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Discoid lupus erythematosus and X-linked chronic granulomatous disease
Insights
X-linked chronic granulomatous disease (CGD) is linked to discoid lupus erythematosus (DLE) in a large family. Female carriers with DLE and infections may benefit from CGD screening.
Area of Science:
- Immunology
- Genetics
- Dermatology
Background:
- X-linked chronic granulomatous disease (CGD) is an inherited disorder affecting leukocyte function.
- Discoid lupus erythematosus (DLE) is a chronic autoimmune skin condition.
Observation:
- A large kindred exhibited X-linked CGD across three generations.
- An association between CGD and DLE was observed within this kindred.
Findings:
- The study suggests recurrent antigenic stimulation in CGD carriers may lead to autoantibody formation, increasing DLE frequency.
- Female carriers of CGD with DLE and a history of suppurative infections are identified as a potential screening group.
Implications:
- The nitroblue tetrazolium (NBT) test is proposed as a screening tool for CGD in at-risk females with DLE.
- Early diagnosis of CGD in female DLE patients can guide management and genetic counseling.
- Understanding the immunological link between CGD and DLE may reveal shared pathogenic mechanisms.
Abstract:
X-linked chronic granulomatous disease (CGD), a defect of leukocyte bactericidal capacity, was seen in three generations of a large kindred. The association of discoid lupus erythematosus (DLE) with CGD was noted. Recurrent antigenic stimulation leading to autoantibody formation may explain the apparently increased frequency of DLE in female carriers of CGD. A screen for CGD, the nitroblue tetrazolium test, is suggested for females with DLE who have experienced suppurative infections or who have a family history of early childhood deaths or recurrent infections.