Alterations of nuclear pores in preneoplastic and neoplastic rat liver lesions induced by 2-acetylaminofluorene. 1994

S Sugie, and N Yoshimi, and T Tanaka, and H Mori, and G M Williams
Department of Pathology, Gifu University School of Medicine, Japan.

The nuclear pore density and area were measured on freeze-fractured nuclei of ACI/N rat liver altered foci, adenomas and carcinomas induced by 2-acetylaminofluorene, and compared with those of normal hepatocytes. The pore density of nuclei from these preneoplastic and neoplastic lesions was significantly higher than that of hepatocytes, but there was no difference between lesions. The area of nuclear pores of the focus cells did not differ from normal hepatocytes, whereas the areas of pores of adenoma and carcinoma cells were increased. Moreover, the nuclear pore area of carcinomas was significantly greater than that of adenomas. These results suggest that some changes may occur in nuclear pores in the progress of tumorigenesis.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008114 Liver Neoplasms, Experimental Experimentally induced tumors of the LIVER. Hepatoma, Experimental,Hepatoma, Morris,Hepatoma, Novikoff,Experimental Hepatoma,Experimental Hepatomas,Experimental Liver Neoplasms,Hepatomas, Experimental,Neoplasms, Experimental Liver,Experimental Liver Neoplasm,Liver Neoplasm, Experimental,Morris Hepatoma,Novikoff Hepatoma
D008297 Male Males
D009685 Nuclear Envelope The membrane system of the CELL NUCLEUS that surrounds the nucleoplasm. It consists of two concentric membranes separated by the perinuclear space. The structures of the envelope where it opens to the cytoplasm are called the nuclear pores (NUCLEAR PORE). Nuclear Membrane,Envelope, Nuclear,Envelopes, Nuclear,Membrane, Nuclear,Membranes, Nuclear,Nuclear Envelopes,Nuclear Membranes
D011230 Precancerous Conditions Pathological conditions that tend eventually to become malignant. Preneoplastic Conditions,Condition, Preneoplastic,Conditions, Preneoplastic,Preneoplastic Condition,Condition, Precancerous,Conditions, Precancerous,Precancerous Condition
D011912 Rats, Inbred ACI An inbred strain of rat that is widely used in BIOMEDICAL RESEARCH. Applications include the study of spontaneous NEOPLASMS; CHRONIC KIDNEY DISEASES, and CONGENITAL ABNORMALITIES. Rats, Inbred A x C 9935 Irish,Rats, ACI,ACI Rat,ACI Rat, Inbred,ACI Rats,ACI Rats, Inbred,Inbred ACI Rat,Inbred ACI Rats,Rat, ACI,Rat, Inbred ACI
D002467 Cell Nucleus Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) Cell Nuclei,Nuclei, Cell,Nucleus, Cell
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D005614 Freeze Fracturing Preparation for electron microscopy of minute replicas of exposed surfaces of the cell which have been ruptured in the frozen state. The specimen is frozen, then cleaved under high vacuum at the same temperature. The exposed surface is shadowed with carbon and platinum and coated with carbon to obtain a carbon replica. Fracturing, Freeze,Fracturings, Freeze,Freeze Fracturings
D000236 Adenoma A benign epithelial tumor with a glandular organization. Adenoma, Basal Cell,Adenoma, Follicular,Adenoma, Microcystic,Adenoma, Monomorphic,Adenoma, Papillary,Adenoma, Trabecular,Adenomas,Adenomas, Basal Cell,Adenomas, Follicular,Adenomas, Microcystic,Adenomas, Monomorphic,Adenomas, Papillary,Adenomas, Trabecular,Basal Cell Adenoma,Basal Cell Adenomas,Follicular Adenoma,Follicular Adenomas,Microcystic Adenoma,Microcystic Adenomas,Monomorphic Adenoma,Monomorphic Adenomas,Papillary Adenoma,Papillary Adenomas,Trabecular Adenoma,Trabecular Adenomas

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