CXCL1 and pancreatic neoplasm: Kaplan–Meier survival curves showed that pancreatic cancer patients with positive GRO-α expression in the cytoplasm of cancer cells exhibited significantly poorer survival time than those with negative GRO-α expression (Fig. 4a), and that high levels of GRO-α in the stroma were also associated with an unfavorable survival time (Fig. 4b).