Cited by 584Cytokine Signaling Pathways and InteractionsT-cell and B-cell ImmunologyPsoriasis: Treatment and Pathogenesis

Stat3 Activation Is Responsible for IL-6-Dependent T Cell Proliferation Through Preventing Apoptosis: Generation and Characterization of T Cell-Specific Stat3-Deficient Mice

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Takeda, Kiyoshi, Kaisho, Tsuneyasu, Yoshida, Nobuaki, Takeda, Junji, Kishimoto, Tadamitsu, Akira, Shizuo·1998·The Journal of Immunology

Abstract

Stat3, a member of STAT, is activated by a variety of cytokines such as IL-6 family of cytokines, granulocyte CSF, epidermal growth factor, and leptin. A recent study with mice genetically deficient in the Stat3 gene has revealed its important role in the early embryogenesis. To assess the function of Stat3 in adult tissues, we disrupted the Stat3 gene specifically in T cells by conditional gene targeting using Cre-loxP system. In Stat3-deficient T cells, IL-6-induced proliferation was severely impaired. IL-6 did not enhance cell cycle progression, but prevented apoptosis of normal T cells. In contrast, IL-6 did not prevent apoptosis of Stat3-deficient T cells. Antiapoptotic protein, Bcl-2, was normally up-regulated in response to IL-6 even in Stat3-deficient T cells. These results demonstrate that Stat3 activation is involved in IL-6-dependent T cell proliferation through prevention of apoptosis independently of Bcl-2.

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  1. Takahama, Y., K. Ohishi, Y. Tokoro, T. Sugawara, Y. Yoshimura, M. Okabe, T. Kinoshita, and J. Takeda. 1998. Functional competence of T cells in the ab- sence of glycosylphosphatidylinositol-anchored proteins caused by T cell-specific disruption of the Pig-a gene. Eur. J. Immunol. In press.

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Authors
Takeda, K., Kaisho, T., Yoshida, N., Takeda, J., Kishimoto, T., & Akira, S.
Affiliations
  • Hyogo Medical University (JP)
  • Research Institute, Osaka Maternal and Child Health Center , Izumi, Osaka ,
  • The University of Osaka (JP)
Venue
The Journal of Immunology
Published
1998-11-01
Volume
161
Issue
9
Pages
4652-4660
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W4313347835
Cited by
584
References
52
Citations by year
2026: 3 · 2025: 7 · 2024: 13 · 2023: 11 · 2022: 14 · 2021: 19 · 2020: 19 · 2019: 19 · 2018: 21 · 2017: 20 · 2016: 34 · 2015: 28 · 2014: 27 · 2013: 34 · 2012: 25
FWCI
10.63
Type
journal article
Language
en
Open access
Locations
The Journal of Immunology (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
Keywords
STAT3, interleukin-6, T cell proliferation, apoptosis, Bcl-2, conditional gene targeting, Cre-loxP system, STAT family, cell cycle progression, anti-apoptotic signaling

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