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Jang L, Kim A, Park CS, Moon C, Kim M, Kim J, Yang S, Jang JY, Jeong CM, Lee HS, Park J, Kim K, Byeon H, Kim HH. Fucosylation and galactosylation in N-glycans of bovine intestinal alkaline phosphatase and their role in its enzymatic activity. Arch Biochem Biophys 2024; 758:110069. [PMID: 38914216 DOI: 10.1016/j.abb.2024.110069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
Bovine intestinal alkaline phosphatase (biALP), a membrane-bound plasma metalloenzyme, maintains intestinal homeostasis, regulates duodenal surface pH, and protects against infections caused by pathogenic bacteria. The N-glycans of biALP regulate its enzymatic activity, protein folding, and thermostability, but their structures are not fully reported. In this study, the structures and quantities of the N-glycans of biALP were analyzed by liquid chromatography-electrospray ionization-high energy collision dissociation-tandem mass spectrometry. In total, 48 N-glycans were identified and quantified, comprising high-mannose [6 N-glycans, 33.1 % (sum of relative quantities of each N-glycan)], hybrid (6, 11.9 %), and complex (36, 55.0 %) structures [bi- (13, 26.1 %), tri- (16, 21.5 %), and tetra-antennary (7, 7.4 %)]. These included bisecting N-acetylglucosamine (33, 56.6 %), mono-to tri-fucosylation (32, 53.3 %), mono-to tri-α-galactosylation (16, 20.7 %), and mono-to tetra-β-galactosylation (36, 58.5 %). No sialylation was identified. N-glycans with non-bisecting GlcNAc (9, 10.3 %), non-fucosylation (10, 13.6 %), non-α-galactosylation (26, 46.2 %), and non-β-galactosylation (6, 8.4 %) were also identified. The activity (100 %) of biALP was reduced to 37.3 ± 0.2 % (by de-fucosylation), 32.7 ± 2.9 % (by de-α-galactosylation), and 0.2 ± 0.2 % (by de-β-galactosylation), comparable to inhibition by 10-4 to 101 mM EDTA, a biALP inhibitor. These results indicate that fucosylated and galactosylated N-glycans, especially β-galactosylation, affected the activity of biALP. This study is the first to identify 48 diverse N-glycan structures and quantities of bovine as well as human intestinal ALP and to demonstrate the importance of the role of fucosylation and galactosylation for maintaining the activity of biALP.
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Affiliation(s)
- Leeseul Jang
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Ahyeon Kim
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Chi Soo Park
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Chulmin Moon
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Mirae Kim
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Jieun Kim
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Subin Yang
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Ji Yeon Jang
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Chang Myeong Jeong
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Han Seul Lee
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Juhee Park
- Department of Pharmaceutical Regulatory Sciences, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Kyuran Kim
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Haeun Byeon
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Ha Hyung Kim
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea; Department of Pharmaceutical Regulatory Sciences, Graduate School of Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
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Liu H, Huang J, Zhang H, Xi S, Luo T, Jiang X. Effect and mechanism of Mn 2+ on urease activity during anaerobic biological treatment of landfill leachate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41290-41300. [PMID: 38849617 DOI: 10.1007/s11356-024-33907-5] [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: 12/21/2023] [Accepted: 06/01/2024] [Indexed: 06/09/2024]
Abstract
As a crucial hydrolytic enzyme, urease plays a vital role in anaerobic biological treatment. It is well-known that manganese ions are abundant in landfill leachate, but their concentration fluctuates significantly. However, few studies have investigated the effect and mechanism of different concentrations of Mn2+ on urease activity during anaerobic biological treatment of landfill leachate. This paper aimed to investigate the effects and mechanisms of different concentrations of Mn2+ on urease activity. The results showed that an appropriate amount of Mn2+ could significantly enhance urease activity, while a high concentration of Mn2+ could inhibit it. Insight into the mechanisms behind this phenomenon, various methods such as Zeta potential, particle size, ultraviolet spectroscopy, fluorescence spectroscopy, Fourier transform infrared spectroscopy, and statistical analysis were employed in our study. Research suggested that, on one hand, Mn2+ may form hydrogen bonds with the side chain amino or carboxyl groups of urease amino acid residues, affecting the structure of urease through hydrogen bonding. Additionally, Mn2+ also binds to urease through hydrophobic interactions. On the other hand, the C-OH and C-N functional groups in urease have a strong affinity for Mn2+, and changes in these functional groups can greatly enhance the activity of urease. Furthermore, under the action of high concentrations of Mn2+, while the structure of urease becomes more stable, there is also a steric hindrance phenomenon that affects the substrate from entering the catalytic center. Therefore, studying the mechanism of Mn2+ affecting urease activity has significant biological significance and provides a new perspective for exploring the impact of metals on anaerobic bioprocessing of landfill leachate.
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Affiliation(s)
- Hao Liu
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei, 230601, Anhui Province, China
- Anhui Provincial Key Laboratory of Environment Pollution Control and Resource Reuse, Hefei, 230601, China
- Anhui Research Academy of Ecological Civilization, Hefei, 230601, China
| | - Jian Huang
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei, 230601, Anhui Province, China
- Anhui Provincial Key Laboratory of Environment Pollution Control and Resource Reuse, Hefei, 230601, China
- Anhui Research Academy of Ecological Civilization, Hefei, 230601, China
| | - Hua Zhang
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei, 230601, Anhui Province, China
- Anhui Provincial Key Laboratory of Environment Pollution Control and Resource Reuse, Hefei, 230601, China
- Anhui Research Academy of Ecological Civilization, Hefei, 230601, China
| | - Shanshan Xi
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei, 230601, Anhui Province, China.
- Anhui Provincial Key Laboratory of Environment Pollution Control and Resource Reuse, Hefei, 230601, China.
- Anhui Research Academy of Ecological Civilization, Hefei, 230601, China.
| | - Tao Luo
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei, 230601, Anhui Province, China
- Anhui Provincial Key Laboratory of Environment Pollution Control and Resource Reuse, Hefei, 230601, China
- Anhui Research Academy of Ecological Civilization, Hefei, 230601, China
| | - Xinqin Jiang
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei, 230601, Anhui Province, China
- Anhui Provincial Key Laboratory of Environment Pollution Control and Resource Reuse, Hefei, 230601, China
- Anhui Research Academy of Ecological Civilization, Hefei, 230601, China
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Hashem O, Zaib S, Zaraei SO, Javed H, Kedia RA, Anbar HS, Khan I, Ravi A, El-Gamal MI, Khoder G. Design and discovery of urease and Helicobacter pylori inhibitors based on benzofuran/benzothiophene-sulfonate and sulfamate scaffolds for the treatment of ureolytic bacterial infections. Int J Biol Macromol 2024; 271:132502. [PMID: 38768915 DOI: 10.1016/j.ijbiomac.2024.132502] [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: 02/26/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
A series of sulfonate and sulfamate derivatives bearing benzofuran or benzothiophene scaffold exhibited potent inhibitory effect on urease enzyme. Most of the derivatives exhibited significantly higher potency than thiourea, the standard inhibitor. Compound 1s was identified as the most potent urease inhibitor with an IC50 value of 0.42 ± 0.08 μM, which is 53-fold more potent than thiourea, positive control (IC50 = 22.3 ± 0.031 μM). The docking results further revealed the binding interactions towards the urease active site. Phenotypic screening revealed that compounds 1c, 1d, 1e, 1f, 1j, 1n, and 1t exhibit high potency against H. pylori with MIC values ranging from 0.00625 to 0.05 mM and IC50 values ranging from 0.0031 to 0.0095 mM, much more potent than the positive control, acetohydroxamic acid (MIC and IC50 values were 12.5 and 7.38 mM, respectively). Additional studies were performed to investigate the toxicity of these compounds against the gastric epithelial cell line (AGS) and their selectivity profile against E. coli, and five Lactobacillus species representative of the gut microflora. Permeability characteristics of the most promising derivatives were investigated in Caco-2 cell line. The results indicate that the compounds could be targeted in the GIT only without systemic side effects.
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Affiliation(s)
- Omar Hashem
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Sumera Zaib
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore 54590, Pakistan.
| | - Seyed-Omar Zaraei
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Hira Javed
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore 54590, Pakistan
| | - Reena A Kedia
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Hanan S Anbar
- Department of Pharmaceutical Sciences, Dubai Pharmacy College for Girls, Dubai 19099, United Arab Emirates.
| | - Imtiaz Khan
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Anil Ravi
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Mohammed I El-Gamal
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Ghalia Khoder
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates.
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Svane S, Lyngsie MC, Klitgaard JK, Karring H. Synergistic inhibition of ureolytic activity and growth of Klebsiella pneumoniae in vitro suggests cobinding of fluoride and acetohydroxamic acid at the urease active site and provides a novel strategy to combat ureolytic bacteria. Heliyon 2024; 10:e31209. [PMID: 38826744 PMCID: PMC11141357 DOI: 10.1016/j.heliyon.2024.e31209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/18/2024] [Accepted: 05/13/2024] [Indexed: 06/04/2024] Open
Abstract
The ability of ureolytic bacteria to break down stable urea to alkaline ammonia leads to several environmental and health challenges. Ureolytic bacteria such as Helicobacter pylori, Klebsiella pneumoniae, and Proteus mirabilis can become pathogenic and cause persistent infections that can be difficult to treat. Inhibiting urease activity can reduce the growth and pathogenicity of ureolytic bacteria. In the present in vitro study, we investigated the synergistic effects of tannic acid (TA) and the urease inhibitors fluoride (F-) and acetohydroxamic acid (AHA). The concentration of AHA needed for efficient inhibition of the ureolytic activity of K. pneumoniae can be significantly reduced if AHA is coapplied with tannic acid and sodium fluoride (NaF). Thus, only 1.20 μmol l-1 AHA in combination with 0.30 mmol l-1 tannic acid and 0.60 mmol l-1 NaF delayed the onset of ureolytic pH increase by 95.8 % and increased the growth lag phase by 124.3 % relative to untreated K. pneumoniae. At these concentrations, without AHA, TA and NaF increased the onset of the ureolytic pH change by only 37.0 % and the growth lag phase by 52.5 %. The strong inhibition obtained with low concentrations of AHA in triple-compound treatments suggests cobinding of F- and AHA at the urease active site and could reduce the side effects of AHA when it is employed as a drug against e.g. urinary tract infections (UTIs) and blocked catheters. This study reports the basis for a promising novel therapeutic strategy to combat infections caused by ureolytic bacteria and the formation of urinary tract stones and crystalline biofilms on catheters.
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Affiliation(s)
- Simon Svane
- Department of Green Technology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Mie C. Lyngsie
- Department of Biochemistry and Molecular Biology, Research Unit of Molecular Microbiology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
| | - Janne K. Klitgaard
- Department of Biochemistry and Molecular Biology, Research Unit of Molecular Microbiology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
- Institute of Clinical Research, Research Unit of Clinical Microbiology, University of Southern Denmark, J. B. Winsløws Vej 21, 2. sal, 5000, Odense C, Denmark
| | - Henrik Karring
- Department of Green Technology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark
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Munir R, Zaib S, Zia-ur-Rehman M, Javed H, Roohi A, Zaheer M, Fatima N, Bhat MA, Khan I. Exploration of morpholine-thiophene hybrid thiosemicarbazones for the treatment of ureolytic bacterial infections via targeting urease enzyme: Synthesis, biochemical screening and computational analysis. Front Chem 2024; 12:1403127. [PMID: 38855062 PMCID: PMC11157103 DOI: 10.3389/fchem.2024.1403127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 05/06/2024] [Indexed: 06/11/2024] Open
Abstract
An important component of the pathogenicity of potentially pathogenic bacteria in humans is the urease enzyme. In order to avoid the detrimental impact of ureolytic bacterial infections, the inhibition of urease enzyme appears to be an appealing approach. Therefore, in the current study, morpholine-thiophene hybrid thiosemicarbazone derivatives (5a-i) were designed, synthesized and characterized through FTIR, 1H NMR, 13C NMR spectroscopy and mass spectrometry. A range of substituents including electron-rich, electron-deficient and inductively electron-withdrawing groups on the thiophene ring was successfully tolerated. The synthesized derivatives were evaluated in vitro for their potential to inhibit urease enzyme using the indophenol method. The majority of compounds were noticeably more potent than the conventional inhibitor, thiourea. The lead inhibitor, 2-(1-(5-chlorothiophen-2-yl)ethylidene)-N-(2-morpholinoethyl)hydrazinecarbothioamide (5g) inhibited the urease in an uncompetitive manner with an IC50 value of 3.80 ± 1.9 µM. The findings of the docking studies demonstrated that compound 5g has a strong affinity for the urease active site. Significant docking scores and efficient binding free energies were displayed by the lead inhibitor. Finally, the ADME properties of lead inhibitor (5g) suggested the druglikeness behavior with zero violation.
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Affiliation(s)
- Rubina Munir
- Department of Chemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Sumera Zaib
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | | | - Hira Javed
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Ayesha Roohi
- Department of Chemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Muhammad Zaheer
- Applied Chemistry Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
| | - Nabiha Fatima
- Department of Chemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Mashooq Ahmad Bhat
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Imtiaz Khan
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, Manchester, United Kingdom
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Nasar J, Ahmad M, Gitari H, Tang L, Chen Y, Zhou XB. Maize/soybean intercropping increases nutrient uptake, crop yield and modifies soil physio-chemical characteristics and enzymatic activities in the subtropical humid region based in Southwest China. BMC PLANT BIOLOGY 2024; 24:434. [PMID: 38773357 PMCID: PMC11106902 DOI: 10.1186/s12870-024-05061-0] [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: 12/05/2023] [Accepted: 04/24/2024] [Indexed: 05/23/2024]
Abstract
Intercropping, a widely adopted agricultural practice worldwide, aims to increase crop yield, enhance plant nutrient uptake, and optimize the utilization of natural resources, contributing to sustainable farming practices on a global scale. However, the underlying changes in soil physio-chemical characteristics and enzymatic activities, which contribute to crop yield and nutrient uptake in the intercropping systems are largely unknown. Consequently, a two-year (2021-2022) field experiment was conducted on the maize/soybean intercropping practices with/without nitrogen (N) fertilization (i.e., N0; 0 N kg ha-1 and N1; 225 N kg ha-1 for maize and 100 N kg ha-1 for soybean ) to know whether such cropping system can improve the nutrients uptake and crop yields, soil physio-chemical characteristics, and soil enzymes, which ultimately results in enhanced crop yield. The results revealed that maize intercropping treatments (i.e., N0MI and N1MI) had higher crop yield, biomass dry matter, and 1000-grain weight of maize than mono-cropping treatments (i.e., N0MM, and N1MM). Nonetheless, these parameters were optimized in N1MI treatments in both years. For instance, N1MI produced the maximum grain yield (10,105 and 11,705 kg ha-1), biomass dry matter (13,893 and 14,093 kg ha-1), and 1000-grain weight (420 and 449 g) of maize in the year 2021 and 2022, respectively. Conversely, soybean intercropping treatments (i.e., N0SI and N1SI) reduced such yield parameters for soybean. Also, the land equivalent ratio (LER) and land equivalent ratio for N fertilization (LERN) values were always greater than 1, showing the intercropping system's benefits in terms of yield and improved resource usage. Moreover, maize intercropping treatments (i.e., N0MI and N1MI) and soybean intercropping treatments (i.e., N0SI and N1SI) significantly (p < 0.05) enhanced the nutrient uptake (i.e., N, P, K, Ca, Fe, and Zn) of maize and soybean, however, these nutrients uptakes were more prominent in N1MI and N1SI treatments of maize and soybean, respectively in both years (2021 and 2022) compared with their mono-cropping treatments. Similarly, maize-soybean intercropping treatments (i.e., N0MSI and N1MSI) significantly (p < 0.05) improved the soil-based N, P, K, NH4, NO3, and soil organic matter, but, reduced the soil pH. Such maize-soybean intercropping treatments also improved the soil enzymatic activities such as protease (PT), sucrose (SC), acid phosphatase (AP), urease (UE), and catalase (CT) activities. This indicates that maize-soybean intercropping could potentially contribute to higher and better crop yield, enhanced plant nutrient uptake, improved soil nutrient pool, physio-chemical characteristics, and related soil enzymatic activities. Thus, preferring intercropping to mono-cropping could be a preferable choice for ecologically viable agricultural development.
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Affiliation(s)
- Jamal Nasar
- Guangxi Key Laboratory of Agro‑Environment and Agro‑Products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Munir Ahmad
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, China
| | - Harun Gitari
- Department of Agricultural Science and Technology, School of Agriculture and Environmental Sciences, Kenyatta University, P.O. Box 43844-00100, Nairobi, Kenya
| | - Li Tang
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, China
- College of Resources and Environmental Science, Yunnan Agricultural University, Kunming, 650201, China
| | - Yuan Chen
- Guangxi Academy of Agricultural Sciences, Nanning, 530007, China.
| | - Xun-Bo Zhou
- Guangxi Key Laboratory of Agro‑Environment and Agro‑Products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Nanning, 530004, China.
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7
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Sychantha D, Chen X, Koteva K, Prehna G, Wright GD. Targeting bacterial nickel transport with aspergillomarasmine A suppresses virulence-associated Ni-dependent enzymes. Nat Commun 2024; 15:4036. [PMID: 38740750 DOI: 10.1038/s41467-024-48232-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 04/23/2024] [Indexed: 05/16/2024] Open
Abstract
Microbial Ni2+ homeostasis underpins the virulence of several clinical pathogens. Ni2+ is an essential cofactor in urease and [NiFe]-hydrogenases involved in colonization and persistence. Many microbes produce metallophores to sequester metals necessary for their metabolism and starve competing neighboring organisms. The fungal metallophore aspergillomarasmine A (AMA) shows narrow specificity for Zn2+, Ni2+, and Co2+. Here, we show that this specificity allows AMA to block the uptake of Ni2+ and attenuate bacterial Ni-dependent enzymes, offering a potential strategy for reducing virulence. Bacterial exposure to AMA perturbs H2 metabolism, ureolysis, struvite crystallization, and biofilm formation and shows efficacy in a Galleria mellonella animal infection model. The inhibition of Ni-dependent enzymes was aided by Zn2+, which complexes with AMA and competes with the native nickelophore for the uptake of Ni2+. Biochemical analyses demonstrated high-affinity binding of AMA-metal complexes to NikA, the periplasmic substrate-binding protein of the Ni2+ uptake system. Structural examination of NikA in complex with Ni-AMA revealed that the coordination geometry of Ni-AMA mimics the native ligand, Ni-(L-His)2, providing a structural basis for binding AMA-metal complexes. Structure-activity relationship studies of AMA identified regions of the molecule that improve NikA affinity and offer potential routes for further developing this compound as an anti-virulence agent.
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Affiliation(s)
- David Sychantha
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
- Department of Chemistry, University of Waterloo, Waterloo, ON, Canada
| | - Xuefei Chen
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Kalinka Koteva
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Gerd Prehna
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Gerard D Wright
- David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, ON, Canada.
- M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada.
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada.
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8
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Viana LPS, Naves GM, Medeiros IG, Guimarães AS, Sousa ES, Santos JCC, Freire NML, de Aquino TM, Modolo LV, de Fátima Â, da Silva CM. Synergizing structure and function: Cinnamoyl hydroxamic acids as potent urease inhibitors. Bioorg Chem 2024; 146:107247. [PMID: 38493635 DOI: 10.1016/j.bioorg.2024.107247] [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: 12/27/2023] [Revised: 02/16/2024] [Accepted: 02/27/2024] [Indexed: 03/19/2024]
Abstract
The current investigation encompasses the structural planning, synthesis, and evaluation of the urease inhibitory activity of a series of molecular hybrids of hydroxamic acids and Michael acceptors, delineated from the structure of cinnamic acids. The synthesized compounds exhibited potent urease inhibitory effects, with IC50 values ranging from 3.8 to 12.8 µM. Kinetic experiments unveiled that the majority of the synthesized hybrids display characteristics of mixed inhibitors. Generally, derivatives containing electron-withdrawing groups on the aromatic ring demonstrate heightened activity, indicating that the increased electrophilicity of the beta carbon in the Michael Acceptor moiety positively influences the antiureolytic properties of this compounds class. Biophysical and theoretical investigations further corroborated the findings obtained from kinetic assays. These studies suggest that the hydroxamic acid core interacts with the urease active site, while the Michael acceptor moiety binds to one or more allosteric sites adjacent to the active site.
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Affiliation(s)
- Luciana P S Viana
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Giovanna M Naves
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Isabela G Medeiros
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ari S Guimarães
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Emilly S Sousa
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Josué C C Santos
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Nathália M L Freire
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Thiago M de Aquino
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Luzia V Modolo
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ângelo de Fátima
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Cleiton M da Silva
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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9
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Le TH, Ho DNP, Nguyen HX, Van Do TN, Nguyen MTT, Huynh LK, Nguyen NT. In vitro biological evaluation and in silico studies of linear diarylheptanoids from Curcuma aromatica Salisb. as urease inhibitors. RSC Med Chem 2024; 15:1046-1054. [PMID: 38516598 PMCID: PMC10953472 DOI: 10.1039/d3md00645j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/31/2024] [Indexed: 03/23/2024] Open
Abstract
Plants of the Zingiberaceae family, specifically those belonging to the Curcuma species, are commonly under consideration as potential therapeutic agents for the management of gastrointestinal diseases. In this study, we carried out a phytochemical study on Curcuma aromatica Salisb. (or so-called "Nghe trang" in Vietnamese) grown in Vietnam, which yields three newly discovered 3,5-diacetoxy diarylheptanoids (1-3) and six known 3,5-dihydroxyl diarylheptanoids (4-9). The bioactivity assessment shows that all isolated compounds, except compounds 3, 7, and 8, could inhibit urease. Compounds 4 and 9 significantly inhibit urease, with an IC50 value of 9.6 and 21.4 μM, respectively, more substantial than the positive control, hydroxyurea (IC50 = 77.4 μM). The structure-activity relationship (SAR) of linear diarylheptanoids was also established, suggesting that the hydroxyl groups at any position of skeleton diarylheptanoids are essential for exerting anti-urease action. Through a comparative analysis of the binding sites of hydroxyurea and diarylheptanoid compounds via our constructed in silico model, the mechanism of action of diarylheptanoid compounds is predicted to bind to the dynamic region close to the dinickel active center, resulting in a loss of catalytic activity. Such insights certainly help design and/or find diarylheptanoid-based compounds for treating gastric ulcers through inhibiting urease.
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Affiliation(s)
- Tho Huu Le
- Faculty of Chemistry, University of Science Ho Chi Minh City Vietnam
- Research Lab for Drug Discovery and Development, University of Science Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
| | - Dung Ngoc Phuong Ho
- School of Chemical and Environmental Engineering, International University Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
| | - Hai Xuan Nguyen
- Faculty of Chemistry, University of Science Ho Chi Minh City Vietnam
- Research Lab for Drug Discovery and Development, University of Science Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
| | - Truong Nhat Van Do
- Faculty of Chemistry, University of Science Ho Chi Minh City Vietnam
- Research Lab for Drug Discovery and Development, University of Science Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
| | - Mai Thanh Thi Nguyen
- Faculty of Chemistry, University of Science Ho Chi Minh City Vietnam
- Research Lab for Drug Discovery and Development, University of Science Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
| | - Lam K Huynh
- School of Chemical and Environmental Engineering, International University Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
| | - Nhan Trung Nguyen
- Faculty of Chemistry, University of Science Ho Chi Minh City Vietnam
- Research Lab for Drug Discovery and Development, University of Science Ho Chi Minh City Vietnam
- Vietnam National University of Ho Chi Minh City Ho Chi Minh City Vietnam
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10
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Quradha MM, Duru ME, Kucukaydin S, Tamfu AN, Iqbal M, Bibi H, Khan R, Ceylan O. Comparative assessment of phenolic composition profile and biological activities of green extract and conventional extracts of Salvia sclarea. Sci Rep 2024; 14:1885. [PMID: 38253648 PMCID: PMC10803343 DOI: 10.1038/s41598-024-51661-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
In recent years, there have been an attempt to develop safe and environmental friendly solvents to replace conventional solvents, and use for extraction bioactive compounds from natural sources. A current investigation involved the preparation of green, methanolic, and ultrasonic extracts of S. sclarea, and compared their phenolic profiling using HPLC-DAD, antibacterial, antioxidant, and enzyme inhibition activities. The HPLC-DAD analysis revealed that Rosmarinic acid was the main content in all extracts, with Ellagic acid only present in the green extract. The green extract exhibited superior anti-biofilm activity against S. Aureus and E. Faecalis compared to the other extracts at MIC concentration. Furthermore, the green extract also displayed the highest inhibition of swarming motility in P. Aeruginosa with inhibition range 68.0 ± 2.1 (MIC) to 19.5 ± 0.6 (MIC/4). and better enzyme inhibitory activity against BChE (with IC50 = 131.6 ± 0.98 µg/mL) and AChE (with inhibition 47.00 ± 1.50%) compared to the other extracts; while, the ultrasonic extract showed strong inhibition of violacein production by C. Violaceum with a inhibition range 05.5 ± 0.1 (MIC/32) to 100 ± 0.00 (MIC), followed by the green extract with a inhibition range 15.0 ± 0.5 (MIC/8) to 100 ± 0.00 (MIC), additionally, the ultrasonic and methanoic extracts showed significant activity against urease enzyme with (IC50 = 171.6 ± 0.95 µg/mL and IC5 0 = 187.5 ± 1.32 µg/mL) respectively. Both the green and methanolic extracts showed considerable antioxidant activities, as β-carotene-linoleic acid (IC50 = 5.61 ± 0.47 µg/mL and 5.37 ± 0.27 µg/mL), DPPH· (IC50 = 19.20 ± 0.70 µg/mL and 16.31 ± 0.23 µg/mL), ABTS·+(IC50 = 8.64 ± 0.63 µg/mL and 6.50 ± 0.45 µg/mL) and CUPRAC (A0.5 = 17.22 ± 0.36 µg/mL and 12.28 ± 0.12 µg/mL) respectively, likewise the green extract performing better in metal chelating compared to the other extracts. The green extraction is reported as a cost effective and solvent free method for extracting natural products that produces compounds free of toxic chemicals. This could be the method to be used in the industries as a renewable method.
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Affiliation(s)
- Mohammed Mansour Quradha
- College of Education, Seiyun University, Seiyun, Yemen.
- Pharmacy Department, Medical Sciences, Aljanad University for Science and Technology, Taiz, Yemen.
| | - Mehmet Emin Duru
- Department of Chemistry, Faculty of Science, Mugla Sitki Kocman University, Mugla, 48000, Turkey
| | - Selcuk Kucukaydin
- Department of Medical Services and Techniques, Koycegiz Vocational School of Health Services, Mugla Sıtkı Kocman University, Koycegiz/Mugla, Turkey
| | - Alfred Ngenge Tamfu
- Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, 454, Ngaoundere, Cameroon
| | - Mudassar Iqbal
- Department of Agricultural Chemistry and Biochemistry, The University of Agriculture, Peshawar, 25000, Pakistan
| | - Hamida Bibi
- Department of Environmental Sciences, Abdul Wali Khan University, Mardan, Pakistan
| | - Rasool Khan
- Institute of Chemical Sciences, University of Peshawar, Peshawar, 25120, Pakistan
| | - Ozgur Ceylan
- Food Quality Control and Analysis Program, Ula Ali Kocman Vocational School, Mugla Sitki Kocman University, Ula Mugla, 48147, Turkey
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11
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Martinelli G, Fumagalli M, Pozzoli C, Nicotra G, Vicentini SF, Maranta N, Sangiovanni E, Dell’Agli M, Piazza S. Exploring In Vitro the Combination of Cistus × incanus L. and Castanea sativa Mill. Extracts as Food Supplement Ingredients against H. pylori Infection. Foods 2023; 13:40. [PMID: 38201068 PMCID: PMC10778332 DOI: 10.3390/foods13010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Cistus spp. have been traditionally used for inflammatory and infectious disorders, including gastrointestinal ailments, in the Mediterranean area. Among them, Cistus × incanus L. is one of the most frequently cited species in the literature for a variety of biological activities which include inflammatory diseases. Cistus spp. aerial parts are rich in polyphenols such as condensed and hydrolysable tannins, procyanidins, and flavonoids, which show gastroprotective activities. The purpose of the present study is to investigate the biological activities of a hydroalcoholic extract from Cistus × incanus L. aerial parts in gastric epithelial cells (GES-1) infected with H. pylori. The extracts inhibited IL-8 and NF-κB induced by H. pylori and showed antibacterial activity after simulated digestion. Since our previous paper reported interesting results on the ability of Castanea sativa Mill. leaf extract to decrease inflammatory conditions in H. pylori-infected gastric cells, the combination of Castanea sativa and Cistus × incanus extracts was also investigated, showing strong anti-inflammatory activity and inhibition of bacterial adhesion. This association of botanicals is proposed herein as a novel food supplement capable of counteracting gastric inflammatory conditions.
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Affiliation(s)
- Giulia Martinelli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
| | - Marco Fumagalli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
| | - Carola Pozzoli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
| | - Giovanna Nicotra
- Estratti Piante Officinali EPO s.r.l., 20141 Milan, Italy; (G.N.); (S.F.V.)
| | | | - Nicole Maranta
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
| | - Enrico Sangiovanni
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
| | - Mario Dell’Agli
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
| | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences “Rodolfo Paoletti”, University of Milan, 20133 Milan, Italy; (G.M.); (M.F.); (C.P.); (N.M.); (E.S.); (S.P.)
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12
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Manoharan A, Farrell J, Aldilla VR, Whiteley G, Kriel E, Glasbey T, Kumar N, Moore KH, Manos J, Das T. N-acetylcysteine prevents catheter occlusion and inflammation in catheter associated-urinary tract infections by suppressing urease activity. Front Cell Infect Microbiol 2023; 13:1216798. [PMID: 37965267 PMCID: PMC10641931 DOI: 10.3389/fcimb.2023.1216798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 09/19/2023] [Indexed: 11/16/2023] Open
Abstract
Introduction Proteus mirabilis is a key pathobiont in catheter-associated urinary tract infections (CA-UTIs), which is well known to form crystalline biofilms that occlude catheters. Urease activity alkylates urine through the release of ammonia, consequentially resulting in higher levels of Mg2+ and Ca2+ and formation of crystals. In this study, we showed that N-acetyl cysteine (NAC), a thiol antioxidant, is a potent urease inhibitor that prevents crystalline biofilm formation. Methods To quantify urease activity, Berthelot's method was done on bacterial extracts treated with NAC. We also used an in vitro catheterised glass bladder model to study the effect of NAC treatment on catheter occlusion and biofilm encrustation in P. mirabilis infections. Inductively-coupled plasma mass spectrometry (ICP-MS) was performed on catheter samples to decipher elemental profiles. Results NAC inhibits urease activity of clinical P. mirabilis isolates at concentrations as low as 1 mM, independent of bacterial killing. The study also showed that NAC is bacteriostatic on P. mirabilis, and inhibited biofilm formation and catheter occlusion in an in vitro. A significant 4-8log10 reduction in viable bacteria was observed in catheters infected in this model. Additionally, biofilms in NAC treated catheters displayed a depletion of calcium, magnesium, or phosphates (>10 fold reduction), thus confirming the absence of any urease activity in the presence of NAC. Interestingly, we also showed that not only is NAC anti-inflammatory in bladder epithelial cells (BECs), but that it mutes its inflammatory response to urease and P. mirabilis infection by reducing the production of IL-6, IL-8 and IL-1b. Discussion Using biochemical, microbiological and immunological techniques, this study displays the functionality of NAC in preventing catheter occlusion by inhibiting urease activity. The study also highlights NAC as a strong anti-inflammatory antibiofilm agent that can target both bacterial and host factors in the treatment of CA-UTIs.
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Affiliation(s)
- Arthika Manoharan
- Infection, Immunity and Inflammation Theme, School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Sydney Institute of Infectious Disease, The University of Sydney, Sydney, NSW, Australia
| | - Jessica Farrell
- Infection, Immunity and Inflammation Theme, School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Whiteley Corporation, Tomago, NSW, Australia
| | - Vina R. Aldilla
- School of Chemistry, The University of New South Wales, Sydney, NSW, Australia
| | - Greg Whiteley
- Infection, Immunity and Inflammation Theme, School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Whiteley Corporation, Tomago, NSW, Australia
- School of Medicine, Western Sydney University, NSW, Australia
| | - Erik Kriel
- Whiteley Corporation, Tomago, NSW, Australia
| | | | - Naresh Kumar
- School of Chemistry, The University of New South Wales, Sydney, NSW, Australia
| | - Kate H. Moore
- Department of Urogynaecology, St George Hospital, University of New South Wales, Sydney, NSW, Australia
| | - Jim Manos
- Infection, Immunity and Inflammation Theme, School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Sydney Institute of Infectious Disease, The University of Sydney, Sydney, NSW, Australia
| | - Theerthankar Das
- Infection, Immunity and Inflammation Theme, School of Medical Sciences, Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Sydney Institute of Infectious Disease, The University of Sydney, Sydney, NSW, Australia
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13
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Biondo C. New Insights into the Pathogenesis and Treatment of Urinary Tract Infections. Pathogens 2023; 12:1213. [PMID: 37887729 PMCID: PMC10610534 DOI: 10.3390/pathogens12101213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 10/28/2023] Open
Abstract
About 150 million people around the world experience urinary tract infections (UTI) every year, with adult women 30 times more likely to develop a UTI than men [...].
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Affiliation(s)
- Carmelo Biondo
- Department of Human Pathology, University of Messina, Via C. Valeria n.1, 98125 Messina, Italy
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14
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Sepehri S, Khedmati M. An overview of the privileged synthetic heterocycles as urease enzyme inhibitors: Structure-activity relationship. Arch Pharm (Weinheim) 2023; 356:e2300252. [PMID: 37401193 DOI: 10.1002/ardp.202300252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 07/05/2023]
Abstract
Urease is a metalloenzyme including two Ni2+ ions, found in some plants, bacteria, fungi, microorganisms, invertebrate animals, and animal tissues. Urease acts as a significant virulence factor, mainly in catheter blockage and infective urolithiasis as well as in the pathogenesis of gastric infection. Therefore, studies on urease lead to novel synthetic inhibitors. In this review, the synthesis and antiurease activities of a collection of privileged synthetic heterocycles such as (thio)barbiturate, (thio)urea, dihydropyrimidine, and triazol derivatives were described and discussed according to structure-activity relationship findings in search of the best moieties and substituents that are answerable for encouraging the desired activity even more potent than the standard. It was found that linking substituted phenyl and benzyl rings to the heterocycles led to potent urease inhibitors.
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Affiliation(s)
- Saghi Sepehri
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Medicinal Chemistry, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mina Khedmati
- Students Research Committee, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
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15
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Fatima M, Aslam S, Zafar AM, Irfan A, Khan MA, Ashraf M, Faisal S, Noreen S, Shazly GA, Shah BR, Bin Jardan YA. Exploring the Synthetic Chemistry of Phenyl-3-(5-aryl-2-furyl)- 2-propen-1-ones as Urease Inhibitors: Mechanistic Approach through Urease Inhibition, Molecular Docking and Structure-Activity Relationship. Biomedicines 2023; 11:2428. [PMID: 37760869 PMCID: PMC10525509 DOI: 10.3390/biomedicines11092428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Furan chalcone scaffolds belong to the most privileged and promising oxygen-containing heterocyclic class of compounds, which have a wide spectrum of therapeutic applications in the field of pharmaceutics, pharmacology, and medicinal chemistry. This research described the synthesis of a series of twelve novel and seven reported furan chalcone (conventional synthetic approach) analogues 4a-s through the application of microwave-assisted synthetic methodology and evaluated for therapeutic inhibition potential against bacterial urease enzyme. In the first step, a series of nineteen substituted 5-aryl-2-furan-2-carbaldehyde derivatives 3a-s were achieved in moderate to good yields (40-70%). These substituted 5-aryl-2-furan-2-carbaldehyde derivatives 3a-s were condensed with acetophenone via Claisen-Schmidt condensation to furnish 19 substituted furan chalcone scaffolds 4a-s in excellent yields (85-92%) in microwave-assisted synthetic approach, while in conventional methodology, these furan chalcone 4a-s were furnished in good yield (65-90%). Furan chalcone structural motifs 4a-s were characterized through elemental analysis and spectroscopic techniques. These nineteen (19)-afforded furan chalcones 4a-s were screened for urease inhibitory chemotherapeutic efficacy and most of the furan chalcones displayed promising urease inhibition activity. The most active urease inhibitors were 1-phenyl-3-[5-(2',5'-dichlorophenyl)-2-furyl]-2-propen-1-one 4h with an IC50 value of 16.13 ± 2.45 μM, and 1-phenyl- 3-[5-(2'-chlorophenyl)-2-furyl] -2-propen-1-one 4s with an IC50 value of 18.75 ± 0.85 μM in comparison with reference drug thiourea (IC50 = 21.25 ± 0.15 μM). These furan chalcone derivatives 4h and 4s are more efficient urease inhibitors than reference drug thiourea. Structure-activity relationship (SAR) revealed that the 2,5-dichloro 4h and 2-chloro 4s moiety containing furan chalcone derivatives may be considered as potential lead reagents for urease inhibition. The in silico molecular docking study results are in agreement with the experimental biological findings. The results of this study may be helpful in the future drug discovery and designing of novel efficient urease inhibitory agents from this biologically active class of furan chalcones.
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Affiliation(s)
- Miraj Fatima
- Department of Chemistry, The Women University, Multan 66000, Pakistan
| | - Samina Aslam
- Department of Chemistry, The Women University, Multan 66000, Pakistan
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Ansa Madeeha Zafar
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
- Department of Chemistry, Government Sadiq Women University, Bahawalpur 63100, Pakistan
| | - Ali Irfan
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Misbahul Ain Khan
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Ashraf
- Department of Biotechnology and Biochemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Shah Faisal
- Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Pakistan
| | - Sobia Noreen
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Gamal A. Shazly
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Bakht Ramin Shah
- Skin Barrier Research Group, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
| | - Yousef A. Bin Jardan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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16
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Aliyu AD, Mustafa M, Abd Aziz NA, Hadi NS. A Study on Bio-Stabilisation of Sub-Standard Soil by Indigenous Soil Urease-Producing Bacteria. PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY 2023; 31:2389-2412. [DOI: 10.47836/pjst.31.5.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Sub-standard soils are of great concern worldwide due to diverse economic losses and the possibility of severe environmental hazards ranging from catastrophic landslides, building collapse, and erosion to loss of lives and properties. This study explored the potential of urease-producing bacteria, <i>Bacillus cereus</i> and <i>Bacillus paramycoides</i>, to stabilise sub-standard soil bio-stabilisation. The maximum urease activity measured by <i>B. cereus</i> and <i>B. paramycoides</i> was 665 U/mL and 620 U/mL, respectively. <i>B. cereus</i> and <i>B. paramycoides</i> precipitated 943 ± 57 mg/L and 793 ± 51 mg/L of CaCO<sub>3</sub> at an optical density (425 nm) of 1.01 and 1.09 and pH 8.83 and 8.59, respectively, after 96 hours of incubation. SEM microstructural analysis of the precipitated CaCO<sub>3</sub> revealed crystals of various sizes (2.0–23.0 µm) with different morphologies. XRD analysis confirmed that the precipitated CaCO<sub>3</sub> comprised calcite and aragonite crystals. SEM analysis of the microstructure of organic and sandy clay soils treated with <i>B. cereus</i> and <i>B. paramycoides</i> showed the formation of bio-precipitated calcium carbonate deposits on the soil particles (biocementing soil grains), with <i>B. cereus</i> precipitating more CaCO<sub>3</sub> crystals with a better biocementing effect compared to <i>B. paramycoides</i>. Overall, the experimental results attributed CaCO<sub>3</sub> formation to bacterial-associated processes, suggesting that soil ureolytic bacteria are potentially useful to stabilise sub-standard soil.
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17
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Aliyeva-Schnorr L, Schuster C, Deising HB. Natural Urease Inhibitors Reduce the Severity of Disease Symptoms, Dependent on the Lifestyle of the Pathogens. J Fungi (Basel) 2023; 9:708. [PMID: 37504697 PMCID: PMC10381680 DOI: 10.3390/jof9070708] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
The development of new anti-ureolytic compounds is of great interest due to the newly discovered role of urease inhibitors in crop protection. Purine degradation and the generation of ammonium by urease are required for the full virulence of biotrophic and hemibiotrophic fungal plant pathogens. Accordingly, chemicals displaying urease inhibitor activity may be used as a novel class of fungicides. Several urease inhibitors belonging to different chemical classes are known, and some compounds have been developed as urea fertilizer additives. We tested whether the natural urease inhibitors p-benzoquinone (p-HQ) and hydroquinone (HQ), as well as the synthetic inhibitors isopropoxy carbonyl phosphoric acid amide (iCPAA), benzyloxy carbonyl phosphoric acid amide (bCPAA), and dipropyl-hexamino-1,3 diphosphazenium chloride (DDC), prevent or delay plant infection caused by pathogens differing in lifestyles and host plants. p-BQ, HQ, and DCC not only protected maize from infection by the hemibiotroph C. graminicola, but also inhibited the infection process of biotrophs such as the wheat powdery mildew fungus Blumeria graminis f. sp. tritici and the broad bean rust fungus Uromyces viciae-fabae. Interestingly, the natural quinone-based compounds even reduced the symptom severity of the necrotrophic fungi, i.e., the grey mold pathogen B. cinerea and the Southern Leaf Spot fungus C. heterostrophus, to some extent. The urease inhibitors p-BQ, HQ, and DCC interfered with appressorial penetration and confirmed the appropriateness of urease inhibitors as novel fungicidal agents.
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Affiliation(s)
- Lala Aliyeva-Schnorr
- Chair for Phytopathology and Plant Protection, Institute for Agricultural and Nutritional Sciences, Faculty of Natural Sciences III, Martin-Luther-University Halle-Wittenberg, Betty-Heimann-Str. 3, D-06120 Halle (Saale), Germany
| | - Carola Schuster
- SKW Stickstoffwerke Piesteritz GmbH, Möllensdorfer Str. 13, D-06886 Lutherstadt Wittenberg, Germany
| | - Holger B Deising
- Chair for Phytopathology and Plant Protection, Institute for Agricultural and Nutritional Sciences, Faculty of Natural Sciences III, Martin-Luther-University Halle-Wittenberg, Betty-Heimann-Str. 3, D-06120 Halle (Saale), Germany
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18
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Bhogadia M, Edgar M, Hunwin K, Page G, Grootveld M. Detection and Quantification of Ammonia as the Ammonium Cation in Human Saliva by 1H NMR: A Promising Probe for Health Status Monitoring, with Special Reference to Cancer. Metabolites 2023; 13:792. [PMID: 37512499 PMCID: PMC10383521 DOI: 10.3390/metabo13070792] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
Ammonia (NH3) has been shown to be a key biomarker for a wide variety of diseases, such as hepatic and chronic kidney diseases (CKD), and cancers. It also has relevance to the oral health research area, and, hence, its determination in appropriate biofluids and tissues is of much importance. However, since it contains exchangeable >N-H protons, its analysis via 1H NMR spectroscopy, which is a widely employed technique in untargeted metabolomic studies, is rendered complicated. In this study, we focused on the 1H NMR analysis of this biomarker in less invasively collected human saliva samples, and we successfully identified and quantified it as ammonium cation (NH4+) in post-collection acidulated forms of this biofluid using both the standard calibration curve and standard addition method (SAM) approaches. For this purpose, n = 27 whole mouth saliva (WMS) samples were provided by healthy human participants, and all donors were required to follow a fasting/oral environment abstention period of 8 h prior to collection. Following acidification (pH 2.00), diluted WMS supernatant samples treated with 10% (v/v) D2O underwent 1H NMR analysis (600 MHz). The acquired results demonstrated that NH4+ can be reliably determined in these supernatants via integration of the central line of its characteristic 1:1:1 intensity triplet resonance (complete spectral range δ = 6.97-7.21 ppm). Experiments performed also demonstrated that any urease-catalysed NH3 generation occurring post-sampling in WMS samples did not affect the results acquired during the usual timespan of laboratory processing required prior to analysis. Further experiments demonstrated that oral mouth-rinsing episodes conducted prior to sample collection, as reported in previous studies, gave rise to major decreases in salivary NH4+ levels thereafter, which renormalised to only 50-60% of their basal control concentrations at the 180-min post-rinsing time point. Therefore, the WMS sample collection method employed significantly affected the absolute levels of this analyte. The LLOD was 60 μmol/L with 128 scans. The mean ± SD salivary NH4+ concentration of WMS supernatants was 11.4 ± 4.5 mmol/L. The potential extension of these analytical strategies to the screening of other metabolites with exchangeable 1H nuclei is discussed, as is their relevance to the monitoring of human disorders involving the excessive generation and/or uptake of cellular/tissue material, or altered homeostasis, in NH3.
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Affiliation(s)
- Mohammed Bhogadia
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Mark Edgar
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Kayleigh Hunwin
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Georgina Page
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Martin Grootveld
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK
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19
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Aniceto N, Albuquerque TS, Bonifácio VDB, Guedes RC, Martinho N. Using Machine Learning and Molecular Docking to Leverage Urease Inhibition Data for Virtual Screening. Int J Mol Sci 2023; 24:ijms24098180. [PMID: 37175889 PMCID: PMC10179503 DOI: 10.3390/ijms24098180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
Urease is a metalloenzyme that catalyzes the hydrolysis of urea, and its modulation has an important role in both the agricultural and medical industry. Even though numerous molecules have been tested against ureases of different species, their clinical translation has been limited due to chemical and metabolic stability as well as side effects. Therefore, screening new compounds against urease would be of interest in part due to rising concerns regarding antibiotic resistance. In this work, we collected and curated a diverse set of 2640 publicly available small-molecule inhibitors of jack bean urease and developed a classifier using a random forest machine learning method with high predictive performance. In addition, the physicochemical features of compounds were paired with molecular docking and protein-ligand fingerprint analysis to gather insight into the current activity landscape. We observed that the docking score could not differentiate active from inactive compounds within each chemical family, but scores were correlated with compound activity when all compounds were considered. Additionally, a decision tree model was built based on 2D and 3D Morgan fingerprints to mine patterns of the known active-class compounds. The final machine learning model showed good prediction performance against the test set (81% and 77% precision for active and inactive compounds, respectively). Finally, this model was employed, as a proof-of-concept, on an in-house library to predict new hits that were then tested against urease and found to be active. This is, to date, the largest, most diverse dataset of compounds used to develop predictive in silico models. Overall, the results highlight the usefulness of using machine learning classifiers and molecular docking to predict novel urease inhibitors.
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Affiliation(s)
- Natália Aniceto
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Tânia S Albuquerque
- iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Vasco D B Bonifácio
- iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Bioengineering Department, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Rita C Guedes
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Nuno Martinho
- iBB-Institute for Bioengineering and Biosciences, and Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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20
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Mollazadeh M, Azizian H, Fakhrioliaei A, Iraji A, Avizheh L, Valizadeh Y, Zomorodian K, Elahi F, Moazzam A, Kazemzadeh H, Amanlou M, Garmciri F, Hamidian E, Biglar M, Larijani B, Mahdavi M. Different barbiturate derivatives linked to aryl hydrazone moieties as urease inhibitors; design, synthesis, urease inhibitory evaluations, and molecular dynamic simulations. Med Chem Res 2023. [DOI: 10.1007/s00044-023-03050-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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21
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Suenaga S, Takano Y, Saito T. Unraveling Binding Mechanism and Stability of Urease Inhibitors: A QM/MM MD Study. Molecules 2023; 28:molecules28062697. [PMID: 36985670 PMCID: PMC10051795 DOI: 10.3390/molecules28062697] [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: 01/30/2023] [Revised: 03/06/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
Soil bacteria can produce urease, which catalyzes the hydrolysis of urea to ammonia (NH3) and carbamate. A variety of urease inhibitors have been proposed to reduce NH3 volatilization by interfering with the urease activity. We report a quantum mechanics/molecular mechanics molecular dynamics (QM/MM MD) study on the mechanism employed for the inhibition of urease by three representative competitive inhibitors; namely, acetohydroxamic acid (AHA), hydroxyurea (HU), and N-(n-butyl)phosphorictriamide (NBPTO). The possible connections between the structural and thermodynamical properties and the experimentally observed inhibition efficiency were evaluated and characterized. We demonstrate that the binding affinity decreases in the order NBPTO >> AHA > HU in terms of the computed activation and reaction free energies. This trend also indicates that NBPTO shows the highest inhibitory activity and the lowest IC50 value of 2.1 nM, followed by AHA (42 μM) and HU (100 μM). It was also found that the X=O moiety (X = carbon or phosphorous) plays a crucial role in the inhibitor binding process. These findings not only elucidate why the potent urease inhibitors are effective but also have implications for the design of new inhibitors.
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Affiliation(s)
- Shunya Suenaga
- Faculty of Information Sciences, Hiroshima City University, 3-4-1 Ozuka-Higashi, Asa-Minami-Ku, Hiroshima 731-3194, Japan
| | - Yu Takano
- Graduate School of Information Sciences, Hiroshima City University, 3-4-1 Ozuka-Higashi, Asa-Minami-Ku, Hiroshima 731-3194, Japan
| | - Toru Saito
- Graduate School of Information Sciences, Hiroshima City University, 3-4-1 Ozuka-Higashi, Asa-Minami-Ku, Hiroshima 731-3194, Japan
- Correspondence: ; Tel.: +81-82-830-1617
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22
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Basak A, Gavande PV, Murmu N, Ghosh S. Optimization and biochemical characterization of a thermotolerant processive cellulase, PtCel1, of Parageobacillus thermoglucosidasius NBCB1. J Basic Microbiol 2023; 63:326-339. [PMID: 36074980 DOI: 10.1002/jobm.202200394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/11/2022] [Accepted: 08/20/2022] [Indexed: 11/11/2022]
Abstract
Vermicomposting involves enrichment of microorganisms that are able to resist higher temperatures and perform simultaneous degradation of lignocellulose, and therefore, such microbial communities are a potential source of cellulolytic enzymes. This study aimed to optimize the production of a processive cellulase by Parageobacillus thermoglucosidasius NBCB1 isolated from vermicompost, under submerged fermentation of rice straw and to characterize the purified enzyme for industrial suitability. Cellulase production in basal medium (7.27 IU/mg) was enhanced to 61 IU/mg by One Factor At a Time approach, which was further improved to 78.46 IU/mg by genetic algorithm based artificial neural networking. The cellulase PtCel1 purified from bacterial culture showed a molecular weight of ≈33 kD, had activity on both crystalline (305 IU/mg) and amorphous (184 IU/mg) cellulose as substrates. It had pH and temperature optima of 5.5°C and 60°C, respectively, and retained 100% activity upon preincubation at 60°C for 1 h indicating thermostability. PtCel1 was tolerant to sodium dodecyl sulfate, glucose and mannose; and the various metal chlorides, such as sodium, magnesium, calcium and zinc, acted as inducers giving 77.54%, 45.15%, 61.10%, and 169.14% augmentation of activity, respectively. Its efficiency on cellulosic substrates and robustness against aforementioned chemical and thermal environment makes it suitable for industrial applications.
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Affiliation(s)
- Arijita Basak
- Department of Biotechnology, University of North Bengal, Raja Rammohunpur, Darjeeling, India
| | - Parmeshwar V Gavande
- Department of Biotechnology, University of North Bengal, Raja Rammohunpur, Darjeeling, India.,Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Nensina Murmu
- Department of Biotechnology, University of North Bengal, Raja Rammohunpur, Darjeeling, India
| | - Shilpi Ghosh
- Department of Biotechnology, University of North Bengal, Raja Rammohunpur, Darjeeling, India
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23
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He Z, Xu Y, Zhu Y, Feng J, Zhang D, Pan X. Long-term effects of soluble and insoluble ferric irons on anaerobic oxidation of methane in paddy soil. CHEMOSPHERE 2023; 317:137901. [PMID: 36669540 DOI: 10.1016/j.chemosphere.2023.137901] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Iron-dependent anaerobic oxidation of methane (Fe-AOM) is an important process to reduce methane emissions into the atmosphere. It is well known that iron bioavailability largely influences microbial iron reduction, but the long-term effects of different ferric irons on soil Fe-AOM remain unknown. In this work, paddy soil in the ferruginous zone was collected and inoculated with insoluble ferrihydrite and soluble EDTA-Fe(III) for 420 days. Stable isotope experiments, activity inhibition tests, and molecular biological techniques were performed to reveal the activity, microbial community, and possible mechanism of paddy soil Fe-AOM. The results showed that ferrihydrite was a better electron acceptor for long-term Fe-AOM cultivation. Although EDTA-Fe(III) is highly bioavailable and could stimulate Fe-AOM activity for a short time, it restricted the activity increase in the long term. The abundances of archaea, iron-reducing bacteria (IRB), and gene mcrA largely increased after cultivation, indicating the important roles of mcrA-carrying archaea and IRB. Remarkably, archaeal communities were similar, but bacteria were totally different with different ferric irons. The results of the microbial community and activity inhibition suggested that Fe-AOM was performed likely by the cooperation between archaea (Methanomassiliicoccaceae or pGrfC26) and IRB in the cultures.
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Affiliation(s)
- Zhanfei He
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Yiting Xu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Yinghong Zhu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Jieni Feng
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Daoyong Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, China.
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24
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Chen WF, Meng XF, Jiao YS, Tian CF, Sui XH, Jiao J, Wang ET, Ma SJ. Bacteroid Development, Transcriptome, and Symbiotic Nitrogen-Fixing Comparison of Bradyrhizobium arachidis in Nodules of Peanut (Arachis hypogaea) and Medicinal Legume Sophora flavescens. Microbiol Spectr 2023; 11:e0107922. [PMID: 36656008 PMCID: PMC9927569 DOI: 10.1128/spectrum.01079-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 12/29/2022] [Indexed: 01/20/2023] Open
Abstract
Bradyrhizobium arachidis strain CCBAU 051107 could differentiate into swollen and nonswollen bacteroids in determinate root nodules of peanut (Arachis hypogaea) and indeterminate nodules of Sophora flavescens, respectively, with different N2 fixation efficiencies. To reveal the mechanism of bacteroid differentiation and symbiosis efficiency in association with different hosts, morphologies, transcriptomes, and nitrogen fixation efficiencies of the root nodules induced by strain CCBAU 051107 on these two plants were compared. Our results indicated that the nitrogenase activity of peanut nodules was 3 times higher than that of S. flavescens nodules, demonstrating the effects of rhizobium-host interaction on symbiotic effectiveness. With transcriptome comparisons, genes involved in biological nitrogen fixation (BNF) and energy metabolism were upregulated, while those involved in DNA replication, bacterial chemotaxis, and flagellar assembly were significantly downregulated in both types of bacteroids compared with those in free-living cells. However, expression levels of genes involved in BNF, the tricarboxylic acid (TCA) cycle, the pentose phosphate pathway, hydrogenase synthesis, poly-β-hydroxybutyrate (PHB) degradation, and peptidoglycan biosynthesis were significantly greater in the swollen bacteroids of peanut than those in the nonswollen bacteroids of S. flavescens, while contrasting situations were found in expression of genes involved in urea degradation, PHB synthesis, and nitrogen assimilation. Especially higher expression of ureABEF and aspB genes in bacteroids of S. flavescens might imply that the BNF product and nitrogen transport pathway were different from those in peanut. Our study revealed the first differences in bacteroid differentiation and metabolism of these two hosts and will be helpful for us to explore higher-efficiency symbiosis between rhizobia and legumes. IMPORTANCE Rhizobial differentiation into bacteroids in leguminous nodules attracts scientists to investigate its different aspects. The development of bacteroids in the nodule of the important oil crop peanut was first investigated and compared to the status in the nodule of the extremely promiscuous medicinal legume Sophora flavescens by using just a single rhizobial strain of Bradyrhizobium arachidis, CCBAU 051107. This strain differentiates into swollen bacteroids in peanut nodules and nonswollen bacteroids in S. flavescens nodules. The N2-fixing efficiency of the peanut nodules is three times higher than that of S. flavescens. By comparing the transcriptomes of their bacteroids, we found that they have similar gene expression spectra, such as nitrogen fixation and motivity, but different spectra in terms of urease activity and peptidoglycan biosynthesis. Those altered levels of gene expression might be related to their functions and differentiation in respective nodules. Our studies provided novel insight into the rhizobial differentiation and metabolic alteration in different hosts.
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Affiliation(s)
- Wen Feng Chen
- State Key Laboratory of Agrobiotechnology, Beijing, People’s Republic of China
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, People’s Republic of China
| | - Xiang Fei Meng
- State Key Laboratory of Agrobiotechnology, Beijing, People’s Republic of China
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, People’s Republic of China
| | - Yin Shan Jiao
- State Key Laboratory of Agrobiotechnology, Beijing, People’s Republic of China
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, People’s Republic of China
| | - Chang Fu Tian
- State Key Laboratory of Agrobiotechnology, Beijing, People’s Republic of China
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, People’s Republic of China
| | - Xin Hua Sui
- State Key Laboratory of Agrobiotechnology, Beijing, People’s Republic of China
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, People’s Republic of China
| | - Jian Jiao
- State Key Laboratory of Agrobiotechnology, Beijing, People’s Republic of China
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing, People’s Republic of China
| | - En Tao Wang
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, México
| | - Sheng Jun Ma
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of China
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25
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Ata A, Salar U, Saleem F, Lateef M, Khan SA, Khan KM, Taha M, Haider SM, Ul-Haq Z. Identification of potential urease inhibitors and antioxidants based on saccharin derived analogs: Synthesis, in vitro, and in silico studies. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Saleem M, Hanif M, Rafiq M, Hassan M, Tahir T. Synthesis, Characterization, Optical Properties, Molecular Modeling and Urease Inhibition Analysis of Organic Ligands and Their Metal Complexes. J Fluoresc 2023; 33:113-124. [PMID: 36282345 DOI: 10.1007/s10895-022-03032-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/14/2022] [Accepted: 09/17/2022] [Indexed: 02/04/2023]
Abstract
Recently, screening of efficient urease inhibitors by employing organic small molecules metalloderivatives interests the scientific community due to their efficacy for treatment of urease triggered health complications. This study comprises the synthesis, urease inhibition activity, optical analysis and molecular modeling of hydrazinecarbothioamide and hydrazinecarboxamide metalloderivatives. Characterization of synthesized materials was done by UV-visible, fluorescence, NMR and FTIR spectroscopic analysis. Metalloderivatization of ligands induce increment in urease inhibition potential and effect was prominent for copper complexes with 10-fold enhancement, cobalt complex with 3.5 fold's enhancement and palladium with 2-fold increment in the inhibition efficacy toward urease when it was compared with reference urease inhibitor. Zinc and iron complexes cause declined urease inhibition activity of the bare ligand. The overall activity of hydrazinecarbothioamide slightly exceeds than that of hydrazinecarboxamide, possibly due to larger complexation ability of sulfur-based ligand in comparison to oxygenated derivatives i.e., hydrazinecarboxamide. The enzyme inhibition kinetics for the most active complexes represent the mixed type urease inhibition for 3a and competitive urease inhibition for 5a, as determined by Lineweaver-Burk plots. The docked scoring values for both the ligands were calculated to be 61.34, 64.72, 56.68, 62.94, 64.98 and 58.98. Three active hydrogen bonds were observed in docking complex upon computational analysis of most potent metallodrug 3a inside active region of targeted protein.
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Affiliation(s)
- Muhammad Saleem
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan. .,Department of Chemistry, Thal University Bhakkar, 30000, Bhakkar, Pakistan.
| | - Muhammad Hanif
- Department of Chemistry, GC University Faisalabad, Sub campus layyah-31200, Faisalabad, Pakistan
| | - Muhammad Rafiq
- Department of Physiology and Biochemistry, Cholistan University of Veterinary and Animal Sciences, 6300, Bahawalpur, Pakistan
| | - Mubashir Hassan
- Institute of Molecular biology and Biotechnology/(IMBB), The University of Lahore, 1-KM, Defence Road, Bhubtian Chowk, Lahore, Pakistan
| | - Tehreem Tahir
- Department of Biochemistry and Biotechnology, The Islamia University of Bahawalpur, 6300, Bahawalpur, Pakistan
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27
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Govindasamy P, Muthusamy SK, Bagavathiannan M, Mowrer J, Jagannadham PTK, Maity A, Halli HM, G. K. S, Vadivel R, T. K. D, Raj R, Pooniya V, Babu S, Rathore SS, L. M, Tiwari G. Nitrogen use efficiency-a key to enhance crop productivity under a changing climate. FRONTIERS IN PLANT SCIENCE 2023; 14:1121073. [PMID: 37143873 PMCID: PMC10151540 DOI: 10.3389/fpls.2023.1121073] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 03/20/2023] [Indexed: 05/06/2023]
Abstract
Nitrogen (N) is an essential element required for the growth and development of all plants. On a global scale, N is agriculture's most widely used fertilizer nutrient. Studies have shown that crops use only 50% of the applied N effectively, while the rest is lost through various pathways to the surrounding environment. Furthermore, lost N negatively impacts the farmer's return on investment and pollutes the water, soil, and air. Therefore, enhancing nitrogen use efficiency (NUE) is critical in crop improvement programs and agronomic management systems. The major processes responsible for low N use are the volatilization, surface runoff, leaching, and denitrification of N. Improving NUE through agronomic management practices and high-throughput technologies would reduce the need for intensive N application and minimize the negative impact of N on the environment. The harmonization of agronomic, genetic, and biotechnological tools will improve the efficiency of N assimilation in crops and align agricultural systems with global needs to protect environmental functions and resources. Therefore, this review summarizes the literature on nitrogen loss, factors affecting NUE, and agronomic and genetic approaches for improving NUE in various crops and proposes a pathway to bring together agronomic and environmental needs.
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Affiliation(s)
- Prabhu Govindasamy
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
- *Correspondence: Muthukumar Bagavathiannan, ; Prabhu Govindasamy,
| | - Senthilkumar K. Muthusamy
- Division of Crop Improvement, Indian Council of Agricultural Research (ICAR)-Central Tuber Crops Research Institute, Thiruvananthapuram, India
| | - Muthukumar Bagavathiannan
- Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, United States
- *Correspondence: Muthukumar Bagavathiannan, ; Prabhu Govindasamy,
| | - Jake Mowrer
- Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, United States
| | | | - Aniruddha Maity
- Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, United States
| | - Hanamant M. Halli
- School of Soil Stress Management, Indian Council of Agricultural Research (ICAR)-National Institute of Abiotic Stress Management, Pune, India
| | - Sujayananad G. K.
- Crop Protection, Indian Council of Agricultural Research (ICAR)-Indian Institute of Pulse Research, Kanpur, India
| | - Rajagopal Vadivel
- School of Soil Stress Management, Indian Council of Agricultural Research (ICAR)-National Institute of Abiotic Stress Management, Pune, India
| | - Das T. K.
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Rishi Raj
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Vijay Pooniya
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Subhash Babu
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Sanjay Singh Rathore
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Muralikrishnan L.
- Division of Agricultural Extension, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Gopal Tiwari
- Division of Agronomy, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
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28
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Freitas T, Bartelega L, Santos C, Dutra MP, Sarkis LF, Guimarães RJ, Dominghetti AW, Zito PC, Fernandes TJ, Guelfi D. Technologies for Fertilizers and Management Strategies of N-Fertilization in Coffee Cropping Systems to Reduce Ammonia Losses by Volatilization. PLANTS (BASEL, SWITZERLAND) 2022; 11:3323. [PMID: 36501362 PMCID: PMC9741429 DOI: 10.3390/plants11233323] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/13/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023]
Abstract
The aim of this study was to quantify NH3-N losses from conventional, stabilized, slow-release, and controlled-release N fertilizers in a coffee field. The N fertilizers analyzed were prilled urea, prilled urea dissolved in water, ammonium sulfate (AS), ammonium nitrate (AN), urea + Cu + B, urea + adhesive + CaCO3, and urea + NBPT (all with three split applications), as well as blended N fertilizer, urea + elastic resin, urea-formaldehyde, and urea + polyurethane (all applied only once). NH3-N losses (mean of two crop seasons) were statistically higher for urea + adhesive + CaCO3 (27.9% of applied N) in comparison with the other treatments. Loss from prilled urea (23.7%) was less than from urea + adhesive + CaCO3. Losses from urea + NBPT (14.5%) and urea + Cu + B (13.5%) were similar and lower than those from prilled urea. Urea dissolved in water (4.2%) had even lower losses than those treatments, and the lowest losses were observed for AS (0.6%) and AN (0.5%). For the single application fertilizers, higher losses occurred for urea + elastic resin (5.8%), blended N fertilizer (5.5%), and urea + polyurethane (5.2%); and urea-formaldehyde had a lower loss (0.5%). Except for urea + adhesive + CaCO3, all N-fertilizer technologies reduced NH3-N losses compared to prilled urea.
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Affiliation(s)
- Tainah Freitas
- Department of Agriculture, Federal University of Lavras, Lavras 37203-202, Brazil
| | - Lucas Bartelega
- Department of Soil Science, Federal University of Lavras, Lavras 37203-202, Brazil
| | - César Santos
- Department of Soil Science, Federal University of Lavras, Lavras 37203-202, Brazil
| | - Mateus Portes Dutra
- Department of Soil Science, Federal University of Lavras, Lavras 37203-202, Brazil
| | | | | | | | | | | | - Douglas Guelfi
- Department of Soil Science, Federal University of Lavras, Lavras 37203-202, Brazil
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Alain KY, Tamfu AN, Kucukaydin S, Ceylan O, Cokou Pascal AD, Félicien A, Koko Dominique SC, Duru ME, Dinica RM. Phenolic profiles, antioxidant, antiquorum sensing, antibiofilm and enzyme inhibitory activities of selected Acacia species collected from Benin. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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30
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McCartney SN, Fan H, Watanabe NS, Huang Y, Yip NY. Donnan dialysis for phosphate recovery from diverted urine. WATER RESEARCH 2022; 226:119302. [PMID: 36369681 DOI: 10.1016/j.watres.2022.119302] [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: 07/02/2022] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
There is a critical need to shift from existing linear phosphorous management practices to a more sustainable circular P economy. Closing the nutrient loop can reduce our reliance on phosphate mining, which has well-documented environmental impacts, while simultaneously alleviating P pollution of aquatic environments from wastewater discharges that are not completely treated. The high orthophosphate, HxPO4(3-x)-, content in source-separated urine offers propitious opportunities for P recovery. This study examines the use of Donnan dialysis (DD), an ion-exchange membrane-based process, for the recovery of orthophosphates from fresh and hydrolyzed urine matrixes. H2PO4- transport against an orthophosphate concentration gradient was demonstrated and orthophosphate recovery yields up to 93% were achieved. By adopting higher feed to receiver volume ratios, DD enriched orthophosphate in the product stream as high as ≈2.5 × the initial urine feed concentration. However, flux, selectivity, and yield of orthophosphate recovery were detrimentally impacted by the presence of SO42- and Cl- in fresh urine, and the large amount of HCO3- rendered hydrolyzed urine practically unsuitable for P recovery using DD. The detrimental effects of sulfate ions can be mitigated by utilizing a monovalent ion permselective membrane, improving selectivity for H2PO4- transport over SO42- by 3.1 × relative to DD with a conventional membrane; but the enhancement was at the expense of reduced orthophosphate flux. Critically, widely available and low-cost/waste resources with sufficiently high Cl- content, such as seawater and waste water softening regenerant rinse, can be employed to improve the economic viability of orthophosphate recovery. This study shows the promising potential of DD for P recovery and enrichment from source-separated urine.
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Affiliation(s)
- Stephanie N McCartney
- Department of Earth and Environmental Engineering, Columbia University, New York, New York 10027-6623, United States
| | - Hanqing Fan
- Department of Earth and Environmental Engineering, Columbia University, New York, New York 10027-6623, United States
| | - Nobuyo S Watanabe
- Department of Chemistry, Barnard College, New York, New York 10027-6598, United States
| | - Yuxuan Huang
- Department of Earth and Environmental Engineering, Columbia University, New York, New York 10027-6623, United States
| | - Ngai Yin Yip
- Department of Earth and Environmental Engineering, Columbia University, New York, New York 10027-6623, United States; Columbia Water Center, Columbia University, New York, New York 10027-6623, United States.
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Synthesis and Identification of New N, N-Disubstituted Thiourea, and Thiazolidinone Scaffolds Based on Quinolone Moiety as Urease Inhibitor. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27207126. [PMID: 36296723 PMCID: PMC9608620 DOI: 10.3390/molecules27207126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/15/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022]
Abstract
Synthesis of thiazolidinone based on quinolone moiety was established starting from 4-hydroxyquinol-2-ones. The strategy started with the reaction of ethyl bromoacetate with 4-hydroxyquinoline to give the corresponding ethyl oxoquinolinyl acetates, which reacted with hydrazine hydrate to afford the hydrazide derivatives. Subsequently, hydrazides reacted with isothiocyanate derivatives to give the corresponding N,N-disubstituted thioureas. Finally, on subjecting the N,N-disubstituted thioureas with dialkyl acetylenedicarboxylates, cyclization occurred, and thiazolidinone derivatives were obtained in good yields. The two series based on quinolone moiety, one containing N,N-disubstituted thioureas and the other containing thiazolidinone functionalities, were screened for their in vitro urease inhibition properties using thiourea and acetohydroxamic acid as standard inhibitors. The inhibition values of the synthesized thioureas and thiazolidinones exhibited moderate to good inhibitory effects. The structure-activity relationship revealed that N-methyl quinolonyl moiety exhibited a superior effect, since it was proved to be the most potent inhibitor in the present series achieving (IC50 = 1.83 ± 0.79 µM). The previous compound exhibited relatively much greater activity, being approximately 12-fold more potent than thiourea and acetohydroxamic acid as references. Molecular docking analysis showed a good protein-ligand interaction profile against the urease target (PDBID: 4UBP), emphasizing the electronic and geometric effect of N,N-disubstituted thiourea.
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32
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Chang Y, Park TE, Lee SW, Lee EH. Colorimetric Detection of Urease-Producing Microbes Using an Ammonia-Responsive Flexible Film Sensor. BIOSENSORS 2022; 12:886. [PMID: 36291023 PMCID: PMC9599750 DOI: 10.3390/bios12100886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/08/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Urease-producing (ureolytic) microbes have given rise to environmental and public health concerns because they are thought to contribute to emissions of ammonia and to be a virulence factor for infections. Therefore, it is highly important to have the ability to detect such microbes. In this study, a poly(dimethylsiloxane) (PDMS)-based colorimetric film sensor was employed for the detection of urease-producing microbes. The sensor was able to detect the enzyme activity of commercially available urease, as the color and absorbance spectrum of the sensor was observed to change upon being exposed to the reaction catalyzed by urease. The ratio of the absorbance of the sensor at 640 nm to that at 460 nm (A640/A460) was linearly proportional to the amount of urease present. The performance of the sensor was validated by the results of a sensitivity and selectivity analysis towards thirteen different bacterial strains. Based on the development of blue color of the sensor, the tested bacteria were classified as strongly positive, moderately positive, weakly positive, or negative urease producers. The response of the sensor to ureolytic bacteria was verified using the urease inhibitor phenyl phosphorodiamidate (PPDA). Additionally, the sensor achieved the selective detection of ureolytic bacteria even in the presence of non-ureolytic bacteria. In addition, a used sensor could be reverted to its original state by being subjected to simple aeration, and in this way the same sensor could be used at least five times for the detection of bacterial urease activity.
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Affiliation(s)
- Yunsoo Chang
- Department of Microbiology, Pusan National University, Busan 46241, Korea
| | - Tae-Eon Park
- Center for Spintronics, Korea Institute of Science and Technology, Seoul 02792, Korea
| | - Seung-Woo Lee
- Department of Fine Chemistry, Seoul National University of Science and Technology, Seoul 01811, Korea
- Center for Functional Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Korea
| | - Eun-Hee Lee
- Department of Microbiology, Pusan National University, Busan 46241, Korea
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33
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Design and synthesis of new N-thioacylated ciprofloxacin derivatives as urease inhibitors with potential antibacterial activity. Sci Rep 2022; 12:13827. [PMID: 35970866 PMCID: PMC9378659 DOI: 10.1038/s41598-022-17993-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 08/03/2022] [Indexed: 01/06/2023] Open
Abstract
A new series of N-thioacylated ciprofloxacin 3a-n were designed and synthesized based on Willgerodt-Kindler reaction. The results of in vitro urease inhibitory assay indicated that almost all the synthesized compounds 3a-n (IC50 = 2.05 ± 0.03-32.49 ± 0.32 μM) were more potent than standard inhibitors, hydroxyurea (IC50 = 100 ± 2.5 μM) and thiourea (IC50 = 23 ± 0.84 μM). The study of antibacterial activity against Gram-positive species (S. aureus and S. epidermidis) revealed that the majority of compounds were more active than ciprofloxacin as the standard drug, and 3h derivative bearing 3-fluoro group had the same effect as ciprofloxacin against Gram-negative bacteria (P. aeruginosa and E. coli). Based on molecular dynamic simulations, compound 3n exhibited pronounced interactions with the critical residues of the urease active site and mobile flap pocket so that the quinolone ring coordinated toward the metal bi-nickel center and the essential residues at the flap site like His593, His594, and Arg609. These interactions caused blocking the active site and stabilized the movement of the mobile flap at the entrance of the active site channel, which significantly reduced the catalytic activity of urease. Noteworthy, 3n also exhibited IC50 values of 5.59 ± 2.38 and 5.72 ± 1.312 µg/ml to inhibit urease enzyme against C. neoformans and P. vulgaris in the ureolytic assay.
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34
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Green O, Finkelstein P, Rivero-Crespo MA, Lutz MDR, Bogdos MK, Burger M, Leroux JC, Morandi B. Activity-Based Approach for Selective Molecular CO 2 Sensing. J Am Chem Soc 2022; 144:8717-8724. [PMID: 35503368 DOI: 10.1021/jacs.2c02361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Carbon dioxide (CO2) impacts every aspect of life, and numerous sensing technologies have been established to detect and monitor this ubiquitous molecule. However, its selective sensing at the molecular level remains an unmet challenge, despite the tremendous potential of such an approach for understanding this molecule's role in complex environments. In this work, we introduce a unique class of selective fluorescent carbon dioxide molecular sensors (CarboSen) that addresses these existing challenges through an activity-based approach. Besides the design, synthesis, and evaluation of these small molecules as CO2 sensors, we demonstrate their utility by tailoring their reactivity and optical properties, allowing their use in a broad spectrum of multidisciplinary applications, including atmospheric sensing, chemical reaction monitoring, enzymology, and live-cell imaging. Collectively, these results showcase the potential of CarboSen sensors as broadly applicable tools to monitor and visualize carbon dioxide across multiple disciplines.
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Affiliation(s)
- Ori Green
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Patrick Finkelstein
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Miguel A Rivero-Crespo
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Marius D R Lutz
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Michael K Bogdos
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Michael Burger
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Jean-Christophe Leroux
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
| | - Bill Morandi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland
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Loharch S, Berlicki Ł. Rational Development of Bacterial Ureases Inhibitors. CHEM REC 2022; 22:e202200026. [PMID: 35502852 DOI: 10.1002/tcr.202200026] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/28/2022] [Indexed: 12/23/2022]
Abstract
Urease, an enzyme that catalyzes the hydrolysis of urea, is a virulence factor of various pathogenic bacteria. In particular, Helicobacter pylori, that colonizes the digestive tract and Proteus spp., that can infect the urinary tract, are related to urease activity. Therefore, urease inhibitors are considered as potential therapeutics against these infections. This review describes current knowledge of the structures, activity, and biological importance of bacterial ureases. Moreover, the structure-based design of several classes of bacterial urease inhibitors is presented and discussed. Phosphinic and phosphonic acids were applied as transition-state analogues, while Michael acceptors and ebselen derivatives were applied as covalent binders of cysteine residue. This review incorporates bacterial urease inhibitors from literature published between 2008 and 2021.
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Affiliation(s)
- Saurabh Loharch
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
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36
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Šovljanski O, Pezo L, Grahovac J, Tomić A, Ranitović A, Cvetković D, Markov S. Best-performing Bacillus strains for microbiologically induced CaCO3 precipitation: Screening of relative influence of operational and environmental factors. J Biotechnol 2022; 350:31-41. [DOI: 10.1016/j.jbiotec.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 03/14/2022] [Accepted: 04/07/2022] [Indexed: 12/15/2022]
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37
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Martinelli G, Angarano M, Piazza S, Fumagalli M, Magnavacca A, Pozzoli C, Khalilpour S, Dell’Agli M, Sangiovanni E. The Nutraceutical Properties of Sumac ( Rhus coriaria L.) against Gastritis: Antibacterial and Anti-Inflammatory Activities in Gastric Epithelial Cells Infected with H. pylori. Nutrients 2022; 14:nu14091757. [PMID: 35565724 PMCID: PMC9104352 DOI: 10.3390/nu14091757] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 02/05/2023] Open
Abstract
Sumac (Rhus coriaria L.) is a spice and medicinal herb traditionally used in the Mediterranean region and the Middle East. Since we previously demonstrated Sumac biological activity in a model of tumor necrosis factor alpha (TNF-α)-induced skin inflammation, the present work is aimed at further demonstrating a potential role in inflammatory disorders, focusing on gastritis. For this purpose, different polar extracts (water-W, ethanol-water-EW, ethanol-E, ethanol macerated-Em, acetone-Ac, ethylacetate-EtA) were investigated in gastric epithelial cells (GES-1) challenged by TNF-α or H. pylori infection. The ethanolic extracts (E, EW, Em) showed the major phenolic contents, correlating with lower half maximal inhibitory concentrations (IC50s) on the release of interleukin-8 (IL-8, <15 μg/mL) and interleukin-6 (IL-6, <20 μg/mL) induced by TNF-α. Similarly, they inhibited IL-8 release (IC50s < 70 μg/mL) during Helicobacter pylori (H. pylori) infection and exhibited a direct antibacterial activity at comparable concentrations (minimum inhibitory concentration (MIC) = 100 μg/mL). The phenolic content and the bioactivity of EW were maintained after simulated gastric digestion and were associated with nuclear factor kappa B (NF-κB) impairment, considered the main putative anti-inflammatory mechanism. On the contrary, an anti-urease activity was excluded. To the best of our knowledge, this is the first demonstration of the potential role of Sumac as a nutraceutical useful in H. pylori-related gastritis.
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Affiliation(s)
- Giulia Martinelli
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
| | - Marco Angarano
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
| | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
- Correspondence:
| | - Marco Fumagalli
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
| | - Andrea Magnavacca
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
| | - Carola Pozzoli
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
| | - Saba Khalilpour
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, MA 02115, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA 02115, USA
| | - Mario Dell’Agli
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
| | - Enrico Sangiovanni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20133 Milan, Italy; (G.M.); (M.A.); (M.F.); (A.M.); (C.P.); (S.K.); (M.D.); (E.S.)
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38
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Saeedian Moghadam E, Mohammed Al-Sadi A, Ghafarzadegan R, Talebi M, Amanlou M, Amini M, Abdel-Jalil R. Benzimidazole derivatives act as dual urease inhibitor and anti-helicobacter pylori agent; synthesis, bioactivity, and molecular docking study. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2061357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Abdullah Mohammed Al-Sadi
- Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Reza Ghafarzadegan
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran
| | - Meysam Talebi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Massoud Amanlou
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS, Tehran University of Medical Sciences, Tehran, Iran)
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS, Tehran University of Medical Sciences, Tehran, Iran)
| | - Raid Abdel-Jalil
- Department of Chemistry, College of Science, Sultan Qaboos University, Muscat, Sultanate of Oman
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39
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Blake LI, Cann MJ. Carbon Dioxide and the Carbamate Post-Translational Modification. Front Mol Biosci 2022; 9:825706. [PMID: 35300111 PMCID: PMC8920986 DOI: 10.3389/fmolb.2022.825706] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/03/2022] [Indexed: 01/10/2023] Open
Abstract
Carbon dioxide is essential for life. It is at the beginning of every life process as a substrate of photosynthesis. It is at the end of every life process as the product of post-mortem decay. Therefore, it is not surprising that this gas regulates such diverse processes as cellular chemical reactions, transport, maintenance of the cellular environment, and behaviour. Carbon dioxide is a strategically important research target relevant to crop responses to environmental change, insect vector-borne disease and public health. However, we know little of carbon dioxide’s direct interactions with the cell. The carbamate post-translational modification, mediated by the nucleophilic attack by carbon dioxide on N-terminal α-amino groups or the lysine ɛ-amino groups, is one mechanism by which carbon dioxide might alter protein function to form part of a sensing and signalling mechanism. We detail known protein carbamates, including the history of their discovery. Further, we describe recent studies on new techniques to isolate this problematic post-translational modification.
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40
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He Y, Zhang X, Li M, Zheng N, Zhao S, Wang J. Coptisine: A natural plant inhibitor of ruminal bacterial urease screened by molecular docking. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:151946. [PMID: 34843773 DOI: 10.1016/j.scitotenv.2021.151946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/20/2021] [Accepted: 11/20/2021] [Indexed: 06/13/2023]
Abstract
Inhibition of ruminal bacterial urease activity could slow down the decomposition of urea to ammonia, which would lead to a decrease in urea synthesis in the liver and urea-N emission in the urine. In order to find a rumen bacterial urease specific inhibitor that is environmentally friendly, we used the homology model of rumen bacterial urease as the target to screen natural compounds from plants by molecular docking. The screening results showed that coptisine had the most potential to inhibit the activity of rumen bacterial urease with an IC50 of 2.45 μM, which was superior to the traditional inhibitor acetohydroxamic acid. The enzyme kinetics results indicated coptisine was mixed type inhibitor of rumen bacterial urease with a Ki value of 0.68 μM. Coptisine significantly decreased the release of NH3 and decomposition of urea and improved microbial fermentation in a rumen fermentation system in vitro. Thiol-containing compounds or boric acid significantly decreased the inhibitory capacity of coptisine toward rumen bacterial urease, which indicated that coptisine could interact with both the urease active center Ni and amino acid residues possessing sulfhydryl groups in the flap area. The molecular docking results showed that coptisine acted as the metal acceptor for one nickel ion in the active site, and formed hydrogen bonds with the amino acid residues His320 and His362, which were located in the active site and flap region, respectively. These findings emphasized the potential role of coptisine in reducing nitrogen emissions that originate from ruminants by regulating rumen bacterial urease activity.
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Affiliation(s)
- Yue He
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaoyin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ming Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Nan Zheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shengguo Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Jiaqi Wang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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41
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Ayipo YO, Osunniran WA, Babamale HF, Ayinde MO, Mordi MN. Metalloenzyme mimicry and modulation strategies to conquer antimicrobial resistance: Metal-ligand coordination perspectives. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214317] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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42
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Li L, Song X, Ouyang M, El-kott AF, Bani-Fwaz MZ, Yu Z. Anti-HMG-CoA Reductase, Anti-diabetic, Anti-urease, Anti-tyrosinase and Anti-leukemia Cancer Potentials of Panicolin as a Natural Compound:<i>In vitro</i> and <i>in silico</i> Study. J Oleo Sci 2022; 71:1469-1480. [DOI: 10.5650/jos.ess22156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ling Li
- Department of Hematology, Inner Mongolia People’s Hospital
| | - Xiyue Song
- Department of Clinical Laboratory, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science
| | - Meng Ouyang
- Department of Pharmacy, The First People’s Hospital of JiangXia District
| | | | | | - Zebing Yu
- Department of Pharmacy, Nanning Social Welfare Hospital
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43
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Zahra U, Zaib S, Saeed A, Rehman MU, Shabir G, Alsaab HO, Khan I. New acetylphenol-based acyl thioureas broaden the scope of drug candidates for urease inhibition: synthesis, in vitro screening and in silico analysis. Int J Biol Macromol 2021; 198:157-167. [PMID: 34953808 DOI: 10.1016/j.ijbiomac.2021.12.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/04/2021] [Accepted: 12/09/2021] [Indexed: 01/06/2023]
Abstract
Helicobacter pylori urease remains a validated drug target for the eradication of pervasive chronic stomach infection that leads to severe human health diseases such as gastritis and stomach cancer. The increased failure of current treatment protocols because of resistance to broadband antibiotics, severe side effects and low compliance underscore the need for a targeted eradication therapy. Therefore, in the present research, we have developed a new series of acetylphenol-based acyl thioureas that can potentially provide a new template for drug candidates to inhibit urease enzyme. Newly synthesized compounds 7a-j were evaluated for urease inhibitory strength using thiourea as a positive control. In vitro inhibitory results revealed that all the tested compounds were significantly potent than the standard drug. The most active lead 7f competitively inhibited the enzyme and displayed an IC50 value of 0.054 ± 0.002 μM, a ~413-fold strong inhibitory potential than thiourea (IC50 = 22.3 ± 0.031 μM). Various insightful structure-activity relationships were developed showing the key structural requirements for potent inhibitory effects. Molecular docking analysis of 7f inside the active pocket of urease suggested several important interactions with amino acid residues such as ILE411, MET637, ARG439, GLN635, ALA636 and ALA440. Finally, pharmacokinetic properties suggested that the tested derivatives are safe to develop as low-molecular-weight drugs to treat ureolytic bacterial infections.
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Affiliation(s)
- Urage Zahra
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore 54590, Pakistan.
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Mujeeb Ur Rehman
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore 54590, Pakistan
| | - Ghulam Shabir
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Hashem O Alsaab
- Department of Pharmaceutics and Pharmaceutical Technology, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Imtiaz Khan
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.
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Zaib S, Tayyab Younas M, Zaraei SO, Khan I, Anbar HS, El-Gamal MI. Discovery of urease inhibitory effect of sulfamate derivatives: Biological and computational studies. Bioorg Chem 2021; 119:105545. [PMID: 34915286 DOI: 10.1016/j.bioorg.2021.105545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/13/2021] [Accepted: 12/04/2021] [Indexed: 11/26/2022]
Abstract
The discovery of life-changing medicines continues to be the driving force for the rapid exploration and expansion of chemical space, enabling access to innovative small molecules of medicinal importance. These small molecules remain the backbone for modern drug discovery. In this context, the treatment of ureolytic bacterial infections inspires the identification of potent and effective inhibitors of urease, a promising and highly needed target for H. pylori eradication. The present study explores the evaluation of sulfamate derivatives for the inhibition of urease enzyme. The tested compounds showed remarkable inhibitory effect and high level of potency. Compound 1q emerged as the lead inhibitor with an IC50 value of 0.062 ± 0.001 µM, ∼360-fold more potent than thiourea (IC50 = 22.31 ± 0.031 µM). The assessment of various contributing factors towards the inhibition profile allowed for the establishment of diverse structure-activity relationships. Kinetics studies revealed the competitive mode of inhibition of compound 1q while molecular modeling analysis identified various crucial binding interactions with ARG609, ARG439, HIS519, HIS492, HIS593, ALA440, and ALA636 in the active pocket of the enzyme. Finally, the calculated pharmacokinetic properties suggest a promising profile of our potent sulfamate-based urease inhibitors.
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Affiliation(s)
- Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore 54590, Pakistan.
| | - Muhammad Tayyab Younas
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore 54590, Pakistan
| | - Seyed-Omar Zaraei
- Center for Biomaterials, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul 130-650, Republic of Korea; Department of Biomolecular Science, Korea University of Science and Technology, 113 Gwahangno, Yuseong-gu, Daejeon 305-333, Republic of Korea
| | - Imtiaz Khan
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Hanan S Anbar
- Department of Clinical Pharmacy and Pharmacotherapeutics, Dubai Pharmacy College for Girls, Dubai 19099, United Arab Emirates
| | - Mohammed I El-Gamal
- Department of Medicinal Chemistry, College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates; Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
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Shah ZA, Hussain S, Khan S, Ali N, Burki S, Shah SUA, Ahmad A, -Ur-Rehman F, Qureshi MN, Shah SMM, Shaheen F. Inhibition of jack bean urease by amphiphilic peptides. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02757-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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46
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Designing of Nanomaterials-Based Enzymatic Biosensors: Synthesis, Properties, and Applications. ELECTROCHEM 2021. [DOI: 10.3390/electrochem2010012] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Among the many biological entities employed in the development of biosensors, enzymes have attracted the most attention. Nanotechnology has been fostering excellent prospects in the development of enzymatic biosensors, since enzyme immobilization onto conductive nanostructures can improve characteristics that are crucial in biosensor transduction, such as surface-to-volume ratio, signal response, selectivity, sensitivity, conductivity, and biocatalytic activity, among others. These and other advantages of nanomaterial-based enzymatic biosensors are discussed in this work via the compilation of several reports on their applications in different industrial segments. To provide detailed insights into the state of the art of this technology, all the relevant concepts around the topic are discussed, including the properties of enzymes, the mechanisms involved in their immobilization, and the application of different enzyme-derived biosensors and nanomaterials. Finally, there is a discussion around the pressing challenges in this technology, which will be useful for guiding the development of future research in the area.
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Green Synthesis, Characterization, Enzyme Inhibition, Antimicrobial Potential, and Cytotoxic Activity of Plant Mediated Silver Nanoparticle Using Ricinus communis Leaf and Root Extracts. Biomolecules 2021; 11:biom11020206. [PMID: 33540690 PMCID: PMC7913007 DOI: 10.3390/biom11020206] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 01/19/2023] Open
Abstract
The need of non-toxic synthesis protocols for nanoparticles arises developing interest in biogenic approaches. The present project was focused on cost effective, environment congenial synthesis of Ag nanoparticles and their biological applications. Leaf and root extracts of Ricinus communis were used as a reducing and stabilizing agent in synthesis process. A Proposed mechanism in published literature suggested that Indole-3-acetic acid, l-valine, triethyl citrate, and quercetin-3-0-p-d-glucopyranoside phytoconstituents of Ricinus communis act as reducing and capping agents. The synthesized Ag NPs were characterized with a help X-ray diffractometer, Transmission electron microscopy, UV-Vis spectrophotometry and Fourier Transform Infrared Spectroscopy (FTIR). The XRD results inveterate the synthesis of pure nano size crystalline silver particles. The FTIR data revealed the possible functional groups of biomolecules involved in bio reduction and capping for efficient stabilization of silver nanoparticles. TEM analysis confirmed the almost spherical morphology of synthesized particles with mean size 29 and 38 nm for R-Ag-NPs (root) and L-Ag-NPs (leaf), respectively. The stability of synthesized nanoparticles was examined against heat and pH. It was observed that synthesized nanoparticles were stable up to 100 °C temperature and also showed stability in neutral, basic and slightly acidic medium (pH 05–06) for several months while below pH 5 were unstable. The synthesized silver nanoparticles had promising inhibition efficiency in multiple applications, including as bactericidal/fungicidal agents and Urease/Xanthine oxidase enzymes inhibitors. The cytotoxicity of synthesized nanoparticles shows that the concentration under 20 μg/mL were biologically compatible.
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Arshad M, Ahmed K, Iqbal Z, Rashid U, Arshad MN, Asiri AM, Mahmood T. Synthesis, structural properties, enzyme inhibition and molecular docking studies of (Z)-N'-(1-allyl-2-oxoindolin-3-ylidene) methanesulfono-hydrazide and (Z)-N'-(1-allyl-2-oxoindolin-3-ylidene)-3-nitrobenzenesulfono-hydrazide. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Antibiofilm and Enzyme Inhibitory Potentials of Two Annonaceous Food Spices, African Pepper ( Xylopia aethiopica) and African Nutmeg ( Monodora myristica). Foods 2020; 9:foods9121768. [PMID: 33260317 PMCID: PMC7760624 DOI: 10.3390/foods9121768] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 11/17/2022] Open
Abstract
Food pathogens represent an important health threat, and it is relevant to study the effect of foodstuffs such as spices which can inhibit bacterial growth. This study reports the antimicrobial, antibiofilm, and enzyme (Acetylcholinesterase, Butyrylcholinesterase, urease, tyrosinase) inhibitory activities of two medicinal food spices belonging to the Annonaceae family, Monodora myristica and Xylopia aethiopica. GC-MS (gas chromatography mass spectrometry) analysis of silylated samples of Methanol-Dicloromethane (50:50) extracts of both plants led to the identification of nine compounds in M. myristica and seven compounds in X. aethiopica. M. myristica and X. aethiopica had the same minimum inhibitory concentration (MIC) values of 0.625 mg/mL and 2.5 mg/mL on C. albicans and E. coli, respectively. However, M. myristica had better activity than X. aethiopica on Staphylococcus aureus, while Pseudomonas aeruginosa was more susceptible to X. aethiopica than M. myristica. The lowest MIC value was 0.1325 mg/mL, exhibited by M. myristica on S. aureus. Both extracts showed good antibiofilm activity. On S. aureus, at the same concentration, M. myristica had better antibiofilm activity than X. aethiopica. On E. coli and Candida albicans, X. aethiopica had better antibiofilm activity than M. myristica at the same concentration. X. aethiopica showed better violacein inhibition in Chromobacterium violaceum CV12472, as its percentage inhibition of violacein varied from 80.5% ± 3.0% at MIC to 5.6 ± 0.2 at MIC/8, as compared to M. myristica with 75.1% ± 2.5% at MIC and 15.5% ± 1.1% at MIC/8. The anti-motility activity by swimming and swarming inhibition on P. aeruginosa PA01 was low at test concentrations and in both models, M. myristica showed higher motility inhibition than X. aethiopica. Although in enzyme inhibitory assays all extracts had low inhibitions compared to standards tested at the same concentrations, the results show that these plants can be used to manage food-borne infections.
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Dalby FR, Svane S, Sigurdarson JJ, Sørensen MK, Hansen MJ, Karring H, Feilberg A. Synergistic Tannic Acid-Fluoride Inhibition of Ammonia Emissions and Simultaneous Reduction of Methane and Odor Emissions from Livestock Waste. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:7639-7650. [PMID: 32407626 DOI: 10.1021/acs.est.0c01231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gaseous emissions from livestock production are complex mixtures including ammonia, methane, volatile organic compounds (VOC), and H2S. These contribute to eutrophication, reduced air quality, global warming, and odor nuisance. It is imperative that these gases are mitigated in an environmentally sustainable manner. We present the discovery of a microbial inhibitor combo consisting of tannic acid and sodium fluoride (TA-NaF), which exhibits clear synergistic inhibition of ammonia production in pure bacteria culture and in pig manure while simultaneously inhibiting methane and odorant (H2S and VOC) emissions. In laboratory headspace experiments on pig manure, we used proton-transfer-reaction mass spectrometry and cavity ring-down spectroscopy to measure the effect of TA-NaF on gaseous emissions. Ammonia emission was reduced by more than 95%, methane by up to ∼99%, and odor activity value by more than 50%. Microbial community analysis and gas emission data suggest that TA-NaF acts as an efficient generic microbial inhibitor, and we hypothesize that the synergistic inhibitory effect on ammonia production is related to tannic acid causing cell membrane leakage allowing fluoride ions easy access to urease.
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Affiliation(s)
- Frederik R Dalby
- Department of Engineering, Air Quality Engineering, Aarhus University, Finlandsgade 10, 8200 Aarhus N, Denmark
| | - Simon Svane
- Department of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Jens Jakob Sigurdarson
- Department of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Morten K Sørensen
- Department of Engineering, Air Quality Engineering, Aarhus University, Finlandsgade 10, 8200 Aarhus N, Denmark
| | - Michael J Hansen
- Department of Engineering, Air Quality Engineering, Aarhus University, Finlandsgade 10, 8200 Aarhus N, Denmark
| | - Henrik Karring
- Department of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Anders Feilberg
- Department of Engineering, Air Quality Engineering, Aarhus University, Finlandsgade 10, 8200 Aarhus N, Denmark
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