Scientists restore memory by blocking a single Alzheimer’s protein
Researchers have identified a new potential weapon against Alzheimer’s: blocking a protein called PTP1B. In mice, this approach boosted memory and helped brain immune cells clear harmful plaque buildup. Since PTP1B is also linked to diabetes and obesity—both risk factors for Alzheimer’s—it could off
By Science Daily
Researchers at Cold Spring Harbor Laboratory have identified a new potential strategy for treating Alzheimer's disease by blocking a single protein known as PTP1B. In a study using mouse models, scientists found that inhibiting this protein improved learning and memory by revitalizing 'exhausted' immune cells in the brain called microglia. These cells are responsible for clearing out the amyloid-beta plaque that is widely believed to drive the progression of the disease, but they often become less effective as the condition worsens.
The breakthrough is particularly promising because PTP1B is already a known target for metabolic disorders like obesity and type 2 diabetes, both of which are significant risk factors for Alzheimer's. By targeting multiple aspects of the pathology—including both A-beta clearance and metabolic health—researchers hope this approach could provide a more effective impact than current therapies. The team is now collaborating with biotech firms to develop clinical-grade PTP1B inhibitors, offering a new 'ray of hope' for the millions of families affected by the memory-robbing condition.