Changes in rat connective tissue associated with the development of tumors caused by implantation of cellophane

Summary Small pieces of cellophane and whole cellophane films were introduced subcutaneously in rats. Not a single tumor appeared in rats in which ground cellophane was introduced. In rats in whom whole cellophane films (1×3 cm, 2×3 cm and 7×2.5 cm in size) were implanted the tumors appeared correspondingly in 3.2, 16.6, and 16.6% of the animals.Presented by Active Member of the Akad. Med. Nauk SSSR A. D. Timofeevskii Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 52, No. 12, pp. 79–84, December, 1961