1
|
Codenotti S, Zizioli D, Mignani L, Rezzola S, Tabellini G, Parolini S, Giacomini A, Asperti M, Poli M, Mandracchia D, Vezzoli M, Bernardi S, Russo D, Mitola S, Monti E, Triggiani L, Tomasini D, Gastaldello S, Cassandri M, Rota R, Marampon F, Fanzani A. Hyperactive Akt1 Signaling Increases Tumor Progression and DNA Repair in Embryonal Rhabdomyosarcoma RD Line and Confers Susceptibility to Glycolysis and Mevalonate Pathway Inhibitors. Cells 2022; 11:cells11182859. [PMID: 36139434 PMCID: PMC9497225 DOI: 10.3390/cells11182859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/18/2022] Open
Abstract
In pediatric rhabdomyosarcoma (RMS), elevated Akt signaling is associated with increased malignancy. Here, we report that expression of a constitutively active, myristoylated form of Akt1 (myrAkt1) in human RMS RD cells led to hyperactivation of the mammalian target of rapamycin (mTOR)/70-kDa ribosomal protein S6 kinase (p70S6K) pathway, resulting in the loss of both MyoD and myogenic capacity, and an increase of Ki67 expression due to high cell mitosis. MyrAkt1 signaling increased migratory and invasive cell traits, as detected by wound healing, zymography, and xenograft zebrafish assays, and promoted repair of DNA damage after radiotherapy and doxorubicin treatments, as revealed by nuclear detection of phosphorylated H2A histone family member X (γH2AX) through activation of DNA-dependent protein kinase (DNA-PK). Treatment with synthetic inhibitors of phosphatidylinositol-3-kinase (PI3K) and Akt was sufficient to completely revert the aggressive cell phenotype, while the mTOR inhibitor rapamycin failed to block cell dissemination. Furthermore, we found that pronounced Akt1 signaling increased the susceptibility to cell apoptosis after treatments with 2-deoxy-D-glucose (2-DG) and lovastatin, enzymatic inhibitors of hexokinase, and 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGCR), especially in combination with radiotherapy and doxorubicin. In conclusion, these data suggest that restriction of glucose metabolism and the mevalonate pathway, in combination with standard therapy, may increase therapy success in RMS tumors characterized by a dysregulated Akt signaling.
Collapse
Affiliation(s)
- Silvia Codenotti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Daniela Zizioli
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Luca Mignani
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Sara Rezzola
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Giovanna Tabellini
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Silvia Parolini
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Arianna Giacomini
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Michela Asperti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Maura Poli
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Delia Mandracchia
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Marika Vezzoli
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Simona Bernardi
- Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia, University of Brescia, 25123 Brescia, Italy
| | - Domenico Russo
- Department of Clinical and Experimental Sciences, ASST Spedali Civili di Brescia, University of Brescia, 25123 Brescia, Italy
| | - Stefania Mitola
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Eugenio Monti
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Luca Triggiani
- Radiation Oncology Department, ASST Spedali Civili di Brescia, University of Brescia, 25123 Brescia, Italy
| | - Davide Tomasini
- Radiation Oncology Department, ASST Spedali Civili di Brescia, University of Brescia, 25123 Brescia, Italy
| | - Stefano Gastaldello
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden
- Precision Medicine Research Center, School of Pharmacy, Binzhou Medical University, Laishan District, Guanhai Road 346, Yantai 264003, China
| | - Matteo Cassandri
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
- Department of Radiotherapy, Policlinico Umberto I, “Sapienza” University of Rome, 00161 Rome, Italy
| | - Rossella Rota
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
| | - Francesco Marampon
- Department of Radiotherapy, Policlinico Umberto I, “Sapienza” University of Rome, 00161 Rome, Italy
| | - Alessandro Fanzani
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
- Correspondence: ; Tel.: +39-030-3717567
| |
Collapse
|