K_Ca-Related Neurological Disorders: Phenotypic Spectrum and Therapeutic Indications

Area of Science:

• Neuroscience
• Molecular Biology
• Genetics

Background:

• Potassium channelopathies are linked to neurological disorders, but mechanisms and clinical features remain unclear.
• Alterations in calcium-activated potassium channels (K_Ca) are implicated in various neurological conditions.
• A systematic summary of K_Ca channel involvement in neurological diseases is lacking.

Approach:

• Reviewed molecular and cellular properties of big (BK), small (SK), and intermediate (IK) conductance K_Ca channels.
• Comprehensively analyzed loss- and gain-of-function mutations in K_Ca channels and their disease-specific mutation sites.
• Examined current pharmaceutical strategies targeting K_Ca channels for neurological disorders.

Key Points:

• Detailed the molecular and cellular characteristics of BK, SK, and IK K_Ca channel subtypes.
• Expanded the understanding of the phenotypic-genotypic spectrum in K_Ca-related neurological disorders by cataloging mutations.
• Identified K_Ca channel mutations associated with specific neurological conditions.

Conclusions:

• Provides a comprehensive overview of K_Ca channelopathies in neurological disorders.
• Highlights the importance of understanding K_Ca channel mutations for diagnosis and treatment.
• Offers insights into novel drug discovery for anti-seizure medications targeting K_Ca channels.