For example, Yu et al. used liposomes with FAP-α-responsive cleavable amphiphilic peptide (CAP) to control the release of small albumin-paclitaxel complexes (about 7.9 nm diameter) surrounding CAFs, resulting in increased drug penetration in the tumor, from 100 μm to 500–1000 μm [269]. The gene discussed is FAP; the disease is neoplasm.