A Comparison of Serum Immunoglobulins from Patients with Non-neoplastic Prostates and Prostatic Carcinoma

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Abstract
The major immunoglobulin [Ig] classes were surveyed among 23 patients with carcinoma of the prostate, 14 patients with clinically manifest benign prostatic hyperplasia and 23 healthy, elderly men without evidence of prostatic disease to determine if differences in Ig levels existed. Levels of IgG, IgA and IgM were determined by single radial immunodiffusion. Serum IgM levels were depressed in patients with all stages of carcinoma of the prostate as compared to levels in controls. These depressions were significant statistically for the tumor groups considered as a whole and for patients with stages A and B tumors; the depression of IgM levels in patients with stages C and D tumors bordered on statistical significance. Serum IgG levels were depressed significantly in patients with stages A and B carcinoma of the prostate as compared to controls. Levels in patients with stages C and D lesions exceeded control levels but the difference was not statistically significant. Serum IgA levels in patients with stages A and B tumors were comparable to control levels but levels in patients with stages C and D lesions were significantly higher than controls.