[Effect of interleukin-2 on the growth of malignant soft tissue tumor explants in diffusion chambers]

Interleukin-2 is studied for its effect on proliferation of cultured tumour cells in vivo and on the nature of infiltration of malignant tumours explants of human soft tissues. On the basis of spheroid formation phenomenon and a number of morphological criteria three main types of reaction differing in inhibition or stimulation of the tumour growth, time of formation and the number of spheroids formed, manifestation of lymphocytic infiltration and nature of lymphocytes location on the filter have been distinguished.