泌尿性器悪性腫瘍患者における全血培養法によるリンパ球のPHAに対する反応の研究

抄録

A slight modification of the whole blood culture method designed by Pellegrino, and Mizoguchi has been used in this study. The degree of lymphocyte transformation induced by PHA was determined by estimating ³H-thymidine uptake, and the rate of blastogenesis was expressed as stimulation index (S. I.).
The response was studied in normal individuals, and patients with urologic cancers and other diseases. Furthermore, it was investigated under certain conditions that were designed for studying the presence of humoral factors concerning the cellular immunity mechanism.
The results obtained are as follows:
1. In 60 mormal individuals ranging in age from 3 to 80, their S. I. had a tendency to decrease with of age.
2. In a group of 86 patients with urologic diseases, most of the S. I. of patients with the neoplasms revealed low values as compared with those of the non-malignant patients.
3. In a group of 29 postoperative bladder cancer patients, their S. I.'s were considerably lower in recurrent patients than in non-recurrent patients.
4. In a group composed of 13 normal individuals and 15 patients with the malignancies, addition of a pooled serum from over 130 persons with blood group AB to their rinsed blood cell specimens without serum factors resulted in a marked decrease of S. I. as compared with that of autologous serum.
5. In 14 cancer patients, whose S. I.'s were less than 60 by the whole blood culture technique, the mixtures of their rinsed blood cell specimens and each serum from 5 persons with blood group AB resulted in a considerable increase of S. I.
6. In the same matching of blood group, the addition of each serum from 13 patients with the malignancies, whose S. I.'s were less than 60, to each rinsed blood cell specimen obtained from 15 normal individuals tended to decrease their original S. I.
7. The slightly modified blood culture method was considered to be a useful and convenient procedure to study immune deficiencies.