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.
- Peng Shang
- Nadezda Stepicheva
- Debasish Sinha