ERK/MAPK signalling in the developing brain: Perturbations and consequences.

Area of Science:

• Neuroscience
• Cellular Biology
• Developmental Biology

Background:

• The extracellular regulated kinase/microtubule-associated protein kinase (ERK/MAPK) signaling pathway regulates cellular behavior by altering metabolic pathways and gene expression.
• ERK/MAPK signaling is vital for nervous system development, originating from embryonic mesoderm-derived neural progenitor cells.
• Numerous signaling molecules essential for neurodevelopment transmit information via the ERK/MAPK pathway.

Purpose of the Study:

• To review the role of ERK/MAPK signaling in neurodevelopment.
• To discuss structural and behavioral consequences of disrupted ERK/MAPK signaling in cortical development.
• To examine ERK/MAPK's contribution to neurodevelopmental disorders.

Main Methods:

• Literature review of existing research on ERK/MAPK signaling in neurodevelopment.
• Analysis of studies investigating structural and behavioral deficits linked to ERK/MAPK pathway perturbations.
• Examination of the pathway's involvement in the neuropathology of specific neurodevelopmental disorders.

Main Results:

• ERK/MAPK signaling influences gene expression and metabolic pathways, impacting cellular behavior.
• The pathway is essential for the proper development of the nervous system from neural progenitor cells.
• Perturbed ERK/MAPK signaling is associated with structural and behavioral deficits in cortical development.

Conclusions:

• ERK/MAPK signaling plays a fundamental role in neurodevelopment.
• Dysregulation of the ERK/MAPK pathway contributes to the neuropathology of disorders like ASD, Schizophrenia, Fragile X, and ADHD.
• The ERK/MAPK pathway represents a potential therapeutic target for neurodevelopmental disorders, though mechanisms require further elucidation.