Compared to the ID8luc-Trp53-/-Ctrl group, Cx3cl1 mRNA expression was still 1.5-fold higher in subcutaneous tumour tissues of the Cx3cl1+ group, albeit not reaching statistical significance after that long time (1.84 vs. 1.26 2^-ΔCt, P = 0.27, Fig. 4H). Here, CX3CL1 is linked to neoplasm.