Tamoxifen extracellular matrix (ECM) recruits fewer macrophages than control ECM in a transwell filter assay. (a) Photomicrographs of transwell filters showing that J774 macrophage cells are less chemotactic towards tamoxifen ECM compared with control ECM. 100× magnification. (b) Quantitation of J774 cell motility demonstrates significantly reduced chemotaxis towards tamoxifen ECM. *p = 0.003.