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Szebeni GJ, Alföldi R, Nagy LI, Neuperger P, Gémes N, Balog JÁ, Tiszlavicz L, Puskás LG. Introduction of an Ultraviolet C-Irradiated 4T1 Murine Breast Cancer Whole-Cell Vaccine Model. Vaccines (Basel) 2023; 11:1254. [PMID: 37515069 PMCID: PMC10386199 DOI: 10.3390/vaccines11071254] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/11/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
The advent of immunotherapy has revolutionized cancer treatments. However, the application of immune checkpoint inhibitors may entail severe side effects, with the risk of therapeutic resistance. The generation of chimeric antigen receptor (CAR) T-cells or CAR-NK cells requires specialized molecular laboratories, is costly, and is difficult to adapt to the rapidly growing number of cancer patients. To provide a simpler but effective immune therapy, a whole-cell tumor vaccine protocol was established based on ultraviolet C (UCV)-irradiated 4T1 triple-negative breast cancer cells. The apoptosis of tumor cells after UVC irradiation was verified using resazurin and Annexin V/propidium iodide flow cytometric assays. Protective immunity was achieved in immunized BALB/c mice, showing partial remission. Adoptive transfer of splenocytes or plasma from the mice in remission showed a protective effect in the naive BALB/c mice that received a living 4T1 tumor cell injection. 4T1-specific IgG antibodies were recorded in the plasma of the mice following immunization with the whole-cell vaccine. Interleukin-2 (IL-2) and oligonucleotide 2006 (ODN2006) adjuvants were used for the transfer of splenocytes from C57BL/6 mice into cyclophosphamide-treated BALB/c mice, resulting in prolonged survival, reduced tumor growth, and remission in 33% of the cases, without the development of the graft-versus-host disease. Our approach offers a simple, cost-effective whole-cell vaccine protocol that can be administered to immunocompetent healthy organisms. The plasma or the adoptive transfer of HLA-matching immunized donor-derived leukocytes could be used as an immune cell therapy for cancer patients.
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Affiliation(s)
- Gábor J Szebeni
- Laboratory of Functional Genomics, Biological Research Centre, Temesvári krt. 62, H6726 Szeged, Hungary
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, H6726 Szeged, Hungary
- CS-Smartlab Devices Ltd., Ady E. u. 14, H7761 Kozármisleny, Hungary
| | - Róbert Alföldi
- AstridBio Technologies Ltd., Wimmer Fülöp utca 1, H6728 Szeged, Hungary
| | - Lajos I Nagy
- Avidin Ltd., Alsó Kikötő sor 11/D, H6726 Szeged, Hungary
| | - Patrícia Neuperger
- Laboratory of Functional Genomics, Biological Research Centre, Temesvári krt. 62, H6726 Szeged, Hungary
| | - Nikolett Gémes
- Laboratory of Functional Genomics, Biological Research Centre, Temesvári krt. 62, H6726 Szeged, Hungary
| | - József Á Balog
- Laboratory of Functional Genomics, Biological Research Centre, Temesvári krt. 62, H6726 Szeged, Hungary
| | - László Tiszlavicz
- Department of Pathology, University of Szeged, Állomás u. 2, H6725 Szeged, Hungary
| | - László G Puskás
- Laboratory of Functional Genomics, Biological Research Centre, Temesvári krt. 62, H6726 Szeged, Hungary
- Avidin Ltd., Alsó Kikötő sor 11/D, H6726 Szeged, Hungary
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2
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Montagud A, Béal J, Tobalina L, Traynard P, Subramanian V, Szalai B, Alföldi R, Puskás L, Valencia A, Barillot E, Saez-Rodriguez J, Calzone L. Patient-specific Boolean models of signalling networks guide personalised treatments. eLife 2022; 11:72626. [PMID: 35164900 PMCID: PMC9018074 DOI: 10.7554/elife.72626] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 07/30/2021] [Accepted: 01/27/2022] [Indexed: 11/22/2022] Open
Abstract
Prostate cancer is the second most occurring cancer in men worldwide. To better understand the mechanisms of tumorigenesis and possible treatment responses, we developed a mathematical model of prostate cancer which considers the major signalling pathways known to be deregulated. We personalised this Boolean model to molecular data to reflect the heterogeneity and specific response to perturbations of cancer patients. A total of 488 prostate samples were used to build patient-specific models and compared to available clinical data. Additionally, eight prostate cell line-specific models were built to validate our approach with dose-response data of several drugs. The effects of single and combined drugs were tested in these models under different growth conditions. We identified 15 actionable points of interventions in one cell line-specific model whose inactivation hinders tumorigenesis. To validate these results, we tested nine small molecule inhibitors of five of those putative targets and found a dose-dependent effect on four of them, notably those targeting HSP90 and PI3K. These results highlight the predictive power of our personalised Boolean models and illustrate how they can be used for precision oncology.
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Affiliation(s)
| | - Jonas Béal
- Institut Curie, PSL Research University, Paris, France
| | - Luis Tobalina
- Faculty of Medicine, Joint Research Centre for Computational Biomedicine (JRC-COMBINE), RWTH Aachen University, Aachen, Germany
| | | | - Vigneshwari Subramanian
- Faculty of Medicine, Joint Research Centre for Computational Biomedicine (JRC-COMBINE), RWTH Aachen University, Aachen, Germany
| | - Bence Szalai
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | | | | | | | | | - Julio Saez-Rodriguez
- Institute of Computational Biomedicine, Heidelberg University, Heidelberg, Germany
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3
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Szalai B, Subramanian V, Holland CH, Alföldi R, Puskás LG, Saez-Rodriguez J. Signatures of cell death and proliferation in perturbation transcriptomics data-from confounding factor to effective prediction. Nucleic Acids Res 2019; 47:10010-10026. [PMID: 31552418 PMCID: PMC6821211 DOI: 10.1093/nar/gkz805] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 01/27/2023] Open
Abstract
Transcriptional perturbation signatures are valuable data sources for functional genomics. Linking perturbation signatures to screenings opens the possibility to model cellular phenotypes from expression data and to identify efficacious drugs. We linked perturbation transcriptomics data from the LINCS-L1000 project with cell viability information upon genetic (Achilles project) and chemical (CTRP screen) perturbations yielding more than 90 000 signature–viability pairs. An integrated analysis showed that the cell viability signature is a major factor underlying perturbation signatures. The signature is linked to transcription factors regulating cell death, proliferation and division time. We used the cell viability–signature relationship to predict viability from transcriptomics signatures, and identified and validated compounds that induce cell death in tumor cell lines. We showed that cellular toxicity can lead to unexpected similarity of signatures, confounding mechanism of action discovery. Consensus compound signatures predicted cell-specific drug sensitivity, even if the signature is not measured in the same cell line, and outperformed conventional drug-specific features. Our results can help in understanding mechanisms behind cell death and removing confounding factors of transcriptomic perturbation screens. To interactively browse our results and predict cell viability in new gene expression samples, we developed CEVIChE (CEll VIability Calculator from gene Expression; https://saezlab.shinyapps.io/ceviche/).
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Affiliation(s)
- Bence Szalai
- RWTH Aachen University, Faculty of Medicine, Joint Research Centre for Computational Biomedicine (JRC-COMBINE), 52074 Aachen, Germany.,Semmelweis University, Faculty of Medicine, Department of Physiology, H-1094 Budapest, Hungary
| | - Vigneshwari Subramanian
- RWTH Aachen University, Faculty of Medicine, Joint Research Centre for Computational Biomedicine (JRC-COMBINE), 52074 Aachen, Germany
| | - Christian H Holland
- RWTH Aachen University, Faculty of Medicine, Joint Research Centre for Computational Biomedicine (JRC-COMBINE), 52074 Aachen, Germany.,Heidelberg University, Faculty of Medicine and Heidelberg University Hospital, Institute of Computational Biomedicine, Bioquant, 69120 Heidelberg, Germany
| | | | | | - Julio Saez-Rodriguez
- RWTH Aachen University, Faculty of Medicine, Joint Research Centre for Computational Biomedicine (JRC-COMBINE), 52074 Aachen, Germany.,Heidelberg University, Faculty of Medicine and Heidelberg University Hospital, Institute of Computational Biomedicine, Bioquant, 69120 Heidelberg, Germany
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4
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Hackler L, Gyuris M, Huzián O, Alföldi R, Szebeni GJ, Madácsi R, Knapp L, Kanizsai I, Puskás LG. Enantioselective Synthesis of 8-Hydroxyquinoline Derivative, Q134 as a Hypoxic Adaptation Inducing Agent. Molecules 2019; 24:molecules24234269. [PMID: 31771153 PMCID: PMC6930632 DOI: 10.3390/molecules24234269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/05/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 11/16/2022] Open
Abstract
Hypoxia is a common feature of neurodegenerative diseases, including Alzheimer’s disease that may be responsible for disease pathogenesis and progression. Therefore, the hypoxia-inducible factor (HIF)1 system, responsible for hypoxic adaptation, is a potential therapeutic target to combat these diseases by activators of cytoprotective protein induction. We have selected a candidate molecule from our cytoprotective hydroxyquinoline library and developed a novel enantioselective synthesis for the production of its enantiomers. The use of quinidine or quinine as a catalyst enabled the preparation of enantiomer-pure products. We have utilized in vitro assays to evaluate cytoprotective activity, a fluorescence-activated cell sorting (FACS) based assay measuring mitochondrial membrane potential changes, and gene and protein expression analysis. Our data showed that the enantiomers of Q134 showed potent and similar activity in all tested assays. We have concluded that the enantiomers exert their cytoprotective activity via the HIF1 system through HIF1A protein stabilization.
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Affiliation(s)
- László Hackler
- Avidin Ltd., 6726 Szeged, Hungary (M.G.); (G.J.S.); (R.M.); (I.K.)
| | - Márió Gyuris
- Avidin Ltd., 6726 Szeged, Hungary (M.G.); (G.J.S.); (R.M.); (I.K.)
| | - Orsolya Huzián
- Avicor Ltd., 6726 Szeged, Hungary; (O.H.); (R.A.); (L.K.)
| | - Róbert Alföldi
- Avicor Ltd., 6726 Szeged, Hungary; (O.H.); (R.A.); (L.K.)
| | - Gábor J. Szebeni
- Avidin Ltd., 6726 Szeged, Hungary (M.G.); (G.J.S.); (R.M.); (I.K.)
| | - Ramóna Madácsi
- Avidin Ltd., 6726 Szeged, Hungary (M.G.); (G.J.S.); (R.M.); (I.K.)
| | - Levente Knapp
- Avicor Ltd., 6726 Szeged, Hungary; (O.H.); (R.A.); (L.K.)
| | - Iván Kanizsai
- Avidin Ltd., 6726 Szeged, Hungary (M.G.); (G.J.S.); (R.M.); (I.K.)
| | - László G. Puskás
- Avidin Ltd., 6726 Szeged, Hungary (M.G.); (G.J.S.); (R.M.); (I.K.)
- Aperus Pharma Co. Ltd., 6726 Szeged, Hungary
- Correspondence: ; Tel.: +36-62-202107
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5
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Alföldi R, Balog JÁ, Faragó N, Halmai M, Kotogány E, Neuperger P, Nagy LI, Fehér LZ, Szebeni GJ, Puskás LG. Single Cell Mass Cytometry of Non-Small Cell Lung Cancer Cells Reveals Complexity of In vivo And Three-Dimensional Models over the Petri-dish. Cells 2019; 8:E1093. [PMID: 31527554 PMCID: PMC6770097 DOI: 10.3390/cells8091093] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 07/31/2019] [Revised: 09/12/2019] [Accepted: 09/15/2019] [Indexed: 12/28/2022] Open
Abstract
Single cell genomics and proteomics with the combination of innovative three-dimensional (3D) cell culture techniques can open new avenues toward the understanding of intra-tumor heterogeneity. Here, we characterize lung cancer markers using single cell mass cytometry to compare different in vitro cell culturing methods: two-dimensional (2D), carrier-free, or bead-based 3D culturing with in vivo xenografts. Proliferation, viability, and cell cycle phase distribution has been investigated. Gene expression analysis enabled the selection of markers that were overexpressed: TMEM45A, SLC16A3, CD66, SLC2A1, CA9, CD24, or repressed: EGFR either in vivo or in long-term 3D cultures. Additionally, TRA-1-60, pan-keratins, CD326, Galectin-3, and CD274, markers with known clinical significance have been investigated at single cell resolution. The described twelve markers convincingly highlighted a unique pattern reflecting intra-tumor heterogeneity of 3D samples and in vivo A549 lung cancer cells. In 3D systems CA9, CD24, and EGFR showed higher expression than in vivo. Multidimensional single cell proteome profiling revealed that 3D cultures represent a transition from 2D to in vivo conditions by intermediate marker expression of TRA-1-60, TMEM45A, pan-keratin, CD326, MCT4, Gal-3, CD66, GLUT1, and CD274. Therefore, 3D cultures of NSCLC cells bearing more putative cancer targets should be used in drug screening as the preferred technique rather than the Petri-dish.
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Affiliation(s)
- Róbert Alföldi
- Avicor Ltd., H6726 Szeged, Hungary;
- University of Szeged, PhD School in Biology, H6726 Szeged, Hungary;
- AstridBio Technologies Ltd., H6726 Szeged, Hungary
| | - József Á. Balog
- University of Szeged, PhD School in Biology, H6726 Szeged, Hungary;
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
| | - Nóra Faragó
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
- Avidin Ltd., H6726 Szeged, Hungary; (L.I.N.); (L.Z.F.)
- Research Group for Cortical Microcircuits of the Hungarian Academy of Sciences, Department of Physiology, Anatomy and Neuroscience, University of Szeged, H6726 Szeged, Hungary
| | - Miklós Halmai
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
| | - Edit Kotogány
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
| | - Patrícia Neuperger
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
| | - Lajos I. Nagy
- Avidin Ltd., H6726 Szeged, Hungary; (L.I.N.); (L.Z.F.)
| | | | - Gábor J. Szebeni
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, H6726 Szeged, Hungary
| | - László G. Puskás
- Avicor Ltd., H6726 Szeged, Hungary;
- Laboratory of Functional Genomics, HAS BRC, H6726 Szeged, Hungary; (N.F.); (M.H.); (E.K.)
- Avidin Ltd., H6726 Szeged, Hungary; (L.I.N.); (L.Z.F.)
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6
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Szebeni GJ, Balog JA, Demjén A, Alföldi R, Végi VL, Fehér LZ, Mán I, Kotogány E, Gubán B, Batár P, Hackler L, Kanizsai I, Puskás LG. Imidazo[1,2- b]pyrazole-7-carboxamides Induce Apoptosis in Human Leukemia Cells at Nanomolar Concentrations. Molecules 2018; 23:E2845. [PMID: 30388846 PMCID: PMC6278434 DOI: 10.3390/molecules23112845] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/25/2018] [Accepted: 10/29/2018] [Indexed: 01/14/2023] Open
Abstract
Leukemia, the malignancy of the hematopoietic system accounts for 10% of cancer cases with poor overall survival rate in adults; therefore, there is a high unmet medical need for the development of novel therapeutics. Eight imidazo[1,2-b]pyrazole-7-carboxamides have been tested for cytotoxic activity against five leukemia cell lines: Acute promyelocytic leukemia (HL-60), acute monocytic leukemia (THP-1), acute T-lymphoblastic leukemia (MOLT-4), biphenotypic B myelomonocytic leukemia (MV-4-11), and erythroleukemia (K-562) cells in vitro. Imidazo[1,2-b]pyrazole-7-carboxamides hampered the viability of all five leukemia cell lines with different potential. Optimization through structure activity relationship resulted in the following IC50 values for the most effective lead compound DU385: 16.54 nM, 27.24 nM, and 32.25 nM on HL-60, MOLT-4, MV-4-11 cells, respectively. Human primary fibroblasts were much less sensitive in the applied concentration range. Both monolayer or spheroid cultures of murine 4T1 and human MCF7 breast cancer cells were less sensitive to treatment with 1.5⁻10.8 μM IC50 values. Flow cytometry confirmed the absence of necrosis and revealed 60% late apoptotic population for MV-4-11, and 50% early apoptotic population for HL-60. MOLT-4 cells showed only about 30% of total apoptotic population. Toxicogenomic study of DU385 on the most sensitive MV-4-11 cells revealed altered expression of sixteen genes as early (6 h), midterm (12 h), and late response (24 h) genes upon treatment. Changes in ALOX5AP, TXN, and SOD1 expression suggested that DU385 causes oxidative stress, which was confirmed by depletion of cellular glutathione and mitochondrial membrane depolarization induction. Imidazo[1,2-b]pyrazole-7-carboxamides reported herein induced apoptosis in human leukemia cells at nanomolar concentrations.
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Affiliation(s)
- Gábor J Szebeni
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Közép fasor 52, H-6726 Szeged, Hungary.
| | - József A Balog
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - András Demjén
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - Róbert Alföldi
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - Vanessza L Végi
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | | | - Imola Mán
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - Edit Kotogány
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - Barbara Gubán
- Department of Dermatology and Allergology, University of Szeged, Korányi fasor 6, H-6720 Szeged, Hungary.
| | - Péter Batár
- Department of Hematology, Institute of Internal Medicine, University of Debrecen, Nagyerdei Körút 98, 4032 Debrecen, Hungary.
| | - László Hackler
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - Iván Kanizsai
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - László G Puskás
- Laboratory of Functional Genomics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
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7
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Demjén A, Alföldi R, Angyal A, Gyuris M, Hackler L, Szebeni GJ, Wölfling J, Puskás LG, Kanizsai I. Synthesis, cytotoxic characterization, and SAR study of imidazo[1,2-b
]pyrazole-7-carboxamides. Arch Pharm (Weinheim) 2018; 351:e1800062. [DOI: 10.1002/ardp.201800062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/25/2018] [Accepted: 05/02/2018] [Indexed: 12/25/2022]
Affiliation(s)
- András Demjén
- AVIDIN Ltd.; Szeged Hungary
- Department of Organic Chemistry; University of Szeged; Szeged Hungary
| | | | - Anikó Angyal
- AVIDIN Ltd.; Szeged Hungary
- Department of Organic Chemistry; University of Szeged; Szeged Hungary
| | | | | | - Gábor J. Szebeni
- Laboratory of Functional Genomics, Institute of Genetics, Biological Research Centre; Hungarian Academy of Sciences; Szeged Hungary
| | - János Wölfling
- Department of Organic Chemistry; University of Szeged; Szeged Hungary
| | - László G. Puskás
- AVIDIN Ltd.; Szeged Hungary
- Laboratory of Functional Genomics, Institute of Genetics, Biological Research Centre; Hungarian Academy of Sciences; Szeged Hungary
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Szebeni GJ, Balázs Á, Madarász I, Pócz G, Ayaydin F, Kanizsai I, Fajka-Boja R, Alföldi R, Hackler L, Puskás LG. Achiral Mannich-Base Curcumin Analogs Induce Unfolded Protein Response and Mitochondrial Membrane Depolarization in PANC-1 Cells. Int J Mol Sci 2017; 18:ijms18102105. [PMID: 28991167 PMCID: PMC5666787 DOI: 10.3390/ijms18102105] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [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: 09/26/2017] [Revised: 10/03/2017] [Accepted: 10/03/2017] [Indexed: 12/17/2022] Open
Abstract
Achiral Mannich-type curcumin analogs have been synthetized and assayed for their cytotoxic activity. The anti-proliferative and cytotoxic activity of curcuminoids has been tested on human non-small-cell lung carcinoma (A549), hepatocellular carcinoma (HepG2) and pancreatic cancer cell line (PANC-1). Based on the highest anti-proliferative activity nine drug candidates were further tested and proved to cause phosphatidylserine exposure as an early sign of apoptosis. Curcumin analogs with the highest apoptotic activity were selected for mechanistic studies in the most sensitive PANC-1 cells. Cytotoxic activity was accompanied by cytostatic effect since curcumin and analogs treatment led to G0/G1 cell cycle arrest. Moreover, cytotoxic effect could be also detected via the accumulation of curcuminoids in the endoplasmic reticulum (ER) and the up-regulation of ER stress-related unfolded protein response (UPR) genes: HSPA5, ATF4, XBP1, and DDIT3. The activated UPR induced mitochondrial membrane depolarization, caspase-3 activation and subsequent DNA breakdown in PANC-1 cells. Achiral curcumin analogs, C509, C521 and C524 possessed superior, 40-times more potent cytotoxic activity compared to natural dihydroxy-dimetoxycurcumin in PANC-1 cells.
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Affiliation(s)
- Gábor J Szebeni
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
- Laboratory of Functional Genomics, Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - Árpád Balázs
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | | | - Gábor Pócz
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - Ferhan Ayaydin
- Cellular Imaging Laboratory, Institute of Plant Biology, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - Iván Kanizsai
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - Roberta Fajka-Boja
- Artificial Chromosome and Stem Cell Research Laboratory, Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - Róbert Alföldi
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
| | - László Hackler
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
- Laboratory of Functional Genomics, Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
| | - László G Puskás
- Avidin Ltd., Alsó kikötő sor 11/D, H-6726 Szeged, Hungary.
- Laboratory of Functional Genomics, Institute of Genetics, Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, H-6726 Szeged, Hungary.
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9
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Gyuris M, Hackler L, Nagy LI, Alföldi R, Rédei E, Marton A, Vellai T, Faragó N, Ózsvári B, Hetényi A, Tóth GK, Sipos P, Kanizsai I, Puskás LG. Mannich Curcuminoids as Potent Anticancer Agents. Arch Pharm (Weinheim) 2017; 350. [PMID: 28547897 DOI: 10.1002/ardp.201700005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 01/05/2017] [Revised: 04/25/2017] [Accepted: 04/25/2017] [Indexed: 11/10/2022]
Abstract
A series of novel curcuminoids were synthesised for the first time via a Mannich-3CR/organocatalysed Claisen-Schmidt condensation sequence. Structure-activity relationship (SAR) studies were performed by applying viability assays and holographic microscopic imaging to these curcumin analogues for anti-proliferative activity against A549 and H1975 lung adenocarcinoma cells. The TNFα-induced NF-κB inhibition and autophagy induction effects correlated strongly with the cytotoxic potential of the analogues. Significant inhibition of tumour growth was observed when the most potent analogue 44 was added in liposomes at one-sixth of the maximally tolerated dose in the A549 xenograft model. The novel spectrum of activity of these Mannich curcuminoids warrants further preclinical investigations.
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Affiliation(s)
| | | | | | | | | | - Annamária Marton
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Tibor Vellai
- Faculty of General Medicine, Department of Medical Chemistry, University of Szeged, Szeged, Hungary
| | | | | | | | - Gábor K Tóth
- Department of Genetics, Eötvös Loránd University, Budapest, Hungary
| | - Péter Sipos
- Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Szeged, Szeged, Hungary
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Alföldi R, Szebeni JG, Puskás LG. [The potential of three-dimensional tumor models and cell culturing in cancer research and diagnostics]. Magy Onkol 2015; 59:303-309. [PMID: 26665190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 07/15/2015] [Indexed: 06/05/2023]
Abstract
In vitro testing of antitumor agents on human cancer cell lines has become essential in pharmaceutical research and in clinical practice. Although the most widely used technique is the two-dimensional cell growing protocol (in tissue culture plates), the new three-dimensional methods are becoming more and more popular as their structure and complexity is more similar to the microenvironment of the real tumor. The aim of the present study is to describe the most widely used in vitro three-dimensional tumor models and to compare a RAFT(TM) three dimensional in vitro tumor model with the traditional two-dimensional tumor cell cultures. In the study, the viability and the enzyme activity of cultured A549 non-small cell lung cancer (NSCLC) cells under different conditions were compared. The results show that while the number of necrotic cells increased significantly (20-fold; 2D/A549 T75 conventional tissue culture flask 1.6%; 2D/A549-collagen coated T75 tissue culture flask 1.45%, RAFT(TM) 22.11%) during long culturing period in the RAFT(TM) three-dimensional in vitro tumor model, there was no significant difference during the conventional antitumor screening period (3-5 day) compared to the traditional two-dimensional cell cultures. The structure of the tumor cell islets grown with RAFT(TM) is much more complex than that of the traditional two-dimensional cultures. Thus, similarly to the in vivo tumor microenvironment, there is also a collagen matrix in the extracellular space which can have significant effect on the diffusion of the antitumor agents to cells. In conclusion, it can be stated that testing of antitumor agents on tumor cells cultured in three-dimensional systems can be an important complementary method to the traditional two-dimensional in vitro analyses. The results of the new three-dimensional method can be more easily applied in the in vivo analysis and translated into clinical practice.
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Affiliation(s)
- Róbert Alföldi
- AVIDIN Kutató Fejlesztõ és Kereskedelmi Kft., Szeged, Hungary.
| | | | - László G Puskás
- AVIDIN Kutató Fejlesztõ és Kereskedelmi Kft., Szeged, Hungary.
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Tóth ME, Szegedi V, Varga E, Juhász G, Horváth J, Borbély E, Csibrány B, Alföldi R, Lénárt N, Penke B, Sántha M. Overexpression of Hsp27 ameliorates symptoms of Alzheimer's disease in APP/PS1 mice. Cell Stress Chaperones 2013; 18:759-71. [PMID: 23605646 PMCID: PMC3789881 DOI: 10.1007/s12192-013-0428-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 04/03/2013] [Accepted: 04/04/2013] [Indexed: 01/16/2023] Open
Abstract
Hsp27 belongs to the small heat shock protein family, which are ATP-independent chaperones. The most important function of Hsp27 is based on its ability to bind non-native proteins and inhibit the aggregation of incorrectly folded proteins maintaining them in a refolding-competent state. Additionally, it has anti-apoptotic and antioxidant activities. To study the effect of Hsp27 on memory and synaptic functions, amyloid-β (Aβ) accumulation, and neurodegeneration, we generated transgenic mice overexpressing human Hsp27 protein and crossed with APPswe/PS1dE9 mouse strain, a mouse model of Alzheimer's disease (AD). Using different behavioral tests, we found that spatial learning was impaired in AD model mice and was rescued by Hsp27 overexpression. Electrophysiological recordings have revealed that excitability of neurons was significantly increased, and long-term potentiation (LTP) was impaired in AD model mice, whereas they were normalized in Hsp27 overexpressing AD model mice. Using anti-amyloid antibody, we counted significantly less amyloid plaques in the brain of APPswe/PS1dE9/Hsp27 animals compared to AD model mice. These results suggest that overexpression of Hsp27 protein might ameliorate certain symptoms of AD.
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Affiliation(s)
- Melinda Erzsébet Tóth
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvari Ave. 62, 6726, Szeged, Hungary,
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