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Qin Y, Pei Z, Feng Z, Lin P, Wang S, Li Y, Huo F, Wang Q, Wang Z, Chen ZN, Wu J, Wang YF. Oncogenic Activation of YAP Signaling Sensitizes Ferroptosis of Hepatocellular Carcinoma via ALOXE3-Mediated Lipid Peroxidation Accumulation. Front Cell Dev Biol 2022; 9:751593. [PMID: 34977009 PMCID: PMC8717939 DOI: 10.3389/fcell.2021.751593] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 11/16/2021] [Indexed: 12/19/2022] Open
Abstract
Ferroptosis, a form of programmed cell death process driven by iron-dependent lipid peroxidation, plays an important role in tumor suppression. Although previous study showed that intracellular Merlin-Hippo signaling suppresses ferroptosis of epithelial tumor cells through the inactivation of YAP signaling, it remains elusive if the proto-oncogenic transcriptional co-activator YAP could serve as a potential biomarker to predict cancer cell response to ferroptosis-inducing therapies. In this study, we show that both total YAP staining and nuclear YAP staining were more prevalent in HCC tissues than in nontumorous regions. Compared to low-density HCC cells, high-density cells showed decreased nuclear localization of YAP and conferred significant resistance to ferroptosis. Oncogenic activation of YAP signaling by overexpression of YAP(S127A) mutant sensitized ferroptosis of HCC cells cultured in confluent density or in the 3D tumor spheroid model. Furthermore, we validated the lipoxygenase ALOXE3 as a YAP-TEAD target gene that contributed to YAP-promoted ferroptosis. Overexpression of ALOXE3 effectively increased the vulnerability of HCC cells to ferroptotic cell death. In an orthotopic mouse model of HCC, genetic activation of YAP rendered HCC cells more susceptible to ferroptosis. Finally, an overall survival assay further revealed that both a high expression of YAP and a low expression of GPX4 were correlated with increased survival of HCC patients with sorafenib treatment, which had been proven to be an inducer for ferroptosis by inhibition of the xc-amino acid antiporter. Together, this study unveils the critical role of intracellular YAP signaling in dictating ferroptotic cell death; it also suggests that pathogenic alterations of YAP signaling can serve as biomarkers to predict cancer cell responsiveness to future ferroptosis-inducing therapies.
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Affiliation(s)
- Yifei Qin
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China.,Guangzhou (Jinan) Biomedical Research and Development Center, Guangzhou, China
| | - Zhuo Pei
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Zhuan Feng
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Peng Lin
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Shijie Wang
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Yong Li
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Fei Huo
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Quancheng Wang
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Zhiping Wang
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhi-Nan Chen
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Jiao Wu
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an, China
| | - Yi-Fei Wang
- Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China.,Guangzhou (Jinan) Biomedical Research and Development Center, Guangzhou, China
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Gao MM, Huang HY, Chen SY, Tang HL, He N, Feng WC, Lu P, Hu F, Yan HJ, Long YS. The ALOXE3 gene variants from patients with Dravet syndrome decrease gene expression and enzyme activity. Brain Res Bull 2021; 170:81-89. [PMID: 33581311 DOI: 10.1016/j.brainresbull.2021.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 11/15/2022]
Abstract
Aberrant expression or dysfunction of a number of genes in the brain contributes to epilepsy, a common neurological disorder characterized by recurrent seizures. Local overexpression of arachidonate lipoxygenase 3 (ALOXE3), a key enzyme for arachidonic acid (AA) metabolic pathway, alleviates seizure severities. However, the relationship between the ALOXE3 gene mutation and epilepsy has not been reported until now. Here we firstly characterized the promoter of human ALOXE3 gene and found that the ALOXE3 promoter could drive luciferase gene expression in the human HEK-293 and SH-SY5Y cells. We then screened the ALOXE3 promoter region and all coding exons from those patients with Dravet syndrome and identified 5 variants c.-163T > C, c.-50C > G, c.-37G > A, c. + 228G > A and c. + 290G > T in the promoter region and one missense variant c.1939A > G (p.I647 V) in the exon. Of these variants in the promoter region, only -50C > G was a novel variant located on the transcriptional factor NFII-I binding element. Luciferase reporter gene analyses indicated that the c.-50C > G could decrease gene expression by preventing the TFII-I's binding. In addition, the variant p.I647 V was conserved among all analyzed species and located within the ALOXE3 functional domain for catalyzing its substrate. In cultured cell lines, overexpression of ALOXE3 significantly decreased the cellular AA levels and overexpression of ALOXE3-I647 V could restore the AA levels, suggesting that the p.I647 V mutant led to a decrease in enzyme activity. Taken together, the present study proposes that the identified ALOXE3 variants potentially contribute to the AA-pathway-mediated epileptogenesis, which should provide a novel avenue for clinical diagnosis of epilepsy.
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Affiliation(s)
- Mei-Mei Gao
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Hao-Ying Huang
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Si-Yu Chen
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Hui-Ling Tang
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Na He
- Department of Neurology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
| | - Wen-Cai Feng
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Ping Lu
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Fei Hu
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Hua-Juan Yan
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China
| | - Yue-Sheng Long
- Institute of Neuroscience and the Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, 250 Changang East Road, Guangzhou, 510260, China.
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3
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Hotz A, Kopp J, Bourrat E, Oji V, Komlosi K, Giehl K, Bouadjar B, Bygum A, Tantcheva-Poor I, Hellström Pigg M, Has C, Yang Z, Irvine AD, Betz RC, Zambruno G, Tadini G, Süßmuth K, Gruber R, Schmuth M, Mazereeuw-Hautier J, Jonca N, Guez S, Brena M, Hernandez-Martin A, van den Akker P, Bolling MC, Hannula-Jouppi K, Zimmer AD, Alter S, Vahlquist A, Fischer J. Meta-Analysis of Mutations in ALOX12B or ALOXE3 Identified in a Large Cohort of 224 Patients. Genes (Basel) 2021; 12:genes12010080. [PMID: 33435499 PMCID: PMC7826849 DOI: 10.3390/genes12010080] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 11/23/2022] Open
Abstract
The autosomal recessive congenital ichthyoses (ARCI) are a nonsyndromic group of cornification disorders that includes lamellar ichthyosis, congenital ichthyosiform erythroderma, and harlequin ichthyosis. To date mutations in ten genes have been identified to cause ARCI: TGM1, ALOX12B, ALOXE3, NIPAL4, CYP4F22, ABCA12, PNPLA1, CERS3, SDR9C7, and SULT2B1. The main focus of this report is the mutational spectrum of the genes ALOX12B and ALOXE3, which encode the epidermal lipoxygenases arachidonate 12-lipoxygenase, i.e., 12R type (12R-LOX), and the epidermis-type lipoxygenase-3 (eLOX3), respectively. Deficiency of 12R-LOX and eLOX3 disrupts the epidermal barrier function and leads to an abnormal epidermal differentiation. The type and the position of the mutations may influence the ARCI phenotype; most patients present with a mild erythrodermic ichthyosis, and only few individuals show severe erythroderma. To date, 88 pathogenic mutations in ALOX12B and 27 pathogenic mutations in ALOXE3 have been reported in the literature. Here, we presented a large cohort of 224 genetically characterized ARCI patients who carried mutations in these genes. We added 74 novel mutations in ALOX12B and 25 novel mutations in ALOXE3. We investigated the spectrum of mutations in ALOX12B and ALOXE3 in our cohort and additionally in the published mutations, the distribution of these mutations within the gene and gene domains, and potential hotspots and recurrent mutations.
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Affiliation(s)
- Alrun Hotz
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
| | - Julia Kopp
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
| | - Emmanuelle Bourrat
- Department of Dermatology, Reference Center for Rare Skin Diseases MAGEC, Saint Louis Hospital AP-HP, 75010 Paris, France;
| | - Vinzenz Oji
- Department of Dermatology and Venereology, Münster University Medical Center, 48149 Münster, Germany; (V.O.); (K.S.)
| | - Katalin Komlosi
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
| | - Kathrin Giehl
- Department of Dermatology and Allergy, University of Munich LMU, 80337 Munich, Germany;
| | - Bakar Bouadjar
- Department of Dermatology, CHU of Bab-El-Oued Algiers, Algiers 16008, Algeria;
| | - Anette Bygum
- Department of Dermatology, Odense University Hospital, 5000 Odense, Denmark;
- Department of Clinical Genetics, Odense University Hospital, 5000 Odense, Denmark
- Clinical Institute, University of Southern Denmark, 5000 Odense, Denmark
| | | | - Maritta Hellström Pigg
- Department of Clinical Genetics, Karolinska University Hospital, 17176 Stockholm, Sweden;
| | - Cristina Has
- Department of Dermatology, Medical Center-University of Freiburg, University of Freiburg, 79104 Freiburg, Germany;
| | - Zhou Yang
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
- Department of Dermatology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing 100045, China
| | - Alan D. Irvine
- Dermatology, Children’s Health Ireland and Clinical Medicine, Trinity College Dublin, D12 N512 Dublin, Ireland;
| | - Regina C. Betz
- Institute of Human Genetics, School of Medicine & University Hospital Bonn, University of Bonn, 53127 Bonn, Germany;
| | - Giovanna Zambruno
- Genodermatosis Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Gianluca Tadini
- Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, UOSD Pediatria ad Alta Intensità di Cura, 20122 Milan, Italy; (G.T.); (S.G.); (M.B.)
| | - Kira Süßmuth
- Department of Dermatology and Venereology, Münster University Medical Center, 48149 Münster, Germany; (V.O.); (K.S.)
| | - Robert Gruber
- Department of Dermatology, Venereology and Allergy, Medical University of Innsbruck, 6020 Innsbruck, Austria; (R.G.); (M.S.)
| | - Matthias Schmuth
- Department of Dermatology, Venereology and Allergy, Medical University of Innsbruck, 6020 Innsbruck, Austria; (R.G.); (M.S.)
| | - Juliette Mazereeuw-Hautier
- Reference Center for Rare Skin Diseases, Dermatology Department, CHU Larrey, Université Paul Sabatier, 31000 Toulouse, France;
| | - Natalie Jonca
- Department of Epidermis Differentiation and Rheumatoid Autoimmunity, UMR 1056 Inserm University Toulouse, Place du Dr Baylac, Hôpital Purpan, 31059 Toulouse, France;
| | - Sophie Guez
- Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, UOSD Pediatria ad Alta Intensità di Cura, 20122 Milan, Italy; (G.T.); (S.G.); (M.B.)
| | - Michela Brena
- Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, UOSD Pediatria ad Alta Intensità di Cura, 20122 Milan, Italy; (G.T.); (S.G.); (M.B.)
| | | | - Peter van den Akker
- Department of Genetics, University Medical Center Groningen, University of Groningen, 9700RB Groningen, The Netherlands;
| | - Maria C. Bolling
- Center for Blistering Diseases, Department of Dermatology, University Medical Center Groningen, University of Groningen, 9700RB Groningen, The Netherlands;
| | - Katariina Hannula-Jouppi
- ERN-Skin Center, Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital, 00029 HUS Helsinki, Finland;
- Folkhälsan Research Center, Helsinki, Finland and Research Programs Unit, Stem Cells and Metabolism Research Program, University of Helsinki, 00290 Helsinki, Finland
| | - Andreas D. Zimmer
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
| | - Svenja Alter
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
| | - Anders Vahlquist
- Department of Medical Sciences/Dermatology, Uppsala University, SE-751 85 Uppsala, Sweden;
| | - Judith Fischer
- Institute of Human Genetics, Medical Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (A.H.); (J.K.); (K.K.); (Z.Y.); (A.D.Z.); (S.A.)
- Correspondence:
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Mohamad J, Nanda A, Pavlovsky M, Peled A, Malchin N, Malovitski K, Pramanik R, Weissglas-Volkov D, Shomron N, McGrath J, Sprecher E, Sarig O. Phenotypic suppression of acral peeling skin syndrome in a patient with autosomal recessive congenital ichthyosis. Exp Dermatol 2020; 29:742-748. [PMID: 32618001 DOI: 10.1111/exd.14140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/01/2022]
Abstract
Autosomal recessive congenital ichthyosis (ARCI) manifests with generalized scaling often associated with generalized erythema. Mutations in at least 13 different genes have been reported to cause ARCI. Acral peeling skin syndrome (APSS) is a rare autosomal recessive disorder manifesting with peeling over the distal limbs and dorsal surfaces of hands and feet. APSS is mostly due to mutations in TGM5, encoding transglutaminase 5. Both ARCI and APSS are fully penetrant genetic traits. Here, we describe a consanguineous family in which one patient with mild ARCI was found to carry a homozygous mutation in ALOXE3 (c.1238G > A; p.Gly413Asp). The patient was also found to carry a known pathogenic homozygous mutation in TGM5 (c.1335G > C; p.Lys445Asn) but did not display acral peeling skin. Her uncle carried the same homozygous mutation in TGM5 but carried the ALOXE3 mutation in a heterozygous state and showed clinical features typical of APSS. Taken collectively, these observations suggested that the ALOXE3 mutation suppresses the clinical expression of the TGM5 variant. We hypothesized that ALOXE3 deficiency may affect the expression of a protein capable of compensating for the lack of TGM5 expression. Downregulation of ALOXE3 in primary human keratinocytes resulted in increased levels of corneodesmosin, which plays a critical role in the maintenance of cell-cell adhesion in the upper epidermal layers. Accordingly, ectopic corneodesmosin expression rescued the cell-cell adhesion defect caused by TGM5 deficiency in keratinocytes as ascertained by the dispase dissociation assay. The present data thus provide evidence for phenotypic suppression in a human hereditary skin disorder.
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Affiliation(s)
- Janan Mohamad
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Arti Nanda
- As'ad Al-Hamad Dermatology Center, Kuwait City, Kuwait
| | - Mor Pavlovsky
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Alon Peled
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Natalia Malchin
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Kiril Malovitski
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Rashida Pramanik
- St John's Institute of Dermatology, King's College London, London, UK
| | - Daphna Weissglas-Volkov
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Noam Shomron
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - John McGrath
- St John's Institute of Dermatology, King's College London, London, UK
| | - Eli Sprecher
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ofer Sarig
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
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Gào X, Zhang Y, Burwinkel B, Xuan Y, Holleczek B, Brenner H, Schöttker B. The associations of DNA methylation alterations in oxidative stress-related genes with cancer incidence and mortality outcomes: a population-based cohort study. Clin Epigenetics 2019; 11:14. [PMID: 30678711 PMCID: PMC6346508 DOI: 10.1186/s13148-018-0604-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/20/2018] [Indexed: 12/20/2022] Open
Abstract
Background Reactive oxygen species may be involved in epigenetic gene activation or silencing. We aimed to identify CpG sites, at which DNA methylation is related to urinary 8-isoprostane levels (biomarker of lipid peroxidation) and cancer or mortality outcomes. This investigation was based on a German, population-based cohort with linkage to cancer and mortality registry data (2000–2016). Results Blood DNA methylation in promoter regions of 519 genes, known to be involved in pathways from oxidative stress (OS) to cancer, was obtained at the cohort's baseline examination. Inverse associations of DNA methylation at cg25365794 (ALOXE3) and cg08862778 (MTOR) with 8-isoprostane levels were observed in a derivation set (n = 1000) and validated in two independent subsets of the cohort (n = 548 and n = 741). Multivariate regression models were used to evaluate the associations of DNA methylation at the two CpG sites with lung, colorectal, prostate, breast, and overall cancer incidence as well as CVD, cancer, and all-cause mortality. DNA methylation at cg25365794 (ALOXE3) was inversely associated with lung and prostate cancer incidence. DNA methylation at cg08862778 (MTOR) was associated with a 43% lower breast cancer incidence in the top vs. bottom tertile. Conclusion The finding for ALOXE3 may not be causal. As ALOXE3 is mainly expressed in skin tissue, the observed association might reflect the fact that both DNA methylation at the ALOXE3 gene and urinary 8-isoprostane concentrations depend on the level of OS in tissues. Contrarily, the finding for the MTOR gene and breast cancer is biologically plausible because the MTOR protein plays an important role in PI3K/Akt signaling, which is a pathway related to cancer development and cell senescence. Electronic supplementary material The online version of this article (10.1186/s13148-018-0604-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xīn Gào
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.,Network Aging Research, University of Heidelberg, Bergheimer Straße 20, 69115, Heidelberg, Germany
| | - Yan Zhang
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Barbara Burwinkel
- Division of Molecular Epidemiology, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.,Division Molecular Biology of Breast Cancer, University Women's Clinic, Heidelberg University, Voßstraße 9, 69115, Heidelberg, Germany
| | - Yang Xuan
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.,Network Aging Research, University of Heidelberg, Bergheimer Straße 20, 69115, Heidelberg, Germany
| | - Bernd Holleczek
- Saarland Cancer Registry, Krebsregister Saarland, Präsident-Baltz-Straße 5, 66119, Saarbrücken, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.,Network Aging Research, University of Heidelberg, Bergheimer Straße 20, 69115, Heidelberg, Germany.,Division of Preventive Oncology, German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Ben Schöttker
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany. .,Network Aging Research, University of Heidelberg, Bergheimer Straße 20, 69115, Heidelberg, Germany.
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AKBARI MT, ATAEI-KACHOUI M. Triallelic Inheritance of TGM1 and ALOXE3 Mutations Associated with Severe Phenotype of Ichtyosis in an Iranian Family - A Case Report. Iran J Public Health 2015; 44:1004-7. [PMID: 26576379 PMCID: PMC4645748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Lamellar ichthyosis is one form of congenital autosomal recessive ichthyosis. To date, seven causative genes for ARCI have been identified. To understand further the genetic spectrum of the disease, we analyzed a four-generation Iranian family with ARCI that had observable inheritance. Exome sequencing data for one of the affected individuals with ichthyosis from a consanguineous Iranian family was analyzed. Potential candidate mutations were analyzed in additional family members to determine if the putative mutation segregated with disease status. A novel homozygous mutation (p.D414V) in TGM1 and rs3027232 in ALOXE3 gene in heterozygous form were identified which segregated with disease status in the family. Bioinformatic studies with Polyphen-2 and SIFT showed that these variants are damaging. We identified a possible triallelic inheritance in this study. Moreover, this paper illustrates how advances in genome sequencing technologies could be utilized to rapidly elucidate the molecular basis of inherited skin diseases which can be caused by mutations in multiple disease genes.
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Affiliation(s)
- Mohammad Taghi AKBARI
- Dept. of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran, Tehran Medical Genetics Laboratory, Taleghani Ave, Tehran, Iran,Corresponding Author:
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