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AND-gated protease-activated nanosensors for programmable detection of anti-tumour immunity.
Nat Nanotechnol
January 2025
Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech College of Engineering and Emory School of Medicine, Atlanta, GA, USA.
The forward design of biosensors that implement Boolean logic to improve detection precision primarily relies on programming genetic components to control transcriptional responses. However, cell- and gene-free nanomaterials programmed with logical functions may present lower barriers for clinical translation. Here we report the design of activity-based nanosensors that implement AND-gate logic without genetic parts via bi-labile cyclic peptides.
View Article and Find Full Text PDFTowards simplified graph neural networks for identifying cancer driver genes in heterophilic networks.
Brief Bioinform
November 2024
School of Computer Science, Northwestern Polytechnical University, Xi'an, 710072 Shaanxi, China.
The identification of cancer driver genes is crucial for understanding the complex processes involved in cancer development, progression, and therapeutic strategies. Multi-omics data and biological networks provided by numerous databases enable the application of graph deep learning techniques that incorporate network structures into the deep learning framework. However, most existing methods do not account for the heterophily in the biological networks, which hinders the improvement of model performance.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Cornell University, Ithaca, NY, USA.
Background: Spatial disorientation is an early symptom of Alzheimer's disease (AD). The hippocampus creates a cognitive map, wherein cells form firing fields in specific locations within an environment, termed place cells. Critically, place cells remain stable across visits to an environment, but change their firing rate or field location in a different environment.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Texas Tech University Health Sciences Center, Lubbock, TX, USA.
Background: Disrupted balance between amyloidogenic and non-amyloidogenic pathways leads to cognitive decline in Alzheimer's disease (AD). Evidence suggests vitamin A (VA) supplementation favors the non-amyloidogenic pathway through upregulation of α-secretase. Originally used to map embryonic retinoic acid (RA) signaling, RARE-LacZ mice possess multiple LacZ genes controlled by retinoic acid response elements (RAREs).
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Georgia, Athens, GA, USA.
Background: Alzheimer's disease (AD) has traditionally been recognized as progressive dementia with brain deposits of amyloid (Aβ) and Tau (MAPT) proteins starting 20 and 10 years before the onset of clinical symptoms. Aggregation and deposition of Aβ and Tau proteins have been successfully studied in vitro, cell cultures, and animal models, but clinical deficits have been more difficult to assess. Behavior in mice is a complex phenomenon and subject to variation based on mouse interest, moods, stress-induced distraction, and other undefined parameters.
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