TRPV4-pathy, a novel channelopathy affecting diverse systems

Area of Science:

• Genetics
• Molecular Biology
• Channelopathies

Background:

• Transient receptor potential cation channel, subfamily V, member 4 (TRPV4) is a calcium-permeable nonselective cation channel.
• TRPV4 mutations are linked to autosomal-dominant skeletal dysplasias (e.g., Kozlowski, Maroteaux types) and neuromuscular diseases (e.g., spinal muscular atrophy, hereditary motor and sensory neuropathy type IIC).

Purpose of the Study:

• To review the spectrum of TRPV4 mutations.
• To discuss the phenotypic complexity and pathogenic mechanisms of TRPV4-pathy.
• To explore the potential for TRPV4-pathy to include other monogenic and polygenic diseases.

Main Methods:

• Literature review of studies on TRPV4 mutations and associated diseases.
• Analysis of the phenotypic spectrum and genetic basis of TRPV4-related disorders.
• Discussion of pathogenic mechanisms underlying TRPV4 channelopathies.

Main Results:

• TRPV4 mutations are associated with a diverse range of skeletal and neuromuscular conditions.
• These conditions collectively form a novel channelopathy termed TRPV4-pathy.
• TRPV4-pathy may extend to polygenic traits like serum sodium concentration and chronic obstructive pulmonary disease.

Conclusions:

• TRPV4 mutations cause a spectrum of skeletal and neuromuscular diseases, defining TRPV4-pathy.
• Understanding TRPV4-pathy's mechanisms is crucial for diagnosing and potentially treating these conditions.
• The scope of TRPV4-pathy may expand to include other genetic disorders.