title: Establishment of a cyclic adenosine monophosphate-dependent growing human T-cell line derived from an interleukin-2-dependent cell line.
abstract: An adenosine 3',5'-cyclic monophosphate (cAMP)-dependent growing cell line called CT-Mat was established by the long-term cultivation of an interleukin-2 (IL-2)-dependent human T-cell line, ILT-Mat, in the presence of cholera toxin instead of IL-2. CT-Mat cells can grow in the medium containing either cholera toxin or forskolin or cAMP derivatives. Although the CT-Mat cell line can still grow dependent on IL-2, the forskolin-induced growth of CT-Mat cells was demonstrated not to be mediated by an autocrine mechanism of IL-2 or any other growth factor. The intracellular cAMP level was elevated by treatment with the chemical agents but little by treatment with IL-2. These suggest that cAMP transduces intracellular growth signals different from those through the IL-2 receptor in an IL-2-dependent T-cell line CT-Mat.
authors.affiliation: Department of Microbiology, Tohoku University School of Medicine, Sendai, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Takeshita
authors.forename: K
authors.initials: K
authors.lastname: Ohbo
authors.forename: M
authors.initials: M
authors.lastname: Nakamura
authors.forename: Y
authors.initials: Y
authors.lastname: Goto
authors.forename: K
authors.initials: K
authors.lastname: Sugamura
mesh_terms: D015124:8-Bromo Cyclic Adenosine Monophosphate / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line / Q000166:cytology*; D002772:Cholera Toxin / Q000494:pharmacology; D005576:Colforsin / Q000494:pharmacology; D000242:Cyclic AMP / Q000502:physiology*; D006133:Growth Substances / Q000096:biosynthesis; D006801:Humans; D007376:Interleukin-2 / Q000096:biosynthesis / Q000502:physiology*; D015398:Signal Transduction; D013601:T-Lymphocytes / Q000166:cytology*
chemical_list: D006133:Growth Substances; D007376:Interleukin-2; D005576:Colforsin; D015124:8-Bromo Cyclic Adenosine Monophosphate; D002772:Cholera Toxin; D000242:Cyclic AMP