Analysis of long-term TNF-alpha induced EGFR tyrosine kinase inhibitor resistance in chordoma.

Chordoma is a special malignant tumor that lacks effective therapeutic targets, which can lead to incomplete treatment and metastasis. Inflammation plays an important role in chordoma progression and malignant phenotype. Inflammatory factors such as NF-kappaB and STAT3 are continuously activated in many tumors and contribute to the malignant phenotype of tumors and are potential therapeutic targets. This study suggest TNF-alpha and NF-kappaB signaling pathways were consistently activated in chordomas. Long-term TNF-alpha treatment induces chordoma resistance to EGFR family inhibitors. The underlying mechanism is realized by the key molecules HS3ST3A and HS3ST3B1. These two enzymes are potential targets for chordoma treatment, as well as for combination drugs treatment. It should be emphasized that the above analysis lacks experimental verification.