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Updated: Jun 5, 2025
The Hypoxic Ischemic Encephalopathy Model of Perinatal Ischemia
Published on: November 19, 2008
The underlying molecular mechanisms of Fyn in neonatal hypoxic-ischaemic encephalopathy
Jiao Zhou1,2, Xiang Lu3, Haichuan Wang4
1Department of Reproductive Medicine Nursing, West China Second University Hospital, Sichuan University, Chengdu, China.
Abstract:
Fyn is a cytoplasmic tyrosine kinase (TK) that is a nonreceptor and a member of the Src family of kinases (SFKs). It is involved in several transduction pathways in the central nervous system (CNS), such as oligodendrocyte development, myelination, axon guidance, and synaptic transmission. Owing to its wide range of activities in the molecular signaling pathways that underpin both neuropathologic and neurodevelopmental events, Fyn has remained of great interest for more than a century. Accumulating preclinical data have highlighted the potential role of Fyn in the pathophysiology of neonatal hypoxic-ischaemic encephalopathy (HIE). By mediating important signaling pathways, Fyn may control glutamate excitotoxicity, promote neuroinflammation and facilitate the death of neurons caused by oxidative stress. In this review, we address new evidence regarding the role of Fyn in the pathogenesis of this condition, with the aim of providing a reference for the development of new strategies to improve the prognosis of neonatal HIE. In addition, we also offer insights into additional Fyn-related molecular mechanisms involved in HIE pathology.
Insights
Fyn kinase plays a key role in neonatal hypoxic-ischaemic encephalopathy (HIE) by influencing excitotoxicity and neuroinflammation. Understanding Fyn
Area of Science:
- Neuroscience
- Molecular Biology
- Biochemistry
Background:
- Fyn is a cytoplasmic tyrosine kinase (TK) and a member of the Src family of kinases (SFKs).
- Fyn is implicated in crucial central nervous system (CNS) processes including oligodendrocyte development, myelination, axon guidance, and synaptic transmission.
- Its involvement in molecular signaling pathways relevant to neurodevelopmental and neuropathologic events makes Fyn a long-standing subject of research interest.
Purpose of the Study:
- To review emerging evidence on the role of Fyn in the pathogenesis of neonatal hypoxic-ischaemic encephalopathy (HIE).
- To provide a reference for developing novel therapeutic strategies to improve HIE outcomes.
- To explore additional Fyn-mediated molecular mechanisms contributing to HIE pathology.
Main Methods:
- This review synthesizes preclinical data and existing literature.
- It focuses on the signaling pathways regulated by Fyn.
- The review examines Fyn's involvement in glutamate excitotoxicity, neuroinflammation, and oxidative stress-induced neuronal death.
Main Results:
- Preclinical data suggest Fyn is a significant factor in HIE pathophysiology.
- Fyn signaling pathways are implicated in controlling glutamate excitotoxicity.
- Fyn may promote neuroinflammation and neuronal death via oxidative stress.
Conclusions:
- Fyn kinase is a critical mediator in the development of neonatal HIE.
- Targeting Fyn-related pathways offers potential for new HIE treatment strategies.
- Further research into Fyn's molecular mechanisms in HIE is warranted to improve patient prognosis.
