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Tumor necrosis factor-alpha activates nuclear factor kappa B and induces manganous superoxide dismutase and phosphodiesterase mRNA in human papillary thyroid carcinoma cells. 1992

X P Pang, and N S Ross, and M Park, and G J Juillard, and T M Stanley, and J M Hershman
Department of Medicine, West Los Angeles Veterans Administration Medical Center, California 90073.

Human papillary thyroid carcinoma (PTC) has a relatively benign prognosis despite a high frequency of lymphatic metastasis. This suggests that local anticancer factors, generated in lymph nodes, control PTC progression. The cytokine, tumor necrosis factor-alpha (TNF-alpha), may be one such factor. We have previously shown that a human PTC cell line (NP-PTC) has high affinity TNF-alpha receptors. We now report on the action of TNF-alpha in these cells. TNF-alpha decreased [3H]thymidine incorporation as well as cellular DNA content and cell number in a dose-dependent manner. The abundance of phosphodiesterase and manganous superoxide dismutase mRNA species was increased in a time- and dose-dependent manner in the NP-PTC cells after TNF-alpha treatment. TNF-alpha activated NF-kappa B, a nuclear factor thought to mediate multiple actions of TNF-alpha, in these cells with a maximum effect observed after 30 min of treatment. Thus, TNF-alpha has an antiproliferative action on NP-PTC cells, despite its ability to induce the accumulation of mRNA that encodes an enzyme (manganous superoxide dismutase), thought to be cytoprotective. The net antiproliferative effect must therefore be explained by a balance of protective and tumoricidal or static effects that ultimately result in control of tumor spread. These antiproliferative effects may be in part mediated by NF-kappa B and PDE.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010727 Phosphoric Diester Hydrolases A class of enzymes that catalyze the hydrolysis of one of the two ester bonds in a phosphodiester compound. EC 3.1.4. Phosphodiesterase,Phosphodiesterases,Hydrolases, Phosphoric Diester
D002291 Carcinoma, Papillary A malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. (Stedman, 25th ed) Carcinomas, Papillary,Papillary Carcinoma,Papillary Carcinomas
D002455 Cell Division The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION. M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D004273 DNA, Neoplasm DNA present in neoplastic tissue. Neoplasm DNA
D004790 Enzyme Induction An increase in the rate of synthesis of an enzyme due to the presence of an inducer which acts to derepress the gene responsible for enzyme synthesis. Induction, Enzyme
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated

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