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Targeting the BMI1-Noxa Axis by Dioscin Induces Apoptosis in Oral Squamous Cell Carcinoma Cells

Overview
Journal J Cancer
Specialty Oncology
Date 2025 Jan 2
PMID 39744574
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Abstract

Dioscin is a natural plant-derived steroidal saponin that exerts antitumor effects in multiple cancers. It is widely involved in multiple apoptotic pathways and exerts its anti-tumor effects. In this study, we discovered that Dioscin treatment increased the expression of Noxa, thereby inducing the apoptosis of OSCC cells. Previous reports indicate that dysfunction of the BMI1-Noxa axis is frequently observed in multiple cancers. Our study revealed that Dioscin upregulates Noxa by impairing the protein expression of BMI1 in OSCC cells. Dioscin promotes the ubiquitination of BMI1 and facilitates its degradation, leading to upregulation of Noxa expression at the mRNA level and activation of apoptosis. Additionally, Dioscin exhibited potent tumor suppression in xenograft tumor models. In conclusion, our research provides new insights and strategies for inhibiting OSCC cells by investigating the ant-tumor mechanism of the natural compound Dioscin.

References
1.
Sahasrabuddhe A, Dimri M, Bommi P, Dimri G . βTrCP regulates BMI1 protein turnover via ubiquitination and degradation. Cell Cycle. 2011; 10(8):1322-30. PMC: 3117138. DOI: 10.4161/cc.10.8.15372. View

2.
Zhang F, Sui L, Xin T . Correlations of BMI-1 expression and telomerase activity in ovarian cancer tissues. Exp Oncol. 2008; 30(1):70-4. View

3.
Dimri G, Martinez J, Jacobs J, Keblusek P, Itahana K, van Lohuizen M . The Bmi-1 oncogene induces telomerase activity and immortalizes human mammary epithelial cells. Cancer Res. 2002; 62(16):4736-45. View

4.
Ou-Yang S, Jiang T, Zhu L, Yi T . Dioscorea nipponica Makino: a systematic review on its ethnobotany, phytochemical and pharmacological profiles. Chem Cent J. 2018; 12(1):57. PMC: 5945570. DOI: 10.1186/s13065-018-0423-4. View

5.
Bugshan A, Farooq I . Oral squamous cell carcinoma: metastasis, potentially associated malignant disorders, etiology and recent advancements in diagnosis. F1000Res. 2020; 9:229. PMC: 7194458. DOI: 10.12688/f1000research.22941.1. View