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Immunological abnormalities in CHARGE syndrome.

Karin Writzl1, Catherine M Cale, Christine M Pierce

  • 1Department of Clinical Genetics, Great Ormond Street Hospital for Children, London, UK.

European Journal of Medical Genetics
|August 9, 2007
PubMed
Summary
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Immune deficiency, particularly severe T-cell deficiency, is a significant but often overlooked aspect of CHARGE syndrome. Evaluating immune function in all CHARGE patients is crucial for better understanding and management.

Area of Science:

  • Immunology
  • Genetics
  • Pediatrics

Background:

  • CHARGE syndrome is a rare genetic disorder with a complex phenotype.
  • Immune deficiencies are recognized but often underdiagnosed in CHARGE syndrome.
  • The genetic basis of CHARGE syndrome involves mutations in the CHD7 gene.

Observation:

  • Two patients with CHARGE syndrome and confirmed CHD7 mutations presented with severe T-cell deficiency.
  • A literature review of 15 CHARGE patients revealed various immunological issues.
  • The spectrum of immune dysfunction included severe and mild T-cell deficiencies, and isolated humoral immune deficiency.

Findings:

  • Immune deficiency is a notable clinical feature in CHARGE syndrome.
  • Severe T-cell deficiency is the most common immunological problem observed.

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  • The precise frequency and characteristics of immune deficiencies in CHARGE syndrome require further investigation.

    • Implications:

    • Routine immune function evaluation is recommended for all individuals diagnosed with CHARGE syndrome.
    • Comprehensive assessment can improve the diagnosis and management of immunodeficiency in CHARGE patients.
    • Further research is needed to establish prognosis and optimal treatment strategies for immune dysfunction in CHARGE syndrome.