Matzku S, Zöller M, Schulz U, Dietze W, Barth H O, Saeger H D, Price M R
J Natl Cancer Inst. 1980 Jun;64(6):1345-8. doi: 10.1093/jnci/64.6.1345.
Tumor extracts varying in carcinoembryonic antigen (CEA) content (0.4--2,280 ng/mg protein) did not affect the reactivity of cancer patients' leukocytes in the leukocyte migration inhibition test (LMIT). In addition, variations in the plasma CEA levels of tumor-bearing leukocyte donors did not influence the frequency of significant LMIT reactivity.