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Related Experiment Videos

New familial defect in microbicidal function of polymorphonuclear leucocytes.

J W van der Meer, T L van Zwet, R van Furth

    Lancet (London, England)
    |October 4, 1975
    PubMed
    Summary

    A rare familial disorder impairs white blood cell function, leading to severe, recurrent infections in siblings. This defect in intracellular killing suggests a previously unreported immune deficiency syndrome.

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    Area of Science:

    • Immunology
    • Genetics
    • Pediatrics

    Background:

    • Recurrent severe infections in childhood can indicate underlying immune system dysfunction.
    • Defects in the ability of white blood cells to kill pathogens (intracellular killing) are a known cause of immunodeficiency.
    • Previous research has identified various syndromes associated with abnormal leukocyte function.

    Observation:

    • A family with recurrent severe infections in multiple siblings (two confirmed, one probable).
    • Affected individuals exhibited extremely high white-blood-cell counts during infection episodes.
    • The core issue identified was a defect in the cells' intracellular killing capacity.

    Findings:

    • The familial disorder is characterized by impaired phagocyte intracellular killing.

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  • The condition presents with recurrent severe infections from an early age.
  • Elevated white-blood-cell counts were noted during infectious exacerbations.

    • Implications:

    • This case suggests a novel genetic defect in immune function.
    • Further research is needed to elucidate the specific molecular mechanisms.
    • Highlights the importance of investigating familial patterns in unexplained immune deficiencies.