title: Antitumor effects of RNA isolated from murine tumors and embryos.
abstract: We describe the antitumor effects of a certain RNA(s) isolated from murine tumors and embryos. A single i.v. injected of 10 to 30 microgram of this RNA(s) induces necrosis, hemorrhages, and regression of solid tumors in the strain of origin; in pregnant mice it is embryotoxic, causing resorption of the embryos, but has no toxic effect upon the tumor-bearing or pregnant host. Its action is highly specific, and its presence in both tumors and embryos suggests that it may result from reexpression of embryonic genes in tumor cells.
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy; D000818:Animals; D000970:Antineoplastic Agents; D020964:Embryo Loss / Q000139:chemically induced; D004622:Embryo, Mammalian / Q000378:metabolism; D005260:Female; D007942:Leukemia, Experimental / Q000188:drug therapy; D008228:Lymphoma, Non-Hodgkin / Q000188:drug therapy; D008325:Mammary Neoplasms, Experimental / Q000188:drug therapy; D051379:Mice; D008815:Mice, Inbred Strains; D009374:Neoplasms, Experimental / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D011247:Pregnancy; D012313:RNA / Q000494:pharmacology*; D012334:RNA, Neoplasm / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D012334:RNA, Neoplasm; D012313:RNA