What happens to a cell expressing high levels of caveolin?

Caveolin is a structural protein essential for the formation of caveolae, small invaginations of the plasma membrane involved in endocytosis and signal regulation. High levels of caveolin enhance receptor-mediated internalization of signaling molecules and membrane receptors through caveolae-dependent endocytosis. It does not directly affect protein degradation, synthesis, or autophagy receptor expression