By regulating the level of accessible cholesterol on endothelial cells via OSBP/ORP-mediated transport, tetraspanin tunes the balance of Cdc42 and RhoA activities to affect vascular inflammation. Reducing accessible cholesterol by statin treatment or blocking its non-vesicular transport by OSBP/ORP inhibition can limit vascular inflammation.
- Yingjun Ding
- Junxiong Chen
- Xin A. Zhang