Clinical translation of nanoparticle drug (nanodrug) delivery systems for cancer therapy is primarily hindered by short half-life of nanodrugs in blood circulation and their poor ability of tumor targeting and penetration in vivo. Circulatory cells have garnered much attention in cancer therapy as drug delivery vehicles due to their biocompatibility, high mobility, biodegradability, tissue targeting capability, high drug loading capacity, ability to cross biological barriers and inherent ability to remain in blood circulation long enough to accumulate within the tumors. Here, we review the progress and potential of circulatory cells as nanodrug delivery vehicles, especially for cancer therapy.
Keywords: Cancer therapy; Circulatory cells; Drug delivery system; Nanoparticles.
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