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… How a mutation in microglia elevates Alzheimer’s risk November 16, 2023 Research Findings A new MIT study finds that microglia with mutant TREM2 protein reduce brain circuit … in other ways neurodegeneration Alzheimer's dementia microglia synapse neuroimmunology …

… turned those into three kinds of brain cells: neurons, microglia immune cells, and astrocytes. They edited some of … an experiment in 2022 where researchers showed that APOE4 microglia cells failed to support neuronal network … Medicine. The study also identified lipid dysregulation in microglia cells, but the Tsai lab’s focus on those cells came …

… have implicated molecular cross-talk with the brain’s microglia immune cells. Notably, when the researchers cultured APOE4 miBrains without microglia, their production of phosphorylated tau was … APOE4 miBrains with culture media from astrocytes and microglia combined, phosphorylated tau increased, whereas …

… response to Alzheimer’s both by rejuvenating the brain’s microglia immune cells and bringing in the help of peripheral … with Alzheimer’s disease are most strongly expressed in microglia, giving it an expression profile more similar to … typically is highest in neurons). The study showed that microglia become “exhausted” over the course of disease …

… on preserving epigenomic stability. neurodegeneration microglia astrocytes epigenetics chromatin Single Cell … cell types that were especially vulnerable including microglia that play immune and other roles, oligodendrocytes … genetic risk factor for Alzheimer’s. In APOE4 brains, microglia initially responded to the emerging disease …

… disease neuroimmunology Neuroimmune interactions microglia neurodegeneration dementia … delivered small interfering RNA (siRNA) to the brain’s microglia immune cells to suppress expression of a protein … new study also demonstrates a new way to deliver RNA to microglia, which have been difficult to target so far.   …

… Cell Transcriptomics and Epigenomics neurodegeneration microglia By analyzing epigenomic and gene expression changes … genes, and found that many of them occur most often in microglia, the immune cells responsible for clearing debris … which contributes to loss of cell identity. The role of microglia In a third Cell paper, led by MIT graduate student …