Food safety, food security and genetically modified organisms in Africa: a current perspective.

Moving forward from 2020, Africa faces an eminent challenge of food safety and security in the coming years. The World Food Programme (WFP) of the United Nations (UN) estimates that 20% of Africa's population of 1.2 billion people face the highest level of undernourishment in the world, likely to worsen due to COVID-19 pandemic that has brought the entire world to its knees. Factors such as insecurity and conflict, poverty, climate change and population growth have been identified as critical contributors to the food security challenges on the continent. Biotechnological research on Genetically Modified Organisms (GMOs) provides a range of opportunities (such as increased crop yields, resistance to pests and diseases, enhanced nutrient composition and food quality) in addressing the hunger, malnutrition and food security issues on the continent. However, the acceptance and adoption of GMOs on the continent has been remarkably slow, perhaps due to contrasting views about the benefits and safety concerns associated with them. With the reality of food insecurity and the booming population in Africa, there is an eminent need for a more pragmatic position to this debate. The present review presents an overview of the current situation of food safety and security and attempts to reconcile major viewpoints on GMOs research considering the current food safety and security crisis in the African continent.

Call for More Effective Regulation of Clinical Trials with Advanced Therapy Medicinal Products Consisting of or Containing Genetically Modified Organisms in the European Union.

Advanced therapy medicinal products (ATMPs), such as gene therapies that consist of or contain genetically modified organisms (GMOs) need to comply with the European Union (EU) GMO legislation, as implemented in each EU Member State, before a clinical trial can commence. Complying with GMO requirements is complex, varies significantly across EU Member States and is leading to delays to clinical trials with ATMPs. Such delays and varying implementation of the GMO legislation makes the EU less attractive as a region to conduct clinical trials with investigational gene therapies. This is detrimental to EU patients, since their timely access to these transformative potentially curative medicines is delayed. Despite recent initiatives coordinated by the European Commission (EC) to facilitate and reduce discrepancies across the EU regarding the application of the GMO requirements, it remains particularly difficult to conduct multicenter clinical trials with ATMPs containing or consisting of GMOs involving several EU Member States. The recent decision for the EC to temporarily derogate potential coronavirus disease 2019 treatments and vaccines from some provisions of the GMO requirements was made on the basis of a clear recognition of such complexities and resulting delays to clinical development. The Alliance for Regenerative Medicine, the European Federation of Pharmaceutical Industries and Associations, and the European Association for Bioindustries call upon the EC, together with national competent authorities, to exempt ATMPs containing or consisting of GMOs from the GMO legislation. Such a simplification will eliminate the delays currently reported to occur when submitting environmental risk assessments and GMO applications to the national competent authorities. An exemption from GMO requirements will make the EU a more attractive region for clinical development of gene therapies and could accelerate European patients' access to these potentially life-saving medicines. Maintaining a system for GMO assessment that is different across countries may also prevent ATMPs from realizing the full benefits of a harmonized clinical trial approval process under the Clinical Trials Regulation. The undersigned organizations to this publication urge the EC to use its right of initiative to put forward a legislative proposal to exempt ATMPs in clinical development from the EU GMO legislation, within the timeframe proposed in the 2020 EU Pharmaceutical Strategy (by 2022). Implementation of a GMO exemption scheme before the end of the transition period for the Clinical Trial Regulation (the end of 2023) is important to avoid new Clinical Trial Application submissions for ATMPs under the Clinical Trial Regulation having to conduct the whole GMO assessment process in parallel. It is considered that ATMPs pose negligible risk to the environment. Such ATMPs include the following: human somatic cells modified ex vivo; recombinant virus-based vectors, including those containing genome editing nucleic acid sequences (which may also be delivered nonvirally); and bacterial vectors. Outside of controlled storage conditions, gene therapies cannot survive for any appreciable length of time. Upon clinical administration, any recombinant gene therapy viral vector particles that do not enter host cells are diluted within the body and if excreted are in such low multiplicity to no longer be viable or considered infectious to persons, animals, or living organisms within the environment. Any nucleic acids released into the environment are rapidly degraded.

Temporary derogation from European environmental legislation for clinical trials of genetically modified organisms for coronavirus disease 2019.

Attempts to streamline environmental procedures for those products containing or consisting of genetically modified organisms (GMOs) among the European Union (EU) Member States are ongoing but still need to be further developed. These procedures can be complex, resource-intensive and time-consuming. Some candidate vaccines currently under development for COVID-19 include genetically modified viruses, which may be considered GMOs. Given the public health emergency caused by the COVID-19 outbreak, on July 15, 2020, the European Parliament approved a temporary derogation of the European environmental requirements to facilitate that those clinical trials with GMOs intended to treat or prevent COVID-19 can start as soon as possible in Europe. This measure has been very controversial, since it could entail risks to human health and the environment, and could be seen as unfair for other products targeting unmet medical needs. With the adoption of this measure, the bottlenecks and obstacles for the development of innovative GMO-based medicines in the EU that the environmental legislation entails have become even more evident.

An Infectious cDNA Clone of SARS-CoV-2.

The ongoing pandemic of COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), underscores the urgency to develop experimental systems for studying this virus and identifying countermeasures. We report a reverse genetic system for SARS-CoV-2. Seven complimentary DNA (cDNA) fragments spanning the SARS-CoV-2 genome were assembled into a full-genome cDNA. RNA transcribed from the full-genome cDNA was highly infectious after electroporation into cells, producing 2.9 × 106 plaque-forming unit (PFU)/mL of virus. Compared with a clinical isolate, the infectious-clone-derived SARS-CoV-2 (icSARS-CoV-2) exhibited similar plaque morphology, viral RNA profile, and replication kinetics. Additionally, icSARS-CoV-2 retained engineered molecular markers and did not acquire other mutations. We generated a stable mNeonGreen SARS-CoV-2 (icSARS-CoV-2-mNG) by introducing this reporter gene into ORF7 of the viral genome. icSARS-CoV-2-mNG was successfully used to evaluate the antiviral activities of interferon (IFN). Collectively, the reverse genetic system and reporter virus provide key reagents to study SARS-CoV-2 and develop countermeasures.

[A race against the clock: creation of SARS-Cov-2 in the laboratory, a month after its emergence!] / Une course contre la montre - Création du SARS-CoV-2 en laboratoire, un mois après son émergence !

SARS-CoV-2 (severe acute respiratory syndrome-coronavirus-2, which emerged in China at the end of 2019, is responsible for a global health crisis resulting in the confinement of more than 3 billion people worldwide and the sharp decline of the world economy. In this context, a race against the clock is launched in order to develop a treatment to stop the pandemic as soon as possible. A study published in Nature by the Volker Thiel team reports the development of reverse genetics for SARS-CoV-2 allowing them to recreate the virus in just a few weeks. The perspectives of this work are very interesting since it will allow the genetic manipulation of the virus and thus the development of precious tools which will be useful to fight the infection. Even though this approach represents a technological leap that will improve our knowledge of the virus, it also carries the germ of possible misuse and the creation of the virus for malicious purposes. The advantages and disadvantages of recreating SARS-CoV-2 in this pandemic period are discussed in this mini-synthesis.

TITLE: Une course contre la montre - Création du SARS-CoV-2 en laboratoire, un mois après son émergence ! ABSTRACT: Le SARS-CoV-2 (severe acute respiratory syndrome-coronavirus-2), qui a émergé à la fin de l'année 2019 en République populaire de Chine, est responsable d'une crise sanitaire mondiale qui a entraîné le confinement de plus de 3 milliards d'individus et l'arrêt brutal de l'économie planétaire. Dans ce contexte, une course contre la montre est lancée afin de développer, dans les plus brefs délais, un traitement permettant d'enrayer la pandémie. Une étude de l'équipe de Volker Thiel, parue dans le journal Nature, rapporte la mise au point d'une technique de génétique inverse pour le SARS-CoV-2, leur ayant permis de recréer le virus en seulement quelques semaines. Les perspectives de ces travaux sont très intéressantes puisqu'elles permettent d'envisager la manipulation génétique du virus et ainsi le développement d'outils précieux qui seront utiles pour combattre l'infection. Si la technique représente également un saut technologique qui permettra d'améliorer nos connaissances sur le virus, elle porte aussi en elle le germe d'un possible mésusage et la création d'un virus à des fins malveillantes. Les avantages et inconvénients de recréer le SARS-CoV-2 dans cette période de pandémie sont discutés dans cet article.

Bioinformatic analysis indicates that SARS-CoV-2 is unrelated to known artificial coronaviruses.

OBJECTIVE: SARS-CoV-2 is responsible for the present coronavirus pandemic and some suggestions were made about its possible artificial origin. We, therefore, compared SARS-CoV-2 with such known viruses that were prepared in the laboratory and other relevant natural strains to estimate their genetic relatedness. MATERIALS AND METHODS: BLAST and clustalW were used to identify and align viral sequences of SARS-CoV-2 to other animal coronaviruses (human, bat, mouse, pangolin) and related artificial constructs. Phylogenetics trees were then prepared using iTOL. RESULTS: Our study supports the notion that known artificial coronaviruses, including the chimeric SL-SHC014-MA15 synthesized in 2015, differ too much from SARS-CoV-2 to hypothesize an artificial origin of the latter. On the contrary, our data support the natural origin of the COVID-19 virus, likely derived from bats, possibly transferred to pangolins, before spreading to man. CONCLUSIONS: Speculations about the artificial origin of SARS-CoV-2 are most likely unfounded. On the contrary, when carefully handled, engineered organisms provide a unique opportunity to study biological systems in a controlled fashion. Biotechnology is a powerful tool to advance medical research and should not be abandoned because of irrational fears.