID: 36014405 PMCID: PMC9412322 DOI: 10.3390/molecules27165167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/21/2022] Open
Abstract
The development of novel pharmaceutical tools to efficiently tackle tuberculosis is the order of the day due to the rapid development of resistant strains of Mycobacterium tuberculosis. Herein, we report novel potential formulations of a repurposed drug, the antimalarial mefloquine (MFL), which was combined with organic anions as chemical adjuvants. Eight mefloquine organic salts were obtained by ion metathesis reaction between mefloquine hydrochloride ([MFLH][Cl]) and several organic acid sodium salts in high yields. One of the salts, mefloquine mesylate ([MFLH][MsO]), presented increased water solubility in comparison with [MFLH][Cl]. Moreover, all salts with the exception of mefloquine docusate ([MFLH][AOT]) showed improved permeability and diffusion through synthetic membranes. Finally, in vitro activity studies against Mycobacterium tuberculosis revealed that these ionic formulations exhibited up to 1.5-times lower MIC values when compared with [MFLH][Cl], particularly mefloquine camphorsulfonates ([MFLH][(1R)-CSA], [MFLH][(1S)-CSA]) and mefloquine HEPES ([MFLH][HEPES]).
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Affiliation(s)
- Dário Silva
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Márcio V. C. Lopes
- Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos 149, Cidade Universitaria, Rio de Janeiro 21941-909, Brazil
| | - Željko Petrovski
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Miguel M. Santos
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Jussevania P. Santos
- Departamento de Microbiologia, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid (PR 445), Km 380, Campus Universitário, Londrina 86057-970, Brazil
| | - Sueli F. Yamada-Ogatta
- Departamento de Microbiologia, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid (PR 445), Km 380, Campus Universitário, Londrina 86057-970, Brazil
| | - Marcelle L. F. Bispo
- Departamento de Microbiologia, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid (PR 445), Km 380, Campus Universitário, Londrina 86057-970, Brazil
| | - Marcus V. N. de Souza
- FioCruz-Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos-Far-Manguinhos, Rua Sizenando Nabuco, 100, Manguinhos, Rio de Janeiro 21041-250, Brazil
| | - Ana Rita C. Duarte
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
| | - Maria C. S. Lourenço
- Instituto de Pesquisas Clínica Evandro Chagas—IPEC, Av. Brasil, 4365, Manguinhos, Rio de Janeiro 21040-900, Brazil
| | - Raoni Schroeder B. Gonçalves
- Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos 149, Cidade Universitaria, Rio de Janeiro 21941-909, Brazil
- Correspondence: (R.S.B.G.); (L.C.B.)
| | - Luis C. Branco
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, 2829-516 Caparica, Portugal
- Correspondence: (R.S.B.G.); (L.C.B.)
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Zulfiqar F, Pandey P, Tripathi SK, Ali Z, Chittiboyina AG, Khan IA. Benzoylcyclopropane Derivatives from Hypoxis hemerocallidea Corms. PLANTA MEDICA 2022; 88:685-692. [PMID: 34331304 DOI: 10.1055/a-1540-4978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Two monobenzoylcyclopropane (hypoxhemerol A (1: ) and hypoxhemeroloside G (2: )) and three dibenzoylcyclopropane (hypoxhemerol B (3: ), hypoxhemeroloside H (4: ), and hypoxhemeroloside I (5: )) derivatives were isolated from the hydro-alcoholic extract of Hypoxis hemerocallidea corms. This is the first instance where benzoylcyclopropane analogs were isolated from any natural source. Structure elucidation was mainly based on 1D- and 2D-NMR and HRESIMS data. The absolute configuration (2R, 4R) of 1: was determined via NOESY NMR and experimental and calculated ECD data analyses. Compounds 1: -5: and 11 recently reported metabolites (hypoxoside, obtuside A, interjectin, acuminoside, curcapicycloside, and hypoxhemerolosides A - F) were screened for in vitro antimicrobial activity against various bacterial and fungal strains. Curcapicycloside and acuminoside exhibited antibacterial activity against Escherichia coli with 78 and 79% inhibition at 20 µg/mL, respectively. Hypoxhemeroloside A showed mild antifungal activity against Cryptococcus neoformans with 63% inhibition at 20 µg/mL.
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Affiliation(s)
- Fazila Zulfiqar
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Pankaj Pandey
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Siddharth K Tripathi
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Amar G Chittiboyina
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS, USA
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