Dipalmitoylphosphatidylcholine

Fetal bovine serum, RPMI1640 medium, and trypsin were purchased from HyClone (Logan Utah, USA). Dipalmitoylphosphatidic acid, dipalmityl phosphatidylglycerol, and dipalmitoylphosphatidyl ethanolamine were purchased from CordenPharma (Corden Pharma, Liestal, Switzerland). Dipalmitoylphosphatidylcholine was purchased from Avanti Polar Lipids, Inc. (Alabaster, AL, USA). The crosslinking product between 1,2-distearoyl-phosphatidylethanolamine and polyethylene glycol conjugate-2000 was purchased from NANOCS (Boston, MA, USA). 1,1ʹ-dioctadecyl-3,3,3ʹ,3ʹ-tetramethylindocarbocyanine perchlorate (DiI), 4′,6-diamidino-2-phenylindole (DAPI), CCK-8 reagents and a TUNEL kit were purchased from Beyotime Biotechnology (Shanghai, China). Paclitaxel (PTX), carbodiimide (EDC), and N-hydroxysuccinimide (NHS) were purchased from Solarbio (Beijing, China). AMD070 was purchased from Absin Biotechnology (Shanghai, China). Rabbit anti-human CXCR4 monoclonal antibody, rat anti-mouse CD31 monoclonal antibody, FITC-labeled rabbit anti-rat secondary antibody, and Alexa Fluor 488-labeled goat anti-rabbit secondary antibody were purchased from Abcam (Cambs, UK). An Annexin V Apoptosis Detection Kit FITC kit was purchased from Thermo Fisher Scientific (Waltham, MA, USA). BALB/c-nu female nude mice were purchased from Huafukang Bioscience Co., Inc. (Beijing, China).