TRPM4 channel is involved in regulating epithelial to mesenchymal transition, migration, and invasion of prostate cancer cell lines
| Autor: | Luis Michea, Alfredo Sagredo, Ricardo Armisen, Víctor Pola, Eduardo A. Sagredo, Felipe Simon, Katherine Marcelain, Rodrigo Andaur, Cesar Echeverria, Andrés Stutzin |
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| Rok vydání: | 2018 |
| Předmět: |
Male
0301 basic medicine Epithelial-Mesenchymal Transition Physiology T cell Clinical Biochemistry TRPM Cation Channels Vimentin Models Biological 03 medical and health sciences Prostate cancer 0302 clinical medicine Cell Movement Cell Line Tumor LNCaP Biomarkers Tumor medicine Humans Neoplasm Invasiveness Epithelial–mesenchymal transition Gene knockdown biology Chemistry Prostatic Neoplasms Cancer Cell migration Cell Biology medicine.disease Up-Regulation Gene Expression Regulation Neoplastic 030104 developmental biology medicine.anatomical_structure Gene Knockdown Techniques 030220 oncology & carcinogenesis PC-3 Cells Cancer research biology.protein Snail Family Transcription Factors Neoplasm Grading |
| Zdroj: | Journal of Cellular Physiology. 234:2037-2050 |
| ISSN: | 1097-4652 0021-9541 |
| DOI: | 10.1002/jcp.27371 |
| Popis: | Transient Receptor Potential Melastatin 4 (TRPM4) is a Ca2+ -activated and voltage-dependent monovalent cation channel, which depolarizes the plasma cell membrane, thereby modulating Ca2+ influx across Ca2+ -permeable pathways. TRPM4 is involved in different physiological processes such as T cell activation and the migration of endothelial and certain immune cells. Overexpression of this channel has been reported in various types of tumors including prostate cancer. In this study, a significant overexpression of TRPM4 was found only in samples from cancer with a Gleason score higher than 7, which are more likely to spread. To evaluate whether TRPM4 overexpression was related to the spreading capability of tumors, TRPM4 was knockdown by using shRNAs in PC3 prostate cancer cells and the effect on cellular migration and invasion was analyzed. PC3 cells with reduced levels of TRPM4 (shTRPM4) display a decrease of the migration/invasion capability. A reduction in the expression of Snail1, a canonical epithelial to mesenchymal transition (EMT) transcription factor, was also observed. Consistently, these cells showed a significant change in the expression of key EMT markers such as MMP9, E-cadherin/N-cadherin, and vimentin, indicating a partial reversion of the EMT process. Whereas, the overexpression of TRPM4 in LnCaP cells resulted in increased levels of Snail1, reduction in the expression of E-cadherin and increase in their migration potential. This study suggests a new and indirect mechanism of regulation of migration/invasion process by TRPM4 in prostate cancer cells, by inducing the expression of Snail1 gene and consequently, increasing the EMT. |
| Databáze: | OpenAIRE |
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