The role of complement in neurological and neuropsychiatric diseases
1a Institute of Infection and Immunity, School of Medicine, Cardiff University, Henry Wellcome Building, Heath Park, Cardiff CF144XN, UK.
Insights
The complement system, crucial for immunity and inflammation, drives disease pathology in the central and peripheral nervous systems. Understanding its role aids diagnosis and treatment for neurological and psychiatric disorders.
Area of Science:
- Immunology
- Neuroscience
- Pathology
Background:
- The complement system is a key part of innate immunity and inflammation.
- It plays a role in host defense but can also cause disease by driving inflammation and cell damage.
- Complement is increasingly implicated in central nervous system (CNS) and peripheral nervous system (PNS) diseases, including infectious, autoimmune, degenerative, and neuropsychiatric disorders.
Purpose of the Study:
- To review the evidence linking complement to CNS and PNS diseases.
- To outline how this knowledge can improve diagnosis and patient outcomes.
Main Methods:
- Literature review of studies implicating complement in neurological and psychiatric diseases.
Main Results:
- The complement system is a significant factor in the pathogenesis of various CNS and PNS disorders.
- Emerging complement-targeting drugs and biomarkers offer new therapeutic and diagnostic avenues.
Conclusions:
- Complement's role in disease pathogenesis is increasingly recognized.
- Targeting the complement system and utilizing complement analytes hold promise for diagnosing and treating neurological and psychiatric conditions.
Abstract:
The complement system is a major component of innate immunity and a potent driver of inflammation. It has key roles in host defense against pathogens but can also contribute to pathology by driving inflammation and cell damage in diverse diseases. Complement has emerged as an important factor in the pathogenesis of numerous diseases of the CNS and PNS, including infectious, autoimmune and degenerative disorders, and is increasingly implicated in neuropsychiatric disease. Establishing the roles and relevance of complement in disease pathogenesis has become ever more important in recent years as new drugs targeting the complement system have reached the clinic, and the potential for using complement analytes as disease biomarkers has been recognized. In this brief review, the author summarizes the evidence implicating complement in these diseases and outlines ways in which this new understanding can be used to aid diagnosis and improve outcome.
More Related Videos
Related Concept Videos
Complement System
Disorders of the Nervous Tissue
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Complementation Tests
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
Role of Neurotransmitters in Memory
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
Gut-Brain Axis
Parkinson's Disease: Overview


