TREM2 Microglial Activation Rescues Amyloid Clearance in AD

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TREM2 agonistic antibodies restore microglial phagocytosis and plaque compaction in Alzheimer's disease, particularly for R47H variant carriers with ~3-fold increased AD risk. Multiple agonistic antibodies (AL002c, 4D9) are in development targeting the SYK/PLCγ2/CARD9 cascade. Critical uncertainties include biphasic dose-response pharmacology, appropriate mouse model design (conditional knockout r