Stressor-induced proinflammatory cytokine overproduction pathways in glia

Stressor-induced proinflammatory cytokine overproduction pathways in glia represent the integrated signaling networks within microglia and astrocytes that respond to physiological or psychological stressors by releasing inflammatory mediators (Calcia et al., 2016, Frontiers in Cellular Neuroscience). These pathways are typically initiated by the recognition of Damage-Associated Molecular Patterns (DAMPs) or Pathogen-Associated Molecular Patterns (PAMPs) by receptors such as Toll-like receptor 4 (TLR4). Subsequent activation of the NF-kappaB and NLRP3 inflammasome pathways leads to the maturation and secretion of potent cytokines, including IL-1beta, TNF-alpha, and IL-6 (Iwata et al., 2013, Progress in Neuro-Psychopharmacology and Biological Psychiatry). While acute activation is a protective response, chronic overproduction of these cytokines is a hallmark of neuroinflammation and contributes to the pathogenesis of neurodegenerative diseases and psychiatric disorders like depression (Weber et al., 2017, Biological Psychiatry). Furthermore, the interaction between glia and neurons is disrupted by these cytokines, leading to impaired synaptic plasticity and neurogenesis (Calcia et al., 2016, Frontiers in Cellular Neuroscience). Pharmacological intervention targets specific nodes within these cascades, such as the NLRP3 inflammasome or TLR4, to mitigate neurotoxic inflammation while attempting to preserve the glia's homeostatic roles in synaptic maintenance and debris clearance (Singhal et al., 2014, Frontiers in Cellular Neuroscience).

Other names

Neuroinflammatory signaling in gliaGlial proinflammatory pathwaysStress-induced neuroinflammationGlial activation pathways

Inhibition of specific molecular nodes such as TLR4, NLRP3, or NF-kappaB to prevent the synthesis and release of proinflammatory cytokines from activated microglia and astrocytes (Singhal et al., 2014, Frontiers in Cellular Neuroscience).