Silencing of carbonic anhydrase I enhances the malignant potential of exosomes secreted by prostatic tumour cells.
Radivojka Bánová VulićMartina ZdurienčíkováSilvia TyčiakováOldřich BenadaMária DubrovčákováJán LakotaĽudovít ŠkultétyPublished in: Journal of cellular and molecular medicine (2019)
We report results showing that the silencing of carbonic anhydrase I (siCA1) in prostatic (PC3) tumour cells has a significant impact on exosome formation. An increased diameter, concentration and diversity of the produced exosomes were noticed as a consequence of this knock-down. The protein composition of the exosomes' cargo was also altered. Liquid chromatography and mass spectrometry analyses identified 42 proteins significantly altered in PC3 siCA1 exosomes compared with controls. The affected proteins are mainly involved in metabolic processes, biogenesis, cell component organization and defense/immunity. Interestingly, almost all of them have been described as 'enhancers' of tumour development through the promotion of cell proliferation, migration and invasion. Thus, our results indicate that the reduced expression of the CA1 protein enhances the malignant potential of PC3 cells.
Keyphrases
- mesenchymal stem cells
- mass spectrometry
- liquid chromatography
- induced apoptosis
- stem cells
- cell proliferation
- cell cycle arrest
- poor prognosis
- binding protein
- protein protein
- cell therapy
- benign prostatic hyperplasia
- oxidative stress
- high resolution
- high resolution mass spectrometry
- signaling pathway
- endoplasmic reticulum stress
- pi k akt
- tandem mass spectrometry
- radical prostatectomy
- high performance liquid chromatography
- single cell
- gas chromatography
- risk assessment
- small molecule
- simultaneous determination
- protein kinase