Insulin-induced cell cycle progression is impaired in Chinese hamster ovary cells overexpressing insulin receptor substrate-3

Yasushi Kaburagi, Ryo Yamashita, Yuzuru Ito, Hitoshi Okochi, Ritsuko Yamamoto-Honda, Kazuki Yasuda, Hisahiko Sekihara, Takehiko Sasazuki, Takashi Kadowaki, Yoshio Yazaki

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Abstract

To analyze the roles of insulin receptor substrate (IRS) proteins in insulin-stimulated cell cycle progression, we examined the functions of rat IRS-1 and IRS-3 in Chinese hamster ovary cells overexpressing the human insulin receptor. In this type of cell overexpressing IRS-1 or IRS-3, we showed that: 1) overexpression of IRS-3, but not IRS-1, suppressed the G1/S transition induced by insulin; 2) IRS-3 was more preferentially localized to the nucleus than IRS-1; 3) phosphorylation of glycogen synthase kinase 3 and MAPK/ERK was unaffected by IRS-3 overexpression, whereas that of protein kinase B was enhanced by either IRS; 4) overexpressed IRS-3 suppressed cyclin D1 expression in response to insulin; 5) among the signaling molecules regulating cyclin D1 expression, activation of the small G protein Ral was unchanged, whereas insulin-induced gene expression of c-myc, a critical component for growth control and cell cycle progression, was suppressed by overexpressed IRS-3; and 6) insulin-induced expression of p21, a cyclin-dependent kinase inhibitor, was decreased by overexpressed IRS-3. These findings imply that: 1) IRS-3 may play a unique role in mitogenesis by inhibiting insulin-stimulated cell cycle progression via a decrease in cyclin D1 and p21 expressions as well as suppression of c-myc mRNA induction in a manner independent of the activation of MAPK, protein kinase B, glycogen synthase kinase 3 and Ral; and 2) the interaction of IRS-3 with nuclear proteins may be involved in this process.

Original languageEnglish
Pages (from-to)5862-5874
Number of pages13
JournalEndocrinology
Volume145
Issue number12
DOIs
Publication statusPublished - Dec 1 2004
Externally publishedYes

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Insulin Receptor Substrate Proteins
Cricetulus
Ovary
Cell Cycle
Insulin
Cyclin D1
Glycogen Synthase Kinase 3
Proto-Oncogene Proteins c-akt
Cyclin-Dependent Kinase Inhibitor p21
Monomeric GTP-Binding Proteins
Mitogen-Activated Protein Kinase Kinases

All Science Journal Classification (ASJC) codes

  • Endocrinology

Cite this

Kaburagi, Y., Yamashita, R., Ito, Y., Okochi, H., Yamamoto-Honda, R., Yasuda, K., ... Yazaki, Y. (2004). Insulin-induced cell cycle progression is impaired in Chinese hamster ovary cells overexpressing insulin receptor substrate-3. Endocrinology, 145(12), 5862-5874. https://doi.org/10.1210/en.2004-0199

Insulin-induced cell cycle progression is impaired in Chinese hamster ovary cells overexpressing insulin receptor substrate-3. / Kaburagi, Yasushi; Yamashita, Ryo; Ito, Yuzuru; Okochi, Hitoshi; Yamamoto-Honda, Ritsuko; Yasuda, Kazuki; Sekihara, Hisahiko; Sasazuki, Takehiko; Kadowaki, Takashi; Yazaki, Yoshio.

In: Endocrinology, Vol. 145, No. 12, 01.12.2004, p. 5862-5874.

Research output: Contribution to journalArticle

Kaburagi, Y, Yamashita, R, Ito, Y, Okochi, H, Yamamoto-Honda, R, Yasuda, K, Sekihara, H, Sasazuki, T, Kadowaki, T & Yazaki, Y 2004, 'Insulin-induced cell cycle progression is impaired in Chinese hamster ovary cells overexpressing insulin receptor substrate-3', Endocrinology, vol. 145, no. 12, pp. 5862-5874. https://doi.org/10.1210/en.2004-0199
Kaburagi, Yasushi ; Yamashita, Ryo ; Ito, Yuzuru ; Okochi, Hitoshi ; Yamamoto-Honda, Ritsuko ; Yasuda, Kazuki ; Sekihara, Hisahiko ; Sasazuki, Takehiko ; Kadowaki, Takashi ; Yazaki, Yoshio. / Insulin-induced cell cycle progression is impaired in Chinese hamster ovary cells overexpressing insulin receptor substrate-3. In: Endocrinology. 2004 ; Vol. 145, No. 12. pp. 5862-5874.
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