Immunosuppressive acidic protein in malignant diseases. Clinical relevance?

Stefan Glück, Wolf Köster

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The immunosuppressive acidic protein (IAP) has been described as a tumor associated marker in some solid tumors and hematologic diseases. To define the clinical relevance the authors determined the serum IAP levels in 194 patients with malignancies before initiation of therapy, 14 patients with idiopathic thrombocytopenic purpura (ITP), 28 patients with bacterial pneumonia, and 23 healthy volunteers. Immunosuppressive acidic protein was measured by radial immunodiffusion. The mean value of our controls was 405 ± 48 μg/ml. This is consistent with published data. The mean values for patients with malignancies varied from 554 μg/ml to 698 μg/ml. These are only marginally higher than those observed for the controls. In contrast patients with bacterial pneumonia demonstrated significantly elevated values (1038 ± 261 μg/ml). The authors conclude that IAP cannot be used as diagnostic marker for the malignant diseases examined in this study.

Original languageEnglish (US)
Pages (from-to)610-612
Number of pages3
Issue number3
StatePublished - Feb 1 1991

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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