Aspartate β-hydroxylase targeting in castration-resistant prostate cancer modulates the NOTCH/HIF1α/GSK3β crosstalk
| Autor: | Roberta Venè, Paola Barboro, Simonetta Astigiano, Delfina Costa, Matteo Capaia, Francesca Tosetti, Roberto Benelli, Nicoletta Ferrari, Alessandro Poggi |
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| Rok vydání: | 2020 |
| Předmět: |
Male
0301 basic medicine Cancer Research Small interfering RNA Notch signaling pathway Muscle Proteins Apoptosis urologic and male genital diseases Mixed Function Oxygenases 03 medical and health sciences 0302 clinical medicine Cyclin D1 Epidermal growth factor Biomarkers Tumor Tumor Cells Cultured Humans Gene silencing RNA Small Interfering Receptor Notch1 Cell Proliferation Glycogen Synthase Kinase 3 beta biology Chemistry Kinase Calcium-Binding Proteins Membrane Proteins General Medicine Hypoxia-Inducible Factor 1 alpha Subunit Prognosis ASPH Gene Expression Regulation Neoplastic Survival Rate Prostatic Neoplasms Castration-Resistant 030104 developmental biology 030220 oncology & carcinogenesis biology.protein Cancer research Signal transduction |
| Zdroj: | Carcinogenesis. 41:1246-1252 |
| ISSN: | 1460-2180 0143-3334 |
| Popis: | Castration-resistant prostate cancer (CRPC) is an incurable stage of the disease. A multivariate principal component analysis on CRPC in vitro models identified aspartyl (asparaginyl) β hydrolase (ASPH) as the most relevant molecule associated with the CRPC phenotype. ASPH is overexpressed in various malignant neoplasms and catalyzes the hydroxylation of aspartyl and asparaginyl residues in the epidermal growth factor (EGF)-like domains of proteins like NOTCH receptors and ligands, enhancing cell motility, invasion and metastatic spread. Bioinformatics analyses of ASPH in prostate cancer (PCa) and CRPC datasets indicate that ASPH gene alterations have prognostic value both in PCa and CRPC patients. In CRPC cells, inhibition of ASPH expression obtained through specific small interfering RNA or culturing cells in hypoxic conditions, reduced cell proliferation, invasion and cyclin D1 expression through modulation of the NOTCH signaling. ASPH and HIF1α crosstalk, within a hydroxylation-regulated signaling pathway, might be transiently driven by the oxidative stress evidenced inside CRPC cells. In addition, increased phosphorylation of GSK3β by ASPH silencing demonstrates that ASPH regulates GSK3β activity inhibiting its interactions with upstream kinases. These findings demonstrate the critical involvement of ASPH in CRPC development and may represent an attractive molecular target for therapy. |
| Databáze: | OpenAIRE |
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