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Wasim M, Shaheen S, Fatima B, Hussain D, Hassan F, Tahreem S, Riaz MM, Yar A, Majeed S, Najam-Ul-Haq M. Non-enzymatic electrochemical detection of sarcosine in serum of prostate cancer patients by CoNiWBO/rGO nanocomposite. Sci Rep 2024; 14:24240. [PMID: 39414878 PMCID: PMC11484907 DOI: 10.1038/s41598-024-74628-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 09/27/2024] [Indexed: 10/18/2024] Open
Abstract
Selective and sensitive sarcosine detection is crucial due to its recent endorsement as a prostate cancer (PCa) biomarker in clinical diagnosis. The reduced graphene oxide-cobalt nickel tungsten boron oxides (CoNiWBO/rGO) nanocomposite is developed as a non-enzymatic electrochemical sensor for sarcosine detection in PCa patients' serum. CoNiWBO/rGO is synthesized by the chemical reduction method via a one-pot reduction method followed by calcination at 500 °C under a nitrogen environment for 2 h and characterized by UV-Vis, XRD, TGA, and SEM. CoNiWBO/rGO is then deposited on a glassy carbon electrode, and sarcosine sensing parameters are optimized, including concentration and pH. This non-enzymatic sensor is employed to directly determine sarcosine in serum samples. Differential pulse voltammetry (DPV) and linear sweep voltammetry (LSV) are employed to monitor the electrochemical behavior where sarcosine binding leads to oxidation. Chronoamperometric studies show the stability of the developed sensor. The results demonstrate a wide linear range from 0.1 to 50 µM and low limits of detection, i.e., 0.04 µM and 0.07 µM using DPV and LSV respectivel. Moreover, the calculated recovery of sarcosine in human serum of prostate cancer patients is 78-96%. The developed electrochemical sensor for sarcosine detection can have potential applications in clinical diagnosis.
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Affiliation(s)
- Muhammad Wasim
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Sana Shaheen
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Batool Fatima
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan.
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Fatima Hassan
- Department of Mechatronics, College of Electrical and Mechanical Engineering, National University of Science and Technology, Islamabad, Pakistan
| | - Shajeea Tahreem
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | | | - Ahmad Yar
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Saadat Majeed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Najam-Ul-Haq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan.
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Liao C, Wu Z, Lin C, Chen X, Zou Y, Zhao W, Li X, Huang G, Xu B, Briganti GE, Qi Y, Wang X, Zeng T, Wuethrich A, Zou H. Nurturing the marriages of urinary liquid biopsies and nano-diagnostics for precision urinalysis of prostate cancer. SMART MEDICINE 2023; 2:e20220020. [PMID: 39188554 PMCID: PMC11236013 DOI: 10.1002/smmd.20220020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/04/2022] [Indexed: 08/28/2024]
Abstract
Prostate cancer remains the second-most common cancer diagnosed in men, despite the increasingly widespread use of serum prostate-specific antigen (PSA) screening. The controversial clinical implications and cost benefits of PSA screening have been highlighted due to its poor specificity, resulting in a high rate of overdiagnosis and underdiagnosis. Thus, the development of novel biomarkers for prostate cancer detection remains an intriguing challenge. Urine is emerging as a source for prostate cancer biomarker discovery. Currently, new urine biomarkers already outperform serum PSA in clinical diagnosis. Meanwhile, the advances in nanotechnology have provided a suite of diagnostic tools to study prostate cancer in more detail, sparking a new era of biomarker discoveries. In this review, we envision that future prostate cancer diagnosis will probably integrate multiplex nano-diagnostic approaches to detect novel urinary biomarkers. However, challenges remain in differentiating indolent from aggressive cancers to better inform treatment decisions, and clinical translation still needs to be overcome.
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Affiliation(s)
- Caizhi Liao
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Zhihao Wu
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Chan Lin
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Xiaofeng Chen
- School of Environmental and Geographical SciencesShanghai Normal UniversityShanghaiChina
- School of ChemistryNorthwestern UniversityChicagoIllinoisUSA
| | - Yaqun Zou
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Wan Zhao
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Xin Li
- Department of UrologySir Run Run Shaw HospitalZhejiang UniversityHangzhouChina
| | | | - Baisheng Xu
- Department of UrologyThe First People's Hospital of XiushuiJiujiangChina
| | | | - Yan Qi
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Xianshu Wang
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
| | - Tao Zeng
- Department of Urologythe Second Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Alain Wuethrich
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology, The University of QueenslandBrisbaneQueenslandAustralia
| | - Hongzhi Zou
- Creative Biosciences (Guangzhou) Co., LtdGuangzhouChina
- The Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
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Magnetic CLEAs of β-Galactosidase from Aspergillus oryzae as a Potential Biocatalyst to Produce Tagatose from Lactose. Catalysts 2023. [DOI: 10.3390/catal13020306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
β-galactosidase is an enzyme capable of hydrolysing lactose, used in various branches of industry, mainly the food industry. As the efficient industrial use of enzymes depends on their reuse, it is necessary to find an effective method for immobilisation, maintaining high activity and stability. The present work proposes cross-linked magnetic cross-linked enzyme aggregates (mCLEAs) to prepare heterogeneous biocatalysts of β-galactosidase. Different concentrations of glutaraldehyde (0.6%, 1.0%, 1.5%), used as a cross-linking agent, were studied. The use of dextran-aldehyde as an alternative cross-linking agent was also evaluated. The mCLEAs presented increased recovered activity directly related to the concentration of glutaraldehyde. Modifications to the protocol to prepare mCLEAs with glutaraldehyde, adding a competitive inhibitor or polymer coating, have not been effective in increasing the recovered activity of the heterogeneous biocatalysts or its thermal stability. The biocatalyst prepared using dextran-aldehyde presented 73.6% recovered activity, aside from substrate affinity equivalent to the free enzyme. The thermal stability at 60 °C was higher for the biocatalyst prepared with glutaraldehyde (mCLEA-GLU-1.5) than the one produced with dextran-aldehyde (mCLEA-DEX), and the opposite happened at 50 °C. Results obtained for lactose hydrolysis, the use of its product to produce a rare sugar (D-tagatose) and operational and storage stability indicate that heterogeneous biocatalysts have adequate characteristics for industrial use.
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Enzyme Encapsulation by Facile Self-Assembly Silica-Modified Magnetic Nanoparticles for Glucose Monitoring in Urine. Pharmaceutics 2022; 14:pharmaceutics14061154. [PMID: 35745727 PMCID: PMC9227432 DOI: 10.3390/pharmaceutics14061154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022] Open
Abstract
Silica nanoparticles hold tremendous potential for the encapsulation of enzymes. However, aqueous alcohol solutions and catalysts are prerequisites for the production of silica nanoparticles, which are too harsh for maintaining the enzyme activity. Herein, a procedure without any organic solvents and catalysts (acidic or alkaline) is developed for the synthesis of silica-encapsulated glucose-oxidase-coated magnetic nanoparticles by a facile self-assembly route, avoiding damage of the enzyme structure in the reaction system. The encapsulated enzyme was characterized by scanning electron microscopy, transmission electron microscopy, energy-dispersive spectrometry, and a vibrating sample magnetometer. Finally, a colorimetric sensing method was developed for the detection of glucose in urine samples based on the encapsulated glucose oxidase and a hydrogen peroxide test strip. The method exhibited a good linear performance in the concentration range of 20~160 μg mL−1 and good recoveries ranging from 94.3 to 118.0%. This work proves that the self-assembly method could be employed to encapsulate glucose oxidase into silica-coated magnetic particles. The developed colorimetric sensing method shows high sensitivity, which will provide a promising tool for the detection of glucose and the monitoring of diabetes.
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Hojnik Podrepšek G, Knez Ž, Leitgeb M. The Synthesis of (Magnetic) Crosslinked Enzyme Aggregates With Laccase, Cellulase, β-Galactosidase and Transglutaminase. Front Bioeng Biotechnol 2022; 10:813919. [PMID: 35309987 PMCID: PMC8927696 DOI: 10.3389/fbioe.2022.813919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/24/2022] [Indexed: 12/16/2022] Open
Abstract
Immobilized enzymes have important aspects due to the fact that they possess higher stability, have the possibility to be easily removed from the reaction mixture, and are much easier to use when compared to free enzymes. In this research, the enzymes laccase, cellulase, β-galactosidase (β-gal), and transglutaminase (TGM) were immobilized by two different methods: crosslinked enzyme aggregates (CLEAs) and magnetic crosslinked enzyme aggregates (mCLEAs). The processes for CLEAs and mCLEAs preparation with different enzymes have been optimized, where the aim was to achieve the highest possible relative activity of the immobilized enzyme. The optimal conditions of the synthesis of CLEAs in mCLEAs are described, thus emphasizing the difference between the two types of immobilization based on different enzymes. This comparative study, which represents the synthesis of crosslinked enzyme aggregates using different enzymes, has not been performed so far. Moreover, the obtained activity of CLEAs and mCLEAs is presented, which is important for further use in different biocatalytic processes. Specifically, of a higher importance is the selection of enzymes involved in immobilization, as they belong to the three different most applicable enzymes (oxidoreductases, hydrolases, and transferases). The study confirmed that the resulting activity of the immobilized enzyme and the optimization of enzyme immobilization depended on the type of the enzyme. Moreover, the prepared CLEAs and mCLEAs were exposed to the supercritical carbon dioxide (scCO2) at different pressures to determine the effect of scCO2 on enzyme activity in immobilized form. Additionally, to demonstrate the reuse and stability of the immobilized enzyme, the stability and reusability tests of CLEAs and mCLEAs were performed. The catalytic performance of immobilized enzyme was tested, where the catalytic efficiency and long-term operational stability of mCLEAs were obviously superior to those of CLEAs. However, the higher activity observed for CLEAs compared to mCLEAs suggests a significant effect of magnetic nanoparticles in the stabilization of an enzyme crosslinked aggregate structure.
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Affiliation(s)
- Gordana Hojnik Podrepšek
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Željko Knez
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Maja Leitgeb
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Maribor, Slovenia
- *Correspondence: Maja Leitgeb,
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Hu Q, Chen G, Wang L, Cui X, Chang C, Fu Q. Nanoreactor of sarcosine oxidase-embedded ZIFs activates fluorescent response for diagnosis of prostate cancer. NEW J CHEM 2022. [DOI: 10.1039/d1nj06169k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorometric method was developed to detect sarcosine based on SOX@ZIF-8, which possessed great linearity, specificity, and easy operation.
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Affiliation(s)
- Qianqian Hu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
- Department of Pharmacy, The Second Affiliated Hospital of Xi’an Medical University, Xi’an 710038, China
| | - Guoning Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Lu Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Xia Cui
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Chun Chang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Qiang Fu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China
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