Additional file 5: Figure S4. of Patient-derived heavy chain antibody targets cell surface HSP90 on breast tumors

HCAb2-localized xenograft tumor cells express protein disulfide isomerase. A-D. 24 h time point tumor section was incubated with anti-PDI and Alexa Fluor® 488 anti-mouse IgG antibodies. Uniform PDI staining was observed in all cells (panel C) throughout the tumor section. Scale bar represents 10 μm. (TIFF 1344 kb)