Communications Biology (Jul 2021)

βA3/A1-crystallin regulates apical polarity and EGFR endocytosis in retinal pigmented epithelial cells

  • Peng Shang,
  • Nadezda Stepicheva,
  • Kenneth Teel,
  • Austin McCauley,
  • Christopher Scott Fitting,
  • Stacey Hose,
  • Rhonda Grebe,
  • Meysam Yazdankhah,
  • Sayan Ghosh,
  • Haitao Liu,
  • Anastasia Strizhakova,
  • Joseph Weiss,
  • Imran A. Bhutto,
  • Gerard A. Lutty,
  • Ashwath Jayagopal,
  • Jiang Qian,
  • José-Alain Sahel,
  • J. Samuel Zigler,
  • James T. Handa,
  • Yuri Sergeev,
  • Raju V. S. Rajala,
  • Simon Watkins,
  • Debasish Sinha

DOI
https://doi.org/10.1038/s42003-021-02386-6
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 14

Abstract

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Shang et al. utilize a conditional Cryba1 knockout mouse model to demonstrate a key role for βA3/A1-crystallin in retinal pigmented epithelium. As a result of βA3/A1-crystallin deficiency, the authors report EGFR endocytosis defects and actin network disruption which leads to polarity disruption and degeneration through PITP β/PLC signaling.