The Bidirectional Regulatory Role of Neuroimmune Interaction in Neurodevelopment and Neurodegenerative Diseases

Neurological disorders pose a major public health challenge worldwide, with neuroimmune interaction emerging as a core regulatory mechanism underlying their pathogenesis. This review highlights the progression from static association to dynamic mechanisms between neuroimmune interaction and neurological diseases, filling the research gap in immune function changes during development and aging. We propose a triple regulatory logic framework, including multicellular crosstalk network, context-dependent signaling pathway switching, and host microenvironmental state, which clarifies the bidirectional regulatory patterns of neuroimmune interaction in physiological neurodevelopment and pathological neurodegeneration. Specifically, the neuroimmune system maintains central nervous system (CNS) homeostasis through four core processes during development, while its dysfunction drives chronic neuroinflammation and neurodegeneration via cascading pathological mechanisms. We further discuss clinical translation bottlenecks and targeted intervention strategies based on this framework, providing a theoretical basis for constructing a stage-specific neuroimmune interaction and regulation theory. This review offers new insights into the pathogenesis of neurological diseases and potential therapeutic targets for clinical practice.