Fig. 1: Floating speed in partial gravity.
From: Lunar and Martian gravity alter immune cell interactions with endothelia in parabolic flight
THP-1 cells were injected in a flow chamber coated with a HUVEC cell layer and floating behavior was recorded. Analyzed video sequences derived from multiple parabolas. a Flow chart of the image processing and cell tracking. b Violine plots representing floating speed (µm/s) of unstimulated cells (left, contoured green) in lunar gravity (0.16 g, n = 258), Martian gravity (0.38 g, n = 111) and the 1 g control (n = 1174) (left side) and TNF-treated cells (5 ng/ml) (right, contoured blue; 0.16 g, n = 8; 0.38 g, n = 111; 1 g, n = 83). Thick dash lines represent mean values and thin dash lines represent quartiles. c Schematic of the CFD modeling. d The representative image of the cell flowing in the chamber in CFD modeling. e Cell height in the boundary zone. f Velocity in x-direction of cell in the boundary zone. *P < 0.05, **P < 0.01, ***P < 0.001.
