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June-2014 Volume 9 Issue 6

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Article

Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis

  • Authors:
    • Benjamin Wilde
    • André Hoerning
    • Andreas Kribben
    • Oliver Witzke
    • Sebastian Dolff
  • View Affiliations / Copyright

    Affiliations: Department of Nephrology, University Hospital Essen, University of Duisburg‑Essen, Essen, North Rhine‑Westphalia 45122, Germany, Department of Pediatrics II, Pediatric Nephrology, Gastroenterology, Endocrinology and Transplant Medicine, Children's Hospital Essen, University of Duisburg‑Essen, Essen, North Rhine‑Westphalia 45122, Germany
  • Pages: 2316-2320
    |
    Published online on: March 20, 2014
       https://doi.org/10.3892/mmr.2014.2062
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Abstract

Anti‑neutrophil cytoplasmic antibody‑associated vasculitis (AAV) is an autoimmune small vessel vasculitis. Despite the role of autoantibodies, T cells play an essential role in pathogenesis and are abnormal in AAV. Signal transducers and activators of transcription (STAT) affect immunoregulation and T‑cell homeostasis. Therefore, the present study examined the ex vivo basal expression of the activated forms of STAT5 [phosphorylated (p)STAT5] and STAT3 (pSTAT3) in AAV and analyzed the function of two signaling pathways linked to these transcription factors. In total, 31 patients with AAV and 16 age‑matched healthy controls (HCs) were enrolled. CD3+ T cells from peripheral blood were analyzed directly ex vivo by a fluorescence‑activated cell sorter for basal expression of pSTAT5 and pSTAT3. Expression was also analyzed in T cells following short‑term stimulation with interleukin (IL)‑2 or ‑10. The basal expression of pSTAT5/3 in T cells was similar to AAV patients and HC. Following stimulation with IL-2 or -10, expression of pSTAT5/3 increased in AAV subjects compared with HC. Basal expression of pSTAT3 correlated with the relapse rate in AAV. In conclusion, STAT3 and STAT5 mediated signaling pathways were functionally intact in AAV patients and exhibited hyper‑responsiveness to IL‑2 and ‑10 stimuli. Thus, T‑cell abnormalities in AAV are not promoted by an altered basal expression of pSTAT5/3 or dysfunction of the IL‑2/‑10 signaling pathways, in which STAT5/3 are essential.
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Copy and paste a formatted citation
Spandidos Publications style
Wilde B, Hoerning A, Kribben A, Witzke O and Dolff S: Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis. Mol Med Rep 9: 2316-2320, 2014.
APA
Wilde, B., Hoerning, A., Kribben, A., Witzke, O., & Dolff, S. (2014). Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis. Molecular Medicine Reports, 9, 2316-2320. https://doi.org/10.3892/mmr.2014.2062
MLA
Wilde, B., Hoerning, A., Kribben, A., Witzke, O., Dolff, S."Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis". Molecular Medicine Reports 9.6 (2014): 2316-2320.
Chicago
Wilde, B., Hoerning, A., Kribben, A., Witzke, O., Dolff, S."Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis". Molecular Medicine Reports 9, no. 6 (2014): 2316-2320. https://doi.org/10.3892/mmr.2014.2062
Copy and paste a formatted citation
x
Spandidos Publications style
Wilde B, Hoerning A, Kribben A, Witzke O and Dolff S: Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis. Mol Med Rep 9: 2316-2320, 2014.
APA
Wilde, B., Hoerning, A., Kribben, A., Witzke, O., & Dolff, S. (2014). Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis. Molecular Medicine Reports, 9, 2316-2320. https://doi.org/10.3892/mmr.2014.2062
MLA
Wilde, B., Hoerning, A., Kribben, A., Witzke, O., Dolff, S."Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis". Molecular Medicine Reports 9.6 (2014): 2316-2320.
Chicago
Wilde, B., Hoerning, A., Kribben, A., Witzke, O., Dolff, S."Signal tranducers and activators of transcription: Expression and function in anti‑neutrophil cytoplasmic antibody‑associated vasculitis". Molecular Medicine Reports 9, no. 6 (2014): 2316-2320. https://doi.org/10.3892/mmr.2014.2062
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