Antibodies to cultured tumor cells detected in sera of renal cell carcinoma patients by a quantitative avidin-biotin method

The Journal of Urology
J B deKernionU E Studer

Abstract

Antibodies reacting with the tumor cell line RC-Pa were measured by a quantitative avidin-biotin complex method. Sera of renal cell carcinoma patients, patients with other types of cancer and healthy donors were analyzed. Of 71 sera from renal cell carcinoma patients 67 (94 per cent) were classified as showing renal cell carcinoma, while 32 of 36 sera (89 per cent) from healthy subjects were classified as showing no renal cell carcinoma. Four of 21 serum specimens (19 per cent) from individuals with other than renal cancer were misclassified. Furthermore, sera from renal carcinoma patients immunized with a mixture of autologous tumor cells and Corynebacterium parvum showed a marked increase in reactivity compared to those from patients receiving progesterone. The results indicate that this assay might become useful to detect or monitor renal cell carcinoma.

References

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