دورية أكاديمية
DNMT3A/miR-129-2-5p/Rac1 Is an Effector Pathway for SNHG1 to Drive Stem-Cell-like and Invasive Behaviors of Advanced Bladder Cancer Cells
| العنوان: | DNMT3A/miR-129-2-5p/Rac1 Is an Effector Pathway for SNHG1 to Drive Stem-Cell-like and Invasive Behaviors of Advanced Bladder Cancer Cells |
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| المؤلفون: | Jiheng Xu, Rui Yang, Jingxia Li, Lidong Wang, Mitchell Cohen, Diane M. Simeone, Max Costa, Xue-Ru Wu |
| المصدر: | Cancers, Vol 14, Iss 17, p 4159 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens |
| مصطلحات موضوعية: | urothelial carcinoma, muscle-invasive, stemness, SNHG1, Rac1, DNMT3A, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282 |
| الوصف: | The stem-cell-like behavior of cancer cells plays a central role in tumor heterogeneity and invasion and correlates closely with drug resistance and unfavorable clinical outcomes. However, the molecular underpinnings of cancer cell stemness remain incompletely defined. Here, we show that SNHG1, a long non-coding RNA that is over-expressed in ~95% of human muscle-invasive bladder cancers (MIBCs), induces stem-cell-like sphere formation and the invasion of cultured bladder cancer cells by upregulating Rho GTPase, Rac1. We further show that SNHG1 binds to DNA methylation transferase 3A protein (DNMT3A), and tethers DNMT3A to the promoter of miR-129-2, thus hyper-methylating and repressing miR-129-2-5p transcription. The reduced binding of miR-129-2 to the 3′-UTR of Rac1 mRNA leads to the stabilization of Rac1 mRNA and increased levels of Rac1 protein, which then stimulates MIBC cell sphere formation and invasion. Analysis of the Human Protein Atlas shows that a high expression of Rac1 is strongly associated with poor survival in patients with MIBC. Our data strongly suggest that the SNHG1/DNMT3A/miR-129-2-5p/Rac1 effector pathway drives stem-cell-like and invasive behaviors in MIBC, a deadly form of bladder cancer. Targeting this pathway, alone or in combination with platinum-based therapy, may reduce chemoresistance and improve longer-term outcomes in MIBC patients. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2072-6694 96005920 |
| Relation: | https://www.mdpi.com/2072-6694/14/17/4159; https://doaj.org/toc/2072-6694 |
| DOI: | 10.3390/cancers14174159 |
| URL الوصول: | https://doaj.org/article/4ac04f6fbf65402fac16aa9600592076 |
| رقم الأكسشن: | edsdoj.4ac04f6fbf65402fac16aa9600592076 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20726694 96005920 |
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| DOI: | 10.3390/cancers14174159 |