Co‐culture is based on the combined culture of 1:1 mix of PANC‐1 and P‐CAFs in transwell format (BD Biosciences 0.4 μm pore size). Conditioned medium (CM) was prepared from CAFs or tumor cells grown in 35 mm culture plates in serum‐free media (1 ml) for 48 h. CM were collected, centrifuged (450 g, 4 min), and incubated with cancer cells for the indicated time points.
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