Morphometric analysis of microglia on micropatterned structures. Morphometric analysis of primary microglia cultured on pillar microstructures (A) and line-grating geometries (B) is performed using a customized Matlab code (C). Values are expressed as mean ± SD, with n = 14 cells on pillars or line-grating structures. A significative difference is obtained for all parameters by Mann–Whitney test (p < 0.0003). “M” indicates major axis and “m” minor axis of cell’s fitted ellipse (panels A, B), “A” cell area, “P” cell perimeter, “AR” aspect ratio, “CR” circularity ratio.