Mca2260

All chemicals and proteins were purchased from Sigma-Aldrich (St. Louis, Missouri, USA) unless otherwise noted. All cell culture reagents were purchased from ThermoFisher Scientific (Waltham, Massachusetts, USA) unless otherwise noted. Hydrolysable crosslinker poly(DL-lactide)-b-poly(ethylene glycol)-b-poly(DL-lactide)-diacrylate triblock (PLA–PEG–PLA) was purchased from PolySciTech Akina (West Lafeyette, Indiana, USA). Capture antibody for ELISA against RTX was purchased from Bio-Rad Laboratories (MCA2260, Hercules, California, USA). HRP-conjugated goat antihuman IgG Fc for ELISA assay was purchased from ThermoFisher Scientific. antihuman CD45, antihuman CD3, antihuman CD56, antihuman CD11b, antihuman CD14, antihuman CD4, and antihuman CD8 were purchased from BioLegend (San Diego, California, USA). RTX (RITUXANTM: Genentech, San Francisco, California, USA) and HER (Herceptin: Genentech) were obtained at the UCLA hospital pharmacy. All NOD.Cg-Prkdc^scid Il2rg^tm1Wjl/SzJ (NSG) and NOD.Cg^−Hc1Prkdc^scid Il2rgtm1Wjl/SzJ (NSG^−Hc1) mice were purchased from The Jackson Laboratory and housed in specific pathogen-free vivarium.