Neural cell competition sculpting brain from cradle to grave
Yu Zheng Li1, Lisen Gao1,2, Xue-Lian Sun1,2
1State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
National Science Review
|May 1, 2025
Summary
Neural cell competition (NCC) eliminates weaker cells to maintain brain health and function. Dysregulation of NCC contributes to neurological disorders, aging, and brain tumors, highlighting its therapeutic potential.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Cell-cell competition is a Darwinian process shaping tissue architecture and function in multicellular organisms.
- Neuronal competition specifically refines neural networks for sensory, motor, and cognitive functions.
- Limited understanding exists regarding cell competition across diverse neural cell types in development and disease.
Purpose of the Study:
- To review recent advances in neural cell competition (NCC).
- To explore the mechanisms and functions of NCC in various neural cell types.
- To discuss the implications of NCC in physiological and pathological contexts.
Main Methods:
- Literature review of recent studies on neural cell competition.
- Analysis of mechanisms and functions across neural progenitors, neurons, astrocytes, oligodendrocytes, and microglia.
- Synthesis of findings related to developmental and pathological roles of NCC.
Main Results:
- Physiological NCC regulates neural cell survival, proliferation, arborization, organization, function, and territorial colonization.
- Dysregulated NCC is implicated in neurodevelopmental disorders, accelerated aging, and neurodegenerative diseases.
- NCC contributes to brain tumor progression.
Conclusions:
- Neural cell competition is a fundamental process in brain development and maintenance.
- Aberrant NCC underlies various neurological conditions, from developmental disorders to aging and cancer.
- Targeting NCC mechanisms offers potential therapeutic strategies for cognitive enhancement and disease treatment.
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