Chedíak-Higashi Syndrome: Hair-to-toe spectrum.

Area of Science:

• Genetics and Molecular Biology
• Immunology
• Neurology

Background:

• Chediak-Higashi Syndrome (CHS) is a rare autosomal recessive disorder.
• Mutations in the Lysosomal Trafficking Regulator (LYST) gene impair lysosomal function.
• CHS affects immune cells, melanocytes, and neurons, leading to diverse clinical manifestations.

Purpose of the Study:

• To provide an in-depth review of Chediak-Higashi Syndrome.
• To cover epidemiology, clinical presentation, molecular genetics, diagnostics, and management.
• To emphasize the need for a multidisciplinary approach.

Main Methods:

• Literature review of CHS studies.
• Analysis of clinical, genetic, and management data.
• Synthesis of information on diagnostic challenges and treatment strategies.

Main Results:

• CHS presents with variable severity based on LYST mutation type.
• Classic CHS involves severe immunodeficiency and high risk of HLH.
• Atypical CHS shows milder immune symptoms but progressive neurological decline.
• Diagnosis requires clinical evaluation, blood smear analysis, and genetic testing.
• Hematopoietic stem cell transplantation (HSCT) is key for immune stabilization.
• Neurological symptoms often persist or develop even after HSCT.

Conclusions:

• CHS management necessitates a comprehensive, multidisciplinary strategy.
• Early diagnosis and timely HSCT are crucial for improving CHS patient outcomes.
• Ongoing supportive care is essential for managing neurological complications in CHS.