Folate Receptor Alpha (FRα) and the Developing Brain: From Molecular Function to Neurodevelopmental Outcomes

Area of Science:

• Neuroscience
• Biochemistry
• Developmental Biology

Background:

• Folate receptor alpha (FRα) is a key transporter of folate (vitamin B9) into the central nervous system (CNS).
• FRα plays vital roles beyond transport, including modulating signaling pathways and gene transcription.
• Dysfunctional FRα can disrupt CNS folate availability, impacting brain development and neurological function.

Purpose of the Study:

• To review the multifaceted roles of FRα in neuronal and glial differentiation, CNS maturation, and neural plasticity.
• To examine the association between impaired FRα function and developmental and neuropsychiatric conditions.
• To highlight the need for further research on FRα autoantibodies and folate supplementation therapies.

Main Methods:

• This is a narrative review synthesizing existing knowledge on FRα.
• Literature search and analysis of studies on FRα function and its clinical implications.
• Examination of the connection between FRα, folate metabolism, and neurodevelopmental outcomes.

Main Results:

• FRα is essential for delivering folate to the CNS, supporting critical metabolic pathways.
• FRα's functions extend to regulating cellular processes and gene expression.
• Disruptions in FRα are implicated in various developmental abnormalities and neurological dysfunctions.

Conclusions:

• FRα is a critical regulator of cellular fate and a molecular link between folate metabolism and brain development.
• Impaired FRα function is associated with a range of neurodevelopmental and neuropsychiatric disorders.
• Further research is warranted to explore the diagnostic potential of FRα autoantibodies and therapeutic strategies involving folate supplementation.