A histopathologic study showed that the expression of CCL2 and CCL19 were inversely associated with the expression of atypical chemokine receptors (ACRs), including CCX-CKR, DARC, and D6, which have been reported to be involved in cancer invasion and metastasis in patients with cervical squamous cell carcinoma [32]. Here, CCL2 is linked to cervical squamous cell carcinoma.