Figure 6From: Multidrug resistance characterization in multicellular tumour spheroids from two human lung cancer cell linesImmunocytochemistry of INER-37 cells. A) Monolayer cells or B) multicellular tumour spheroids of INER-37 were labelled with anti-P-gp (C494 antibody, DAKO) and immunostained with anti-rabbit IgG linked to biotin-HRP, followed by DBA to develop colour. Photomicrographs were taken with a Nikon microscope at 620X of total magnification.Back to article page