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Masoumi M, Manavi MA, Mohammad Jafari R, Mirzaei A, Hedayatyanfard K, Beigmohammadi MT, Dehpour AR. Cannabidiol Anticonvulsant Effects Against Lithium-Pilocarpine-Induced Status Epilepticus in Male Rats Are Mediated by Neuroinflammation Modulation and Cannabinoids 1 (CB1), But Not CB2 and GABA A Receptors. Cannabis Cannabinoid Res 2024; 9:797-808. [PMID: 37976207 DOI: 10.1089/can.2023.0067] [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] [Indexed: 11/19/2023] Open
Abstract
Background: Status epilepticus (SE) is a series of seizures that can lead to serious neurological damages. Cannabidiol (CBD) is extracted from the cannabis plant, which has been approved as an antiseizure medication. This study aimed to determine the efficacy of various doses of CBD on lithium-pilocarpine-induced SE in rats and possible involvement of multiple pharmacological pathways. We hypothesized that cannabinoid receptors type 1 (CB1) and CB2, as well as GABAA receptors, might have important roles in the anticonvulsant effects of CBD against SE by its anti-inflammatory effects. Methods: SE was induced by intraperitoneal (i.p.) injection of lithium (127 mg/kg, i.p.) and pilocarpine (60 mg/kg, i.p., 20 h after lithium). Forty-two male rats were divided into seven groups (including control and sham groups), and the treated groups received different doses of CBD (1, 3, 5, 10, and 25 mg/kg, i.p.). SE score was recorded over the next 2 h following pilocarpine injection. Then, we measured the levels of pro-inflammatory cytokines, including interleukin (IL)-lβ and tumor necrosis factor (TNF)-α, using ELISA kits. Also we analyzed the expression of CB1, CB2, and GABAA receptors using the Western blot technique. Results: CBD at 5 mg/kg significantly reduced Racine's scale and duration of seizures, and increased the onset time of seizure. Moreover, CBD 5 mg/kg caused significant reductions in the elevated levels of IL-lβ and TNF-α, as well as a significant increase in the decreased level of CB1 receptor expression compared to the control group. In other word, CBD reverted the effects of SE in terms of neuroinflammation and CB1 receptor. Based on the obtained results, CBD was not able to restore the declined levels of CB2 or GABAA receptors. Conclusion: Our study found anticonvulsant effects of CBD on the SE rat model induced by lithium-pilocarpine with probable involvement of CB1 receptors and anti-inflammatory effects by reducing IL-1β and TNF-α markers independent of CB2 and GABAA receptors.
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Affiliation(s)
- Mahla Masoumi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Manavi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Razieh Mohammad Jafari
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Mirzaei
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Keshvad Hedayatyanfard
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Taghi Beigmohammadi
- Department of Intensive Care, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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2
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Kauffmann CM, Vendramini M, Batista AMV, Mota HBS, Andrade IA, Cárdenas SBS, Queiroz PS, Silva BA, Correa JR, Nagata T. Specific antibody production using recombinant proteins to elucidate seed transmission and nuclear localization of Coguvirus citrulli and Coguvirus henanense in radicles of watermelon crop. J Virol Methods 2024; 325:114886. [PMID: 38246564 DOI: 10.1016/j.jviromet.2024.114886] [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: 10/18/2023] [Revised: 12/23/2023] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
Watermelon crinkle leaf-associated virus 1 (WCLaV-1) and WCLaV-2, both belonging to the genus Coguvirus (family Phenuiviridae), have been identified in watermelon plants in Brazil. To study tissue tropism and the potential for seed transmission of these viruses, we initially planned to produce specific antibodies. However, difficulties in isolating and propagating the virus in host plants hindered the purified virus preparations. To overcome this problem, the nucleocapsid (N) proteins of WCLaV-1 and -2 were produced using the pepper ringspot virus vector. The N protein genes and the vector backbone were prepared by (RT-)PCR and ligated by Gibson assembly. The constructs were agro-infiltrated in Nicotiana benthamiana plants. The expressed N proteins were purified and used for polyclonal antibody production. The specificity of both antibodies was confirmed by antigen-coating ELISA, tissue-blot immunobinding assay and Western blot. By antigen-coating ELISA demonstrated that WCLaV-1 showed 93.1% of seed-transmission, while WCLaV-2 showed only 17.8%. The N protein of WCLaV-1 was detected in the cytoplasm of the seed tissues. It was also found in the nuclei of the radicle, as confirmed by confocal microscopy. We concluded that the antibodies exhibited both a high titer and sufficient specificity for use in ELISA-based diagnostics and for subcellular localization study.
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Affiliation(s)
- Caterynne M Kauffmann
- Departamento de Fitopatologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Marina Vendramini
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Amanda M V Batista
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Helena B S Mota
- Departamento de Fitopatologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Ikaro A Andrade
- Departamento de Biologia Microbiana, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Stephanny B S Cárdenas
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Paloma S Queiroz
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Bruno A Silva
- Departamento de Fitopatologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - José R Correa
- Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Tatsuya Nagata
- Departamento de Fitopatologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil; Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, 70910-900, Brazil; Departamento de Biologia Microbiana, Universidade de Brasília, Brasília, DF, 70910-900, Brazil.
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3
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Wang Y, Duan H, Yalikun Y, Cheng S, Li M. A pendulum-type electrochemical aptamer-based sensor for continuous, real-time and stable detection of proteins. Talanta 2024; 266:125026. [PMID: 37544252 DOI: 10.1016/j.talanta.2023.125026] [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: 04/24/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/08/2023]
Abstract
Continuous detection of proteins is crucial for health management and biomedical research. Electrochemical aptamer-based (E-AB) sensor that relies on binding affinity between a recognition oligonucleotide and its specific target is a versatile platform to fulfill this purpose. Yet, the vast majority of E-AB sensors are characterized by voltammetric methods, which suffer from signal drifts and low-frequency data acquisition during continuous operations. To overcome these limitations, we developed a novel E-AB sensor empowered by Gold nanoparticle-DNA Pendulum (GDP). Using chronoamperometric interrogation, the developed sensor enabled drift-resistant, high-frequency, and real-time monitoring of vascular endothelial growth factor (VEGF), a vital signaling protein that regulates angiogenesis, endothelial cell proliferation and vasculogenesis. We assembled VEGF aptamer-anchored GDP probes to a reduced graphene modified electrode, where a fast chronoamperometric current transient occurs as the GDP rapidly transport to the electrode surface. In the presence of target molecules, longer and concentration-dependent time decays were observed because of slower motion of the GDP in its bound state. After optimizing several decisive parameters, including composition ratios of GDP, probe density, and incubation time, the GDP empowered E-AB sensor achieves continuous, selective, and reversible monitoring of VEGF in both phosphate buffered saline (PBS) solutions and artificial urine with a wide detection range from 13 fM to 130 nM. Moreover, the developed sensor acquires signals on a millisecond timescale, and remains resistant to signal degradation during operation. This study offers a new approach to designing E-AB architectures for continuous biomolecular monitoring.
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Affiliation(s)
- Yizhou Wang
- School of Engineering, Macquarie University, Sydney, 2109, NSW, Australia
| | - Haowei Duan
- School of Engineering, Macquarie University, Sydney, 2109, NSW, Australia
| | - Yaxiaer Yalikun
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 630-0192, Ikoma, Japan
| | - Shaokoon Cheng
- School of Engineering, Macquarie University, Sydney, 2109, NSW, Australia
| | - Ming Li
- School of Engineering, Macquarie University, Sydney, 2109, NSW, Australia.
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4
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Gang J, Park KT, Kim S, Kim W. Involvement of the Spinal Serotonergic System in the Analgesic Effect of [6]-Shogaol in Oxaliplatin-Induced Neuropathic Pain in Mice. Pharmaceuticals (Basel) 2023; 16:1465. [PMID: 37895936 PMCID: PMC10610466 DOI: 10.3390/ph16101465] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/01/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Oxaliplatin is a chemotherapy drug that can induce severe acute neuropathy in patients within hours of treatment. In our previous study, 10 mg/kg [6]-shogaol (i.p.) significantly alleviated cold and mechanical allodynia induced by a 6 mg/kg oxaliplatin injection (i.p.); however, the precise serotonin-modulatory effect has not been investigated. In this study, we showed that intrathecal injections of NAN-190 (5-HT1A receptor antagonist, 1 µg) and MDL-72222 (5-HT3 receptor antagonist, 15 µg), but not ketanserin (5-HT2A receptor antagonist, 1 µg), significantly blocked the analgesic effect of [6]-shogaol (10 mg/kg, i.p.). Furthermore, the gene expression of the serotonin-synthesizing enzyme tryptophan hydroxylase 2 (TPH2) and serotonin levels in the spinal cord and serum were significantly downregulated (p < 0.0001 and p = 0.0002) and upregulated (p = 0.0298 and p = 0.0099) after oxaliplatin and [6]-shogaol administration, respectively. Moreover, both the gene and protein expression of the spinal serotonin receptors 5-HT1A and 5-HT3 significantly increased after [6]-shogaol injections (p < 0.0001). Finally, intrathecal injections of both receptor agonists (8-OH-DPAT; 5-HT1A receptor agonist, 10 µg and m-CPBG; 5-HT3 receptor agonist, 15 µg) mimicked the effects of [6]-shogaol in oxaliplatin-injected mice. Taken together, these results demonstrate that [6]-shogaol attenuates oxaliplatin-induced neuropathic pain by modulating the spinal serotoninergic system.
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Affiliation(s)
- Juan Gang
- Department of East-West Medicine, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea;
| | - Keun-Tae Park
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea; (K.-T.P.); (S.K.)
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Suyong Kim
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea; (K.-T.P.); (S.K.)
| | - Woojin Kim
- Department of East-West Medicine, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea;
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea; (K.-T.P.); (S.K.)
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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5
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Pedrazzi B, Treyer A, Cohen R, Bowman A, Acevedo-Skrip J, Kearns K, Westover D, Loughney JW. Greening automation: Wash and Re-use of disposable 384-well liquid handling tips to enable sustainable high-throughput vaccine development. SLAS Technol 2023; 28:375-379. [PMID: 37327946 DOI: 10.1016/j.slast.2023.06.003] [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: 11/07/2022] [Revised: 05/13/2023] [Accepted: 06/11/2023] [Indexed: 06/18/2023]
Abstract
Laboratory automation uses large amounts of plastic consumables, generating substantial single-use plastic waste. Automated ELISAs are an indispensable analytical tool in vaccine formulation and process development. Current workflows, however, rely on disposable liquid handling tips. In progress toward sustainability, we developed workflows for washing 384-well format liquid handling tips, using nontoxic reagents, for re-use during ELISA testing. We estimate that this workflow reduces plastic and cardboard waste in our facility by 989 kg/year and 202 kg/year, respectively, without introducing new chemicals into our waste steam.
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Affiliation(s)
- Brittney Pedrazzi
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA
| | - Aleksandr Treyer
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA
| | - Rachael Cohen
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA
| | - Amy Bowman
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA
| | - Jillian Acevedo-Skrip
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA
| | - Kristine Kearns
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA
| | - David Westover
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA.
| | - John W Loughney
- High-Throughput Analytics, Analytical Research & Development, Merck & Co. Inc., Rahway, NJ, USA.
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6
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Toldrà A, Chondrogiannis G, Hamedi MM. A 3D paper microfluidic device for enzyme-linked assays: Application to DNA analysis. Biotechnol J 2023; 18:e2300143. [PMID: 37222181 DOI: 10.1002/biot.202300143] [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: 03/28/2023] [Revised: 03/31/2023] [Accepted: 05/17/2023] [Indexed: 05/25/2023]
Abstract
A paper microfluidic device capable of conducting enzyme-linked assays is presented: a microfluidic enzyme-linked paper analytical device (μEL-PAD). The system exploits a wash-free sandwich coupling to form beads/analyte/enzyme complexes, which are subsequently added to the vertical flow device composed of wax-printed paper, waxed nitrocellulose membrane and absorbent/barrier layers. The nitrocellulose retains the bead complexes without disrupting the flow, enabling for an efficient washing step. The entrapped complexes then interact with the chromogenic substrate stored on the detection paper, generating a color change on it, quantified with an open-source smartphone software. This is a universal paper-based technology suitable for high-sensitivity quantification of many analytes, such as proteins or nucleic acids, with different enzyme-linked formats. Here, the potential of the μEL-PAD is demonstrated to detect DNA from Staphylococcus epidermidis. After generation of isothermally amplified genomic DNA from bacteria, Biotin/FITC-labeled products were analyzed with the μEL-PAD, exploiting streptavidin-coated beads and antiFITC-horseradish peroxidase. The μEL-PAD achieved a limit of detection (LOD) and quantification <10 genome copies/μL, these being at least 70- and 1000-fold lower, respectively, than a traditional lateral flow assay (LFA) exploiting immobilized streptavidin and antiFITC-gold nanoparticles. It is envisaged that the device will be a good option for low-cost, simple, quantitative, and sensitive paper-based point-of-care testing.
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Affiliation(s)
- Anna Toldrà
- School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Georgios Chondrogiannis
- School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mahiar M Hamedi
- School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
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7
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Azulay A, Cohen-Lavi L, Friedman LM, McGargill MA, Hertz T. Mapping antibody footprints using binding profiles. CELL REPORTS METHODS 2023; 3:100566. [PMID: 37671022 PMCID: PMC10475849 DOI: 10.1016/j.crmeth.2023.100566] [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: 02/21/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 09/07/2023]
Abstract
The increasing use of monoclonal antibodies (mAbs) in biology and medicine necessitates efficient methods for characterizing their binding epitopes. Here, we developed a high-throughput antibody footprinting method based on binding profiles. We used an antigen microarray to profile 23 human anti-influenza hemagglutinin (HA) mAbs using HA proteins of 43 human influenza strains isolated between 1918 and 2018. We showed that the mAb's binding profile can be used to characterize its influenza subtype specificity, binding region, and binding site. We present mAb-Patch-an epitope prediction method that is based on a mAb's binding profile and the 3D structure of its antigen. mAb-Patch was evaluated using four mAbs with known solved mAb-HA structures. mAb-Patch identifies over 67% of the true epitope when considering only 50-60 positions along the antigen. Our work provides proof of concept for utilizing antibody binding profiles to screen large panels of mAbs and to down-select antibodies for further functional studies.
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Affiliation(s)
- Asaf Azulay
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- National Institute of Biotechnology in the Negev, Beer-Sheva, Israel
| | - Liel Cohen-Lavi
- National Institute of Biotechnology in the Negev, Beer-Sheva, Israel
- Department of Industrial Engineering and Management, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Lilach M. Friedman
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- National Institute of Biotechnology in the Negev, Beer-Sheva, Israel
| | - Maureen A. McGargill
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Tomer Hertz
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- National Institute of Biotechnology in the Negev, Beer-Sheva, Israel
- Vaccine and Infectious Disease Division, Fred Hutch Cancer Research Center, Seattle, WA, USA
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8
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Salafutdinov II, Gatina DZ, Markelova MI, Garanina EE, Malanin SY, Gazizov IM, Izmailov AA, Rizvanov AA, Islamov RR, Palotás A, Safiullov ZZ. A Biosafety Study of Human Umbilical Cord Blood Mononuclear Cells Transduced with Adenoviral Vector Carrying Human Vascular Endothelial Growth Factor cDNA In Vitro. Biomedicines 2023; 11:2020. [PMID: 37509661 PMCID: PMC10377014 DOI: 10.3390/biomedicines11072020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
The biosafety of gene therapy remains a crucial issue for both the direct and cell-mediated delivery of recombinant cDNA encoding biologically active molecules for the pathogenetic correction of congenital or acquired disorders. The diversity of vector systems and cell carriers for the delivery of therapeutic genes revealed the difficulty of developing and implementing a safe and effective drug containing artificial genetic material for the treatment of human diseases in practical medicine. Therefore, in this study we assessed changes in the transcriptome and secretome of umbilical cord blood mononuclear cells (UCB-MCs) genetically modified using adenoviral vector (Ad5) carrying cDNA encoding human vascular endothelial growth factor (VEGF165) or reporter green fluorescent protein (GFP). A preliminary analysis of UCB-MCs transduced with Ad5-VEGF165 and Ad5-GFP with MOI of 10 showed efficient transgene expression in gene-modified UCB-MCs at mRNA and protein levels. The whole transcriptome sequencing of native UCB-MCs, UCB-MC+Ad5-VEGF165, and UCB-MC+Ad5-GFP demonstrated individual sample variability rather than the effect of Ad5 or the expression of recombinant vegf165 on UCB-MC transcriptomes. A multiplex secretome analysis indicated that neither the transduction of UCB-MCs with Ad5-GFP nor with Ad5-VEGF165 affects the secretion of the studied cytokines, chemokines, and growth factors by gene-modified cells. Here, we show that UCB-MCs transduced with Ad5 carrying cDNA encoding human VEGF165 efficiently express transgenes and preserve transcriptome and secretome patterns. This data demonstrates the biosafety of using UCB-MCs as cell carriers of therapeutic genes.
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Affiliation(s)
- Ilnur I Salafutdinov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Dilara Z Gatina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Maria I Markelova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Ekaterina E Garanina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Sergey Yu Malanin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Ilnaz M Gazizov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
| | - Andrei A Izmailov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
| | - Albert A Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
| | - Rustem R Islamov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
| | - András Palotás
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia
- Asklepios-Med (Private Medical Practice and Research Center), H-6722 Szeged, Hungary
- Tokaj-Hegyalja University, H-3910 Tokaj, Hungary
| | - Zufar Z Safiullov
- Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan 420012, Russia
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9
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Yeh MT, Smith M, Carlyle S, Konopka-Anstadt JL, Burns CC, Konz J, Andino R, Macadam A. Genetic stabilization of attenuated oral vaccines against poliovirus types 1 and 3. Nature 2023; 619:135-142. [PMID: 37316671 PMCID: PMC10322712 DOI: 10.1038/s41586-023-06212-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/12/2023] [Indexed: 06/16/2023]
Abstract
Vaccination with Sabin, a live attenuated oral polio vaccine (OPV), results in robust intestinal and humoral immunity and has been key to controlling poliomyelitis. As with any RNA virus, OPV evolves rapidly to lose attenuating determinants critical to the reacquisition of virulence1-3 resulting in vaccine-derived, virulent poliovirus variants. Circulation of these variants within underimmunized populations leads to further evolution of circulating, vaccine-derived poliovirus with higher transmission capacity, representing a significant risk of polio re-emergence. A new type 2 OPV (nOPV2), with promising clinical data on genetic stability and immunogenicity, recently received authorization from the World Health Organization for use in response to circulating, vaccine-derived poliovirus outbreaks. Here we report the development of two additional live attenuated vaccine candidates against type 1 and 3 polioviruses. The candidates were generated by replacing the capsid coding region of nOPV2 with that from Sabin 1 or 3. These chimeric viruses show growth phenotypes similar to nOPV2 and immunogenicity comparable to their parental Sabin strains, but are more attenuated. Our experiments in mice and deep sequencing analysis confirmed that the candidates remain attenuated and preserve all the documented nOPV2 characteristics concerning genetic stability following accelerated virus evolution. Importantly, these vaccine candidates are highly immunogenic in mice as monovalent and multivalent formulations and may contribute to poliovirus eradication.
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Affiliation(s)
- Ming Te Yeh
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Matthew Smith
- National Institute for Biological Standards and Control, South Mimms, UK
| | - Sarah Carlyle
- National Institute for Biological Standards and Control, South Mimms, UK
| | - Jennifer L Konopka-Anstadt
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
- Center for Vaccine Innovation and Access, PATH, Seattle, WA, USA
| | - Cara C Burns
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - John Konz
- Center for Vaccine Innovation and Access, PATH, Seattle, WA, USA
| | - Raul Andino
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA.
| | - Andrew Macadam
- National Institute for Biological Standards and Control, South Mimms, UK.
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10
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Valipour A, Namdar Ahmad Abad H, Vatanchian M, Arezumand R. Designing and Developing Enzyme-Linked Immunosorbent Assay Sandwich Kit for Measuring Placental Growth Factor Concentration. Monoclon Antib Immunodiagn Immunother 2023; 42:3-8. [DOI: https:/doi.org/10.1089/mab.2022.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Affiliation(s)
- Arezoo Valipour
- Department of Advanced Sciences and Technologies, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Hasan Namdar Ahmad Abad
- Department of Pathobiology and Laboratory Sciences, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mehran Vatanchian
- Department of Anatomical Sciences, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Roghaye Arezumand
- Department of Advanced Sciences and Technologies, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
- Department of Natural Products and Medicinal Plants Research Center, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
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11
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Valipour A, Namdar Ahmad Abad H, Vatanchian M, Arezumand R. Designing and Developing Enzyme-Linked Immunosorbent Assay Sandwich Kit for Measuring Placental Growth Factor Concentration. Monoclon Antib Immunodiagn Immunother 2023; 42:3-8. [PMID: 36779992 DOI: 10.1089/mab.2022.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
Placental growth factor (PlGF) is an angiogenic factor belonging to vascular endothelial growth factor family. This factor is mainly expressed in the placenta and have important role in blood supply to embryonic tissues and fetal. According to accumulated data after 10th week of gestational age the expression of PlGF is increased. The peak of this factor is seen in the 30th week of pregnancy. The abnormal expression of PlGF have been seen in some diseases such as preeclampsia, eclampsia, cancer, and atherosclerotic lesions. Preeclampsia is a pregnancy complication characterized by high blood pressure and signs of damage to another organ system, most often the liver and kidneys. As noted the level of PlGF decreased in preeclampsia is, therefore, timely and accurate measurement of this factor could help in diagnosing preeclampsia. In this study, we worked on development of sandwich enzyme-linked immunosorbent assay (ELISA) kit for measurement of PlGF, to this end, bivalent single-domain monoclonal antibody with high affinity binding was used as detection antibody and rabbit polyclonal antibody with strong signal to PlGF was used as capture antibody. Both types of antibodies were produced in the laboratory. Therefore, this study showed that the designed kit can measure PlGF up to 7.5 pg/mL. Intra-assay accuracy was <10% and interassay accuracy was <15%. The ELISA sandwich kit had the appropriate sensitivity and accuracy in measuring human PlGF.
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Affiliation(s)
- Arezoo Valipour
- Department of Advanced Sciences and Technologies, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Hasan Namdar Ahmad Abad
- Department of Pathobiology and Laboratory Sciences, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mehran Vatanchian
- Department of Anatomical Sciences, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Roghaye Arezumand
- Department of Advanced Sciences and Technologies, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.,Department of Natural Products and Medicinal Plants Research Center, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
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12
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Zhu C, Zhang F, Li H, Chen Z, Yan M, Li L, Qu F. CRISPR/Cas Systems Accelerating the Development of Aptasensors. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Ahirwar R, Bhattacharya A, Kumar S. Unveiling the underpinnings of various non-conventional ELISA variants: a review article. Expert Rev Mol Diagn 2022; 22:761-774. [PMID: 36004453 DOI: 10.1080/14737159.2022.2117615] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Enzyme-linked immunosorbent assay (ELISA) is a key bio-analytical technique used for the detection of a large array of antigenic substances of scientific, clinical, food safety, and environmental importance. The assay primarily involves capturing and detecting target analytes using specific antigen-antibody interactions. The wide usage of ELISA shoulders on its high specificity and reproducibility. Notwithstanding, the conventional microwell plate-based format of ELISA has some major drawbacks, such as long assay time (4 - 18 h), large sample volumes requirement (100 - 200 μL), lack of multiplicity, and burdensome procedures that limit its utility in rapid and affordable diagnostics. AREAS COVERED Here, we reviewed microfluidic-ELISA, paper-ELISA, aptamer-ELISA, and those based on novel incubation such as heat-ELISA, pressure-ELISA, microwave-ELISA, and sound-ELISA. Further, the current trends and future prospects of these ELISA protocols in clinical diagnostics are discussed. EXPERT OPINION The reviewed non-conventional ELISA formats are relatively rapid, require low reagent volumes, are multiplexable, and could be performed in a low-cost setup. In our opinion, these non-conventional variants of ELISA are on a par with the conventional format for clinical diagnostics and fundamental biological research and hold added clinical translational potential for quick, inexpensive, and convenient measurements.
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Affiliation(s)
- Rajesh Ahirwar
- Department of Environmental Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal-462030, India
| | - Akanksha Bhattacharya
- Department of Environmental Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal-462030, India
| | - Saroj Kumar
- School of Biosciences, Apeejay Stya University, Gurgaon- 122103, India
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14
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Sanford AA, Manuel BA, Romero-Reyes MA, Heemstra JM. Combating small molecule environmental contaminants: detection and sequestration using functional nucleic acids. Chem Sci 2022; 13:7670-7684. [PMID: 35865900 PMCID: PMC9258336 DOI: 10.1039/d2sc00117a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/26/2022] [Indexed: 12/05/2022] Open
Abstract
Small molecule contaminants pose a significant threat to the environment and human health. While regulations are in place for allowed limits in many countries, detection and remediation of contaminants in more resource-limited settings and everyday environmental sources remains a challenge. Functional nucleic acids, including aptamers and DNA enzymes, have emerged as powerful options for addressing this challenge due to their ability to non-covalently interact with small molecule targets. The goal of this perspective is to outline recent efforts toward the selection of aptamers for small molecules and describe their subsequent implementation for environmental applications. Finally, we provide an outlook that addresses barriers that hinder these technologies from being widely adopted in field friendly settings and propose a path forward toward addressing these challenges.
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Affiliation(s)
- Aimee A Sanford
- Department of Chemistry, Emory University Atlanta Georgia 30322 USA
| | - Brea A Manuel
- Department of Chemistry, Emory University Atlanta Georgia 30322 USA
| | - Misael A Romero-Reyes
- Department of Chemistry, Emory University Atlanta Georgia 30322 USA
- Department of Chemistry, Hanover College Hanover Indiana 47243 USA
| | - Jennifer M Heemstra
- Department of Chemistry, Emory University Atlanta Georgia 30322 USA
- Department of Biomedical Engineering, Georgia Institute of Technology, Emory University Atlanta GA 30332 USA
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15
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Kabay G, DeCastro J, Altay A, Smith K, Lu HW, Capossela AM, Moarefian M, Aran K, Dincer C. Emerging Biosensing Technologies for the Diagnostics of Viral Infectious Diseases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201085. [PMID: 35288985 DOI: 10.1002/adma.202201085] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Indexed: 06/14/2023]
Abstract
Several viral infectious diseases appear limitless since the beginning of the 21st century, expanding into pandemic lengths. Thus, there are extensive efforts to provide more efficient means of diagnosis, a better understanding of acquired immunity, and improved monitoring of inflammatory biomarkers, as these are all crucial for controlling the spread of infection while aiding in vaccine development and improving patient outcomes. In this regard, various biosensors have been developed recently to streamline pathogen and immune response detection by addressing the limitations of traditional methods, including isothermal amplification-based systems and lateral flow assays. This review explores state-of-the-art biosensors for detecting viral pathogens, serological assays, and inflammatory biomarkers from the material perspective, by discussing their advantages, limitations, and further potential regarding their analytical performance, clinical utility, and point-of-care adaptability. Additionally, next-generation biosensing technologies that offer better sensitivity and selectivity, and easy handling for end-users are highlighted. An emerging example of these next-generation biosensors are those powered by novel synthetic biology tools, such as clustered regularly interspaced short palindromic repeats (CRISPR) with CRISPR-associated proteins (Cas), in combination with integrated point-of-care devices. Lastly, the current challenges are discussed and a roadmap for furthering these advanced biosensing technologies to manage future pandemics is provided.
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Affiliation(s)
- Gözde Kabay
- FIT Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79110, Freiburg, Germany
- Department of Microsystems Engineering - IMTEK, University of Freiburg, 79110, Freiburg, Germany
- Institute of Functional Interfaces - IFG, Karlsruhe Institute of Technology, 76344, Karlsruhe, Germany
| | - Jonalyn DeCastro
- The Claremont Colleges, Keck Graduate Institute, Claremont, CA, 91711, USA
| | - Alara Altay
- FIT Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79110, Freiburg, Germany
- Department of Microsystems Engineering - IMTEK, University of Freiburg, 79110, Freiburg, Germany
| | - Kasey Smith
- The Claremont Colleges, Keck Graduate Institute, Claremont, CA, 91711, USA
| | - Hsiang-Wei Lu
- The Claremont Colleges, Keck Graduate Institute, Claremont, CA, 91711, USA
| | | | - Maryam Moarefian
- The Claremont Colleges, Keck Graduate Institute, Claremont, CA, 91711, USA
| | - Kiana Aran
- The Claremont Colleges, Keck Graduate Institute, Claremont, CA, 91711, USA
- Cardea Bio Inc., San Diego, CA, 92121, USA
| | - Can Dincer
- FIT Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79110, Freiburg, Germany
- Department of Microsystems Engineering - IMTEK, University of Freiburg, 79110, Freiburg, Germany
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16
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Transcription Factor-Based Biosensors for Detecting Pathogens. BIOSENSORS 2022; 12:bios12070470. [PMID: 35884273 PMCID: PMC9312912 DOI: 10.3390/bios12070470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 12/23/2022]
Abstract
Microorganisms are omnipresent and inseparable from our life. Many of them are beneficial to humans, while some are not. Importantly, foods and beverages are susceptible to microbial contamination, with their toxins causing illnesses and even death in some cases. Therefore, monitoring and detecting harmful microorganisms are critical to ensuring human health and safety. For several decades, many methods have been developed to detect and monitor microorganisms and their toxicants. Conventionally, nucleic acid analysis and antibody-based analysis were used to detect pathogens. Additionally, diverse chromatographic methods were employed to detect toxins based on their chemical and structural properties. However, conventional techniques have several disadvantages concerning analysis time, sensitivity, and expense. With the advances in biotechnology, new approaches to detect pathogens and toxins have been reported to compensate for the disadvantages of conventional analysis from different research fields, including electrochemistry, nanotechnology, and molecular biology. Among them, we focused on the recent studies of transcription factor (TF)-based biosensors to detect microorganisms and discuss their perspectives and applications. Additionally, the other biosensors for detecting microorganisms reported in recent studies were also introduced in this review.
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17
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Ołdak Ł, Zielińska Z, Gorodkiewicz E. Methods of PARP-1 Determination and its Importance in Living
Organisms. Protein Pept Lett 2022; 29:496-504. [DOI: 10.2174/0929866529666220405160715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/03/2022] [Accepted: 01/20/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
PARP-1 is one of the 18 PARP enzymes that are involved in important processes at the
cellular level. The most important tasks of PARP-1 are to detect and repair DNA damage and to
prevent processes of apoptosis. By finding and using new strategies for marking and detecting the
activity of this protein, it is possible to identify more and more tasks in which it participates. In
pathological states, PARP-1 activity increases significantly. Since the 1980s, scientists have been
searching for and discussing substances that may inhibit PARP-1 activity and disrupt DNA damage
response pathways. In this way, unwanted cells could be destroyed. The paper presents a short
description of the methods used in the determination of PARP-1 by various research groups. A
critical approach to each of them was also made by pointing to the advantages and disadvantages of
the described analytical methods. The literature review contains information on methods useful for
PARP-1 determination, such as SPR, QCM, CL and FL, DPV, SDS-PAGE with MS, MALDI MS,
Western Blot, ELISA and ATR-FTIR spectroscopy. It also includes analysis of the results of
research on inhibitors that may be effective in the diagnosis and treatment of cancer and other
diseases.
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Affiliation(s)
- Łukasz Ołdak
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
- Doctoral School of Exact and Natural Science, Faculty of Chemistry, Bioanalysis Laboratory, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
| | - Zuzanna Zielińska
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
| | - Ewa Gorodkiewicz
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245, Bialystok, Poland
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18
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Wang X, Wu T, Oliveira LFS, Zhang D. Sheet, Surveillance, Strategy, Salvage and Shield in global biodefense system to protect the public health and tackle the incoming pandemics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153469. [PMID: 35093353 PMCID: PMC8799268 DOI: 10.1016/j.scitotenv.2022.153469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 01/23/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
The pandemic of COVID-19 challenges the global health system and raises our concerns on the next waves of other emerging infectious diseases. Considering the lessons from the failure of world's pandemic warning system against COVID-19, many scientists and politicians have mentioned different strategies to improve global biodefense system, among which Sheet, Surveillance, Strategy, Salvage and Shield (5S) are frequently discussed. Nevertheless, the current focus is mainly on the optimization and management of individual strategy, and there are limited attempts to combine the five strategies as an integral global biodefense system. Sheet represents the biosafety datasheet for biohazards in natural environment and human society, which helps our deeper understanding on the geographical pattern, transmission routes and infection mechanism of pathogens. Online surveillance and prognostication network is an environmental Surveillance tool for monitoring the outbreak of pandemic diseases and alarming the risks to take emergency actions, targeting aerosols, waters, soils and animals. Strategy is policies and legislations for social distancing, lockdown and personal protective equipment to block the spread of infectious diseases in communities. Clinical measures are Salvage on patients by innovating appropriate medicines and therapies. The ultimate defensive Shield is vaccine development to protect healthy crowds from infection. Fighting against COVID-19 and other emerging infectious diseases is a long rocky journey, requiring the common endeavors of scientists and politicians from all countries around the world. 5S in global biodefense system bring a ray of light to the current darkest and future road from environmental and geographical perspectives.
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Affiliation(s)
- Xinzi Wang
- School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Tianyun Wu
- Research Institute for Environmental Innovation (Tsinghua-Suzhou), Suzhou 215163, PR China
| | - Luis F S Oliveira
- Departamento de Ingeniería Civil y Arquitectura, Universidad de Lima, Avenida Javier Prado Este 4600, Santiago de Surco 1503, Peru; Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, 080002 Barranquilla, Atlántico, Colombia
| | - Dayi Zhang
- College of New Energy and Environment, Jilin University, Changchun 130021, PR China.
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19
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Chen Q, Hu J, Hu X, Koh K, Chen H. Current methods and emerging approaches for detection of programmed death ligand 1. Biosens Bioelectron 2022; 208:114179. [PMID: 35364526 DOI: 10.1016/j.bios.2022.114179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 02/21/2022] [Accepted: 03/08/2022] [Indexed: 02/08/2023]
Abstract
Various tumor cells overexpress programmed death ligand 1 (PD-L1), a main immune checkpoint protein (ICP) embedded in the tumor cells membrane, to evade immune recognition through the interaction between PD-L1 and its receptor programmed death 1 (PD-1) which is from T-cells for maintaining immune tolerance. So inhibitors targeting the PD-1 or PD-L1 can block the PD-1/PD-L1 signaling pathway to restore the recognition activity of the immune system to tumor cells, which also have been utilized as a novel approach to improve the clinical therapeutic effect for cancer patients. Since not all cancer patients can respond to these inhibitors effectively, previous diagnosis of PD-L1 is significant to target the right treatments for cancer patients. This review pays attention to the PD-L1 detection and recent progress in the measurement of PD-L1 concentration, including various detection methods based on optical sensors as well as electrochemical assays. Apart from above those, we also focus on the prospects of PD-L1 detection in precision medicine.
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Affiliation(s)
- Qiang Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China; School of Medicine, Shanghai University, Shanghai, 200444, PR China
| | - Junjie Hu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Xiaojun Hu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Kwangnak Koh
- Institute of General Education, Pusan National University, Busan, 609-735, Republic of Korea
| | - Hongxia Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
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20
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Rasmi Y, Heidari N, Kübra Kırboğa K, Hatamkhani S, Tekin B, Alipour S, Naderi R, Farnamian Y, Akca I. The importance of neopterin in COVID-19: The prognostic value and relation with the disease severity. Clin Biochem 2022; 104:1-12. [PMID: 35307400 PMCID: PMC8929545 DOI: 10.1016/j.clinbiochem.2022.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/10/2022] [Accepted: 03/12/2022] [Indexed: 02/07/2023]
Abstract
Coronavirus Disease 2019 [COVID-19], caused by severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2], has rapidly evolved into a global health emergency. Neopterin [NPT], produced by macrophages when stimulated with interferon [IFN-]gamma, is an essential cytokine in the antiviral immune response. NPT has been used as a marker for the early assessment of disease severity in different diseases. The leading cause of NPT production is the pro-inflammatory cytokine IFN-. Macrophage activation has also been revealed to be linked with disease severity in SARS-CoV-2 patients. We demonstrate the importance of NPT in the pathogenesis of SARS-CoV-2 and suggest that targeting NPT in SARS-CoV-2 infection may be critical in the early prediction of disease progression and provision of timely management of infected individuals.
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Affiliation(s)
- Yousef Rasmi
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran,Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Nadia Heidari
- Department of Biochemistry, School of Medicine, Gorgan University of Medical Sciences, Urmia, Iran
| | | | - Shima Hatamkhani
- Experimental and Applied Pharmaceutical Sciences Research Center, Department of Clinical Pharmacy, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Burcu Tekin
- Izmir Institute of Technology, Biotechnology Department, Izmir, Turkey
| | - Shahryar Alipour
- Department of Biochemistry and Applied Cell, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Roya Naderi
- Department of Physiology, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Yeghaneh Farnamian
- Student research Center, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Ilknur Akca
- Mersin University, Faculty of Sciences, Department of Biotechnology, Mersin, Turkey
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21
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Wang Y, Gao Y, Yin Y, Pan Y, Wang Y, Song Y. Nanomaterial-assisted microfluidics for multiplex assays. Mikrochim Acta 2022; 189:139. [PMID: 35275267 DOI: 10.1007/s00604-022-05226-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/10/2022] [Indexed: 02/07/2023]
Abstract
Simultaneous detection of different biomarkers from a single specimen in a single test, allowing more rapid, efficient, and low-cost analysis, is of great significance for accurate diagnosis of disease and efficient monitoring of therapy. Recently, developments in microfabrication and nanotechnology have advanced the integration of nanomaterials in microfluidic devices toward multiplex assays of biomarkers, combining both the advantages of microfluidics and the unique properties of nanomaterials. In this review, we focus on the state of the art in multiplexed detection of biomarkers based on nanomaterial-assisted microfluidics. Following an overview of the typical microfluidic analytical techniques and the most commonly used nanomaterials for biochemistry analysis, we highlight in detail the nanomaterial-assisted microfluidic strategies for different biomarkers. These highly integrated platforms with minimum sample consumption, high sensitivity and specificity, low detection limit, enhanced signals, and reduced detection time have been extensively applied in various domains and show great potential in future point-of-care testing and clinical diagnostics.
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Affiliation(s)
- Yanping Wang
- Sino-French Engineer School, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Yanfeng Gao
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Yi Yin
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Yongchun Pan
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China
| | - Yuzhen Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Yujun Song
- College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, 210023, China.
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22
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Mac QD, Sivakumar A, Phuengkham H, Xu C, Bowen JR, Su FY, Stentz SZ, Sim H, Harris AM, Li TT, Qiu P, Kwong GA. Urinary detection of early responses to checkpoint blockade and of resistance to it via protease-cleaved antibody-conjugated sensors. Nat Biomed Eng 2022; 6:310-324. [PMID: 35241815 DOI: 10.1038/s41551-022-00852-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 01/28/2022] [Indexed: 12/15/2022]
Abstract
Immune checkpoint blockade (ICB) therapy does not benefit the majority of treated patients, and those who respond to the therapy can become resistant to it. Here we report the design and performance of systemically administered protease activity sensors conjugated to anti-programmed cell death protein 1 (αPD1) antibodies for the monitoring of antitumour responses to ICB therapy. The sensors consist of a library of mass-barcoded protease substrates that, when cleaved by tumour proteases and immune proteases, are released into urine, where they can be detected by mass spectrometry. By using syngeneic mouse models of colorectal cancer, we show that random forest classifiers trained on mass spectrometry signatures from a library of αPD1-conjugated mass-barcoded activity sensors for differentially expressed tumour proteases and immune proteases can be used to detect early antitumour responses and discriminate resistance to ICB therapy driven by loss-of-function mutations in either the B2m or Jak1 genes. Biomarkers of protease activity may facilitate the assessment of early responses to ICB therapy and the classification of refractory tumours based on resistance mechanisms.
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Affiliation(s)
- Quoc D Mac
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Anirudh Sivakumar
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Hathaichanok Phuengkham
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Congmin Xu
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - James R Bowen
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Fang-Yi Su
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Samuel Z Stentz
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Hyoungjun Sim
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Adrian M Harris
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Tonia T Li
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA
| | - Peng Qiu
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA.,Parker H. Petit Institute for Bioengineering and Bioscience, Atlanta, GA, USA.,The Georgia Immunoengineering Consortium, Emory University and Georgia Tech, Atlanta, GA, USA.,Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Gabriel A Kwong
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA. .,Parker H. Petit Institute for Bioengineering and Bioscience, Atlanta, GA, USA. .,The Georgia Immunoengineering Consortium, Emory University and Georgia Tech, Atlanta, GA, USA. .,Winship Cancer Institute, Emory University, Atlanta, GA, USA. .,Institute for Electronics and Nanotechnology, Georgia Tech, Atlanta, GA, USA. .,Integrated Cancer Research Center, Georgia Tech, Atlanta, GA, USA.
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23
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Dronina J, Samukaite-Bubniene U, Ramanavicius A. Advances and insights in the diagnosis of viral infections. J Nanobiotechnology 2021; 19:348. [PMID: 34717656 PMCID: PMC8556785 DOI: 10.1186/s12951-021-01081-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/11/2021] [Indexed: 12/15/2022] Open
Abstract
Viral infections are the most common among diseases that globally require around 60 percent of medical care. However, in the heat of the pandemic, there was a lack of medical equipment and inpatient facilities to provide all patients with viral infections. The detection of viral infections is possible in three general ways such as (i) direct virus detection, which is performed immediately 1-3 days after the infection, (ii) determination of antibodies against some virus proteins mainly observed during/after virus incubation period, (iii) detection of virus-induced disease when specific tissue changes in the organism. This review surveys some global pandemics from 1889 to 2020, virus types, which induced these pandemics, and symptoms of some viral diseases. Non-analytical methods such as radiology and microscopy also are overviewed. This review overlooks molecular analysis methods such as nucleic acid amplification, antibody-antigen complex determination, CRISPR-Cas system-based viral genome determination methods. Methods widely used in the certificated diagnostic laboratory for SARS-CoV-2, Influenza A, B, C, HIV, and other viruses during a viral pandemic are outlined. A comprehensive overview of molecular analytical methods has shown that the assay's sensitivity, accuracy, and suitability for virus detection depends on the choice of the number of regions in the viral open reading frame (ORF) genome sequence and the validity of the selected analytical method.
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Affiliation(s)
- Julija Dronina
- Laboratory of Nanotechnology, Department of Functional Materials and Electronics, Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius, Lithuania
- Department of Physical Chemistry, Faculty of Chemistry and Geoscience, Vilnius University, Naugarduko str. 24, 03225, Vilnius, Lithuania
| | - Urte Samukaite-Bubniene
- Department of Physical Chemistry, Faculty of Chemistry and Geoscience, Vilnius University, Naugarduko str. 24, 03225, Vilnius, Lithuania
| | - Arunas Ramanavicius
- Department of Physical Chemistry, Faculty of Chemistry and Geoscience, Vilnius University, Naugarduko str. 24, 03225, Vilnius, Lithuania.
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Knutson SD, Arthur RA, Johnston HR, Heemstra JM. Direct Immunodetection of Global A-to-I RNA Editing Activity with a Chemiluminescent Bioassay. Angew Chem Int Ed Engl 2021; 60:17009-17017. [PMID: 33979483 PMCID: PMC8562906 DOI: 10.1002/anie.202102762] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/08/2021] [Indexed: 12/15/2022]
Abstract
Adenosine-to-inosine (A-to-I) editing is a conserved eukaryotic RNA modification that contributes to development, immune response, and overall cellular function. Here, we utilize Endonuclease V (EndoV), which binds specifically to inosine in RNA, to develop an EndoV-linked immunosorbency assay (EndoVLISA) as a rapid, plate-based chemiluminescent method for measuring global A-to-I editing signatures in cellular RNA. We first optimize and validate our assay with chemically synthesized oligonucleotides. We then demonstrate rapid detection of inosine content in treated cell lines, demonstrating equivalent performance against current standard RNA-seq approaches. Lastly, we deploy our EndoVLISA for profiling differential A-to-I RNA editing signatures in normal and diseased human tissue, illustrating the utility of our platform as a diagnostic bioassay. Together, the EndoVLISA method is cost-effective, straightforward, and utilizes common laboratory equipment, offering a highly accessible new approach for studying A-to-I editing. Moreover, the multi-well plate format makes this the first assay amenable for direct high-throughput quantification of A-to-I editing for applications in disease detection and drug development.
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Affiliation(s)
- Steve D Knutson
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, GA, 30322, USA
| | - Robert A Arthur
- Emory Integrated Computational Core, Emory University, 101 Woodruff Cir., Atlanta, GA, 30322, USA
- Department of Human Genetics, Emory University, 1365 Clifton Rd, Atlanta, GA, 30322, USA
| | - H Richard Johnston
- Emory Integrated Computational Core, Emory University, 101 Woodruff Cir., Atlanta, GA, 30322, USA
- Department of Human Genetics, Emory University, 1365 Clifton Rd, Atlanta, GA, 30322, USA
| | - Jennifer M Heemstra
- Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, GA, 30322, USA
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25
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Direct Immunodetection of Global A‐to‐I RNA Editing Activity with a Chemiluminescent Bioassay. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Yeh MT, Bujaki E, Dolan PT, Smith M, Wahid R, Konz J, Weiner AJ, Bandyopadhyay AS, Van Damme P, De Coster I, Revets H, Macadam A, Andino R. Engineering the Live-Attenuated Polio Vaccine to Prevent Reversion to Virulence. Cell Host Microbe 2020; 27:736-751.e8. [PMID: 32330425 PMCID: PMC7566161 DOI: 10.1016/j.chom.2020.04.003] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 12/03/2019] [Accepted: 04/02/2020] [Indexed: 12/11/2022]
Abstract
The live-attenuated oral poliovirus vaccine (OPV or Sabin vaccine) replicates in gut-associated tissues, eliciting mucosa and systemic immunity. OPV protects from disease and limits poliovirus spread. Accordingly, vaccination with OPV is the primary strategy used to end the circulation of all polioviruses. However, the ability of OPV to regain replication fitness and establish new epidemics represents a significant risk of polio re-emergence should immunization cease. Here, we report the development of a poliovirus type 2 vaccine strain (nOPV2) that is genetically more stable and less likely to regain virulence than the original Sabin2 strain. We introduced modifications within at the 5' untranslated region of the Sabin2 genome to stabilize attenuation determinants, 2C coding region to prevent recombination, and 3D polymerase to limit viral adaptability. Prior work established that nOPV2 is immunogenic in preclinical and clinical studies, and thus may enable complete poliovirus eradication.
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Affiliation(s)
- Ming Te Yeh
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Erika Bujaki
- National Institute for Biological Standards and Control (NIBSC), South Mimms, Herts EN6 3QG, UK
| | - Patrick T Dolan
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Matthew Smith
- National Institute for Biological Standards and Control (NIBSC), South Mimms, Herts EN6 3QG, UK
| | - Rahnuma Wahid
- Center for Vaccine Innovation and Access, PATH, Seattle, WA 98121, USA
| | - John Konz
- Center for Vaccine Innovation and Access, PATH, Seattle, WA 98121, USA
| | - Amy J Weiner
- Bill and Melinda Gates Foundation, Seattle, WA 98109, USA
| | | | - Pierre Van Damme
- Centre for the Evaluation of Vaccination, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp 2610, Belgium
| | - Ilse De Coster
- Centre for the Evaluation of Vaccination, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp 2610, Belgium
| | - Hilde Revets
- Centre for the Evaluation of Vaccination, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp 2610, Belgium
| | - Andrew Macadam
- National Institute for Biological Standards and Control (NIBSC), South Mimms, Herts EN6 3QG, UK.
| | - Raul Andino
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94158, USA.
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27
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Taniguchi M. Analysis Method of the Ion Current-Time Waveform Obtained from Low Aspect Ratio Solid-state Nanopores. ANAL SCI 2020; 36:161-165. [PMID: 31813895 DOI: 10.2116/analsci.19r009] [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] [Indexed: 11/23/2022]
Abstract
Low aspect ratio nanopores are expected to be applied to the detection of viruses and bacteria because of their high spatial resolution. Multiphysics simulations have revealed that the ion current-time waveform obtained from low aspect ratio nanopores contains information on not only the volume of viruses and bacteria, but also the structure, surface charge, and flow dynamics. Analysis using machine learning extracts information about these analytes from the ion current-time waveform. The combination of low aspect ratio nanopores, multiphysics simulation, and machine learning has made it possible to distinguish different types of viruses and bacteria with high accuracy.
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28
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Gao L, Yang Q, Wu P, Li F. Recent advances in nanomaterial-enhanced enzyme-linked immunosorbent assays. Analyst 2020; 145:4069-4078. [DOI: 10.1039/d0an00597e] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights functional roles of nanomaterials for advancing conventional ELISA assays by serving as substrate-alternatives, enzyme-alternatives, or non-enzyme amplifiers.
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Affiliation(s)
- Lu Gao
- Key laboratory of Green Chemistry & Technology of Ministry of Education
- College of chemistry
- Analytical & Testing Center
- Sichuan University
- Chengdu
| | - Qianfan Yang
- Key laboratory of Green Chemistry & Technology of Ministry of Education
- College of chemistry
- Analytical & Testing Center
- Sichuan University
- Chengdu
| | - Peng Wu
- Key laboratory of Green Chemistry & Technology of Ministry of Education
- College of chemistry
- Analytical & Testing Center
- Sichuan University
- Chengdu
| | - Feng Li
- Key laboratory of Green Chemistry & Technology of Ministry of Education
- College of chemistry
- Analytical & Testing Center
- Sichuan University
- Chengdu
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29
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Yu W, Li Y, Xie B, Ma M, Chen C, Li C, Yu X, Wang Z, Wen K, Tang BZ, Shen J. An Aggregation-Induced Emission-Based Indirect Competitive Immunoassay for Fluorescence "Turn-On" Detection of Drug Residues in Foodstuffs. Front Chem 2019; 7:228. [PMID: 31069213 PMCID: PMC6491695 DOI: 10.3389/fchem.2019.00228] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 03/22/2019] [Indexed: 12/31/2022] Open
Abstract
A new fluorescent "turn-on" probe-based immunosensor for detecting drug residues in foodstuffs was established by combining the mechanism of aggregation-induced emission (AIE) and an indirect competitive enzyme-linked immunosorbent assay (ELISA). In this study, a luminogen, with negligible fluorescence emission (TPE-HPro), aggregated in the presence of H2O2, and exhibited astrong yellow emission based on its AIE characteristics. This AIE process was further configured into an immunoassay for analyzing drug residues in foodstuffs. In this approach, glucose oxidase (GOx) was used as an enzyme label for the immunoassay and triggered GOx/glucose-mediated H2O2 generation, which caused oxidation of TPE-HPro and a "turn-on" fluorescence response at 540 nm. To quantitatively analyze the drug residues in foodstuffs, we used amantadine (AMD) as an assay model. By combining the AIE-active "turn-on" fluorescent signal generation mechanism with conventional ELISAs, quantifying AMD concentrations in chicken muscle samples was realized with an IC50 (50% inhibitory concentration) value of 0.38 ng/mL in buffer and a limited detection of 0.06 μg/kg in chicken samples. Overall, the conceptual integration of AIE with ELISA represents a potent and sensitive strategy that broadens the applicability of the AIE-based fluorometric assays.
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Affiliation(s)
- Wenbo Yu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ying Li
- Division of Life Science, Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, China
| | - Bing Xie
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Mingfang Ma
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chaochao Chen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chenglong Li
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xuezhi Yu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zhanhui Wang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Kai Wen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ben Zhong Tang
- Division of Life Science, Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, China
| | - Jianzhong Shen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
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30
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Liu D, Li X, Zhou J, Liu S, Tian T, Song Y, Zhu Z, Zhou L, Ji T, Yang C. A fully integrated distance readout ELISA-Chip for point-of-care testing with sample-in-answer-out capability. Biosens Bioelectron 2017; 96:332-338. [DOI: 10.1016/j.bios.2017.04.044] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/13/2017] [Accepted: 04/27/2017] [Indexed: 10/19/2022]
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31
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DeBlasio SL, Johnson RS, MacCoss MJ, Gray SM, Cilia M. Model System-Guided Protein Interaction Mapping for Virus Isolated from Phloem Tissue. J Proteome Res 2016; 15:4601-4611. [DOI: 10.1021/acs.jproteome.6b00715] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stacy L. DeBlasio
- Agricultural
Research Service, USDA, Ithaca, New York 14853, United States
- Boyce Thompson Institute for Plant Research, Ithaca, New York 14853, United States
| | - Richard S. Johnson
- Department
of Genome Sciences, University of Washington, Seattle Washington 98109, United States
| | - Michael J. MacCoss
- Department
of Genome Sciences, University of Washington, Seattle Washington 98109, United States
| | - Stewart M. Gray
- Agricultural
Research Service, USDA, Ithaca, New York 14853, United States
- Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
| | - Michelle Cilia
- Agricultural
Research Service, USDA, Ithaca, New York 14853, United States
- Boyce Thompson Institute for Plant Research, Ithaca, New York 14853, United States
- Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
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32
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Zhang L, Zhao W, Liu X, Wang G, Wang Y, Li D, Xie L, Gao Y, Deng H, Gao W. Site-selective in situ growth of fluorescent polymer-antibody conjugates with enhanced antigen detection by signal amplification. Biomaterials 2015; 64:2-9. [PMID: 26102329 DOI: 10.1016/j.biomaterials.2015.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/02/2015] [Accepted: 06/12/2015] [Indexed: 12/13/2022]
Abstract
This paper reports a new and general in situ methodology to grow fluorescent polymer conjugates from the interchain disulfide bridging sites of a monoclonal antibody. Atom transfer radical polymerization (ATRP) initiators were attached to a monoclonal antibody at its interchain disulfide bridging sites by disulfide re-bridging to yield a macroinitiator. Subsequent in situ ATRP of PEG-like monomers with dye-functionalized monomers from the macroinitiator formed antibody-polymer-dye conjugates with site-selectivity and tunable dye-to-antibody ratios. Notably, these conjugates can amplify antigen detection signal by reducing label-density dependent fluorescence quenching and by increasing dye-to-antibody ratios. The method developed may be applicable to a variety of antibodies, dyes and drugs to create a number of antibody-polymer-dye/drug conjugates for advanced diagnosis and therapy of diseases.
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Affiliation(s)
- Libin Zhang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Wenguo Zhao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Xinyu Liu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Guilin Wang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Yang Wang
- Sino Biological, Inc., 14 Zhonghe St. BDA, Beijing 100176, China
| | - Dong Li
- Sino Biological, Inc., 14 Zhonghe St. BDA, Beijing 100176, China
| | - Liangzhi Xie
- Sino Biological, Inc., 14 Zhonghe St. BDA, Beijing 100176, China
| | - Yan Gao
- Protein Chemistry Facility, School of Biological Sciences, Tsinghua University, Beijing 100084, China
| | - Haiteng Deng
- Protein Chemistry Facility, School of Biological Sciences, Tsinghua University, Beijing 100084, China
| | - Weiping Gao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China.
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33
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Siljo A, Bhat AI, Biju CN. Detection of Cardamom mosaic virus and Banana bract mosaic virus in cardamom using SYBR Green based reverse transcription-quantitative PCR. Virusdisease 2014; 25:137-41. [PMID: 24426323 PMCID: PMC3889244 DOI: 10.1007/s13337-013-0170-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 10/08/2013] [Indexed: 11/25/2022] Open
Abstract
Cardamom being perennial, propagated vegetatively, detecting viruses in planting material is important to check the spread of viruses through infected material. Thus development of effective and sensitive assay for detection of viruses is need of the time. In this view, assay for the detection of Cardamom mosaic virus (CdMV) and Banana bract mosaic virus (BBrMV), infecting cardamom was developed using SYBR Green one step reverse transcription-quantitative PCR (RT-qPCR). The RT-qPCR assay amplified all isolates of CdMV and BBrMV tested but no amplification was obtained with RNA of healthy plants. Recombinant plasmids carrying target virus regions corresponding to both viruses were quantified, serially diluted and used as standards in qPCR to develop standard curve to enable quantification. When tenfold serial dilutions of the total RNAs from infected plants were tested through RT-qPCR, the detection limit of the assay was estimated to be 16 copies for CdMV and 10 copies for BBrMV, which was approximately 1,000-fold higher than the conventional RT-PCR. The RT-qPCR assay was validated by testing field samples collected from different cardamom growing regions of India. This is the first report of RT-qPCR assay for the detection of CdMV and BBrMV in cardamom.
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Affiliation(s)
- A. Siljo
- />Division of Crop Protection, Indian Institute of Spices Research, Marikunnu, Kozhikode, 673012 Kerala India
| | - A. I. Bhat
- />Division of Crop Protection, Indian Institute of Spices Research, Marikunnu, Kozhikode, 673012 Kerala India
| | - C. N. Biju
- />Indian Institute of Spices Research, Cardamom Research Centre, Appangala, Heravanadu Post, Madikeri, 571 201 Karnataka India
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34
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Choudhary N, Roy A, Guillermo LM, Picton D, Wei G, Nakhla M, Levy L, Brlansky R. Immunodiagnosis of Citrus leprosis virus C using a polyclonal antibody to an expressed putative coat protein. J Virol Methods 2013; 193:548-53. [DOI: 10.1016/j.jviromet.2013.07.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 07/08/2013] [Accepted: 07/15/2013] [Indexed: 10/26/2022]
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35
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de la Rica R, Stevens MM. Plasmonic ELISA for the detection of analytes at ultralow concentrations with the naked eye. Nat Protoc 2013; 8:1759-64. [DOI: 10.1038/nprot.2013.085] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Roy A, Choudhary N, Guillermo LM, Shao J, Govindarajulu A, Achor D, Wei G, Picton DD, Levy L, Nakhla MK, Hartung JS, Brlansky RH. A novel virus of the genus Cilevirus causing symptoms similar to citrus leprosis. PHYTOPATHOLOGY 2013; 103:488-500. [PMID: 23268581 DOI: 10.1094/phyto-07-12-0177-r] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Citrus leprosis in Colombia was previously shown to be caused by cytoplasmic Citrus leprosis virus (CiLV-C). In 2011, enzyme-linked immunosorbent assay and reverse-transcription polymerase chain reaction (RT-PCR)-based diagnostic methods failed to identify CiLV-C from citrus samples with symptoms similar to citrus leprosis; however, virions similar to CiLV-C were observed in the cytoplasm of the symptomatic leaves by transmission electron microscopy. Furthermore, the causal organism was transmitted by the false spider mite, Brevipalpus phoenicis, to healthy citrus seedlings. A library of small RNAs was constructed from symptomatic leaves and used as the template for Illumina high-throughput parallel sequencing. The complete genome sequence and structure of a new bipartite RNA virus was determined. RNA1 (8,717 nucleotides [nt]) contained two open reading frames (ORFs). ORF1 encoded the replication module, consisting of five domains: namely, methyltransferase (MTR), cysteine protease-like, FtsJ-MTR, helicase (Hel), and RNA-dependent RNA polymerase (RdRp); whereas ORF2 encoded the putative coat protein. RNA2 (4,989 nt) contained five ORFs that encode the movement protein (MP) and four hypothetical proteins (p7, p15, p24, and p61). The structure of this virus genome resembled that of CiLV-C except that it contained a long 3' untranslated terminal region and an extra ORF (p7) in RNA2. Both the RNA1 and RNA2 of the new virus had only 58 and 50% nucleotide identities, respectively, with known CiLV-C sequences and, thus, it appears to be a novel virus infecting citrus. Phylogenetic analyses of the MTR, Hel, RdRp, and MP domains also indicated that the new virus was closely related to CiLV-C. We suggest that the virus be called Citrus leprosis virus cytoplasmic type 2 (CiLV-C2) and it should be unambiguously classified as a definitive member of the genus Cilevirus. A pair of CiLV-C2 genome-specific RT-PCR primers was designed and validated to detect its presence in citrus leprosis samples collected from the Casanare and Meta states in Colombia.
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37
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Zhang H, Li F, Dever B, Li XF, Le XC. DNA-mediated homogeneous binding assays for nucleic acids and proteins. Chem Rev 2012; 113:2812-41. [PMID: 23231477 DOI: 10.1021/cr300340p] [Citation(s) in RCA: 339] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hongquan Zhang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada T6G 2G3
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38
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Díaz AN, Sánchez FG, Díaz AFG, Baro EN, Algarra M, Aguilar A. Chemiluminescence Detection of 2,4,5-Trichlorophenoxy Acetic Acid in Apple Juice by Digital Image Analysis. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-011-9265-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Cha TG, Baker BA, Sauffer MD, Salgado J, Jaroch D, Rickus JL, Porterfield DM, Choi JH. Optical nanosensor architecture for cell-signaling molecules using DNA aptamer-coated carbon nanotubes. ACS NANO 2011; 5:4236-44. [PMID: 21520951 PMCID: PMC3178844 DOI: 10.1021/nn201323h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We report a novel optical biosensor platform using near-infrared fluorescent single-walled carbon nanotubes (SWNTs) functionalized with target-recognizing aptamer DNA for noninvasively detecting cell-signaling molecules in real time. Photoluminescence (PL) emission of aptamer-coated SWNTs is modulated upon selectively binding to target molecules, which is exploited to detect insulin using an insulin-binding aptamer (IBA) as a molecular recognition element. We find that nanotube PL quenches upon insulin recognition via a photoinduced charge transfer mechanism with a quenching rate of k(q) = 5.85 × 10(14) M(-1) s(-1) and a diffusion-reaction rate of k(r) = 0.129 s(-1). Circular dichroism spectra reveal for the first time that IBA strands retain a four-stranded, parallel guanine quadruplex conformation on the nanotubes, ensuring target selectivity. We demonstrate that these IBA-functionalized SWNT sensors incorporated in a collagen extracellular matrix (ECM) can be regenerated by removing bound analytes through enzymatic proteolysis. As proof-of-concept, we show that the SWNT sensors embedded in the ECM promptly detect insulin secreted by cultured pancreatic INS-1 cells stimulated by glucose influx and report a gradient contour of insulin secretion profile. This novel design enables new types of label-free assays and noninvasive, in situ, real-time detection schemes for cell-signaling molecules.
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Affiliation(s)
- Tae-Gon Cha
- School of Mechanical Engineering, Bindley Bioscience Center, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Benjamin A. Baker
- School of Mechanical Engineering, Bindley Bioscience Center, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - M. Dane Sauffer
- School of Mechanical Engineering, Bindley Bioscience Center, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Janette Salgado
- School of Mechanical Engineering, Bindley Bioscience Center, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - David Jaroch
- Weldon School of Biomedical Engineering, Agriculture and Biological Engineering, Physiological Sensing Facility, Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jenna L. Rickus
- Weldon School of Biomedical Engineering, Agriculture and Biological Engineering, Physiological Sensing Facility, Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - D. Mashall Porterfield
- Weldon School of Biomedical Engineering, Agriculture and Biological Engineering, Physiological Sensing Facility, Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jong Hyun Choi
- School of Mechanical Engineering, Bindley Bioscience Center, Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States
- Jong Hyun Choi : (Tel) +1-765-496-3562, (Fax) +1-765-496-8299,
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40
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Kishore K, Rahman H, Kalita H, Pandey B, Monika N. Prevalence of Citrus tristeza virus in Mandarin of Sikkim Himalayan Region. INDIAN JOURNAL OF VIROLOGY : AN OFFICIAL ORGAN OF INDIAN VIROLOGICAL SOCIETY 2010; 21:140-3. [PMID: 23637493 DOI: 10.1007/s13337-010-0019-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 12/21/2010] [Indexed: 11/29/2022]
Abstract
The assessment of Citrus tristeza virus incidence in mandarin of Sikkim, involving sampling techniques, was estimated by DAS-ELISA. Mandarin orchards had high CTV incidence (46.32%), however, differential prevalence with regard to age of plant and location was observed. The CTV prevalence was relatively high in older orchards (51.01%) than that of younger ones (40.80%). Under all the plant age groups, south district had the highest CTV incidence (52.50%) and east district had the lowest (37.71%). The spatial distribution of CTV in plants indicates high concentration in twig followed by leaf tissue, however, stem had relatively less concentration. High aphid infestation was observed in all mandarin growing groves with the maximum in south district and minimum in east district. Taxoptera citricida was the predominating aphid species followed by T. aurantii, however, Aphis spp population was significantly less. Aphid infestation and CTV prevalence were positively and significantly correlated.
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Affiliation(s)
- Kundan Kishore
- ICAR Research Complex for NEH Region, Sikkim Centre, Tadong, Gangtok, 737102 Sikkim India
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Lin PC, Chen SH, Wang KY, Chen ML, Adak AK, Hwu JRR, Chen YJ, Lin CC. Fabrication of oriented antibody-conjugated magnetic nanoprobes and their immunoaffinity application. Anal Chem 2010; 81:8774-82. [PMID: 19874051 DOI: 10.1021/ac9012122] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In an attempt to fabricate highly active immunoprobes for serum biomarker detection, we report a simple and effective method for site-specific and self-oriented immobilization of antibodies on magnetic nanoparticles (MNPs). Through boronate formation, the carbohydrate moiety within the constant domain, Fc, of the antibody can be specifically and covalently linked to a boronic acid-functionalized MNP (BA@MNP) without hindering the antigen binding domain, Fab. The performance was evaluated by immunoaffinity extraction of multiple serum antigens. Compared with the random immobilization of antibody on a MNP, the antibody self-oriented immunoprobe provides long-term stability (>2 months) and 5-fold extraction efficiency. It also provides 5-fold improved sensitivity at a low nM range (0.4 nM), presumably through enhanced antibody@MNP activity. In addition, false-positive detections arising from nonspecific binding can be completely minimized by effective surface protection using concentration-dependent dextran blocking. Compared with conventional antibody site-specific immobilization through protein G, this new BA-mediated covalent antibody immobilization provides interference-free extraction resulting from noncovalent immobilization of antibody by protein G. The new immunoassay was applied in comparative profiling of serum amyloid P (SAP), serum amyloid A (SAA), and C-reactive protein (CRP) in human serum. Our triple immunoassay revealed a distinct pattern among normal patients, patients with cancer, and patients with cardiovascular disease. Using the previously reported quantization capability of the MALDI MS readout, we expect that this site-specific immunonanoprobe-based immunoassay can be highly active, rapid, and accurate in nanodiagnosis.
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Affiliation(s)
- Po-Chiao Lin
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan
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Peroni LA, Lorencini M, dos Reis JRR, Machado MA, Stach-Machado DR. Differential diagnosis of Brazilian strains of Citrus tristeza virus by epitope mapping of coat protein using monoclonal antibodies. Virus Res 2009; 145:18-25. [DOI: 10.1016/j.virusres.2009.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2008] [Revised: 05/14/2009] [Accepted: 05/31/2009] [Indexed: 10/20/2022]
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Alfenas-Zerbini P, Maia IG, Fávaro RD, Cascardo JCM, Brommonschenkel SH, Zerbini FM. Genome-wide analysis of differentially expressed genes during the early stages of tomato infection by a potyvirus. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2009; 22:352-61. [PMID: 19245329 DOI: 10.1094/mpmi-22-3-0352] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Plant responses against pathogens cause up- and downward shifts in gene expression. To identify differentially expressed genes in a plant-virus interaction, susceptible tomato plants were inoculated with the potyvirus Pepper yellow mosaic virus (PepYMV) and a subtractive library was constructed from inoculated leaves at 72 h after inoculation. Several genes were identified as upregulated, including genes involved in plant defense responses (e.g., pathogenesis-related protein 5), regulation of the cell cycle (e.g., cytokinin-repressed proteins), signal transduction (e.g., CAX-interacting protein 4, SNF1 kinase), transcriptional regulators (e.g., WRKY and SCARECROW transcription factors), stress response proteins (e.g., Hsp90, DNA-J, 20S proteasome alpha subunit B, translationally controlled tumor protein), ubiquitins (e.g., polyubiquitin, ubiquitin activating enzyme 2), among others. Downregulated genes were also identified, which likewise display identity with genes involved in several metabolic pathways. Differential expression of selected genes was validated by macroarray analysis and quantitative real-time polymerase chain reaction. The possible roles played by some of these genes in the viral infection cycle are discussed.
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Affiliation(s)
- Poliane Alfenas-Zerbini
- Dep. de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil.
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Iracheta-Cárdenas MM, Metheney P, Polek ML, Manjunath KL, Lee RF, Rocha-Peña MA. Serological Detection of Citrus tristeza virus with Antibodies Developed to the Recombinant Coat Protein. PLANT DISEASE 2009; 93:11-16. [PMID: 30764263 DOI: 10.1094/pdis-93-1-0011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Antibodies specific for the recombinant coat protein (rCP) of the p25 gene of Citrus tristeza virus (CTV) were developed in goats and rabbits and further evaluated as a complete kit for the detection of the virus using healthy and CTV-infected tissue. The combination of goat T1 used as primary (coating) and rabbit C3 as intermediate (detecting) rCP antibodies reacted efficiently, with optical density at 405 nm (OD405) values between 0.250 and 2.000 with samples from an international collection of diverse CTV isolates. The CTV isolates tested cause a broad spectrum of disease syndromes in different citrus hosts. The OD405 values for healthy tissue were less than 0.100. Likewise, the combination of goat T1 and rabbit C3 rCP antibodies gave consistent results for CTV-positive and -negative sample discrimination when directly compared with the Central California Tristeza Eradication Agency (CCTEA) antibodies used for large-scale CTV detection and a commercially available CTV serological detection kit. The combination of goat T1 and rabbit C3 rCP antibodies showed its suitability for large-scale indexing with samples collected in commercial groves as part of the CCTEA's regular monitoring program. The evaluation included 41,195 samples from 301 commercial groves from districts 1, 2, and 3. In total, 26 trees (0.063%) were found to be CTV positive using the T1/C3 rCP antibody combination. Results of this research provide evidence that rCP antibodies can be efficiently used for both capturing and detecting CTV antigens in double-antibody sandwich indirect enzyme-linked immunosorbent assay.
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Affiliation(s)
- M M Iracheta-Cárdenas
- Instituto de Biotecnología, Facultad de Ciencias Biológicas, UANL, Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza, Nuevo León 66450 México
| | - P Metheney
- Central California Tristeza Eradication Agency
| | - M L Polek
- California Department of Food and Agriculture, Tulare 93274
| | - K L Manjunath
- United States Department of Agriculture-Agricultural Research Service, National Clonal Germplasm Repository for Citrus and Dates, Riverside, CA, 92507
| | - R F Lee
- United States Department of Agriculture-Agricultural Research Service, National Clonal Germplasm Repository for Citrus and Dates, Riverside, CA, 92507
| | - M A Rocha-Peña
- INIFAP/UANL, Unidad de Investigación en Biología Celular y Molecular, Apartado Postal 128-F, Cd. Universitaria, San Nicolás de los Garza, Nuevo León 66450 México
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Vasudevan A, Oh TK, Park JS, Lakshmi SV, Choi BK, Kim SH, Lee HJ, Ji J, Kim JH, Ganapathi A, Kim SC, Choi CW. Characterization of resistance mechanism in transgenic Nicotiana benthamiana containing Turnip crinkle virus coat protein. PLANT CELL REPORTS 2008; 27:1731-40. [PMID: 18704429 DOI: 10.1007/s00299-008-0595-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2008] [Revised: 06/30/2008] [Accepted: 07/30/2008] [Indexed: 05/26/2023]
Abstract
Two transgenic lines, of Nicotiana benthamiana expressing Turnip crinkle virus (TCV)-coat protein (CP) gene with contrasting phenotype, the highest (#3) and the lowest (#18) CP expressers, were selected and challenged with the homologous TCV. The former, the highest expresser, showed nearly five times more CP expression than the latter. Progenies of #3 and #18 lines showed 30 and 100% infection rates, respectively. The infected progenies of #3 line showed mild and delayed symptom with TCV. This is a coat protein-mediated resistance (CP-MR), and its resistance level is directly proportional to CP transgene expression. However, CP-MR of the transgenic plants was specific only for TCV but not for heterologous viruses. Newly growing leaves of those infected progenies of #3 line did not show any visible symptoms at 4-week post-inoculation (wpi) with TCV, suggesting a reversal from infection. This was confirmed by RT-PCR analysis with the disappearance of the target at 4 wpi. This is a case of RNA-mediated resistance, and a threshold level of transgene expression may be needed to achieve the silent state. To confirm the RNA silencing, we infiltrated Agrobacterium carrying TCV-CP into leaves of progenies of #3 and performed RT-PCR analysis. The results indicate that TCV-CP's suppressor activity against RNA silencing itself can be silenced by the homologous expression of TCV-CP in the transgenic plants. The transgenic plants containing TCV-CP seem to be a model system to study viral protection mediated by a combination of protein and RNA silencing.
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Affiliation(s)
- Ayyappan Vasudevan
- Department of Biology and Medicinal Science, Pai Chai University, Daejeon, South Korea
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Assessment of the diagnostic potential of Immmunocapture-PCR and Immuno-PCR for Citrus Variegated Chlorosis. J Microbiol Methods 2008; 75:302-7. [DOI: 10.1016/j.mimet.2008.06.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 06/30/2008] [Accepted: 06/30/2008] [Indexed: 11/23/2022]
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Studying non-covalent enzyme carbohydrate interactions by STD NMR. Carbohydr Res 2008; 343:2153-61. [DOI: 10.1016/j.carres.2007.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Revised: 12/03/2007] [Accepted: 12/20/2007] [Indexed: 11/20/2022]
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Castillo-Urquiza GP, Maia FG, Carvalho MG, Pinto CM, Zerbini FM. Caracterização de um isolado do Bean rugose mosaic virus (BRMV) de Minas Gerais e estimativa de perdas em feijoeiro em infecção simples ou em conjunto com o BCMV. ACTA ACUST UNITED AC 2006. [DOI: 10.1590/s0100-41582006000500004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Plantas de feijão-vagem do cultivar Novirex apresentando mosaico e enrolamento de vagens, sem deformação foliar evidente, foram coletadas em 2002 em Cordisburgo, MG. Estudos preliminares identificaram o vírus como um isolado do Bean rugose mosaic virus (BRMV). Este trabalho relata a caracterização do isolado, por meio de produção e avaliação de anti-soro, determinação da gama de hospedeiros, estudo da transmissão do vírus por besouros crisomelídeos e estimativa de perdas em feijoeiro como resultado de infecção isolada ou em conjunto com o Bean common mosaic virus (BCMV). O roteiro adotado para purificação possibilitou a obtenção de vírus purificado em rendimento satisfatório para a produção de anti-soro. A titulação dos anti-soros foi realizada por ELISA indireto, obtendo-se reações positivas com a diluição máxima testada (1:70.000). Das 22 espécies vegetais utilizadas na gama de hospedeiros, foram infectadas plantas de Chenopodium quinoa e alguns cultivares de feijão e soja, conforme esperado para o BRMV. O isolado de BRMV foi transmitido pelo besouro crisomelídeo Cerotoma arcuata a uma taxa de 33,3%. A infecção simples de feijão 'Ouro Negro' e de feijão-vagem 'Novirex' levou a uma redução do peso das vagens por planta de 3,4% e 84,9%, respectivamente. Infecção mista do BRMV com o BCMV levou a uma redução do peso de vagens por planta de até 70,1% para 'Novirex' e de até 90,8% para 'Ouro Negro'.
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Seo YS, Rojas MR, Lee JY, Lee SW, Jeon JS, Ronald P, Lucas WJ, Gilbertson RL. A viral resistance gene from common bean functions across plant families and is up-regulated in a non-virus-specific manner. Proc Natl Acad Sci U S A 2006; 103:11856-61. [PMID: 16880399 PMCID: PMC1567666 DOI: 10.1073/pnas.0604815103] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2006] [Indexed: 01/18/2023] Open
Abstract
Genes involved in a viral resistance response in common bean (Phaseolus vulgaris cv. Othello) were identified by inoculating a geminivirus reporter (Bean dwarf mosaic virus expressing the green fluorescent protein), extracting RNA from tissue undergoing the defense response, and amplifying sequences with degenerate R gene primers. One such gene (a TIR-NBS-LRR gene, RT4-4) was selected for functional analysis in which transgenic Nicotiana benthamiana were generated and screened for resistance to a range of viruses. This analysis revealed that RT4-4 did not confer resistance to the reporter geminivirus; however, it did activate a resistance-related response (systemic necrosis) to seven strains of Cucumber mosaic virus (CMV) from pepper or tomato, but not to a CMV strain from common bean. Of these eight CMV strains, only the strain from common bean systemically infected common bean cv. Othello. Additional evidence that RT4-4 is a CMV R gene came from the detection of resistance response markers in CMV-challenged leaves of RT4-4 transgenic plants, and the identification of the CMV 2a gene product as the elicitor of the necrosis response. These findings indicate that RT4-4 functions across two plant families and is up-regulated in a non-virus-specific manner. This experimental approach holds promise for providing insights into the mechanisms by which plants activate resistance responses against pathogens.
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Affiliation(s)
| | | | - Jung-Youn Lee
- Section of Plant Biology, University of California, Davis, CA 95616
| | | | | | | | - William J. Lucas
- Section of Plant Biology, University of California, Davis, CA 95616
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Nascimento AVS, Santana EN, Braz ASK, Alfenas PF, Pio-Ribeiro G, Andrade GP, de Carvalho MG, Murilo Zerbini F. Cowpea aphid-borne mosaic virus (CABMV) is widespread in passionfruit in Brazil and causes passionfruit woodiness disease. Arch Virol 2006; 151:1797-809. [PMID: 16596328 DOI: 10.1007/s00705-006-0755-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2005] [Accepted: 02/24/2006] [Indexed: 11/27/2022]
Abstract
Leaf samples of yellow passionfruit (Passiflora edulis f. flavicarpa) displaying fruit woodiness symptoms were collected in seven Brazilian states and the Federal District. Viral infection was confirmed by host range and ELISA, and fourteen viral isolates were obtained. All isolates were capable of infecting several leguminous host species, although differences in symptom severity were noticeable. Woodiness symptoms were reproduced in yellow passionfruit, and mosaic symptoms were induced in common bean. All isolates infected cowpea, reported as a non-host of passion fruit woodiness virus (PWV). Indirect ELISA demonstrated that all isolates were serologically related to each other and also to cowpea aphid-borne mosaic virus (CABMV). The complete sequence of the capsid protein was determined for all isolates. Comparison of these sequences with those of other potyviruses indicated the highest identity with CABMV isolates (85 to 94%). Identity with PWV isolates ranged from 54 to 70%. Phylogenetic analysis grouped all of the Brazilian isolates in a monophyletic cluster with the CABMV isolates, clearly distinct from the PWV isolates. Furthermore, this analysis demonstrated that a group of previously characterized isolates from Brazil that had been designated as PWV should be reclassified as CABMV. Together, these results provide unequivocal evidence that, in Brazil, passionfruit woodiness disease is primarily caused by CABMV. The presence of PWV in Brazil has yet to be confirmed.
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Affiliation(s)
- A V S Nascimento
- Departamento de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, Brazil
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