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de Luna Rocha TC, Dos Santos Lima MJ, Nunes do Nascimento JL, Ferreira de Oliveira J, de Oliveira Silva E, Barbosa Dos Santos VH, de Lima Aires A, de Albuquerque Wanderley Sales V, Atanazio Rosa T, Rolim Neto PJ, Camelo Pessôa de Azevedo Albuquerque M, Alves de Lima MDC, Ferreira da Silva RM. Development and evaluation of the in vitro schistosomicidal activity of solid dispersions based on 2-(-5-bromo-1-H-indole-3-yl-methylene)-N-(naphthalene-1-ylhydrazine-carbothiamide. Exp Parasitol 2024; 256:108626. [PMID: 37972848 DOI: 10.1016/j.exppara.2023.108626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 09/11/2023] [Accepted: 09/25/2023] [Indexed: 11/19/2023]
Abstract
Among all the neglected diseases, schistosomiasis is considered the second most important parasitic infection after malaria. Praziquantel is the most widely used drug for this disease, but its exclusive use may result in the development of drug-resistant schistosomiasis. To increase the control of the disease, new drugs have been developed as alternative treatments, among them 2-(-5-bromo-1-h-indole-3-yl-methylene)-N-(naphthalene-1-ylhydrazine-carbothiamide (LQIT/LT-50), which showed promising schistosomicidal activity in nonclinical studies. However, LQIT/LT-50 presents low solubility in water, resulting in reduced bioavailability. To overcome this solubility problem, the present study aimed to develop LQIT/LT-50 solid dispersions for the treatment of schistosomiasis. Solid dispersions were prepared through the solvent method using Soluplus©, polyethylene glycol (PEG) or polyvinylpyrrolidone (PVP K-30) as hydrophilic carriers. The formulations with the best results in the compatibility tests, aqueous solubility and preliminary stability studies have undergone solubility tests and physicochemical characterizations by Fourier-transform infrared spectroscopy (FTIR), x-ray diffractometry (XRD), exploratory differential calorimetry (DSC), thermogravimetry (TG) and Raman spectroscopy. Finally, the schistosomicidal activity was evaluated in vitro. The phycochemical analyzes showed that when using PVP K-30, there was an interaction between the PVP K-30 and LQIT/LT-50, proving the successful development of the solid dispersion. Furthermore, an increase in the solubility of the new system was observed (LQIT/LT-50:PVP K-30) in addition to the improvement in the in vitro shistosomidal activity at 1:4 (w/w) molar ratio (i.e., 20% drug loading) when compared to LQIT/LT-50 alone. The development of the LQIT/LT-50:PVP K-30 1:4 solid dispersion is encouraging for the future development of new pharmaceutical solid formulations, aiming the schistosomicidal treatment.
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Affiliation(s)
| | | | | | - Jamerson Ferreira de Oliveira
- Institute of Health Sciences, University of International Integration of Afro-Brazilian Lusophony, Redenção, Ceará, Brazil
| | | | | | - André de Lima Aires
- Department of Tropical Medicine, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Talita Atanazio Rosa
- Department of Pharmacy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Pedro José Rolim Neto
- Department of Pharmacy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
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Walczak-Nowicka L, Biernasiuk A, Ziemichód W, Karczmarzyk Z, Kwaśnik M, Kozyra P, Wysocki W, Stenzel-Bembenek A, Kowalczuk D, Herbet M, Pitucha M. N-Substituted 2-(Benzenosulfonyl)-1-Carbotioamide Derivatives Exert Antimicrobial and Cytotoxic Effects via Aldehyde Dehydrogenase Pathway: Synthesis, In Silico and In Vitro Studies. Pharmaceuticals (Basel) 2023; 16:1706. [PMID: 38139832 PMCID: PMC10747733 DOI: 10.3390/ph16121706] [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: 11/09/2023] [Revised: 11/30/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
A series of N-Substituted 2-(benzenosulfonyl)-1-carbotioamide derivatives (WZ1-WZ4) were synthesized and characterized using spectral methods. A comprehensive activity study was performed for each compound. All compounds were tested for antibacterial activity. Moreover, in silico studies were carried out to determine the anticancer potential of the designed WZ1-WZ4 ligands. Based on molecular docking, aldehyde dehydrogenase was selected as a molecular target. The obtained data were compared with experimental data in vitro tests. Novel hybrids of the thiosemicarbazide scaffold and sulfonyl groups may have promising anticancer activity via the aldehyde dehydrogenase pathway. The best candidate for further studies appears to be WZ2, due to its superior selectivity in comparison to the other tested compounds.
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Affiliation(s)
- Lucja Walczak-Nowicka
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (L.W.-N.); (M.H.)
| | - Anna Biernasiuk
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland;
| | - Wojciech Ziemichód
- Independent Radiopharmacy Unit, Faculty of Pharmacy, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland; (W.Z.); (P.K.)
| | - Zbigniew Karczmarzyk
- Institute of Chemistry, University of Siedlce, 3 Maja 54, 08-110 Siedlce, Poland; (Z.K.)
| | - Mateusz Kwaśnik
- Department of Molecular Biology, Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynów 1J/4.03, 20-708 Lublin, Poland;
| | - Paweł Kozyra
- Independent Radiopharmacy Unit, Faculty of Pharmacy, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland; (W.Z.); (P.K.)
| | - Waldemar Wysocki
- Institute of Chemistry, University of Siedlce, 3 Maja 54, 08-110 Siedlce, Poland; (Z.K.)
| | - Agnieszka Stenzel-Bembenek
- Department of Biochemistry and Molecular Biology, Faculty of Medical Sciences, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland
| | - Dorota Kowalczuk
- Department of Medicinal Chemistry, Faculty of Pharmacy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland
| | - Mariola Herbet
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (L.W.-N.); (M.H.)
| | - Monika Pitucha
- Independent Radiopharmacy Unit, Faculty of Pharmacy, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland; (W.Z.); (P.K.)
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Nandakumar V, Sundarasamy A, Adhigaman K, Ramasamy SS, Paulpandi M, Kodiveri Muthukaliannan G, Narayanasamy A, Thangaraj S. Anti-proliferative activity of nitroquinolone fused acylhydrazones as non-small cell human lung cancer agents. RSC Med Chem 2023; 14:1331-1343. [PMID: 37484570 PMCID: PMC10357927 DOI: 10.1039/d3md00165b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/16/2023] [Indexed: 07/25/2023] Open
Abstract
A new series of 8-nitroquinolone-based aromatic heterocyclic acyl hydrazones have been synthesised and characterised through various spectroscopic techniques. They were theoretically examined for molecular docking with various proteins related to the apoptosis of the non-small cell lung cancer cell line A549. The results indicate that the possible modes of interaction of all the synthesised compounds are compatible for use as anti-proliferative drugs. Also, the drug-likeness of the compounds was examined through theoretical ADMET analysis, which indicated good gastrointestinal absorption as well as low toxicity. Selected compounds were evaluated for their in vitro anti-cancer activity using A549, MCF-7 and HeLa cell lines through an MTT assay to determine cytotoxicity. Compounds 3c, 3a and 11c exhibited significant cytotoxicity towards A549 cells in the order of 3c (15.3 ± 0.7) > 3a (15.8 ± 0.1) > 11c (17.1 ± 0.2), whereas all the compounds show insignificant toxicity on normal human embryonic kidney cells up to a concentration of 200 μM. The best compounds among the series (3c and 11c) were chosen for further detection of apoptosis through fluorescence microscopic techniques using AO/EtBr and DAPI. The reduced DNA synthesis during the cell cycle was also investigated through flow cytometric techniques. The results indicate that the compounds possess significant anticancer properties due to the activation of the mitochondrial mediated intrinsic pathway.
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Affiliation(s)
- Vandana Nandakumar
- School of Chemical Sciences, Department of Chemistry, Bharathiar University Coimbatore Tamil Nadu 641046 India
| | - Amsaveni Sundarasamy
- School of Chemical Sciences, Department of Chemistry, Bharathiar University Coimbatore Tamil Nadu 641046 India
| | - Kaviyarasu Adhigaman
- School of Chemical Sciences, Department of Chemistry, Bharathiar University Coimbatore Tamil Nadu 641046 India
| | - Sentamil Selvi Ramasamy
- School of Chemical Sciences, Department of Chemistry, Bharathiar University Coimbatore Tamil Nadu 641046 India
| | - Manickam Paulpandi
- Disease Proteomics laboratory, School of Life Sciences, Department of Zoology, Bharathiar University Coimbatore Tamil Nadu 641046 India
| | | | - Arul Narayanasamy
- Disease Proteomics laboratory, School of Life Sciences, Department of Zoology, Bharathiar University Coimbatore Tamil Nadu 641046 India
| | - Suresh Thangaraj
- School of Chemical Sciences, Department of Chemistry, Bharathiar University Coimbatore Tamil Nadu 641046 India
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Qin Y, Wang J, Lv Q, Han B. Recent Progress in Research on Mitochondrion-Targeted Antifungal Drugs: a Review. Antimicrob Agents Chemother 2023; 67:e0000323. [PMID: 37195189 PMCID: PMC10269089 DOI: 10.1128/aac.00003-23] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023] Open
Abstract
Fungal infections, which commonly occur in immunocompromised patients, can cause high morbidity and mortality. Antifungal agents act by disrupting the cell membrane, inhibiting nucleic acid synthesis and function, or inhibiting β-1,3-glucan synthase. Because the incidences of life-threatening fungal infections and antifungal drug resistance are continuously increasing, there is an urgent need for the development of new antifungal agents with novel mechanisms of action. Recent studies have focused on mitochondrial components as potential therapeutic drug targets, owing to their important roles in fungal viability and pathogenesis. In this review, we discuss novel antifungal drugs targeting mitochondrial components and highlight the unique fungal proteins involved in the electron transport chain, which is useful for investigating selective antifungal targets. Finally, we comprehensively summarize the efficacy and safety of lead compounds in clinical and preclinical development. Although fungus-specific proteins in the mitochondrion are involved in various processes, the majority of the antifungal agents target dysfunction of mitochondria, including mitochondrial respiration disturbance, increased intracellular ATP, reactive oxygen species generation, and others. Moreover, only a few drugs are under clinical trials, necessitating further exploration of possible targets and development of effective antifungal agents. The unique chemical structures and targets of these compounds will provide valuable hints for further exploiting new antifungals.
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Affiliation(s)
- Yulin Qin
- Department of Pharmacy, Minhang Hospital, Fudan University, Shanghai, China
| | - Jinxin Wang
- School of Pharmacy, Naval Medical University, Shanghai, People’s Republic of China
| | - Quanzhen Lv
- School of Pharmacy, Naval Medical University, Shanghai, People’s Republic of China
| | - Bing Han
- Department of Pharmacy, Minhang Hospital, Fudan University, Shanghai, China
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Abdelhameed RM, Hasanin MS, Hashem AH. Carboxymethyl cellulose/sulfur-functionalized Ti-based MOF composite: synthesis, characterization, antimicrobial, antiviral and anticancer potentiality. DISCOVER NANO 2023; 18:75. [PMID: 37382711 DOI: 10.1186/s11671-023-03852-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 04/28/2023] [Indexed: 06/30/2023]
Abstract
Microbial resistance is the first morbidity and mortality cause for patients as usually a secondary infection. Additionally, the MOF is a promising material that shows a nice activity in this field. However, these materials need a good formulation to enhance biocompatibility and sustainability. Cellulose and its derivatives are well as filers for this gap. In this presented work, a novel green active system based on carboxymethyl cellulose and Ti-MOF (MIL-125-NH2@CMC) modified with thiophene (Thio@MIL-125-NH2@CMC) was prepared by a post-synthetic modification (PSM) route based. FTIR, SEM and PXRD were utilized to characterize nanocomposites. In addition, transmission electron microscopy (TEM) was used to corroborate the nanocomposites' particle size and diffraction pattern as well as the DLS affirmed the size as 50 and 35 nm for MIL-125-NH2@CMC and Thio@MIL-125-NH2@CMC, respectively. The formulation of the nanocomposites was validated by physicochemical characterization techniques, while morphological analysis confirmed the nanoform of the prepared composites. The antimicrobial, antiviral and antitumor properties of MIL-125-NH2@CMC and Thio@MIL-125-NH2@CMC were assessed. Antimicrobial testing revealed that Thio@MIL-125-NH2@CMC possesses greater antimicrobial activity than MIL-125-NH2@CMC. Additionally, Thio@MIL-125-NH2@CMC demonstrated promising antifungal activity against C. albicans and A. niger where MICs were 31.25 and 0.97 µg/mL, respectively. Also, Thio@MIL-125-NH2@CMC exhibited antibacterial activity against E. coli and S. aureus where MICs were 1000 and 250 µg/mL, respectively. In addition, the results demonstrated that Thio@MIL-125-NH2@CMC displayed promising antiviral activity against both HSV1 and COX B4, with antiviral activities of 68.89% and 39.60%, respectively. Furthermore, Thio@MIL-125-NH2@CMC exhibited potential anticancer activity against MCF7 and PC3 cancerous cell lines, where IC50 was 93.16 and 88.45%, respectively. In conclusion, carboxymethyl cellulose/sulfur-functionalized Ti-based MOF composite was successfully synthesized which had antimicrobial, antiviral and anticancer activities.
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Affiliation(s)
- Reda M Abdelhameed
- Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre, Scopus Affiliation ID 60014618, 33 EL Buhouth St., Dokki, 12622, Giza, Egypt
| | - Mohamed S Hasanin
- Cellulose and Paper Department, Chemical Industries Research Institute, National Research Centre, 12622, Dokki, Cairo, Egypt.
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
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Synthesis, characterization, antioxidant and antiparasitic activities new naphthyl-thiazole derivatives. Exp Parasitol 2023; 248:108498. [PMID: 36907541 DOI: 10.1016/j.exppara.2023.108498] [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: 10/09/2022] [Revised: 02/10/2023] [Accepted: 03/03/2023] [Indexed: 03/14/2023]
Abstract
In this work, 13 thiosemicarbazones (1a - m) and 16 thiazoles (2a - p) were obtained, which were properly characterized by spectroscopic and spectrometric techniques. The pharmacokinetic properties obtained in silico revealed that the derivatives are in accordance with the parameters established by lipinski and veber, showing that such compounds have good bioavailability or permeability when administered orally. In assays of antioxidant activity, thiosemicarbazones showed moderate to high antioxidant potential when compared to thiazoles. In addition, they were able to interact with albumin and DNA. Screening assays to assess the toxicity of compounds to mammalian cells revealed that thiosemicarbazones were less toxic when compared to thiazoles. In relation to in vitro antiparasitic activity, thiosemicarbazones and thiazoles showed cytotoxic potential against the parasites Leishmania amazonensis and Trypanosoma cruzi. Among the compounds, 1b, 1j and 2l stood out, showing inhibition potential for the amastigote forms of the two parasites. As for the in vitro antimalarial activity, thiosemicarbazones did not inhibit Plasmodium falciparum growth. In contrast, thiazoles promoted growth inhibition. This study shows in a preliminary way that the synthesized compounds have antiparasitic potential in vitro.
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Improving the antimicrobial activity of old antibacterial drug mafenide: Schiff bases and their bioactivity targeting resistant pathogens. Future Med Chem 2023; 15:255-274. [PMID: 36891917 DOI: 10.4155/fmc-2022-0259] [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] [Indexed: 03/10/2023] Open
Abstract
Background: Increasing rates of acquired resistance have justified the critical need for novel antimicrobial drugs. One viable concept is the modification of known drugs. Methods & results: 21 mafenide-based compounds were prepared via condensation reactions and screened for antimicrobial efficacy, which demonstrated promising activity against both Gram-positive and Gram-negative pathogens, pathogenic fungi and mycobacterial strains (minimum inhibitory concentrations from 3.91 μM). Importantly, they retained activity against a panel of superbugs (methicillin- and vancomycin-resistant staphylococci, enterococci, multidrug-resistant Mycobacterium tuberculosis) without any cross-resistance. Unlike mafenide, most of its imines were bactericidal. Toxicity to HepG2 cells was also investigated. Conclusion: Schiff bases were significantly more active than the parent drug, with iodinated salicylidene and 5-nitrofuran/thiophene-methylidene scaffolds being preferred in identifying the most promising drug candidates.
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Isoflavaspidic Acid PB Extracted from Dryopteris fragrans (L.) Schott Inhibits Trichophyton rubrum Growth via Membrane Permeability Alternation and Ergosterol Biosynthesis Disruption. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6230193. [PMID: 35782069 PMCID: PMC9249503 DOI: 10.1155/2022/6230193] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/19/2022] [Accepted: 05/23/2022] [Indexed: 11/18/2022]
Abstract
Isoflavaspidic acid PB (PB), a phloroglucinol derivative extracted from aerial parts of Dryopteris fragrans (L.) Schott, had antifungal activity against several dermatophytes. This study was aimed at exploring the antifungal mechanism of PB against Trichophyton rubrum (T. rubrum). The effectiveness of PB in inhibiting T. rubrum growth was detected by time-kill kinetics study and fungal biomass determination. Studies on the mechanism of action were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), sorbitol and ergosterol assay, nucleotide leakage measurement, and UPLC-based test and enzyme-linked immunosorbent assay. Fungicidal activity of PB was concentration- and time-dependent at 2 × MIC (MIC: 20 μg/mL) after 36 h. The total biomass of T. rubrum was reduced by 64.17%, 77.65%, and 84.71% in the presence of PB at 0.5 × MIC, 1 × MIC, and 2 × MIC, respectively. SEM analysis showed that PB changed mycelial morphology, such as shrinking, twisting, collapsing, and even flattening. TEM images of treated cells exhibited abnormal distributions of polysaccharide particles, plasmolysis, and cytoplasmic content degradation accompanied by plasmalemma disruption. There were no changes in the MIC of PB in the presence of sorbitol. However, the MIC values of PB were increased by 4-fold with exogenous ergosterol. At 4 h and 8 h, PB increased nucleotide leakage. Besides, ergosterol content in T. rubrum membrane treated with PB at 0.5 × MIC, 1 × MIC, and 2 × MIC was decreased by 9.58%, 15.31%, and 76.24%, respectively. There was a dose-dependent decrease in the squalene epoxidase (SE) activity. And the reduction in the sterol 14α-demethylase P450 (CYP51) activity was achieved after PB treatments at 1 × MIC and 2 × MIC. These results suggest that PB displays nonspecific action on the cell wall. The membrane damaging effects of PB were attributed to binding with ergosterol to increase membrane permeability and interfering ergosterol biosynthesis involved with the reduction of SE and CYP51 activities. Further study is needed to develop PB as a natural antifungal candidate for clinical use.
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Selective Metal Chelation by a Thiosemicarbazone Derivative Interferes with Mitochondrial Respiration and Ribosome Biogenesis in Candida albicans. Microbiol Spectr 2022; 10:e0195121. [PMID: 35412374 PMCID: PMC9241695 DOI: 10.1128/spectrum.01951-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Metal chelation is generally considered as a promising antifungal approach but its specific mechanisms are unclear. Here, we identify 13 thiosemicarbazone derivatives that exert broad-spectrum antifungal activity with potency comparable or superior to that of fluconazole in vitro by screening a small compound library comprising 89 thiosemicarbazone derivatives as iron chelators. Among the hits, 19ak exhibits minimal cytotoxicity and potent activity against either azole-sensitive or azole-resistant fungal pathogens. Mechanism investigations reveal that 19ak inhibits mitochondrial respiration mainly by retarding mitochondrial respiratory chain complex I activity through iron chelation, and further reduces mitochondrial membrane potential and ATP synthesis in Candida albicans. In addition, 19ak inhibits fungal ribosome biogenesis mainly by disrupting intracellular zinc homeostasis. 19ak also stimulates the activities of antioxidant enzymes and decreases reactive oxygen species formation in C. albicans, resulting in an increase in detrimental intracellular reductive stress. However, 19ak has minor effects on mammalian cells in depleting intracellular iron and zinc. Moreover, 19ak exhibits low capacity to induce drug resistance and in vivo efficacy in a Galleria mellonella infection model. These findings uncover retarded fungal mitochondrial respiration and ribosome biogenesis as downstream effects of disruption of iron and zinc homeostasis in C. albicans and provide a basis for the thiosemicarbazone 19ak in antifungal application. IMPORTANCE The increasing incidence of fungal infections and resistance to existing antifungals call for the development of broad-spectrum antifungals with novel mechanisms of action. In this study, we demonstrate that a thiosemicarbazone derivative 19ak selectively inhibits mitochondrial respiration mainly by retarding mitochondrial respiratory chain complex I activity through iron chelation and inhibits ribosome biogenesis mainly by disrupting intracellular zinc homeostasis in C. albicans. In addition, 19ak exhibits low capacity to induce fungal resistance, minimal cytotoxicity, and in vivo antifungal efficacy. This study provides the basis of thiosemicarbazone derivative 19ak as a metal chelator for the treatment of fungal infections.
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Roman G. Thiophene-containing compounds with antimicrobial activity. Arch Pharm (Weinheim) 2022; 355:e2100462. [PMID: 35289443 DOI: 10.1002/ardp.202100462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 12/19/2022]
Abstract
Thiophene, as a member of the group of five-membered heterocycles containing one heteroatom, is one of the simplest heterocyclic systems. Many synthetic strategies allow the accurate positioning of various functionalities onto the thiophene ring. This review provides a comprehensive, systematic and detailed account of the developments in the field of antimicrobial compounds featuring at least one thiophene ring in their structure, over the last decade.
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Affiliation(s)
- Gheorghe Roman
- Department of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, Iaşi, Romania
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Jaafar A, Mansour N, Fix‐Tailler A, Allain M, Faour WH, Shebaby WN, Tokajian S, El‐Ghayoury A, Naoufal D, Larcher G, Ibrahim G. Synthesis, Characterization, Antibacterial and Antifungal Activities Evaluation of Metal Complexes With Benzaldehyde‐4‐methylthiosemicarbazone Derivatives. ChemistrySelect 2022. [DOI: 10.1002/slct.202104497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amani Jaafar
- Chemistry Department Inorganic and Organometallic Coordination Chemistry laboratory (LCIO) Lebanese University Faculty of science section I Hadath Lebanon
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP) UPRES-EA 3142 SFR 132 Institut de Biologie en Santé PBH-IRIS Université d'Angers, CHU Angers cedex France
| | - Najwa Mansour
- Department of Natural Sciences Lebanese American University Byblos Lebanon, P.O. Box 36
| | - Adeline Fix‐Tailler
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP) UPRES-EA 3142 SFR 132 Institut de Biologie en Santé PBH-IRIS Université d'Angers, CHU Angers cedex France
| | - Magali Allain
- Chemistry Department UNIV Angers, CNRS UMR 6200 MOLTECH-Anjou SFR MATRIX 2 Bd Lavoisier F-49000 Angers France
| | - Wissam H. Faour
- Gilbert & Rose-Marie Chagoury School of Medicine Lebanese American University Byblos Lebanon, P.O. Box 36
| | - Wassim N. Shebaby
- Department of Natural Sciences Lebanese American University Byblos Lebanon, P.O. Box 36
| | - Sima Tokajian
- Department of Natural Sciences Lebanese American University Byblos Lebanon, P.O. Box 36
| | - Abdelkrim El‐Ghayoury
- Chemistry Department UNIV Angers, CNRS UMR 6200 MOLTECH-Anjou SFR MATRIX 2 Bd Lavoisier F-49000 Angers France
| | - Daoud Naoufal
- Chemistry Department Inorganic and Organometallic Coordination Chemistry laboratory (LCIO) Lebanese University Faculty of science section I Hadath Lebanon
| | - Gérald Larcher
- Groupe d'Etude des Interactions Hôte-Pathogène (GEIHP) UPRES-EA 3142 SFR 132 Institut de Biologie en Santé PBH-IRIS Université d'Angers, CHU Angers cedex France
| | - Ghassan Ibrahim
- Chemistry Department Inorganic and Organometallic Coordination Chemistry laboratory (LCIO) Lebanese University Faculty of science section I Hadath Lebanon
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Yakan H, Koçyiğit ÜM, Muğlu H, Ergul M, Erkan S, Güzel E, Taslimi P, Gülçin İ. Potential thiosemicarbazone-based enzyme inhibitors: Assessment of antiproliferative activity, metabolic enzyme inhibition properties, and molecular docking calculations. J Biochem Mol Toxicol 2022; 36:e23018. [PMID: 35199412 DOI: 10.1002/jbt.23018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 11/01/2021] [Accepted: 01/05/2022] [Indexed: 01/20/2023]
Abstract
A new series of thiosemicarbazone derivatives (1-11) were prepared from various aldehydes and isocyanates with high yields and practical methods. The structures of these compounds were elucidated by Fourier transform infrared, 1 H-nuclear magnetic resonance (NMR), 13 C-NMR spectroscopic methods and elemental analysis. Cytotoxic effects of target compounds were determined by 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide assay and compound 1 showed significant cytotoxic activity against both MCF-7 and MDA-MB-231 cells, with half-maximal inhibitory concentration values of 2.97 μM and 6.57 μM, respectively. Moreover, in this study, the anticholinergic and antidiabetic potentials of these compounds were investigated. To this aim, the effect of the newly synthesized thiosemicarbazone derivatives on the activities of acetylcholinesterase (AChE) and αglycosidase (α-Gly) was evaluated spectrophotometrically. The title compounds demonstrated high inhibitory activities compared to standard inhibitors with Ki values in the range of 122.15-333.61 nM for α-Gly (Ki value for standard inhibitor = 75.48 nM), 1.93-12.36 nM for AChE (Ki value for standard inhibitor = 17.45 nM). Antiproliferative activity and enzyme inhibition at the molecular level were performed molecular docking studies for thiosemicarbazone derivatives. 1M17, 5FI2, and 4EY6, 4J5T target proteins with protein data bank identification with (1-11) compounds were docked for anticancer and enzyme inhibition, respectively.
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Affiliation(s)
- Hasan Yakan
- Department of Science and Mathematics Education, Ondokuz Mayıs University, Samsun, Turkey
| | - Ümit M Koçyiğit
- Department of Basic Pharmaceutical Sciences, Sivas Cumhuriyet University, Sivas, Turkey
| | - Halit Muğlu
- Department of Chemistry, Kastamonu University, Kastamonu, Turkey
| | - Mustafa Ergul
- Department of Basic Pharmaceutical Sciences, Sivas Cumhuriyet University, Sivas, Turkey
| | - Sultan Erkan
- Department of Chemistry, Sivas Cumhuriyet University, Sivas, Turkey
| | - Emre Güzel
- Department of Engineering Fundamental Sciences, Sakarya University of Applied Sciences, Sakarya, Turkey.,Biomedical Technologies Application and Research Center (BIYOTAM), Sakarya University of Applied Sciences, Sakarya, Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey.,Department of Chemistry, Faculty of Science, İstinye University, İstanbul, Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
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Oliveira VDS, da Cruz MM, Bezerra GS, Silva NESE, Nogueira FHA, Chaves GM, Sobrinho JLS, Mendonça-Junior FJB, Damasceno BPGDL, Converti A, de Lima ÁAN. Chitosan-Based Films with 2-Aminothiophene Derivative: Formulation, Characterization and Potential Antifungal Activity. Mar Drugs 2022; 20:103. [PMID: 35200633 PMCID: PMC8878255 DOI: 10.3390/md20020103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/13/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
In this study, films of chitosan and 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (6CN), a 2-aminothiophene derivative with great pharmacological potential, were prepared as a system for a topical formulation. 6CN-chitosan films were characterized by physicochemical analyses, such as Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electronic microscopy (SEM). Additionally, the antifungal potential of the films was evaluated in vitro against three species of Candida (C. albicans, C. tropicalis, and C. parapsilosis). The results of the FTIR and thermal analysis showed the incorporation of 6CN in the polymer matrix. In the diffractogram, the 6CN-chitosan films exhibited diffraction halos that were characteristic of amorphous structures, while the micrographs showed that 6CN particles were dispersed in the chitosan matrix, exhibiting pores and cracks on the film surface. In addition, the results of antifungal investigation demonstrated that 6CN-chitosan films were effective against Candida species showing potential for application as a new antifungal drug.
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Affiliation(s)
- Verônica da Silva Oliveira
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
| | - Meriângela Miranda da Cruz
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
| | - Gabriela Suassuna Bezerra
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
| | - Natan Emanuell Sobral e Silva
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
| | - Fernando Henrique Andrade Nogueira
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
| | - Guilherme Maranhão Chaves
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
| | | | | | | | - Attilio Converti
- Department of Civil, Chemical and Environment Engineering, Pole of Chemical Engineering, University of Genoa, I-16145 Genoa, Italy
| | - Ádley Antonini Neves de Lima
- Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, RN, Brazil; (V.d.S.O.); (M.M.d.C.); (G.S.B.); (N.E.S.e.S.); (F.H.A.N.); (G.M.C.)
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Bajaj K, Buchanan RM, Grapperhaus CA. Antifungal activity of thiosemicarbazones, bis(thiosemicarbazones), and their metal complexes. J Inorg Biochem 2021; 225:111620. [PMID: 34619407 DOI: 10.1016/j.jinorgbio.2021.111620] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/06/2021] [Accepted: 09/18/2021] [Indexed: 12/25/2022]
Abstract
Fungi are ubiquitous in nature, and typically cause little or no environmental or pathogenic damage to their plant, animal, and human hosts. However, a small but growing number of pathogenic fungi are spreading world-wide at an alarming rate threatening global ecosystem health and proliferation. Many of these emerging pathogens have developed multi-drug resistance to front line therapeutics increasing the urgency for the development of new antifungal agents. This review examines the development of thiosemicarbazones, bis(thiosemicarbazones), and their metal complexes as potential antifungal agents against more than 65 different fungal strains. The fungistatic activity of the compounds are quantified based on the zone of inhibition, minimum inhibitory concentration, or growth inhibition percentage. In this review, reported activities were standardized based on molar concentrations to simplify comparisons between different compounds. Of all the fungal strains reported in the review, A. niger in particular was very resistant towards a majority of tested compounds. Our analysis of the data shows that metal complexes are typically more active than non-coordinated ligands with copper(II) and zinc(II) complexes generally displaying the highest activity.
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Affiliation(s)
- Kritika Bajaj
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, KY 40292, United States of America
| | - Robert M Buchanan
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, KY 40292, United States of America
| | - Craig A Grapperhaus
- Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, KY 40292, United States of America.
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Karpagam B, Sankarganesh M, Ravi L, Kesavan MP, Vinoth Kumar GG, Rajagopal G, Rajesh J. Synthesis, spectroscopic and crystal structure of nickel(II) complex of thiosemicarbazone basedSchiff base: Antimicrobial, anticancer and molecular docking studies. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Montalbano S, Degola F, Bartoli J, Bisceglie F, Buschini A, Carcelli M, Feretti D, Galati S, Marchi L, Orsoni N, Pelosi G, Pioli M, Restivo FM, Rogolino D, Scaccaglia M, Serra O, Spadola G, Viola GCV, Zerbini I, Zani C. The AFLATOX ® Project: Approaching the Development of New Generation, Natural-Based Compounds for the Containment of the Mycotoxigenic Phytopathogen Aspergillus flavus and Aflatoxin Contamination. Int J Mol Sci 2021; 22:4520. [PMID: 33926042 PMCID: PMC8123576 DOI: 10.3390/ijms22094520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 12/14/2022] Open
Abstract
The control of the fungal contamination on crops is considered a priority by the sanitary authorities of an increasing number of countries, and this is also due to the fact that the geographic areas interested in mycotoxin outbreaks are widening. Among the different pre- and post-harvest strategies that may be applied to prevent fungal and/or aflatoxin contamination, fungicides still play a prominent role; however, despite of countless efforts, to date the problem of food and feed contamination remains unsolved, since the essential factors that affect aflatoxins production are various and hardly to handle as a whole. In this scenario, the exploitation of bioactive natural sources to obtain new agents presenting novel mechanisms of action may represent a successful strategy to minimize, at the same time, aflatoxin contamination and the use of toxic pesticides. The Aflatox® Project was aimed at the development of new-generation inhibitors of aflatoxigenic Aspergillus spp. proliferation and toxin production, through the modification of naturally occurring molecules: a panel of 177 compounds, belonging to the thiosemicarbazones class, have been synthesized and screened for their antifungal and anti-aflatoxigenic potential. The most effective compounds, selected as the best candidates as aflatoxin containment agents, were also evaluated in terms of cytotoxicity, genotoxicity and epi-genotoxicity to exclude potential harmful effect on the human health, the plants on which fungi grow and the whole ecosystem.
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Affiliation(s)
- Serena Montalbano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Francesca Degola
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Jennifer Bartoli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Franco Bisceglie
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Annamaria Buschini
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
- Interdepartmental Centre for Molecular and Translational Oncology COMT, University of Parma, 43124 Parma, PR, Italy;
| | - Mauro Carcelli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Donatella Feretti
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, BS, Italy; (D.F.); (G.C.V.V.); (I.Z.); (C.Z.)
| | - Serena Galati
- Interdepartmental Centre for Molecular and Translational Oncology COMT, University of Parma, 43124 Parma, PR, Italy;
| | - Laura Marchi
- Department of Medicine and Surgery, Respiratory Disease and Lung Function Unit, University of Parma, Via Gramsci 14, 43125 Parma, PR, Italy;
| | - Nicolò Orsoni
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Giorgio Pelosi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Marianna Pioli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Francesco M. Restivo
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Dominga Rogolino
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Mirco Scaccaglia
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Olga Serra
- Medical Oncology and Breast Unit, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43125 Parma, PR, Italy;
| | - Giorgio Spadola
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, PR, Italy; (S.M.); (J.B.); (F.B.); (A.B.); (M.C.); (N.O.); (G.P.); (M.P.); (F.M.R.); (D.R.); (M.S.); (G.S.)
| | - Gaia C. V. Viola
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, BS, Italy; (D.F.); (G.C.V.V.); (I.Z.); (C.Z.)
| | - Ilaria Zerbini
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, BS, Italy; (D.F.); (G.C.V.V.); (I.Z.); (C.Z.)
| | - Claudia Zani
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 11 Viale Europa, 25123 Brescia, BS, Italy; (D.F.); (G.C.V.V.); (I.Z.); (C.Z.)
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İLHAN CEYLAN B. Oxovanadium(IV) template derived from benzophenone S-allyl thiosemicarbazone: Synthesis, crystal structure, antioxidant activity and electrochemistry. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2021. [DOI: 10.18596/jotcsa.911318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Alves DDN, Ferreira AR, Duarte ABS, Melo AKV, de Sousa DP, de Castro RD. Breakpoints for the Classification of Anti- Candida Compounds in Antifungal Screening. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6653311. [PMID: 33880374 PMCID: PMC8046529 DOI: 10.1155/2021/6653311] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/19/2021] [Accepted: 03/21/2021] [Indexed: 12/27/2022]
Abstract
INTRODUCTION The absence of a standardized classification scheme for the antifungal potency of compounds screened against Candida species may hinder the study of new drugs. This systematic review proposes a scheme of interpretative breakpoints for the minimum inhibitory concentration (MIC) of bioactive compounds against Candida species in in vitro tests. MATERIALS AND METHODS A literature search was conducted in the PubMed, Scopus, Web of Science, Lilacs, and SciFinder databases for the period from January 2015 to April 2020. The following inclusion criterion was used: organic compounds tested by the microdilution technique according to the Clinical and Laboratory Standards Institute protocol against reference strains of the genus Candida. A total of 545 articles were retrieved after removing duplicates. Of these, 106 articles were selected after applying the exclusion criteria and were evaluated according to the number of synthesized molecules and their chemical classes, the type of strain (reference or clinical) used in the antifungal test, the Candida species, and the MIC (in μg/mL) used. RESULTS The analysis was performed based on the median, quartiles (25% and 75%), maximum, and minimum values of four groups: all strains, ATCC strains, C. albicans strains, and C. albicans ATCC strains. The following breakpoints were proposed to define the categories: MIC < 3.515 μg/mL (very strong bioactivity); 3.516-25 μg/mL (strong bioactivity); 26-100 μg/mL (moderate bioactivity); 101-500 μg/mL (weak bioactivity); 500-2000 μg/mL (very weak bioactivity); and >2000 μg/mL (no bioactivity). CONCLUSIONS A classification scheme of the antifungal potency of compounds against Candida species is proposed that can be used to identify the antifungal potential of new drug candidates.
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Affiliation(s)
- Danielle da Nóbrega Alves
- Department of Clinic and Social Dentistry, Graduate Program in Natural and Synthetic Bioactive Products (PgPNSB), Center for Health Sciences, Federal University of Paraiba, João Pessoa, PB, Brazil
| | - Alana Rodrigues Ferreira
- Graduate Program in Natural and Synthetic Bioactive Products (PgPNSB), Center for Health Sciences, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Allana Brunna Sucupira Duarte
- Graduate Program in Natural and Synthetic Bioactive Products (PgPNSB), Center for Health Sciences, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Ana Karoline Vieira Melo
- Graduate Program in Dentistry (PPGO), Center for Health Sciences, Federal University of Paraiba, João Pessoa, PB, Brazil
| | - Damião Pergentino de Sousa
- Department of Pharmaceutical Sciences, Center for Health Sciences, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Ricardo Dias de Castro
- Department of Clinic and Social Dentistry, Graduate Program in Natural and Synthetic Bioactive Products (PgPNSB), Center for Health Sciences, Federal University of Paraiba, João Pessoa, PB, Brazil
- Graduate Program in Dentistry (PPGO), Center for Health Sciences, Federal University of Paraiba, João Pessoa, PB, Brazil
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Khan AA, Alanazi AM, Alsaif N, Algrain N, Wani TA, Bhat MA. Enhanced Efficacy of Thiosemicarbazone Derivative-Encapsulated Fibrin Liposomes against Candidiasis in Murine Model. Pharmaceutics 2021; 13:pharmaceutics13030333. [PMID: 33806702 PMCID: PMC7998974 DOI: 10.3390/pharmaceutics13030333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/09/2021] [Accepted: 02/25/2021] [Indexed: 12/26/2022] Open
Abstract
Candida albicans is the most studied species for the candidiasis infection and is becoming resistant towards existing antifungal drugs. Considering this, in the current study, we developed and characterized a fibrin liposome-based formulation encapsulating a novel thiosemicarbazone derivative, 2C, and evaluated its antifungal efficacy against murine candidiasis. The 2C-containing formulation was prepared by encapsulating 2C within the liposomes (2C-L) that were further encapsulated in the fibrin beads (2C-FL). The in-house synthesized 2C-FLs were spherical with a zeta potential of −34.12 ± 0.3 mV, an entrapment efficiency of 72.6 ± 4.7%, and a loading efficiency of 9.21 ± 2.3%, and they showed a slow and sustained release of 2C. Compared to free 2C, the formulation was non-toxic and exhibited serum stability, increased tissue specificity, and penetration. The 2C-FL formulation had a minimum inhibitory concentration (MIC) value of 4.92 ± 0.76 µg/mL and was able to induce apoptosis and necrosis in C. albicans in vitro. The administration of 2C-FL in C. albicans-infected mice prolonged their survival and antifungal effects when compared with the free 2C. The 2C-FL antifungal therapy significantly reduced the fungal burden and displayed an improved survival rate. In conclusion, the 2C thiosemicarbazone derivative possesses a potent antifungal activity that became more advantageous upon its encapsulation in the fibrin liposome delivery system.
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Polythiophene derivatives as chemical sensors: a DFT study on the influence of side groups. J Mol Model 2021; 27:17. [PMID: 33409576 DOI: 10.1007/s00894-020-04632-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022]
Abstract
Conjugated polymers have been considered promising candidates for applications in chemical sensors, mainly due to their high versatility of synthesis, low cost, light weight, and suitable optoelectronic properties. In this context, polythiophene (PT) derivatives have been successfully employed. However, at the same time that the versatility of the synthesis allows the production of varied derivatives, the complexity of interactions with analytes hinders an efficient design of compounds with improved sensing properties. In the present report, electronic structure calculations were employed to identify promising PT derivatives for chemical sensor applications. Structural, optoelectronic, and reactivity properties of a set of branched PT derivatives were evaluated. Adsorption studies considering different gaseous compounds were conducted for selected systems. The results suggest that an appropriate choice of the side groups can lead to derivatives with improved sensorial properties. In particular, PT-CN derivative was identified as the most promising compound for high sensitive chemical sensors towards SO2 and NH3 analytes.
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Interplay of weak intermolecular interactions in two Schiff's bases with organic fluorine derived from 5-nitrothiophene-2-carboxaldehyde: Crystal structures, DFT calculation and in vitro evaluation of bioactivities. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Synthesis, ADMET Properties, and In Vitro Antimicrobial and Antibiofilm Activity of 5-Nitro-2-thiophenecarbaldehyde N-((E)-(5-Nitrothienyl)methylidene)hydrazone (KTU-286) against Staphylococcus aureus with Defined Resistance Mechanisms. Antibiotics (Basel) 2020; 9:antibiotics9090612. [PMID: 32957471 PMCID: PMC7558474 DOI: 10.3390/antibiotics9090612] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 11/17/2022] Open
Abstract
The emergence of drug-resistant Staphylococcus aureus is responsible for high morbidity and mortality worldwide. New therapeutic options are needed to fight the increasing antimicrobial resistance among S. aureus in the clinical setting. We, therefore, characterized the in silico absorption, distribution, metabolism, elimination, and toxicity (ADMET) and in vitro antimicrobial activity of 5-nitro-2-thiophenecarbaldehyde N-((E)-(5-nitrothienyl)methylidene)hydrazone (KTU-286) against drug-resistant S. aureus strains with genetically defined resistance mechanisms. The antimicrobial activity of KTU-286 was determined by CLSI recommendations. The ADMET properties were estimated by using in silico modeling. The activity on biofilm integrity was examined by crystal violet assay. KTU-286 demonstrated low estimated toxicity and low skin permeability. The highest antimicrobial activity was observed among pan-susceptible (Pan-S) S. aureus (minimal inhibitory concentration (MIC) 0.5–2.0 µg/mL, IC50 = 0.460 µg/mL), followed by vancomycin resistant S. aureus (VRSA) (MIC 4.0 µg/mL, IC50 = 1.697 µg/mL) and methicillin-resistant S. aureus (MRSA) (MIC 1.0–16.0 µg/mL, IC50 = 2.282 µg/mL). KTU-286 resulted in significant (p < 0.05) loss of S. aureus biofilm integrity in vitro. Further studies are needed for a better understanding of safety, synergistic relationship, and therapeutic potency of KTU-286.
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Jain P, Sharma S, Kumar N, Misra N. Ni(II) and Cu(II) complexes of bidentate thiosemicarbazone ligand: Synthesis, structural, theoretical, biological studies and molecular modeling. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Pallavi Jain
- Department of Chemistry, SRM‐IST NCR Campus Ghaziabad Delhi 201204 India
| | - Swati Sharma
- Department of Chemistry, SRM‐IST NCR Campus Ghaziabad Delhi 201204 India
| | - Neeraj Kumar
- Department of Chemistry, SRM‐IST NCR Campus Ghaziabad Delhi 201204 India
| | - Namita Misra
- Residential Complex IIT Jodhpur Jodhpur 342037 India
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Jaafar A, Fix‐Tailler A, Mansour N, Allain M, Shebaby WN, Faour WH, Tokajian S, El‐Ghayoury A, Naoufal D, Bouchara J, Larcher G, Ibrahim G. Synthesis, characterization, antifungal and antibacterial activities evaluation of copper (II), zinc (II) and cadmium (II) chloride and bromide complexes with new (
E
)
‐
1‐(3,4‐dimethoxybenzylidene)‐4‐methylthiosemicarbazone ligand. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5988] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Amani Jaafar
- Inorganic and Organometallic Coordination Chemistry laboratory Lebanese University, Faculty of Science, Section I Hadath Lebanon
- Groupe d’Etude des Interactions Hôte‐Pathogène UPRES‐EA 3142, SFR 132, Université d'Angers, Institut de Biologie en Santé CHU, 4 rue Larrey Angers cedex 49933 France
| | - Adeline Fix‐Tailler
- Groupe d’Etude des Interactions Hôte‐Pathogène UPRES‐EA 3142, SFR 132, Université d'Angers, Institut de Biologie en Santé CHU, 4 rue Larrey Angers cedex 49933 France
| | - Najwa Mansour
- Department of Natural Sciences, School of Arts and Sciences Lebanese American University PO Box 36 Byblos Lebanon
| | - Magali Allain
- Laboratoire MOLTECH‐Anjou UMR CNRS 6200, UNIV Angers, SFR MATRIX 2 Bd Lavoisier Angers Cedex 49045 France
| | - Wassim N. Shebaby
- Department of Natural Sciences, School of Arts and Sciences Lebanese American University PO Box 36 Byblos Lebanon
| | - Wissam H. Faour
- Gilbert & Rose‐Marie Chagoury School of Medicine Lebanese American University PO Box 36 Byblos Lebanon
| | - Sima Tokajian
- Department of Natural Sciences, School of Arts and Sciences Lebanese American University PO Box 36 Byblos Lebanon
| | - Abdelkrim El‐Ghayoury
- Laboratoire MOLTECH‐Anjou UMR CNRS 6200, UNIV Angers, SFR MATRIX 2 Bd Lavoisier Angers Cedex 49045 France
| | - Daoud Naoufal
- Inorganic and Organometallic Coordination Chemistry laboratory Lebanese University, Faculty of Science, Section I Hadath Lebanon
| | - Jean‐Philippe Bouchara
- Groupe d’Etude des Interactions Hôte‐Pathogène UPRES‐EA 3142, SFR 132, Université d'Angers, Institut de Biologie en Santé CHU, 4 rue Larrey Angers cedex 49933 France
| | - Gérald Larcher
- Groupe d’Etude des Interactions Hôte‐Pathogène UPRES‐EA 3142, SFR 132, Université d'Angers, Institut de Biologie en Santé CHU, 4 rue Larrey Angers cedex 49933 France
| | - Ghassan Ibrahim
- Inorganic and Organometallic Coordination Chemistry laboratory Lebanese University, Faculty of Science, Section I Hadath Lebanon
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25
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de Araújo Neto LN, de Lima MDCA, de Oliveira JF, de Souza ER, Feitosa Machado SE, de Souza Lima GM, Silva Buonafina MD, Brayner FA, Alves LC, Sandes JM, da Silva MV, de Castro MCAB, Pereira Neves R, Bezerra Mendonça-Junior FJ. Thiophene-thiosemicarbazone derivative (L10) exerts antifungal activity mediated by oxidative stress and apoptosis in C. albicans. Chem Biol Interact 2020; 320:109028. [PMID: 32119865 DOI: 10.1016/j.cbi.2020.109028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 11/26/2022]
Abstract
Reactive oxygen species (ROS) cause cell damage and death. To reverse these effects, cells produce substances such as reduced glutathione (GSH) that serve as substrates for antioxidant enzymes. One way to combat microbial resistance includes nullifying the effect of glutathione in microbial cells, causing them to die from oxidative stress. The compound 2-((5-nitrothiophen-2-yl)methylene)-N-(pyridin-3-yl) hydrazine carbothioamide (L10) is a new thiophene-thiosemicarbazone derivative with promising antifungal activity. The aim of this study was to evaluate its mechanism of action against Candida albicans using assays that evaluate its effects on redox balance. Treatment with L10 promoted significant changes in the minimum inhibitory concentration (MIC) values in ascorbic acid and GSH protection tests, the latter increasing up to 64-fold of the MIC. Using nuclear magnetic resonance, we demonstrated interaction of L10 and GSH. At concentrations of 4.0 and 8.0 μg/mL, significant changes were observed in ROS production and mitochondrial membrane potential. The cell death profile showed characteristics of initial apoptosis at inhibitory concentrations (4.0 μg/mL). Transmission electron microscopy data corroborated these results and indicated signs of apoptosis, damage to plasma and nuclear membranes, and to mitochondria. Taken together, these results suggest a possible mechanism of action for L10 antifungal activity, involving changes in cellular redox balance, ROS production, and apoptosis-compatible cellular changes.
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Affiliation(s)
- Luiz Nascimento de Araújo Neto
- Medical Mycology Laboratory, Federal University of Pernambuco, 50670-901, Brazil; Chemistry Laboratory and Therapeutic Innovation, Federal University of Pernambuco, 50670-901, Brazil
| | | | | | - Edson Rubhens de Souza
- Chemistry Laboratory and Therapeutic Innovation, Federal University of Pernambuco, 50670-901, Brazil
| | | | | | | | - Fábio André Brayner
- Aggeu Magalhães Institute- IAM/FIOCRUZ and Imunopatology Keizo Asami Laboratory-LIKA/ Federal University of Pernambuco, 50670-901, Brazil
| | - Luiz Carlos Alves
- Aggeu Magalhães Institute- IAM/FIOCRUZ and Imunopatology Keizo Asami Laboratory-LIKA/ Federal University of Pernambuco, 50670-901, Brazil
| | - Jana Messias Sandes
- Aggeu Magalhães Institute- IAM/FIOCRUZ and Imunopatology Keizo Asami Laboratory-LIKA/ Federal University of Pernambuco, 50670-901, Brazil
| | | | - Maria Carolina Accioly Brelaz de Castro
- Laboratory of Immunology IAM/ FIOCRUZ, Federal University of Pernambuco, 50670-901, Brazil; Laboratory of Parasitology, Academic Center of Vitória - Federal University of Pernambuco, 55608-680, Brazil
| | - Rejane Pereira Neves
- Medical Mycology Laboratory, Federal University of Pernambuco, 50670-901, Brazil.
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26
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Roque Marques KM, do Desterro MR, de Arruda SM, de Araújo Neto LN, do Carmo Alves de Lima M, de Almeida SMV, da Silva ECD, de Aquino TM, da Silva-Júnior EF, de Araújo-Júnior JX, de M Silva M, de A Dantas MD, Santos JCC, Figueiredo IM, Bazin MA, Marchand P, da Silva TG, Mendonça Junior FJB. 5-Nitro-Thiophene-Thiosemicarbazone Derivatives Present Antitumor Activity Mediated by Apoptosis and DNA Intercalation. Curr Top Med Chem 2019; 19:1075-1091. [PMID: 31223089 DOI: 10.2174/1568026619666190621120304] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 03/12/2019] [Accepted: 04/02/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Considering the need for the development of new antitumor drugs, associated with the great antitumor potential of thiophene and thiosemicarbazonic derivatives, in this work we promote molecular hybridization approach to synthesize new compounds with increased anticancer activity. OBJECTIVE Investigate the antitumor activity and their likely mechanisms of action of a series of N-substituted 2-(5-nitro-thiophene)-thiosemicarbazone derivatives. METHODS Methods were performed in vitro (cytotoxicity, cell cycle progression, morphological analysis, mitochondrial membrane potential evaluation and topoisomerase assay), spectroscopic (DNA interaction studies), and in silico studies (docking and molecular modelling). RESULTS Most of the compounds presented significant inhibitory activity; the NCIH-292 cell line was the most resistant, and the HL-60 cell line was the most sensitive. The most promising compound was LNN-05 with IC50 values ranging from 0.5 to 1.9 µg.mL-1. The in vitro studies revealed that LNN-05 was able to depolarize (dose-dependently) the mitochondrial membrane, induceG1 phase cell cycle arrest noticeably, promote morphological cell changes associated with apoptosis in chronic human myelocytic leukaemia (K-562) cells, and presented no topoisomerase II inhibition. Spectroscopic UV-vis and molecular fluorescence studies showed that LNN compounds interact with ctDNA forming supramolecular complexes. Intercalation between nitrogenous bases was revealed through KI quenching and competitive ethidium bromide assays. Docking and Molecular Dynamics suggested that 5-nitro-thiophene-thiosemicarbazone compounds interact against the larger DNA groove, and corroborating the spectroscopic results, may assume an intercalating interaction mode. CONCLUSION Our findings highlight 5-nitro-thiophene-thiosemicarbazone derivatives, especially LNN-05, as a promising new class of compounds for further studies to provide new anticancer therapies.
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Affiliation(s)
- Karla Mirella Roque Marques
- Bioactive Products Prospecting Laboratory, Department of Antibiotics, Federal University of Pernambuco, Recife-PE, Brazil
| | - Maria Rodrigues do Desterro
- Bioactive Products Prospecting Laboratory, Department of Antibiotics, Federal University of Pernambuco, Recife-PE, Brazil
| | - Sandrine Maria de Arruda
- Bioactive Products Prospecting Laboratory, Department of Antibiotics, Federal University of Pernambuco, Recife-PE, Brazil
| | - Luiz Nascimento de Araújo Neto
- Laboratory of Chemistry and Therapeutic Innovation, Department of Antibiotics, Federal University of Pernambuco, Recife-PE, Brazil
| | - Maria do Carmo Alves de Lima
- Laboratory of Chemistry and Therapeutic Innovation, Department of Antibiotics, Federal University of Pernambuco, Recife-PE, Brazil
| | | | - Edjan Carlos Dantas da Silva
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, Maceio-AL, Brazil
| | - Thiago Mendonça de Aquino
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, Maceio-AL, Brazil
| | | | - João Xavier de Araújo-Júnior
- Laboratory of Medicinal Chemistry, Nursing and Pharmacy School, Federal University of Alagoas, Maceio-AL, Brazil
| | - Marina de M Silva
- Laboratory of Development and Instrumentation in Analytical Chemistry, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio-AL, Brazil
| | - Maria Dayanne de A Dantas
- Laboratory of Development and Instrumentation in Analytical Chemistry, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio-AL, Brazil
| | - Josué Carinhanha C Santos
- Laboratory of Development and Instrumentation in Analytical Chemistry, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio-AL, Brazil
| | - Isis M Figueiredo
- Laboratory of Development and Instrumentation in Analytical Chemistry, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio-AL, Brazil
| | - Marc-Antoine Bazin
- Universite de Nantes, Cibles et medicaments des infections et du cancer, IICiMed, EA1155, F-44000 Nantes, France
| | - Pascal Marchand
- Universite de Nantes, Cibles et medicaments des infections et du cancer, IICiMed, EA1155, F-44000 Nantes, France
| | - Teresinha Gonçalves da Silva
- Bioactive Products Prospecting Laboratory, Department of Antibiotics, Federal University of Pernambuco, Recife-PE, Brazil
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27
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Gawecki R, Malarz K, Rejmund M, Polanski J, Mrozek-Wilczkiewicz A. Impact of thiosemicarbazones on the accumulation of PpIX and the expression of the associated genes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 199:111585. [PMID: 31450131 DOI: 10.1016/j.jphotobiol.2019.111585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 07/30/2019] [Accepted: 08/07/2019] [Indexed: 01/10/2023]
Abstract
Thiosemicarbazone derivatives are known for their broad biological activity including their antitumor potency. The aim of the current study was to examine the effect of a novel series of non-toxic iron chelators on the accumulation of protoporphyrin IX after external 5-aminolevulonic acid administration. From this series we selected one the most promising derivative which causes a pronounced increase in the concentration of protoporphyrin IX. The increase of the photosensitizer concentration is necessary for the trigger the efficient therapeutic effect of the photodynamic reaction. For selected compound 2 we performed an examination of a panel of the genes that are involved in the heme biosynthesis and degradation. Results indicated the crucial roles of ferrochelatase and heme oxygenase in the described processes. Surprisingly, there was a strict dependence on the type of the tested cell line. A decrease in the expression of the two aforementioned enzymes after incubation with compound 2 and 5-aminolevulonic acid is a commonly known fact and we detected this trend for the MCF-7 and HCT 116 cell lines. However, we noticed the upregulation of the tested targets for the Hs683 cells. These unconventional results prompted us to do a more in-depth analysis of the described processes. In conclusion, we found that compound 2 is a novel, highly effective booster of photodynamic therapy that has prospective applications.
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Affiliation(s)
- Robert Gawecki
- A. Chelkowski Institute of Physics, Silesian Center for Education and Interdisciplinary Research, University of Silesia, Chorzow, Poland
| | - Katarzyna Malarz
- A. Chelkowski Institute of Physics, Silesian Center for Education and Interdisciplinary Research, University of Silesia, Chorzow, Poland
| | - Marta Rejmund
- Institute of Chemistry, University of Silesia, Katowice, Poland
| | | | - Anna Mrozek-Wilczkiewicz
- A. Chelkowski Institute of Physics, Silesian Center for Education and Interdisciplinary Research, University of Silesia, Chorzow, Poland.
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28
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SR9009 has REV-ERB-independent effects on cell proliferation and metabolism. Proc Natl Acad Sci U S A 2019; 116:12147-12152. [PMID: 31127047 DOI: 10.1073/pnas.1904226116] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The nuclear receptors REV-ERBα and -β link circadian rhythms and metabolism. Like other nuclear receptors, REV-ERB activity can be regulated by ligands, including naturally occurring heme. A putative ligand, SR9009, has been reported to elicit a range of beneficial effects in healthy as well as diseased animal models and cell systems. However, the direct involvement of REV-ERBs in these effects of SR9009 has not been thoroughly assessed, as experiments were not performed in the complete absence of both proteins. Here, we report the generation of a mouse model for conditional genetic deletion of REV-ERBα and -β. We show that SR9009 can decrease cell viability, rewire cellular metabolism, and alter gene transcription in hepatocytes and embryonic stem cells lacking both REV-ERBα and -β. Thus, the effects of SR9009 cannot be used solely as surrogate for REV-ERB activity.
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