Swiss researchers have gained new insights into the relationship between aging, inflammation, neurodegeneration and cognitive decline. EPFL professor Andrea Ablasser and her team showed that brain aging was driven by microglial activation of the cGAS/STING pathway.
Protein quality control research is “almost exclusively focused on heat shock proteins, which are ubiquitously present” up and down the evolutionary chain, Xiaolu Yang told BioWorld. But “for more sophisticated organisms, which we humans like to think we are, it’s a little odd that we still use the system that bacteria started with…. It seems like we should have something more. The TRIM system,” he added, “fills that gap.”
Protein quality control research is “almost exclusively focused on heat shock proteins, which are ubiquitously present” up and down the evolutionary chain, Xiaolu Yang told BioWorld. But “for more sophisticated organisms, which we humans like to think we are, it’s a little odd that we still use the system that bacteria started with…. It seems like we should have something more. The TRIM system,” he added, “fills that gap.”
TRIMs or tripartite motif proteins are a group of quality control proteins that are found only in animals. One of their functions is to add ubiquitin tags to proteins, marking them for transport to the proteasome system. TRIMs are part of the innate antiviral defense system. But in the July 27, 2023, issue of Science, Yang, who is a professor of cancer biology in the Perelman School of Medicine at the University of Pennsylvania, and his colleagues reported that TRIM11 interacts with tau protein in multiple ways that were beneficial in preventing tauopathies.
Transplanted human glial cells could outcompete human glia in a chimeric mouse model of Huntington’s disease, inducing apoptosis. And younger health cells could outcompete older ones. The findings, which appeared online in Nature Biotechnology on July 17, 2023, help pave the way for testing glial cell transplantation as a therapeutic strategy in neurodegenerative disorders.
In brain research, be it basic or clinical, neurons have long hogged the limelight. But at the 2023 European Meeting on Glial Cells in Health and Disease, neurons take a back seat to glia – cell types that have often been described as support cells and treated as an afterthought, but that play critical roles in all aspects of brain function, including information processing.
With the approval of Aduhelm (aducanumab, Eli Lilly & Co.) and Leqembi (lecanemab, Eisai Co. Ltd.), there are finally amyloid-targeting drugs available for Alzheimer’s disease (AD). What’s not available, though, are rose-colored glasses of the prescription strength that would make these approvals look like AD’s happy ending. The biopharma industry is already well aware of the need for broader horizons. Roughly three-quarters of drugs now in clinical development for AD target neither amyloid-β (Aβ) nor tau. Still, the genetic evidence from familial AD strongly implicates Aβ processing in AD’s origins. In his opening plenary talk at the European Academy of Neurology 2023 annual conference, Thomas Südhof suggested new ways to look at the clinical data.
At the 2023 Annual Congress of the European Academy of Neurology, Mary Reilly described the relationship between bench and bedside as “a continuous circle of translation,” with each cycle beginning with patients and their needs.
It seems unlikely that American poet and civil rights activist Maya Angelou spent much time thinking about translational research. But two quotes of hers capture the essence of the interplay between bench and bedside: “I did then what I knew how to do. Now that I know better, I do better” and “I’ve learned that I still have a lot to learn.” At the 2023 Annual Congress of the European Academy of Neurology, Mary Reilly described the relationship between bench and bedside as “a continuous circle of translation,” with each cycle beginning with patients and their needs.
Artificial intelligence (AI) continues to entice. On the exhibition floor at the 2023 Congress of the European Academy of Neurology, one company’s booth featured “Mindart” technology. A passersby could answer a short series of prompts, and get a unique image based on the input made by generative AI. Entertainment aside, medically speaking, AI applications “are still research,” Riccardo Soffietti told his audience at one of several sessions devoted to AI. “But obviously, research is the future.”
Multiple sclerosis (MS) is and remains “a problem in the immune system” Stephen Sawcer told BioWorld. As in other autoimmune diseases, a faulty immune system attacks otherwise healthy tissues that it should be leaving alone. In the case of MS, the tissue in question is oligodendrocytes. And a study published online in Nature on June 28, 2023, suggests that while MS’ beginnings are autoimmune, the path it takes in an individual patient is determined in part by how well the brain can cope with the autoimmune attack.
