Chromogranin A‐Activated Microglial Cells Induce Neuronal Apoptosis

Abstract
Abstract: Chromogranin (CgA), a protein upregulated in many neuropathologies, can induce an activated phenotype in microglial cells that leads to neuronal apoptosis. The death‐signaling pathways mobilized in neurons involve the death receptor Fas, p38 MAP kinase, and mitochondrial cytochrome c. We propose that CgA represents a potent endogenous inflammatory factor responsible for neuronal degeneration.