ALB and neoplasm: Human serum albumin (HSA), the most abundant plasma protein in the body, is an important transporter with good biocompatibility and degradability.5 HSA can be combined with hydrophobic drugs in a reversible way to assist their transport in the human body and can effectively target tumor cells through gp60 and SPARC receptors-mediated endocytosis to enhance the uptake of tumor cells.6 Therefore, HSA has the potential as a tumor-targeted drug delivery carrier.