Raziuddin S, Abu-Eshy S, Sheikha A. Peripheral T-cell lymphomas. Immunoregulatory cytokine (interleukin-2, interleukin-4, and interferon-gamma) abnormalities and autologous mixed lymphocyte reaction.
Cancer 1994;
74:2843-9. [PMID:
7954246 DOI:
10.1002/1097-0142(19941115)74:10<2843::aid-cncr2820741017>3.0.co;2-o]
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Abstract
BACKGROUND
Cytokines are the most important secretions of the immune system and have a wide range of immunoregulatory functions in various immune disorders and T-cell malignancy. The authors have determined that characteristic enhanced autologous mixed lymphocyte reaction (AMLR) of the lymph node-derived malignant T-cells from peripheral T-cell lymphomas is a function of the T-cell derived cytokines interleukin (IL)-2, IL-4, and interferon-gamma (IFN-tau).
METHODS
Autologous mixed lymphocyte reaction assay was performed by the standard proliferative response (3H-thymidine incorporation), by culturing autologous lymph node-derived or blood-purified T-cells with autologous blood-purified mitomycin-c treated non-T-cells. The production of IL-2, IL-4, and IFN-tau in the AMLR cultures was determined by bioassay or enzyme immunoassays.
RESULTS
Enhanced IL-2 and IFN-tau but deficient IL-4 production is the most characteristic and unique feature of the augmented AMLR in peripheral T-cell lymphomas.
CONCLUSION
The immunoregulatory aberrations in lymph node-derived malignant T-cells that produce highly elevated IL-2 and IFN-tau but decreased IL-4 during augmented AMLR may play an important role in immune dysfunction in this neoplasm (peripheral T-cell lymphomas).
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