CAV1 and neoplasm: For example, we observed that the higher dose level (0.1 mg/kg) required for best repression of 22Rv1 tumor growth compared with PC3-LN4 tumor response (0.01 mg/kg) related to the higher levels of caveolin 1 in PC3-LN4 tumors compared with that in 22Rv1 tumors, suggesting more effective uptake of the drug in the PC3-LN4 model.