What question did this study set out to answer?

To elucidate the immunological pathogenesis of levamisole-induced agranulocytosis and identify potential predictive markers for acute neutropenia.

September 1, 1980Blood

Studies on levamisole--induced agranulocytosis

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Authors

JTJS ThompsonNebraska Medical Center JHJM HerbickUniversity of Iowa LKLW KlassenLeiden University

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Implication

Laboratory evaluation reveals IgM granulocytotoxic antibodies in levamisole-treated neutropenic patients, suggesting prospective antibody screening can identify high-risk individuals.

Key Points

To elucidate the immunological pathogenesis of levamisole-induced agranulocytosis and identify potential predictive markers for acute neutropenia.
Tested serum from 10 acutely neutropenic patients receiving levamisole using fluorochromatic microgranulocytotoxicity (GCY) and leukoagglutination assays.
Characterized antibody target specificity across unrelated granulocytes, monocytes, T and B lymphocytes, and the K-562 myeloid cell line.
Assayed for circulating antigen-antibody complexes, cold autoantibodies, and drug-dependent hapten mechanisms via in vitro mixing.
Microgranulocytotoxicity tests detected cytotoxic IgM antibodies in 10 of 10 acutely neutropenic patients, which reacted with 100% of unrelated granulocytes but spared T and B lymphocytes.
Assays for leukoagglutination, immune complexes, cold autoantibodies, and in vitro hapten-dependent cytotoxicity were negative.
Granulocytotoxic antibodies were identified 2 to 3 months prior to the onset of agranulocytosis in 2 patients followed longitudinally.

Cite This Study

Thompson et al. (1980) studied this question.

synapsesocial.com/papers/6a8d005e551dbf60cd71bd62 https://doi.org/10.1182/blood.v56.3.388.bloodjournal563388

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Implication

Laboratory evaluation reveals IgM granulocytotoxic antibodies in levamisole-treated neutropenic patients, suggesting prospective antibody screening can identify high-risk individuals.

Studies on levamisole--induced agranulocytosis

Discussion

Member takes

Implication

Key Points

Cite This Study

Studies on levamisole--induced agranulocytosis

Discussion

Member takes

Implication

Key Points

Cite This Study

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