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Macsek P, Skoda J, Krchniakova M, Neradil J, Veselska R. Iron-Chelation Treatment by Novel Thiosemicarbazone Targets Major Signaling Pathways in Neuroblastoma. Int J Mol Sci 2021; 23:ijms23010376. [PMID: 35008802 PMCID: PMC8745636 DOI: 10.3390/ijms23010376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 01/23/2023] Open
Abstract
Despite constant advances in the field of pediatric oncology, the survival rate of high-risk neuroblastoma patients remains poor. The molecular and genetic features of neuroblastoma, such as MYCN amplification and stemness status, have established themselves not only as potent prognostic and predictive factors but also as intriguing targets for personalized therapy. Novel thiosemicarbazones target both total level and activity of a number of proteins involved in some of the most important signaling pathways in neuroblastoma. In this study, we found that di-2-pyridylketone 4-cyclohexyl-4-methyl-3-thiosemicarbazone (DpC) potently decreases N-MYC in MYCN-amplified and c-MYC in MYCN-nonamplified neuroblastoma cell lines. Furthermore, DpC succeeded in downregulating total EGFR and phosphorylation of its most prominent tyrosine residues through the involvement of NDRG1, a positive prognostic marker in neuroblastoma, which was markedly upregulated after thiosemicarbazone treatment. These findings could provide useful knowledge for the treatment of MYC-driven neuroblastomas that are unresponsive to conventional therapies.
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Affiliation(s)
- Peter Macsek
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 601 77 Brno, Czech Republic; (P.M.); (J.S.); (M.K.); (R.V.)
- International Clinical Research Center, St. Anne’s University Hospital, 656 91 Brno, Czech Republic
| | - Jan Skoda
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 601 77 Brno, Czech Republic; (P.M.); (J.S.); (M.K.); (R.V.)
- International Clinical Research Center, St. Anne’s University Hospital, 656 91 Brno, Czech Republic
| | - Maria Krchniakova
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 601 77 Brno, Czech Republic; (P.M.); (J.S.); (M.K.); (R.V.)
| | - Jakub Neradil
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 601 77 Brno, Czech Republic; (P.M.); (J.S.); (M.K.); (R.V.)
- International Clinical Research Center, St. Anne’s University Hospital, 656 91 Brno, Czech Republic
- Department of Pediatric Oncology, Faculty of Medicine, University Hospital Brno, Masaryk University, 662 63 Brno, Czech Republic
- Correspondence: ; Tel.: +420-549-49-6003
| | - Renata Veselska
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 601 77 Brno, Czech Republic; (P.M.); (J.S.); (M.K.); (R.V.)
- International Clinical Research Center, St. Anne’s University Hospital, 656 91 Brno, Czech Republic
- Department of Pediatric Oncology, Faculty of Medicine, University Hospital Brno, Masaryk University, 662 63 Brno, Czech Republic
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Mahdal M, Neradil J, Mudry P, Paukovcekova S, Staniczkova Zambo I, Urban J, Macsek P, Pazourek L, Tomas T, Veselska R. New Target for Precision Medicine Treatment of Giant-Cell Tumor of Bone: Sunitinib Is Effective in the Treatment of Neoplastic Stromal Cells with Activated PDGFRβ Signaling. Cancers (Basel) 2021; 13:cancers13143543. [PMID: 34298757 PMCID: PMC8305892 DOI: 10.3390/cancers13143543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/30/2021] [Accepted: 07/14/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary The purpose of this study was to analyze differential cell signaling in response to denosumab treatment to identify and subsequently inhibit molecular targets in the neoplastic stromal cell population, which poses a risk for tumor recurrence. Using phosphoprotein arrays, a distinct signaling profile was detected in GCTB tissues treated with denosumab, a specific RANKL antibody, which coincided with the RTK profile in derived cell lines. PDGFRβ was selected as a promising receptor target, and its inhibition by the small-molecule inhibitor sunitinib resulted in potent inhibition of cell proliferation in vitro. The addition of sunitinib to denosumab resulted in the disappearance of both multinuclear giant cells and neoplastic stromal cells, as reported here. Thus, sunitinib could become an effective addition to denosumab in the treatment of GCTB with activated PDGFRβ. Abstract Giant-cell tumor of bone (GCTB) is an intermediate type of primary bone tumor characterized by locally aggressive growth with metastatic potential. The aim of this study was to identify new druggable targets among the cell signaling molecules involved in GCTB tumorigenesis. Profiles of activated signaling proteins in fresh-frozen tumor samples and tumor-derived cell lines were determined using phosphoprotein arrays. Analysis of the obtained data revealed epidermal growth factor receptor (EGFR) and platelet-derived growth factor receptor beta (PDGFRβ) as potential targets, but only the PDGFR inhibitor sunitinib caused a considerable decrease in stromal cell viability in vitro. Furthermore, in the case of a 17-year-old patient suffering from GCTB, we showed that the addition of sunitinib to the standard treatment of GCTB with the monoclonal antibody denosumab resulted in the complete depletion of multinucleated giant cells and mononuclear stromal cells in the tumor tissue. To summarize, the obtained data showed that a specific receptor tyrosine kinase (RTK) signaling pattern is activated in GCTB cells and plays an important role in the regulation of cell proliferation. Thus, activated RTKs and their downstream signaling pathways represent useful targets for precision treatment with low-molecular-weight inhibitors or with other types of modern biological therapy.
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Affiliation(s)
- Michal Mahdal
- First Department of Orthopedic Surgery, St. Anne’s University Hospital and Faculty of Medicine, Masaryk University, 65691 Brno, Czech Republic; (M.M.); (L.P.); (T.T.)
| | - Jakub Neradil
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic; (J.N.); (S.P.); (P.M.)
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic; (P.M.); (I.S.Z.)
- Department of Pediatric Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, 66263 Brno, Czech Republic
| | - Peter Mudry
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic; (P.M.); (I.S.Z.)
- Department of Pediatric Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, 66263 Brno, Czech Republic
| | - Silvia Paukovcekova
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic; (J.N.); (S.P.); (P.M.)
| | - Iva Staniczkova Zambo
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic; (P.M.); (I.S.Z.)
- First Pathology Department, St. Anne’s University Hospital and Faculty of Medicine, Masaryk University, 65691 Brno, Czech Republic
| | - Jiri Urban
- Department of Chemistry, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic;
| | - Peter Macsek
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic; (J.N.); (S.P.); (P.M.)
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic; (P.M.); (I.S.Z.)
| | - Lukas Pazourek
- First Department of Orthopedic Surgery, St. Anne’s University Hospital and Faculty of Medicine, Masaryk University, 65691 Brno, Czech Republic; (M.M.); (L.P.); (T.T.)
| | - Tomas Tomas
- First Department of Orthopedic Surgery, St. Anne’s University Hospital and Faculty of Medicine, Masaryk University, 65691 Brno, Czech Republic; (M.M.); (L.P.); (T.T.)
| | - Renata Veselska
- Laboratory of Tumor Biology, Department of Experimental Biology, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic; (J.N.); (S.P.); (P.M.)
- International Clinical Research Center, St. Anne’s University Hospital, 65691 Brno, Czech Republic; (P.M.); (I.S.Z.)
- Department of Pediatric Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, 66263 Brno, Czech Republic
- Correspondence: ; Tel.: +420-549-49-7905
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