CXCR4 and cervical carcinoma: The p65 subunit of NF-κB is O-GlcNAcylated at Ser-550 and 551 upon NF-κB activation in PDAC (55), and promotes lung metastasis by activating C-X-C chemokine receptor type 4 (CXCR4) expressions in cervical cancer cells (56).