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De Luca V, Giovannuzzi S, Capasso C, Supuran CT. Cloning, expression, and purification of an α-carbonic anhydrase from Toxoplasma gondii to unveil its kinetic parameters and anion inhibition profile. J Enzyme Inhib Med Chem 2024; 39:2346523. [PMID: 38847581 PMCID: PMC11163988 DOI: 10.1080/14756366.2024.2346523] [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: 02/22/2024] [Accepted: 04/17/2024] [Indexed: 06/12/2024] Open
Abstract
Toxoplasmosis, induced by the intracellular parasite Toxoplasma gondii, holds considerable implications for global health. While treatment options primarily focusing on folate pathway enzymes have notable limitations, current research endeavours concentrate on pinpointing specific metabolic pathways vital for parasite survival. Carbonic anhydrases (CAs, EC 4.2.1.1) have emerged as potential drug targets due to their role in fundamental reactions critical for various protozoan metabolic processes. Within T. gondii, the Carbonic Anhydrase-Related Protein (TgCA_RP) plays a pivotal role in rhoptry biogenesis. Notably, α-CA (TcCA) from another protozoan, Trypanosoma cruzi, exhibited considerable susceptibility to classical CA inhibitors (CAIs) such as anions, sulphonamides, thiols, and hydroxamates. Here, the recombinant DNA technology was employed to synthesise and clone the identified gene in the T. gondii genome, which encodes an α-CA protein (Tg_CA), with the purpose of heterologously overexpressing its corresponding protein. Tg_CA kinetic constants were determined, and its inhibition patterns explored with inorganic metal-complexing compounds, which are relevant for rational compound design. The significance of this study lies in the potential development of innovative therapeutic strategies that disrupt the vital metabolic pathways crucial for T. gondii survival and virulence. This research may lead to the development of targeted treatments, offering new approaches to manage toxoplasmosis.
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Affiliation(s)
- Viviana De Luca
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy
| | - Simone Giovannuzzi
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy
| | - Claudiu T. Supuran
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Italy
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De Luca V, Giovannuzzi S, Supuran CT, Capasso C. A comprehensive investigation of the anion inhibition profile of a β-carbonic anhydrase from Acinetobacter baumannii for crafting innovative antimicrobial treatments. J Enzyme Inhib Med Chem 2024; 39:2372731. [PMID: 39012078 PMCID: PMC467105 DOI: 10.1080/14756366.2024.2372731] [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: 02/22/2024] [Accepted: 06/19/2024] [Indexed: 07/17/2024] Open
Abstract
This study refers to the intricate world of Acinetobacter baumannii, a resilient pathogenic bacterium notorious for its propensity at antibiotic resistance in nosocomial infections. Expanding upon previous findings that emphasised the bifunctional enzyme PaaY, revealing unexpected γ-carbonic anhydrase (CA) activity, our research focuses on a different class of CA identified within the A. baumannii genome, the β-CA, designated as 𝛽-AbauCA (also indicated as CanB), which plays a crucial role in the resistance mechanism mediated by AmpC beta-lactamase. Here, we cloned, expressed, and purified the recombinant 𝛽-AbauCA, unveiling its distinctive kinetic properties and inhibition profile with inorganic anions (classical CA inhibitors). The exploration of 𝛽-AbauCA not only enhances our understanding of the CA repertoire of A. baumannii but also establishes a foundation for targeted therapeutic interventions against this resilient pathogen, promising advancements in combating its adaptability and antibiotic resistance.
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Affiliation(s)
- Viviana De Luca
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy
| | - Simone Giovannuzzi
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Italy
| | - Claudiu T. Supuran
- Neurofarba Department, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Italy
| | - Clemente Capasso
- Department of Biology, Agriculture and Food Sciences, National Research Council (CNR), Institute of Biosciences and Bioresources, Naples, Italy
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Jaffaraghaei M, Ghafouri H, Vaziri B, Taheri M, Talebkhan Y, Heravi M, Parand M. Induction of heat shock protein expression in SP2/0 transgenic cells and its effect on the production of monoclonal antibodies. PLoS One 2024; 19:e0300702. [PMID: 38696377 PMCID: PMC11065310 DOI: 10.1371/journal.pone.0300702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/04/2024] [Indexed: 05/04/2024] Open
Abstract
The objective of the current investigation was to evaluate the induction of heat shock proteins (HSPs) in SP2/0 transgenic cells and the effect of these proteins on the production of monoclonal antibodies (mAbs). The SP2/0 cell line expressing the PSG-026 antibody, a biosimilar candidate of golimumab, the culture parameters, and the target protein expression were not justified for industrial production and were used for the experiments. Paracetamol and heat shock were used as chemical and physical inducers of HSPs, respectively. The results showed that paracetamol and heat shock increased the expression of HSP70 and HSP27 at the mRNA and protein levels. The expression of HSPs was greater in paracetamol-treated cells than in heat shock-treated cells. Paracetamol treatment at concentrations above 0.5 mM significantly reduced cell viability and mAb expression. However, treatment with 0.25 mM paracetamol results in delayed cell death and increased mAb production. Heat shock treatment at 45°C for 30 minutes after enhanced mAb expression was applied after pre-treatment with paracetamol. In bioreactor cultures, pretreatment of cells with paracetamol improved cell viability and shortened the lag phase, resulting in increased cell density. The production of mAbs in paracetamol-treated cultures was markedly greater than that in the control. Analysis of protein quality and charge variants revealed no significant differences between paracetamol-treated and control cultures, indicating that the induction of HSPs did not affect protein aggregation or charge variants. These findings suggest that inducing and manipulating HSP expression can be a valuable strategy for improving recombinant protein production in biopharmaceutical processes.
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Affiliation(s)
- Morteza Jaffaraghaei
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
| | - Hossein Ghafouri
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
| | - Behrouz Vaziri
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Taheri
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
| | - Yeganeh Talebkhan
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mansooreh Heravi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Parand
- Department of Research and Development, PersisgenPar, Tehran, Iran
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Zarei S, Ghafouri H, Vahdatiraad L, Moghaddam VA, Sohrabi T, Heidari B. Using heat shock protein (HSP) inducers as an approach to increase the viability of sterlet (Pisces; Acipenseridae; Acipenser ruthenus) cells against environmental diazinon toxicity. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133194. [PMID: 38086298 DOI: 10.1016/j.jhazmat.2023.133194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/19/2023] [Accepted: 12/04/2023] [Indexed: 02/08/2024]
Abstract
Diazinon (DZN) is an organophosphate pesticide frequently used in agriculture and released into aquatic environments. In this study, sterlet sturgeon cells were exposed to DZN to investigate possible defense mechanisms via HSP induction (HSPi). Liver, kidney, and gill cells of Acipenser ruthenus were isolated and cultured and then treated with HSPi (Pro-Tex®, amygdalin, and a novel pirano-piranazole-based synthesized compound: SZ) in the presence and absence of DZN. MTT assays were used to evaluate the effects of different HSPis and their combinations with DZN. Western blotting analysis was conducted to evaluate HSP27, HSP70, and HSP90 expression patterns in each group. The highest rates of caspase-3 and caspase-8 activities were found in the DZN group, whereas HSPi treatment resulted in the lowest rates. The combination of HSPi+DZN resulted in increased HSP levels and antioxidant parameters but decreased cortisol, immune parameters, and metabolic enzymes. Many of the studied parameters (caspases, acetylcholinesterase, antioxidant, immune, and metabolic parameters) showed significant correlations with HSP expression, indicating that HSPs may be associated with markers of sterlet cell health. The results of this study demonstrate that using HSP inducers may be a powerful and reliable way to increase A. ruthenus resistance prior to exposure to DZN.
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Affiliation(s)
- Sevda Zarei
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - Hossein Ghafouri
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran; Department of Marine Sciences, the Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran.
| | - Leila Vahdatiraad
- Department of Marine Sciences, the Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran
| | | | - Tooraj Sohrabi
- International Sturgeon Research Institute, Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Organization (AREEO), Tehran, Iran
| | - Behrooz Heidari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran; Department of Marine Sciences, the Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran.
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Zarei S, Ghafouri H, Vahdatiraad L, Heidari B, Sohrabi T. Enhancing resistance and cell survival in Acipenser ruthenus liver, gill, and kidney cells: The potential of heat shock protein inducers against PAH-benzo[a]pyrene stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:9445-9460. [PMID: 38191735 DOI: 10.1007/s11356-024-31884-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/02/2024] [Indexed: 01/10/2024]
Abstract
The Caspian Sea has faced many environmental challenges, such as oil pollution. Heat shock proteins (HSPs) play a critical role in stress conditions and physiological changes caused by disease or injury. By evaluating the effects of various HSP inducers (HSPi), including Pro-Tex® (NOP: 800 mM), amygdalin (AMG: 80 mM), and a novel synthetic compound derived from pirano piranazole (SZ: 80 µm) on isolated cells from Sterlet Sturgeon (Acipenser ruthenus) treated with 75% IC50 PAH-benzo[a]pyrene (BaP; B75). This study examines whether there is a correlation between exposure to the BaP pollutant and HSPs in fish. In vitro, after culturing cells from the liver, kidney, and gills, they were treated with HSPi compounds in the presence and absence of BaP. Western blotting was used to assess HSP27, HSP70, and HSP90 expression patterns. A variety of enzyme activities were measured before (without treatment) and after treatment with HSPis and HSPi + B75, including cytochrome P450 (CYP450) activity, specific enzyme activity for acetylcholinesterase (AChE), antioxidant capacity, liver indicator enzymes, cortisol levels, and immunity parameters. When compared to the control group, cells treated with B75 showed the lowest AChE enzyme activity (p < 0.0001). CYP450 activity was highest in group B75, while HSPi caused the opposite effect (p < 0.0001). HSPi + B75 increased HSP levels and antioxidant parameters while decreasing cortisol and liver indicator enzymes (p < 0.0001). HSPi may be a powerful and reliable method for enhancing the resistance of A. ruthenus to BaP stresses before exposure. Treating cells with HSP-inducing compounds, such as NOP, AMG, and SZ, can assist them in managing stress and increase HSP (27, 70, and 90) protein expression. Furthermore, the study findings suggest that HSPis can also mitigate the adverse effects of stress, ultimately increasing cell survival and resistance.
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Affiliation(s)
- Sevda Zarei
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - Hossein Ghafouri
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran.
- Department of Marine Sciences, the Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran.
| | - Leila Vahdatiraad
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
| | - Behrooz Heidari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
- Department of Marine Sciences, the Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran
| | - Tooraj Sohrabi
- International Sturgeon Research Institute, Agricultural Research Education and Organization (AREEO), Iranian Fisheries Sciences Research Institute, Tehran, Iran
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Vaickelionienė R, Petrikaitė V, Vaškevičienė I, Pavilonis A, Mickevičius V. Synthesis of novel sulphamethoxazole derivatives and exploration of their anticancer and antimicrobial properties. PLoS One 2023; 18:e0283289. [PMID: 36952512 PMCID: PMC10035904 DOI: 10.1371/journal.pone.0283289] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 03/06/2023] [Indexed: 03/25/2023] Open
Abstract
A series of new derivatives based on sulfamethoxazole were designed and synthesized in this study. The structures of the new compounds were confirmed based on a comprehensive characterization of spectral data by applied IR and 1H as well as 13C NMR spectroscopy. The prepared compounds were tested for their anticancer and antimicrobial properties. Hydrazone 16b demonstrated convincing anticancer effect against all tested cell cultures such as human prostate carcinoma PPC-1 and human kidney carcinoma CaKi-1 cell lines, and human fibroblasts HF, n = 3. The most promising compound 16b showed higher activity against CaKi-1 cell line than the anticancer drugs axitinib and pazopanib used to treat renal cancer. Also, it was more active in the PPC-1 cell line compared to the approved PARP inhibitor Olaparib. Hydrazone 16b was also found to possess good antimicrobial properties against gram-positive bacteria strains of Staphylococcus aureus, Staphylococcus epidermidis, as well as Bacillus cereus.
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Affiliation(s)
- Rita Vaickelionienė
- Department of Organic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
- * E-mail:
| | - Vilma Petrikaitė
- Laboratory of Drug Targets Histopathology, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Irena Vaškevičienė
- Lithuanian Energy Institute, Laboratory of Heat-Equipment Research and Testing, Kaunas, Lithuania
| | - Alvydas Pavilonis
- Institute of Microbiology and Virology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vytautas Mickevičius
- Department of Organic Chemistry, Kaunas University of Technology, Kaunas, Lithuania
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Taheri M, Aslani S, Ghafouri H, Mohammadi A, Akbary Moghaddam V, Moradi N, Naeimi H. Synthesis, in vitro biological evaluation and molecular modelling of new 2-chloro-3-hydrazinopyrazine derivatives as potent acetylcholinesterase inhibitors on PC12 cells. BMC Chem 2022; 16:7. [PMID: 35193649 PMCID: PMC8864858 DOI: 10.1186/s13065-022-00799-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 02/14/2022] [Indexed: 11/30/2022] Open
Abstract
Background The loss of cholinergic neurotransmission in Alzheimer's disease (AD) patients' brain is accompanied by a reduced concentration of Acetylcholine (ACh) within synaptic clefts. Thus, the use of acetylcholinesterase inhibitors (AChEIs) to block the cholinergic degradation of ACh is a promising approach for AD treatment. In the present study, a series of 2-chloro-3-hydrazinopyrazine derivatives (CHP1-5) were designed, synthesized, and biologically evaluated as potential multifunctional anti-AD agents. Methods In addition, the chemical structures and purity of the synthesized compounds were elucidated through using IR, 1H and 13C NMR, and elemental analyses. Further, the intended compounds were assessed in vitro for their AChE inhibitory and neuroprotective effects. Furthermore, DPPH, FRAP and ABTS assays were utilized to determine their antioxidant activity. The statistical analysis was performed using one-way ANOVA. Results Based on the results, CHP4 and CHP5 exhibited strong AChE inhibitory effects with the IC50 values of 3.76 and 4.2 µM compared to the donepezil (0.53 µM), respectively. The study examined the effect and molecular mechanism of CHP4 on the Ab1–42-induced cytotoxicity in differentiated PC12 cells. At concentrations of 0–100 μM, CHP4 was non-toxic in PC12. Additionally, Ab1–42 significantly stimulated tau hyperphosphorylation and induced differentiated PC12 cell death. Further, CHP4 resulted in diminishing the Ab1–42-induced toxicity in PC12 cell significantly. CHP4 at 30 μM concentration significantly increased the Ab1–42-induced HSP70 expression and decreased tau hyperphosphorylation. Conclusions According to the results of our studies CHP4 can be considered as safe and efficient AChEI and employed as a potential multifunctional anti-AD agent. Supplementary Information The online version contains supplementary material available at 10.1186/s13065-022-00799-w.
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Affiliation(s)
- Maryam Taheri
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
| | - Samira Aslani
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
| | - Hossein Ghafouri
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran. .,Department of Marine Sciences, The Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran.
| | - Asadollah Mohammadi
- Department of Chemistry, Faculty of Sciences, University of Guilan, Rasht, Iran
| | | | - Nastarn Moradi
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
| | - Hananeh Naeimi
- Department of Biology, Faculty of Basic Sciences, University of Guilan, Rasht, Iran
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He HD, Zhang ZK, Tang HB, Xu YQ, Xu XB, Cao ZY, Xu H, Li Y. Manganese-mediated reductive N, N-dialkylation of nitroarenes: a dramatic NiI 2 effect. Org Chem Front 2022. [DOI: 10.1039/d2qo00928e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A dramatic NiI2 effect has been found for Mn-mediated reductive N,N-dialkylation of nitroaromatics.
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Affiliation(s)
- Hua-Dong He
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Zhi-Kai Zhang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Hao-Bo Tang
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Yuan-Qing Xu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Xiao-Bo Xu
- College of Chemistry and Pharmaceutical Engineering, Huanghuai University, Zhumadian, 463000, China
| | - Zhong-Yan Cao
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Hao Xu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Yang Li
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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