Abstract
Alzheimer's disease is a progressive neurodegenerative disease, and its incidence is expected to increase owing to the aging population worldwide. Current therapies merely provide symptomatic relief. Therefore, interventions for AD that delay the disease onset or progression are urgently required. Recent genomics and functional studies suggest that immune/inflammatory pathways are involved in the pathogenesis of AD. Although many anti-inflammatory drug candidates have undergone clinical trials, most have failed. This might be because of our limited understanding of the pathological mechanisms of neuroinflammation in AD. However, recent advances in the understanding of immune/inflammatory pathways in AD and their regulatory mechanisms could open up new avenues for drug development targeting neuroinflammation. In this Review, we discuss the mechanisms and status of different anti-inflammatory drug candidates for AD that have undergone or are undergoing clinical trials and explore new opportunities for targeting neuroinflammation in AD drug development.
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