alexa Tumor-associated immunoglobulins in pulmonary carcinoma.
Medicine

Medicine

Internal Medicine: Open Access

Author(s): Gerstl B, Eng LF, Bigbee JW

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Abstract In view of the uncertainty of location and significance of immunoglobulin in tumors found by elution or rosette formation (as reported in the literature), the presence of IgG, IgM, and IgA in human carcinoma of the lung was studied by means of the peroxidase-antiperoxidase method. Surgically obtained specimens from patients with known survival times were used in this study. Membranous as well as cytoplasmic location of IgG was demonstrated more frequently than was that of IgA or IgM. The number of tumor cells carrying immunoglobulin varied greatly, even within a given case. Albumin could be demonstrated in tumor cells in 10 of 20 specimens, but there was poor correlation with immunoglobuin. In some instances, only the necrotic part of the tumor or the stroma was immunoreactive. The results are discussed and suggest that Fc receptors are not involved in the binding of immunoglobin by pulmonary carcinoma cells.
This article was published in Cancer Res and referenced in Internal Medicine: Open Access

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