Life-monitoring measurements of cell proliferation by unseparated JPCs using the x-CELLigence system (ACEA Biosciences).

JPCs of passage 4 derived from two different donors were seeded into special E-plates in DMEM/F12/10%FCS culture medium. Two days later (44 hours - each tick of the scale corresponds to 11 hours), a gradual FCS reduction was performed in one-half of the test runs (green and dark green), whereas the other half of the wells was further cultivated in DMEM/F12/10%FCS (red and coral). Nine days (297 hours) after the initiation of FCS reduction, MC-XF culture medium was added to the cells. The proliferation curve progression of DMEM-cultured JPCs (from two representative patients) is highlighted in red and coral and that of MC-XF-cultivated cells is highlighted in dark green and green. The right panel of the figure shows the cell morphology of DMEM- and MC-XF-cultured JPCs. Note the reduced cell size under MC-XF culture conditions (on uncoated dishes) leading to the significant decrease of cell impedance immediately after the addition of the MC-XF culture medium.