Genetic disorders of cellular trafficking.

Area of Science:

• Cellular Biology
• Genetics
• Pathophysiology

Background:

• Cellular trafficking is vital for biological functions.
• Mutations in 346 genes are linked to cellular trafficking disorders.
• Recent discoveries have expanded the understanding of these disorders beyond membrane trafficking.

Purpose of the Study:

• To propose a redesigned classification for cellular trafficking disorders.
• To integrate biological mechanisms and clinical presentations into new categories.
• To review recent pathophysiological findings, disorders, and phenotypes.

Main Methods:

• Literature review and synthesis of recent findings.
• Categorization based on biological mechanisms: membrane trafficking, membrane contact sites, autophagy, and cytoskeleton-related processes.
• Analysis of clinical presentations and affected tissues.

Main Results:

• A proposed classification system for cellular trafficking disorders.
• Identification of newly described diseases and biological pathways.
• The nervous system is particularly susceptible to these disorders.

Conclusions:

• The classification provides a framework for understanding the expanding field of cellular trafficking disorders.
• Recognizing diverse biological mechanisms is crucial for accurate diagnosis and treatment.
• Further research is needed to elucidate the specific vulnerabilities of the nervous system.