Nature Communications (Oct 2017)

PTP4A1 promotes TGFβ signaling and fibrosis in systemic sclerosis

  • Cristiano Sacchetti,
  • Yunpeng Bai,
  • Stephanie M. Stanford,
  • Paola Di Benedetto,
  • Paola Cipriani,
  • Eugenio Santelli,
  • Sonsoles Piera-Velazquez,
  • Vladimir Chernitskiy,
  • William B. Kiosses,
  • Arnold Ceponis,
  • Klaus H. Kaestner,
  • Francesco Boin,
  • Sergio A. Jimenez,
  • Roberto Giacomelli,
  • Zhong-Yin Zhang,
  • Nunzio Bottini

DOI
https://doi.org/10.1038/s41467-017-01168-1
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 14

Abstract

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Although protein tyrosine kinases are being explored as antifibrotic agents for the treatment of systemic sclerosis, little is known about the function of counteractive protein tyrosine phosphatases in this context. Here, the authors show that PTP4A1 is highly expressed by fibroblasts from patients with systemic sclerosis and promotes TGFβ activity via SRC–ERK–SMAD3 signaling.