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Hereditary monocyte esterase deficiency.

G M Markey, H D Alexander, R McConnell

    British Journal of Haematology
    |June 1, 1986
    PubMed
    Summary
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    A rare inherited monocyte abnormality affects esterase staining in three family generations. This cytochemical defect is consistently negative in most monocytes, indicating a potential genetic link.

    Area of Science:

    • Hematology
    • Clinical Cytochemistry
    • Genetics

    Background:

    • Monocytes are crucial white blood cells involved in immune responses.
    • Cytochemical staining, including esterase reactions, aids in diagnosing hematological disorders.
    • Inherited hematological conditions can manifest with unique cellular characteristics.

    Observation:

    • A family spanning three generations exhibits an unusual monocyte cytochemical staining pattern.
    • Specifically, alpha-naphthyl acetate and alpha-naphthyl butyrate esterase reactions are affected.
    • The abnormality is observed in a significant proportion of monocytes within affected individuals.

    Findings:

    • A consistent negative esterase staining reaction was noted in 95% of monocytes in the proband and her son.

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  • 60-70% of monocytes showed negative esterase staining in two out of four grandchildren.
  • This suggests a heritable cytochemical defect impacting monocyte esterase activity.

    • Implications:

    • This inherited abnormality may serve as a biomarker for specific genetic conditions.
    • Understanding this defect could offer insights into monocyte development and function.
    • Further research is warranted to identify the underlying genetic cause and clinical significance.