[Effects of thermochemotherapy on immunologic function of patients with lip cancer]

To evaluate the effects of thermochemotherapy on the immunologic function of lip cancer patients and to provide a theoretical basis for the clinical application of thermochemotherapy.

Twenty patients were heated by microwave at (42.5 +/- 0.2) degree C for 40 minutes after venoclysis of Pingyangmycin (8 mg) and Methotrexate (20 mg). Each of the patients received the therapy twice a week for 5 weeks. Venous blood was obtained before the first thermochemotherapy and after the tenth thermochemotherapy. Lymphocyte transformation index was examined by 3H-TdR method, and CD4+ and CD8+ T cells were assayed by flow cytometry.

The tumors of the 20 patients were completely extinctive. The lymphocyte transformation index after treatment was significantly higher than that before treatment (P < 0.01). The CD4+ T cells and CD4+/CD8+ after treatment were significantly higher than those before treatment (P < 0.05); the CD8+ T cells after treatment was lower than that before treatment, but there was no statistically significant difference (P > 0.05).

Thermochemotherapy can enhance the lip cancer patient's T lymphocyte immunologic function, which possibly plays an important role in the treatment of lip cancer.