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  Reduced expression of the cytokine transducer gp130 inhibits hormone secretion, cell growth, and tumor development of pituitary lactosomatotrophic GH3 cells

Castro, C., Giacomini, D., Nagashima, A., Onofri, C., Graciarena, M., Kobayashi, K., Paez-Pereda, M., Renner, U., Stalla, G., & Arzt, E. (2003). Reduced expression of the cytokine transducer gp130 inhibits hormone secretion, cell growth, and tumor development of pituitary lactosomatotrophic GH3 cells. Endocrinology, 144(2), 693-700.

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資料種別: 学術論文
その他のタイトル : Endocrinology

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 作成者:
Castro, CP, 著者
Giacomini, D, 著者
Nagashima, AC, 著者
Onofri, C, 著者
Graciarena, M, 著者
Kobayashi, K, 著者
Paez-Pereda, M1, 著者
Renner, U1, 著者
Stalla, GK1, 著者
Arzt, E, 著者
所属:
1Max Planck Institute of Psychiatry, Max Planck Society, ou_1607137              

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 要旨: Two of the most potent cytokines that regulate anterior pituitary cell function are leukemia inhibitory factor and IL- 6. These and others like IL-11 and ciliary neurotrophic factor are referred to as the gp130 cytokines because they share the gp130 glycoprotein as a common receptor initial signal transducer. We and others have shown that gp130 cytokines and their receptors are expressed and functional in normal and tumoral anterior pituitary cells. To study the role of gp130 cytokines in tumorigenic process, we generated gp130 cDNA gp130 sense and gp130 antisense (gp130-AS) transfected stable clones derived from lactosomatotroph GH3 cells. We examined hormone secretion and cell proliferation of these clones as well as their tumorigenic properties in athymic nude mice. Although gp130-AS clones, which have low gp130 levels and impaired signal transducer and activator of transcription 3 activity and suppressor of cytokine signaling-3 expression, showed reduced proliferation and hormone secretion (GH and prolactin) in response to gp130 cytokines, they had a. normal response to gp130-independent stimuli. Moreover, gp130-AS clones showed a severely impaired in vivo tumor development. In contrast, the overexpressing gp130 clones (gp130 sense) showed no differences, compared with cells transfected with control vector. Thus, the present study provides new evidence supporting a link between gp130 and pituitary abnormal grow

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言語: eng - English
 日付: 2003-02
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: 査読あり
 識別子(DOI, ISBNなど): eDoc: 4002
ISI: 000180633800034
 学位: -

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出版物 1

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出版物名: Endocrinology
  出版物の別名 : Endocrinology
種別: 学術雑誌
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出版社, 出版地: -
ページ: - 巻号: 144 (2) 通巻号: - 開始・終了ページ: 693 - 700 識別子(ISBN, ISSN, DOIなど): ISSN: 0013-7227