CAV1 and breast cancer: The nanodrugs were composed of three small molecules, among which IR783 is a commercially available near‐infrared (NIR) dye with a heptamethine cyanine structure and serves as the stabilizer to form a nanoformulation.[16] After intravenous injection, IR783‐stabilized nanodrugs could accumulate in tumor tissues based on passive targeting and be internalized into breast cancer cells through caveolin‐1 (CAV‐1)‐mediated endocytosis.