Production of granulocyte-macrophage colony-stimulating factor in two patients with lung cancer, leukocytosis, and eosinophilia

C. L. Sawyers, D. W. Golde, S. Quan, Stephen D Nimer

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Abstract

Leukocytosis in association with malignancy has been well described, but the cause is not known. One potential explanation is production of a colony- stimulating factor by the tumor, and this has been demonstrated in vitro. The authors report two patients with lung cancer, leukocytosis, and eosinophilia. The pleural fluid of both patients contained malignant cells and biologically active granulocyte-macrophage colony-stimulating factor (GM-CSF), as demonstrated by radioimmunoassay, enzyme-linked immunosorbent assay (ELISA), and colony-forming unit-granulocyte-macrophage (CFU-GM) assay. To determine whether GM-CSF is normally detectable in pleural fluid, the authors performed assays on an additional 11 patients with pleural effusions of various origins but without peripheral blood leukocytosis and eosinophilia; only 1 patient had a detectable level of GM-CSF (i.e., ≥ 0.1 ng/ml). Because GM-CSF usually is not present in pleural fluid, the authors postulate that the high levels of GM-CSF found in the pleural fluid of these two patients was produced by their tumors, and production of GM-CSF by their lung cancers likely caused the leukocytosis with eosinophilia.

Original languageEnglish
Pages (from-to)1342-1346
Number of pages5
JournalCancer
Volume69
Issue number6
StatePublished - Jan 1 1992
Externally publishedYes

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Leukocytosis
Eosinophilia
Granulocyte-Macrophage Colony-Stimulating Factor
Lung Neoplasms
Colony-Stimulating Factors
Neoplasms
Granulocyte-Macrophage Progenitor Cells
Pleural Effusion
Radioimmunoassay
Enzyme-Linked Immunosorbent Assay

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Production of granulocyte-macrophage colony-stimulating factor in two patients with lung cancer, leukocytosis, and eosinophilia. / Sawyers, C. L.; Golde, D. W.; Quan, S.; Nimer, Stephen D.

In: Cancer, Vol. 69, No. 6, 01.01.1992, p. 1342-1346.

Research output: Contribution to journalArticle

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AB - Leukocytosis in association with malignancy has been well described, but the cause is not known. One potential explanation is production of a colony- stimulating factor by the tumor, and this has been demonstrated in vitro. The authors report two patients with lung cancer, leukocytosis, and eosinophilia. The pleural fluid of both patients contained malignant cells and biologically active granulocyte-macrophage colony-stimulating factor (GM-CSF), as demonstrated by radioimmunoassay, enzyme-linked immunosorbent assay (ELISA), and colony-forming unit-granulocyte-macrophage (CFU-GM) assay. To determine whether GM-CSF is normally detectable in pleural fluid, the authors performed assays on an additional 11 patients with pleural effusions of various origins but without peripheral blood leukocytosis and eosinophilia; only 1 patient had a detectable level of GM-CSF (i.e., ≥ 0.1 ng/ml). Because GM-CSF usually is not present in pleural fluid, the authors postulate that the high levels of GM-CSF found in the pleural fluid of these two patients was produced by their tumors, and production of GM-CSF by their lung cancers likely caused the leukocytosis with eosinophilia.

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