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Baratova M, Skvarkova L, Bartosova M, Jelenska L, Zatovicova M, Puzderova B, Kajanova I, Csaderova L, Pastorekova S, Svastova E. Functional consequences of altered glycosylation of tumor-associated hypoxia biomarker carbonic anhydrase IX. Neoplasma 2023; 70:416-429. [PMID: 37498074 DOI: 10.4149/neo_2023_230505n246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/20/2023] [Indexed: 07/28/2023]
Abstract
Glycosylation is a posttranslational modification of proteins affecting numerous cellular functions. A growing amount of evidence confirms that aberrant glycosylation is involved in pathophysiological processes, including tumor development and progression. Carbonic anhydrase IX (CAIX) is a transmembrane protein whose expression is strongly induced in hypoxic tumors, which makes it an attractive target for anti-tumor therapy. CAIX facilitates the maintenance of intracellular pH homeostasis through its catalytic activity, which is linked with extracellular pH acidification promoting a more aggressive phenotype of tumor cells. The involvement of CAIX in destabilizing cell-cell contacts and the focal adhesion process also contributes to tumor progression. Previous research shows that CAIX is modified with N-glycans, O-glycans, and glycosaminoglycans (GAG). Still, the impact of glycosylation on CAIX functions has yet to be fully elucidated. By preparing stably transfected cells expressing mutated forms of CAIX, unable to bind glycans at their defined sites, we have attempted to clarify the role of glycan structures in CAIX functions. All three types of prepared mutants exhibited decreased adhesion to collagen. By surface plasmon resonance, we proved direct binding between CAIX and collagen. Cells lacking glycosaminoglycan modification of CAIX also showed reduced migration and invasion, indicating CAIX glycosaminoglycans' involvement in these processes. Analysis of signaling pathways affected by the loss of GAG component from CAIX molecule revealed decreased phosphorylation of c-Jun, of p38α kinase, focal adhesion kinase, and reduced level of heat shock protein 60 in cells cultured in hypoxia. Cells expressing CAIX without GAG exhibited increased metabolon formation and increased extracellular pH acidification. We also observed reduced CAIX GAG glycans in the inflammatory environment in hypoxia, pathophysiological conditions reflecting in vivo tumor microenvironment. Understanding the glycan involvement in the characteristics and functions of possible targets of cancer treatment, such as cell surface localized CAIX, could improve the therapy, as many drugs target glycan parts of a protein.
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Affiliation(s)
- Magdalena Baratova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Lucia Skvarkova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Maria Bartosova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Lenka Jelenska
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Miriam Zatovicova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Barbora Puzderova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Ivana Kajanova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Lucia Csaderova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Silvia Pastorekova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Eliska Svastova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, Slovak Academy of Sciences, Bratislava, Slovakia
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Zatovicova M, Kajanova I, Takacova M, Jelenska L, Sedlakova O, Labudova M, Pastorekova S. ADAM10 mediates shedding of carbonic anhydrase IX ectodomain non‑redundantly to ADAM17. Oncol Rep 2022; 49:27. [PMID: 36524367 PMCID: PMC9813547 DOI: 10.3892/or.2022.8464] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/08/2022] [Accepted: 10/31/2022] [Indexed: 12/23/2022] Open
Abstract
Carbonic anhydrase IX (CA IX) is a transmembrane enzyme participating in adaptive responses of tumors to hypoxia and acidosis. CA IX regulates pH, facilitates metabolic reprogramming, and supports migration, invasion and metastasis of cancer cells. Extracellular domain (ECD) of CA IX can be shed to medium and body fluids by a disintegrin and metalloproteinase (ADAM) 17. Here we show for the first time that CA IX ECD shedding can be also executed by ADAM10, a close relative of ADAM17, via an overlapping cleavage site in the stalk region of CA IX connecting its exofacial catalytic site with the transmembrane region. This finding is supported by biochemical evidence using recombinant human ADAM10 protein, colocalization of ADAM10 with CA IX, ectopic expression of a dominant‑negative mutant of ADAM10 and RNA interference‑mediated suppression of ADAM10. Induction of the CA IX ECD cleavage with ADAM17 and/or ADAM10 activators revealed their additive effect. Similarly, additive effect was observed with an ADAM17‑inhibiting antibody and an ADAM10‑preferential inhibitor GI254023X. These data indicated that ADAM10 is a CA IX sheddase acting on CA IX non‑redundantly to ADAM17.
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Affiliation(s)
- Miriam Zatovicova
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia
| | - Ivana Kajanova
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia
| | - Martina Takacova
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia
| | - Lenka Jelenska
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia
| | - Olga Sedlakova
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia
| | - Martina Labudova
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia
| | - Silvia Pastorekova
- Biomedical Research Center of the Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, 84505 Bratislava, Slovakia,Correspondence to: Professor Silvia Pastorekova, Biomedical Research Center of The Slovak Academy of Sciences, Institute of Virology, Department of Tumor Biology, Dubravska cesta 9, 84505 Bratislava, Slovakia, E-mail:
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Kajanova I, Grossmannova K, Jelenska L, Lukacikova L, Radikova Z, Knutova N, Nahlikova J, Belisova M, Pastorekova S, Kopacek J. Seroprevalence of SARS-CoV-2 antibodies in the county town
of Slovakia – a pilot study from the Trencin city. Acta Virol 2022; 66:228-237. [DOI: 10.4149/av_2022_301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kajanova I, Lukacikova L, Jelenska L, Grossmannova K, Radikova Z, Vlcek M, Klempa B, Kollar R, Bodova K, Kopacek J, Pastorekova S. Seroprevalence of SARS-CoV-2 IgG antibodies in the staff of the Slovak Academy of Sciences in response to COVID-19 and/or vaccination: situation in August 2021. Acta Virol 2021; 65:420-432. [PMID: 34796716 DOI: 10.4149/av_2021_407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cross-sectional seroprevalence study of SARS-CoV-2 IgG antibodies was accomplished in the Slovak Academy of Sciences to inform authorities of research institutions about the situation at their workplaces, to assess the risk of next exposure to SARS-CoV-2, and to guide decisions on institutional measures sustaining essential research in evolving epidemic situation. Study participants provided informed consent, anamnestic information, and self-collected dry blood spot samples that were analyzed by ELISA for SARS-CoV-2 S protein-specific IgG antibodies. Relative antibody levels detected in 1928 subjects showed seroprevalence of 84.13% and led to the following main findings consistent with the current knowledge: (1) mRNA-based vaccines induce better humoral response compared to adenovirus vaccines, (2) antibody levels reflect severity of COVID-19 symptoms, (3) post-COVID vaccination results in marked elevation of IgG levels particularly in asymptomatic and mild cases, (4) antibody levels decrease with increasing time elapsed from vaccination or COVID-19. In addition, data sorting to distinct research institutes and their clustering to three principal scientific sections of the Slovak Academy of Sciences revealed marked differences in seroprevalence, and allowed to identify workplaces with relatively high seropositivity and response rate that can potentially provide a safer working environment than those, where seroprevalence was low or unknown due to low participation. Thus, findings of this study can have direct implications on management decisions during the next pandemic development, with the necessity to keep in mind the phenomenon of time-dependent immunity waning and current spread of more contagious Delta variant of SARS-CoV-2. Keywords: SARS-CoV-2 coronavirus; COVID-19; spike protein; seroprevalence; antibodies; vaccination.
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Antal I, Koneracka M, Kubovcikova M, Zavisova V, Jurikova A, Khmara I, Omastova M, Micusik M, Barathova M, Jelenska L, Kajanova I, Zatovicova M, Pastorekova S. Targeting of carbonic anhydrase IX-positive cancer cells by glycine-coated superparamagnetic nanoparticles. Colloids Surf B Biointerfaces 2021; 205:111893. [PMID: 34116397 DOI: 10.1016/j.colsurfb.2021.111893] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/17/2021] [Accepted: 05/30/2021] [Indexed: 11/16/2022]
Abstract
Antibody-modified magnetic nanoparticles were prepared to study their cellular uptake in 3D multicellular spheroidal cell cultures. For this purpose, carbonic anhydrase IX specific monoclonal antibody VII/20 was selected to conjugate on the surface of positively charged glycine coated magnetic nanoparticles in a form of a stable magnetic fluid. In this work, glycine-functionalized magnetic nanoparticles were characterized by different methods. X-ray photoelectron analysis confirmed the binding of glycine to the magnetic nanoparticles, and quantification of the glycine coating on the surface of the magnetic nanoparticles was conducted by thermogravimetric analysis. The optimal weight ratio of glycine to magnetic nanoparticles was determined to be 5 showing good colloid stability due to the high surface charge density of protonated glycine coating shown by the great zeta potential (⁓40 mV). The antibody conjugation to the functionalized magnetic nanoparticles was performed at an antibody to magnetic nanoparticles weight ratio equal to 0.5. Applications of antibody-modified magnetic nanoparticles in cancer therapy rely on their ability to specifically target cancer tissues and enter the tumour intracellular space. Here, we show that antibody coupled nanoparticle internalization was triggered by selective binding to tumour cells expressing hypoxic marker carbonic anhydrase IX. Moreover, our results confirmed specific penetration of conjugated nanoparticles into the tumour cell spheroids.
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Affiliation(s)
- Iryna Antal
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Martina Koneracka
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia.
| | - Martina Kubovcikova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Vlasta Zavisova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Alena Jurikova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Iryna Khmara
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, Kosice, Slovakia
| | - Maria Omastova
- Polymer Institute Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava 45, Slovakia
| | - Matej Micusik
- Polymer Institute Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava 45, Slovakia
| | - Monika Barathova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Lenka Jelenska
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Ivana Kajanova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Miriam Zatovicova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
| | - Silvia Pastorekova
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovakia
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Simko V, Belvoncikova P, Csaderova L, Labudova M, Grossmannova K, Zatovicova M, Kajanova I, Skultety L, Barathova M, Pastorek J. PIMT Binding to C-Terminal Ala459 of CAIX Is Involved in Inside-Out Signaling Necessary for Its Catalytic Activity. Int J Mol Sci 2020; 21:ijms21228545. [PMID: 33198416 PMCID: PMC7696048 DOI: 10.3390/ijms21228545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/20/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 01/10/2023] Open
Abstract
Human carbonic anhydrase IX (CAIX), a unique member of the α carbonic anhydrase family, is a transmembrane glycoprotein with high enzymatic activity by which CAIX contributes to tumorigenesis through pH regulation. Due to its aberrant expression, CAIX is considered to be a marker of tumor hypoxia and a poor prognostic factor of several human cancers. Hypoxia-activated catalytic function of CAIX is dependent on posttranslational modification of its short intracellular domain. In this work, we have identified that C-terminal Ala459 residue, which is common across CAIX of various species as well as additional transmembrane isoforms, plays an important role in CAIX activation and in pH regulation. Moreover, structure prediction I-TASSER analysis revealed involvement of Ala459 in potential ligand binding. Using tandem mass spectrometry, Protein-L-isoaspartyl methyltransferase (PIMT) was identified as a novel interacting partner, further confirmed by an in vitro pulldown assay and an in situ proximity ligation assay. Indeed, suppression of PIMT led to increased alkalinization of culture media of C33a cells constitutively expressing CAIX in hypoxia. We suggest that binding of PIMT represents a novel intracellular signal required for enzymatic activity of CAIX with a potential unidentified downstream function.
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Affiliation(s)
- Veronika Simko
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Petra Belvoncikova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Lucia Csaderova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Martina Labudova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Katarina Grossmannova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Miriam Zatovicova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Ivana Kajanova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
| | - Ludovit Skultety
- Department of Rickettsiology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia;
| | - Monika Barathova
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
- Correspondence: ; Tel.: +421-2-5930-2461
| | - Jaromir Pastorek
- Department of Tumor Biology, Biomedical Research Center, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia; (V.S.); (P.B.); (L.C.); (M.L.); (K.G.); (M.Z.); (I.K.); (J.P.)
- Faculty of Medicine, Slovak Medical University, Limbová 12, 833 03 Bratislava, Slovakia
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Kajanova I, Zatovicova M, Jelenska L, Sedlakova O, Barathova M, Csaderova L, Debreova M, Lukacikova L, Grossmannova K, Labudova M, Golias T, Svastova E, Ludwig A, Muller P, Vojtesek B, Pastorek J, Pastorekova S. Impairment of carbonic anhydrase IX ectodomain cleavage reinforces tumorigenic and metastatic phenotype of cancer cells. Br J Cancer 2020; 122:1590-1603. [PMID: 32210366 PMCID: PMC7250822 DOI: 10.1038/s41416-020-0804-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 07/17/2019] [Revised: 12/30/2019] [Accepted: 03/03/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Carbonic anhydrase IX (CA IX) is a hypoxia-induced enzyme regulating tumour pH and facilitating cell migration/invasion. It is primarily expressed as a transmembrane cell-surface protein, but its ectodomain can be shed by ADAM17 to extracellular space. This study aims to elucidate the impact of CA IX shedding on cancer cells. METHODS We generated a non-shed CA IX mutant by deletion of amino acids 393-402 from the stalk region and studied its phenotypic effects compared to full-length, shedding-competent CA IX using a range of assays based on immunodetection, confocal microscopy, in vitro real-time cell monitoring and in vivo tumour cell inoculation using xenografted NMRI and C57BL/6J female mice. RESULTS We demonstrated that the impairment of shedding does not alter the ability of CA IX to bind ADAM17, internalise, form oligomers and regulate pH, but induces cancer-promoting changes in extracellular proteome. Moreover, it affects intrinsic properties of cells expressing the non-shed variant, in terms of their increased ability to migrate, generate primary tumours and form metastatic lesions in lungs. CONCLUSIONS Our results show that the ectodomain shedding controls pro-tumorigenic and pro-metastatic roles of the cell-associated CA IX and suggest that this phenomenon should be considered when developing CA IX-targeted therapeutic strategies.
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Affiliation(s)
- Ivana Kajanova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Miriam Zatovicova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Lenka Jelenska
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Olga Sedlakova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Monika Barathova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Lucia Csaderova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Michaela Debreova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Lubomira Lukacikova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Katarina Grossmannova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Martina Labudova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Tereza Golias
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Eliska Svastova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Andreas Ludwig
- 0000 0001 0728 696Xgrid.1957.aInstitute of Pharmacology and Toxicology, RWTH Aachen University, Wendlingweg 2, 52074 Aachen, Germany
| | - Petr Muller
- grid.419466.8RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 65653 Brno, Czech Republic
| | - Borivoj Vojtesek
- grid.419466.8RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 65653 Brno, Czech Republic
| | - Jaromir Pastorek
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Silvia Pastorekova
- 0000 0001 2180 9405grid.419303.cDepartment of Tumor Biology, Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
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