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Škulj S, Kožić M, Barišić A, Vega A, Biarnés X, Piantanida I, Barisic I, Bertoša B. Comparison of two peroxidases with high potential for biotechnology applications - HRP vs. APEX2. Comput Struct Biotechnol J 2024; 23:742-751. [PMID: 38298178 PMCID: PMC10828542 DOI: 10.1016/j.csbj.2024.01.001] [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: 10/01/2023] [Revised: 01/01/2024] [Accepted: 01/01/2024] [Indexed: 02/02/2024] Open
Abstract
Peroxidases are essential elements in many biotechnological applications. An especially interesting concept involves split enzymes, where the enzyme is separated into two smaller and inactive proteins that can dimerize into a fully active enzyme. Such split forms were developed for the horseradish peroxidase (HRP) and ascorbate peroxidase (APX) already. Both peroxidases have a high potential for biotechnology applications. In the present study, we performed biophysical comparisons of these two peroxidases and their split analogues. The active site availability is similar for all four structures. The split enzymes are comparable in stability with their native analogues, meaning that they can be used for further biotechnology applications. Also, the tertiary structures of the two peroxidases are similar. However, differences that might help in choosing one system over another for biotechnology applications were noticed. The main difference between the two systems is glycosylation which is not present in the case of APX/sAPEX2, while it has a high impact on the HRP/sHRP stability. Further differences are calcium ions and cysteine bridges that are present only in the case of HRP/sHRP. Finally, computational results identified sAPEX2 as the systems with the smallest structural variations during molecular dynamics simulations showing its dominant stability comparing to other simulated proteins. Taken all together, the sAPEX2 system has a high potential for biotechnological applications due to the lack of glycans and cysteines, as well as due to high stability.
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Affiliation(s)
- Sanja Škulj
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb HR-10000, Croatia
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Matej Kožić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb HR-10000, Croatia
| | - Antun Barišić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb HR-10000, Croatia
| | - Aitor Vega
- Laboratory of Biochemistry, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - Xevi Biarnés
- Laboratory of Biochemistry, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - Ivo Piantanida
- Division of Organic Chemistry & Biochemistry, Ruđer Bošković Institute, Bijenička Cesta 54, 10 000 Zagreb, Croatia
| | - Ivan Barisic
- Molecular Diagnostics, Center for Health and Bioresources, AIT Austrian Institute of Technology GmbH, Giefinggasse 4, Vienna 1210, Austria
- Eko Refugium, Crno Vrelo 2, Slunj 47240, Croatia
| | - Branimir Bertoša
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb HR-10000, Croatia
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2
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Breausche F, Somerlot A, Walder J, Osei K, Okyem S, Driskell JD. Immobilization of Thiol-Modified Horseradish Peroxidase on Gold Nanoparticles Enhances Enzyme Stability and Prevents Proteolytic Digestion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13957-13967. [PMID: 38919992 PMCID: PMC11238584 DOI: 10.1021/acs.langmuir.4c01180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/20/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024]
Abstract
The specificity and efficiency of enzyme-mediated reactions have the potential to positively impact many biotechnologies; however, many enzymes are easily degraded. Immobilization on a solid support has recently been explored to improve enzyme stability. This study aims to gain insights and facilitate enzyme adsorption onto gold nanoparticles (AuNPs) to form a stable bioconjugate through the installation of thiol functional groups that alter the protein chemistry. In specific, the model enzyme, horseradish peroxidase (HRP), is thiolated via Traut's reagent to increase the robustness and enzymatic activity of the bioconjugate. This study compares HRP and its thiolated analog (THRP) to deduce the impact of thiolation and AuNP-immobilization on the enzyme activity and stability. HRP, THRP, and their corresponding bioconjugates, HRP-AuNP and THRP-AuNP, were analyzed via UV-vis spectrophotometry, circular dichroism, zeta potential, and enzyme-substrate kinetics assays. Our data show a 5-fold greater adsorption for THRP on the AuNP, in comparison to HRP, that translated to a 5-fold increase in the THRP-AuNP bioconjugate activity. The thiolated and immobilized HRP exhibited a substantial improvement in stability at elevated temperatures (50 °C) and storage times (1 month) relative to the native enzyme in solution. Moreover, HRP, THRP, and their bioconjugates were incubated with trypsin to assess the susceptibility to proteolytic digestion. Our results demonstrate that THRP-AuNP bioconjugates maintain full enzymatic activity after 18 h of incubation with trypsin, whereas free HRP, free THRP, and HRP-AuNP conjugates are rendered inactive by trypsin treatment. These results highlight the potential for protein modification and immobilization to substantially extend enzyme shelf life, resist protease digestion, and enhance biological function to realize enzyme-enabled biotechnologies.
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Affiliation(s)
- Faith
E. Breausche
- Department
of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Annelise Somerlot
- Department
of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Jason Walder
- Department
of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Kwame Osei
- Department
of Chemistry, Illinois State University, Normal, Illinois 61790, United States
| | - Samuel Okyem
- Department
of Chemistry, University of Illinois at
Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jeremy D. Driskell
- Department
of Chemistry, Illinois State University, Normal, Illinois 61790, United States
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3
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Sil BK, Jamiruddin MR, Haq MA, Aekwattanaphol N, K PA, Salendra L, Paliwal H, Paul PK, Buatong W, Srichana T. Nanolevel of detection of ascorbic acid using horse-radish peroxidase inhibition assay. Heliyon 2024; 10:e30715. [PMID: 38774337 PMCID: PMC11107213 DOI: 10.1016/j.heliyon.2024.e30715] [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: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/24/2024] Open
Abstract
Ascorbic acid plays a significant role in regulation of various bodily functions with high concentrations in immune cells and being involved in connective tissue maintenance. Commonly it is detected through various colorimetric methods. In this study, we propose a one-step simple method based on the inhibitory activity of ascorbic acid on horseradish peroxidase and hydrogen peroxide. The detection is observed by colorimetric changes to TMB (3,3',5,5' tetramethylbenzidine). The enzyme inhibition unit was optimized with a high level of linearity (r2 = 0.9999) and the level of detection and level of quantification were found to be 1.35 nM and 4.08 nM, respectively with higher sensitive compared to the HPLC method (11 μM). Both intra and inter-assays showed high correlations at different AA concentrations. (r2 > 0.9999). Similar results were also observed for vitamin C tablets, ascorbate salts, fruits, and market products (r2 = 0.999). There was negligible effect of interference by citric acid, lactic acid, tartaric acids, and glucose with high recoveries (>98%) at 1 mg/mL to 0.0078 mg/mL concentration ranges. The recovery error (RE%) was found to be less than 10%. Our detection method is distinguished by its simplicity, nano-level of detection, reproducibility, and potential application and adaptability as a point-of-use test.
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Affiliation(s)
- Bijon Kumar Sil
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Mohd Raeed Jamiruddin
- School of Pharmacy, BRAC University, KHA 224 Bir Uttam Rafiqul Islam Avenue, Progati Sarani, Merul Badda, Dhaka, 1212, Bangladesh
| | - Md Ahsanul Haq
- Immunobiology, Nutrition and Toxicology Lab, Nutrition Research Division, icddr,b, 68 Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Nattanit Aekwattanaphol
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Prem Ananth K
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Limbadri Salendra
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Himanshu Paliwal
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Pijush Kumar Paul
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Wilaiporn Buatong
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Teerapol Srichana
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
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4
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Xue Y, Li Q, Wang Y, Shen H, Yu S. A magnetic nanozyme platform for bacterial colorimetric detection and chemodynamic/photothermal synergistic antibacterial therapy. Mikrochim Acta 2024; 191:214. [PMID: 38512502 DOI: 10.1007/s00604-024-06270-y] [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: 01/03/2024] [Accepted: 02/19/2024] [Indexed: 03/23/2024]
Abstract
Rapid, convenient, and sensitive detection of bacteria and development of novel antibacterial materials are conducive to accurate treatment of bacterial infection and reducing the generation of drug-resistant bacteria caused by overuse of antibiotics. A dual-function magnetic nanozyme, Fc-MBL@rGO@Fe3O4, has been constructed with broad-spectrum bacterial affinity and good peroxidase-like activity. Detection signal amplification was realized in the presence of 3,3',5,5'-tetramethylbenzidine (TMB) with a detection limit of 26 CFU/mL. In addition, the excellent photothermal properties of Fc-MBL@rGO@Fe3O4 could realize synergistic chemodynamic/photothermal antibacterial therapy. Furthermore, the good bacterial affinity of Fc-MBL@rGO@Fe3O4 enhances the accurate and rapid attack of hydroxyl radical (·OH) on the bacterial membrane and achieves efficient sterilization (100%) at low concentration (40 µg/mL) and mild temperature (47℃). Notably, Fc-MBL@rGO@Fe3O4 has a broad spectrum of antibacterial activity against Gram-negative, Gram-positive, and drug-resistant bacteria. The magnetic nanoplatform integrating detection-sterilization not only meets the need for highly sensitive and accurate detection in different scenarios, but can realize low power density NIR-II light-responsive chemodynamic/photothermal antibacterial therapy, which has broad application prospects.
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Affiliation(s)
- Yuyan Xue
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Qiaoyu Li
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yanlin Wang
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Hao Shen
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Shaoning Yu
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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5
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Guo J, Guo S, Lu S, Gong J, Wang L, Ding L, Chen Q, Liu W. The development of proximity labeling technology and its applications in mammals, plants, and microorganisms. Cell Commun Signal 2023; 21:269. [PMID: 37777761 PMCID: PMC10544124 DOI: 10.1186/s12964-023-01310-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/07/2023] [Indexed: 10/02/2023] Open
Abstract
Protein‒protein, protein‒RNA, and protein‒DNA interaction networks form the basis of cellular regulation and signal transduction, making it crucial to explore these interaction networks to understand complex biological processes. Traditional methods such as affinity purification and yeast two-hybrid assays have been shown to have limitations, as they can only isolate high-affinity molecular interactions under nonphysiological conditions or in vitro. Moreover, these methods have shortcomings for organelle isolation and protein subcellular localization. To address these issues, proximity labeling techniques have been developed. This technology not only overcomes the limitations of traditional methods but also offers unique advantages in studying protein spatial characteristics and molecular interactions within living cells. Currently, this technique not only is indispensable in research on mammalian nucleoprotein interactions but also provides a reliable approach for studying nonmammalian cells, such as plants, parasites and viruses. Given these advantages, this article provides a detailed introduction to the principles of proximity labeling techniques and the development of labeling enzymes. The focus is on summarizing the recent applications of TurboID and miniTurbo in mammals, plants, and microorganisms. Video Abstract.
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Affiliation(s)
- Jieyu Guo
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Shuang Guo
- Medicine Research Institute, Hubei Key Laboratory of Diabetes and Angiopathy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Siao Lu
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Jun Gong
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Long Wang
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Liqiong Ding
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Qingjie Chen
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China.
| | - Wu Liu
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China.
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6
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Karbelkar A, Ahlmark R, Zhou X, Austin K, Fan G, Yang VY, Furst A. Carbon Electrode-Based Biosensing Enabled by Biocompatible Surface Modification with DNA and Proteins. Bioconjug Chem 2023; 34:358-365. [PMID: 36633230 DOI: 10.1021/acs.bioconjchem.2c00542] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Modification of electrodes with biomolecules is an essential first step for the development of bioelectrochemical systems, which are used in a variety of applications ranging from sensors to fuel cells. Gold is often used because of its ease of modification with thiolated biomolecules, but carbon screen-printed electrodes (SPEs) are gaining popularity due to their low cost and fabrication from abundant resources. However, their effective modification with biomolecules remains a challenge; the majority of work to-date relies on nonspecific adhesion or broad amide bond formation to chemical handles on the electrode surface. By combining facile electrochemical modification to add an aniline handle to electrodes with a specific and biocompatible oxidative coupling reaction, we can readily modify carbon electrodes with a variety of biomolecules. Importantly, both proteins and DNA maintain bioactive conformations following coupling. We have then used biomolecule-modified electrodes to generate microbial monolayers through DNA-directed immobilization. This work provides an easy, general strategy to modify inexpensive carbon electrodes, significantly expanding their potential as bioelectrochemical systems.
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Affiliation(s)
- Amruta Karbelkar
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Rachel Ahlmark
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Xingcheng Zhou
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Katherine Austin
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Gang Fan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Victoria Y Yang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Ariel Furst
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States.,Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
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7
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Yan Y, Ni M, Wang F, Yu Y, Gong X, Huang Y, Tao W, Li C, Wang F. Metal-Organic Framework-Based Biosensor for Detecting Hydrogen Peroxide in Plants through Color-to-Thermal Signal Conversion. ACS NANO 2022; 16:15175-15187. [PMID: 36075214 DOI: 10.1021/acsnano.2c06481] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Plant biotic or abiotic stresses, such as pathogens, mechanical damage, or high temperature, can increase intracellular H2O2 concentration, damaging proteins, lipids, and DNA. Most current H2O2 detection methods require the separation or grinding of plant samples, inducing plant stresses, and the process is complicated and time-consuming. This paper constructed a metal-organic framework (MOF)-based biosensor for real-time, remote, and in situ detection of exogenous/endogenous H2O2 in plant organs through color-to-thermal signal conversion. By simply spraying horseradish peroxidase, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and the precursor of zeolite imidazolate frameworks-8 (ZIF-8), ZIF-8 biosensors were formed in situ on a plant root, petiole, or leaf. This biosensor could report sub-micromolar H2O2 in plants since the oxidation products, ABTS• +, emitted heat when they absorbed energy from near-infrared (NIR) light. Due to the plant's low absorption in the NIR region, the ZIF-8 biosensor allowed for remote thermal sensing of H2O2 transport or biotic/abiotic stresses in plants with a high signal-to-noise ratio combining NIR laser and thermometer. Our biosensor can be used for the future development of plant sensors for monitoring plant signaling pathways and metabolism that are nondestructive, minimally invasive, and capable of real-time, in situ analysis.
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Affiliation(s)
- Yong Yan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Min Ni
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Fan Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Yue Yu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Xin Gong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Yue Huang
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Wei Tao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Chao Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
| | - Feng Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China
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8
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Li YS, Wang B, Zhao Y, Gao XF. Simultaneous quantification of peroxidase/ascorbate in vegetables with slope and intercept of kinetic curves in a flow-injection recirculating-catalysis system. Food Chem 2022; 388:133053. [PMID: 35483291 DOI: 10.1016/j.foodchem.2022.133053] [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: 01/16/2022] [Revised: 03/31/2022] [Accepted: 04/21/2022] [Indexed: 11/04/2022]
Abstract
In using a flow-injection recirculating-catalysis system developed by us to research the simultaneous quantification for peroxidase and ascorbate, it was discovered that the concentrations of peroxidase activity and ascorbate are correlative with the slope and the negative intercept of the linear response curve during a peroxidase-catalyzed kinetic course. Therefore, based on this finding, a new analytical method and a simplified equation for quantifying the peroxidase activity concentration were proposed, Then, test conditions were optimized, finally the use of the method has realized the simultaneous determination for peroxidase of 2-40 U/L and ascorbate of 0.4-12 mg/L in various vegetables (60 μL). The assayed results were consistent with the comparison method, in which the repeatability (RSD < 1.43%, n = 11) was satisfactory. Another important conclusion obtained in this study is that the determination of the peroxidase activity in biosamples must use the kinetic curve method for fear of the influence from the ascorbate's lag phase.
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Affiliation(s)
- Yong-Sheng Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Ben Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yang Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiu-Feng Gao
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610065, China.
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9
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Bhandari Y, Sajwan H, Pandita P, Koteswara Rao V. Chloroperoxidase applications in chemical synthesis of industrial relevance. BIOCATAL BIOTRANSFOR 2022. [DOI: 10.1080/10242422.2022.2107919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Yogesh Bhandari
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, India
| | - Hemlata Sajwan
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, India
| | - Parul Pandita
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, India
| | - Vamkudoth Koteswara Rao
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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10
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Yoo S, Kim S, Jeon S, Han MS. Aldehyde N, N-dimethylhydrazone-based fluorescent substrate for peroxidase-mediated assays. RSC Adv 2022; 12:8668-8673. [PMID: 35424784 PMCID: PMC8984872 DOI: 10.1039/d2ra00087c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 02/22/2022] [Indexed: 11/21/2022] Open
Abstract
Numerous assays based on peroxidase activity have been developed for the detection of analytes due to the various optical peroxidase substrates. However, most substrates are sensitive to light and pH and are over-oxidized in the presence of excess H2O2. In this study, 2-((6-methoxynaphthalen-2-yl)methylene)-1,1-dimethylhydrazine (MNDH), a fluorescent peroxidase substrate prepared from naphthalene-based aldehyde N,N-dimethylhydrazone, was developed. MNDH showed quantitative fluorescence changes with respect to the H2O2 concentration in the presence of horseradish peroxidase (HRP), and the MNDH/HRP assay showed no changes in fluorescence caused by over-oxidation in the presence of excess H2O2. Further, MNDH was thermo- and photostable. Additionally, the assay could be operated over a considerably wide pH range, from acidic to neutral. Moreover, MNDH can be used to detect glucose quantitatively in human serum samples by using an enzyme cascade assay system.
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Affiliation(s)
- Soyeon Yoo
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Sudeok Kim
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Sangyeon Jeon
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Min Su Han
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
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11
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Wu T, Liu C, Hu X. Enzymatic synthesis, characterization and properties of the protein-polysaccharide conjugate: A review. Food Chem 2022; 372:131332. [PMID: 34818742 DOI: 10.1016/j.foodchem.2021.131332] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 09/26/2021] [Accepted: 10/02/2021] [Indexed: 01/08/2023]
Abstract
Poor solubility of proteins negatively affects their functional properties and greatly limits their application. Enzymatic cross-linking with polysaccharides can improve solubility and functional properties of proteins. The enzymes used include transglutaminase, laccase and peroxidase. Therefore, this work introduces the cross-linking mechanisms of these enzymes and the characterization techniques, the improved properties and the potential applications of the enzymatically-synthesized protein-polysaccharide conjugate. Transglutaminase catalyzes the formation of a new peptide bond and thus works on amino-containing polysaccharides to conjugate with proteins. However, laccase and peroxidase catalyze oxidation of various compounds with phenol and aniline structures. Therefore, these two enzymes can catalyze the conjugate reaction between proteins and feruloylated polysaccharides which are widely distributed in cereal bran. Compared with the unmodified protein, the enzymatically-synthesized protein-polysaccharide conjugate usually has higher solubility and better functional properties. Thus, it is inferred that enzymatic conjugation with polysaccharide molecules can extend the application of proteins.
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Affiliation(s)
- Tongfeng Wu
- The State Key Laboratory of Food Science and Technology, Nanchang University, China
| | - Chengmei Liu
- The State Key Laboratory of Food Science and Technology, Nanchang University, China
| | - Xiuting Hu
- The State Key Laboratory of Food Science and Technology, Nanchang University, China.
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12
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Wang J, Yao M, Bai G, Liu J, Wang Y. Inhibition of horseradish peroxidase activity through conformational change in surfactant solution. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiuxia Wang
- School of Chemistry and Chemical Engineering Henan Institute of Science and Technology Xinxiang Henan People's Republic of China
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan People's Republic of China
| | - Meihuan Yao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan People's Republic of China
| | - Guangyue Bai
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan People's Republic of China
| | - Junling Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan People's Republic of China
| | - Yujie Wang
- School of Chemistry and Chemical Engineering Henan Institute of Science and Technology Xinxiang Henan People's Republic of China
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13
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Muir RK, Guerra M, Bogyo MM. Activity-Based Diagnostics: Recent Advances in the Development of Probes for Use with Diverse Detection Modalities. ACS Chem Biol 2022; 17:281-291. [PMID: 35026106 DOI: 10.1021/acschembio.1c00753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abnormal enzyme expression and activity is a hallmark of many diseases. Activity-based diagnostics are a class of chemical probes that aim to leverage this dysregulated metabolic signature to produce a detectable signal specific to diseased tissue. In this Review, we highlight recent methodologies employed in activity-based diagnostics that provide exquisite signal sensitivity and specificity in complex biological systems for multiple disease states. We divide these examples based upon their unique signal readout modalities and highlight those that have advanced into clinical trials.
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Affiliation(s)
- Ryan K. Muir
- Department of Pathology and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Matteo Guerra
- Department of Pathology and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Matthew M. Bogyo
- Department of Pathology and Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California 94305, United States
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14
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Biocatalytic System Made of 3D Chitin, Silica Nanopowder and Horseradish Peroxidase for the Removal of 17α-Ethinylestradiol: Determination of Process Efficiency and Degradation Mechanism. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27041354. [PMID: 35209143 PMCID: PMC8876220 DOI: 10.3390/molecules27041354] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 11/26/2022]
Abstract
The occurrence of 17α-ethinylestradiol (EE2) in the environment and its removal have drawn special attention from the scientific community in recent years, due to its hazardous effects on human and wildlife around the world. Therefore, the aim of this study was to produce an efficient enzymatic system for the removal of EE2 from aqueous solutions. For the first time, commercial silica nanopowder and 3D fibrous chitinous scaffolds from Aplysina fistularis marine sponge were used as supports for horseradish peroxidase (HRP) immobilization. The effect of several process parameters onto the removal mechanism of EE2 by enzymatic conversion and adsorption of EE2 were investigated here, including system type, pH, temperature and concentrations of H2O2 and EE2. It was possible to fully remove EE2 from aqueous solutions using system SiO2(HRP)–chitin(HRP) over a wide investigated pH range (5–9) and temperature ranges (4–45 °C). Moreover, the most suitable process conditions have been determined at pH 7, temperature 25 °C and H2O2 and EE2 concentrations equaling 2 mM and 1 mg/L, respectively. As determined, it was possible to reuse the nanoSiO2(HRP)–chitin(HRP) system to obtain even 55% EE2 degradation efficiency after five consecutive catalytic cycles.
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15
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Heine V, Dey C, Bojarová P, Křen V, Elling L. Methods of in vitro study of galectin-glycomaterial interaction. Biotechnol Adv 2022; 58:107928. [DOI: 10.1016/j.biotechadv.2022.107928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/07/2022] [Accepted: 02/14/2022] [Indexed: 02/08/2023]
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16
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Škulj S, Barišić A, Mutter N, Spadiut O, Barišić I, Bertoša B. Effect of N-glycosylation on horseradish peroxidase structural and dynamical properties. Comput Struct Biotechnol J 2022; 20:3096-3105. [PMID: 35782731 PMCID: PMC9233188 DOI: 10.1016/j.csbj.2022.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/03/2022] [Accepted: 06/04/2022] [Indexed: 11/03/2022] Open
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17
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Grebennikova OV, Sulman AM, Matveeva VG. Influence of the Biocatalyst Support on the Activity of Immobilized Horseradish Root Peroxidase. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Olga V. Grebennikova
- Tver State Technical University Dept. of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
| | - Alexandrina M. Sulman
- Tver State Technical University Dept. of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
| | - Valentina G. Matveeva
- Tver State Technical University Dept. of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
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18
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Humer D, Spadiut O. Enzyme prodrug therapy: cytotoxic potential of paracetamol turnover with recombinant horseradish peroxidase. MONATSHEFTE FUR CHEMIE 2021; 152:1389-1397. [PMID: 34759433 PMCID: PMC8542555 DOI: 10.1007/s00706-021-02848-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 09/06/2021] [Indexed: 11/05/2022]
Abstract
Targeted cancer treatment is a promising, less invasive alternative to chemotherapy as it is precisely directed against tumor cells whilst leaving healthy tissue unaffected. The plant-derived enzyme horseradish peroxidase (HRP) can be used for enzyme prodrug cancer therapy with indole-3-acetic acid or the analgesic paracetamol (acetaminophen). Oxidation of paracetamol by HRP in the presence of hydrogen peroxide leads to N-acetyl-p-benzoquinone imine and polymer formation via a radical reaction mechanism. N-acetyl-p-benzoquinone imine binds to DNA and proteins, resulting in severe cytotoxicity. However, plant HRP is not suitable for this application since the foreign glycosylation pattern is recognized by the human immune system, causing rapid clearance from the body. Furthermore, plant-derived HRP is a mixture of isoenzymes with a heterogeneous composition. Here, we investigated the reaction of paracetamol with defined recombinant HRP variants produced in E. coli, as well as plant HRP, and found that they are equally effective in paracetamol oxidation at a concentration ≥ 400 µM. At low paracetamol concentrations, however, recombinant HRP seems to be more efficient in paracetamol oxidation. Yet upon treatment of HCT-116 colon carcinoma and FaDu squamous carcinoma cells with HRP-paracetamol no cytotoxic effect was observed, neither in the presence nor absence of hydrogen peroxide. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s00706-021-02848-x.
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Affiliation(s)
- Diana Humer
- TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Research Area Biochemical Engineering, Gumpendorfer Straße 1a, 1060 Vienna, Austria
| | - Oliver Spadiut
- TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Research Area Biochemical Engineering, Gumpendorfer Straße 1a, 1060 Vienna, Austria
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19
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Sosa Alderete LG, Ronchi H, Monjes NM, Agostini E. Tobacco hairy root's peroxidases are rhythmically controlled by phenol exposure. Enzyme Microb Technol 2021; 149:109856. [PMID: 34311893 DOI: 10.1016/j.enzmictec.2021.109856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 11/23/2022]
Abstract
Plants like almost all living organisms, have developed a biological clock or circadian clock (CC) capable of synchronizing and adjusting various metabolic and physiological processes at certain times of the day and in a period of 24 h. This endogenous timekeeping is able to predict the environmental changes providing adaptive advantages against stressful conditions. Therefore, the aim of this work was to analyze the possible link between metabolism of xenobiotic compounds (MXC) and the CC. Synchronized Nicotiana tabacum hairy roots (HRs) were used as a validated plant model system, and peroxidases (PODs), key enzymes of the phase I in the MCX, were evaluated after phenol treatment. Two POD genes were selected and their temporal expression profiles as well as the total POD activity were analyzed in order to find circadian oscillations either under control conditions or phenol treatment. It was demonstrated that these PODs genes showed oscillatory profiles with an ultradian period (period length shorter than the circadian period), and preserving the same phases and expression peaks still under phenol treatment. The total PODs activity showed also a marked oscillatory behavior mainly in phenol-treated HRs with the highest levels at ZT23. Untreated HRs showed decrease and increase in the intensity of some basic isoforms at light and dark phase, respectively, while in phenol- treated HRs, an increase in the intensity of almost all isoforms was observed, mainly during the dark phase, being coincident with the high PODs activity detected at ZT23. The periodic analysis determined an ultradian period either in total POD activity or in the POD activity of isoform VI, being 18.7 and 15.3 h, respectively. Curiously, in phenol treated HRs, the period length of total POD activity was longer than in untreated HRs, suggesting that phenol could induce a marked oscillatory behavior in the POD activity with better performance during the dark phase, which explain the higher phenol removal efficiencies at ZT23. These findings showed novel information about the performance of PODs, which would be rhythmically controlled at biochemical level, by phenol exposure.
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Affiliation(s)
- Lucas Gastón Sosa Alderete
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Argentina; Instituto de Biotecnología Ambiental y Salud, INBIAS-CONICET, Ruta Nacional 36 Km 601 (CP 5800), Río Cuarto, Córdoba, Argentina.
| | - Hebe Ronchi
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Argentina; Instituto de Biotecnología Ambiental y Salud, INBIAS-CONICET, Ruta Nacional 36 Km 601 (CP 5800), Río Cuarto, Córdoba, Argentina
| | - Natalia M Monjes
- CIQUIBIC-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina; Departamento de Química Biológica "Ranwel Caputto", Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Elizabeth Agostini
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Argentina; Instituto de Biotecnología Ambiental y Salud, INBIAS-CONICET, Ruta Nacional 36 Km 601 (CP 5800), Río Cuarto, Córdoba, Argentina
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20
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Dye Decoloring Peroxidase Structure, Catalytic Properties and Applications: Current Advancement and Futurity. Catalysts 2021. [DOI: 10.3390/catal11080955] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dye decoloring peroxidases (DyPs) were named after their high efficiency to decolorize and degrade a wide range of dyes. DyPs are a type of heme peroxidase and are quite different from known heme peroxidases in terms of amino acid sequences, protein structure, catalytic residues, and physical and chemical properties. DyPs oxidize polycyclic dyes and phenolic compounds. Thus they find high application potentials in dealing with environmental problems. The structure and catalytic characteristics of DyPs of different families from the amino acid sequence, protein structure, and enzymatic properties, and analyzes the high-efficiency degradation ability of some DyPs in dye and lignin degradation, which vary greatly among DyPs classes. In addition, application prospects of DyPs in biomedicine and other fields are also discussed briefly. At the same time, the research strategy based on genetic engineering and synthetic biology in improving the stability and catalytic activity of DyPs are summarized along with the important industrial applications of DyPs and associated challenges. Moreover, according to the current research findings, bringing DyPs to the industrial level may require improving the catalytic efficiency of DyP, increasing production, and enhancing alkali resistance and toxicity.
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21
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Hamedi S, Afsahi MM, Riahi-Madvar A, Mohebbi A. Modeling and optimization of radish root extract drying as peroxidase source using spouted bed dryer. Sci Rep 2021; 11:14362. [PMID: 34257335 PMCID: PMC8277770 DOI: 10.1038/s41598-021-93563-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/28/2021] [Indexed: 11/29/2022] Open
Abstract
The main advantages of the dried enzymes are the lower cost of storage and longer time of preservation for industrial applications. In this study, the spouted bed dryer was utilized for drying the garden radish (Raphanus sativus L.) root extract as a cost-effective source of the peroxidase enzyme. The response surface methodology (RSM) was used to evaluate the individual and interactive effects of main parameters (the inlet air temperature (T) and the ratio of air flow rate to the minimum spouting air flow rate (Q)) on the residual enzyme activity (REA). The maximum REA of 38.7% was obtained at T = 50 °C and Q = 1.4. To investigate the drying effect on the catalytic activity, the optimum reaction conditions (pH and temperature), as well as kinetic parameters, were investigated for the fresh and dried enzyme extracts (FEE and DEE). The obtained results showed that the optimum pH of DEE was decreased by 12.3% compared to FEE, while the optimum temperature of DEE compared to FEE increased by a factor of 85.7%. Moreover, kinetic parameters, thermal-stability, and shelf life of the enzyme were considerably improved after drying by the spouted bed. Overall, the results confirmed that a spouted bed reactor can be used as a promising method for drying heat-sensitive materials such as peroxidase enzyme.
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Affiliation(s)
- Shahrbanoo Hamedi
- Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
| | - M Mehdi Afsahi
- Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Ali Riahi-Madvar
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, Kosar University of Bojnord, Bojnord, Iran.
| | - Ali Mohebbi
- Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
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22
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Abiological catalysis by myoglobin mutant with a genetically incorporated unnatural amino acid. Biochem J 2021; 478:1795-1808. [PMID: 33821889 PMCID: PMC10071548 DOI: 10.1042/bcj20210091] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 12/13/2022]
Abstract
To inculcate biocatalytic activity in the oxygen-storage protein myoglobin (Mb), a genetically engineered myoglobin mutant H64DOPA (DOPA = L-3,4-dihydroxyphenylalanine) has been created. Incorporation of unnatural amino acids has already demonstrated their ability to accomplish many non-natural functions in proteins efficiently. Herein, the presence of redox-active DOPA residue in the active site of mutant Mb presumably stabilizes the compound I in the catalytic oxidation process by participating in an additional hydrogen bonding (H-bonding) as compared to the WT Mb. Specifically, a general acid-base catalytic pathway was achieved due to the availability of the hydroxyl moieties of DOPA. The reduction potential values of WT (E° = -260 mV) and mutant Mb (E° = -300 mV), w.r.t. Ag/AgCl reference electrode, in the presence of hydrogen peroxide, indicated an additional H-bonding in the mutant protein, which is responsible for the peroxidase activity of the mutant Mb. We observed that in the presence of 5 mM H2O2, H64DOPA Mb oxidizes thioanisole and benzaldehyde with a 10 and 54 folds higher rate, respectively, as opposed to WT Mb. Based on spectroscopic, kinetic, and electrochemical studies, we deduce that DOPA residue, when present within the distal pocket of mutant Mb, alone serves the role of His/Arg-pair of peroxidases.
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23
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Zhu B, Zhao F, Hao P, Yu H, Jiang R, Liu Q, Liu Z. A fast phosphate colorimetric sensor based on MoS 2/UiO-66 (Fe/Zr) nanocomposites as oxidase-/peroxidase-like nanoenzymes. NEW J CHEM 2021. [DOI: 10.1039/d1nj03149j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
According to the excellent peroxidase activity of MoS2/UiO-66(Fe/Zr) as well as specific recognition towards phosphate (Pi), a fast cheap colorimetric sensing platform has been established to determine phosphate.
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Affiliation(s)
- Baocan Zhu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Fengyang Zhao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Pingping Hao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Hongguan Yu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Renxia Jiang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qingyun Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Zhenxue Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
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24
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Moon J, Kwon HJ, Yong D, Lee IC, Kim H, Kang H, Lim EK, Lee KS, Jung J, Park HG, Kang T. Colorimetric Detection of SARS-CoV-2 and Drug-Resistant pH1N1 Using CRISPR/dCas9. ACS Sens 2020; 5:4017-4026. [PMID: 33270431 PMCID: PMC7724983 DOI: 10.1021/acssensors.0c01929] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/19/2020] [Indexed: 12/13/2022]
Abstract
Viruses have been a continuous threat to human beings. The coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has led to a pandemic that is still ongoing worldwide. Previous pandemic influenza A virus (pH1N1) might be re-emerging through a drug-resistant mutation. We report a colorimetric viral detection method based on the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 endonuclease dead (dCas9) system. In this method, RNA in the viral lysate was directly recognized by the CRISPR/dCas9 system with biotin-protospacer adjacent motif (PAM)-presenting oligonucleotide (PAMmer). Streptavidin-horseradish peroxidase then bound to biotin-PAMmer, inducing a color change through the oxidation of 3,3',5,5'-tetramethylbenzidine. Using the developed method, we successfully identified SARS-CoV-2, pH1N1, and pH1N1/H275Y viruses by the naked eye. Moreover, the detection of viruses in human nasopharyngeal aspirates and sputum was demonstrated. Finally, clinical samples from COVID-19 patients led to a successful diagnosis. We anticipate that the current method can be employed for simple and accurate diagnosis of viruses.
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Affiliation(s)
- Jeong Moon
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
- Department of Chemical and
Biomolecular Engineering, KAIST, 291
Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of
Korea
| | - Hyung-Jun Kwon
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and
Research Institute of Bacterial Resistance, Yonsei
University College of Medicine, 50-1 Yonsei-ro,
Seodaemun-gu, Seoul 03722, Republic of Korea
| | - In-Chul Lee
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Hongki Kim
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Hyunju Kang
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology,
KRIBB School of Biotechnology, UST,
217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of
Korea
| | - Kyu-Sun Lee
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology,
KRIBB School of Biotechnology, UST,
217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of
Korea
| | - Hyun Gyu Park
- Department of Chemical and
Biomolecular Engineering, KAIST, 291
Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of
Korea
| | - Taejoon Kang
- Bionanotechnology Research Center and
Functional Biomaterial Research Center,
KRIBB, 125 Gwahak-ro, Yuseong-gu,
Daejeon 34141, Republic of Korea
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25
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Wei Z, Xi Z, Vlasov S, Ayala J, Xia X. Nanocrystals of platinum-group metals as peroxidase mimics for in vitro diagnostics. Chem Commun (Camb) 2020; 56:14962-14975. [PMID: 33188672 DOI: 10.1039/d0cc06575g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peroxidase mimics of nanoscale materials as alternatives to natural peroxidases have found widespread uses in biomedicine. Among various types of peroxidase mimics, platinum-group metal (PGM) nanocrystals have drawn considerable attention in recent years due to their superior properties. Particularly, PGM nanocrystals display high catalytic efficiencies, allow for facile surface modifications, and possess excellent stabilities. This feature article summarizes our recent work on development of PGM nanocrystals as peroxidase mimics and exploration of their applications in in vitro diagnostics. We begin with a brief introduction to controlled synthesis of PGM nanocrystals in solution phase. We then elaborate on a variety of physicochemical parameters that can be carefully tuned to optimize the peroxidase-like properties of PGM nanocrystals. Then, we highlight the applications of PGM nanocrystals in different in vitro diagnostic platforms. We conclude this article with personal perspectives on future research directions in this emerging field, where challenges and opportunities are remarked.
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Affiliation(s)
- Zhiyuan Wei
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, USA.
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26
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Abstract
Silk fibroin produced from silkworms has been intensively utilized as a scaffold material for a variety of biotechnological applications owing to its remarkable mechanical strength, extensibility, biocompatibility, and ease of biofunctionalization. In this research, we engineered silk as a novel trap platform capable of capturing microorganisms. Specifically, we first fabricated the silk material into a silk sponge by lyophilization, yielding a 3D scaffold with porous microstructures. The sponge stability in water was significantly improved by ethanol treatment with elevated β-sheet content and crystallinity of silk. Next, we biofunctionalized the silk sponge with a poly-specific microbial targeting molecule, ApoH (apolipoprotein H), to enable a novel silk-based microbial trap. The recombinant ApoH engineered with an additional penta-tyrosine was assembled onto the silk sponge through the horseradish peroxidase (HRP) mediated dityrosine cross-linking. Last, the ApoH-decorated silk sponge was demonstrated to be functional in capturing our model microorganism targets, E. coli and norovirus-like particles. We envision that this biofabricated silk platform, capable of trapping a variety of microbial entities, could serve as a versatile scaffold for rapid isolation and enrichment of microbial samples toward future diagnostics and therapeutics. This strategy, in turn, can expedite advancing future biodevices with functionality and sustainability.
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Affiliation(s)
- Shan-Ru Wu
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Jheng-Liang Chen
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Hsuan-Chen Wu
- Department of Biochemical Science and Technology, National Taiwan University, Taipei 10617, Taiwan
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27
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Peroxidase from waste cabbage (Brassica oleracea capitata L.) exhibits the potential to biodegrade phenol and synthetic dyes from wastewater. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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28
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Oloketuyi S, Annovi G, de Marco A. Peroxidase zymograms obtained by agarose native gel electrophoresis have unmet resolution and completeness. Int J Biol Macromol 2020; 156:869-873. [DOI: 10.1016/j.ijbiomac.2020.04.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 02/01/2023]
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29
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Mizuno H, Takayama E, Satoh A, Into T, Adachi M, Ekuni D, Yashiro K, Mizuno-Kamiya M, Nagayama M, Saku S, Tomofuji T, Doi Y, Murakami Y, Kondoh N, Morita M. Horseradish peroxidase interacts with the cell wall peptidoglycans on oral bacteria. Exp Ther Med 2020; 20:2822-2827. [PMID: 32765778 DOI: 10.3892/etm.2020.9016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 11/23/2018] [Indexed: 11/06/2022] Open
Abstract
Salivary peroxidase and myeloperoxidase are known to display antibacterial activity against oral microbes, and previous indications have pointed to the possibility that horseradish peroxidase (HRP) adsorbs onto the membrane of the major oral streptococci, Streptococcus mutans and Streptococcus sanguinis (S. sanguinis). However, the mechanism of interaction between HRP and the bacterial cell wall component is unclear. Dental plaques containing salivary glycoproteins and extracellular microbial products are visualized with 'dental plaque disclosing agent', and are controlled within dental therapy. However, current 'dental plaque disclosing agents' are difficult to evaluate with just dental plaques, since they stain and disclose not only dental plaques but also pellicle formed with salivary glycoproteins on a tooth surface. In this present study, we have demonstrated that HRP interacted with the cell wall component of the major gram-positive bacterial peptidoglycan, but not the major cell wall component of gram-negative bacteria lipopolysaccharide. Furthermore, we observed that the adsorbed HRP labeled with fluorescence was detected on the major oral gram-positive strains S. sanguinis and Streptococcus salivarius (S. salivarius), but not on a gram-negative strain, Escherichia coli (E. coli). Furthermore, we have demonstrated that the combination of HRP and chromogenic substrate clearly disclosed the dental plaques and the biofilm developed by S. sanguinis, S. salivarius and the major gram-postive bacteria Lactobacillus casei on tooth surfaces, and slightly disclosed the biofilm by E. coli. The combination of HRP and chromogenic substrate did not stain either the dental pellicle with the salivary glycoprotein mucin, or naked tooth surfaces. These results have suggested the possibility that the adsorption activity of HRP not only contributes to the evaluation of dental plaque, but that enzymatic activity of HRP may also contribute to improve dental hygiene.
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Affiliation(s)
- Hirofumi Mizuno
- Department of Preventive Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan.,Department of Oral Biochemistry, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Eiji Takayama
- Department of Oral Biochemistry, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Ayano Satoh
- Department of Medical Bioengineering, Graduate School of Interdisciplinary Science and Engineering in Healthcare Systems, Okayama University, Okayama 700-8530, Japan
| | - Takeshi Into
- Department of Oral Microbiology, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Masanori Adachi
- Department of Dental Materials Science, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Daisuke Ekuni
- Department of Preventive Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Koji Yashiro
- Department of Oral Biochemistry, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan.,Department of Chemistry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Masako Mizuno-Kamiya
- Department of Oral Biochemistry, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan.,Chemistry Laboratory, Department of Bussiness Administration, Asahi University School of Business Administration, Mizuho, Gifu 501-0296, Japan
| | - Motohiko Nagayama
- Department of Oral Pathology, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Seitaro Saku
- Department of Operative Dentistry, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Takaaki Tomofuji
- Department of Preventive Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan.,Community Oral Health, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Yutaka Doi
- Department of Dental Materials Science, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Yukitaka Murakami
- Department of Oral Microbiology, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Nobuo Kondoh
- Department of Oral Biochemistry, Asahi University School of Dentistry, Mizuho, Gifu 501-0296, Japan
| | - Manabu Morita
- Department of Preventive Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
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Zetzsche LE, Narayan ARH. Broadening the scope of biocatalytic C-C bond formation. Nat Rev Chem 2020; 4:334-346. [PMID: 34430708 PMCID: PMC8382263 DOI: 10.1038/s41570-020-0191-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2020] [Indexed: 12/18/2022]
Abstract
The impeccable control over chemo-, site-, and stereoselectivity possible in enzymatic reactions has led to a surge in the development of new biocatalytic methods. Despite carbon-carbon (C-C) bonds providing the central framework for organic molecules, development of biocatalytic methods for their formation has been largely confined to the use of a select few lyases over the last several decades, limiting the types of C-C bond-forming transformations possible through biocatalytic methods. This Review provides an update on the suite of enzymes available for highly selective biocatalytic C-C bond formation. Examples will be discussed in reference to the (1) native activity of enzymes, (2) alteration of activity through protein or substrate engineering for broader applicability, and (3) utility of the biocatalyst for abiotic synthesis.
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Affiliation(s)
- Lara E. Zetzsche
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Alison R. H. Narayan
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
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Scalable High-Performance Production of Recombinant Horseradish Peroxidase from E. coli Inclusion Bodies. Int J Mol Sci 2020; 21:ijms21134625. [PMID: 32610584 PMCID: PMC7369975 DOI: 10.3390/ijms21134625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/19/2020] [Accepted: 06/26/2020] [Indexed: 01/31/2023] Open
Abstract
Horseradish peroxidase (HRP), an enzyme omnipresent in biotechnology, is still produced from hairy root cultures, although this procedure is time-consuming and only gives low yields. In addition, the plant-derived enzyme preparation consists of a variable mixture of isoenzymes with high batch-to-batch variation preventing its use in therapeutic applications. In this study, we present a novel and scalable recombinant HRP production process in Escherichia coli that yields a highly pure, active and homogeneous single isoenzyme. We successfully developed a multi-step inclusion body process giving a final yield of 960 mg active HRP/L culture medium with a purity of ≥99% determined by size-exclusion high-performance liquid chromatography (SEC-HPLC). The Reinheitszahl, as well as the activity with 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and 3,3',5,5'-tetramethylbenzidine (TMB) as reducing substrates, are comparable to commercially available plant HRP. Thus, our preparation of recombinant, unglycosylated HRP from E. coli is a viable alternative to the enzyme from plant and highly interesting for therapeutic applications.
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32
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Hopp MT, Schmalohr BF, Kühl T, Detzel MS, Wißbrock A, Imhof D. Heme Determination and Quantification Methods and Their Suitability for Practical Applications and Everyday Use. Anal Chem 2020; 92:9429-9440. [PMID: 32490668 DOI: 10.1021/acs.analchem.0c00415] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Many research institutions, clinical diagnostic laboratories, and blood banks are desperately searching for a possibility to identify and quantify heme in different physiological and pathological settings as well as various research applications. The reasons for this are the toxicity of the heme and the fact that it acts as a hemolytic and pro-inflammatory molecule. Heme only exerts these severe and undesired effects when it is not incorporated in hemoproteins. Upon release from the hemoproteins, it enters a biologically available state (labile heme), in which it is loosely associated with proteins, lipids, nucleic acids, or other molecules. While the current methods and procedures for quantitative determination of heme have been used for many years in different settings, their value is limited by the challenging chemical properties of heme. A major cause of inadequate quantification is the separation of labile and permanently bound heme and its high aggregation potential. Thus, none of the current methods are utilized as a generally applicable, standardized approach. The aim of this Feature is to describe and summarize the most common and frequently used chemical, analytical, and biochemical methods for the quantitative determination of heme. Based on this overview, the most promising approaches for future solutions to heme quantification are highlighted.
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Affiliation(s)
- Marie-T Hopp
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany
| | - Benjamin F Schmalohr
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany
| | - Toni Kühl
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany
| | - Milena S Detzel
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany
| | - Amelie Wißbrock
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany
| | - Diana Imhof
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, D-53121 Bonn, Germany
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Singh M, Bharadwaj K, Dey ES, Dicko C. Sonication enhances the stability of MnO 2 nanoparticles on silk film template for enzyme mimic application. ULTRASONICS SONOCHEMISTRY 2020; 64:105011. [PMID: 32097868 DOI: 10.1016/j.ultsonch.2020.105011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/23/2020] [Accepted: 02/06/2020] [Indexed: 06/10/2023]
Abstract
We have developed an in-situ method using sonication (3 mm probe sonicator, 30 W, 20 kHz) and auto-reduction (control) to study the mechanism of the formation of manganese dioxide (MnO2) on a solid template (silk film), and its resulting enzymatic activity on tetramethylbenzidine (TMB) substrate. The fabrication of the silk film was first optimized for stability (no degradation) and optical transparency. A factorial approach was used to assess the effect of sonication time and the initial concentration of potassium permanganate (KMnO4). The result indicated a significant correlation with a fraction of KMnO4 consumed and MnO2 formation. Further, we found that the optimal process conditions to obtain a stable silk film with highly catalytic MnO2 nanoparticles (NPs) was 30 min of sonication in the presence of 0.5 mM of KMnO4 at a temperature of 20-24 °C. Under the optimal condition, we monitored in-situ the formation of MnO2 on the silk film, and after thorough rinsing, the in-situ catalysis of 0.8 mM of TMB substrate. For control, we used the auto-reduction of KMnO4 onto the silk film after about 16 h. The result from single-wavelength analysis confirmed the different kinetics rates for the formation of MnO2 via sonication and auto-reduction. The result from the multivariate component analysis indicated a three components route for sonication and auto-reduction to form MnO2-Silk. Overall, we found that the smaller size, more mono-dispersed, and deeper buried MnO2 NPs in silk film prepared by sonication, conferred a higher catalytic activity and stability to the hybrid material.
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Affiliation(s)
- Manish Singh
- Dept. Chemistry, Division for Pure and Applied Biochemistry, Lund University, Sweden.
| | - Kishan Bharadwaj
- Dept. Chemistry, Division for Pure and Applied Biochemistry, Lund University, Sweden
| | - Estera S Dey
- Dept. Chemistry, Division for Pure and Applied Biochemistry, Lund University, Sweden
| | - Cedric Dicko
- Dept. Chemistry, Division for Pure and Applied Biochemistry, Lund University, Sweden.
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Popovici V, Bucur LA, Schröder V, Gherghel D, Mihai CT, Caraiane A, Badea FC, Vochița G, Badea V. Evaluation of the Cytotoxic Activity of the Usnea barbata (L.) F. H. Wigg Dry Extract. Molecules 2020; 25:E1865. [PMID: 32316674 PMCID: PMC7221659 DOI: 10.3390/molecules25081865] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 11/16/2022] Open
Abstract
The secondary metabolites of lichens have proven to be promising sources of anticancer drugs; one of the most important of these is usnic acid, which is a phenolic compound with dibenzofuran structure that is responsible for the numerous biological actions of lichens of genus Usnea. As a result, in this study, we related to this phenolic secondary metabolite. The aim of the present study is the evaluation of the cytotoxic activity of Usnea barbata (L.) F. H. Wigg dry acetone extract (UBE). In advance, the usnic acid content was determined in various extracts of Usnea barbata (L.) F. H. Wigg: the liquid extracts were found in water, ethanol, acetone, and the dry acetone extract; the highest usnic acid quantity was found in the dry acetone extract. First, the cytotoxic action of UBE was assessed using Brine Shrimp Lethality (BSL) test; a significant lethal effect was obtained after 24 h of treatment at high used concentrations of UBE, and it was quantified by the high mortality rate of the Artemia salina (L.) larvae. Secondly, in vitro cytotoxicity of UBE was evaluated on human tongue squamous cells carcinoma, using CAL 27 (ATCC® CRL-2095™) cell line. The most intense cytotoxic effect of UBE on CAL 27 cells was registered after 24 h; this response is directly proportional with the tested UBE concentrations. The obtained results have been reported regarding usnic acid content of UBE, and the data show that CAL 27 cells death was induced by apoptosis and high oxidative stress.
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Affiliation(s)
- Violeta Popovici
- Departament of Microbiology and Immunology, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Street, 900684 Constanta, Romania; (V.P.); (V.B.)
| | - Laura Adriana Bucur
- Department of Pharmacognosy, Faculty of Pharmacy, Ovidius University of Constanta, 6 Capitan Al. Serbanescu Street, 900001 Constanta, Romania;
| | - Verginica Schröder
- Department of Cellular and Molecular Biology, Faculty of Pharmacy, Ovidius University of Constanta, 6 Capitan Al. Serbanescu Street, 900001 Constanta, Romania
| | - Daniela Gherghel
- Institute of Biological Research Iasi, branch of NIRDBS, 47 Lascar Catargi Street, 700107 Iasi, Romania; (C.T.M.); (G.V.)
| | - Cosmin Teodor Mihai
- Institute of Biological Research Iasi, branch of NIRDBS, 47 Lascar Catargi Street, 700107 Iasi, Romania; (C.T.M.); (G.V.)
- Advanced Centre for Research and Development in Experimental Medicine (CEMEX), “Grigore T. Popa” University of Medicine and Pharmacy Iasi, 9-13 Mihail Kogalniceanu Street, 700259 Iasi, Romania
| | - Aureliana Caraiane
- Department of Oral Rehabilitation, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Str., 900684 Constanta, Romania; (A.C.); (F.C.B.)
| | - Florin Ciprian Badea
- Department of Oral Rehabilitation, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Str., 900684 Constanta, Romania; (A.C.); (F.C.B.)
| | - Gabriela Vochița
- Institute of Biological Research Iasi, branch of NIRDBS, 47 Lascar Catargi Street, 700107 Iasi, Romania; (C.T.M.); (G.V.)
| | - Victoria Badea
- Departament of Microbiology and Immunology, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Street, 900684 Constanta, Romania; (V.P.); (V.B.)
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35
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Yu K, Zhang H, Su C, Zhu Y. Visible-Light-Promoted Efficient Aerobic Dehydrogenation of N-Heterocycles by a Tiny Organic Semiconductor Under Ambient Conditions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000170] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kunyi Yu
- Department of Chemistry; Tsinghua University; 100084 Beijing PR China
| | - Hanjie Zhang
- Department of Chemistry; Tsinghua University; 100084 Beijing PR China
| | - Chenliang Su
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province; Institute of Microscale Optoelectronics; Shenzhen University; 518060 Shenzhen PR China
| | - Yongfa Zhu
- Department of Chemistry; Tsinghua University; 100084 Beijing PR China
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36
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Chakma S, Dikshit PK, Galodiya MN, Giri AS, Moholkar VS. The role of ultrasound in enzymatic degradation mechanism. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2019.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Routoula E, Patwardhan SV. Degradation of Anthraquinone Dyes from Effluents: A Review Focusing on Enzymatic Dye Degradation with Industrial Potential. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:647-664. [PMID: 31913605 DOI: 10.1021/acs.est.9b03737] [Citation(s) in RCA: 167] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Up to 84 000 tons of dye can be lost in water, and 90 million tons of water are attributed annually to dye production and their application, mainly in the textile and leather industry, making the dyestuff industry responsible for up to 20% of the industrial water pollution. The majority of dyes industrially used today are aromatic compounds with complex, reinforced structures, with anthraquinone dyes being the second largest produced in terms of volume. Despite the progress on decolorization and degradation of azo dyes, very little attention has been given to anthraquinone dyes. Anthraquinone dyes pose a serious environmental problem as their reinforced structure makes them difficult to degrade naturally. Existing methods of decolorization might be effective but are neither efficient nor practical due to extended time, space, and cost requirements. Attention should be given to the emerging routes for dye decolorization via the enzymatic action of oxidoreductases, which have already a strong presence in various other bioremediation applications. This review will discusses the presence of anthraquinone dyes in the effluents and ways for their remediation from dyehouse effluents, focusing on enzymatic processes.
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Affiliation(s)
- Eleni Routoula
- Department of Chemical and Biological Engineering , University of Sheffield Mappin Street , Sheffield , United Kingdom , S1 3JD
| | - Siddharth V Patwardhan
- Department of Chemical and Biological Engineering , University of Sheffield Mappin Street , Sheffield , United Kingdom , S1 3JD
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38
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Enhanced Colorimetric Signal for Accurate Signal Detection in Paper-Based Biosensors. Diagnostics (Basel) 2020; 10:diagnostics10010028. [PMID: 31936174 PMCID: PMC7167932 DOI: 10.3390/diagnostics10010028] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 11/16/2022] Open
Abstract
Paper-based colorimetric biosensors combine the use of paper with colorimetric signal detection. However, they usually demonstrate lower sensitivities because a signal amplification procedure has not been used. Stopping the reaction of colorimetric signal generation is often used in lab-based assays in order to amplify and stabilize the colorimetric signal for detection. In this study, the generation of a stopped colorimetric signal was examined for accurate and enhanced signal detection in paper-based biosensors. The colorimetric reaction in biosensors is usually based on the interaction between the enzyme horseradish peroxidase (HRP) and a selected chromogenic substrate. The two most commonly used HRP substrates, 3,3’,5,5’-tetramethylbenzidine (TMB) and 2’-azinobis (3-ethylbenzothiazoline-6-sulfonic-acid) (ABTS), were compared in terms of their ability to generate a stopped colorimetric signal on membrane. The stopped colorimetric signal was visible for TMB but not for ABTS. Moreover, the generation of stopped colorimetric signal was dependent on the presence of polyvinylidene-difluoride (PVDF) membrane as the separation layer. With PVDF the colorimetric signal (color intensity) was higher (TMB: 126 ± 6 and ABTS: 121 ± 9) in comparison to without PVDF (TMB: 110 ± 2 and ABTS: 102 ± 4). The TMB stopped colorimetric signal demonstrated a more stable signal detection with lower standard deviation values. To conclude, a stopped colorimetric signal can be generated in paper-based biosensors for enhanced and accurate signal detection.
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Panzarasa G. The horseradish smile: Demonstrating characteristic reactions of peroxidase in a visually appealing way. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2020; 48:38-43. [PMID: 31596539 DOI: 10.1002/bmb.21310] [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: 12/16/2018] [Revised: 07/06/2019] [Accepted: 09/12/2019] [Indexed: 06/10/2023]
Abstract
Easy and visually appealing demonstrations are precious tools for introducing students to the study of enzymes. However, they most often involve purified enzymes and dedicated techniques. Here, we propose a set of demonstrations, which require only fresh horseradish root and consumer chemicals, to help support biochemistry and enzymology courses from high school to the undergraduate level. Horseradish root is a naturally rich source of horseradish peroxidase, an enzyme with many relevant practical applications. Slices of horseradish root are used to demonstrate the characteristic reaction of horseradish peroxidase with hydrogen peroxide, the selective inhibition of this enzyme by dilute hydrochloric acid, its chromogenic reaction with N,N'-diethyl-p-phenylenediamine, and its ability to trigger the chemiluminescent reaction of luminol. © 2019 International Union of Biochemistry and Molecular Biology, 48(1):38-43, 2020.
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Affiliation(s)
- Guido Panzarasa
- Department of Polymer Engineering and Science, Montanuniversität, Leoben, 8700, Austria
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40
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Li YS, Zhao Y, Li QJ, Wang B, Gao XF. Exploration and quantification of ascorbate affecting peroxidase-catalyzed chromogenic reactions with a recirculating-flow catalysis detection system. Chem Commun (Camb) 2020; 56:11481-11484. [PMID: 32857094 DOI: 10.1039/d0cc04163g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This research used a recirculating-flow catalysis detection system to explore the ascorbate interference with peroxidase-catalyzed reactions and simultaneously determined peroxidase and ascorbate with a kinetic curve.
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Affiliation(s)
- Yong-Sheng Li
- School of Chemical Engineering
- Sichuan University
- Chengdu 6100651
- China
| | - Yang Zhao
- School of Chemical Engineering
- Sichuan University
- Chengdu 6100651
- China
| | - Qiao-Jing Li
- Department of Chemistry
- School of Science
- The University of Tokyo
- Tokyo
- Japan
| | - Ben Wang
- School of Chemical Engineering
- Sichuan University
- Chengdu 6100651
- China
| | - Xiu-Feng Gao
- West China School of Basic Medical Sciences & Forensic Medicine
- Sichuan University
- Chengdu 610065
- China
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41
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Wu SH, Huang XB, Tang Y, Ma LM, Liu Y, Sun JJ. Temperature controllable electrochemical sensors based on horseradish peroxidase as electrocatalyst at heated Au disk electrode and its preliminary application for H 2O 2 detection. Anal Chim Acta 2019; 1096:44-52. [PMID: 31883590 DOI: 10.1016/j.aca.2019.10.052] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 01/08/2023]
Abstract
In this paper, horseradish peroxidase (HRP) was successfully immobilized on heated Au disk electrode (HAuDE) by biotin-streptavidin specific interaction through HS-ssDNA-biotin self-assembled on HAuDE for investigation the electrocatalytic activity of HRP. With elevated electrode temperature, the significant temperature effect of the electrocatalytic activity of HRP for H2O2 reduction was demonstrated by using this bio-sensing platform. With an electrode temperature of 40 °C, a detection limit of 1.5 × 10-6 mol L-1 for H2O2 reduction could be obtained, which was more than one magnitude lower than that with an electrode temperature of 0 °C. Because HRP can be widely used as an enzyme label for amplification detection, this sensing platform can be broadly applied to analytical chemistry such as nucleic acid detection, and aptamer-based biosensors.
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Affiliation(s)
- Shao-Hua Wu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.
| | - Xiao-Bin Huang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - You Tang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Li-Min Ma
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Yan Liu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Jian-Jun Sun
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
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42
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RETRACTED ARTICLE: Carbon Dots as Artificial Peroxidases for Analytical Applications. JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00107-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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43
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Phan TNQ, Le-Vinh B, Efiana NA, Bernkop-Schnürch A. Oral self-emulsifying delivery systems for systemic administration of therapeutic proteins: science fiction? J Drug Target 2019; 27:1017-1024. [DOI: 10.1080/1061186x.2019.1584200] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Thi Nhu Quynh Phan
- Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens University Innsbruck, Innsbruck, Austria
- Faculty of Pharmacy, University of Medicine and Pharmacy, Hue University, Vietnam
| | - Bao Le-Vinh
- Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens University Innsbruck, Innsbruck, Austria
- Department of Industrial Pharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam
| | - Nuri Ari Efiana
- Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens University Innsbruck, Innsbruck, Austria
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universitas Ahmad Dahlan, Jl. Prof.Dr. Soepomo, S.H., Janturan, Warungboto, Umbulharjo, Yogyakarta, Indonesia
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, Leopold-Franzens University Innsbruck, Innsbruck, Austria
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Patmawati, Minamihata K, Tatsuke T, Lee JM, Kusakabe T, Kamiya N. Functional horseradish peroxidase-streptavidin chimeric proteins prepared using a silkworm-baculovirus expression system for diagnostic purposes. J Biotechnol 2019; 297:28-31. [PMID: 30885655 DOI: 10.1016/j.jbiotec.2019.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 01/12/2023]
Abstract
Rapid, convenient, sensitive detection methods are of the utmost importance in analytical tools. Enzyme-based signal amplification using horseradish peroxidase (HRP) is commonly implemented in clinical diagnostics kits based on enzyme-linked immunosorbent assay (ELISA), by which the limit of detection is greatly improved. Herein we report the design and preparation of recombinant fusion proteins comprising HRP and streptavidin (Stav), in which HRP was fused to either the N- or C-terminus of Stav ((HRP)4-Stav or Stav-(HRP)4, respectively) using a baculovirus-silkworm expression system. Both (HRP)4-Stav and Stav-(HRP)4 were secreted in the apo form but they were easily converted to the holo form and activated by simple incubation with hemin overnight at 4 °C. The activated (HRP)4-Stav and Stav-(HRP)4 could be combined with a commercial biotinylated anti-OVA IgG antibody to detect ovalbumin (OVA) as the antigen in ELISA. The enzymatic activity of (HRP)4-Stav was twofold higher than that of Stav-(HRP)4, and the sensitivity of (HRP)4-Stav in ELISA was higher than that of a commercial HRP-Stav chemical conjugate. The successful use of (HRP)4-Stav chimeric protein as a molecular probe in ELISA shows that the baculovirus-silkworm expression system is promising to produce enzyme-Stav conjugates to substitute for those prepared by chemical methods.
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Affiliation(s)
- Patmawati
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kosuke Minamihata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tsuneyuki Tatsuke
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Jae Man Lee
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Takahiro Kusakabe
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Noriho Kamiya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan; Division of Biotechnology, Center for Future Chemistry, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
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Szunerits S, Mishyn V, Grabowska I, Boukherroub R. Electrochemical cardiovascular platforms: Current state of the art and beyond. Biosens Bioelectron 2019; 131:287-298. [PMID: 30851492 DOI: 10.1016/j.bios.2019.02.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 01/18/2019] [Accepted: 02/04/2019] [Indexed: 01/12/2023]
Abstract
Cardiovascular diseases (CVD) remain the leading cause of death within industrialized nations as well as an increasing cause of mortality and morbidity in many developing countries. Smoking, alcohol consumption and increased level of blood cholesterol are the main CVD risk factors. Other factors, such as the prevalence of overweight/obesity and diabetes, have increased considerably in recent decades and are indirect causes of CVD. Among CVDs, the acute coronary syndrome (ACS) represents the most common cause of emergency hospital admission. Since the prognosis of ACS is directly associated with timely initiation of revascularization, missed, misdiagnosis or late diagnosis have unfavorable medical implications. Early ACS diagnosis can reduce complications and risk of recurrence, finally decreasing the economic burden posed on the health care system as a whole. To decrease the risk of ACS and related CVDs and to reduce associated costs to healthcare systems, a fast management of patients with chest pain has become crucial and urgent. Despite great efforts, biochemical diagnostic approaches of CVDs remain difficult and controversial medical challenges as cardiac biomarkers should be rapidly released into the blood at the time of ischemia and persistent for a sufficient length of time to allow diagnostics, with tests that should be rapid, easy to perform and relatively inexpensive. Early biomarker assessments have involved testing for the total enzyme activity of aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and creatine kinase (CK), which cardiac troponins being the main accepted biomarkers for diagnosing myocardial injury and acute myocardial infarction (AMI). To allow rapid diagnosis, it is necessary to replace the traditional biochemical assays by cardiac biosensor platforms. Among the numerous of possibilities existing today, electrochemical biosensors are important players as they have many of the required characteristics for point-of-care tests. Electrochemical based cardiac biosensors are highly adapted for monitoring the onset and progress of cardiovascular diseases in a fast and accurate manner, while being cheap and scalable devices. This review outlines the state of the art in the development of cardiac electrochemical sensors for the detection of different cardiac biomarkers ranging from troponin to BNP, N-terminal proBNP, and others.
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Affiliation(s)
- Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520-IEMN, F-59000 Lille, France.
| | - Vladyslav Mishyn
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520-IEMN, F-59000 Lille, France
| | - Iwona Grabowska
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520-IEMN, F-59000 Lille, France.
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Saud Al-Bagmi M, Shahnawaz Khan M, Alhasan Ismael M, Al-Senaidy AM, Ben Bacha A, Mabood Husain F, Alamery SF. An efficient methodology for the purification of date palm peroxidase: Stability comparison with horseradish peroxidase (HRP). Saudi J Biol Sci 2019; 26:301-307. [PMID: 31485169 PMCID: PMC6717102 DOI: 10.1016/j.sjbs.2018.04.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/02/2018] [Accepted: 04/01/2018] [Indexed: 11/28/2022] Open
Abstract
In the present study, Peroxidase from date palm (Phoenix dactylifera) leaves was purified to homogeneity by three-step procedure including aqueous two-phase system, hydrophobic and Ion-exchange chromatography. The enzyme migrated as single band on SDS-PAGE giving molecular weight of 68 ± 3 kDa. The purification factor for purified date palm peroxidase was 68 with high 41% yield. Enzymatic assays together with far-UV circular dichroism (CD), intrinsic and extrinsic fluorescence studies were carried out to monitor the structural stability of date palm and horseradish peroxidase (HRP) against various pH and temperatures. Activity measurements illustrated different pH stability for date palm and HRP. Both peroxidases are more susceptible to extreme acidic conditions as suggested by 4 & 15 nm red shift in date palm and HRP, respectively. Secondary structure analysis using far UV-CD exhibited predominance of α-helical (43.8%) structure. Also, pH induces loss in the secondary structure of date palm peroxidase. Thermal stability analysis revealed date palm peroxidase is more stable in comparison to HRP. In summary, date palm peroxidases could be promising enzymes for various applications where extreme pH and temperature is required.
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Affiliation(s)
- Moneera Saud Al-Bagmi
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohd Shahnawaz Khan
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohamad Alhasan Ismael
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdulrahman M. Al-Senaidy
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Fohad Mabood Husain
- Department of Food and Agriculture science, King Saud University, Riyadh, Saudi Arabia
| | - Salman Freeh Alamery
- Center of Excellence in Biotechnology Research, Dept. Of Biochemistry, College of Science, King Saud University, Saudi Arabia
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Rao P, Rathod V. Valorization of Food and Agricultural Waste: A Step towards Greener Future. CHEM REC 2018; 19:1858-1871. [DOI: 10.1002/tcr.201800094] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Priyanka Rao
- Department of Chemical Engineering Institute of Chemical Technology N.M Parekh MargNear Khalsa College, Matunga Mumbai 400019
| | - Virendra Rathod
- Department of Chemical Engineering Institute of Chemical Technology N.M Parekh MargNear Khalsa College, Matunga Mumbai 400019
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48
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Soluble expression of horseradish peroxidase in Escherichia coli and its facile activation. J Biosci Bioeng 2018; 126:431-435. [DOI: 10.1016/j.jbiosc.2018.04.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/02/2018] [Accepted: 04/04/2018] [Indexed: 12/19/2022]
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Optimization of in vitro refolding conditions of recombinant Lepidium draba peroxidase using design of experiments. Int J Biol Macromol 2018; 118:1369-1376. [DOI: 10.1016/j.ijbiomac.2018.06.122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/17/2018] [Accepted: 06/25/2018] [Indexed: 01/26/2023]
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A facile horseradish peroxidase electrochemical biosensor with surface molecular imprinting based on polyaniline nanotubes. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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