Moyamoya Disease and Spectrums of RNF213 Vasculopathy

Area of Science:

• Neurology
• Genetics
• Vascular Medicine

Background:

• Moyamoya disease (MMD) is a rare cerebrovascular condition defined by intracranial artery stenosis and moyamoya vessels.
• A specific RNF213 gene polymorphism (R4810K) is the primary genetic risk factor for MMD, particularly in East Asian populations.
• MMD is increasingly diagnosed in adults and Western populations, suggesting a broader spectrum of disease.

Purpose of the Study:

• To review the clinical and genetic spectrum of RNF213 vasculopathy.
• To highlight the association of RNF213 variants with MMD and other systemic vasculopathies.
• To emphasize the need for expanded diagnostic and therapeutic approaches.

Main Methods:

• Literature review of studies on RNF213 gene variants and associated vasculopathies.
• Synthesis of clinical data and genetic findings related to RNF213 vasculopathy.
• Analysis of the prevalence and phenotypic diversity of RNF213-associated conditions.

Main Results:

• The RNF213 R4810K variant is associated with MMD and a wider range of vasculopathies.
• RNF213-related disorders manifest in various populations, including adults and Western individuals.
• Conditions such as intracranial atherosclerosis and systemic vasculopathies (e.g., pulmonary and renal artery stenosis) are linked to RNF213 variants.

Conclusions:

• The RNF213 gene plays a crucial role in a spectrum of vascular diseases beyond classical MMD.
• Recognition of RNF213 vasculopathy requires considering diverse clinical presentations and populations.
• Further research and collaborative efforts are essential for improved pathophysiology-based diagnosis and treatment.