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Branched endosomal disruptor (BEND) lipids mediate delivery of mRNA and CRISPR-Cas9 ribonucleoprotein complex for hepatic gene editing and T cell engineering.
Nat Commun
January 2025
Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Lipid nanoparticles (LNPs) are the preeminent non-viral drug delivery vehicle for mRNA-based therapies. Immense effort has been placed on optimizing the ionizable lipid (IL) structure, which contains an amine core conjugated to lipid tails, as small molecular adjustments can result in substantial changes in the overall efficacy of the resulting LNPs. However, despite some advancements, a major barrier for LNP delivery is endosomal escape.
View Article and Find Full Text PDFProteomic Profiling of Potential E6AP Substrates via Ubiquitin-based Photo-Crosslinking Assisted Affinity Enrichment.
Chembiochem
January 2025
Departments of Biology and Chemistry, Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78467, Konstanz, Germany.
The ubiquitin (Ub) ligase E6AP, encoded by the UBE3A gene, has been causally associated with human diseases including cervical cancer and Angelman syndrome, a neurodevelopmental disorder. Yet, our knowledge about disease-relevant substrates of E6AP is still limited, presumably because at least some of these interactions are rather transient, a phenomenon observed for many enzyme-substrate interactions. Here, we introduce a novel approach to trap such potential transient interactions by combining a stable E6AP-Ub conjugate mimicking the active state of this enzyme with photo-crosslinking (PCL) followed by affinity enrichment coupled to mass spectrometry (AE-MS).
View Article and Find Full Text PDFThree-Dimensional Gait Analysis of School-Age Children With Angelman Syndrome: A Case-Control Study.
Am J Med Genet A
January 2025
Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Gait disturbance is a common motor symptom in Angelman syndrome (AS), but its characteristics have been poorly studied quantitatively. This study aimed to analyze gait characteristics in school-age children with AS using three-dimensional gait analysis (3DGA). Patients with clinically and genetically confirmed AS and healthy children aged 6-15 years were included.
View Article and Find Full Text PDFClinical and Cytogenetic Impact of Maternal Balanced Double Translocation: A Familial Case of 15q11.2 Microduplication and Microdeletion Syndromes with Genetic Counselling Implications.
Genes (Basel)
November 2024
Laboratório de Citogenética Clínica, Centro de Genética Médica, Instituto Nacional da Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira-Fundação Oswaldo Cruz, Rio de Janeiro 22250-020, Brazil.
Background: Balanced chromosomal translocations occur in approximately 0.16 to 0.20% of live births.
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