‘Performance: Encarna-acciones de la contemporaneidad’, Facultad de Artes, Universidad de Antioquia

Since 2003, the project “El Cuerpo Habla” has looked into the question of happenings of the flesh in the city of Medellín and how the paradigm change that occurred with the appearance of the vanguards in the 20th century has given rise to the expansion of concepts such as representation, resistance, and fabulation, all of which allow us to sketch out new strategies in the construction of artistic tendencies in which different techniques and awarenesses such as in performance, permanent artistic workshops, internal and interdisciplinary dialogues, and pedagogical proposals are integrated with those that take on board art, the relation of self, other, and the environment and that are open to multiplicity, divergence, and variation

Identification and characterization of novel factors that act in the nonsense-mediated mRNA decay pathway in nematodes, flies and mammals

Nonsense-mediated mRNA decay (NMD) is a surveillance mechanism that degrades mRNAs harboring premature termination codons (PTCs). We have conducted a genome-wide RNAi screen in Caenorhabditis elegans that resulted in the identification of five novel NMD genes that are conserved throughout evolution. Two of their human homologs, GNL2 (ngp-1) and SEC13 (npp-20), are also required for NMD in human cells. We also show that the C. elegans gene noah-2, which is present in Drosophila melanogaster but absent in humans, is an NMD factor in fruit flies. Altogether, these data identify novel NMD factors that are conserved throughout evolution, highlighting the complexity of the NMD pathway and suggesting that yet uncovered novel factors may act to regulate this process

‘Performance: Encarna-acciones de la contemporaneidad’, Facultad de Artes, Universidad de Antioquia

Since 2003, the project “El Cuerpo Habla” has looked into the question of happenings of the flesh in the city of Medellín and how the paradigm change that occurred with the appearance of the vanguards in the 20th century has given rise to the expansion of concepts such as representation, resistance, and fabulation, all of which allow us to sketch out new strategies in the construction of artistic tendencies in which different techniques and awarenesses such as in performance, permanent artistic workshops, internal and interdisciplinary dialogues, and pedagogical proposals are integrated with those that take on board art, the relation of self, other, and the environment and that are open to multiplicity, divergence, and variation

Functional Conservation of the Glide/Gcm Regulatory Network Controlling Glia, Hemocyte, and Tendon Cell Differentiation in Drosophila.

High-throughput screens allow us to understand how transcription factors trigger developmental processes, including cell specification. A major challenge is identification of their binding sites because feedback loops and homeostatic interactions may mask the direct impact of those factors in transcriptome analyses. Moreover, this approach dissects the downstream signaling cascades and facilitates identification of conserved transcriptional programs. Here we show the results and the validation of a DNA adenine methyltransferase identification (DamID) genome-wide screen that identifies the direct targets of Glide/Gcm, a potent transcription factor that controls glia, hemocyte, and tendon cell differentiation in Drosophila. The screen identifies many genes that had not been previously associated with Glide/Gcm and highlights three major signaling pathways interacting with Glide/Gcm: Notch, Hedgehog, and JAK/STAT, which all involve feedback loops. Furthermore, the screen identifies effector molecules that are necessary for cell-cell interactions during late developmental processes and/or in ontogeny. Typically, immunoglobulin (Ig) domain-containing proteins control cell adhesion and axonal navigation. This shows that early and transiently expressed fate determinants not only control other transcription factors that, in turn, implement a specific developmental program but also directly affect late developmental events and cell function. Finally, while the mammalian genome contains two orthologous Gcm genes, their function has been demonstrated in vertebrate-specific tissues, placenta, and parathyroid glands, begging questions on the evolutionary conservation of the Gcm cascade in higher organisms. Here we provide the first evidence for the conservation of Gcm direct targets in humans. In sum, this work uncovers novel aspects of cell specification and sets the basis for further understanding of the role of conserved Gcm gene regulatory cascades.We thank the DHSB and the Bloomington Stock Center for reagents and flies as well as J. Veenstra (INCIA UMR 5287 CNRS, France) for the gift of the Anti-DH31 antibody and B. Altenhein (U Mainz, Germany) for fly strains. We thank K. Jamet for initial bioinformatics analyses. We thank C. Diebold, C. Delaporte, and IGBMC facilities for technical assistance. We thank the members of the lab for valuable input and comments on the manuscript. This work was supported by INSERM, CNRS, UDS, Hôpital de Strasbourg, ARC, INCA and ANR grants. A. Popkova and P. Cattenoz were funded by the FRM and by the ANR, respectively. A. Popkova also benefitted from a short Development traveling fellowship to visit the laboratory of A. Brand in Cambridge (UK). The IGBMC was also supported by a French state fund through the ANR labex. T.D.S and A.H.B were funded by Wellcome Trust Programme Grants 068055 and 092545 to A.H.B. A.H.B acknowledges core funding to the Gurdon Institute from the Wellcome Trust (092096) and CRUK (C6946/A14492).This is the final version of the article. It was first available from the American Genetics Society via http://dx.doi.org/10.1534/genetics.115.18215

Regulatory Science and Innovation Programme for Europe (ReScIPE):A proposed model

Regulatory science underpins the objective evaluation of medicinal products. It is therefore imperative that regulatory science and expertise remain at the cutting edge so that innovations of ever-increasing complexity are translated safely and swiftly into effective, high-quality therapies. We undertook a comprehensive examination of the evolution of science and technology impacting on medicinal product evaluation over the next 5-10 years and this horizon-scanning activity was complemented by extensive stakeholder interviews, resulting in a number of significant recommendations. Highlighted in particular was the need for expertise and regulatory science research to fill knowledge gaps in both more fundamental, longer-term research, with respect to technological and product-specific challenges. A model is proposed to realise these objectives in Europe, comprising a synergistic relationship between the European Medicines Agency, the European Medicines Regulatory Network and academic research centres to establish a novel regulatory science and innovation platform.</p

CABE MAIS OU CABE MENOS? ATITUDES QUE MUDAM O MUNDO

Não se aplica

Measurement of H₂O₂ within living drosophila during aging using a ratiometric mass spectrometry probe targeted to the mitochondrial matrix

Hydrogen peroxide (H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;) is central to mitochondrial oxidative damage and redox signaling, but its roles are poorly understood due to the difficulty of measuring mitochondrial H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; in vivo. Here we report a ratiometric mass spectrometry probe approach to assess mitochondrial matrix H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; levels in vivo. The probe, MitoB, comprises a triphenylphosphonium (TPP) cation driving its accumulation within mitochondria, conjugated to an arylboronic acid that reacts with H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; to form a phenol, MitoP. Quantifying the MitoP/MitoB ratio by liquid chromatography-tandem mass spectrometry enabled measurement of a weighted average of mitochondrial H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; that predominantly reports on thoracic muscle mitochondria within living flies. There was an increase in mitochondrial H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; with age in flies, which was not coordinately altered by interventions that modulated life span. Our findings provide approaches to investigate mitochondrial ROS in vivo and suggest that while an increase in overall mitochondrial H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; correlates with aging, it may not be causative

Best practice guidance for creation and management of innovations in health care and information and communications technologies

Governments and publics in Europe and around the world have turned to innovation in response to the manifold economic, environmental, and societal challenges we are facing. However, innovations often end up in what is popularly termed as the “valley of death” between upstream creation and downstream product development and implementation. Consequently, the benefits of innovation do not always reach the citizens. In addition, critically informed governance of innovations matter because it allows steering of innovations in response to the values and end points desired by society. With the COVID-19 pandemic, we have witnessed the rise of digital health and new information and communications technologies (ICTs). The pandemic underscored the need for innovation governance between global North and the global South. We report and discuss, in this study, the development of the innXchange innovation wheel to improve innovation creation and management, using a case study of cooperation between Europe and Africa. The innovation wheel offers best practice guidance and framework to build capacity for innovation dimensions such as partnership mobilization, evaluation, and monitoring, not to mention innovation literacy. The framework emphasizes active engagement of all key stakeholders from the very beginning, also referred to as “systematic early dialog.” We propose the incorporation of systematic early dialog as the best practice guidance in global South and global North cooperation for health care and ICT innovation. The framework is a novel instrument to help overcome the current barriers in planetary health innovation management and consequently, bring breakthrough discoveries in ICTs and innovative ideas to the people.This work and data originate, in part, from the doctoral thesis of Sebastian Schee Genannt Halfmann, supervised by Angela Brand at Maastricht University, and were, in part, published previously only as a PhD thesis (2019).The ERA-net ERAfrica project innXchange has received funding from the European Union’s Seventh Framework Programme for Research and Technological Development. This work was supported by the Netherlands Organisation for Scientific Research (The Netherlands), The Department of Science and Technology (South Africa), The Ministry of Education, Science and Technology (Kenya), and the German Federal Ministry for Education and Research (Germany).http://www.liebertpub.com/overview/omics-a-journal-of-integrative-biology/43hj2022Informatic