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New Assay Identifies Clinically Relevant Gene Fusions in Pediatric Tumors

Researchers at Children’s Hospital Los Angeles report in The Journal of Molecular Diagnostics about a new tool that effectively integrates data from four fusion callers and identifies disease-related gene fusions Philadelphia, February 13, 2024 – Identification of specific gene fusions is critical for the successful targeted treatment of pediatric cancer patients. Researchers at Children’s Hospital Los Angeles have developed a novel assay that automatically integrates the data from multiple fusion identification tools (callers) and efficiently and accurately identifies clinically relevant gene fusions in pediatric tumors. Their results are reported in The Journal of Molecular Diagnostics, published by Elsevier. „An Exome Capture-Based RNA-Sequencing Assay for Genome-Wide Identification and Prioritization of Clinically Important Fusions in Pediatric Tumors,” by Jonathan Buckley, Ryan J. Schmidt, Dejerianne Ostrow, Dennis Maglinte, Moiz Bootwalla, David Ruble, Ananthanarayanan Govindarajan, Jianling Ji, Alexandra E. Kovach, Etan Orgel, Gordana Raca, Fariba Navid, Leo Mascarenhas, Bruce Pawel,… 

New mechanism could improve the efficiency of diabetes treatments

The study, published in the journal Metabolism, focuses on the GDF15 protein, a factor that is expressed at high levels in many diseases, such as heart failure, cancer and fatty liver disease. Obese patients also have elevated levels of this protein, but its function is altered and those affected may develop resistance to GDF15 — that is, a reduction in the effectiveness of its activity. The study is led by Professor Manuel Vázquez-Carrera, from the Faculty of Pharmacy and Food Sciences of the UB, the Institute of Biomedicine of the UB (IBUB), the Sant Joan de Déu Research Institute (IRSJD) and CIBERDEM. The study also highlights the participation of researchers Patricia Rada and Ángela María Valverde, also collaborators at CIBERDEM, the Spanish National Research Council (CSIC) and the Autonomous University of Madrid (UAM). The work has the collaboration of Professor… 

Premiere: Erstes unterirdisches Laboratorium in Afrika

Das erste unterirdische Wissenschaftslabor Afrikas könnte in den nächsten fünf bis zehn Jahren Realität werden: das Paarl Africa Underground Laboratory (PAUL) in den Du Toits Kloof-Bergen am Westkap in Südafrika, das über den bestehenden Hugenottentunnel erreichbar ist.

Lymphknotenbefall bei Brustkrebs: Bestrahlung hilft

Eine Bestrahlung der Lymphabflusswege senkt die Rezidivraten und verbessert das Gesamtüberleben bei Brustkrebspatientinnen mit Lymphknotenbefall. Zu diesem Schluss kommt eine Metaanalyse der „Early Breast Cancer Trialists‘ Collaborative Group“ (EBCTCG).

Uniklinik Köln: Internationale Leitlinie zur Pilzbehandlung 

Eine Gruppe von internationalen Mykologie-Experten um Univ.-Prof. Dr. Oliver A. Cornely von der Kölner Uniklinik hat zusammen eine Leitlinie zur Diagnose und Behandlung von Kryptokokkose entworfen, die zur Verbesserung des Infektionsmanagements und somit zur Überlebensrate von Patienten beitragen soll. Der Artikel „Global guideline for the diagnosis and management of cryptococcosis“ ist nun in der Zeitschrift The Lancet Infectious Diseases veröffentlicht worden.

Nanosensoren machen diagnostische Verfahren sensitiver

Das Fraunhofer-Institut für Mikroelektronische Schaltungen und Systeme IMS und die Ruhr-Universität Bochum haben gemeinsam ein Verfahren entwickelt, das eine neuartige Form der Signalverstärkung von diagnostischen Tests ermöglicht. Durch den fortschrittlichen Einsatz von leuchtenden Kohlenstoff-Nanoröhren in der Bioanalytik können Testverfahren sensitiver, schneller und günstiger durchgeführt werden. Die Sensoren lassen sich für enzymatische Verfahren nutzen. Durch ihre Anpassungsfähigkeit an verschiedene Reaktionsbedingungen eröffnet sich ein breites Anwendungsspektrum für Standardverfahren wie beispielsweise ELISAs, kurz für „Enzyme-linked Immunosorbent Assay“. Originalpublikation:Justus T. Metternich, Björn Hill, Janus A.C. Wartmann, Chen Ma, Rebecca M. Kruskop, Krisztian Neutsch, Svenja Herbertz, Sebastian Kruss: Signal Amplification and Near-Infrared Translation of Enzymatic Reactions by Nanosensors, in: Angewandte Chemie International Edition, 2023, DOI: 10.1002/anie.202316965, https://onlinelibrary.wiley.com/doi/10.1002/anie.202316965

Scientists use quantum biology, AI to sharpen genome editing tool

Scientists at Oak Ridge National Laboratory used their expertise in quantum biology, artificial intelligence and bioengineering to improve how CRISPR Cas9 genome editing tools work on organisms like microbes that can be modified to produce renewable fuels and chemicals. CRISPR is a powerful tool for bioengineering, used to modify genetic code to improve an organism’s performance or to correct mutations. The CRISPR Cas9 tool relies on a single, unique guide RNA that directs the Cas9 enzyme to bind with and cleave the corresponding targeted site in the genome. Existing models to computationally predict effective guide RNAs for CRISPR tools were built on data from only a few model species, with weak, inconsistent efficiency when applied to microbes. For more information, please visit energy.gov/science. JOURNALNucleic Acids Research DOI10.1093/nar/gkad736

Are environmental toxins putting future generations at risk?

The study, published in the journal Environmental Health Perspectives, demonstrates a link between long-term exposure to DDT and changes in the sperm epigenome. These changes, particularly in genes vital for fertility, embryo development, neurodevelopment, and hormone regulation, correspond to increased rates of birth defects and diseases, including neurodevelopmental and metabolic disorders. Lismer, A., Shao, X., Dumargne, M. C., Lafleur, C., Lambrot, R., Chan, D., … & Kimmins, S. (2024). The association between long-term DDT or DDE exposures and an altered sperm epigenome—a cross-sectional study of Greenlandic Inuit and South African VhaVenda men. Environmental Health Perspectives, 132(1), 017008. https://doi.org/10.1289/EHP1201309.02.2024 McGill University

Recommendations for Imaging in Crystal-Induced Arthropathies

To help optimise clinical management, EULAR has drafted new recommendations for the use of imaging in diagnosis and management of CiA. A special taskforce – made up of rheumatologists, radiologists, methodologists, healthcare professionals, and patient research partners – collected evidence from four systematic literature reviews. The new work, published in the February issue of the Annals of the Rheumatic Diseases includes five overarching principles and 10 recommendations. The principles stress that CiA are can be characterised by intermittent, acute episodes of inflammation – but they can also follow a chronic disease course with or without flares. Imaging provides useful information on crystal deposition, inflammation, and structural damage. However, abnormalities on imaging may not be related to clinical symptoms, and patient information including medical history, laboratory results, and physical examination are always the most relevant to be taken into account. Finally,…