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Kapoor T, Murray L, Kuvaldina M, Jiang CS, Peace AA, Agudelo M, Jurado A, Robbiani DF, Klemens O, Lattwein E, Sabalza M, Fallon BA, MacDonald MR. Prevalence of Powassan Virus Seropositivity Among People with History of Lyme Disease and Non-Lyme Community Controls in the Northeastern United States. Vector Borne Zoonotic Dis 2024; 24:226-236. [PMID: 38436222 PMCID: PMC11035843 DOI: 10.1089/vbz.2022.0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Introduction: Lyme disease (LD) affects ∼476,000 people each year in the United States. Symptoms are variable and include rash and flu-like symptoms. Reasons for the wide variation in disease outcomes are unknown. Powassan virus (POWV) is a tick-borne flavivirus that causes disease ranging from asymptomatic infection to encephalitis, neurologic damage, and death. POWV and LD geographic case distributions overlap, with Ixodes species ticks as the common vectors. Clinical ramifications of coinfection or sequential infection are unknown. Objectives: This study's primary objective was to determine the prevalence of POWV-reactive antibodies in sera samples collected from previously studied cohorts of individuals with self-reported LD history residing in the Northeastern United States. As a secondary objective, we studied clinical differences between people with self-reported LD history and low versus high POWV antibody levels. Methods: We used an enzyme-linked immunosorbent assay (ELISA) to quantify IgG directed at the POWV envelope (E) protein domain III in 538 samples from individuals with self-reported LD history and 16 community controls. The samples were also tested with an ELISA assay to quantify IgG directed at the POWV NS1 protein. Results: The percentage of individuals with LD history and possible evidence of POWV exposure varied depending on the assay utilized. We found no significant difference in clinical symptoms between those with low or high POWV IgG levels in the in-house assay. Congruence of the EDIII and NS1 assays was low with only 12% of those positive in the in-house EDIII ELISA testing positive in the POWV NS1 ELISA. Conclusions: The results highlight the difficulty in flavivirus diagnostic testing, particularly in the retrospective detection of flavivirus exposure. The findings suggest that a prospective study with symptomatic patients using approved clinical testing is necessary to address the incidence and clinical implications of LD and POWV co-infection or sequential infection.
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Affiliation(s)
- Tania Kapoor
- Laboratory of Molecular Immunology, The Rockefeller University, New York, New York, USA
| | - Lilly Murray
- Department of Psychiatry, Columbia University, and New York State Psychiatric Institute, New York, New York, USA
| | - Maria Kuvaldina
- Department of Psychiatry, Columbia University, and New York State Psychiatric Institute, New York, New York, USA
| | - Caroline S. Jiang
- Department of Hospital Biostatistics, The Rockefeller University, New York, New York, USA
| | - Avery A. Peace
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, New York, USA
| | - Marianna Agudelo
- Laboratory of Molecular Immunology, The Rockefeller University, New York, New York, USA
| | - Andrea Jurado
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, New York, USA
| | - Davide F. Robbiani
- Laboratory of Molecular Immunology, The Rockefeller University, New York, New York, USA
| | - Oliver Klemens
- Institute for Experimental Immunology, affiliated to EUROIMMUN Medizinische Labordiagnostika AG, Lübeck, Germany
| | - Erik Lattwein
- Institute for Experimental Immunology, affiliated to EUROIMMUN Medizinische Labordiagnostika AG, Lübeck, Germany
| | | | - Brian A. Fallon
- Department of Psychiatry, Columbia University, and New York State Psychiatric Institute, New York, New York, USA
| | - Margaret R. MacDonald
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, New York, USA
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Borko TL, Baxter R, Cabrera-Martinez B, Thiruppathi E, Sabalza M, Venkataraman I, Selva S, Rester C, Sillau S, Pastula DM, Bennett JL, Alvarez E, Gross R, Shah A, Kammeyer R, Corboy JR, Kedl RM, Hsieh EWY, Piquet AL. SARS-CoV-2 mRNA vaccination induces an antigen-specific T cell response correlating with plasma interferon-gamma in B cell depleted patients. J Neuroimmunol 2023; 383:578192. [PMID: 37666038 PMCID: PMC10863651 DOI: 10.1016/j.jneuroim.2023.578192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/06/2023] [Accepted: 08/27/2023] [Indexed: 09/06/2023]
Abstract
Emerging evidence is encouraging and suggests that a substantial proportion of patients without antibody responses (due to anti-CD20 therapy or other etiologies) to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) vaccines develop T cell responses. However, antigen-specific T cellular responses are notoriously difficult to assess clinically, given the lack of such assays under satisfactory CAP/CLIA regulation, and the laborious nature of the flow cytometric assessment. To evaluate the ability to apply a clinically feasible assay to measure T cellular responses to SARS-CoV-2 mRNA vaccination, we compared flow cytometric and enzyme-linked immunosorbent assay (ELISA) based assays in 24 participants treated with anti-CD20 therapy. T cellular activation (CD69 + CD137+ surface expression, i.e., activation induced markers [AIM]) and intracellular interferon gamma (INFγ) production via flow cytometry was compared to plasma Interferon Gamma Release Assay (IGRA) via ELISA. Plasma INFγ production measured by IGRA correlated with the percent of INFγ-producing AIM positive T cells, supporting the use of IGRA assay as a robust assessment of T cellular response to the SARS-CoV-2 vaccine for B-cell depleted patients that is clinically feasible, time efficient, and cost effective.
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Affiliation(s)
- Tyler L Borko
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Ryan Baxter
- Department of Immunology & Microbiology, University of Colorado Anschutz School of Medicine, United States of America
| | - Berenice Cabrera-Martinez
- Department of Immunology & Microbiology, University of Colorado Anschutz School of Medicine, United States of America
| | | | - Maite Sabalza
- Scientific Affairs, EUROIMMUN, United States of America
| | | | - Sean Selva
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Cody Rester
- Department of Immunology & Microbiology, University of Colorado Anschutz School of Medicine, United States of America
| | - Stefan Sillau
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Daniel M Pastula
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Jeffrey L Bennett
- Departments of Neurology and Ophthalmology, Programs in Neuroscience and Immunology, University of Colorado Anschutz School of Medicine, United States of America
| | - Enrique Alvarez
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Robert Gross
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Anna Shah
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Ryan Kammeyer
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - John R Corboy
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America
| | - Ross M Kedl
- Department of Immunology & Microbiology, University of Colorado Anschutz School of Medicine, United States of America
| | - Elena W Y Hsieh
- Department of Immunology & Microbiology, University of Colorado Anschutz School of Medicine, United States of America; Department of Pediatrics, Section of Allergy and Immunology, University of Colorado Anschutz School of Medicine, United States of America
| | - Amanda L Piquet
- Department of Neurology, University of Colorado Anschutz School of Medicine, United States of America.
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Heckler I, Sabalza M, Bojmehrani A, Venkataraman I, Thompson C. The need for fast and accurate detection of dermatomycosis. Med Mycol 2023; 61:7093406. [PMID: 36990677 DOI: 10.1093/mmy/myad037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/10/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Dermatomycosis of the hair, skin or nails are one of the most common fungal infection worldwide. Beyond permanent damage to the affected area, the risk of severe dermatomycosis in immunocompromised people can be life-threatening. The potential risk of delayed or improper treatment highlights the need for a rapid and accurate diagnosis. However, with traditional methods of fungal diagnostics such as culture, a diagnosis can take several weeks. Alternative diagnostic technologies have been developed which allow for an appropriate and timely selection of an antifungal treatment, preventing nonspecific over-the-counter self-medication. Such techniques include molecular methods such as PCR, real-time PCR, DNA microarray, next-generation sequencing, in addition to matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry. Molecular methods can help close the 'diagnostic gap' observed with traditional cultures and microscopy and allow for a rapid detection of dermatomycosis with increased sensitivity and specificity.
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Affiliation(s)
- Ilana Heckler
- EUROIMMUN US, 1 Bloomfield Ave, Mountain Lakes, NJ 07046
| | - Maite Sabalza
- EUROIMMUN US, 1 Bloomfield Ave, Mountain Lakes, NJ 07046
| | | | | | - Curtis Thompson
- CTA Pathology and Departments of Dermatology and Pathology, Oregon Health and Science University, Portland, Oregon, USA
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Thakkar A, Pradhan K, Duva B, Carreno JM, Sahu S, Thiruthuvanathan V, Campbell S, Gallego S, Bhagat TD, Rivera J, Choudhary G, Olea R, Sabalza M, Shapiro LC, Lee M, Quinn R, Mantzaris I, Chu E, Will B, Pirofski LA, Krammer F, Verma AK, Halmos B. Study of efficacy and longevity of immune response to 3 rd and 4 th doses of COVID-19 vaccines in patients with cancer: a single arm clinical trial. eLife 2023; 12:83694. [PMID: 36975207 PMCID: PMC10129324 DOI: 10.7554/elife.83694] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 03/05/2023] [Indexed: 03/29/2023] Open
Abstract
Background: Cancer patients show increased morbidity with COVID-19 and need effective immunization strategies. Many healthcare regulatory agencies recommend administering 'booster' doses of COVID-19 vaccines beyond the standard 2-dose series, for this group of patients. Therefore, studying the efficacy of these additional vaccine doses against SARS-CoV-2 and variants of concern is of utmost importance in this immunocompromised patient population. Methods: We conducted a prospective single arm clinical trial enrolling patients with cancer that had received two doses of mRNA or one dose of AD26.CoV2.S vaccine and administered a 3rd dose of mRNA vaccine. We further enrolled patients that had no or low responses to three mRNA COVID vaccines and assessed the efficacy of a 4th dose of mRNA vaccine. Efficacy was assessed by changes in anti-spike antibody, T-cell activity and neutralization activity were again assessed at baseline and 4 weeks. Results: We demonstrate that a 3rd dose of COVID-19 vaccine leads to seroconversion in 57% of patients that were seronegative after primary vaccination series. The immune response is durable as assessed by anti-S antibody titers, T-cell activity and neutralization activity against wild-type SARS-CoV2 and BA1.1.529 at 6 months of follow up. A subset of severely immunocompromised hematologic malignancy patients that were unable to mount an adequate immune response (titer <1000 AU/mL) after the 3rd dose and were treated with a 4th dose in a prospective clinical trial which led to adequate immune-boost in 67% of patients. Low baseline IgM levels and CD19 counts were associated with inadequate seroconversion. Booster doses induced limited neutralization activity against the Omicron variant. Conclusions: These results indicate that 3rd dose of COVID vaccine induces durable immunity in cancer patients and an additional dose can further stimulate immunity in a subset of patients with inadequate response. Funding: Leukemia lymphoma society, National Cancer Institute. Clinical trial identifier: NCT05016622.
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Affiliation(s)
- Astha Thakkar
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Kith Pradhan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, United States
| | - Benjamin Duva
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Juan Manuel Carreno
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Srabani Sahu
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | | | - Sean Campbell
- Department of Pathology, Montefiore Medical Center, Bronx, United States
| | - Sonia Gallego
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Tushar D Bhagat
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Johanna Rivera
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Gaurav Choudhary
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Raul Olea
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | | | - Lauren C Shapiro
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Matthew Lee
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Ryann Quinn
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Ioannis Mantzaris
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Edward Chu
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Britta Will
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Liise-Anne Pirofski
- Department of Medicine, Albert Einstein College of Medicine, Bronx, United States
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Amit K Verma
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
| | - Balazs Halmos
- Department of Oncology, Albert Einstein College of Medicine, Bronx, United States
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5
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Borko TL, Selva S, Baxter R, Cabrera-Martinez B, Rester C, Sillau S, Pastula DM, Sabalza M, Venkataraman I, Thiruppathi E, Bennett JL, Alvarez E, Gross R, Shah A, Kammeyer R, Vollmer TL, Kedl R, Corboy JR, Hsieh E, Piquet AL. An Observational Study on the Humoral and Cellular Immune Response to SARS-CoV-2 mRNA Vaccination in Multiple Sclerosis and Other Autoimmune Neurological Disorders Treated With Anti-CD20 Therapies. Neurology 2022. [DOI: 10.1212/01.wnl.0000903428.98962.0a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
ObjectiveTo assess adaptive immunity to SARS-CoV-2 in anti-CD20 treated individuals with mRNA vaccination.BackgroundAnti-CD20 therapies attenuate humoral responses to vaccines. However, their effect on T cell responses is less clear. We examined B and T cell responses following COVID-19 vaccination in patients receiving anti-CD20 therapy for multiple sclerosis (MS) and other autoimmune inflammatory neurologic diseases (AINDs, e.g., autoimmune encephalitis, stiff person syndrome, etc.).Design/MethodsMS and AIND patients on anti-CD20 therapies were prospectively enrolled for longitudinal analysis of antibody and T cell responses after a 3rd COVID-19 vaccination. Serum antibodies against the receptor-binding domain of the S1 spike protein (RBD-S1 IgG), neutralizing antibodies, and SARS-CoV-2 CD8 T cell responses, using activation-induced markers (AIM) and INF-γ release assays (EUROIMMUN, Germany), were measured at various time points including pre-vaccination, post initial vaccination series, and 4 and 12 weeks after 3rd dose.ResultsThirty-four MS and AIND participants are enrolled. Results for these patients (mean age 52 years-old, 79% female, 21 Pfizer, 13 Moderna) demonstrated attenuated RBD IgG antibody responses. However, a robust CD8 T cell response was observed, following a two-dose series, compared to non-immunosuppressed, age-matched vaccinated controls or unvaccinated with severe SARS-CoV-2 infection (p = 0.01). T cell response was sustained long-term (>12 weeks post 3rd dose) in all 11 anti-CD20 patients analyzed thus far. Collections are completed for all participants at 12 weeks and analysis to be completed by 05/15/22. Further analysis includes correlation of the INF- γ release assay compared to RBD-CD8 T cell response detected by AIM assay.ConclusionsResults suggest that patients treated with anti-CD20 therapy generate a robust CD8 T cell response to SARS-CoV-2 mRNA after three doses but remain with attenuated humoral immune responses. Our observational study will provide important data to guide vaccine management in patients on or anticipating anti-CD20 therapy.
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6
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Henry BM, Benoit SW, Lippi G, Sabalza M, Venkataraman I, Geisler D, Freeman MC, Rapsinski GJ, Wheeler SE. False-Positive Rates in Pediatric SARS-CoV-2 Serology Testing. Am J Clin Pathol 2022; 157:314-316. [PMID: 34480168 PMCID: PMC8499940 DOI: 10.1093/ajcp/aqab118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 06/09/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
| | | | | | | | | | - Daniel Geisler
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | | | - Sarah E Wheeler
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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7
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Sabalza M, Heckler I, Elhage A, Venkataraman I, Henry B. COVID-19: Testing Landscape Post-Infection, -Vaccination, and Future Perspectives. Viral Immunol 2022; 35:5-14. [PMID: 35020523 DOI: 10.1089/vim.2021.0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
On March 11, 2020, the World Health Organization declared the coronavirus disease 2019 (COVID-19) outbreak a global pandemic. Although molecular testing remains the gold standard for COVID-19 diagnosis, serological testing enables the evaluation of the immune response to severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection and vaccination, and can be used to assess community viral spread. This review summarizes and analyzes the current landscape of SARS-CoV-2 testing in the United States and includes guidance on both when and why it is important to use direct pathogen detection and/or serological testing. The usefulness of monitoring humoral and cellular immune responses in infected and vaccinated patients is also addressed. Finally, this review considers current challenges, future perspectives for SARS-CoV-2 testing, and how diagnostics are being adapted as the virus evolves.
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Affiliation(s)
| | | | - Aya Elhage
- EUROIMMUN US, Mountain Lakes, New Jersey, USA
| | | | - Brandon Henry
- Clinical Laboratory, Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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8
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Castro T, Sabalza M, Barber C, Abrams W, Da Costa AC, De Pádua Milagres FA, Braz-Silva PH, Malamud D, Gallottini M. Rapid diagnosis of Zika virus through saliva and urine by Loop-mediated isothermal amplification (LAMP). J Oral Microbiol 2018; 10:1510712. [PMID: 30202506 PMCID: PMC6127837 DOI: 10.1080/20002297.2018.1510712] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/30/2018] [Accepted: 08/02/2018] [Indexed: 01/09/2023] Open
Abstract
Background: Zika virus (ZIKV) is a single-stranded RNA virus and member of the Flaviviridae family. Recent studies have reported that saliva can be an important alternative to detect ZIKV. Saliva requires less processing than blood greatly simplifying the assay. Loop-mediated Isothermal Amplification (LAMP) is a rapid assay that detects nucleic acids, including ZIKV RNA. Aim: The aim of this study was to evaluate the efficacy of saliva and urine to diagnose ZIKV infection in subjects during the acute phase, through ZIKV RNA detection by LAMP. Method: A total of 131 samples (68 saliva and 63 urine samples) from 69 subjects in the acute phase of ZIKV infection, and confirmed positive for ZIKV by blood analysis through real time-PCR, were collected and analyzed by Reverse Transcriptase Loop-mediated Isothermal Amplification (RT-LAMP). Results: From the 68 saliva samples, 45 (66.2%) were positive for ZIKV with an average time to positivity (Tp) of 13.5 min, and from the 63 urine samples, 25 (39.7%) were positive with the average Tp of 15.8 min. Saliva detected more samples (p = 0.0042) and had faster Tp (p = 0.0176) as compared with urine. Conclusion: Saliva proved to be a feasible alternative to diagnose ZIKV infection during the acute phase by LAMP.
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Affiliation(s)
- Talita Castro
- Stomatology Department, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil
| | - Maite Sabalza
- Department of Basic Science and Craniofacial Biology, College of Dentistry, New York University, New York, NY, USA
| | - Cheryl Barber
- Department of Basic Science and Craniofacial Biology, College of Dentistry, New York University, New York, NY, USA
| | - William Abrams
- Department of Basic Science and Craniofacial Biology, College of Dentistry, New York University, New York, NY, USA
| | - Antonio Charlys Da Costa
- Laboratory of Medical Research, Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Flavio Augusto De Pádua Milagres
- Epidemiological Surveillance and Infectious Diseases, Secretary of Health of Tocantins and Federal University of Tocantins, Palmas, TO, Brazil
| | - Paulo Henrique Braz-Silva
- Stomatology Department, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.,Laboratory of Medical Research, Institute of Tropical Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Daniel Malamud
- Department of Basic Science and Craniofacial Biology, College of Dentistry, New York University, New York, NY, USA
| | - Marina Gallottini
- Stomatology Department, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil
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Sabalza M, Yasmin R, Barber CA, Castro T, Malamud D, Kim BJ, Zhu H, Montagna RA, Abrams WR. Detection of Zika virus using reverse-transcription LAMP coupled with reverse dot blot analysis in saliva. PLoS One 2018; 13:e0192398. [PMID: 29401479 PMCID: PMC5798782 DOI: 10.1371/journal.pone.0192398] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 01/23/2018] [Indexed: 12/20/2022] Open
Abstract
In recent years, there have been increasing numbers of infectious disease outbreaks that spread rapidly to population centers resulting from global travel, population vulnerabilities, environmental factors, and ecological disasters such as floods and earthquakes. Some examples of the recent outbreaks are the Ebola epidemic in West Africa, Middle East respiratory syndrome coronavirus (MERS-Co) in the Middle East, and the Zika outbreak through the Americas. We have created a generic protocol for detection of pathogen RNA and/or DNA using loop-mediated isothermal amplification (LAMP) and reverse dot-blot for detection (RDB) and processed automatically in a microfluidic device. In particular, we describe how a microfluidic assay to detect HIV viral RNA was converted to detect Zika virus (ZIKV) RNA. We first optimized the RT-LAMP assay to detect ZIKV RNA using a benchtop isothermal amplification device. Then we implemented the assay in a microfluidic device that will allow analyzing 24 samples simultaneously and automatically from sample introduction to detection by RDB technique. Preliminary data using saliva samples spiked with ZIKV showed that our diagnostic system detects ZIKV RNA in saliva. These results will be validated in further experiments with well-characterized ZIKV human specimens of saliva. The described strategy and methodology to convert the HIV diagnostic assay and platform to a ZIKV RNA detection assay provides a model that can be readily utilized for detection of the next emerging or re-emerging infectious disease.
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Affiliation(s)
- Maite Sabalza
- Department of Basic Sciences, New York University College of Dentistry, New York, New York, United States of America
- * E-mail:
| | - Rubina Yasmin
- Rheonix, Inc., Ithaca, New York, United States of America
| | - Cheryl A. Barber
- Department of Basic Sciences, New York University College of Dentistry, New York, New York, United States of America
| | - Talita Castro
- Department of Basic Sciences, New York University College of Dentistry, New York, New York, United States of America
- Stomatology Department, School of Dentistry, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Daniel Malamud
- Department of Basic Sciences, New York University College of Dentistry, New York, New York, United States of America
- Department of Medicine, New York University School of Medicine, New York, New York, United States of America
| | - Beum Jun Kim
- Rheonix, Inc., Ithaca, New York, United States of America
| | - Hui Zhu
- Rheonix, Inc., Ithaca, New York, United States of America
| | | | - William R. Abrams
- Department of Basic Sciences, New York University College of Dentistry, New York, New York, United States of America
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10
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Abstract
High-density peptide microarrays allow screening of more than six thousand peptides on a single standard microscopy slide. This method can be applied for drug discovery, therapeutic target identification, and developing of diagnostics. Here, we present a protocol to discover specific Zika virus (ZIKV) diagnostic peptides using a high-density peptide microarray. A human serum sample validated for ZIKV infection was incubated with a high-density peptide microarray containing the entire ZIKV protein translated into 3,423 unique 15 linear amino acid (aa) residues with a 14-aa residue overlap printed in duplicate. Staining with different secondary antibodies within the same array, we detected peptides that bind to Immunoglobulin M (IgM) and Immunoglobulin G (IgG) antibodies present in serum. These peptides were selected for further validation experiments. In this protocol, we describe the strategy followed to design, process, and analyze a high-density peptide microarray.
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Affiliation(s)
- Maite Sabalza
- Department of Basic Sciences and Craniofacial Development, New York University College of Dentistry;
| | - Cheryl A Barber
- Department of Basic Sciences and Craniofacial Development, New York University College of Dentistry
| | - William R Abrams
- Department of Basic Sciences and Craniofacial Development, New York University College of Dentistry
| | | | - Daniel Malamud
- Department of Basic Sciences and Craniofacial Development, New York University College of Dentistry; Department of Medicine, New York University Langone School of Medicine
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Miralpeix B, Sabalza M, Twyman RM, Capell T, Christou P. Strategic patent analysis in plant biotechnology: terpenoid indole alkaloid metabolic engineering as a case study. Plant Biotechnol J 2014; 12:117-34. [PMID: 24460888 DOI: 10.1111/pbi.12134] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 09/10/2013] [Accepted: 09/22/2013] [Indexed: 05/25/2023]
Abstract
The do-it-yourself patent search is a useful alternative to professional patent analysis particularly in the context of publicly funded projects where funds for IP activities may be limited. As a case study, we analysed patents related to the engineering of terpenoid indole alkaloid (TIA) metabolism in plants. We developed a focused search strategy to remove redundancy and reduce the workload without missing important and relevant patents. This resulted in the identification of approximately 50 key patents associated with TIA metabolic engineering in plants, which could form the basis of a more detailed freedom-to-operate analysis. The structural elements of this search strategy could easily be transferred to other contexts, making it a useful generic model for publicly funded research projects.
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Affiliation(s)
- Bruna Miralpeix
- Departament de Producció Vegetal I Ciència Forestal (PVCF), Universitat de Lleida-Agrotecnio Center, Lleida, Spain
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12
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Peters J, Sabalza M, Ramessar K, Christou P, Capell T, Stöger E, Arcalís E. Efficient recovery of recombinant proteins from cereal endosperm is affected by interaction with endogenous storage proteins. Biotechnol J 2013; 8:1203-12. [PMID: 23960004 DOI: 10.1002/biot.201300068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 08/02/2013] [Accepted: 08/16/2013] [Indexed: 01/02/2023]
Abstract
Cereal seeds are versatile platforms for the production of recombinant proteins because they provide a stable environment for protein accumulation. Endogenous seed storage proteins, however, include several prolamin-type polypeptides that aggregate and crosslink via intermolecular disulfide bridges, which could potentially interact with multimeric recombinant proteins such as antibodies, which assemble in the same manner. We investigated this possibility by sequentially extracting a human antibody expressed in maize endosperm, followed by precipitation in vitro with zein. We provide evidence that a significant proportion of the antibody pool interacts with zein and therefore cannot be extracted using non-reducing buffers. Immunolocalization experiments demonstrated that antibodies targeted for secretion were instead retained within zein bodies because of such covalent interactions. Our findings suggest that the production of soluble recombinant antibodies in maize could be enhanced by eliminating or minimizing interactions with endogenous storage proteins.
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Affiliation(s)
- Jenny Peters
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
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13
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Berman J, Zhu C, Pérez-Massot E, Arjó G, Zorrilla-López U, Masip G, Banakar R, Sanahuja G, Farré G, Miralpeix B, Bai C, Vamvaka E, Sabalza M, Twyman RM, Bassié L, Capell T, Christou P. Can the world afford to ignore biotechnology solutions that address food insecurity? Plant Mol Biol 2013; 83:5-19. [PMID: 23430566 DOI: 10.1007/s11103-013-0027-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 02/06/2013] [Indexed: 06/01/2023]
Abstract
Genetically engineered (GE) crops can be used as part of a combined strategy to address food insecurity, which is defined as a lack of sustainable access to safe and nutritious food. In this article, we discuss the causes and consequences of food insecurity in the developing world, and the indirect economic impact on industrialized countries. We dissect the healthcare costs and lost productivity caused by food insecurity, and evaluate the relative merits of different intervention programs including supplementation, fortification and the deployment of GE crops with higher yields and enhanced nutritional properties. We provide clear evidence for the numerous potential benefits of GE crops, particularly for small-scale and subsistence farmers. GE crops with enhanced yields and nutritional properties constitute a vital component of any comprehensive strategy to tackle poverty, hunger and malnutrition in developing countries and thus reduce the global negative economic effects of food insecurity.
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Affiliation(s)
- Judit Berman
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
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14
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Sabalza M, Vamvaka E, Christou P, Capell T. Seeds as a Production System for Molecular Pharming Applications: Status and Prospects. Curr Pharm Des 2013; 19:5543-52. [DOI: 10.2174/1381612811319310009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 01/31/2013] [Indexed: 11/22/2022]
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15
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Masip G, Sabalza M, Pérez-Massot E, Banakar R, Cebrian D, Twyman RM, Capell T, Albajes R, Christou P. Paradoxical EU agricultural policies on genetically engineered crops. Trends Plant Sci 2013; 18:312-324. [PMID: 23623240 DOI: 10.1016/j.tplants.2013.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 03/04/2013] [Accepted: 03/26/2013] [Indexed: 06/02/2023]
Abstract
European Union (EU) agricultural policy has been developed in the pursuit of laudable goals such as a competitive economy and regulatory harmony across the union. However, what has emerged is a fragmented, contradictory, and unworkable legislative framework that threatens economic disaster. In this review, we present case studies highlighting differences in the regulations applied to foods grown in EU countries and identical imported products, which show that the EU is undermining its own competitiveness in the agricultural sector, damaging both the EU and its humanitarian activities in the developing world. We recommend the adoption of rational, science-based principles for the harmonization of agricultural policies to prevent economic decline and lower standards of living across the continent.
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Affiliation(s)
- Gemma Masip
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure 191, 25198 Lleida, Spain
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16
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Zorrilla-López U, Masip G, Arjó G, Bai C, Banakar R, Bassie L, Berman J, Farré G, Miralpeix B, Pérez-Massot E, Sabalza M, Sanahuja G, Vamvaka E, Twyman RM, Christou P, Zhu C, Capell T. Engineering metabolic pathways in plants by multigene transformation. Int J Dev Biol 2013; 57:565-76. [DOI: 10.1387/ijdb.130162pc] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Pérez-Massot E, Banakar R, Gómez-Galera S, Zorrilla-López U, Sanahuja G, Arjó G, Miralpeix B, Vamvaka E, Farré G, Rivera SM, Dashevskaya S, Berman J, Sabalza M, Yuan D, Bai C, Bassie L, Twyman RM, Capell T, Christou P, Zhu C. The contribution of transgenic plants to better health through improved nutrition: opportunities and constraints. Genes Nutr 2013; 8:29-41. [PMID: 22926437 PMCID: PMC3534993 DOI: 10.1007/s12263-012-0315-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Accepted: 08/02/2012] [Indexed: 10/28/2022]
Abstract
Malnutrition is a prevalent and entrenched global socioeconomic challenge that reflects the combined impact of poverty, poor access to food, inefficient food distribution infrastructure, and an over-reliance on subsistence mono-agriculture. The dependence on staple cereals lacking many essential nutrients means that malnutrition is endemic in developing countries. Most individuals lack diverse diets and are therefore exposed to nutrient deficiencies. Plant biotechnology could play a major role in combating malnutrition through the engineering of nutritionally enhanced crops. In this article, we discuss different approaches that can enhance the nutritional content of staple crops by genetic engineering (GE) as well as the functionality and safety assessments required before nutritionally enhanced GE crops can be deployed in the field. We also consider major constraints that hinder the adoption of GE technology at different levels and suggest policies that could be adopted to accelerate the deployment of nutritionally enhanced GE crops within a multicomponent strategy to combat malnutrition.
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Affiliation(s)
- Eduard Pérez-Massot
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Raviraj Banakar
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Sonia Gómez-Galera
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Uxue Zorrilla-López
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Georgina Sanahuja
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Gemma Arjó
- />Department of Medicine, University of Lleida, Lleida, Spain
| | - Bruna Miralpeix
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Evangelia Vamvaka
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Gemma Farré
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Sol Maiam Rivera
- />Chemistry Department, ETSEA, University of Lleida, 25198 Lleida, Spain
| | - Svetlana Dashevskaya
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Judit Berman
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Maite Sabalza
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Dawei Yuan
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Chao Bai
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Ludovic Bassie
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Richard M. Twyman
- />Department of Biological Sciences, University of Warwick, Coventry, CV4 7AL UK
| | - Teresa Capell
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
| | - Paul Christou
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
- />Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Changfu Zhu
- />Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Av. Alcalde Rovira Roure, 191, 25198 Lleida, Spain
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18
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Sabalza M, Madeira L, van Dolleweerd C, Ma JK, Capell T, Christou P. Functional characterization of the recombinant HIV-neutralizing monoclonal antibody 2F5 produced in maize seeds. Plant Mol Biol 2012; 80:477-88. [PMID: 22965278 DOI: 10.1007/s11103-012-9962-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 08/24/2012] [Indexed: 05/03/2023]
Abstract
Monoclonal antibodies (mAbs) that neutralize human immunodeficiency virus (HIV) can be used as microbicides to help prevent the spread of HIV in human populations. As an industry standard, HIV-neutralizing mAbs are produced as recombinant proteins in mammalian cells, but the high manufacturing costs and limited capacity reduce the ability of target populations in developing countries to gain access to these potentially life-saving medicines. Plants offer a more cost-effective and deployable production platform because they can be grown inexpensively and on a large scale in the region where the products are required. Here we show that the maize-derived HIV-neutralizing mAb 2F5 is assembled correctly in planta and binds to its antigen with the same affinity as 2F5 produced in mammalian cells. Although 2F5 has been produced at high levels in non-plant platforms, the yield in maize seeds is lower than previously achieved with another HIV-neutralizing mAb, 2G12. This suggests that the intrinsic properties of the antibody (e.g. sensitivity to specific proteases) and the environment provided by the production host (e.g. the relative abundance of different proteases, potential transgene silencing) may combine to limit the accumulation of some antibodies on a case-by-case basis.
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Affiliation(s)
- M Sabalza
- Departament de Produccio Vegetal I Ciencia Forestal (PVCF), Universitat de Lleida-Agrotecnio Center, Lleida, Spain.
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19
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Yuan D, Bassie L, Sabalza M, Miralpeix B, Dashevskaya S, Farre G, Rivera SM, Banakar R, Bai C, Sanahuja G, Arjó G, Avilla E, Zorrilla-López U, Ugidos-Damboriena N, López A, Almacellas D, Zhu C, Capell T, Hahne G, Twyman RM, Christou P. The potential impact of plant biotechnology on the Millennium Development Goals. Plant Cell Rep 2011; 30:249-265. [PMID: 21249369 DOI: 10.1007/s00299-010-0987-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 12/18/2010] [Accepted: 12/18/2010] [Indexed: 05/30/2023]
Abstract
The eight Millennium Development Goals (MDGs) are international development targets for the year 2015 that aim to achieve relative improvements in the standards of health, socioeconomic status and education in the world's poorest countries. Many of the challenges addressed by the MDGs reflect the direct or indirect consequences of subsistence agriculture in the developing world, and hence, plant biotechnology has an important role to play in helping to achieve MDG targets. In this opinion article, we discuss each of the MDGs in turn, provide examples to show how plant biotechnology may be able to accelerate progress towards the stated MDG objectives, and offer our opinion on the likelihood of such technology being implemented. In combination with other strategies, plant biotechnology can make a contribution towards sustainable development in the future although the extent to which progress can be made in today's political climate depends on how we deal with current barriers to adoption.
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Affiliation(s)
- Dawei Yuan
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida, Av. Alcalde Rovira Roure, 191, 25198, Lleida, Spain
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20
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Ramessar K, Sabalza M, Miralpeix B, Capell T, Christou P. Can microbicides turn the tide against HIV? Curr Pharm Des 2010; 16:468-85. [PMID: 19900164 DOI: 10.2174/138161210790232202] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Accepted: 10/26/2009] [Indexed: 11/22/2022]
Abstract
The global impact of human immunodeficiency virus and acquired immunodeficiency syndrome (HIV/AIDS) is increasing and traditional preventative 'safe sex' strategies do not seem to be slowing the spread of this virus. With an efficacious vaccine at least a decade away, the only strategy to avoid the ever-increasing cost of highly active antiretroviral therapy (HAART) is to develop new methods that prevent virus transmission. Microbicides are topically-applied molecules that disrupt the HIV cycle and block infection. This review discusses the current state of the art in microbicide development, looking at the most clinically advanced microbicides and those at earlier development stages based on their mechanisms of action. The socioeconomic impact of microbicide use is also considered, as this will determine whether microbicides are taken up and used consistently by the target population.
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Affiliation(s)
- Koreen Ramessar
- Departament de Producció Vegetal I Ciència Forestal, Universitat de Lleida, Av. Alcade Rovira Roure, Lleida, Spain
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21
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Peremarti A, Twyman RM, Gómez-Galera S, Naqvi S, Farré G, Sabalza M, Miralpeix B, Dashevskaya S, Yuan D, Ramessar K, Christou P, Zhu C, Bassie L, Capell T. Promoter diversity in multigene transformation. Plant Mol Biol 2010; 73:363-78. [PMID: 20354894 DOI: 10.1007/s11103-010-9628-1] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Accepted: 03/11/2010] [Indexed: 05/03/2023]
Abstract
Multigene transformation (MGT) is becoming routine in plant biotechnology as researchers seek to generate more complex and ambitious phenotypes in transgenic plants. Every nuclear transgene requires its own promoter, so when coordinated expression is required, the introduction of multiple genes leads inevitably to two opposing strategies: different promoters may be used for each transgene, or the same promoter may be used over and over again. In the former case, there may be a shortage of different promoters with matching activities, but repetitious promoter use may in some cases have a negative impact on transgene stability and expression. Using illustrative case studies, we discuss promoter deployment strategies in transgenic plants that increase the likelihood of successful and stable multiple transgene expression.
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Affiliation(s)
- Ariadna Peremarti
- Departament de Producció Vegetal i Ciència Forestal, ETSEA, Universitat de Lleida, Av. Alcalde Rovira Roure 191, 25198 Lleida, Spain
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