ArticleMedical oncology (Northwood, London, England)2025
Tβ4-17 peptide enhances the chemo-sensitivity of ovarian cancer cells to DDP by affecting NF-κB signaling pathway.
Article in Medical oncology (Northwood, London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ovarian cancer is a gynecologic malignancy with high mortality and poor prognosis. Chemoresistance is a key cause of ovarian cancer recurrence and metastasis. It has been found that some bioactive peptides can inhibit the growth and metastasis of cancer cells and promote cell apoptosis, thus exerting anti-cancer effects. Tβ4-17 is a small polypeptide that we selected using ITRAQ technology, and its precursor protein is thymosin β4. This study mainly investigated its effect in combination with cisplatin (DDP) on the proliferation, migration and apoptosis of ovarian cancer resistant cells and related molecular mechanisms. Our results showed that Tβ4-17 peptide combined with DDP significantly inhibited the proliferation and migration of drug resistance cells in ovarian cancer, promoted apoptosis, and increased the chemo-sensitivity of ovarian cancer cells to DDP. In addition, qRT-PCR and Western blot showed that NF-κB was significantly highly expressed in DDP-resistant cells of ovarian cancer. After application of NF-κB inhibitors and activators, Western blot, CCK8, EDU fluorescence proliferation assay, and cell scratch assay showed that Tβ4-17 peptide down-regulated NF-κB p65 protein expression and inhibited cell proliferation and migration. In conclusion, our study demonstrates that Tβ4-17 peptide enhances the sensitivity of ovarian cancer cells to DDP by down-regulating NF-κB expression.
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