DOCK8 deficiency in six Iranian patients

Area of Science:

• Immunology
• Genetics
• Pediatrics

Background:

• DOCK8 deficiency is a rare autosomal recessive combined immunodeficiency.
• It presents with characteristic features like high IgE, eosinophilia, and severe eczema.
• The condition is more prevalent in populations with higher consanguinity rates.

Observation:

• Patients experience extensive cutaneous viral infections and recurrent respiratory bacterial infections.
• The clinical manifestations highlight a significant impairment in immune function.

Findings:

• Molecular diagnosis of the DOCK8 gene is essential for identifying affected individuals.
• This genetic testing facilitates early and accurate diagnosis.

Implications:

• Timely diagnosis through molecular methods enables prompt hematopoietic stem cell transplantation (HSCT).
• Early intervention via HSCT can mitigate the severe, deleterious consequences of DOCK8 deficiency.
• Understanding DOCK8's role is vital for managing this severe combined immunodeficiency.