Interactions between Ras and Rap signaling pathways during neurodevelopment in health and disease

Area of Science:

• Neuroscience
• Molecular Biology
• Genetics

Background:

• Ras GTPases regulate fundamental cellular processes like proliferation, adhesion, and morphology, essential for tissue development.
• Disruptions in these processes negatively impact nervous system development, leading to various neurological disorders.
• Genetic mutations in Ras and Rap GTPase pathways are implicated in autism, neurofibromatosis, intellectual disability, epilepsy, and schizophrenia.

Purpose of the Study:

• To review the presynaptic and postsynaptic functions of Ras and Rap GTPases.
• To highlight their roles in synapse formation and plasticity.
• To discuss the link between disease-related mutations in these pathways and human disorders.

Main Methods:

• Literature review focusing on Ras and Rap GTPase functions.
• Analysis of genomic data linking mutations to disorders.
• Synthesis of recent findings on pathway interactions.

Main Results:

• Ras and Rap GTPases play critical roles in synapse development and plasticity.
• Genomic studies reveal disease-associated mutations in these GTPases.
• Emerging evidence shows molecular crosstalk between Ras and Rap pathways.

Conclusions:

• Understanding Ras and Rap GTPase functions and their interactions is key to deciphering neurodevelopmental disorders.
• Molecular insights into these pathways may illuminate the mechanisms underlying neurological conditions.