AI Article Synopsis

  • Abnormal levels of claudin-1 (CLDN1) are linked to cancer development and spread, but its specific role in oral squamous cell carcinoma (OSCC) has been unclear.
  • Researchers found that withaferin A can reduce the movement and spread of OSCC cells by lowering CLDN1 levels, both in lab experiments and animal models.
  • CLDN1 typically enhances tumor growth and spread, and its higher expression in patients with OSCC is tied to worse outcomes, suggesting that targeting CLDN1 with withaferin A could be a promising strategy for cancer treatment.

Article Abstract

Abnormal expression of claudin-1 (CLDN1) has important roles in carcinogenesis and metastasis in various cancers. The role of CLDN1 in human oral squamous cell carcinoma (OSCC) remains unknown. Here, we report the functional role of CLDN1 in metastasis of human OSCC, as a potential target regulated by withaferin A. From gene expression profiling with microarray technology, we found that the majority of notable differentially expressed genes were classified into migration/invasion category. Withaferin A impaired the motility of human OSCC cells in vitro and suppressed metastatic nodule formation in an in vivo metastasis model, both associated with reduced CLDN1. CLDN1 overexpression enhanced metastatic nodule formation in vivo, resulting in severe metastatic lesions in lung tissue. Moreover, CLDN1 expression was positively correlated to lymphatic metastasis in OSCC patients. The impaired motility of human OSCC cells upon withaferin A treatment was restored by CLDN1 overexpression. Furthermore, upregulation of let-7a induced by withaferin A was inversely correlated to CLDN1 expression. Overall, these give us an insight into the function of CLDN1 for prognosis and treatment of human OSCC, substantiating further investigation into the use of withaferin A as good anti-metastatic drug candidate.

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http://dx.doi.org/10.1007/s10565-021-09584-2DOI Listing

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