CXCL1 and cancer: High GRO-α expression in the cytoplasm of cancer cells was detected in 41.88% (67/160, Table 1) of cancerous samples, compared with 8.8% (6/68, Table 1) of matched control samples, and high expression of GRO-α in the stroma was detected in 40.62% (65/160, Table 1) of cancerous samples compared with 25.00% (17/68, Table 1) of normal control samples.