1
|
Zand A, Enkhbilguun S, Macharia JM, Budán F, Gyöngyi Z, Varjas T. Tartrazine Modifies the Activity of DNMT and HDAC Genes-Is This a Link between Cancer and Neurological Disorders? Nutrients 2023; 15:2946. [PMID: 37447272 DOI: 10.3390/nu15132946] [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: 06/11/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
In recent years, artificial additives, especially synthetic food colorants, were found to demonstrate wider properties compared to their natural equivalents; however, their health impact is still not totally mapped. Our study aimed to determine the long-term (30 and 90 days) exposure effect of one of the commonly used artificial food colorants, tartrazine, on NMRI mice. The applied dose of tartrazine referred to the human equivalent dose for acceptable daily intake (ADI). Further, we evaluated its impact on the transcription of a range of epigenetic effectors, members of the DNA methyltransferase (DNMT) as well as histone deacetylase (HDAC) families. Following the exposure, organ biopsies were collected from the lungs, kidneys, liver, and spleen, and the gene expression levels were determined by real-time quantitative reverse transcription PCR (RT-qPCR). Our results demonstrated significant upregulation of genes in the tested organs in various patterns followed by the intake of tartrazine on ADI. Since DNMT and HDAC genes are involved in different steps of carcinogenesis, have roles in the development of neurological disorders and the effect of dose of everyday exposure is rarely studied, further investigation is warranted to study these possible associations.
Collapse
Affiliation(s)
- Afshin Zand
- Department of Public Health Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary
| | - Sodbuyan Enkhbilguun
- Department of Public Health Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary
| | - John M Macharia
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pécs, H-7621 Pécs, Hungary
| | - Ferenc Budán
- Institute of Transdisciplinary Discoveries, Medical School, University of Pécs, H-7624 Pécs, Hungary
- Institute of Physiology, Medical School, University of Pécs, H-7624 Pécs, Hungary
| | - Zoltán Gyöngyi
- Department of Public Health Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary
| | - Timea Varjas
- Department of Public Health Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary
| |
Collapse
|
2
|
Brandt B, Németh M, Berta G, Szünstein M, Heffer M, Rauch TA, Pap M. A Promising Way to Overcome Temozolomide Resistance through Inhibition of Protein Neddylation in Glioblastoma Cell Lines. Int J Mol Sci 2023; 24:ijms24097929. [PMID: 37175636 PMCID: PMC10178391 DOI: 10.3390/ijms24097929] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 03/13/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
There is no effective therapy for the lately increased incidence of glioblastoma multiforme (GBM)-the most common primary brain tumor characterized by a high degree of invasiveness and genetic heterogeneity. Currently, DNA alkylating agent temozolomide (TMZ) is the standard chemotherapy. Nevertheless, TMZ resistance is a major problem in the treatment of GBM due to numerous molecular mechanisms related to DNA damage repair, epigenetic alterations, cellular drug efflux, apoptosis-autophagy, and overactive protein neddylation. Low molecular weight inhibitors of NEDD8-activating enzyme (NAE), such as MLN4924, attenuate protein neddylation and present a promising low-toxicity anticancer agent. The aim of our study was to find an effective combination treatment with TMZ and MLN4924 in our TMZ-resistant GBM cell lines and study the effect of these combination treatments on different protein expressions such as O6-methylguanine methyltransferase (MGMT) and p53. The combination treatment successfully decreased cell viability and sensitized TMZ-resistant cells to TMZ, foreshadowing a new treatment strategy for GBM.
Collapse
Affiliation(s)
- Barbara Brandt
- Department of Medical Biology and Central Electron Microscopic Laboratory, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Marica Németh
- Department of Medical Biology and Central Electron Microscopic Laboratory, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Gergely Berta
- Department of Medical Biology and Central Electron Microscopic Laboratory, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Máté Szünstein
- Department of Ecology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
| | - Marija Heffer
- Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Tibor A Rauch
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Marianna Pap
- Department of Medical Biology and Central Electron Microscopic Laboratory, Medical School, University of Pécs, 7624 Pécs, Hungary
| |
Collapse
|
3
|
Ocskay K, Juhász MF, Farkas N, Zádori N, Szakó L, Szakács Z, Szentesi A, Erőss B, Miklós E, Zemplényi A, Birkás B, Csathó Á, Hartung I, Nagy T, Czopf L, Izbéki F, Gajdán L, Papp M, Czakó L, Illés D, Marino MV, Mirabella A, Małecka-Panas E, Zatorski H, Susak Y, Opalchuk K, Capurso G, Apadula L, Gheorghe C, Saizu IA, Petersen OH, de-Madaria E, Rosendahl J, Párniczky A, Hegyi P. Recurrent acute pancreatitis prevention by the elimination of alcohol and ciga rette smoking (REAPPEAR): protocol of a randomised controlled trial and a cohort study. BMJ Open 2022; 12:e050821. [PMID: 34983758 PMCID: PMC8728419 DOI: 10.1136/bmjopen-2021-050821] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 11/12/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND/OBJECTIVES Acute recurrent pancreatitis (ARP) due to alcohol and/or tobacco abuse is a preventable disease which lowers quality of life and can lead to chronic pancreatitis. The REAPPEAR study aims to investigate whether a combined patient education and cessation programme for smoking and alcohol prevents ARP. METHODS AND ANALYSIS The REAPPEAR study consists of an international multicentre randomised controlled trial (REAPPEAR-T) testing the efficacy of a cessation programme on alcohol and smoking and a prospective cohort study (REAPPEAR-C) assessing the effects of change in alcohol consumption and smoking (irrespective of intervention). Daily smoker patients hospitalised with alcohol-induced acute pancreatitis (AP) will be enrolled. All patients will receive a standard intervention priorly to encourage alcohol and smoking cessation. Participants will be subjected to laboratory testing, measurement of blood pressure and body mass index and will provide blood, hair and urine samples for later biomarker analysis. Addiction, motivation to change, socioeconomic status and quality of life will be evaluated with questionnaires. In the trial, patients will be randomised either to the cessation programme with 3-monthly visits or to the control group with annual visits. Participants of the cessation programme will receive a brief intervention at every visit with direct feedback on their alcohol consumption based on laboratory results. The primary endpoint will be the composite of 2-year all-cause recurrence rate of AP and/or 2-year all-cause mortality. The cost-effectiveness of the cessation programme will be evaluated. An estimated 182 participants will be enrolled per group to the REAPPEAR-T with further enrolment to the cohort. ETHICS AND DISSEMINATION The study was approved by the Scientific and Research Ethics Committee of the Hungarian Medical Research Council (40394-10/2020/EÜIG), all local ethical approvals are in place. Results will be disseminated at conferences and in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT04647097.
Collapse
Affiliation(s)
- Klementina Ocskay
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Márk Félix Juhász
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Nelli Farkas
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
- Medical School, Institute of Bioanalysis, University of Pécs, Pécs, Hungary
| | - Noémi Zádori
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Lajos Szakó
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Zsolt Szakács
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
| | - Andrea Szentesi
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
| | - Bálint Erőss
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Emőke Miklós
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Antal Zemplényi
- Faculty of Pharmacy, Division of Pharmacoeconomics, University of Pécs, Pécs, Hungary
- Center for Health Technology Assessment, University of Pécs, Pécs, Hungary
| | - Béla Birkás
- Medical School, Institute of Behavioural Sciences, University of Pécs, Pécs, Hungary
| | - Árpád Csathó
- Medical School, Institute of Behavioural Sciences, University of Pécs, Pécs, Hungary
| | - István Hartung
- Medical School, Institute of Behavioural Sciences, University of Pécs, Pécs, Hungary
| | - Tamás Nagy
- Medical School, Department of Laboratory Medicine, University of Pécs, Pécs, Hungary
| | - László Czopf
- Medical School, First Department of Medicine, Division of Cardiology and Angiology, University of Pécs, Pécs, Hungary
| | - Ferenc Izbéki
- First Department of Internal Medicine, Szent György University Teaching Hospital of Fejér County, Székesfehérvár, Hungary
| | - László Gajdán
- First Department of Internal Medicine, Szent György University Teaching Hospital of Fejér County, Székesfehérvár, Hungary
| | - Mária Papp
- Department of Internal Medicine, Division of Gastroenterology, University of Debrecen, Debrecen, Hungary
| | - László Czakó
- Faculty of Medicine, First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Dóra Illés
- Faculty of Medicine, First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Marco V Marino
- General and Emergency Surgery Department, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Palermo, Italy
| | - Antonello Mirabella
- General and Emergency Surgery Department, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Palermo, Italy
| | - Ewa Małecka-Panas
- Department of Digestive Tract Diseases, Medical University of Lodz, Lodz, Poland
| | - Hubert Zatorski
- Department of Digestive Tract Diseases, Medical University of Lodz, Lodz, Poland
| | - Yaroslav Susak
- Department of Surgery, Bogomolets National Medical University, Kyiv, Ukraine
| | - Kristina Opalchuk
- Department of Surgery, Bogomolets National Medical University, Kyiv, Ukraine
| | - Gabriele Capurso
- Pancreas Translational and Clinical Research Center, San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | - Laura Apadula
- Pancreas Translational and Clinical Research Center, San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | - Cristian Gheorghe
- Clinical Institute Fundeni, Bucuresti, Romania
- Carol Davila University of Medicine and Pharmacy, Bucuresti, Romania
| | - Ionut Adrian Saizu
- Clinical Institute Fundeni, Bucuresti, Romania
- Carol Davila University of Medicine and Pharmacy, Bucuresti, Romania
| | | | - Enrique de-Madaria
- Gastroenterology Department, Alicante University General Hospital, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
| | - Jonas Rosendahl
- Department of Internal Medicine I, Martin Luther University, Halle, Germany
| | - Andrea Párniczky
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
- Heim Pál National Pediatric Institute, Budapest, Hungary
| | - Péter Hegyi
- Institute for Translational Medicine, Szentágothai Research Centre, Medical School, University of Pécs, Pécs, Hungary
- Centre for Translational Medicine, Semmelweis University, Budapest, Hungary
| |
Collapse
|
4
|
Csepregi R, Temesfői V, Sali N, Poór M, W Needs P, A Kroon P, Kőszegi T. A One-Step Extraction and Luminescence Assay for Quantifying Glucose and ATP Levels in Cultured HepG2 Cells. Int J Mol Sci 2018; 19:E2670. [PMID: 30205572 PMCID: PMC6163413 DOI: 10.3390/ijms19092670] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 08/25/2018] [Revised: 08/31/2018] [Accepted: 08/31/2018] [Indexed: 12/25/2022] Open
Abstract
A fluorescence-based enzymatic microplate intracellular glucose assay was designed and fully validated. The method was tested in a hepatocellular cancer cell line (HepG2). Our novel one-step extraction reagent gave stable cell lysates for glucose, adenosine triphosphate (ATP), and total protein determination from the same sample. Limit of detection for glucose was 0.13 µM (26 pmol/well), which is superior to commercially available glucose assays. Both intra- and interday assay imprecision in HepG2 cultures were less than 12% coefficient of variance (CV). In cell lysates spiked with glucose, recovery at two levels varied between 83.70% and 91.81%, and both linearity and stability were acceptable. HepG2 cells treated with agents affecting glucose uptake/metabolism (phloretin, quercetin, quercetin-3'-sulfate, NaF, 3-bromopyruvate, NaN₃, oligomycin A, ochratoxin A, cytochalasin B, and anti-GLUT1 antibody) showed dose-dependent changes in glucose and ATP levels without total protein (cell) loss. Finally, we performed flow cytometric glucose uptake measurement in the treated cells using 2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxyglucose fluorescent glucose analog. Glucose uptake did not always mirror the intracellular glucose levels, which most likely reflects the differences between the two methodologies. However, interpreting data obtained by both methods and taking ATP/protein levels at the same time, one can get information on the mode of action of the compounds.
Collapse
Affiliation(s)
- Rita Csepregi
- Department of Laboratory Medicine, Medical School, University of Pécs, Ifjúság u. 13, H-7624 Pécs, Hungary.
- János Szentágothai Research Center, Ifjúság u. 20, H-7624 Pécs, Hungary.
| | - Viktória Temesfői
- Department of Laboratory Medicine, Medical School, University of Pécs, Ifjúság u. 13, H-7624 Pécs, Hungary.
- János Szentágothai Research Center, Ifjúság u. 20, H-7624 Pécs, Hungary.
| | - Nikolett Sali
- Department of Laboratory Medicine, Medical School, University of Pécs, Ifjúság u. 13, H-7624 Pécs, Hungary.
| | - Miklós Poór
- János Szentágothai Research Center, Ifjúság u. 20, H-7624 Pécs, Hungary.
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Szigeti u. 12, H-7624 Pécs, Hungary.
| | - Paul W Needs
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UA, UK.
| | - Paul A Kroon
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UA, UK.
| | - Tamás Kőszegi
- Department of Laboratory Medicine, Medical School, University of Pécs, Ifjúság u. 13, H-7624 Pécs, Hungary.
- János Szentágothai Research Center, Ifjúság u. 20, H-7624 Pécs, Hungary.
| |
Collapse
|