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- nibib
- Immunology
Synthetic Protein Circuits for Programmable Control of Mammalian Cell Death
Xia et al., Cell. 2024.
https://pubmed.ncbi.nlm.nih.gov/38657604/
Natural cell-death pathways have been shown to eliminate harmful cells and shape immunity. Researchers used synthetic protein-level cell-death circuits, collectively termed “synpoptosis” circuits, to proteolytically regulate engineered executioner proteins and mammalian cell death. They show that the circuits direct cell death modes, respond to combinations of protease inputs, and selectively eliminate target cells. This work provides a foundation for programmable control of mammalian cell death. Future studies could focus on programmable control of cell death in various contexts, including cancer, senescence, fibrosis, autoimmunity, and infection. Supported by ORIP (F30OD036190) and NIBIB.
MRI Characteristics of Japanese Macaque Encephalomyelitis (JME): Comparison to Human Diseases
Tagge et al., Journal of Neuroimaging. 2021.
https://onlinelibrary.wiley.com/doi/10.1111/jon.12868
Magnetic resonance imaging data (MRI) were obtained from 114 Japanese macaques, including 30 animals of both sexes that presented with neurological signs of Japanese macaque encephalomyelitis (JME). Quantitative estimates of blood-brain barrier permeability to gadolinium-based-contrast agent (GBCA) were obtained in acute, GBCA-enhancing lesions, and longitudinal imaging data were acquired for 15 JME animals. Intense, focal neuroinflammation was a key MRI finding in JME. Several features of JME compare directly to human inflammatory demyelinating diseases. The development and validation of noninvasive imaging biomarkers in JME provides the potential to improve diagnostic specificity and contribute to the understanding of human demyelinating diseases. Supported by ORIP (P51OD011092, S10OD018224), NINDS, and NIBIB.