Fig. 6From: CXCL1 promotes colon cancer progression through activation of NF-κB/P300 signaling pathwayPositive correlation between CXCL1 and the number of tumor vessels. a, c Immunofluorescence assay revealed that CXCL1 overexpression significantly elevated CD31 expression in the colon cancer models, whereas CXCL1 knockout in MC38 resulted in an inhibition of CD31 expression (× 200). b MC38.CXCL1+/+ tumors surrounded by abundant blood vessels. **P < 0.01Back to article page