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Roy A, Chen YP, Qiu JT, Maikap S. Sarcosine Prostate Cancer Biomarker Detection by Controlling Oxygen in NiO x Membrane on Vertical Silicon Nanowires in Electrolyte-Insulator-Nanowire Structure. Anal Chem 2020; 92:8064-8071. [PMID: 32401013 DOI: 10.1021/acs.analchem.9b04745] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sarcosine prostate cancer biomarker with the low concentration of 1 pM has been detected by controlling oxygen from 1 to 15 sccm in a NiOx membrane on chemically etched vertical Si nanowires (SiNWs) in an electrolyte-insulator-nanowire (EIN) structure. The vertical Si nanowires with approximately 17 μm length and polycrystalline NiOx membrane are observed by both field-emission scanning electron microscope (FE-SEM) and high-resolution transmission electron microscope (HRTEM) images, respectively. The optimized NiOx membrane with oxygen content of 4 sccm on planar SiOx/Si substrate shows good pH sensitivity of approximately 50 mV/pH, low hysteresis of 3.4 mV, and low drift rate of 2.4 mV/h as compared to other oxygen content membranes of 1, 10, and 15 sccm. Further, uric acid with the concentration of 0.1 μM is detected directly by using the optimized NiOx membrane. In addition, repeatable H2O2 sensing with the low concentration of 10 pM as well as prostate cancer biomarker is detected, which is owing to the reduction-oxidation phenomena of the NiOx membranes. The sensing mechanism is owing to the Ni2+/Ni3+ oxidation states of the NiOx membrane, which is confirmed by X-ray photoelectron spectroscopy. The optimized NiOx membrane on vertical Si nanowire in the EIN structure shows a good drift rate of 3.84 mV/h and sarcosine detection with improvement of approximately 1000 times as compared to the planar Si in an electrolyte-insulator-semiconductor (EIS) structure. This sensor paves a way to detect early-stage diagnosis of prostate cancer rapidly in the near future.
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Affiliation(s)
- Anisha Roy
- Thin Film Nano Technology Laboratory, Department of Electronic Engineering, Chang Gung University, 259 Wen-Hwa First Road, Kwei-Shan, Tao-Yuan, 33302, Taiwan
| | - Yi-Pin Chen
- Department of Obstetrics and Gynecology, Keelung Chang Gung Memorial Hospital, No. 222, Maijin Road, Anle, Keelung, 204, Taiwan
| | - Jiantai Timothy Qiu
- Department of Obstetrics and Gynecology, College of Medicine, Taipei Medical University, No. 250, Wuxing Street, Xinyi, Taipei, 110, Taiwan.,Department of Obstetrics and Gynecology, Taipei Medical University Hospital, No. 252, Wuxing Street, Xinyi, Taipei, 110, Taiwan
| | - Siddheswar Maikap
- Thin Film Nano Technology Laboratory, Department of Electronic Engineering, Chang Gung University, 259 Wen-Hwa First Road, Kwei-Shan, Tao-Yuan, 33302, Taiwan.,Department of Obstetrics and Gynecology, Keelung Chang Gung Memorial Hospital, No. 222, Maijin Road, Anle, Keelung, 204, Taiwan.,Division of Gynecology-Oncology, Department of Obstetrics-Gynecology, Chang Gung Memorial Hospital, No. 5, Fuxing Street, Guishan, Taoyuan, 333, Taiwan
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Fully automated process for histamine detection based on magnetic separation and fluorescence detection. Talanta 2020; 212:120789. [PMID: 32113552 DOI: 10.1016/j.talanta.2020.120789] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/22/2020] [Accepted: 01/27/2020] [Indexed: 12/16/2022]
Abstract
To ensure food safety and to prevent unnecessary foodborne complications this study reports fast, fully automated process for histamine determination. This method is based on magnetic separation of histamine with magnetic particles and quantification by the fluorescence intensity change of MSA modified CdSe Quantum dots. Formation of Fe2O3 particles was followed by adsorption of TiO2 on their surface. Magnetism of developed probe enabled rapid histamine isolation prior to its fluorescence detection. Quantum dots (QDs) of approx. 3 nm were prepared via facile UV irradiation. The fluorescence intensity of CdSe QDs was enhanced upon mixing with magnetically separated histamine, in concentration-dependent manner, with a detection limit of 1.6 μM. The linear calibration curve ranged between 0.07 and 4.5 mM histamine with a low LOD and LOQ of 1.6 μM and 6 μM. The detection efficiency of the method was confirmed by ion exchange chromatography. Moreover, the specificity of the sensor was evaluated and no cross-reactivity from nontarget analytes was observed. This method was successfully applied for the direct analysis of histamine in white wine providing detection limit much lower than the histamine maximum levels established by EU regulation in food samples. The recovery rate was excellent, ranging from 84 to 100% with an RSD of less than 4.0%. The main advantage of the proposed method is full automation of the analytical procedure that reduces the time and cost of the analysis, solvent consumption and sample manipulation, enabling routine analysis of large numbers of samples for histamine and highly accurate and precise results.
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Bio-Catalysis and Biomedical Perspectives of Magnetic Nanoparticles as Versatile Carriers. MAGNETOCHEMISTRY 2019. [DOI: 10.3390/magnetochemistry5030042] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In recent years, magnetic nanoparticles (MNPs) have gained increasing attention as versatile carriers because of their unique magnetic properties, biocatalytic functionalities, and capabilities to work at the cellular and molecular level of biological interactions. Moreover, owing to their exceptional functional properties, such as large surface area, large surface-to-volume ratio, and mobility and high mass transference, MNPs have been employed in several applications in different sectors such as supporting matrices for enzymes immobilization and controlled release of drugs in biomedicine. Unlike non-magnetic carriers, MNPs can be easily separated and recovered using an external magnetic field. In addition to their biocompatible microenvironment, the application of MNPs represents a remarkable green chemistry approach. Herein, we focused on state-of-the-art two majorly studied perspectives of MNPs as versatile carriers for (1) matrices for enzymes immobilization, and (2) matrices for controlled drug delivery. Specifically, from the applied perspectives of magnetic nanoparticles, a series of different applications with suitable examples are discussed in detail. The second half is focused on different metal-based magnetic nanoparticles and their exploitation for biomedical purposes.
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Jeun M, Park S, Kim Y, Choi J, Song SH, Jeong IG, Kim CS, Lee KH. Self-Normalized Detection of ANXA3 from Untreated Urine of Prostate Cancer Patients without Digital Rectal Examination. Adv Healthc Mater 2017; 6. [PMID: 28703915 DOI: 10.1002/adhm.201700449] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 05/22/2017] [Indexed: 12/19/2022]
Abstract
A noninvasive quantitative assay that is capable of identifying prostate cancer biomarkers in untreated urine is an attractive diagnosis tool, but this method is subject to various obstacles. Difficulties presented by untreated urine include varying salt concentrations, and pH levels that may be different even though they are from the same patient. Untreated urine also presents interference from other biomolecules and possesses a fewer number of cancer biomarkers than can be found in serum. As a result, urine preconditioning processes and digital rectal examination (DRE) to increase biomarker secretion are mandatory in current urine assays. To address these challenges, an ion-responsive urine sensor (IRUS) that measures differential electrical signals is proposed as a self-normalized detection method. The proposed IRUS is based on a FET biosensor with a disposable sensing gate and has the capability to detect the prostate cancer antigen ANXA3 in untreated patient urine. The IRUS can detect ANXA3 at <1 fg mL-1 with high reliability. In addition, it is found that ANXA3 levels in urine show clinically significant correlation with real tumor volumes. This paper provides a guideline in developing a clinically ready accurate noninvasive platform, which is capable of predicting prostate cancer using untreated urine without DRE.
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Affiliation(s)
- Minhong Jeun
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
| | - Sungwook Park
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); 217 Gajeong-ro Yuseong-gu Daejeon 34113 Republic of Korea
| | - Yongdeok Kim
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
| | - Jaewon Choi
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); 217 Gajeong-ro Yuseong-gu Daejeon 34113 Republic of Korea
| | - Sang Hoon Song
- Department of Urology; Asan Medical Center; University of Ulsan College of Medicine; 88 Olympic-ro 43-gil Songpa-gu Seoul 05505 Republic of Korea
| | - In Gab Jeong
- Department of Urology; Asan Medical Center; University of Ulsan College of Medicine; 88 Olympic-ro 43-gil Songpa-gu Seoul 05505 Republic of Korea
| | - Choung-Soo Kim
- Department of Urology; Asan Medical Center; University of Ulsan College of Medicine; 88 Olympic-ro 43-gil Songpa-gu Seoul 05505 Republic of Korea
| | - Kwan Hyi Lee
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology (KIST); 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); 217 Gajeong-ro Yuseong-gu Daejeon 34113 Republic of Korea
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5
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Kudr J, Haddad Y, Richtera L, Heger Z, Cernak M, Adam V, Zitka O. Magnetic Nanoparticles: From Design and Synthesis to Real World Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E243. [PMID: 28850089 PMCID: PMC5618354 DOI: 10.3390/nano7090243] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 12/19/2022]
Abstract
The increasing number of scientific publications focusing on magnetic materials indicates growing interest in the broader scientific community. Substantial progress was made in the synthesis of magnetic materials of desired size, morphology, chemical composition, and surface chemistry. Physical and chemical stability of magnetic materials is acquired by the coating. Moreover, surface layers of polymers, silica, biomolecules, etc. can be designed to obtain affinity to target molecules. The combination of the ability to respond to the external magnetic field and the rich possibilities of coatings makes magnetic materials universal tool for magnetic separations of small molecules, biomolecules and cells. In the biomedical field, magnetic particles and magnetic composites are utilized as the drug carriers, as contrast agents for magnetic resonance imaging (MRI), and in magnetic hyperthermia. However, the multifunctional magnetic particles enabling the diagnosis and therapy at the same time are emerging. The presented review article summarizes the findings regarding the design and synthesis of magnetic materials focused on biomedical applications. We highlight the utilization of magnetic materials in separation/preconcentration of various molecules and cells, and their use in diagnosis and therapy.
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Affiliation(s)
- Jiri Kudr
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Mirko Cernak
- CEPLANT R&D Centre for Low-Cost Plasma and Nanotechnology Surface Modifications, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
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Construction of an Acetylcholinesterase Sensor Based on Synthesized Paramagnetic Nanoparticles, a Simple Tool for Neurotoxic Compounds Assay. SENSORS 2017; 17:s17040676. [PMID: 28338634 PMCID: PMC5419789 DOI: 10.3390/s17040676] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/20/2017] [Accepted: 03/22/2017] [Indexed: 12/27/2022]
Abstract
Magnetic particles (MPs) have been widely used in biological applications in recent years as a carrier for various molecules. Their big advantage is in repeated use of immobilized molecules including enzymes. Acetylcholinesterase (AChE) is an enzyme playing crucial role in neurotransmission and the enzyme is targeted by various molecules like Alzheimer's drugs, pesticides and warfare agents. In this work, an electrochemical biosensor having AChE immobilized onto MPs and stabilized through glutaraldehyde (GA) molecule was proposed for assay of the neurotoxic compounds. The prepared nanoparticles were modified by pure AChE and they were used for the measurement anti-Alzheimer's drug galantamine and carbamate pesticide carbofuran with limit of detection 1.5 µM and 20 nM, respectively. All measurements were carried out using screen-printed sensor with carbon working, silver reference, and carbon auxiliary electrode. Standard Ellman's assay was used for validation measurement of both inhibitors. Part of this work was the elimination of reversible inhibitors represented by galantamine from the active site of AChE. For this purpose, we used a lower pH to get the original activity of AChE after inhibition by galantamine. We also observed decarbamylation of the AChE-carbofuran adduct. Influence of organic solvents to AChE as well as repeatability of measurement with MPs with AChE was also established.
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Zhao Y, Li Q, Hu X, Lo Y. Microfluidic cytometers with integrated on-chip optical systems for red blood cell and platelet counting. BIOMICROFLUIDICS 2016; 10:064119. [PMID: 28058085 PMCID: PMC5188361 DOI: 10.1063/1.4972105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/27/2016] [Indexed: 05/07/2023]
Abstract
A microfluidic cytometer with integrated on-chip optical systems was designed for red blood cell (RBC) and platelet (PLT) counting. The design, fabrication, and characterization of the microfluidic cytometer with on-chip optical signal detection were described. With process using only a single mask, the device that integrates optical fibers and on-chip microlens with microfluidic channels on a polydimethylsiloxane layer by standard soft photolithography. This compact structure increased the sensitivity of the device and eliminated time-consuming free-space optical alignments. The microfluidic cytometer was used to count red blood cells and platelets. Forward scatter and extinction were collected simultaneously for each cell. Experimental results indicated that the microfluidic cytometer exhibited comparable performance with a conventional cytometer and demonstrated superior capacity to detect on-chip optical signals in a highly compact, simple, truly portable, and low-cost format that is well suitable for point-of-care clinical diagnostics.
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Affiliation(s)
- Yingying Zhao
- School of Life Science, Key Laboratory of Convergence Medical Engineering System and Healthcare Technology, Beijing Institute of Technology , Beijing 100081, China
| | - Qin Li
- School of Life Science, Key Laboratory of Convergence Medical Engineering System and Healthcare Technology, Beijing Institute of Technology , Beijing 100081, China
| | - Xiaoming Hu
- School of Life Science, Key Laboratory of Convergence Medical Engineering System and Healthcare Technology, Beijing Institute of Technology , Beijing 100081, China
| | - Yuhwa Lo
- Department of Electrical and Computer Engineering, University of California San Diego , California 92093-0407, USA
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8
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Perez-Gonzalez VH, Gallo-Villanueva RC, Camacho-Leon S, Gomez-Quiñones JI, Rodriguez-Delgado JM, Martinez-Chapa SO. Emerging microfluidic devices for cancer cells/biomarkers manipulation and detection. IET Nanobiotechnol 2016; 10:263-275. [PMID: 27676373 PMCID: PMC8676477 DOI: 10.1049/iet-nbt.2015.0060] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 12/09/2015] [Accepted: 12/15/2015] [Indexed: 01/04/2023] Open
Abstract
Circulating tumour cells (CTCs) are active participants in the metastasis process and account for ∼90% of all cancer deaths. As CTCs are admixed with a very large amount of erythrocytes, leukocytes, and platelets in blood, CTCs are very rare, making their isolation, capture, and detection a major technological challenge. Microfluidic technologies have opened-up new opportunities for the screening of blood samples and the detection of CTCs or other important cancer biomarker-proteins. In this study, the authors have reviewed the most recent developments in microfluidic devices for cells/biomarkers manipulation and detection, focusing their attention on immunomagnetic-affinity-based devices, dielectrophoresis-based devices, surface-plasmon-resonance microfluidic sensors, and quantum-dots-based sensors.
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Affiliation(s)
- Victor Hugo Perez-Gonzalez
- School of Engineering and Sciences, Tecnologico de Monterrey, Avenue Eugenio Garza Sada 2501 Sur, Monterrey, Mexico
| | | | - Sergio Camacho-Leon
- School of Engineering and Sciences, Tecnologico de Monterrey, Avenue Eugenio Garza Sada 2501 Sur, Monterrey, Mexico
| | - Jose Isabel Gomez-Quiñones
- School of Biotechnology and Health Sciences, Tecnologico de Monterrey, Avenue Eugenio Garza Sada 2501 Sur, Monterrey, Mexico
| | | | - Sergio Omar Martinez-Chapa
- School of Engineering and Sciences, Tecnologico de Monterrey, Avenue Eugenio Garza Sada 2501 Sur, Monterrey, Mexico.
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9
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Cernei N, Lackova Z, Guran R, Hynek D, Skladanka J, Horky P, Zitka O, Adam V. Determination of Histamine in Silages Using Nanomaghemite Core (γ-Fe₂O₃)-Titanium Dioxide Shell Nanoparticles Off-Line Coupled with Ion Exchange Chromatography. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13090904. [PMID: 27626434 PMCID: PMC5036737 DOI: 10.3390/ijerph13090904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/19/2016] [Accepted: 09/05/2016] [Indexed: 12/26/2022]
Abstract
The presence of biogenic amines is a hallmark of degraded food and its products. Herein, we focused on the utilization of magnetic nanoparticles off-line coupled with ion exchange chromatography with post-column ninhydrin derivatization and Vis detection for histamine (Him) separation and detection. Primarily, we described the synthesis of magnetic nanoparticles with nanomaghemite core (γ-Fe2O3) functionalized with titanium dioxide and, then, applied these particles to specific isolation of Him. To obtain further insight into interactions between paramagnetic particles’ (PMP) surface and Him, a scanning electron microscope was employed. It was shown that binding of histamine causes an increase of relative current response of deprotonated PMPs, which confirmed formation of Him-PMPs clusters. The recovery of the isolation showed that titanium dioxide-based particles were able to bind and preconcentrate Him with recovery exceeding 90%. Finally, we successfully carried out the analyses of real samples obtained from silage. We can conclude that our modified particles are suitable for Him isolation, and thus may serve as the first isolation step of Him from biological samples, as it is demonstrated on alfalfa seed variety Tereza silage.
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Affiliation(s)
- Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Zuzana Lackova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Roman Guran
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - David Hynek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
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10
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Michalek P, Dostalova S, Buchtelova H, Cernei N, Krejcova L, Hynek D, Milosavljevic V, Jimenez AMJ, Kopel P, Heger Z, Adam V. A two-step protocol for isolation of influenza A (H7N7) virions and their RNA for PCR diagnostics based on modified paramagnetic particles. Electrophoresis 2016; 37:2025-35. [PMID: 27130152 DOI: 10.1002/elps.201600044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 04/11/2016] [Accepted: 04/11/2016] [Indexed: 01/18/2023]
Abstract
Annual epidemics of influenza cause death of hundreds of thousands people and they also have a significant economic impact. Hence, a need for fast and cheap influenza diagnostic method is arising. The conventional methods for an isolation of the viruses are time-consuming and require expensive instrumentation as well as trained personnel. In this study, we modified the surface of nanomaghemite (γ-Fe2 O3 ) paramagnetic core with tetraethyl orthosilicate and (3-aminopropyl)triethoxysilane and the resulting particles were utilized for the isolation of H7N7 influenza virions. Consequently, we designed γ-Fe2 O3 paramagnetic core modified with calcium tripolyphosphate which was employed for the isolation of viral nucleic acid after virion's lysis. Both of these procedures can be performed rapidly in less than 10 min and, in combination with the RT-PCR, the whole influenza detection can be shortened to few hours. Moreover, the whole protocol could be easily automated and/or miniaturized, and thus can serve as a basis for use in a lab-on-a-chip device. We assume that magnetic isolation is an exceptional procedure which can significantly accelerate the diagnostic possibilities of a broad spectrum of diseases.
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Affiliation(s)
- Petr Michalek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Simona Dostalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Hana Buchtelova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Ludmila Krejcova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - David Hynek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Ana Maria Jimenez Jimenez
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
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11
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Vesely R, Jelinkova P, Hegerova D, Cernei N, Kopel P, Moulick A, Richtera L, Heger Z, Adam V, Zitka O. Nanoparticles Suitable for BCAA Isolation Can Serve for Use in Magnetic Lipoplex-Based Delivery System for L, I, V, or R-rich Antimicrobial Peptides. MATERIALS 2016; 9:ma9040260. [PMID: 28773383 PMCID: PMC5502924 DOI: 10.3390/ma9040260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/14/2016] [Accepted: 03/24/2016] [Indexed: 11/16/2022]
Abstract
This paper investigates the synthesis of paramagnetic nanoparticles, which are able to bind branched chain amino acids (BCAAs)—leucine, valine, and isoleucine and, thus, serve as a tool for their isolation. Further, by this, we present an approach for encapsulation of nanoparticles into a liposome cavity resulting in a delivery system. Analyses of valine and leucine in entire complex show that 31.3% and 32.6% recoveries are reached for those amino acids. Evaluation of results shows that the success rate of delivery in Escherichia coli (E. coli) is higher in the case of BCAAs on nanoparticles entrapped in liposomes (28.7% and 34.7% for valine and leucine, respectively) when compared to nanoparticles with no liposomal envelope (18.3% and 13.7% for valine and leucine, respectively). The nanoparticles with no liposomal envelope exhibit the negative zeta potential (−9.1 ± 0.3 mV); however, their encapsulation results in a shift into positive values (range of 28.9 ± 0.4 to 33.1 ± 0.5 mV). Thus, electrostatic interactions with negatively-charged cell membranes (approx. −50 mV in the case of E. coli) leads to a better uptake of cargo. Our delivery system was finally tested with the leucine-rich antimicrobial peptide (FALALKALKKALKKLKKALKKAL) and it is shown that hemocompatibility (7.5%) and antimicrobial activity of the entire complex against E. coli, Staphylococcus aureus (S. aureus), and methicilin-resistant S. aureus (MRSA) is comparable or better than conventional penicillin antibiotics.
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Affiliation(s)
- Radek Vesely
- Department of Traumatology at the Medical Faculty, Masaryk University and Trauma Hospital of Brno, Ponavka 6, Brno CZ-662 50, Czech Republic.
| | - Pavlina Jelinkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Dagmar Hegerova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic.
- Central European Institute of Technology, Brno, University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic.
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12
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Influence of Long-Distance Bicycle Riding on Serum/Urinary Biomarkers of Prostate Cancer. Int J Mol Sci 2016; 17:377. [PMID: 26999116 PMCID: PMC4813236 DOI: 10.3390/ijms17030377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 02/17/2016] [Accepted: 03/03/2016] [Indexed: 12/24/2022] Open
Abstract
Herein, we present a study focused on the determination of the influence of long-distance (53 km) bicycle riding on levels of chosen biochemical urinary and serum prostate cancer (PCa) biomarkers total prostate-specific antigen (tPSA), free PSA (fPSA) and sarcosine. Fourteen healthy participants with no evidence of prostate diseases, in the age range from 49-57 years with a median of 52 years, underwent physical exercise (mean race time of 150 ± 20 min, elevation increase of 472 m) and pre- and post-ride blood/urine sampling. It was found that bicycle riding resulted in elevated serum uric acid (p = 0.001, median 271.76 vs. 308.44 µmol/L pre- and post-ride, respectively), lactate (p = 0.01, median 2.98 vs. 4.8 mmol/L) and C-reactive protein (p = 0.01, 0.0-0.01 mg/L). It is noteworthy that our work supports the studies demonstrating an increased PSA after mechanical manipulation of the prostate. The subjects exhibited either significantly higher post-ride tPSA (p = 0.002, median 0.69 vs. 1.1 ng/mL pre- and post-ride, respectively) and fPSA (p = 0.028, median 0.25 vs. 0.35 ng/mL). Contrary to that, sarcosine levels were not significantly affected by physical exercise (p = 0.20, median 1.64 vs. 1.92 µmol/mL for serum sarcosine, and p = 0.15, median 0.02 µmol/mmol of creatinine vs. 0.01 µmol/mmol of creatinine for urinary sarcosine). Taken together, our pilot study provides the first evidence that the potential biomarker of PCa-sarcosine does not have a drawback by means of a bicycle riding-induced false positivity, as was shown in the case of PSA.
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13
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Kang BJ, Jeun M, Jang GH, Song SH, Jeong IG, Kim CS, Searson PC, Lee KH. Diagnosis of prostate cancer via nanotechnological approach. Int J Nanomedicine 2015; 10:6555-69. [PMID: 26527873 PMCID: PMC4621223 DOI: 10.2147/ijn.s91908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Prostate cancer is one of the leading causes of cancer-related deaths among the Caucasian adult males in Europe and the USA. Currently available diagnostic strategies for patients with prostate cancer are invasive and unpleasant and have poor accuracy. Many patients have been overly or underly treated resulting in a controversy regarding the reliability of current conventional diagnostic approaches. This review discusses the state-of-the-art research in the development of novel noninvasive prostate cancer diagnostics using nanotechnology coupled with suggested diagnostic strategies for their clinical implication.
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Affiliation(s)
- Benedict J Kang
- KIST Biomedical Research Institute, Korea University of Science and Technology (UST), Seoul, Republic of Korea ; Department of Biomedical Engineering, Korea University of Science and Technology (UST), Seoul, Republic of Korea
| | - Minhong Jeun
- KIST Biomedical Research Institute, Korea University of Science and Technology (UST), Seoul, Republic of Korea ; Department of Biomedical Engineering, Korea University of Science and Technology (UST), Seoul, Republic of Korea
| | - Gun Hyuk Jang
- KIST Biomedical Research Institute, Korea University of Science and Technology (UST), Seoul, Republic of Korea ; Department of Biomedical Engineering, Korea University of Science and Technology (UST), Seoul, Republic of Korea
| | - Sang Hoon Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - In Gab Jeong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Choung-Soo Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Peter C Searson
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD, USA
| | - Kwan Hyi Lee
- KIST Biomedical Research Institute, Korea University of Science and Technology (UST), Seoul, Republic of Korea ; Department of Biomedical Engineering, Korea University of Science and Technology (UST), Seoul, Republic of Korea
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14
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Heger Z, Zitka J, Cernei N, Krizkova S, Sztalmachova M, Kopel P, Masarik M, Hodek P, Zitka O, Adam V, Kizek R. 3D-printed biosensor with poly(dimethylsiloxane) reservoir for magnetic separation and quantum dots-based immunolabeling of metallothionein. Electrophoresis 2015; 36:1256-64. [DOI: 10.1002/elps.201400559] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 02/04/2015] [Accepted: 02/08/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Zbynek Heger
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Jan Zitka
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Sona Krizkova
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Marketa Sztalmachova
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
- Department of Pathological Physiology, Faculty of Medicine; Masaryk University; Brno Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Michal Masarik
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
- Department of Pathological Physiology, Faculty of Medicine; Masaryk University; Brno Czech Republic
| | - Petr Hodek
- Department of Biochemistry, Faculty of Science; Charles University in Prague; Prague Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Rene Kizek
- Department of Chemistry and Biochemistry; Mendel University; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
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15
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Heger Z, Cernei N, Krizkova S, Masarik M, Kopel P, Hodek P, Zitka O, Adam V, Kizek R. Paramagnetic nanoparticles as a platform for FRET-based sarcosine picomolar detection. Sci Rep 2015; 5:8868. [PMID: 25746688 PMCID: PMC4352859 DOI: 10.1038/srep08868] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/06/2015] [Indexed: 01/22/2023] Open
Abstract
Herein, we describe an ultrasensitive specific biosensing system for detection of sarcosine as a potential biomarker of prostate carcinoma based on Förster resonance energy transfer (FRET). The FRET biosensor employs anti-sarcosine antibodies immobilized on paramagnetic nanoparticles surface for specific antigen binding. Successful binding of sarcosine leads to assembly of a sandwich construct composed of anti-sarcosine antibodies keeping the Förster distance (Ro) of FRET pair in required proximity. The detection is based on spectral overlap between gold-functionalized green fluorescent protein and antibodies@quantum dots bioconjugate (λex 400 nm). The saturation curve of sarcosine based on FRET efficiency (F₆₀₄/F₅₁₀ ratio) was tested within linear dynamic range from 5 to 50 nM with detection limit down to 50 pM. Assembled biosensor was then successfully employed for sarcosine quantification in prostatic cell lines (PC3, 22Rv1, PNT1A), and urinary samples of prostate adenocarcinoma patients.
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Affiliation(s)
- Zbynek Heger
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Sona Krizkova
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Michal Masarik
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-612 00 Brno, Czech Republic, European Union
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Petr Hodek
- Department of Biochemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, CZ-128 40 Prague 2, Czech Republic, European Union
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00, Czech Republic, European Union
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
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16
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Smerkova K, Vlcnovska M, Dostalova S, Milosavljevic V, Kopel P, Vaculovic T, Krizkova S, Vaculovicova M, Adam V, Kizek R. ELISA-like Analysis of Cisplatinated DNA Using Magnetic Separation. Nanobiomedicine (Rij) 2015; 2:10. [PMID: 29942374 PMCID: PMC5997378 DOI: 10.5772/61699] [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: 12/16/2014] [Accepted: 09/21/2015] [Indexed: 11/12/2022] Open
Abstract
Cisplatin belongs to the most widely used cytostatic drugs. The determination of the presence of the DNA-cisplatin adducts may not only signal the guanine-rich regions but also monitor the interaction reaction between DNA and the drug in terms of speed of interaction. In this work, the combined advantages of magnetic particles-based isolation/purification with fluorescent properties of quantum dots (QDs) and antibodies targeted on specific recognition of DNA-cisplatin adducts are demonstrated. The formation of a complex between magnetic particles with surface modified by anti-dsDNA antibody, cisplatin-modified DNA and QDs labelled anti-cisplatin-modified DNA antibody was suggested and optimized.
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Affiliation(s)
- Kristyna Smerkova
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Marcela Vlcnovska
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic
| | - Simona Dostalova
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Vedran Milosavljevic
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Tomas Vaculovic
- Department of Chemistry, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Sona Krizkova
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Laboratory of Metallomics and Nanotechnology, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
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17
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Heger Z, Kominkova M, Cernei N, Krejcova L, Kopel P, Zitka O, Adam V, Kizek R. Fluorescence resonance energy transfer between green fluorescent protein and doxorubicin enabled by DNA nanotechnology. Electrophoresis 2014; 35:3290-301. [DOI: 10.1002/elps.201400166] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 05/23/2014] [Accepted: 08/11/2014] [Indexed: 01/15/2023]
Affiliation(s)
- Zbynek Heger
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Marketa Kominkova
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Ludmila Krejcova
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
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18
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Heger Z, Cernei N, Blazkova I, Kopel P, Masarik M, Zitka O, Adam V, Kizek R. γ-Fe2O3 Nanoparticles Covered with Glutathione-Modified Quantum Dots as a Fluorescent Nanotransporter. Chromatographia 2014. [DOI: 10.1007/s10337-014-2732-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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19
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Isolation of Biogenic Amines Using Paramagnetic Microparticles Off-Line Coupled with Ion Exchange Liquid Chromatography. Chromatographia 2014. [DOI: 10.1007/s10337-014-2731-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Heger Z, Cernei N, Gumulec J, Masarik M, Eckschlager T, Hrabec R, Zitka O, Adam V, Kizek R. Determination of common urine substances as an assay for improving prostate carcinoma diagnostics. Oncol Rep 2014; 31:1846-54. [PMID: 24573566 DOI: 10.3892/or.2014.3054] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 12/02/2013] [Indexed: 11/05/2022] Open
Abstract
Recently, interest in the identification of non-invasive markers for prostate carcinoma detectable in the urine of patients has increased. In this study, we monitored the abundance of potential non-invasive markers of prostate carcinoma such as amino acid sarcosine, involved in the metabolism of amino acids and methylation processes, ongoing during the progression of prostate carcinoma. in addition, other potential prostate tumor markers were studied. The most significant markers, prostate-specific antigen (PSA) and free PSA (fPSA), already used in clinical diagnosis, were analyzed using an immunoenzymometric assay. Whole amino acid profiles were also determined to evaluate the status of amino acids in patient urine samples and to elucidate the possibility of their utilization for prostate carcinoma diagnosis. To obtain the maximum amount of information, the biochemical parameters were determined using various spectrophotometric methods. All results were subjected to statistical processing for revealing different correlations between the studied parameters. We observed alterations in most of the analyzed substances. Based on the results obtained, we concluded that the specificity of prostate carcinoma diagnosis could be improved by determination of common urine metabolites, since we compiled a set of tests, including the analysis of sarcosine, proline, PSA and uric acid in the urine. These metabolites were not observed in the urine obtained from healthy subjects, while their levels were elevated in all patients suffering from prostate carcinoma.
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Affiliation(s)
- Zbynek Heger
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, CZ-613 00 Brno, Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, CZ-613 00 Brno, Czech Republic
| | - Jaromir Gumulec
- Central European Institute of Technology, Brno University of Technology, CZ-616 00 Brno, Czech Republic
| | - Michal Masarik
- Central European Institute of Technology, Brno University of Technology, CZ-616 00 Brno, Czech Republic
| | - Tomas Eckschlager
- Department of Paediatric Haematology and Oncology, 2nd Faculty of Medicine, Charles University, and University Hospital Motol, CZ‑15006 Prague 5, Czech Republic
| | - Roman Hrabec
- Department of Urology, St. Anne's University Hospital, CZ-656 91 Brno, Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, CZ-613 00 Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, CZ-613 00 Brno, Czech Republic
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, CZ-613 00 Brno, Czech Republic
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21
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Zitka O, Heger Z, Kominkova M, Skalickova S, Krizkova S, Adam V, Kizek R. Preconcentration based on paramagnetic microparticles for the separation of sarcosine using hydrophilic interaction liquid chromatography coupled with coulometric detection. J Sep Sci 2014; 37:465-575. [DOI: 10.1002/jssc.201301188] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/16/2013] [Accepted: 12/18/2013] [Indexed: 12/26/2022]
Affiliation(s)
- Ondrej Zitka
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Marketa Kominkova
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Sylvie Skalickova
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
| | - Sona Krizkova
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
| | - Rene Kizek
- Department of Chemistry and Biochemistry; Faculty of Agronomy; Mendel University in Brno; Brno Czech Republic
- Central European Institute of Technology; Brno University of Technology; Brno Czech Republic
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