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Moulton C, Murri A, Benotti G, Fantini C, Duranti G, Ceci R, Grazioli E, Cerulli C, Sgrò P, Rossi C, Magno S, Di Luigi L, Caporossi D, Parisi A, Dimauro I. The impact of physical activity on promoter-specific methylation of genes involved in the redox-status and disease progression: A longitudinal study on post-surgery female breast cancer patients undergoing medical treatment. Redox Biol 2024; 70:103033. [PMID: 38211440 PMCID: PMC10821067 DOI: 10.1016/j.redox.2024.103033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/30/2023] [Accepted: 01/04/2024] [Indexed: 01/13/2024] Open
Abstract
Most anticancer treatments act on oxidative-stress pathways by producing reactive oxygen species (ROS) to kill cancer cells, commonly resulting in consequential drug-induced systemic cytotoxicity. Physical activity (PA) has arisen as an integrative cancer therapy, having positive health effects, including in redox-homeostasis. Here, we investigated the impact of an online supervised PA program on promoter-specific DNA methylation, and corresponding gene expression/activity, in 3 antioxidants- (SOD1, SOD2, and CAT) and 3 breast cancer (BC)-related genes (BRCA1, L3MBTL1 and RASSF1A) in a population-based sample of women diagnosed with primary BC, undergoing medical treatment. We further examined mechanisms involved in methylating and demethylating pathways, predicted biological pathways and interactions of exercise-modulated molecules, and the functional relevance of modulated antioxidant markers on parameters related to aerobic capacity/endurance, physical fatigue and quality of life (QoL). PA maintained levels of SOD activity in blood plasma, and at the cellular level significantly increased SOD2 mRNA (≈+77 %), contrary to their depletion due to medical treatment. This change was inversely correlated with DNA methylation in SOD2 promoter (≈-20 %). Similarly, we found a significant effect of PA only on L3MBTL1 promoter methylation (≈-25 %), which was inversely correlated with its mRNA (≈+43 %). Finally, PA increased TET1 mRNA levels (≈+15 %) and decreased expression of DNMT3B mRNA (≈-28 %). Our results suggest that PA-modulated DNA methylation affects several signalling pathways/biological activities involved in the cellular oxidative stress response, chromatin organization/regulation, antioxidant activity and DNA/protein binding. These changes may positively impact clinical outcomes and improve the response to cancer treatment in post-surgery BC patients.
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Affiliation(s)
- Chantalle Moulton
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Arianna Murri
- Unit of Physical Exercise and Sport Sciences, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Gianmarco Benotti
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Cristina Fantini
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Guglielmo Duranti
- Unit of Biochemistry and Molecular Biology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Roberta Ceci
- Unit of Biochemistry and Molecular Biology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Elisa Grazioli
- Unit of Physical Exercise and Sport Sciences, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Claudia Cerulli
- Unit of Biochemistry and Molecular Biology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Paolo Sgrò
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Cristina Rossi
- Center for Integrative Oncology, Fondazione Policlinico Universitario A.Gemelli IRCCS, Italy
| | - Stefano Magno
- Center for Integrative Oncology, Fondazione Policlinico Universitario A.Gemelli IRCCS, Italy
| | - Luigi Di Luigi
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Daniela Caporossi
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Attilio Parisi
- Unit of Physical Exercise and Sport Sciences, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy
| | - Ivan Dimauro
- Unit of Biology and Genetics of Movement, Department of Movement, Human and Health Sciences, University of Rome Foro Italico, Rome, Italy.
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AboZaid OAR, Abdel-Maksoud MA, Saleh IA, El-Tayeb MA, El-Sonbaty SM, Shoker FE, Salem MA, Emad AM, Mani S, Deva Magendhra Rao AK, Mamdouh MA, Kotob MH, Aufy M, Kodous AS. Targeting the NF-κB p65/Bcl-2 signaling pathway in hepatic cellular carcinoma using radiation assisted synthesis of zinc nanoparticles coated with naturally isolated gallic acid. Biomed Pharmacother 2024; 172:116274. [PMID: 38364738 DOI: 10.1016/j.biopha.2024.116274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024] Open
Abstract
PURPOSE Oral diethylnitrosamine (DEN) is a known hepatocarcinogen that damages the liver and causes cancer. DEN damages the liver through reactive oxygen species-mediated inflammation and biological process regulation. MATERIALS AND METHODS Gallic acid-coated zinc oxide nanoparticles (Zn-GANPs) were made from zinc oxide (ZnO) synthesized by irradiation dose of 50 kGy utilizing a Co-60 γ-ray source chamber with a dose rate of 0.83 kGy/h and gallic acid from pomegranate peel. UV-visible (UV) spectrophotometry verified Zn-GANP synthesis. TEM, DLS, and FTIR were utilized to investigate ZnO-NPs' characteristics. Rats were orally exposed to DEN for 8 weeks at 20 mg/kg five times per week, followed by intraperitoneal injection of Zn-GANPs at 20 mg/kg for 5 weeks. Using oxidative stress, anti-inflammatory, liver function, histologic, apoptotic, and cell cycle parameters for evaluating Zn-GANPs treatment. RESULTS DEN exposure elevated inflammatory markers (AFP and NF-κB p65), transaminases (AST, ALT), γ-GT, globulin, and total bilirubin, with reduced protein and albumin levels. It also increased MDA levels, oxidative liver cell damage, and Bcl-2, while decreasing caspase-3 and antioxidants like GSH, and CAT. Zn-GANPs significantly mitigated these effects and lowered lipid peroxidation, AST, ALT, and γ-GT levels, significantly increased CAT and GSH levels (p<0.05). Zn-GANPs caused S and G2/M cell cycle arrest and G0/G1 apoptosis. These results were associated with higher caspase-3 levels and lower Bcl-2 and TGF-β1 levels. Zn-GANPs enhance and restore the histology and ultrastructure of the liver in DEN-induced rats. CONCLUSION The data imply that Zn-GANPs may prevent and treat DEN-induced liver damage and carcinogenesis.
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Affiliation(s)
- Omayma A R AboZaid
- Department of Biochemistry, Faculty of Veterinary Medicine, Moshtohor, Benha University, Egypt
| | | | | | - Mohamed A El-Tayeb
- Botany and Microbiology department- College of Science- King Saud University, Saudi Arabia
| | - Sawsan M El-Sonbaty
- Radiation Microbiology Department, National Center for Radiation Research & Technology (NCRRT), Egyptian Atomic-Energy Authority (EAEA), Egypt
| | - Faten E Shoker
- Department of Biochemistry, Faculty of Veterinary Medicine, Moshtohor, Benha University, Egypt
| | - Maha A Salem
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, Egypt
| | - Ayat M Emad
- Pharmacognosy Department, Faculty of Pharmacy, October 6 University, Sixth of October City, Giza 12585, Egypt
| | - Samson Mani
- Department of Research, Rajiv Gandhi Cancer Institute, and Research Centre, Sector 5, Rohini, Delhi 110085, India; Department of Molecular Oncology, Cancer Institute (WIA), 38, Sardar Patel Road, P.O. Box 600036, Chennai, Tamilnadu, India
| | | | - Mohamed A Mamdouh
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, 6th of October City, Giza 12585, Egypt
| | - Mohamed H Kotob
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Vienna, Austria; Department of Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Mohammed Aufy
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Vienna, Austria.
| | - Ahmad S Kodous
- Department of Molecular Oncology, Cancer Institute (WIA), 38, Sardar Patel Road, P.O. Box 600036, Chennai, Tamilnadu, India; Radiation Biology department, National Center for Radiation Research & Technology (NCRRT), Egyptian Atomic-Energy Authority (EAEA), Egypt.
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3
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Varshney S, Lundås M, Siriyappagouder P, Kristensen T, Olsvik PA. Ecotoxicological assessment of Cu-rich acid mine drainage of Sulitjelma mine using zebrafish larvae as an animal model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115796. [PMID: 38061085 DOI: 10.1016/j.ecoenv.2023.115796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024]
Abstract
Acid mine drainage (AMD) is widely acknowledged as a substantial threat to the biodiversity of aquatic ecosystems. The present study aimed to study the toxicological effects of Cu-rich AMD from the Sulitjelma mine in zebrafish larvae. The AMD from this mine was found to contain elevated levels of dissolved metals including Mg (46.7 mg/L), Al (20.2 mg/L), Cu (18.3 mg/L), Fe (19.8 mg/L) and Zn (10.6 mg/L). To investigate the toxicological effects, the study commenced by exposing zebrafish embryos to various concentrations of AMD (ranging from 0.75% to 9%) to determine the median lethal concentration (LC50). Results showed that 96 h LC50 for zebrafish larvae following AMD exposure was 2.86% (95% CI: 2.32-3.52%). Based on acute toxicity results, zebrafish embryos (<2 hpf) were exposed to 0.1% AMD (Cu: 21.7 µg/L) and 0.45% AMD (Cu: 85.7 µg/L) for 96 h to assess development, swimming behaviour, heart rate, respiration and transcriptional responses at 116 hpf. Light microscopy results showed that both 0.1% and 0.45% AMD reduced the body length, eye size and swim bladder area of zebrafish larvae and caused phenotypic abnormalities. Swimming behaviour results showed that 0.45% AMD significantly decreased the locomotion of zebrafish larvae. Heart rate was not affected by AMD exposure. Furthermore, exposure caused a significant increase in oxygen consumption indicating vascular stress in developing larvae. Taken altogether, the study shows that even heavily diluted AMD with environmentally relevant levels of Cu caused toxicity in zebrafish larvae.
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Affiliation(s)
- Shubham Varshney
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | - Mikkel Lundås
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | | | | | - Pål A Olsvik
- Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway.
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Staskiewicz A, Wong E, Tucker M, Farhin R, Park J, Saade R, Alkhazali T, Dang T, Wang X. Cytotoxic and Apoptotic Effects of Pinostilbene and Bortezomib Combination Treatment on Human Multiple Myeloma Cells. Int J Mol Sci 2023; 24:12590. [PMID: 37628771 PMCID: PMC10454535 DOI: 10.3390/ijms241612590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 08/27/2023] Open
Abstract
Multiple myeloma (MM) is a cancer of plasma cells in the bone marrow characterized by bone lesions, hypercalcemia, anemia, and renal failure. Bortezomib (BTZ), a common treatment for MM, is a proteasome inhibitor that induces apoptosis in MM cells. However, high doses of BTZ can be very toxic, signifying a need for a synergistic drug combination to improve treatment efficacy. Resveratrol (RES), a phenolic compound found in grapes, has been shown to inhibit MM cell growth. We sought to identify a synergistic combination of BTZ with a RES derivative and analyze the effects on reducing viability and inducing apoptosis in human MM cells. BTZ as well as RES and its derivatives pinostilbene (PIN) and piceatannol (PIC) decreased MM cell viability in a dose- and time-dependent manner and increased expression of cleaved proapoptotic proteins poly(ADP-ribose) polymerase 1 (PARP1) and caspase-3 in a dose-dependent manner. The combination of 5 nM BTZ and 5 μM PIN was identified to have synergistic cytotoxic effects in MM RPMI 8226 cells. MM RPMI 8226 cells treated with this combination for 24 h showed increased cleaved PARP1 and caspase-3 expression and higher percentages of apoptotic cells versus cells treated with the individual compounds alone. The treatment also showed increased apoptosis induction in MM RPMI 8226 cells co-cultured with human bone marrow stromal HS-5 cells in a Transwell model used to mimic the bone marrow microenvironment. Expression of oxidative stress defense proteins (catalase, thioredoxin, and superoxide dismutase) in RPMI 8226 cells were reduced after 24 h treatment, and cytotoxic effects of the treatment were ameliorated by antioxidant N-acetylcysteine (NAC), suggesting the treatment impacts antioxidant levels in RPMI 8226 cells. Our results suggest that this combination of BTZ and PIN decreases MM cell viability synergistically by inducing apoptosis and oxidative stress in MM cells.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Xinyu Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, Philadelphia College of Osteopathic Medicine–Georgia Campus, Suwanee, GA 30024, USA; (A.S.)
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Sánchez-Meza J, Campos-Valdez M, Domínguez-Rosales JA, Godínez-Rubí JM, Rodríguez-Reyes SC, Martínez-López E, Zúñiga-González GM, Sánchez-Orozco LV. Chronic Administration of Diethylnitrosamine and 2-Acetylaminofluorene Induces Hepatocellular Carcinoma in Wistar Rats. Int J Mol Sci 2023; 24:ijms24098387. [PMID: 37176094 PMCID: PMC10179122 DOI: 10.3390/ijms24098387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/30/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
This study aimed to analyze the biochemical, histological, and gene expression alterations produced in a hepatocarcinogenesis model induced by the chronic administration of diethylnitrosamine (DEN) and 2-acetylaminofluorene (2-AAF) in Wistar rats. Thirteen rats weighing 180 to 200 g were divided into two groups: control and treated. Rats in the treated group were administered an intraperitoneal (i.p.) injection of DEN (50 mg/kg/week) and an intragastric (i.g.) dose of 2-AAF (25 mg/kg/week) for 18 weeks. The treated group had significant increases in their total cholesterol, HDL-C, AST, ALT, ALKP, and GGT levels. Furthermore, a histological analysis showed the loss of normal liver architecture with nuclear pleomorphism in the hepatocytes, atypical mitosis, and fibrous septa that were distributed between the portal triads and collagen fibers through the hepatic sinusoids. The gene expressions of 24 genes related to fibrosis, inflammation, apoptosis, cell growth, angiogenesis, lipid metabolism, and alpha-fetoprotein (AFP) were analyzed; only TGFβ, COL1α1, CYP2E1, CAT, SOD, IL6, TNF-α, and ALB showed significant differences when both groups were compared. Additionally, lung histopathological alterations were found in the treated group, suggesting metastasis. In this model, the chronic administration of DEN+2-AAF induces characteristic alterations of hepatocellular carcinoma in Wistar rats without AFP gene expression changes, highlighting different signatures in hepatocellular carcinoma heterogeneity.
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Affiliation(s)
- Jaime Sánchez-Meza
- Instituto de Enfermedades Crónico Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Marina Campos-Valdez
- Instituto de Enfermedades Crónico Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - José Alfredo Domínguez-Rosales
- Instituto de Enfermedades Crónico Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Juliana Marisol Godínez-Rubí
- Laboratorio de Patología Diagnóstica e Inmunohistoquímica, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Sarai Citlalic Rodríguez-Reyes
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Guadalajara 44340, Mexico
| | - Erika Martínez-López
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Guadalajara 44340, Mexico
| | - Guillermo M Zúñiga-González
- Laboratorio de Mutagénesis, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara 44340, Mexico
| | - Laura Verónica Sánchez-Orozco
- Instituto de Enfermedades Crónico Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
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Xu Y, Wang Z, Wei P, Gairola R, Kelsey KT, Sikora AG, Li G, Gu J. Hypermethylation of nc886 in HPV-positive oropharyngeal cancer and its clinical implications: An epigenome-wide association study. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 30:596-605. [PMID: 36514351 PMCID: PMC9722395 DOI: 10.1016/j.omtn.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
Abstract
The incidence of oropharyngeal squamous cell carcinoma (OPSCC) has increased rapidly in the United States, driven by rising human papillomavirus (HPV) infections in the U.S. population. HPV-positive OPSCC patients have a better prognosis than HPV-negative patients. To gain insights into the unique biology of HPV(+) OPSCC that may contribute to its clinical behaviors, we performed a multi-stage epigenome-wide methylation profiling of leukocyte and tumor DNA in OPSCC patients and compared the methylation levels of CpG sites between HPV(+) and HPV(-) OPSCC patients. We identified and validated a significantly differentially methylated region (DMR) of 1,355 bp encompassing non-coding RNA 886 (nc886) gene and its promoter region. Nc886 is hypermethylated in both leukocytes and tumor DNA of HPV(+) OPSCC patients. Homozygous knockout of nc886 by CRISPR-Cas9 in head and neck cell lines was lethal, but nc886 could be knocked out on the background of protein kinase R (PKR) knockout. Our data suggest that HPV induces nc886 hypermethylation, and nc886 acts as both a viral sensor and a tumor sensor in OPSCC patients and contribute to the better prognosis of HPV(+) OPSCC patients. Nc886 may become a therapeutic target in OPSCC.
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Affiliation(s)
- Yifan Xu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ziqiao Wang
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Peng Wei
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Richa Gairola
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912, USA
| | - Karl T. Kelsey
- Department of Epidemiology, Brown University School of Public Health, Providence, RI 02912, USA
- Pathology and Laboratory Medicine, Brown University School of Public Health, Providence, RI 02912, USA
| | - Andrew G. Sikora
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Guojun Li
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jian Gu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Therapeutic strategies for liver diseases based on redox control systems. Biomed Pharmacother 2022; 156:113764. [DOI: 10.1016/j.biopha.2022.113764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/18/2022] Open
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Galasso M, Dalla Pozza E, Chignola R, Gambino S, Cavallini C, Quaglia FM, Lovato O, Dando I, Malpeli G, Krampera M, Donadelli M, Romanelli MG, Scupoli MT. The rs1001179 SNP and CpG methylation regulate catalase expression in chronic lymphocytic leukemia. Cell Mol Life Sci 2022; 79:521. [PMID: 36112236 PMCID: PMC9481481 DOI: 10.1007/s00018-022-04540-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 08/23/2022] [Accepted: 08/28/2022] [Indexed: 11/26/2022]
Abstract
Chronic lymphocytic leukemia (CLL) is an incurable disease characterized by an extremely variable clinical course. We have recently shown that high catalase (CAT) expression identifies patients with an aggressive clinical course. Elucidating mechanisms regulating CAT expression in CLL is preeminent to understand disease mechanisms and develop strategies for improving its clinical management. In this study, we investigated the role of the CAT promoter rs1001179 single nucleotide polymorphism (SNP) and of the CpG Island II methylation encompassing this SNP in the regulation of CAT expression in CLL. Leukemic cells harboring the rs1001179 SNP T allele exhibited a significantly higher CAT expression compared with cells bearing the CC genotype. CAT promoter harboring the T -but not C- allele was accessible to ETS-1 and GR-β transcription factors. Moreover, CLL cells exhibited lower methylation levels than normal B cells, in line with the higher CAT mRNA and protein expressed by CLL in comparison with normal B cells. Methylation levels at specific CpG sites negatively correlated with CAT levels in CLL cells. Inhibition of methyltransferase activity induced a significant increase in CAT levels, thus functionally validating the role of CpG methylation in regulating CAT expression in CLL. Finally, the CT/TT genotypes were associated with lower methylation and higher CAT levels, suggesting that the rs1001179 T allele and CpG methylation may interact in regulating CAT expression in CLL. This study identifies genetic and epigenetic mechanisms underlying differential expression of CAT, which could be of crucial relevance for the development of therapies targeting redox regulatory pathways in CLL.
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Affiliation(s)
- Marilisa Galasso
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
- Section of Hematology, Department of Medicine, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy
| | - Elisa Dalla Pozza
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Roberto Chignola
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy
| | - Simona Gambino
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Chiara Cavallini
- Research Center LURM, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy
| | - Francesca Maria Quaglia
- Section of Hematology, Department of Medicine, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy
| | - Ornella Lovato
- Research Center LURM, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy
| | - Ilaria Dando
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Giorgio Malpeli
- Department of Surgery, Dentistry, Pediatrics, and Gynecology, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy
| | - Mauro Krampera
- Section of Hematology, Department of Medicine, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy
| | - Massimo Donadelli
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy
| | - Maria G Romanelli
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy.
| | - Maria T Scupoli
- Biology and Genetics Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy.
- Research Center LURM, University of Verona, Policlinico G.B. Rossi, P. L.A. Scuro 10, 37134, Verona, Italy.
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Coêlho MC, Viana Filho JMC, Souza BFD, Valença AMG, Persuhn DC, Oliveira NFPD. Genetic polymorphisms of genes involved in oxidative stress and inflammatory management in oncopediatric patients with chemo-induced oral mucositis. J Appl Oral Sci 2022; 30:e20210490. [PMID: 35319668 PMCID: PMC8963388 DOI: 10.1590/1678-7757-2021-0490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 01/20/2022] [Indexed: 11/21/2022] Open
Abstract
Oral mucositis (OM) is a painful inflammatory oral condition that affects children who undergo chemotherapy. Oxidative stress is a known OM mediator and pro-inflammatory cytokines contribute to the amplification of the immune response.
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Affiliation(s)
- Marina Castro Coêlho
- Universidade Federal da Paraíba - UFPB, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, João Pessoa, Paraíba, Brasil
| | - José Maria Chagas Viana Filho
- Universidade Federal da Paraíba - UFPB, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, João Pessoa, Paraíba, Brasil
| | - Beatriz Fernandes de Souza
- Universidade Federal da Paraíba - UFPB, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, João Pessoa, Paraíba, Brasil
| | - Ana Maria Gondim Valença
- Universidade Federal da Paraíba - UFPB, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, João Pessoa, Paraíba, Brasil
| | - Darlene Camati Persuhn
- Universidade Federal da Paraíba - UFPB, Centro de Ciências Exatas e da Natureza, Departamento de Biologia Molecular, João Pessoa, Paraíba, Brasil
| | - Naila Francis Paulo de Oliveira
- Universidade Federal da Paraíba - UFPB, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, João Pessoa, Paraíba, Brasil.,Universidade Federal da Paraíba - UFPB, Centro de Ciências Exatas e da Natureza, Departamento de Biologia Molecular, João Pessoa, Paraíba, Brasil
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Galasso M, Gambino S, Romanelli MG, Donadelli M, Scupoli MT. Browsing the oldest antioxidant enzyme: catalase and its multiple regulation in cancer. Free Radic Biol Med 2021; 172:264-272. [PMID: 34129927 DOI: 10.1016/j.freeradbiomed.2021.06.010] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/31/2021] [Accepted: 06/11/2021] [Indexed: 01/17/2023]
Abstract
Aerobic organisms possess numerous antioxidant enzymatic families, including catalases, superoxide dismutases (SODs), peroxiredoxins (PRDXs), and glutathione peroxidases (GPXs), which work cooperatively to protect cells from an excess of reactive oxygen species (ROS) derived from endogenous metabolism or external microenvironment. Catalase, as well as other antioxidant enzymes, plays an important dichotomous role in cancer. Therefore, therapies aimed at either reverting the increased or further escalating catalase levels could be effective, depending on the metabolic landscape and on the redox status of cancer cells. This dichotomous role of catalase in cancers highlights the importance to deepen comprehensively the role and the regulation of this crucial antioxidant enzyme. The present review highlights the role of catalase in cancer and provides a comprehensive description of the molecular mechanisms associated with the multiple levels of catalase regulation.
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Affiliation(s)
- Marilisa Galasso
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; Department of Medicine, University of Verona, Verona, Italy
| | - Simona Gambino
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Maria Grazia Romanelli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Massimo Donadelli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
| | - Maria Teresa Scupoli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; Research Center LURM -Interdepartmental Laboratory of Medical Research, University of Verona, Verona, Italy.
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Effects of a Diet Supplemented with Fruit Antioxidants (Mango) on the Expression of Kir6.2 (KCNJ11) in the Hippocampus and Kidney of Diabetic Rats. NEUROPHYSIOLOGY+ 2021. [DOI: 10.1007/s11062-021-09901-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Mizuno G, Munetsuna E, Yamada H, Yamazaki M, Ando Y, Hattori Y, Kageyama I, Teshigawara A, Nouchi Y, Fujii R, Ishikawa H, Suzuki K, Hashimoto S, Ohashi K, Shimono Y. Maternal fructose consumption downregulates hippocampal catalase expression via DNA methylation in rat offspring. Nutr Res 2021; 92:40-48. [PMID: 34274553 DOI: 10.1016/j.nutres.2021.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 02/08/2023]
Abstract
Some studies have demonstrated that excessive fructose consumption negatively impact brain function. Recently, the Developmental Origins of Health and Disease hypothesis - which suggests that maternal nutritional status during gestation and lactation can alter offspring phenotype - has received much attention. In a previous study, we demonstrated that maternal fructose consumption increases levels of lipid peroxides in hippocampi of offspring. The hypothesis in the present study was that maternal fructose intake would affect hippocampal antioxidant enzyme via epigenetic regulation. Upon confirmation of gestation, female rats were assigned to receive either water (control group) or a 20% fructose solution (fructose-fed group). Water or fructose solution were administered to dams from day 1 of gestation to postnatal day 21. Immediately after weaning, hippocampi of offspring were removed for analysis of antioxidant enzyme (Sod1, Sod2, Gpx1, Gpx4, and Cat) messenger RNA transcript levels. Levels of the Cat transcript were significantly lower in the fructose-fed relative to the control group. The Cat protein level was also significantly lower in the fructose-fed relative to the control group as with the messenger RNA transcript levels. Moreover, Cat promoter DNA methylation levels were higher in the fructose-fed group. The present study indicates that maternal fructose consumption may decrease offspring hippocampal Cat transcript levels via altered DNA methylation, which may result in higher levels of oxidative stress due to a decreased ability to neutralize lipid peroxides.
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Affiliation(s)
- Genki Mizuno
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan; Department of Joint Research Laboratory of Clinical Medicine, Fujita Health University Hospital, Toyoake, Aichi 470-1192, Japan
| | - Eiji Munetsuna
- Department of Biochemistry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan.
| | - Hiroya Yamada
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Mirai Yamazaki
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa 761-0123, Japan
| | - Yoshitaka Ando
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan; Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Yuji Hattori
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Itsuki Kageyama
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Atsushi Teshigawara
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Yuki Nouchi
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Ryosuke Fujii
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Hiroaki Ishikawa
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Koji Suzuki
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Shuji Hashimoto
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Koji Ohashi
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Aichi 470-1192, Japan
| | - Yohei Shimono
- Department of Biochemistry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
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Maiti GP, Sinha S, Mahmud H, Boysen J, Mendez MT, Vesely SK, Holter-Chakrabarty J, Kay NE, Ghosh AK. SIRT3 overexpression and epigenetic silencing of catalase regulate ROS accumulation in CLL cells activating AXL signaling axis. Blood Cancer J 2021; 11:93. [PMID: 34001853 PMCID: PMC8129117 DOI: 10.1038/s41408-021-00484-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/23/2021] [Accepted: 04/30/2021] [Indexed: 12/19/2022] Open
Abstract
Mitochondrial metabolism is the key source for abundant ROS in chronic lymphocytic leukemia (CLL) cells. Here, we detected significantly lower superoxide anion (O2−) levels with increased accumulation of hydrogen peroxide (H2O2) in CLL cells vs. normal B-cells. Further analysis indicated that mitochondrial superoxide dismutase (SOD)2, which converts O2− into H2O2 remained deacetylated in CLL cells due to SIRT3 overexpression resulting its constitutive activation. In addition, catalase expression was also reduced in CLL cells suggesting impairment of H2O2-conversion into water and O2 which may cause H2O2-accumulation. Importantly, we identified two CpG-islands in the catalase promoter and discovered that while the distal CpG-island (−3619 to −3765) remained methylated in both normal B-cells and CLL cells, variable degrees of methylation were discernible in the proximal CpG-island (−174 to −332) only in CLL cells. Finally, treatment of CLL cells with a demethylating agent increased catalase mRNA levels. Functionally, ROS accumulation in CLL cells activated the AXL survival axis while upregulated SIRT3, suggesting that CLL cells rapidly remove highly reactive O2− to avoid its cytotoxic effect but maintain increased H2O2-level to promote cell survival. Therefore, abrogation of aberrantly activated cell survival pathways using antioxidants can be an effective intervention in CLL therapy in combination with conventional agents.
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Affiliation(s)
- Guru P Maiti
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Sutapa Sinha
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Hasan Mahmud
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Justin Boysen
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Mariana T Mendez
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Sara K Vesely
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.,Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | | | - Neil E Kay
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Asish K Ghosh
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA. .,Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
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The Effect of SP/NK1R on the Expression and Activity of Catalase and Superoxide Dismutase in Glioblastoma Cancer Cells. Biochem Res Int 2021; 2021:6620708. [PMID: 33976938 PMCID: PMC8084669 DOI: 10.1155/2021/6620708] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/05/2021] [Accepted: 04/11/2021] [Indexed: 01/29/2023] Open
Abstract
Introduction Glioblastoma is the most malignant brain tumor with different therapeutic protocols, including surgery, radiotherapy, and chemotherapy. Substance P (SP), a peptide released by sensory nerves, increases cellular excitability by activating the neurokinin-1 receptor (NK1R) in several human tumor cells. Aprepitant is a potent and long-lasting NK1R antagonist, considered a new agent for inhibiting proliferation and induction of apoptosis in malignant cells. This study aimed to evaluate the effects of the SP/NK1R system on the expression and activity of catalase and superoxide dismutase (SOD) in the glioblastoma U87 cancer cell line. Methods Cytotoxicity was measured by the resazurin test, 24 hours after treatment, with increasing aprepitant concentrations. The production of reactive oxygen species (ROS) was also measured 24 hours after treatment with SP and aprepitant. Enzymes activity of catalase and SOD was measured using the corresponding assay kits. Real-time PCR also measured their expression. Results Aprepitant significantly reduced the viability of U87 cells in a concentration-dependent manner. ROS production was significantly reduced, and the activity of catalase and SOD increased after treatment with aprepitant. The expression of catalase and SOD enzymes also increased significantly in the presence of aprepitant. Conclusion The present study showed that aprepitant inhibited SP's oxidizing effects via inducing the antioxidant effects of catalase and SOD in the U87 cell line. Therefore, this drug might be introduced as a potential candidate for controlling glioblastoma cancer in animal models and clinical trials.
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Liedtke M, Völkner C, Jürs AV, Peter F, Rabenstein M, Hermann A, Frech MJ. Pathophysiological In Vitro Profile of Neuronal Differentiated Cells Derived from Niemann-Pick Disease Type C2 Patient-Specific iPSCs Carrying the NPC2 Mutations c.58G>T/c.140G>T. Int J Mol Sci 2021; 22:ijms22084009. [PMID: 33924575 PMCID: PMC8069078 DOI: 10.3390/ijms22084009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 12/14/2022] Open
Abstract
Niemann-Pick type C2 (NP-C2) disease is a rare hereditary disease caused by mutations in the NPC2 gene. NPC2 is a small, soluble protein consisting of 151 amino acids, primarily expressed in late endosomes and lysosomes (LE/LY). Together with NPC1, a transmembrane protein found in these organelles, NPC2 accomplishes the exclusion of cholesterol; thus, both proteins are essential to maintain cellular cholesterol homeostasis. Consequently, mutations in the NPC2 or NPC1 gene result in pathophysiological accumulation of cholesterol and sphingolipids in LE/LY. The vast majority of Niemann-Pick type C disease patients, 95%, suffer from a mutation of NPC1, and only 5% display a mutation of NPC2. The biochemical phenotype of NP-C1 and NP-C2 appears to be indistinguishable, and both diseases share several commonalities in the clinical manifestation. Studies of the pathological mechanisms underlying NP-C2 are mostly based on NP-C2 animal models and NP-C2 patient-derived fibroblasts. Recently, we established induced pluripotent stem cells (iPSCs), derived from a donor carrying the NPC2 mutations c.58G>T/c.140G>T. Here, we present a profile of pathophysiological in vitro features, shared by NP-C1 and NP-C2, of neural differentiated cells obtained from the patient specific iPSCs. Profiling comprised a determination of the NPC2 protein level, detection of cholesterol accumulation by filipin staining, analysis of oxidative stress, and determination of autophagy. As expected, the NPC2-deficient cells displayed a significantly reduced amount of NPC2 protein, and, accordingly, we observed a significantly increased amount of cholesterol. Most notably, NPC2-deficient cells displayed only a slight increase of reactive oxygen species (ROS), suggesting that they do not suffer from oxidative stress and express catalase at a high level. As a site note, comparable NPC1-deficient cells suffer from a lack of catalase and display an increased level of ROS. In summary, this cell line provides a valuable tool to gain deeper understanding, not only of the pathogenic mechanism of NP-C2, but also of NP-C1.
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Affiliation(s)
- Maik Liedtke
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
| | - Christin Völkner
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
| | - Alexandra V. Jürs
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
| | - Franziska Peter
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
| | - Michael Rabenstein
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
| | - Andreas Hermann
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
- Center for Transdisciplinary Neurosciences Rostock (CTNR), University Medical Center Rostock, 18147 Rostock, Germany
- German Center for Neurodegenerative Diseases (DZNE) Rostock/Greifswald, 18147 Rostock, Germany
| | - Moritz J. Frech
- Translational Neurodegeneration Section “Albrecht Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany; (M.L.); (C.V.); (A.V.J.); (F.P.); (M.R.); (A.H.)
- Center for Transdisciplinary Neurosciences Rostock (CTNR), University Medical Center Rostock, 18147 Rostock, Germany
- Correspondence:
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Catalase immunoexpression in colorectal lesions. GASTROENTEROLOGY REVIEW 2020; 15:330-337. [PMID: 33777273 PMCID: PMC7988832 DOI: 10.5114/pg.2020.101562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 11/26/2019] [Indexed: 11/17/2022]
Abstract
Introduction It is generally accepted that the gastrointestinal tract, and especially the colon, is constantly exposed to reactive oxygen species (ROS) that may be responsible for the appearance of genetic mutations. To keep a steady-state control over ROS production-detoxification, organisms have evolved a defensive system. Nevertheless, many reports have described decreased level of antioxidant enzymes, especially catalase (CAT), in cancer tissues. Aim In this work we try to assess the immunohistochemical expression of CAT protein in colorectal adenoma and adenocarcinoma samples. Material and methods This study was performed on resected specimens obtained from 122 patients who had undergone surgical resection for colorectal cancer, and from 120 patients who had undergone colonoscopy. Paraffin- embedded, 4 µm-thick tissue sections were stained for rabbit polyclonal anti CAT antibody obtained from GeneTex (cat. no. GTX110704). Results In adenoma strong immunoexpression was detected mainly in infiltrating mononuclear cells within lamina propria. High expression of CAT was significantly associated with grade of dysplasia (high grade vs. low grade, p = 0.037). In adenocarcinoma samples, the high level of CAT immunoexpression was significantly correlated with histological grade of tumour (G1 vs. G2 vs. G3, p = 0.001) and depth of invasion (T1 vs. T2 vs. T3 vs. T4, p = 0.003). Conclusions Development of colorectal cancer is associated with increased expression of CAT in the stage of adenoma and decreased expression in the stage of adenocarcinoma.
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Jürs AV, Völkner C, Liedtke M, Huth K, Lukas J, Hermann A, Frech MJ. Oxidative Stress and Alterations in the Antioxidative Defense System in Neuronal Cells Derived from NPC1 Patient-Specific Induced Pluripotent Stem Cells. Int J Mol Sci 2020; 21:ijms21207667. [PMID: 33081384 PMCID: PMC7593914 DOI: 10.3390/ijms21207667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 01/10/2023] Open
Abstract
Oxidative stress (OS) represents a state of an imbalanced amount of reactive oxygen species (ROS) and/or a hampered efficacy of the antioxidative defense system. Cells of the central nervous system are particularly sensitive to OS, as they have a massive need of oxygen to maintain proper function. Consequently, OS represents a common pathophysiological hallmark of neurodegenerative diseases and is discussed to contribute to the neurodegeneration observed amongst others in Alzheimer’s disease and Parkinson’s disease. In this context, accumulating evidence suggests that OS is involved in the pathophysiology of Niemann-Pick type C1 disease (NPC1). NPC1, a rare hereditary neurodegenerative disease, belongs to the family of lysosomal storage disorders. A major hallmark of the disease is the accumulation of cholesterol and other glycosphingolipids in lysosomes. Several studies describe OS both in murine in vivo and in vitro NPC1 models. However, studies based on human cells are limited to NPC1 patient-derived fibroblasts. Thus, we analyzed OS in a human neuronal model based on NPC1 patient-specific induced pluripotent stem cells (iPSCs). Higher ROS levels, as determined by DCF (dichlorodihydrofluorescein) fluorescence, indicated oxidative stress in all NPC1-deficient cell lines. This finding was further supported by reduced superoxide dismutase (SOD) activity. The analysis of mRNA and protein levels of SOD1 and SOD2 did not reveal any difference between control cells and NPC1-deficient cells. Interestingly, we observed a striking decrease in catalase mRNA and protein levels in all NPC1-deficient cell lines. As catalase is a key enzyme of the cellular antioxidative defense system, we concluded that the lack of catalase contributes to the elevated ROS levels observed in NPC1-deficient cells. Thus, a restitution of a physiological catalase level may pose an intervention strategy to rescue NPC1-deficient cells from the repercussions of oxidative stress contributing to the neurodegeneration observed in NPC1.
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Affiliation(s)
- Alexandra V. Jürs
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
| | - Christin Völkner
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
| | - Maik Liedtke
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
| | - Katharina Huth
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
| | - Jan Lukas
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
- Center for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Center, University of Rostock, 18147 Rostock, Germany
| | - Andreas Hermann
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
- Center for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Center, University of Rostock, 18147 Rostock, Germany
- German Center for Neurodegenerative Diseases (DZNE) Rostock/Greifswald, 18147 Rostock, Germany
| | - Moritz J. Frech
- Translational Neurodegeneration Section Albrecht Kossel, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany; (A.V.J.); (C.V.); (M.L.); (K.H.); (J.L.); (A.H.)
- Center for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Center, University of Rostock, 18147 Rostock, Germany
- Correspondence:
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Coêlho MC, Queiroz IC, Viana JMC, de Aquino SG, Persuhn DC, de Oliveira NFP. miR-9-1 gene methylation and DNMT3B (rs2424913) polymorphism may contribute to periodontitis. J Appl Oral Sci 2020; 28:e20190583. [PMID: 32267380 PMCID: PMC7137733 DOI: 10.1590/1678-7757-2019-0583] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/11/2019] [Accepted: 11/27/2019] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Genetic and epigenetic changes have been associated with periodontitis in various genes; however, little is known about genes involved in epigenetic mechanisms and in oxidative stress. OBJECTIVE This study aims to investigate the association of polymorphisms C677T in MTHFR (rs1801133) and -149C→T in DNMT3B (rs2424913), as well as the methylation profiles of MTHFR, miR-9-1, miR-9-3, SOD1, and CAT with periodontitis. The association between polymorphisms and DNA methylation profiles was also analyzed. METHODOLOGY The population studied was composed of 100 nonsmokers of both sexes, divided into healthy and periodontitis groups. Genomic DNA was extracted from the epithelial buccal cells, which were collected through a mouthwash. Polymorphism analysis was performed through polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), while methylation-specific PCR (MSP) or combined bisulfite restriction analysis techniques were applied for methylation analysis. RESULTS For DNMT3B, the T allele and the TT genotype were detected more frequently in the periodontitis group, as well as the methylated profile on the miR-9-1 promoter region. There was also a tendency towards promoter region methylation on the CAT sequence of individuals with periodontal disease. CONCLUSION The polymorphism -149C→T in DNMT3B (rs2424913) and the methylated profile of the miR-9-1 promoter region are associated with periodontitis.
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Affiliation(s)
- Marina Castro Coêlho
- Universidade Federal da ParaíbaCentro de Ciências da SaúdePrograma de Pós Graduação em OdontologiaJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências da Saúde, Programa de Pós Graduação em Odontologia, João Pessoa, Paraíba, Brasil.
| | - Ingrid Costa Queiroz
- Universidade Federal da ParaíbaCentro de Ciências da SaúdeJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências da Saúde, João Pessoa, Paraíba, Brasil.
| | - José Maria Chagas Viana
- Universidade Federal da ParaíbaCentro de Ciências da SaúdePrograma de Pós Graduação em OdontologiaJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências da Saúde, Programa de Pós Graduação em Odontologia, João Pessoa, Paraíba, Brasil.
| | - Sabrina Garcia de Aquino
- Universidade Federal da ParaíbaCentro de Ciências da SaúdePrograma de Pós Graduação em OdontologiaJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências da Saúde, Programa de Pós Graduação em Odontologia, João Pessoa, Paraíba, Brasil.
- Universidade Federal da ParaíbaCentro de Ciências da SaúdeDepartamento de Odontologia Clínica e SocialJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências da Saúde, Departamento de Odontologia Clínica e Social, João Pessoa, Paraíba, Brasil.
| | - Darlene Camati Persuhn
- Universidade Federal da ParaíbaCentro de Ciências Exatas e da NaturezaDepartamento de Biologia MolecularJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências Exatas e da Natureza, Departamento de Biologia Molecular, João Pessoa, Paraíba, Brasil.
| | - Naila Francis Paulo de Oliveira
- Universidade Federal da ParaíbaCentro de Ciências da SaúdePrograma de Pós Graduação em OdontologiaJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências da Saúde, Programa de Pós Graduação em Odontologia, João Pessoa, Paraíba, Brasil.
- Universidade Federal da ParaíbaCentro de Ciências Exatas e da NaturezaDepartamento de Biologia MolecularJoão PessoaParaíbaBrasilUniversidade Federal da Paraíba, Centro de Ciências Exatas e da Natureza, Departamento de Biologia Molecular, João Pessoa, Paraíba, Brasil.
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Avian Stress-Related Transcriptome and Selenotranscriptome: Role during Exposure to Heavy Metals and Heat Stress. Antioxidants (Basel) 2019; 8:antiox8070216. [PMID: 31295914 PMCID: PMC6680911 DOI: 10.3390/antiox8070216] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/02/2019] [Accepted: 07/04/2019] [Indexed: 12/15/2022] Open
Abstract
Selenium, through incorporation into selenoproteins, is one of the key elements of the antioxidant system. Over the past few years there has been increased interest in exploring those molecular mechanisms in chicken, responsible for the development of this protection system. In more detail, Cd/Pb poisoning and heat stress increase oxidation, mRNA levels of inflammatory proteins, and apoptotic proteins. Selenium seems to enhance the antioxidant status and alleviates these effects via upregulation of antioxidant proteins and other molecular effects. In this review, we analyze avian transcriptome key elements with particular emphasis on interactions with heavy metals and on relation to heat stress.
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Ko E, Kim JS, Bae JW, Kim J, Park SG, Jung G. SERPINA3 is a key modulator of HNRNP-K transcriptional activity against oxidative stress in HCC. Redox Biol 2019; 24:101217. [PMID: 31121493 PMCID: PMC6529774 DOI: 10.1016/j.redox.2019.101217] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/26/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023] Open
Abstract
Most studies about serpin peptidase inhibitor, clade A member 3 (SERPINA3) has been limited to its inhibitory functions and mechanisms. Herein, we report a novel role of SERPINA3 in transcriptional regulation of HCC progression-related genes. Among 19 selected genes through HCC cell isolation system based on telomere length, microarray analyses, and cell-based studies, SERPINA3 was the strongest determinant of increases in telomere length, HCC cell proliferation, survival, migration, and invasion. We also found that SERPINA3 strongly interacted with heterogeneous nuclear ribonucleoprotein K (HNRNP-K) under H2O2 exposure, and the oxidation-elicited SERPINA3-HNRNP-K complex enhanced the promoter activities and transcript levels of a telomere-relating gene (POT1) and HCC-promoting genes (UHRF1 and HIST2H2BE). Intriguingly, the inhibition of SERPINA3 oxidation rendered the transcriptional activity of the SERPINA3-HNRNP-K complex suppressed. Moreover, the co-immunoprecipitated HNRNP-K with SERPINA3 quantitatively correlated with not only the level of SERPINA3 oxidation but also the level of POT1, UHRF1, and HIST2H2BE transcripts and telomere length in HCC tissues. Therefore, the upregulated transcriptional activity of HNRNP-K mediated by SERPINA3 promotes HCC cell survival and proliferation and could be an indicator of poor prognosis for HCC patients. SERPINA3-HNRNP-K complex promotes HCC survival and proliferation. Oxidation of SERPINA3 accentuated the role of complex on target regulatory DNA. Blockade of the SERPINA3-HNRNP-K complex could be valuable in HCC therapy.
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Affiliation(s)
- Eunkyong Ko
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jong-Seo Kim
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea; Center for RNA Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Jong Woo Bae
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea; Center for RNA Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Jeesoo Kim
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea; Center for RNA Research, Institute of Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Sung-Gyoo Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Guhung Jung
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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Expression of Antioxidant Enzymes in Patients with Uterine Polyp, Myoma, Hyperplasia, and Adenocarcinoma. Antioxidants (Basel) 2019; 8:antiox8040097. [PMID: 30978928 PMCID: PMC6523488 DOI: 10.3390/antiox8040097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/04/2019] [Indexed: 11/17/2022] Open
Abstract
We previously found that compared to patients with benign uterine diseases (polyps, myomas), patients with premalignant (hyperplasia simplex and complex) and malignant (adenocarcinoma) lesions had enhanced lipid peroxidation and altered uterine antioxidant enzyme (AOE) activities. To further elucidate the mechanism of the observed changes, we examined protein and mRNA levels of copper-zinc superoxide dismutase (CuZnSOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and transcription factor Nrf2. We also examined correlations of AOE expression with AOE activity, lipid hydroperoxides (LOOH) level, and level of Nrf2. Our results showed decreased CuZnSOD, CAT, and Nrf2 levels, and increased GPx and GR levels in hyperplasias, while in patients with adenocarcinoma, the level of CAT was decreased and GR was increased, compared to benign groups. Similar changes in mRNA levels were also detected, indicating predominantly translational control of the AOE expression. The positive correlation of enzyme expression/activity was recorded for CuZnSOD, GPx, and GR, but only among groups with benign diseases. Only GR and GPx expressions were positively correlated with LOOH. Nrf2 protein was positively correlated with mRNA levels of CuZnSOD and GR. Observed results indicate involvement of diverse redox mechanisms in etiopathogenesis of different gynecological diseases, and may improve redox-based approaches in current clinical practice.
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22
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Obesity: Pathophysiology, monosodium glutamate-induced model and anti-obesity medicinal plants. Biomed Pharmacother 2019; 111:503-516. [DOI: 10.1016/j.biopha.2018.12.108] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/13/2018] [Accepted: 12/23/2018] [Indexed: 02/08/2023] Open
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23
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Effect of Oxidative Stress on the Estrogen-NOS-NO-K Ca Channel Pathway in Uteroplacental Dysfunction: Its Implication in Pregnancy Complications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9194269. [PMID: 30881600 PMCID: PMC6387699 DOI: 10.1155/2019/9194269] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/19/2018] [Accepted: 01/14/2019] [Indexed: 12/27/2022]
Abstract
During pregnancy, the adaptive changes in uterine circulation and the formation of the placenta are essential for the growth of the fetus and the well-being of the mother. The steroid hormone estrogen plays a pivotal role in this adaptive process. An insufficient blood supply to the placenta due to uteroplacental dysfunction has been associated with pregnancy complications including preeclampsia and intrauterine fetal growth restriction (IUGR). Oxidative stress is caused by an imbalance between free radical formation and antioxidant defense. Pregnancy itself presents a mild oxidative stress, which is exaggerated in pregnancy complications. Increasing evidence indicates that oxidative stress plays an important role in the maladaptation of uteroplacental circulation partly by impairing estrogen signaling pathways. This review is aimed at providing both an overview of our current understanding of regulation of the estrogen-NOS-NO-KCa pathway by reactive oxygen species (ROS) in uteroplacental tissues and a link between oxidative stress and uteroplacental dysfunction in pregnancy complications. A better understanding of the mechanisms will facilitate the development of novel and effective therapeutic interventions.
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24
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The association of CAT-262C/T polymorphism with catalase activity and treatment response in juvenile idiopathic arthritis. Rheumatol Int 2019; 39:551-559. [PMID: 30680511 DOI: 10.1007/s00296-019-04246-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/21/2019] [Indexed: 12/24/2022]
Abstract
Oxidative stress is believed to be of great importance for both the etiology and the persistence of juvenile idiopathic arthritis (JIA). The aim of this study was to investigate the association of -262C/T polymorphism of the catalase (CAT) gene with JIA, as well as to evaluate whether this polymorphism can influence plasma CAT activity and outcome in JIA patients treated with etanercept. A total of 154 subjects (60 JIA patients and 94 healthy volunteers) were screened for CAT-262C/T gene polymorphism using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Plasma CAT activity was determined using the spectrophotometric method according to Goth, prior to and 12 months after anti-TNF (etanercept) therapy. Clinical outcome was assessed using the JIA ACR (American College of Rheumatology) response criteria. The genotype and allele frequency distributions of CAT-262C/T polymorphism in the patients were significantly different from those of the controls (p = 0.014, p = 0.006). The TT genotype (polymorphic homozygous) was associated with a 4.36-fold higher likelihood of having JIA (95% CI 1.545-12.323, p = 0.005) as compared to the CC genotype (wild-type). At month 12 of treatment, JIA patients, carriers of the CC genotype, showed significantly higher plasma CAT activity (p = 0.004) and achieved the JIA ACR 70 response more often (p = 0.003) than the patients, carriers of the CT/TT genotype. This is the first study implying the possible association of CAT-262C/T polymorphism with JIA. The results suggest the potential protective effect of the CC genotype, with regard to CAT activity and treatment outcome.
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25
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Esmaeili B, Mansouri P, Doustimotlagh AH, Izad M. Redox imbalance and IL-17 responses in memory CD4 + T cells from patients with psoriasis. Scand J Immunol 2018; 89:e12730. [PMID: 30375024 DOI: 10.1111/sji.12730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 01/21/2023]
Abstract
All stages of the inflammatory process involved in T cell-mediated chronic skin disorders like psoriasis are affected by redox imbalance. On the other hand, Th17 cells have a critical role in the pathogenesis of psoriasis. In this study, we evaluated redox status in memory CD4 + T cells and plasma of patients with psoriasis and its correlation with IL-17 response. To this end, memory T cells were isolated from 10 patients with psoriasis and 10 controls. Intracellular Glutathione (GSH), reactive oxygen species (ROS) and superoxide as well as IL-17 were measured using flow cytometry. Plasma total anti-oxidant capacity (TAC) was quantified by ferric reducing ability of plasma (FRAP) assay. The expression of catalase (CAT), superoxide dismutase 1(SOD1), superoxide dismutase 2 (SOD2), nuclear factor, erythroid 2 like 2 (NFE2L2) and cytochrome b-245 beta chain (CYBB) genes were analysed using real-time PCR. Our results showed an increased intracellular ROS production in memory CD4 + T cells of patients compared to controls, (P = 0.04). Furthermore, a significant decrease in expression of catalase gene was found in patients, (P = 0.02). However, no significant differences were observed for intracellular GSH, IL-17 and TAC levels between patients and controls. Also, no correlation was seen between the intracellular IL-17 level and intracellular ROS, GSH and catalase gene expression levels. Collectively, we found an increased ROS production in stimulated memory T cells of patients that could be due to reduced expression of catalase gene. However, it seems that these redox abnormalities have no relationship with IL-17 response in memory T cells.
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Affiliation(s)
- Behnaz Esmaeili
- Immunology Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran
| | - Parvin Mansouri
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Maryam Izad
- Immunology Department, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,MS Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.,Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran
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26
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Bašić J, Despotović M, Jevtović - Stoimenov T, Cvetković T, Živanović M, Živković M, Pavlović D. THE INFLUENCE OF CAT - 262 C/T POLYMORPHISM ON CATALASE ACTIVITY IN PATIENTS WITH ISCHEMIC STROKE. ACTA MEDICA MEDIANAE 2018. [DOI: 10.5633/amm.2018.0415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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27
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Ko E, Seo HW, Jung ES, Ju S, Kim BH, Cho H, Kim YJ, Park YM, Kim JS, Jung G. PI3Kδ Is a Therapeutic Target in Hepatocellular Carcinoma. Hepatology 2018; 68:2285-2300. [PMID: 30300952 DOI: 10.1002/hep.30307] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/02/2018] [Indexed: 12/15/2022]
Abstract
Class I phosphoinositide 3-kinase (PI3K) signaling is a major pathway in human cancer development and progression. Among the four PI3K isoforms, PI3Kα and PI3Kβ are ubiquitously expressed, whereas PI3Kγ and PI3Kδ are found primarily in leukocytes. Until now, PI3K targeting in solid tumors has focused on inhibiting PI3Kα-mediated and PI3Kβ-mediated cancer cell-intrinsic PI3K activity. The role of PI3Kδ in solid tumors is unknown. Here, we evaluated the effects of PI3Kδ using established hepatocellular carcinoma (HCC) cells, malignant hepatocytes derived from patients with advanced HCC, murine models, and HCC tissues using RNA sequencing, quantitative PCR, immunoblotting, immunofluorescence, microarray, liquid chromatography-tandem mass spectrometry, and kinase assay. We established a chemical carcinogenesis model of liver malignancy that reflects the malignant phenotype and the in vivo environment of advanced HCC. In this in vivo advanced HCC-mimic system using HCC cells treated with hydrogen peroxide (H2 O2 ), we showed that H2 O2 selectively increases PI3Kδ activity while decreasing that of other class I PI3Ks. Blocking PI3Kδ activity with a PI3Kδ inhibitor or small interfering RNA-mediated PI3Kδ gene silencing inhibited HCC-cell proliferation and dampened key features of malignant HCC, including the up-regulation of telomerase reverse transcriptase (TERT). Mechanistically, H2 O2 induced oxidative modification of the serpin peptidase inhibitor, serpin peptidase inhibitor (SERPINA3), blocking its ubiquitin-dependent degradation and enhancing its activity as a transcriptional activator of PI3Kδ and TERT. High PI3Kδ levels in HCC were found to correlate with poor survival rates, with human advanced HCC showing positive correlations between the protein levels of oxidized SERPINA3, PI3Kδ, and TERT. Thus, PI3Kδ plays significant roles in malignant liver tumors. Conclusion: Our data identify PI3Kδ inhibition, recently approved for the treatment of human B-cell malignancies, as a potential treatment for HCC.
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Affiliation(s)
- Eunkyong Ko
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
| | - Hyun-Wook Seo
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
| | - Eun Sun Jung
- Department of Pathology, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, South Korea
| | - Soomi Ju
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea.,Center for RNA Research, Institute of Basic Science (IBS), Seoul, South Korea
| | - Baek-Hui Kim
- Department of Pathology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Hyeki Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Young Min Park
- Hepatology Center and Laboratory of Hepatocarcinogenesis, Bundang Jesaeng General Hospital, Kyungkido, South Korea
| | - Jong-Seo Kim
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea.,Center for RNA Research, Institute of Basic Science (IBS), Seoul, South Korea
| | - Guhung Jung
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
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28
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Alomari E, Ronda L, Bruno S, Paredi G, Marchetti M, Bettati S, Olivari D, Fumagalli F, Novelli D, Ristagno G, Latini R, Cooper CE, Reeder BJ, Mozzarelli A. High- and low-affinity PEGylated hemoglobin-based oxygen carriers: Differential oxidative stress in a Guinea pig transfusion model. Free Radic Biol Med 2018; 124:299-310. [PMID: 29920341 PMCID: PMC6191936 DOI: 10.1016/j.freeradbiomed.2018.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 12/26/2022]
Abstract
Hemoglobin-based oxygen carriers (HBOCs) are an investigational replacement for blood transfusions and are known to cause oxidative damage to tissues. To investigate the correlation between their oxygen binding properties and these detrimental effects, we investigated two PEGylated HBOCs endowed with different oxygen binding properties - but otherwise chemically identical - in a Guinea pig transfusion model. Plasma samples were analyzed for biochemical markers of inflammation, tissue damage and organ dysfunction; proteins and lipids of heart and kidney extracts were analyzed for markers of oxidative damage. Overall, both HBOCs produced higher oxidative stress in comparison to an auto-transfusion control group. Particularly, tissue 4-hydroxynonenal adducts, tissue malondialdehyde adducts and plasma 8-oxo-2'-deoxyguanosine exhibited significantly higher levels in comparison with the control group. For malondialdehyde adducts, a higher level in the renal tissue was observed for animals treated with the high-affinity HBOC, hinting at a correlation between the HBOCs oxygen binding properties and the oxidative stress they produce. Moreover, we found that the high-affinity HBOC produced greater tissue oxygenation in comparison with the low affinity one, possibly correlating with the higher oxidative stress it induced.
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Affiliation(s)
- Esra'a Alomari
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Luca Ronda
- Department of Medicine and Surgery, University of Parma, Parma, Italy; Biopharmanet-TEC, University of Parma, Parma, Italy
| | - Stefano Bruno
- Department of Food and Drug, University of Parma, Parma, Italy; Biopharmanet-TEC, University of Parma, Parma, Italy.
| | - Gianluca Paredi
- Department of Food and Drug, University of Parma, Parma, Italy; Interdepartmental Center SITEIA.PARMA, University of Parma, Parma 43121, Italy
| | - Marialaura Marchetti
- Department of Medicine and Surgery, University of Parma, Parma, Italy; Biopharmanet-TEC, University of Parma, Parma, Italy
| | - Stefano Bettati
- Department of Medicine and Surgery, University of Parma, Parma, Italy; Biopharmanet-TEC, University of Parma, Parma, Italy; Istituto Nazionale Biostrutture e Biosistemi, Rome, Italy
| | - Davide Olivari
- Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | | | - Deborah Novelli
- Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | | | - Roberto Latini
- Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - Chris E Cooper
- School of Biological Sciences, University of Essex, Colchester, United Kingdom
| | - Brandon J Reeder
- School of Biological Sciences, University of Essex, Colchester, United Kingdom
| | - Andrea Mozzarelli
- Department of Food and Drug, University of Parma, Parma, Italy; Biopharmanet-TEC, University of Parma, Parma, Italy; Istituto Nazionale Biostrutture e Biosistemi, Rome, Italy; Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Pisa, Italy
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29
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Koziorowska-Gilun M, Gilun P, Mietelska K, Kordan W. Determination of the activity and relative abundance of mRNA for antioxidant enzymes in stallion testicular and epididymal tissues: A comparison between two breeding seasons. Anim Reprod Sci 2018; 196:230-238. [PMID: 30115520 DOI: 10.1016/j.anireprosci.2018.08.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/16/2018] [Accepted: 08/10/2018] [Indexed: 01/23/2023]
Abstract
The key prerequisite for successful insemination is sperm characterized to have positive values for morphological and biological variables which are determined by, among others, effective antioxidant protection during the lifespan of sperm cells. This study evaluated the activity and relative abundance of mRNA for antioxidant enzymes in stallion testicular and epididymal tissues during breeding (n = 5) and non-breeding (n = 5) seasons. The activity of superoxide dismutase (SOD) was greater (P < 0.05) during the breeding season, in particular in the testes and the caput epididymis, and SOD1 was the predominant isoform of the enzyme. The expression of the SOD3 gene was markedly less in the analyzed tissues, which indicates that this enzyme contributes to the antioxidant protection of the stallion reproductive tract. The activity of catalase (CAT) was less (P < 0.05) in the testes during both seasons while its relative abundances only during the breeding season. The greatest CAT activity was noted in the cauda epididymis during the breeding season. The activity of glutathione peroxidases (GPx) was greater (P < 0.05) in the testes than in other tissues and 10-fold greater during the breeding season. Similarly, relative abundance of GPx5 mRNA was greater (P < 0.05) in the caput epididymis than in the remaining tissues during both seasons. This study demonstrated that season has an ambiguous influence on the antioxidant defense system in stallion reproductive tissues. Seasonal differences in the present study, however, indicate that the reproductive system of stallions adapts well to environmental seasonal changes.
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Affiliation(s)
- Magdalena Koziorowska-Gilun
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-718 Olsztyn, Poland.
| | - Przemysław Gilun
- Department of Local Physiological Regulations, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Bydgoska 7, 10-243 Olsztyn, Poland
| | - Katarzyna Mietelska
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-718 Olsztyn, Poland
| | - Władysław Kordan
- Department of Animal Biochemistry and Biotechnology, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-718 Olsztyn, Poland
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30
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Ducsay CA, Goyal R, Pearce WJ, Wilson S, Hu XQ, Zhang L. Gestational Hypoxia and Developmental Plasticity. Physiol Rev 2018; 98:1241-1334. [PMID: 29717932 PMCID: PMC6088145 DOI: 10.1152/physrev.00043.2017] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Hypoxia is one of the most common and severe challenges to the maintenance of homeostasis. Oxygen sensing is a property of all tissues, and the response to hypoxia is multidimensional involving complicated intracellular networks concerned with the transduction of hypoxia-induced responses. Of all the stresses to which the fetus and newborn infant are subjected, perhaps the most important and clinically relevant is that of hypoxia. Hypoxia during gestation impacts both the mother and fetal development through interactions with an individual's genetic traits acquired over multiple generations by natural selection and changes in gene expression patterns by altering the epigenetic code. Changes in the epigenome determine "genomic plasticity," i.e., the ability of genes to be differentially expressed according to environmental cues. The genomic plasticity defined by epigenomic mechanisms including DNA methylation, histone modifications, and noncoding RNAs during development is the mechanistic substrate for phenotypic programming that determines physiological response and risk for healthy or deleterious outcomes. This review explores the impact of gestational hypoxia on maternal health and fetal development, and epigenetic mechanisms of developmental plasticity with emphasis on the uteroplacental circulation, heart development, cerebral circulation, pulmonary development, and the hypothalamic-pituitary-adrenal axis and adipose tissue. The complex molecular and epigenetic interactions that may impact an individual's physiology and developmental programming of health and disease later in life are discussed.
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Affiliation(s)
- Charles A. Ducsay
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Ravi Goyal
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - William J. Pearce
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Sean Wilson
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Xiang-Qun Hu
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Lubo Zhang
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
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31
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Lespay-Rebolledo C, Perez-Lobos R, Tapia-Bustos A, Vio V, Morales P, Herrera-Marschitz M. Regionally Impaired Redox Homeostasis in the Brain of Rats Subjected to Global Perinatal Asphyxia: Sustained Effect up to 14 Postnatal Days. Neurotox Res 2018; 34:660-676. [PMID: 29959728 DOI: 10.1007/s12640-018-9928-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/12/2018] [Accepted: 06/14/2018] [Indexed: 12/30/2022]
Abstract
The present report evaluates the effect of global perinatal asphyxia on several parameters of oxidative stress and cell viability in rat brain tissue sampled at an extended neonatal period up to 14 days, a period characterised by intensive neuritogenesis, synaptogenesis, synaptic consolidation, pruning and delayed cell death. Perinatal asphyxia was induced by immersing foetus-containing uterine horns removed by a caesarean section from on term rat dams into a water bath at 37 °C for 21 min. Asphyxia-exposed and sibling caesarean-delivered foetuses were manually resucitated and nurtured by surrogate dams for 1 to 14 postnatal (P) days. Brain samples (mesencephalon, telencephalon and hippocampus) were assayed for glutathione (reduced and oxidated levels; spectrophotometry), tissue reducing capacity (potassium ferricyanide reducing assay, FRAP), catalase (the key enzyme protecting against oxidative stress and reactive oxygen species, Western blots and ELISA) and cleaved caspase-3 (the key executioner of apoptosis, Western blots) levels. It was found that global PA produced a regionally specific and sustained increase in GSSG/GSH ratio, a regionally specific decrease in tissue reducing capacity and a regionally and time specific decrease of catalase activity and increase of cleaved caspase-3 levels. The present study provides evidence for regionally impaired redox homeostasis in the brain of rats subjected to global PA, an effect observed up to P14, mainly affecting mesencephalon and hippocampus, suggesting a sustained oxidative stress after the posthypoxia period. The oxidative stress observed postnatally can in part be associated to a respiratory apneic-like deficit, since there was a statistically significant decrease in respiration frequency in AS compared to CS neonates, also up to P14, together with the signs of a decreased peripheral blood perfusion (pink-blue skin colour in AS, compared to the pink colour observed in all CS neonates). It is proposed that PA implies a long-term metabolic insult, triggered by the length of hypoxia, the resuscitation/reoxigenation manoevres, but also by the developmental stage of the affected brain regions, and the integrity of cardiovascular and respiratory physiological functions, which are fundamental for warrantying a proper development.
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Affiliation(s)
- Carolyne Lespay-Rebolledo
- Programme of Molecular & Clinical Pharmacology, ICBM, Medical Faculty, University of Chile, Av. Independencia 1027, PO Box 8389100, Santiago, Chile
| | - Ronald Perez-Lobos
- Programme of Molecular & Clinical Pharmacology, ICBM, Medical Faculty, University of Chile, Av. Independencia 1027, PO Box 8389100, Santiago, Chile
| | - Andrea Tapia-Bustos
- Programme of Molecular & Clinical Pharmacology, ICBM, Medical Faculty, University of Chile, Av. Independencia 1027, PO Box 8389100, Santiago, Chile
| | - Valentina Vio
- Programme of Molecular & Clinical Pharmacology, ICBM, Medical Faculty, University of Chile, Av. Independencia 1027, PO Box 8389100, Santiago, Chile
| | - Paola Morales
- Programme of Molecular & Clinical Pharmacology, ICBM, Medical Faculty, University of Chile, Av. Independencia 1027, PO Box 8389100, Santiago, Chile
- Department Neuroscience, Medical Faculty, University of Chile, Santiago, Chile
| | - Mario Herrera-Marschitz
- Programme of Molecular & Clinical Pharmacology, ICBM, Medical Faculty, University of Chile, Av. Independencia 1027, PO Box 8389100, Santiago, Chile.
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32
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Habashy WS, Milfort MC, Rekaya R, Aggrey SE. Expression of genes that encode cellular oxidant/antioxidant systems are affected by heat stress. Mol Biol Rep 2018; 45:389-394. [PMID: 29619655 DOI: 10.1007/s11033-018-4173-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 03/24/2018] [Indexed: 01/31/2023]
Abstract
Heat stress causes critical molecular dysfunction that affects productivity in chickens. Thus, the purpose of this study was to evaluate the effect of heat stress (HS) on the expression of select genes in the oxidation/antioxidation machinery in the liver of chickens. Chickens at 14 days of age were randomly assigned to two treatment groups and kept under either a constant normal temperature (25 °C) or high temperature (35 °C) in individual cages for 12 days. mRNA expression of Nrf2, oxidants NADPH(NOX): [NOX1, NOX2, NOX3, NOX4, NOX5 and DUOX2], and antioxidants [SOD1, CAT, GR, GPx1, NQO1] in the liver were analyzed at 1 and 12 days post-HS. We show that, HS changes the mRNA expression of oxidants thereby increasing cellular reactive oxygen species (ROS). Additionally, persistent HS up-regulates SOD which converts superoxides to hydrogen peroxide. We further demonstrated the dynamic relationship between catalase, GSH peroxidase (GPx) and NADPH under both acute and chronic heat stress. The pentose phosphate pathway could be important under HS since it generates NADPH which serves as a cofactor for GPx. Also, methionine, a precursor of cysteine has been shown to have reducing properties and thereby makes for an alternative fuel for redox processes. Genes in the ROS and antioxidant generation pathways may provide insight into nutritional intervention strategies, especially the use of methionine and/or cysteine when birds are suffering from heat stress.
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Affiliation(s)
- Walid S Habashy
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, GA, 30602, USA.,Department of Animal and Poultry Production, Damanhour University, Damanhour, Al-Behira, Egypt
| | - Marie C Milfort
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, GA, 30602, USA
| | - Romdhane Rekaya
- Department of Animal and Dairy Sciences, University of Georgia, Athens, GA, 30602, USA
| | - Samuel E Aggrey
- NutriGenomics Laboratory, Department of Poultry Science, University of Georgia, Athens, GA, 30602, USA.
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33
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Ko E, Seo HW, Jung G. Telomere length and reactive oxygen species levels are positively associated with a high risk of mortality and recurrence in hepatocellular carcinoma. Hepatology 2018; 67:1378-1391. [PMID: 29059467 DOI: 10.1002/hep.29604] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/25/2017] [Accepted: 10/16/2017] [Indexed: 12/27/2022]
Abstract
UNLABELLED Telomeres protect chromosomal ends from deterioration and have been shown to be susceptible to shortening by reactive oxygen species (ROS)-induced damage. ROS levels increase during the progression from early to advanced hepatocellular carcinoma (HCC). An independent study found that the telomeres in most HCC tissues lengthened during carcinogenic advancement. Activated telomerase has been hypothesized to elongate telomeres during the progression of malignant HCC, but it remains unclear which signaling pathway is necessary for telomerase activation in HCC. Here, we showed using cell lines derived from human HCC that H2 O2 , which is a major component of ROS in living organisms, elongates telomeres by increasing telomerase activity through protein kinase B (AKT) activation. The AKT inhibitor, perifosine, decreased telomere length, cellular viability, and H2 O2 -mediated migration and invasion capacity in HCC cells while also inhibiting AKT activation, telomere maintenance, and tumor growth in nude mice. Advanced HCC tissues showed a positive correlation among ROS levels, phosphorylated AKT (pAKT) levels, and telomere length. Furthermore, patients with HCC tumors that have high ROS levels and long telomeres displayed poorer survival rates. These data demonstrate the significant utilities of ROS levels, pAKT levels, and telomere length for predicting a poor prognosis in patients with HCC. Taken together, AKT activation could be essential for telomere maintenance in advanced HCC tumors as well as being an important contributor to malignant HCC progression. CONCLUSION We showed that H2 O2 contributes to telomere elongation through AKT activation in advanced HCC, suggesting that an AKT inhibitor such as perifosine may be useful for treating patients with malignant HCC. (Hepatology 2018;67:1378-1391).
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Affiliation(s)
- Eunkyong Ko
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
| | - Hyun-Wook Seo
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
| | - Guhung Jung
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
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Evaluation of Potential Mechanisms Controlling the Catalase Expression in Breast Cancer Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018. [PMID: 29535798 PMCID: PMC5829333 DOI: 10.1155/2018/5351967] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Development of cancer cell resistance against prooxidant drugs limits its potential clinical use. MCF-7 breast cancer cells chronically exposed to ascorbate/menadione became resistant (Resox cells) by increasing mainly catalase activity. Since catalase appears as an anticancer target, the elucidation of mechanisms regulating its expression is an important issue. In MCF-7 and Resox cells, karyotype analysis showed that chromosome 11 is not altered compared to healthy mammary epithelial cells. The genomic gain of catalase locus observed in MCF-7 and Resox cells cannot explain the differential catalase expression. Since ROS cause DNA lesions, the activation of DNA damage signaling pathways may influence catalase expression. However, none of the related proteins (i.e., p53, ChK) was activated in Resox cells compared to MCF-7. The c-abl kinase may lead to catalase protein degradation via posttranslational modifications, but neither ubiquitination nor phosphorylation of catalase was detected after catalase immunoprecipitation. Catalase mRNA levels did not decrease after actinomycin D treatment in both cell lines. DNMT inhibitor (5-aza-2′-deoxycytidine) increased catalase protein level in MCF-7 and its resistance to prooxidant drugs. In line with our previous report, chromatin remodeling appears as the main regulator of catalase expression in breast cancer after chronic exposure to an oxidative stress.
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Gunes S, Agarwal A, Henkel R, Mahmutoglu AM, Sharma R, Esteves SC, Aljowair A, Emirzeoglu D, Alkhani A, Pelegrini L, Joumah A, Sabanegh E. Association between promoter methylation of MLH1
and MSH2
and reactive oxygen species in oligozoospermic men-A pilot study. Andrologia 2017; 50. [DOI: 10.1111/and.12903] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2017] [Indexed: 01/21/2023] Open
Affiliation(s)
- S. Gunes
- Medical Biology; Ondokuz Mayis University; Samsun Turkey
- Molecular Medicine; Ondokuz Mayis University; Samsun Turkey
| | - A. Agarwal
- Cleveland Clinic; American Center for Reproductive Medicine; Cleveland OH USA
| | - R. Henkel
- Department of Medical Bioscience; University of Western Cape; Bellville South Africa
| | | | - R. Sharma
- Cleveland Clinic; American Center for Reproductive Medicine; Cleveland OH USA
| | - S. C. Esteves
- ANDROFERT; Andrology and Human Reproduction Clinic; Campinas Brazil
| | - A. Aljowair
- Prince Sattam bin Abdulaziz University; Al-Kharj Saudi Arabia
| | - D. Emirzeoglu
- Molecular Medicine; Ondokuz Mayis University; Samsun Turkey
| | - A. Alkhani
- Alfaisal University; Riyadh Saudi Arabia
| | | | - A. Joumah
- Prince Sattam bin Abdulaziz University; Al-Kharj Saudi Arabia
| | - E. Sabanegh
- Department of Urology; Cleveland Clinic; Cleveland OH USA
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36
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Mrozek-Wilczkiewicz A, Malarz K, Rams-Baron M, Serda M, Bauer D, Montforts FP, Ratuszna A, Burley T, Polanski J, Musiol R. Iron Chelators and Exogenic Photosensitizers. Synergy through Oxidative Stress Gene Expression. J Cancer 2017; 8:1979-1987. [PMID: 28819397 PMCID: PMC5559958 DOI: 10.7150/jca.17959] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/22/2017] [Indexed: 02/05/2023] Open
Abstract
In non-invasive anticancer photodynamic therapy (PDT), a nontoxic photosensitizer (PS), which is activated by visible light, is used as a magic bullet that selectively destroys cancer cells. Recently, we described the combined therapy of 5-aminolevulinic acid (ALA-PDT) with thiosemicarbazone (TSC), i.e. an iron-chelating agent. This resulted in a strong synergistic effect. Herein, we investigated a novel strategy using a combination of PDT consist of the xenobiotic-porphyrin type PS with TSC. We observed a synergistic effect for all of the pairs of TSC-PS. This approach can be rationalized by the fact that both chlorin and TSC can affect the generation of reactive oxygen species (ROS). In order to elucidate the plausible mechanism of action, we also combined the investigated PSs with DFO, which forms complexes that are redox inactive. We detected a slight antagonism or additivity for this combination. This may suggest that the ability of an iron chelator (IC) to participate in the production of ROS and the generation of oxidative stress is important.
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Affiliation(s)
- Anna Mrozek-Wilczkiewicz
- A. Chełkowski Institute of Physics, University of Silesia in Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, Chorzów, Poland
| | - Katarzyna Malarz
- Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, Chorzów, Poland.,Institute of Chemistry, University of Silesia in Katowice, Poland
| | - Marzena Rams-Baron
- A. Chełkowski Institute of Physics, University of Silesia in Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, Chorzów, Poland
| | - Maciej Serda
- Institute of Chemistry, University of Silesia in Katowice, Poland
| | - Daniela Bauer
- Institute of Organic and Analytical Chemistry, University of Bremen, Germany
| | | | - Alicja Ratuszna
- A. Chełkowski Institute of Physics, University of Silesia in Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, Chorzów, Poland
| | - Thomas Burley
- The Institute of Cancer Research, London, United Kingdom
| | | | - Robert Musiol
- Institute of Chemistry, University of Silesia in Katowice, Poland
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37
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Gruzieva O, Xu CJ, Breton CV, Annesi-Maesano I, Antó JM, Auffray C, Ballereau S, Bellander T, Bousquet J, Bustamante M, Charles MA, de Kluizenaar Y, den Dekker HT, Duijts L, Felix JF, Gehring U, Guxens M, Jaddoe VV, Jankipersadsing SA, Merid SK, Kere J, Kumar A, Lemonnier N, Lepeule J, Nystad W, Page CM, Panasevich S, Postma D, Slama R, Sunyer J, Söderhäll C, Yao J, London SJ, Pershagen G, Koppelman GH, Melén E. Epigenome-Wide Meta-Analysis of Methylation in Children Related to Prenatal NO2 Air Pollution Exposure. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:104-110. [PMID: 27448387 PMCID: PMC5226705 DOI: 10.1289/ehp36] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/13/2016] [Accepted: 06/22/2016] [Indexed: 05/04/2023]
Abstract
BACKGROUND Prenatal exposure to air pollution is considered to be associated with adverse effects on child health. This may partly be mediated by mechanisms related to DNA methylation. OBJECTIVES We investigated associations between exposure to air pollution, using nitrogen dioxide (NO2) as marker, and epigenome-wide cord blood DNA methylation. METHODS We meta-analyzed the associations between NO2 exposure at residential addresses during pregnancy and cord blood DNA methylation (Illumina 450K) in four European and North American studies (n = 1,508) with subsequent look-up analyses in children ages 4 (n = 733) and 8 (n = 786) years. Additionally, we applied a literature-based candidate approach for antioxidant and anti-inflammatory genes. To assess influence of exposure at the transcriptomics level, we related mRNA expression in blood cells to NO2 exposure in 4- (n = 111) and 16-year-olds (n = 239). RESULTS We found epigenome-wide significant associations [false discovery rate (FDR) p < 0.05] between maternal NO2 exposure during pregnancy and DNA methylation in newborns for 3 CpG sites in mitochondria-related genes: cg12283362 (LONP1), cg24172570 (3.8 kbp upstream of HIBADH), and cg08973675 (SLC25A28). The associations with cg08973675 methylation were also significant in the older children. Further analysis of antioxidant and anti-inflammatory genes revealed differentially methylated CpGs in CAT and TPO in newborns (FDR p < 0.05). NO2 exposure at the time of biosampling in childhood had a significant impact on CAT and TPO expression. CONCLUSIONS NO2 exposure during pregnancy was associated with differential offspring DNA methylation in mitochondria-related genes. Exposure to NO2 was also linked to differential methylation as well as expression of genes involved in antioxidant defense pathways. Citation: Gruzieva O, Xu CJ, Breton CV, Annesi-Maesano I, Antó JM, Auffray C, Ballereau S, Bellander T, Bousquet J, Bustamante M, Charles MA, de Kluizenaar Y, den Dekker HT, Duijts L, Felix JF, Gehring U, Guxens M, Jaddoe VV, Jankipersadsing SA, Merid SK, Kere J, Kumar A, Lemonnier N, Lepeule J, Nystad W, Page CM, Panasevich S, Postma D, Slama R, Sunyer J, Söderhäll C, Yao J, London SJ, Pershagen G, Koppelman GH, Melén E. 2017. Epigenome-wide meta-analysis of methylation in children related to prenatal NO2 air pollution exposure. Environ Health Perspect 125:104-110; http://dx.doi.org/10.1289/EHP36.
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Affiliation(s)
- Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Address corresponence to O. Gruzieva, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, SE-17177 Stockholm, Sweden. Telephone: 46852480022. E-mail:
| | - Cheng-Jian Xu
- Groningen Research Institute for Asthma and COPD (GRIAC), Department of Pulmonology, and
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Carrie V. Breton
- Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA
| | - Isabella Annesi-Maesano
- Department of Epidemiology of Allergic and Respiratory Diseases, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France
| | - Josep M. Antó
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Charles Auffray
- European Institute for Systems Biology and Medicine, Université de Lyon, Lyon, France
| | - Stéphane Ballereau
- European Institute for Systems Biology and Medicine, Université de Lyon, Lyon, France
| | - Tom Bellander
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
| | - Jean Bousquet
- CHU (Centre Hospitalier Universitaire) Montpellier, University of Montpellier, Montpellier, France
| | - Mariona Bustamante
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Center for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Marie-Aline Charles
- Early Origin of the Child’s Health And Development (ORCHAD) team, Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153) Inserm, Université Paris Descartes, Villejuif, France
| | - Yvonne de Kluizenaar
- The Netherlands Organization for Applied Scientific Research (TNO), Delft, the Netherlands
| | - Herman T. den Dekker
- Generation R Study Group,
- Department of Epidemiology, and
- Department of Pediatrics, Erasmus MC (Medical Centre), University Medical Center, Rotterdam, the Netherlands
| | - Liesbeth Duijts
- Generation R Study Group,
- Department of Epidemiology, and
- Department of Pediatrics, Erasmus MC (Medical Centre), University Medical Center, Rotterdam, the Netherlands
| | - Janine F. Felix
- Generation R Study Group,
- Department of Epidemiology, and
- Department of Pediatrics, Erasmus MC (Medical Centre), University Medical Center, Rotterdam, the Netherlands
| | - Ulrike Gehring
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Mònica Guxens
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Centre–Sophia Children’s Hospital, Rotterdam, the Netherlands
| | - Vincent V.W. Jaddoe
- Generation R Study Group,
- Department of Epidemiology, and
- Department of Pediatrics, Erasmus MC (Medical Centre), University Medical Center, Rotterdam, the Netherlands
| | - Soesma A. Jankipersadsing
- Groningen Research Institute for Asthma and COPD (GRIAC), Department of Pulmonology, and
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Simon Kebede Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Juha Kere
- Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Ashish Kumar
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Unit of Chronic Disease Epidemiology, Department of Public Health Epidemiology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Nathanael Lemonnier
- European Institute for Systems Biology and Medicine, Université de Lyon, Lyon, France
| | - Johanna Lepeule
- Team of Environmental Epidemiology, Inserm and University Grenoble-Alpes, IAB (U1209), Grenoble, France
| | - Wenche Nystad
- Division for Physical and Mental health, Norwegian Institute of Public Health, Oslo, Norway
| | - Christian Magnus Page
- Division for Physical and Mental health, Norwegian Institute of Public Health, Oslo, Norway
| | - Sviatlana Panasevich
- Division for Physical and Mental health, Norwegian Institute of Public Health, Oslo, Norway
| | - Dirkje Postma
- Groningen Research Institute for Asthma and COPD (GRIAC), Department of Pulmonology, and
| | - Rémy Slama
- Team of Environmental Epidemiology, Inserm and University Grenoble-Alpes, IAB (U1209), Grenoble, France
| | - Jordi Sunyer
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Cilla Söderhäll
- Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
- Department of Women´s and Children´s Health, Karolinska Institutet, Stockholm, Sweden
| | - Jin Yao
- Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA
| | - Stephanie J. London
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
| | - Gerard H. Koppelman
- Groningen Research Institute for Asthma and COPD (GRIAC), Beatrix Children’s Hospital, Department of Pediatric Pulmonology and Pediatric Allergology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
- Sachs Children’s Hospital, Stockholm, Sweden
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Generation of reactive oxygen species via inhibition of liver catalase by oxalli-palladium: A spectroscopic and docking study. Process Biochem 2017. [DOI: 10.1016/j.procbio.2016.10.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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39
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Abstract
Oxidative stress has a significant impact on the development and progression of common human pathologies, including cancer, diabetes, hypertension and neurodegenerative diseases. Increasing evidence suggests that oxidative stress globally influences chromatin structure, DNA methylation, enzymatic and non-enzymatic post-translational modifications of histones and DNA-binding proteins. The effects of oxidative stress on these chromatin alterations mediate a number of cellular changes, including modulation of gene expression, cell death, cell survival and mutagenesis, which are disease-driving mechanisms in human pathologies. Targeting oxidative stress-dependent pathways is thus a promising strategy for the prevention and treatment of these diseases. We summarize recent research developments connecting oxidative stress and chromatin regulation.
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Affiliation(s)
- Sarah Kreuz
- King Abdullah University of Science & Technology (KAUST), Environmental Epigenetics Program, Thuwal 23955-6900, Saudi Arabia
| | - Wolfgang Fischle
- King Abdullah University of Science & Technology (KAUST), Environmental Epigenetics Program, Thuwal 23955-6900, Saudi Arabia
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40
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ROS, Cell Senescence, and Novel Molecular Mechanisms in Aging and Age-Related Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:3565127. [PMID: 27247702 PMCID: PMC4877482 DOI: 10.1155/2016/3565127] [Citation(s) in RCA: 612] [Impact Index Per Article: 76.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 04/02/2016] [Accepted: 04/06/2016] [Indexed: 12/15/2022]
Abstract
The aging process worsens the human body functions at multiple levels, thus causing its gradual decrease to resist stress, damage, and disease. Besides changes in gene expression and metabolic control, the aging rate has been associated with the production of high levels of Reactive Oxygen Species (ROS) and/or Reactive Nitrosative Species (RNS). Specific increases of ROS level have been demonstrated as potentially critical for induction and maintenance of cell senescence process. Causal connection between ROS, aging, age-related pathologies, and cell senescence is studied intensely. Senescent cells have been proposed as a target for interventions to delay the aging and its related diseases or to improve the diseases treatment. Therapeutic interventions towards senescent cells might allow restoring the health and curing the diseases that share basal processes, rather than curing each disease in separate and symptomatic way. Here, we review observations on ROS ability of inducing cell senescence through novel mechanisms that underpin aging processes. Particular emphasis is addressed to the novel mechanisms of ROS involvement in epigenetic regulation of cell senescence and aging, with the aim to individuate specific pathways, which might promote healthy lifespan and improve aging.
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41
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Lam P, Cheung F, Tan HY, Wang N, Yuen MF, Feng Y. Hepatoprotective Effects of Chinese Medicinal Herbs: A Focus on Anti-Inflammatory and Anti-Oxidative Activities. Int J Mol Sci 2016; 17:465. [PMID: 27043533 PMCID: PMC4848921 DOI: 10.3390/ijms17040465] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/21/2016] [Accepted: 03/21/2016] [Indexed: 12/12/2022] Open
Abstract
The liver is intimately connected to inflammation, which is the innate defense system of the body for removing harmful stimuli and participates in the hepatic wound-healing response. Sustained inflammation and the corresponding regenerative wound-healing response can induce the development of fibrosis, cirrhosis and eventually hepatocellular carcinoma. Oxidative stress is associated with the activation of inflammatory pathways, while chronic inflammation is found associated with some human cancers. Inflammation and cancer may be connected by the effect of the inflammation-fibrosis-cancer (IFC) axis. Chinese medicinal herbs display abilities in protecting the liver compared to conventional therapies, as many herbal medicines have been shown as effective anti-inflammatory and anti-oxidative agents. We review the relationship between oxidative stress and inflammation, the development of hepatic diseases, and the hepatoprotective effects of Chinese medicinal herbs via anti-inflammatory and anti-oxidative mechanisms. Moreover, several Chinese medicinal herbs and composite formulae, which have been commonly used for preventing and treating hepatic diseases, including Andrographis Herba, Glycyrrhizae Radix et Rhizoma, Ginseng Radix et Rhizoma, Lycii Fructus, Coptidis Rhizoma, curcumin, xiao-cha-hu-tang and shi-quan-da-bu-tang, were selected for reviewing their hepatoprotective effects with focus on their anti-oxidative and ant-inflammatory activities. This review aims to provide new insight into how Chinese medicinal herbs work in therapeutic strategies for liver diseases.
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Affiliation(s)
- Puiyan Lam
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China.
| | - Fan Cheung
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China.
| | - Hor Yue Tan
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China.
| | - Ning Wang
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China.
| | - Man Fung Yuen
- Division of Gastroenterology and Hepatology, Queen Mary Hospital and Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Yibin Feng
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China.
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42
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Rentsendorj O, Zhang X, Williams MC, Buehler PW, D’Agnillo F. Transcriptional Suppression of Renal Antioxidant Enzyme Systems in Guinea Pigs Exposed to Polymerized Cell-Free Hemoglobin. TOXICS 2016; 4. [PMID: 27471729 PMCID: PMC4961095 DOI: 10.3390/toxics4010006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hemoglobin-based oxygen carriers (HBOCs) are being developed as oxygen and plasma volume-expanding therapeutics though their potential to promote oxidative tissue injury has raised safety concerns. Using a guinea pig exchange transfusion model, we examined the effects of polymerized bovine hemoglobin (HbG) on the transcriptional regulation, activity, and expression of the renal antioxidant enzymes; superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx). HbG infusion downregulated the mRNA levels for genes encoding SOD isoforms 1-3, GPx1, GPx3, GPx4, and CAT. This transcriptional suppression correlated with decreased enzymatic activities for SOD, CAT, and GPx. Immunostaining revealed decreased protein expression of SOD1, CAT, and GPx1 primarily in renal cortical tubules. DNA methylation analyses identified CpG hypermethylation in the gene promoters for SOD1-3, GPx1, GPx3, and GPx4, suggesting an epigenetic-based mechanism underlying the observed gene repression. HbG also induced oxidative stress as evidenced by increased renal lipid peroxidation end-products and 4-HNE immunostaining, which could be the result of the depleted antioxidant defenses and/or serve as a trigger for increased DNA methylation. Together, these findings provide evidence that the renal exposure to HbG suppresses the function of major antioxidant defense systems which may have relevant implications for understanding the safety of hemoglobin-based products.
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43
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Jovanović B, Cvetković VJ, Mitrović TL. Effects of human food grade titanium dioxide nanoparticle dietary exposure on Drosophila melanogaster survival, fecundity, pupation and expression of antioxidant genes. CHEMOSPHERE 2016; 144:43-49. [PMID: 26344147 DOI: 10.1016/j.chemosphere.2015.08.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 06/05/2023]
Abstract
The fruitfly, Drosophila melanogaster was exposed to the human food grade of E171 titanium dioxide (TiO2). This is a special grade of TiO2 which is frequently omitted in nanotoxicology studies dealing with TiO2, yet it is the most relevant grade regarding oral exposure of humans. D. melanogaster larvae were exposed to 0.002 mg mL(-1), 0.02 mg mL(-1), 0.2 mg mL(-1), and 2 mg mL(-1) of TiO2 in feeding medium, and the survival, fecundity, pupation time, and expression of genes involved in oxidative stress response were monitored. TiO2 did not affect survival but significantly increased time to pupation (p < 0.001). Fecundity of D. melanogaster was unaffected by the treatment. Expression of the gene for catalase was markedly downregulated by the treatment, while the effect on the downregulation of superoxide dismutase 2 was less pronounced. After four days of dietary exposure TiO2 was present in a significant amount in larvae, but was not transferred to adults during metamorphosis. Two individuals with aberrant phenotype similar to previously described gold nanoparticles induced mutant phenotypes were detected in the group exposed to TiO2. In general, TiO2 showed little toxicity toward D. melanogaster at concentrations relevant to oral exposure of humans.
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Affiliation(s)
- Boris Jovanović
- Chair for Fish Diseases and Fisheries Biology, Faculty of Veterinary Medicine, Ludwig Maximilian University of Munich (LMU), Munich, Germany; Center for Nanoscience (CeNS), LMU, Munich, Germany.
| | - Vladimir J Cvetković
- Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, Niš, Serbia
| | - Tatjana Lj Mitrović
- Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, Niš, Serbia
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Ávila JGO, Echeverri I, de Plata CA, Castillo A. Impact of oxidative stress during pregnancy on fetal epigenetic patterns and early origin of vascular diseases. Nutr Rev 2015; 73:12-21. [PMID: 26024054 DOI: 10.1093/nutrit/nuu001] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Epidemiological studies have led scientists to postulate the developmental origins of health and disease hypothesis for noncommunicable diseases such as diabetes, cardiovascular diseases, hypertension, and obesity. However, the cellular and molecular mechanisms involved in the development of these diseases are not well understood. In various animal models, it has been observed that oxidative stress during pregnancy is associated with the early development of endothelial dysfunction in offspring. This phenomenon suggests that endothelial dysfunction may initiate in the uterus and could lead to increased risk of cardiovascular disease later in life. Currently, it is known that many of the fetal adaptive responses to environmental factors are mediated by epigenetic changes in the genome, especially by the degree of methylation in cytosines in the promoter regions of genes. These findings suggest that the establishment of a particular epigenetic pattern in the genome may be generated by oxidative stress.
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Affiliation(s)
- Jose Guillermo Ortega Ávila
- J.G. Ortega Ávila is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, Research Group on Basic and Clinical Health Sciences, School of Medicine, Pontificia Universidad Javeriana, Cali, Colombia. I. Echeverri is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, School of Medicine, Universidad ICESI, Cali, Colombia. C. Aguilar de Plata and A. Castillo are with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia.
| | - Isabella Echeverri
- J.G. Ortega Ávila is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, Research Group on Basic and Clinical Health Sciences, School of Medicine, Pontificia Universidad Javeriana, Cali, Colombia. I. Echeverri is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, School of Medicine, Universidad ICESI, Cali, Colombia. C. Aguilar de Plata and A. Castillo are with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia
| | - Cecilia Aguilar de Plata
- J.G. Ortega Ávila is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, Research Group on Basic and Clinical Health Sciences, School of Medicine, Pontificia Universidad Javeriana, Cali, Colombia. I. Echeverri is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, School of Medicine, Universidad ICESI, Cali, Colombia. C. Aguilar de Plata and A. Castillo are with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia
| | - Andrés Castillo
- J.G. Ortega Ávila is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, Research Group on Basic and Clinical Health Sciences, School of Medicine, Pontificia Universidad Javeriana, Cali, Colombia. I. Echeverri is with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia and the Department of Basic Sciences, School of Medicine, Universidad ICESI, Cali, Colombia. C. Aguilar de Plata and A. Castillo are with the Department of Physiological Sciences, Nutrition Group, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia
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Glorieux C, Zamocky M, Sandoval JM, Verrax J, Calderon PB. Regulation of catalase expression in healthy and cancerous cells. Free Radic Biol Med 2015; 87:84-97. [PMID: 26117330 DOI: 10.1016/j.freeradbiomed.2015.06.017] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/08/2015] [Accepted: 06/10/2015] [Indexed: 11/28/2022]
Abstract
Catalase is an important antioxidant enzyme that dismutates hydrogen peroxide into water and molecular oxygen. The catalase gene has all the characteristics of a housekeeping gene (no TATA box, no initiator element sequence, high GC content in promoter) and a core promoter that is highly conserved among species. We demonstrate in this review that within this core promoter, the presence of DNA binding sites for transcription factors, such as NF-Y and Sp1, plays an essential role in the positive regulation of catalase expression. Additional transcription factors, such as FoxO3a, are also involved in this regulatory process. There is strong evidence that the protein Akt/PKB in the PI3K signaling pathway plays a major role in the expression of catalase by modulating the activity of FoxO3a. Over the past decade, other transcription factors (PPARγ, Oct-1, etc.), as well as genetic, epigenetic, and posttranscriptional processes, have emerged as crucial contributors to the regulation of catalase expression. Altered expression levels of catalase have been reported in cancer tissues compared to their normal counterparts. Deciphering the molecular mechanisms that regulate catalase expression could, therefore, be of crucial importance for the future development of pro-oxidant cancer chemotherapy.
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Affiliation(s)
- Christophe Glorieux
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Marcel Zamocky
- Division of Biochemistry, Department of Chemistry, University of Natural Resources and Life Sciences (BOKU), A-1190 Vienna, Austria; Institute of Molecular Biology, Slovak Academy of Sciences, SK-84551 Bratislava, Slovakia
| | - Juan Marcelo Sandoval
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Julien Verrax
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Pedro Buc Calderon
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile.
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Chia YY, Kanthimathi MS, Khoo KS, Rajarajeswaran J, Cheng HM, Yap WS. Antioxidant and cytotoxic activities of three species of tropical seaweeds. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:339. [PMID: 26415532 PMCID: PMC4587585 DOI: 10.1186/s12906-015-0867-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 09/18/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND Three species of seaweeds (Padina tetrastromatica, Caulerpa racemosa and Turbinaria ornata) are widely consumed by Asians as nutraceutical food due to their antioxidant properties. Studies have shown that these seaweeds exhibit bioactivities which include antimicrobial, antiviral, anti-hypertensive and anticoagulant activities. However, investigations into the mechanisms of action pertaining to the cytotoxic activity of the seaweeds are limited. The aim of this study was to determine the antioxidant and cytotoxic activities of whole extracts of P. tetrastromatica, C. racemosa and T. ornata, including the cellular events leading to the apoptotic cell death of the extract treated-MCF-7 cells. Bioassay guided fractionation was carried out and the compounds identified. METHODS Powdered samples were sequentially extracted for 24 h. Their antioxidant activities were assessed by the DPPH radical, superoxide, nitric oxide and hydroxyl radical scavenging assays. The cytotoxic activity of the extract-treated MCF-7cells was assessed using the MTT assay. The most potent fraction was subjected to bioassay guided fractionation with column chromatography. All the fractions were tested for cytotoxic activity, caspase activity and effect on DNA fragmentation. RESULTS All three seaweeds showed potent radical scavenging activities in the various assays. The activity of the cellular antioxidant enzymes, superoxide dismutase, catalase and glutathione reductase, in MCF-7 cells, decreased in a time-dependent manner. The partially purified fractions exhibited higher cytotoxic activity, as assessed by the MTT assay, than the whole extracts in the breast adenocarcinoma cell line, MCF-7. LC-MS analysis revealed the presence of bioactive alkaloids such as camptothecin, lycodine and pesudopelletierine. CONCLUSION Based on the results obtained, all three seaweeds are rich sources of enzymatic and non-enzymatic antioxidants which could contribute to their reported medicinal benefits.
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Affiliation(s)
- Yin Yin Chia
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - M S Kanthimathi
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
- University of Malaya Centre for Proteomics Research (UMCPR), University of Malaya, Kuala Lumpur, Malaysia.
| | - Kong Soo Khoo
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman (Kampar campus), Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia.
| | - Jayakumar Rajarajeswaran
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Hwee Ming Cheng
- Department of Physiology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Wai Sum Yap
- Department of Biotechnology, Faculty of Applied Sciences, UCSI University, 56000 UCSI Heights, Kuala Lumpur, Malaysia.
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Farr RL, Lismont C, Terlecky SR, Fransen M. Peroxisome biogenesis in mammalian cells: The impact of genes and environment. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1863:1049-60. [PMID: 26305119 DOI: 10.1016/j.bbamcr.2015.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/13/2015] [Accepted: 08/18/2015] [Indexed: 01/16/2023]
Abstract
The initiation and progression of many human diseases are mediated by a complex interplay of genetic, epigenetic, and environmental factors. As all diseases begin with an imbalance at the cellular level, it is essential to understand how various types of molecular aberrations, metabolic changes, and environmental stressors function as switching points in essential communication networks. In recent years, peroxisomes have emerged as important intracellular hubs for redox-, lipid-, inflammatory-, and nucleic acid-mediated signaling pathways. In this review, we focus on how nature and nurture modulate peroxisome biogenesis and function in mammalian cells. First, we review emerging evidence that changes in peroxisome activity can be linked to the epigenetic regulation of cell function. Next, we outline how defects in peroxisome biogenesis may directly impact cellular pathways involved in the development of disease. In addition, we discuss how changes in the cellular microenvironment can modulate peroxisome biogenesis and function. Finally, given the importance of peroxisome function in multiple aspects of health, disease, and aging, we highlight the need for more research in this still understudied field.
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Affiliation(s)
- Rebecca L Farr
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven, Herestraat 49 box 601, B-3000 Leuven, Belgium; Department of Pharmacology, Wayne State University School of Medicine, 540 E. Canfield Ave., Detroit, MI 48201, USA
| | - Celien Lismont
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven, Herestraat 49 box 601, B-3000 Leuven, Belgium
| | - Stanley R Terlecky
- Department of Pharmacology, Wayne State University School of Medicine, 540 E. Canfield Ave., Detroit, MI 48201, USA
| | - Marc Fransen
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven-University of Leuven, Herestraat 49 box 601, B-3000 Leuven, Belgium.
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Afanas'ev I. Mechanisms of superoxide signaling in epigenetic processes: relation to aging and cancer. Aging Dis 2015; 6:216-27. [PMID: 26029480 DOI: 10.14336/ad.2014.0924] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 09/24/2014] [Indexed: 01/09/2023] Open
Abstract
Superoxide is a precursor of many free radicals and reactive oxygen species (ROS) in biological systems. It has been shown that superoxide regulates major epigenetic processes of DNA methylation, histone methylation, and histone acetylation. We suggested that superoxide, being a radical anion and a strong nucleophile, could participate in DNA methylation and histone methylation and acetylation through mechanism of nucleophilic substitution and free radical abstraction. In nucleophilic reactions superoxide is able to neutralize positive charges of methyl donors S-adenosyl-L-methionine (SAM) and acetyl-coenzyme A (AcCoA) enhancing their nucleophilic capacity or to deprotonate cytosine. In the reversed free radical reactions of demethylation and deacetylation superoxide is formed catalytically by the (Tet) family of dioxygenates and converted into the iron form of hydroxyl radical with subsequent oxidation and final eradication of methyl substituents. Double role of superoxide in these epigenetic processes might be of importance for understanding of ROS effects under physiological and pathological conditions including cancer and aging.
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Affiliation(s)
- Igor Afanas'ev
- Vitamin Research Institute, Moscow, Russia, Porto, Portugal
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49
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Gonçalves AC, Cortesão E, Oliveiros B, Alves V, Espadana AI, Rito L, Magalhães E, Pereira S, Pereira A, Costa JMN, Mota-Vieira L, Sarmento-Ribeiro AB. Oxidative stress levels are correlated with P15 and P16 gene promoter methylation in myelodysplastic syndrome patients. Clin Exp Med 2015; 16:333-43. [PMID: 25982567 DOI: 10.1007/s10238-015-0357-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 05/03/2015] [Indexed: 11/24/2022]
Abstract
Oxidative stress and abnormal DNA methylation have been implicated in some types of cancer, namely in myelodysplastic syndromes (MDS). Since both mechanisms are observed in MDS patients, we analyzed the correlation of intracellular levels of peroxides, superoxide anion, and glutathione (GSH), as well as ratios of peroxides/GSH and superoxide/GSH, with the methylation status of P15 and P16 gene promoters in bone marrow leukocytes from MDS patients. Compared to controls, these patients had lower GSH content, higher peroxide levels, peroxides/GSH and superoxide/GSH ratios, as well as higher methylation frequency of P15 and P16 gene promoters. Moreover, patients with methylated P15 gene had higher oxidative stress levels than patients without methylation (peroxides: 460 ± 42 MIF vs 229 ± 25 MIF, p = 0.001; superoxide: 383 ± 48 MIF vs 243 ± 17 MIF, p = 0.022; peroxides/GSH: 2.50 ± 0.08 vs 1.04 ± 0.34, p < 0.001; superoxide/GSH: 1.76 ± 0.21 vs 1.31 ± 0.10, p = 0.007). Patients with methylated P16 and at least one methylated gene had higher peroxide levels as well as peroxides/GSH ratio than patients without methylation. Interestingly, oxidative stress levels allow the discrimination of patients without methylation from ones with methylated P15, methylated P16, or at least one methylated (P15 or P16) promoter. Taken together, these findings support the hypothesis that oxidative stress is correlated with P15 and P16 hypermethylation.
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Affiliation(s)
- Ana Cristina Gonçalves
- Applied Molecular Biology, University Clinic of Hematology, Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,Center for Neuroscience and Cell Biology (CNC), Coimbra, Portugal
| | - Emília Cortesão
- Applied Molecular Biology, University Clinic of Hematology, Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,Clinical Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Barbara Oliveiros
- Laboratory for Biostatistics and Medical Informatics, Faculty of Medicine, University of Coimbra (FMUC), Coimbra, Portugal
| | - Vera Alves
- Immunology, Faculty of Medicine, University of Coimbra (FMUC), Coimbra, Portugal
| | - Ana Isabel Espadana
- Clinical Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Luís Rito
- Applied Molecular Biology, University Clinic of Hematology, Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal.,Clinical Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Emília Magalhães
- Clinical Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
| | - Sónia Pereira
- Medicine Department, Hospital Distrital da Figueira da Foz, Figueira da Foz, Portugal
| | - Amélia Pereira
- Medicine Department, Hospital Distrital da Figueira da Foz, Figueira da Foz, Portugal
| | - José Manuel Nascimento Costa
- Oncology Department, Centro Hospital e Universitário de Coimbra (CHUC), Coimbra, Portugal.,University Clinic of Oncology, Faculty of Medicine, University of Coimbra (FMUC), Coimbra, Portugal
| | - Luisa Mota-Vieira
- Molecular Genetics and Pathology Unit, Hospital of Divino Espírito Santo of Ponta Delgada EPE, São Miguel Island, Azores, Portugal.,Azores Genetics Research Group, Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Faculty of Sciences, Biosystems & Integrative Sciences Institute (BioISI), University of Lisboa, Lisbon, Portugal
| | - Ana Bela Sarmento-Ribeiro
- Applied Molecular Biology, University Clinic of Hematology, Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra (FMUC), Azinhaga de Santa Comba - Celas, 3000-548, Coimbra, Portugal. .,Center for Neuroscience and Cell Biology (CNC), Coimbra, Portugal. .,Clinical Hematology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal.
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50
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Yara S, Lavoie JC, Levy E. Oxidative stress and DNA methylation regulation in the metabolic syndrome. Epigenomics 2015; 7:283-300. [DOI: 10.2217/epi.14.84] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
DNA methylation is implicated in tissue-specific gene expression and genomic imprinting. It is modulated by environmental factors, especially nutrition. Modified DNA methylation patterns may contribute to health problems and susceptibility to complex diseases. Current advances have suggested that the metabolic syndrome (MS) is a programmable disease, which is characterized by epigenetic modifications of vital genes when exposed to oxidative stress. Therefore, the main objective of this paper is to critically review the central context of MS while presenting the most recent knowledge related to epigenetic alterations that are promoted by oxidative stress. Potential pro-oxidant mechanisms that orchestrate changes in methylation profiling and are related to obesity, diabetes and hypertension are discussed. It is anticipated that the identification and understanding of the role of DNA methylation marks could be used to uncover early predictors and define drugs or diet-related treatments able to delay or reverse epigenetic changes, thereby combating MS burden.
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Affiliation(s)
- Sabrina Yara
- Faculty of Medicine, Research Centre, Université de Montréal, CHU-Sainte-Justine, Montreal, QC, Canada, H3T 1C5
| | - Jean-Claude Lavoie
- Faculty of Medicine, Research Centre, Université de Montréal, CHU-Sainte-Justine, Montreal, QC, Canada, H3T 1C5
- Departments of Nutrition, Université de Montréal, Montreal, Quebec, Canada, H3T 1C5
| | - Emile Levy
- Faculty of Medicine, Research Centre, Université de Montréal, CHU-Sainte-Justine, Montreal, QC, Canada, H3T 1C5
- Departments of Nutrition, Université de Montréal, Montreal, Quebec, Canada, H3T 1C5
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