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Zhang B, Yang K, Zhang Y, Lou G, Qi N, Lei X, Wang F, Kang B, Liao S. [Application of whole exome sequencing for the inferential analysis of recessive genetic disease carrier status for couples with a child died of Primary immunodeficiency]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2024; 41:134-139. [PMID: 38311549 DOI: 10.3760/cma.j.cn511374-20221220-00879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
OBJECTIVE To explore the value of whole exome sequencing for the inferential analysis of recessive genetic disease carrier status for couples with a child died of Primary immunodeficiency (PID). METHODS Clinical data was collected from four couples with a childbearing history of PID who had sought genetic counseling and undergone genetic testing at Henan Provincial People's Hospital from February 2017 to December 2021. Whole exome sequencing (WES) was performed on both partners of each couple, and candidate variants were validated by Sanger sequencing and fluorescent quantitative PCR. Prenatal diagnosis was conducted on fetuses of these couples after confirming the variants. RESULTS A total of six variants were detected in four genes including IL2RG, BTK, CYBB, and DUOX2. Among these, the c.1265G>A and c.3329G>A variants of the DUOX2 gene and the c.676C>T variant of the IL2RG gene were previously known as pathogenic variants. On the other hand, the Exon5_8del variant of the IL2RG gene, the c.184_185delAC variant of the BTK gene, and the c.472A>T variant of the CYBB gene were unreported previously. Based on the guidelines from the American College of Medical Genetics and Genomics, the IL2RG: Exon5_8del, BTK: c.184_185delAC and CYBB: c.472A>T variants were classified as likely pathogenic (PVS1+PM2_Supporting+PP4).Prenatal diagnosis was conducted for three couples during their subsequent pregnancies, and the results revealed that the fetuses had the wild-type genotypes at the c.184_185 position of the BTK gene, the c.472 position of the CYBB gene, and the c.676 position of the IL2RG gene. Follow-up examinations one year after birth has found no abnormality in the infants. CONCLUSION WES is an important tool to infer and analyze the carrier status for couples who had given births to children died of PID and improve the positive detection rate.
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Affiliation(s)
- Bing Zhang
- Henan Provincial People's Hospital, Institute of Medical Genetics of Henan Provincial People's Hospital, Zhengzhou, Henan 450003, China.
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Yang Y, Hua Y, Zheng H, Jia R, Ye Z, Su G, Gu Y, Zhan K, Tang K, Qi S, Wu H, Qin S, Huang S. Biomarkers prediction and immune landscape in ulcerative colitis: Findings based on bioinformatics and machine learning. Comput Biol Med 2024; 168:107778. [PMID: 38070204 DOI: 10.1016/j.compbiomed.2023.107778] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/02/2023] [Accepted: 11/28/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Ulcerative colitis (UC) presents diagnostic and therapeutic difficulties. The primary objective of this study is to identify efficacious biomarkers for diagnosis and treatment, as well as acquire a deeper understanding of the immuneological characteristics associated with the disease. METHODS Datasets relating to UC were obtained from GEO database. Among these, three datasets were merged to create a metadata for bioinformatics analysis and machine learning. Additionally, one dataset specifically utilized for external validation. Least absolute shrinkage and selection operator (LASSO) and random forest (RF) were employed to screen signature genes. The artificial neural network (ANN) model and receiver operating characteristic (ROC) curve were used to assess the diagnostic performance of signature genes. The single sample gene set enrichment analysis (ssGSEA) was applied to reveal the immune landscape. Finally, the relationship between the signature genes, immune infiltration, and clinical characteristics was investigated through correlation analysis. RESULT By intersecting the result of LASSO, RF and WGCNA, 8 signature genes were identified, including S100A8, IL-1B, CXCL1, TCN1, MMP10, GREM1, DUOX2 and SLC6A14. The biological progress of this gene mostly encompasses acute inflammatory response, aggregation and chemotaxis of leukocyte, and response to lipopolysaccharide by mediating IL-17 signaling pathway, NF-kappa B signaling pathway, TNF signaling pathway, NOD-like receptor signaling pathway. Immune infiltration analysis shows 25 immune cells are significantly elevated in UC samples. Moreover, these signature genes exhibit a strong correlation with various immune cells and a mild to moderate correlation with the Mayo score. CONCLUSION S100A8, IL-1B, CXCL1, TCN1, MMP10, GREM1, DUOX2 and SLC6A14 have been identified as credible potential biomarkers for the diagnosis and therapy of UC. The immune response mediated by these signature biomarkers plays a crucial role in the occurrence and advancement of UC by means of the reciprocal interaction between the signature biomarkers and immune-infiltrated cells.
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Affiliation(s)
- Yuanming Yang
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Yiwei Hua
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Huan Zheng
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Rui Jia
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Zhining Ye
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Guifang Su
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Yueming Gu
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Kai Zhan
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Kairui Tang
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Shuhao Qi
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China
| | - Haomeng Wu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China; Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou 510120, China
| | - Shumin Qin
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China; Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou 510120, China.
| | - Shaogang Huang
- Dongguan Hospital of Guangzhou University of Chinese Medicine, Dongguan, 523000, China; The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China; Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou, 510120, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou 510120, China; Yang Chunbo academic experience inheritance studio of Guangdong provincial hospital of Chinese Medicine, Guangzhou, 510006, China.
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Zhou D, Yang R, Huang X, Huang X, Yang X, Mao H, Yang J, Zhao Z. Results of neonatal screening for congenital hypothyroidism and hyperphenylalaninemia in Zhejiang province from 1999 to 2022. Zhejiang Da Xue Xue Bao Yi Xue Ban 2023; 52:683-692. [PMID: 38105685 PMCID: PMC10764193 DOI: 10.3724/zdxbyxb-2023-0473] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
OBJECTIVES To analyze the results of neonatal screening for congenital hypothyroidism (CH) and hyperphenylalaninemia (HPA) in Zhejiang province from 1999 to 2022. METHODS A total of 11 922 318 newborns were screened from September 1999 and December 2022 in Zhejiang province. The blood thyroid stimulating hormone (TSH) levels were measured by a fluorescence method and blood phenylalanine (Phe) levels were measured by fluorescence method or tandem mass spectrometry. TSH≥9 μIU/mL was considered positive for CH, while Phe>120 μmol/L and/or Phe/Tyr ratio>2.0 were considered positive for HPA. The positive newborns in screening were recalled, and the gene variations were detected by high-throughput sequencing and MassARRAY tests. RESULTS The overall neonatal screening rate during 1999-2022 was 89.41% (11 922 318/13 333 929) and the screening rate was increased from 6.46% in 1999 to 100.0% in 2022. A total of 8924 cases of CH were diagnosed among screened newborns with an incidence rate of 1/1336. A total of 563 cases of HPA were diagnosed, including 508 cases of classic phenylketonuria (cPKU) and 55 cases of tetrahydrobiopterin deficiency (BH4D), with an incidence rate of 1/21 176. Ninety-seven out of 8924 cases of CH underwent genetic analysis. Gene mutations were detected in 9 CH related genes, the highest frequency mutations were found in DUOX2 gene (69.0%) with c.3329G>A (p.R1110Q) (18.2%) and c.1588A>T (p.K530X) (17.3%) as the hotspot mutations. There were 81 PAH gene variants detected in a total of 250 cases of cPKU, and c728G>A (p.R243Q) (24.4%), c.721C>T (p.R241C) (15.0%) were the hotspot mutations. Meanwhile 7 novel variants in PAH gene were detected: c.107C>A (p.S36*), c.137G>T (p.G46V), c.148A>G(p.K50E), c.285C>T (p.I95I), c.843-10delTTCC, exon4-7del and c.1066-2A>G. There were 12 PTS gene variants detected in 36 cases of BH4D, and c.259C>T (p.P87S) (31.9%) was the hotspot mutation. CONCLUSIONS The incident of CH has increased from 1999 to 2022 in Zhejiang province, and it is higher than that of national and global levels; while the incidence of HPA is similar to the national average. DUOX2 gene variation is the most common in CH patients; c.728G>A (p.R243Q) is the hotspot mutation in cPKU patients, while c.259C>T (p.P87S) is the hotspot mutation in BH4D patients.
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Affiliation(s)
- Duo Zhou
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China.
| | - Rulai Yang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Xinwen Huang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Xiaolei Huang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Xin Yang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Huaqing Mao
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Jianbin Yang
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Zhengyan Zhao
- Department of Genetics and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China.
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La Rosa G, Sozio C, Pipicelli L, Raia M, Palmiero A, Santillo M, Damiano S. Antioxidant, Anti-Inflammatory and Pro-Differentiative Effects of Chlorogenic Acid on M03-13 Human Oligodendrocyte-like Cells. Int J Mol Sci 2023; 24:16731. [PMID: 38069054 PMCID: PMC10706857 DOI: 10.3390/ijms242316731] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Chlorogenic acid (CGA), a polyphenol found mainly in coffee and tea, exerts antioxidant, anti-inflammatory and anti-apoptotic effects at the gastrointestinal level. However, although CGA is known to cross the blood-brain barrier (BBB), its effects on the CNS are still unknown. Oligodendrocytes (OLs), the myelin-forming cells in the CNS, are the main target in demyelinating neuroinflammatory diseases such as multiple sclerosis (MS). We evaluated the antioxidant, anti-inflammatory and anti-apoptotic roles of CGA in M03-13, an immortalized human OL cell line. We found that CGA reduces intracellular superoxide ions, mitochondrial reactive oxygen species (ROS) and NADPH oxidases (NOXs) /dual oxidase 2 (DUOX2) protein levels. The stimulation of M03-13 cells with TNFα activates the nuclear factor kappa-light-chain-enhancer of activated B cell (NF-kB) pathway, leading to an increase in superoxide ion, NOXs/DUOX2 and phosphorylated extracellular regulated protein kinase (pERK) levels. In addition, tumor necrosis factor alpha (TNF-α) stimulation induces caspase 8 activation and the cleavage of poly-ADP-ribose polymerase (PARP). All these TNFα-induced effects are reversed by CGA. Furthermore, CGA induces a blockade of proliferation, driving cells to differentiation, resulting in increased mRNA levels of myelin basic protein (MBP) and proteolipid protein (PLP), which are major markers of mature OLs. Overall, these data suggest that dietary supplementation with this polyphenol could play an important beneficial role in autoimmune neuroinflammatory diseases such as MS.
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Affiliation(s)
- Giuliana La Rosa
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli “Federico II”, 80131 Napoli, Italy; (G.L.R.); (C.S.); (L.P.); (A.P.); (S.D.)
| | - Concetta Sozio
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli “Federico II”, 80131 Napoli, Italy; (G.L.R.); (C.S.); (L.P.); (A.P.); (S.D.)
| | - Luca Pipicelli
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli “Federico II”, 80131 Napoli, Italy; (G.L.R.); (C.S.); (L.P.); (A.P.); (S.D.)
| | - Maddalena Raia
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli “Federico II”, 80131 Napoli, Italy;
| | - Anna Palmiero
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli “Federico II”, 80131 Napoli, Italy; (G.L.R.); (C.S.); (L.P.); (A.P.); (S.D.)
| | - Mariarosaria Santillo
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli “Federico II”, 80131 Napoli, Italy; (G.L.R.); (C.S.); (L.P.); (A.P.); (S.D.)
| | - Simona Damiano
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli “Federico II”, 80131 Napoli, Italy; (G.L.R.); (C.S.); (L.P.); (A.P.); (S.D.)
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Poinsignon L, Chissey A, Ajjaji A, Hernandez I, Vignaud ML, Ferecatu I, Fournier T, Beaudeux JL, Zerrad-Saadi A. Placental cartography of NADPH oxidase (NOX) family proteins: Involvement in the pathophysiology of preeclampsia. Arch Biochem Biophys 2023; 749:109787. [PMID: 37866451 DOI: 10.1016/j.abb.2023.109787] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/29/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
The placenta is an essential organ for fetal development. During the first trimester, it undergoes dramatic changes as it develops in an environment poor in oxygen (around 2-3%). From about 10 gestational weeks, oxygen levels increase to 8% in the intervillous chamber. These changes are accompanied by modulation of the activity of NADPH oxidase, a major source of production of reactive oxygen species in the first trimester of pregnancy. The NOX complex is composed of seven different proteins (NOX1-5 and DUOX1-2) whose placental involvements during physiological and pathological pregnancies are largely unknown. The aim of the study was to produce a cartography of NOX family proteins, in terms of RNA, protein expression, and localization during physiological pregnancy and in the case of preeclampsia (PE), in a cohort of early-onset PE (n = 11) and late-onset PE (n = 7) cases. NOX family proteins were mainly expressed in trophoblastic cells (NOX4-5, DUOX1) and modulated during physiological pregnancy. NOX4 underwent an unexpected and hitherto unreported nuclear translocation at term. In the case of PE, two groups stood out: NOX1-3, superoxide producers, were down-regulated (p < 0.05) while NOX4-DUOX1, hydrogen peroxide producers, were up-regulated (p < 0.05), compared to the control group. Mapping of placental NOX will constitute a reference and guide for future investigations concerning its involvement in the pathophysiology of PE.
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Affiliation(s)
- Léa Poinsignon
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | - Audrey Chissey
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | - Ayoub Ajjaji
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | | | | | - Ioana Ferecatu
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France
| | | | - Jean-Louis Beaudeux
- Université Paris-Cité, Inserm, 3PHM, F-75006, Paris, France; Service Biochimie, AP-HP, Hôpital Necker Enfants Malades, F-75006, Paris, France
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Nazari B, Jaquet V, Krause KH. NOX family NADPH oxidases in mammals: Evolutionary conservation and isoform-defining sequences. Redox Biol 2023; 66:102851. [PMID: 37595375 PMCID: PMC10458973 DOI: 10.1016/j.redox.2023.102851] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023] Open
Abstract
NADPH oxidases are superoxide-producing enzymes that play a role in host defense, biosynthetic pathways, as well as cellular signaling. Humans have 7 NOX isoforms (NOX1-5, DUOX1,2), while mice and rats lack NOX5 and therefore have only 6 NOX isoforms. Whether all human NOX isoforms or their subunits (CYBA, NCF1, 2, 4, NOXO1, NOXA1, DUOXA1, 2) are present and conserved in other mammalian species is unknown. In this study, we have analyzed the conservation of the NOX family during mammalian evolution using an in-silico approach. Complete genomic sequences of 164 mammalian species were available. The possible absence of genes coding for NOX isoforms was investigated using the NCBI orthologs database followed by manual curation. Conservation of a given NOX isoform during mammalian evolution was evaluated by multiple alignment and identification of highly conserved sequences. There was no convincing evidence for the absence of NOX2, 3, 4, and DUOX1, 2 in all the available mammalian genome. However, NOX5 was absent in 27 of 31 rodent, in 2 of 3 lagomorph and in 2 out of 18 bat species. NOX1 was absent in all sequenced Afrotheria and Monotremata species, as well as in 3 of 18 bat species. NOXA1 was absent in all Afrotheria and in 3 out of 4 Eulipotyphla species. We also investigated amino acid sequence conservation among given NOX isoforms. Highly conserved sequences were observed for most isoforms except for NOX5. Interestingly, the highly conserved region of NOX2 sequence was relatively small (11 amino acids), as compared to NOX1, 3, 4. The highly conserved domains are different from one NOX isoform to the other, raising the possibility of distinct evolutionary conserved functional domains. Our results shed a new light on the essentiality of different NOX isoforms. We also identified isoform-defining sequences, i.e., hitherto undescribed conserved domains within specific NOX isoforms.
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Affiliation(s)
- Bahareh Nazari
- Department of Pathology & Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Vincent Jaquet
- Department of Pathology & Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland; READS Unit, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Karl-Heinz Krause
- Department of Pathology & Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
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Tian Z, Guo X, Michaud JP, Zha M, Zhu L, Liu X, Liu X. The gut microbiome of Helicoverpa armigera enhances immune response to baculovirus infection via suppression of Duox-mediated reactive oxygen species. Pest Manag Sci 2023; 79:3611-3621. [PMID: 37184157 DOI: 10.1002/ps.7546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Baculoviruses such as Helicoverpa armigera nucleopolyhedrovirus (HearNPV) infect their lepidopteran hosts via the larval midgut where they interact with host immune responses and gut microbiota. Here we demonstrate that gut microbiota proliferating in response to HearNPV infection promote larval immune responses which impede the infection process. RESULTS The microbial load of the larval midgut increased following HearNPV infection, due primarily to increases in Enterococcus spp., whereas most other bacterial genera declined, with Firmicutes replacing Proteobacteria as the dominant phylum. Injection of abdominal prolegs of infected larvae with H2 O2 promoted viral infection, diminished microbial abundance, and accelerated larval death, mimicking the effects of HearNPV infection, which up-regulated dual oxidase (Duox) expression, increasing H2 O2 levels in the midgut. Knockdown of Duox with RNAi reduced H2 O2 production in the guts of infected larvae, increased bacterial loads, decreased viral replication, and improved larval survival. Germ-free larvae were more susceptible to HearNPV than control larvae, exhibiting greater expression of Duox, higher levels of H2 O2 , and lower survival. Replenishment of gut bacteria in germ-free larvae restored the base-line immunity to HearNPV observed in normal larvae. Enterococcus spp., Levilactobacillus brevis, and Lactobacillus sp. bacteria were isolated and implicated in immunity restoration via replenishment in germ-free larvae. CONCLUSION These findings illuminate how gut microbiota play important roles in larval defense against oral baculovirus infection, and suggest novel avenues of investigation to enhance the efficacy of baculoviruses and improve control of lepidopteran pests. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Zhiqiang Tian
- Department of Entomology, MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Xi Guo
- Department of Entomology, MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - J P Michaud
- Department of Entomology, Kansas State University, Agricultural Research Center-Hays, Hays, KS, USA
| | - Meng Zha
- Department of Entomology, MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Lin Zhu
- Department of Entomology, MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Xiaoming Liu
- Department of Entomology, MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
| | - Xiaoxia Liu
- Department of Entomology, MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China
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Guo L, Tang J, Tang M, Luo S, Zhou X. Reactive oxygen species are regulated by immune deficiency and Toll pathways in determining the host specificity of honeybee gut bacteria. Proc Natl Acad Sci U S A 2023; 120:e2219634120. [PMID: 37556501 PMCID: PMC10438842 DOI: 10.1073/pnas.2219634120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 06/26/2023] [Indexed: 08/11/2023] Open
Abstract
Host specificity is observed in gut symbionts of diverse animal lineages. But how hosts maintain symbionts while rejecting their close relatives remains elusive. We use eusocial bees and their codiversified gut bacteria to understand host regulation driving symbiotic specificity. The cross-inoculation of bumblebee Gilliamella induced higher prostaglandin in the honeybee gut, promoting a pronounced host response through immune deficiency (IMD) and Toll pathways. Gene silencing and vitamin C treatments indicate that reactive oxygen species (ROS), not antimicrobial peptides, acts as the effector in inhibiting the non-native strain. Quantitative PCR and RNAi further reveal a regulatory function of the IMD and Toll pathways, in which Relish and dorsal-1 may regulate Dual Oxidase (Duox) for ROS production. Therefore, the honeybee maintains symbiotic specificity by creating a hostile gut environment to exotic bacteria, through differential regulation of its immune system, reflecting a co-opting of existing machinery evolved to combat pathogens.
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Affiliation(s)
- Lizhen Guo
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing100083, People’s Republic of China
- Sanya Institute of China Agricultural University, Sanya572000, People’s Republic of China
| | - Junbo Tang
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing100083, People’s Republic of China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing100083, People’s Republic of China
| | - Min Tang
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing100083, People’s Republic of China
- Department of Biological Sciences, Xi’an Jiaotong-Liverpool University, Suzhou215100, People’s Republic of China
| | - Shiqi Luo
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing100083, People’s Republic of China
| | - Xin Zhou
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing100083, People’s Republic of China
- Sanya Institute of China Agricultural University, Sanya572000, People’s Republic of China
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Huang ZK, Li F, Chen YZ, Liu JM, Liu JJ, Lan SZ. [Key Prediction Genes of Nasopharyngeal Carcinoma:Screening Based on Systematic Bioinformatics and Validation by Cell Experiments]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2023; 45:597-607. [PMID: 37654140 DOI: 10.3881/j.issn.1000-503x.15503] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Objective To screen out the potential prediction genes for nasopharyngeal carcinoma(NPC)from the gene microarray data of NPC samples and then verify the genes by cell experiments.Methods The NPC dataset was downloaded from Gene Expression Omnibus,and limma package was employed to screen out the differentially expressed genes.Weighted correlation network analysis package was used for weighted gene co-expression network analysis,and Venn diagram was drawn to find the common genes.The gene ontology annotation and Kyoto encyclopedia of genes and genomes pathway enrichment were then performed for the common genes.The biomarkers for NPC were further explored by protein-protein interaction network,LASSO regression,and non-parametric tests.Real-time quantitative PCR and Western blotting were employed to determine the mRNA and protein levels of key predictors of NPC,so as to verify the screening results.Results There were 622 up-regulated genes and 351 down-regulated genes in the GSE12452 dataset.A total of 116 common genes were obtained by limma analysis and weighted gene co-expression network analysis.The common genes were mainly involved in the biological processes of cell proliferation and regulation and regulation of intercellular adhesion.They were mainly enriched in Rap1,Ras,and tumor necrosis factor signaling pathways.Six key genes were screened out,encoding angiopoietin-2(ANGPT2),dual oxidase 2(DUOX2),coagulation factor Ⅲ(F3),interleukin-15(IL-15),lipocalin-2,and retinoic acid receptor-related orphan receptor B(RORB).Real-time quantitative PCR and Western blotting showed that the NPC cells had up-regulated mRNA and protein levels of ANGPT2 and IL-15 and down-regulated mRNA and protein levels of DUOX2,F3,and RORB,which was consistent with the results predicted by bioinformatics.Conclusion ANGPT2,DUOX2,F3,IL-15 and RORB are potential predictive molecular markers and therapeutic targets for NPC,which may be involved in Rap1,Ras,tumor necrosis factor and other signaling pathways.
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Affiliation(s)
- Zi-Kui Huang
- Department of Traditional Chinese Medicine,Ganzhou People's Hospital,Ganzhou,Jiangxi 341000,China
| | - Fei Li
- Department of Traditional Chinese Medicine,Ganzhou People's Hospital,Ganzhou,Jiangxi 341000,China
| | - Yue-Zhou Chen
- Shenzhen Clinical School of Medicine,Guangzhou University of Chinese Medicine,Shenzhen,Guangdong 518116,China
| | - Jia-Ming Liu
- The Second Clinical Medical College,Guangzhou University of Chinese Medicine,Guangzhou 510405,China
| | - Jia-Jun Liu
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation,Guangzhou University of Chinese Medicine,Guangzhou 510405,China
| | - Su-Zhen Lan
- Department of Oncology,Ganzhou People's Hospital,Ganzhou,Jiangxi 341000,China
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10
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Chen C, Lan B, Xie G, Liu Z. Analysis and identification of ferroptosis-related genes in ulcerative colitis. Scand J Gastroenterol 2023; 58:1422-1433. [PMID: 37530128 DOI: 10.1080/00365521.2023.2240927] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/21/2023] [Indexed: 08/03/2023]
Abstract
BACKGROUND Previous studies have shown that ferroptosis is associated with the pathogenesis of ulcerative colitis (UC). Therefore, this study aimed to identify key ferroptosis-related genes (FRGs) associated with the diagnosis of UC. METHODS UC-related expression datasets were downloaded from the Gene Expression Omnibus (GEO) database. First, Weighted Gene Co-expression Network Analysis (WGCNA) was used to identify UC-related genes (UCRGs). Differentially expressed genes (DEGs) between normal and UC groups were screened in GSE87466, and DEGs were subjected to an intersection analysis with FRGs and UCRGs to obtain ferroptosis-related DEGs (FR DEGs). Then a protein-protein interaction (PPI) network was constructed for FR DEGs. The hub genes were extracted based on the degree, Maximum Neighborhood Component (MNC), closeness, and Maximal Clique Centrality (MCC). Biomarkers with diagnostic values were screened by support vector machine (SVM) and the least absolute shrinkage and selection operator (LASSO) algorithms. Next, the infiltration of immune cells was compared between UC and normal groups, and the correlation between different immune cells and diagnostic genes was analyzed. The biological functions, classical pathways, and intermolecular interaction networks of diagnostic genes were characterized utilizing ingenuity pathway analysis (IPA). Finally, a TF-mRNA network was constructed and potential small-molecule compounds were screened. RESULTS Thirty-six FR DEGs were obtained, and these were enriched in biological processes such as positive regulation of cytokine production, cytokine-mediated signalling pathway, long-chain fatty acid-CoA ligase activity, etc. Among 18 hub genes, five genes (ALOX5, TIMP1, TNFAIP3, SOCS1, DUOX2) were captured with diagnostic values for UC, and they displayed significant differences between UC and normal groups. Sixteen immune cell infiltrates were significantly different between UC and normal groups, such as activated dendritic cells and resting dendritic cells. TNFAIP3 and ALOX5 were positively correlated with neutrophils, and TIMP1, SOCS1, ALOX5, and DUOX2 were negatively correlated with M2 macrophages. IPA showed that diagnostic genes were related to 43 function modules and activated 17 pathways. The constructed TF-mRNA regulatory network comprised three diagnostic genes and 17 differentially expressed TFs. Potential small-molecule compounds including helveticoside and cymarin were identified. CONCLUSION Our findings yielded several promising FRGs for UC, providing a scientific reference for further studies on the pathogenesis of UC.
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Affiliation(s)
- Chen Chen
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
| | - Bo Lan
- Department of Pharmacy, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
| | - Guanghong Xie
- Department of Emergency Internal Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
| | - Zhaoyang Liu
- Department of Emergency Internal Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
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11
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Hazime H, Ducasa GM, Santander AM, Brito N, González EE, Ban Y, Kaunitz J, Akiba Y, Fernández I, Burgueño JF, Abreu MT. Intestinal Epithelial Inactivity of Dual Oxidase 2 Results in Microbiome-Mediated Metabolic Syndrome. Cell Mol Gastroenterol Hepatol 2023; 16:557-572. [PMID: 37369278 PMCID: PMC10468370 DOI: 10.1016/j.jcmgh.2023.06.009] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND & AIMS Metabolic syndrome (MetS) is characterized by obesity, glucose intolerance, and hepatic steatosis. Alterations in the gut microbiome play important roles in the development of MetS. However, the mechanisms by which this occurs are poorly understood. Dual oxidase 2 (DUOX2) is an antimicrobial reduced nicotinamide adenine dinucleotide phosphate oxidase expressed in the gut epithelium. Here, we posit that epithelial DUOX2 activity provides a mechanistic link between the gut microbiome and the development of MetS. METHODS Mice carrying an intestinal epithelial-specific deletion of dual oxidase maturation factor 1/2 (DA IEC-KO), and wild-type littermates were fed a standard diet and killed at 24 weeks. Metabolic alterations were determined by glucose tolerance, lipid tests, and body and organ weight measurements. DUOX2 activity was determined by Amplex Red. Intestinal permeability was determined by fluorescein isothiocyanate-dextran, microbial translocation assessments, and portal vein lipopolysaccharide measurements. Metagenomic analysis of the stool microbiome was performed. The role of the microbiome was assessed in antibiotic-treated mice. RESULTS DA IEC-KO males showed increased body and organ weights accompanied by glucose intolerance and increased plasma lipid and liver enzyme levels, and increased adiposity in the liver and adipose tissue. Expression of F4/80, CD68, uncoupling protein 1, carbohydrate response element binding protein, leptin, and adiponectin was altered in the liver and adipose tissue of DA IEC-KO males. DA IEC-KO males produced less epithelial H2O2, had altered relative abundance of Akkermansiaceae and Lachnospiraceae in stool, and showed increased portal vein lipopolysaccharides and intestinal permeability. Females were protected from barrier defects and MetS, despite producing less H2O2. Antibiotic depletion abrogated all MetS phenotypes observed. CONCLUSIONS Intestinal epithelial inactivity of DUOX2 promotes MetS in a microbiome-dependent manner.
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Affiliation(s)
- Hajar Hazime
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida; Department of Microbiology and Immunology, University of Miami-Miller School of Medicine, Miami, Florida
| | - G Michelle Ducasa
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida
| | - Ana M Santander
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida
| | - Nivis Brito
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida
| | - Eddy E González
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida
| | - Yuguang Ban
- Biostatistics and Bioinformatics Shared Resource, Sylvester Comprehensive Cancer Center, University of Miami-Miller School of Medicine, Miami, Florida
| | - Jonathan Kaunitz
- Medical Service and Research Services, VA Greater Los Angeles Healthcare System, Los Angeles, California; Medical Service, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Yasutada Akiba
- Medical Service and Research Services, VA Greater Los Angeles Healthcare System, Los Angeles, California; Medical Service, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Irina Fernández
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida
| | - Juan F Burgueño
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida
| | - Maria T Abreu
- Division of Gastroenterology, Department of Medicine, University of Miami-Miller School of Medicine, Miami, Florida; Department of Microbiology and Immunology, University of Miami-Miller School of Medicine, Miami, Florida.
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12
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Wang Y, Huang J, Zhang J, Wang F, Tang X. Identifying biomarkers associated with the diagnosis of ulcerative colitis via bioinformatics and machine learning. Math Biosci Eng 2023; 20:10741-10756. [PMID: 37322958 DOI: 10.3934/mbe.2023476] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
BACKGROUND Ulcerative colitis (UC) is an idiopathic inflammatory disease with an increasing incidence. This study aimed to identify potential UC biomarkers and associated immune infiltration characteristics. METHODS Two datasets (GSE87473 and GSE92415) were merged to obtain 193 UC samples and 42 normal samples. Using R, differentially expressed genes (DEGs) between UC and normal samples were filtered out, and their biological functions were investigated using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses. Promising biomarkers were identified using least absolute shrinkage selector operator regression and support vector machine recursive feature elimination, and their diagnostic efficacy was evaluated through receiver operating characteristic (ROC) curves. Finally, CIBERSORT was used to investigate the immune infiltration characteristics in UC, and the relationship between the identified biomarkers and various immune cells was examined. RESULTS We found 102 DEGs, of which 64 were significantly upregulated, and 38 were significantly downregulated. The DEGs were enriched in pathways associated with interleukin-17, cytokine-cytokine receptor interaction and viral protein interactions with cytokines and cytokine receptors, among others. Using machine learning methods and ROC tests, we confirmed DUOX2, DMBT1, CYP2B7P, PITX2 and DEFB1 to be essential diagnostic genes for UC. Immune cell infiltration analysis revealed that all five diagnostic genes were correlated with regulatory T cells, CD8 T cells, activated and resting memory CD4 T cells, activated natural killer cells, neutrophils, activated and resting mast cells, activated and resting dendritic cells and M0, M1 and M2 macrophages. CONCLUSIONS DUOX2, DMBT1, CYP2B7P, PITX2 and DEFB1 were identified as prospective biomarkers for UC. A new perspective on understanding the progression of UC may be provided by these biomarkers and their relationship with immune cell infiltration.
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Affiliation(s)
- Yuedan Wang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Jinke Huang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Jiaqi Zhang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Fengyun Wang
- Institute of Digestive Diseases, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Xudong Tang
- China Academy of Chinese Medical Sciences, Beijing 100091, China
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13
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Ansari-Pour N, Samur M, Flynt E, Gooding S, Towfic F, Stong N, Estevez MO, Mavrommatis K, Walker B, Morgan G, Munshi N, Avet-Loiseau H, Thakurta A. Whole-genome analysis identifies novel drivers and high-risk double-hit events in relapsed/refractory myeloma. Blood 2023; 141:620-633. [PMID: 36223594 PMCID: PMC10163277 DOI: 10.1182/blood.2022017010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 11/20/2022] Open
Abstract
Large-scale analyses of genomic data from patients with newly diagnosed multiple myeloma (ndMM) have been undertaken, however, large-scale analysis of relapsed/refractory MM (rrMM) has not been performed. We hypothesize that somatic variants chronicle the therapeutic exposures and clonal structure of myeloma from ndMM to rrMM stages. We generated whole-genome sequencing (WGS) data from 418 tumors (386 patients) derived from 6 rrMM clinical trials and compared them with WGS from 198 unrelated patients with ndMM in a population-based case-control fashion. We identified significantly enriched events at the rrMM stage, including drivers (DUOX2, EZH2, TP53), biallelic inactivation (TP53), noncoding mutations in bona fide drivers (TP53BP1, BLM), copy number aberrations (CNAs; 1qGain, 17pLOH), and double-hit events (Amp1q-ISS3, 1qGain-17p loss-of-heterozygosity). Mutational signature analysis identified a subclonal defective mismatch repair signature enriched in rrMM and highly active in high mutation burden tumors, a likely feature of therapy-associated expanding subclones. Further analysis focused on the association of genomic aberrations enriched at different stages of resistance to immunomodulatory agent (IMiD)-based therapy. This analysis revealed that TP53, DUOX2, 1qGain, and 17p loss-of-heterozygosity increased in prevalence from ndMM to lenalidomide resistant (LENR) to pomalidomide resistant (POMR) stages, whereas enrichment of MAML3 along with immunoglobulin lambda (IGL) and MYC translocations distinguished POM from the LEN subgroup. Genomic drivers associated with rrMM are those that confer clonal selective advantage under therapeutic pressure. Their role in therapy evasion should be further evaluated in longitudinal patient samples, to confirm these associations with the evolution of clinical resistance and to identify molecular subsets of rrMM for the development of targeted therapies.
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Affiliation(s)
- Naser Ansari-Pour
- Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- National Institute for Health and Care Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Mehmet Samur
- Dana-Farber Cancer Institute, Boston, MA
- Harvard T.H. Chan School of Public Health, Boston, MA
| | - Erin Flynt
- Translational Medicine, Bristol Myers Squibb, Summit, NJ
| | - Sarah Gooding
- Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- National Institute for Health and Care Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Department of Haematology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | | | | | - Maria Ortiz Estevez
- Predictive Sciences, BMS Center for Innovation and Translational Research Europe, A Bristol Myers Squibb Company, Sevilla, Spain
| | | | - Brian Walker
- Melvin and Bren Simon Comprehensive Cancer Center, Division of Hematology Oncology, Indiana University, Indianapolis, IN
| | - Gareth Morgan
- Perlmutter Cancer Center, NYU Langone Medical Center, New York, NY
| | - Nikhil Munshi
- Dana-Farber Cancer Institute, Boston, MA
- VA Boston Healthcare System, West Roxbury, MA
- Harvard Medical School, Boston, MA
| | | | - Anjan Thakurta
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
- Bristol Myers Squibb, Summit, NJ
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Disease, University of Oxford, Oxford, United Kingdom
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14
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Habibovic A, Hristova M, Morris CR, Lin MCJ, Cruz LC, Ather JL, Geiszt M, Anathy V, Janssen-Heininger YMW, Poynter ME, Dixon AE, van der Vliet A. Diet-induced obesity worsens allergen-induced type 2/type 17 inflammation in airways by enhancing DUOX1 activation. Am J Physiol Lung Cell Mol Physiol 2023; 324:L228-L242. [PMID: 36625485 PMCID: PMC9942905 DOI: 10.1152/ajplung.00331.2022] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/16/2022] [Accepted: 12/29/2022] [Indexed: 01/11/2023] Open
Abstract
More than 50% of people with asthma in the United States are obese, and obesity often worsens symptoms of allergic asthma and impairs response to treatment. Based on previously established roles of the epithelial NADPH oxidase DUOX1 in allergic airway inflammation, we addressed the potential involvement of DUOX1 in altered allergic inflammation in the context of obesity. Intranasal house dust mite (HDM) allergen challenge of subjects with allergic asthma induced rapid secretion of IL-33, then IL-13, into the nasal lumen, responses that were significantly enhanced in obese asthmatic subjects (BMI >30). Induction of diet-induced obesity (DIO) in mice by high-fat diet (HFD) feeding similarly enhanced acute airway responses to intranasal HDM challenge, particularly with respect to secretion of IL-33 and type 2/type 3 cytokines, and this was associated with enhanced epithelial DUOX1 expression and was avoided in DUOX1-deficient mice. DIO also enhanced DUOX1-dependent features of chronic HDM-induced allergic inflammation. Although DUOX1 did not affect overall weight gain by HFD feeding, it contributed to glucose intolerance, suggesting a role in glucose metabolism. However, glucose intolerance induced by short-term HFD feeding, in the absence of adiposity, was not sufficient to alter HDM-induced acute airway responses. DIO was associated with enhanced presence of the adipokine leptin in the airways, and leptin enhanced DUOX1-dependent IL-13 and mucin production in airway epithelial cells. In conclusion, augmented inflammatory airway responses to HDM in obesity are associated with increases in airway epithelial DUOX1, and by increased airway epithelial leptin signaling.
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Affiliation(s)
- Aida Habibovic
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Milena Hristova
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Carolyn R Morris
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Miao-Chong Joy Lin
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Litiele C Cruz
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Jennifer L Ather
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Miklós Geiszt
- Department of Physiology and "Lendület" Peroxidase Enzyme Research Group, Semmelweis University, Budapest, Hungary
| | - Vikas Anathy
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Yvonne M W Janssen-Heininger
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Matthew E Poynter
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Anne E Dixon
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Albert van der Vliet
- Departments of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
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15
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Roy MC, Ahmed S, Kim Y. Dorsal switch protein 1 as a damage signal in insect gut immunity to activate dual oxidase via an eicosanoid, PGE 2. Front Immunol 2022; 13:994626. [PMID: 36439105 PMCID: PMC9691268 DOI: 10.3389/fimmu.2022.994626] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/18/2022] [Indexed: 08/05/2023] Open
Abstract
Various microbiota including beneficial symbionts reside in the insect gut. Infections of pathogens cause dysregulation of the microflora and threaten insect survival. Reactive oxygen species (ROS) have been used in the gut immune responses, in which its production is tightly regulated by controlling dual oxidase (Duox) activity via Ca2+ signal to protect beneficial microflora and gut epithelium due to its high cytotoxicity. However, it was not clear how the insects discriminate the pathogens from the various microbes in the gut lumen to trigger ROS production. An entomopathogenic nematode (Steinernema feltiae) infection elevated ROS level in the gut lumen of a lepidopteran insect, Spodoptera exigua. Dorsal switch protein 1 (DSP1) localized in the nucleus in the midgut epithelium was released into plasma upon the nematode infection and activated phospholipase A2 (PLA2). The activated PLA2 led to an increase of PGE2 level in the midgut epithelium, in which rising Ca2+ signal up-regulated ROS production. Inhibiting DSP1 release by its specific RNA interference (RNAi) or specific inhibitor, 3-ethoxy-4-methoxyphenol, treatment failed to increase the intracellular Ca2+ level and subsequently prevented ROS production upon the nematode infection. A specific PLA2 inhibitor treatment also prevented the up-regulation of Ca2+ and subsequent ROS production upon the nematode infection. However, the addition of PGE2 to the inhibitor treatment rescued the gut immunity. DSP1 release was not observed at infection with non-pathogenic pathogens but detected in plasma with pathogenic infections that would lead to damage to the gut epithelium. These results indicate that DSP1 acts as a damage-associated molecular pattern in gut immunity through DSP1/PLA2/Ca2+/Duox.
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16
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Morris CR, Habibovic A, Dustin CM, Schiffers C, Lin MC, Ather JL, Janssen-Heininger YMW, Poynter ME, Utermohlen O, Krönke M, van der Vliet A. Macrophage-intrinsic DUOX1 contributes to type 2 inflammation and mucus metaplasia during allergic airway disease. Mucosal Immunol 2022; 15:977-989. [PMID: 35654836 PMCID: PMC9391268 DOI: 10.1038/s41385-022-00530-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/24/2022] [Accepted: 03/23/2022] [Indexed: 02/04/2023]
Abstract
The NADPH oxidase DUOX1 contributes to epithelial production of alarmins, including interleukin (IL)-33, in response to injurious triggers such as airborne protease allergens, and mediates development of mucus metaplasia and airway remodeling in chronic allergic airways diseases. DUOX1 is also expressed in non-epithelial lung cell types, including macrophages that play an important role in airway remodeling during chronic lung disease. We therefore conditionally deleted DUOX1 in either lung epithelial or monocyte/macrophage lineages to address its cell-specific actions in innate airway responses to acute airway challenge with house dust mite (HDM) allergen, and in chronic HDM-driven allergic airway inflammation. As expected, acute responses to airway challenge with HDM, as well as type 2 inflammation and related features of airway remodeling during chronic HDM-induced allergic inflammation, were largely driven by DUOX1 with the respiratory epithelium. However, in the context of chronic HDM-driven inflammation, DUOX1 deletion in macrophages also significantly impaired type 2 cytokine production and indices of mucus metaplasia. Further studies revealed a contribution of macrophage-intrinsic DUOX1 in macrophage recruitment upon chronic HDM challenge, as well as features of macrophage activation that impact on type 2 inflammation and remodeling.
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Affiliation(s)
- Carolyn R Morris
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA
| | - Aida Habibovic
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA
| | - Christopher M Dustin
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA
| | - Caspar Schiffers
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA
| | - Miao-Chong Lin
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA
| | - Jennifer L Ather
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Yvonne M W Janssen-Heininger
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA
| | - Matthew E Poynter
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT, USA
| | - Olaf Utermohlen
- Institute for Medical Microbiology, Immunology and Hygiene, University Hospital Cologne, Cologne, Germany
| | - Martin Krönke
- Institute for Medical Microbiology, Immunology and Hygiene, University Hospital Cologne, Cologne, Germany
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, USA.
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17
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Le Moigne V, Rodriguez Rincon D, Glatigny S, Dupont CM, Langevin C, Ait Ali Said A, Renshaw SA, Floto RA, Herrmann JL, Bernut A. Roscovitine Worsens Mycobacterium abscessus Infection by Reducing DUOX2-mediated Neutrophil Response. Am J Respir Cell Mol Biol 2022; 66:439-451. [PMID: 35081328 PMCID: PMC8990120 DOI: 10.1165/rcmb.2021-0406oc] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/26/2022] [Indexed: 11/24/2022] Open
Abstract
Persistent neutrophilic inflammation associated with chronic pulmonary infection causes progressive lung injury and, eventually, death in individuals with cystic fibrosis (CF), a genetic disease caused by biallelic mutations in the CF transmembrane conductance regulator (CFTR) gene. Therefore, we examined whether roscovitine, a cyclin-dependent kinase inhibitor that (in other conditions) reduces inflammation while promoting host defense, might provide a beneficial effect in the context of CF. Herein, using CFTR-depleted zebrafish larvae as an innovative vertebrate model of CF immunopathophysiology, combined with murine and human approaches, we sought to determine the effects of roscovitine on innate immune responses to tissue injury and pathogens in the CF condition. We show that roscovitine exerts antiinflammatory and proresolution effects in neutrophilic inflammation induced by infection or tail amputation in zebrafish. Roscovitine reduces overactive epithelial reactive oxygen species (ROS)-mediated neutrophil trafficking by reducing DUOX2/NADPH-oxidase activity and accelerates inflammation resolution by inducing neutrophil apoptosis and reverse migration. It is important to note that, although roscovitine efficiently enhances intracellular bacterial killing of Mycobacterium abscessus in human CF macrophages ex vivo, we found that treatment with roscovitine results in worse infection in mouse and zebrafish models. By interfering with DUOX2/NADPH oxidase-dependent ROS production, roscovitine reduces the number of neutrophils at infection sites and, consequently, compromises granuloma formation and maintenance, favoring extracellular multiplication of M. abscessus and more severe infection. Our findings bring important new understanding of the immune-targeted action of roscovitine and have significant therapeutic implications for safely targeting inflammation in CF.
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Affiliation(s)
- Vincent Le Moigne
- Infection et Inflammation, Inserm/UVSQ, UMR 1173, Université Paris-Saclay, Montigny-le-Bretonneux, France
| | - Daniela Rodriguez Rincon
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Simon Glatigny
- Infection et Inflammation, Inserm/UVSQ, UMR 1173, Université Paris-Saclay, Montigny-le-Bretonneux, France
| | - Christian M. Dupont
- Institut de Recherche en Infectiologie de Montpellier, Centre National de la Recherche Scientifique, UMR 9004, Montpellier, France
| | - Christelle Langevin
- Inrae, Infectiologie Expérimentale des Rongeurs et des Poissons, UE 0907, Jouy-en-Josas, France
| | - Amel Ait Ali Said
- Infection et Inflammation, Inserm/UVSQ, UMR 1173, Université Paris-Saclay, Montigny-le-Bretonneux, France
| | - Stephen A. Renshaw
- Department of Infection, Immunity and Cardiovascular Disease, Sheffield Medical School, and
- Firth Court, Bateson Centre, University of Sheffield, Sheffield, United Kingdom
| | - R. Andres Floto
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
- Cambridge Centre for Lung Infection, Royal Papworth Hospital, Cambridge, United Kingdom; and
| | - Jean-Louis Herrmann
- Infection et Inflammation, Inserm/UVSQ, UMR 1173, Université Paris-Saclay, Montigny-le-Bretonneux, France
- Hôpital Raymond Poincaré, AP-HP, Groupe Hospitalo-universitaire Paris-Saclay, Garches, France
| | - Audrey Bernut
- Infection et Inflammation, Inserm/UVSQ, UMR 1173, Université Paris-Saclay, Montigny-le-Bretonneux, France
- Department of Infection, Immunity and Cardiovascular Disease, Sheffield Medical School, and
- Firth Court, Bateson Centre, University of Sheffield, Sheffield, United Kingdom
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18
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Ríos-Sánchez E, González-Zamora A, Gonsebatt Bonaparte ME, Meza Mata E, González-Delgado MF, Zámago Amaro A, Pérez-Morales R. Regulation of the Tpo, Tg, Duox2, Pds, and Mct8 genes involved in the synthesis of thyroid hormones after subchronic exposure to sodium nitrate in female Wistar rats. Environ Toxicol 2021; 36:2380-2391. [PMID: 34409734 DOI: 10.1002/tox.23351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/22/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Nitrates are natural compounds present in soil and water; however, the intense use of fertilizers has increased their presence in groundwater with deleterious effects on human health. There is evidence of nitrates acting as endocrine disruptors; however, the underlying molecular mechanisms have not been fully described. Here, we investigated the effect of subchronic exposure to different concentrations of sodium nitrate in female Wistar rats, evaluating thyroid hormonal parameters, such as Nis transporter (Na+ /I- symporter, Slc5a5) and Tsh-R receptor protein expression, as well as transcription of the Tpo (thyroperoxidase), Tg (tiroglobulin), Duox2 (dual oxidase 2), Pds (pendrin), and Mct8 (Mct8 transporter, Slc16a2) genes. Hematological and histochemical changes in the liver and thyroid were also explored. Significant differences were found in platelet and leukocyte counts; although a significant increase in the weight of the thyroid gland was observed, no differences were found in the levels of the hormones Tsh, T3, and T4, but a modulation of the mRNA expression of the Tg, Tpo, Duox2, Mct8, and Pds genes was observed. Morphological changes were also found in liver and thyroid tissue according to the exposure doses. In conclusion, subchronic exposure to sodium nitrate induces leukocytosis consistent with an inflammatory response and upregulation of Sod2 in the liver and increases the expression of genes involved in the synthesis of thyroid hormones, keeping thyroid hormone levels stable. Histological changes in the thyroid gland suggest a goitrogenic effect.
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Affiliation(s)
- Efraín Ríos-Sánchez
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico
| | - Alberto González-Zamora
- Laboratorio de Biología Evolutiva. Facultad de Ciencias Biológicas, Universidad Juárez del Estado de Durango, Durango, Mexico
| | - María Eugenia Gonsebatt Bonaparte
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Elizabeth Meza Mata
- Departamento de Patología, Unidad Médica de Alta Especialidad #71. Instituto Mexicano del Seguro Social, Torreón, Mexico
| | - María Fernanda González-Delgado
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico
| | - Alejandra Zámago Amaro
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico
| | - Rebeca Pérez-Morales
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Mexico
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19
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Zhang Y, Liu C, Jin R, Wang Y, Cai T, Ren Z, Ma K, He S, Lee KS, Jin BR, Li J, Wan H. Dual oxidase-dependent reactive oxygen species are involved in the regulation of UGT overexpression-mediated clothianidin resistance in the brown planthopper, Nilaparvata lugens. Pest Manag Sci 2021; 77:4159-4167. [PMID: 33934482 DOI: 10.1002/ps.6453] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Uridine diphosphate-glycosyltransferases (UGTs) are phase II metabolic enzymes involved in metabolism of toxins and resistance to insecticides in insect pests. Reactive oxygen species (ROS) induced by xenobiotics are important for activation of detoxification pathways. However, relationships between ROS and UGTs involved in toxin metabolism and insecticide resistance remain unclear. RESULTS Here, involvement of dual oxidase (Duox)-dependent ROS in regulating UGT expression-mediated insecticide resistance in the brown planthopper (Nilaparvata lugens) was investigated. The overexpression of NlUGT386F2 contributed to the resistance of N. lugens to clothianidin. Furthermore, the ROS inhibitor (N-acetylcysteine) significantly reduced the expression of NlUGT386F2 and increased the susceptibility of N. lugens to clothianidin. Silencing the ROS producer Duox significantly increased the susceptibility of N. lugens to clothianidin through the down-regulation of NlUGT386F2 expression. CONCLUSION NlDuox-dependent ROS regulates NlUGT386F2 expression-mediated clothianidin resistance in brown planthopper. These observations further our understanding of the metabolism of toxins and of insecticide-resistance in insect pests.
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Affiliation(s)
- Yunhua Zhang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Chaoya Liu
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Ruoheng Jin
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Yue Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Tingwei Cai
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Zhijie Ren
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Kangsheng Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Shun He
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Kwang S Lee
- College of Natural Resources and Life Science, Dong-A University, Busan, Republic of Korea
| | - Byung R Jin
- College of Natural Resources and Life Science, Dong-A University, Busan, Republic of Korea
| | - Jianhong Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Hu Wan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
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Guo P, Chen S, Li D, Zhang J, Luo J, Zhang A, Yu D, Bloom MS, Chen L, Chen W. SFPQ is involved in regulating arsenic-induced oxidative stress by interacting with the miRNA-induced silencing complexes. Environ Pollut 2020; 261:114160. [PMID: 32066060 DOI: 10.1016/j.envpol.2020.114160] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/06/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
Arsenic exposure contributed to the development of human diseases. Arsenic exerted multiple organ toxicities mainly by triggering oxidative stress. However, the signaling pathway underlying oxidative stress is unclear. We previously found that the expression of SFPQ, a splicing factor, was positively associated with urinary arsenic concentration in an arsenic-exposed population, suggesting an oxidative stress regulatory role for SFPQ. To test this hypothesis, we established cell models of oxidative stress in human hepatocyte cells (L02) treated with NaAsO2. Reactive oxygen species (ROS) synthesis displayed a time- and dose-dependent increase with NaAsO2 treatment. SFPQ suppression resulted in a 36%-53% decrease in ROS generation, leading to enhanced cellular damage determined by 8-OHdG, comet tail moment, and micronucleus analysis. Particularly, SFPQ deficiency attenuated expression of the oxidase genes DUOX1, DUOX2, NCF2, and NOX2. A fluorescent-based RNA electrophoretic mobility shift assay (FREMSA) and dual-luciferase reporter system revealed that miR-92b-5p targeted DUOX2 mRNA degradation. An RNA immunoprecipitation assay showed an interaction between SFPQ and miR-92b-5p of the miRNA-induced silencing complex (miRISC). Notably, NaAsO2 treatment diminished the interaction between SFPQ and miR92b-5p, accompanied by decreased binding between miR-92b-5p and 3'-UTR of DUOX2. However, SFPQ deficiency suppressed the dissociation of miR-92b-5p from 3'-UTR of DUOX2, indicating that miR-92b-5p regulated the SFPQ-dependent DUOX2 expression. Taken together, we reveal that SFPQ responds to arsenic-induced oxidative stress by interacting with the miRISC. These findings offer new insight into the potential role of SFPQ in regulating cellular stress response.
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Affiliation(s)
- Ping Guo
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shen Chen
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Daochuan Li
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Jinmiao Zhang
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Jiao Luo
- School of Public Health, Qingdao University, Qingdao 266071, China
| | - Aihua Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China
| | - Dianke Yu
- School of Public Health, Qingdao University, Qingdao 266071, China
| | - Michael S Bloom
- Departments of Environmental Health Sciences & Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Liping Chen
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Wen Chen
- The Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, China
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Martínez MA, Rodríguez JL, Lopez-Torres B, Martínez M, Martínez-Larrañaga MR, Anadón A, Ares I. Oxidative stress and related gene expression effects of cyfluthrin in human neuroblastoma SH-SY5Y cells: Protective effect of melatonin. Environ Res 2019; 177:108579. [PMID: 31330490 DOI: 10.1016/j.envres.2019.108579] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 06/10/2023]
Abstract
This study was designed to assess oxidative stress induction in human neuroblastoma SH-SY5Y cells in response to cyfluthrin exposure. Cell viability MTT assay was carried out to assess cyfluthrin cytotoxicity; IC30 and IC50 values for cyfluthrin were calculated to be 4.81 ± 0.92 μM and 19.39 ± 3.44 μM, respectively. Cyfluthrin induced a significant increase in ROS generation, lipid peroxides measured as malondialdehyde (MDA) and nitric oxide (NO) production and a significant decrease in NQO1 activity. The antioxidant activity of melatonin (MEL), Trolox, N-acetylcysteine (NAC) and Sylibin against cyfluthrin-induced oxidative stress was examined. Cyfluthrin increased significantly gene expressions of apoptosis, proinflammation and oxidative stress (Bax, Bcl-2, Casp-3, BNIP3, AKT1, p53, APAF1, NFκB1, TNFα and Nrf2) mediators. In the most genes, the mRNA levels induced by cyfluthrin were partially reduced by MEL (1 μM). Cyfluthrin effects on gene expression profiling of oxidative stress pathway by Real-Time PCR array analysis showed that of the 84 genes examined, (fold change > 1.5) changes in mRNA levels were detected in 31 genes: 13 upregulated and 18 down-regulated. A fold change >3.0 fold was observed on upregulated CYBB, DUOX1, DUOX2, AOX1, BNIP3, HSPA1A, NOS2, and NQO1 genes. The greater fold change reversion (2.5 fold) by MEL (1 μM) was observed on cyfluthrin-upregulated CYBB, AOX1, BNIP3 and NOS2 genes. These results demonstrated that oxidative stress is a key element in cyfluthrin induced neurotoxicity as well as MEL may play a role in reducing cyfluthrin-induced oxidative stress.
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Affiliation(s)
- María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - José-Luis Rodríguez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Bernardo Lopez-Torres
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
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Abstract
CONTEXT The DUOX2 enzyme generates hydrogen peroxide (H2O2), a crucial electron acceptor for the thyroid peroxidase-catalyzed iodination and coupling reactions mediating thyroid hormone biosynthesis. DUOX2 mutations result in dyshormonogenetic congenital hypothyroidism (CH) that may be phenotypically heterogeneous, leading to the hypothesis that CH severity may be influenced by environmental factors (e.g., dietary iodine) and oligogenic modifiers (e.g., variants in the homologous reduced form of NAD phosphate-oxidase DUOX1). However, loss-of-function mutations in DUOX1 have not hitherto been described, and its role in thyroid biology remains undefined. CASE DESCRIPTION We previously described a Proband and her brother (P1, P2) with unusually severe CH associated with a DUOX2 homozygous nonsense mutation (p.R434*); P1, P2: thyrotropin >100 µU/mL [reference range (RR) 0.5 to 6.3]; and P1: free T4 (FT4) <0.09 ng/dL (RR 0.9 to 2.3). Subsequent studies have revealed a homozygous DUOX1 mutation (c.1823-1G>C) resulting in aberrant splicing and a protein truncation (p.Val607Aspfs*43), which segregates with CH in this kindred. CONCLUSION This is a report of digenic mutations in DUOX1 and DUOX2 in association with CH, and we hypothesize that the inability of DUOX1 to compensate for DUOX2 deficiency in this kindred may underlie the severe CH phenotype. Our studies provide evidence for a digenic basis for CH and support the notion that oligogenicity as well as environmental modulators may underlie phenotypic variability in genetically ascertained CH.
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Affiliation(s)
- Zehra Aycan
- Division of Paediatric Endocrinology, Dr. Sami Ulus Woman Health and Children Research Hospital, 06080 Ankara, Turkey
| | - Hakan Cangul
- Department of Medical Genetics, Istanbul Medipol University, International School of Medicine, 34810 Istanbul, Turkey
| | - Marina Muzza
- Endocrine Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Policlinico, 20122 Milan, Italy
| | - Veysel N. Bas
- Division of Paediatric Endocrinology, Dr. Sami Ulus Woman Health and Children Research Hospital, 06080 Ankara, Turkey
| | - Laura Fugazzola
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
- Division of Endocrinology and Metabolism, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, 20149 Milan, Italy
| | - V. Krishna Chatterjee
- University of Cambridge Metabolic Research Laboratories, Wellcome Trust–Medical Research Council Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom
| | - Luca Persani
- Division of Endocrinology and Metabolism, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, 20149 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Nadia Schoenmakers
- University of Cambridge Metabolic Research Laboratories, Wellcome Trust–Medical Research Council Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom
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23
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Zheng X, Ma SG, Guo ML, Qiu YL, Yang LX. Compound Heterozygous Mutations in the DUOX2/DUOXA2 Genes Cause Congenital Hypothyroidism. Yonsei Med J 2017; 58:888-890. [PMID: 28541007 PMCID: PMC5447125 DOI: 10.3349/ymj.2017.58.4.888] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 03/28/2016] [Accepted: 04/19/2016] [Indexed: 11/27/2022] Open
Abstract
The mutations in the dual oxidase 2 (DUOX2) and dual oxidase maturation factor 2 (DUOXA2) genes can cause congenital hypothyroidism (CH). This study reports the pedigree with goitrous congenital hypothyroidism (GCH) due to the coexistence of heterozygous mutations in the DUOX2 and DUOXA2 genes. The two sisters with GCH were diagnosed with CH at neonatal screening and were enrolled in this study. The DUOX2, DUOXA2, and thyroid peroxidase (TPO) genes were considered for genetic defects screening. Family members of the patients and normal controls were also enrolled and evaluated. The two girls harbored compound heterozygous mutations, including a new mutation of c.2654G>T (p.R885L) in the maternal DUOX2 allele and c.738C>G (p.Y246X) in the paternal DUOXA2 allele, that has been previously reported. The germline mutations from the families were consistent with an autosomal recessive inheritance pattern. No mutations in the TPO gene and the controls were observed.
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Affiliation(s)
- Xiao Zheng
- Department of Endocrinology and Metabolism, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, P.R. China
| | - Shao Gang Ma
- Department of Endocrinology and Metabolism, Nanxi Shan Hospital, Guangxi Zhuang Autonomous Region, P.R. China.
| | - Man Li Guo
- Department of Endocrinology and Metabolism, Nanxi Shan Hospital, Guangxi Zhuang Autonomous Region, P.R. China
| | - Ya Li Qiu
- Department of Neonatal Screening and Care, Women and Children's Hospital of Suqian, Suqian, P.R. China
| | - Liu Xue Yang
- Department of Endocrinology and Metabolism, The Second Hospital Affiliated to Guilin Medical College, Guilin, P.R. China
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Chu FF, Esworthy RS, Doroshow JH, Shen B. NADPH oxidase-1 deficiency offers little protection in Salmonella typhimurium-induced typhlitis in mice. World J Gastroenterol 2016; 22:10158-10165. [PMID: 28028364 PMCID: PMC5155175 DOI: 10.3748/wjg.v22.i46.10158] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 10/09/2016] [Accepted: 11/16/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To test whether Nox1 plays a role in typhlitis induced by Salmonella enterica serovar Typhimurium (S. Tm) in a mouse model.
METHODS Eight-week-old male wild-type (WT) and Nox1 knockout (KO) C57BL6/J (B6) mice were administered metronidazole water for 4 d to make them susceptible to S. Tm infection by the oral route. The mice were given plain water and administered with 4 different doses of S. Tm by oral gavage. The mice were followed for another 4 d. From the time of the metronidazole application, the mice were observed twice daily and weighed daily. The ileum, cecum and colon were removed for sampling at the fourth day post-inoculation. Portions of all three tissues were fixed for histology and placed in RNAlater for mRNA/cDNA preparation and quantitative real-time PCR. The contents of the cecum were recovered for estimation of S. Tm CFU.
RESULTS We found Nox1-knockout (Nox1-KO) mice were not more sensitive to S. Tm colonization and infection than WT B6 mice. This conclusion is based on the following observations: (1) S. Tm-infection induced similar weight loss in Nox1-KO mice compared to WT mice; (2) the same S. Tm CFU was recovered from the cecal content of Nox1-KO and WT mice regardless of the inoculation dose, except the lowest inoculation dose (2 × 106 CFU) for which the Nox1-KO had one-log lower CFU than WT mice; (3) there is no difference in cecal pathology between WT and Nox1-KO groups; and (4) there are no S. Tm infection-induced changes in gene expression levels (IL-1b, TNF-α, and Duox2) between WT and Nox1-KO groups. The Alpi gene expression was more suppressed by S. Tm treatment in WT than the Nox1-KO cecum.
CONCLUSION Nox1 does not protect mice from S. Tm colonization. Nox1-KO provides a very minor protective effect against S. Tm infection. Using NOX1-specific inhibitors for colitis therapy should not increase risks in bacterial infection.
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Abstract
Subclinical hypothyroidism is defined as serum levels of TSH above the upper limit of the reference range, in the presence of normal concentrations of total T4 or free T4. This biochemical profile might be an indication of mild hypothyroidism, with a potential increased risk of metabolic abnormalities and cardiovascular disease recorded among adults. Whether subclinical hypothyroidism results in adverse health outcomes among children is a matter of debate and so management of this condition remains challenging. Mild forms of untreated subclinical hypothyroidism do not seem to be associated with impairments in growth, bone health or neurocognitive outcome. However, ongoing scientific investigations have highlighted the presence of subtle proatherogenic abnormalities among children with modest elevations in their TSH levels. Although current findings are insufficient to recommend levothyroxine treatment for all children with mild asymptomatic forms of subclinical hypothyroidism, they highlight the potential need for assessment of cardiovascular risk among children with this condition. Increased understanding of the early metabolic risk factors associated with subclinical hypothyroidism in childhood will help to improve the management of affected individuals.
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Affiliation(s)
- Mariacarolina Salerno
- Department of Translational Medical Sciences - Pediatric Section, University of Naples Federico II, Naples, 80131, Italy
| | - Donatella Capalbo
- Department of Pediatrics, University Hospital Federico II, Naples, 80131, Italy
| | - Manuela Cerbone
- Department of Translational Medical Sciences - Pediatric Section, University of Naples Federico II, Naples, 80131, Italy
| | - Filippo De Luca
- Department of Pediatric, Gynecology, Microbiological and Biochemical Sciences, University of Messina, Messina, 98125, Italy
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26
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Tan M, Huang Y, Jiang X, Li P, Tang C, Jia X, Chen Q, Chen W, Sheng H, Feng Y, Wu D, Liu L. The Prevalence, Clinical, and Molecular Characteristics of Congenital Hypothyroidism Caused by DUOX2 Mutations: A Population-Based Cohort Study in Guangzhou. Horm Metab Res 2016; 48:581-8. [PMID: 27557340 DOI: 10.1055/s-0042-112224] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Thyroid dyshormonogenesis (DH) has recently been reported to be more frequently associated with mutations in the dual oxidase 2 (DUOX2) gene. The present study was aimed to investigate the prevalence, clinical, and molecular characteristics of congenital hypothyroidism (CH) caused by DUOX2 mutations in Guangzhou. A population-based cohort of 156 patients with CH was recruited based on neonatal screening among 433 578 newborns born in Guangzhou from 2011 to 2012. Genetic analysis of DUOX2 was performed in 96 patients with suspected thyroid dyshormonogenesis (SDH) by PCR-amplified direct sequencing. Apart from 2 cases without ultrasonographic data, 118 (76.6%) of the 156 patients were classified as SDH and 36 (23.4%) as thyroid dysgenesis (TD) according to thyroid ultrasound at diagnosis. Genetic analysis revealed 23 different variants in 60 unrelated individuals (60/96, 62.5%), including 13 novel variants that were absent from HGMD, dbSNP databases, and the 50 normal controls. The novel missense variants were predicted to be pathogenic by SIFT and PolyPhen-2. The p.K530X was the most common mutation. Ninety-three percent of mutant alleles occurred in exons 5, 6, 9, 14, 17, 20, 25, 27, and 28. There were no significant differences in phenotypes between biallelic and monoallelic variants cases or between with-DUOX2 and non-DUOX2 variants cases. Most patients with DUOX2 defects (78.2%) were transient CH. In conclusion, the prevalence of DUOX2 pathogenic variants was high (62.5%) in this cohort. Thirteen novel probably pathologic variants were reported. The p.K530X was the most common mutation in the Chinese population. There was no correlation between DUOX2 genotypes and clinical phenotypes.
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Affiliation(s)
- M Tan
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - Y Huang
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - X Jiang
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - P Li
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - C Tang
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - X Jia
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - Q Chen
- Department of Guangzhou Neonatal Screening Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - W Chen
- Department of Ultrasound, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Renminzhong Road, Guangzhou, China
| | - H Sheng
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Road, Guangzhou, China
| | - Y Feng
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Road, Guangzhou, China
| | - D Wu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Road, Guangzhou, China
| | - L Liu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Jinsui Road, Guangzhou, China
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Matsuo K, Tanahashi Y, Mukai T, Suzuki S, Tajima T, Azuma H, Fujieda K. High prevalence of DUOX2 mutations in Japanese patients with permanent congenital hypothyroidism or transient hypothyroidism. J Pediatr Endocrinol Metab 2016; 29:807-12. [PMID: 27166716 DOI: 10.1515/jpem-2015-0400] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 03/29/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Dual oxidase 2 (DUOX2) mutations are a cause of dyshormonogenesis (DH) and have been identified in patients with permanent congenital hypothyroidism (PH) and with transient hypothyroidism (TH). We aimed to elucidate the prevalence and phenotypical variations of DUOX2 mutations. METHODS Forty-eight Japanese DH patients were enroled and analysed for sequence variants of DUOX2, DUOXA2, and TPO using polymerase chain reaction-amplified direct sequencing. RESULTS Fourteen sequence variants of DUOX2, including 10 novel variants, were identified in 11 patients. DUOX2 variants were more prevalent (11/48, 22.9%) than TPO (3/48, 6.3%) (p=0.020). The prevalence of DUOX2 variants in TH was slightly, but not significantly, higher than in PH. Furthermore, one patient had digenic heterozygous sequence variants of both DUOX2 and TPO. CONCLUSIONS Our results suggest that DUOX2 mutations might be the most common cause of both PH and TH, and that phenotypes of these mutations might be milder than those of other causes.
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Tahmasbpour Marzony E, Nejad-Moghadam A, Ghanei M, Panahi Y. Sulfur mustard causes oxidants/antioxidants imbalance through the overexpression of free radical producing-related genes in human mustard lungs. Environ Toxicol Pharmacol 2016; 45:187-192. [PMID: 27317991 DOI: 10.1016/j.etap.2016.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study is to analyze oxidative stress (OS) and changes in expression of reactive oxygen species (ROS) producing-related genes in mustard lungs. Human lung biopsies provided from controls (n=5) and sulfur mustard (SM)-exposed patients (n=6). Changes in expression of dual oxidases (DUOXs), aldehyde oxidase 1 (AOX1), thyroid peroxidase (TPO), myeloperoxidase (MPO) and eosinophil Peroxidase (EPO) were measured using RT(2) Profiler(™) PCR Array. OS was evaluated by determining bronchoalveolar lavage fluids (BALF) levels of total antioxidant capacity (TAC) and malondialdehyde (MDA). Higher TAC value was observed in BALF of controls compared with patients (0.138±0.02683μmol/l vs 0.0942±0.01793μmol/l), whereas a significant increase in MDA concentration was found in patients (0.486±0.04615 nmol/l vs 0.6467±0.05922 nmol/l). All ROS producing-related genes were overexpressed in the order AOX1>MPO>DUOX2>DUOX1>TPO>EPO. Upregulation of these genes may be a reason for overproduction of ROS, oxidants/antioxidants imbalance, OS and respiratory failures in mustard lungs.
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Affiliation(s)
| | - Amir Nejad-Moghadam
- Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghanei
- Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Yunes Panahi
- Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Fu CY, Zhang SJ, Luo SY, Wang J, Yang Q, Xie BB, Chen SK. [Genetic analysis for 5 congenital hypothyroidism patients due to dyshormonogenesis]. Zhonghua Er Ke Za Zhi 2016; 54:433-436. [PMID: 27256230 DOI: 10.3760/cma.j.issn.0578-1310.2016.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To analyze molecular characteristics of 5 congenital hypothyroidism (CH) patients due to dyshormonogenesis. METHOD We enrolled 5 CH patients due to dyshormonogenesis who were identified in Newborn Screening Center of Guangxi Zhuang Autonomous Region, China. Blood samples were collected from the patients and their parents, and genomic DNA was extracted from peripheral blood leukocytes. All exons of DUOX2, TG, TPO and NIS gene together with their exon-intron boundaries were screened by next-generation sequencing. Specimens from 100 normal controls were tested for these novel variations. RESULT No TPO, NIS or TG gene mutations were identified. Direct sequencing of the DUOX2 gene revealed that patient 1 had a compound heterozygote for c. 3340delC and p. R683L, patient 2 was homozygous for p. K530X and patient 3 was a heterozygote for p. E879K. Both biallelic and monoallelic heterozygous mutations in DUOX2 were associated with transient CH. Novel mutations included c. 3340delC and p. R683L, analysis of 100 healthy subjects without thyroid disease did not show the same change. CONCLUSION Genetic analysis of TPO, NIS, DUOX2 and TG gene in 5 unrelated CH patients with thyroid dyshormonogenesis revealed two novel DUOX2 mutations, both were biallelic and monoallelic heterozygous mutations in DUOX2 associated with transient CH.
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Affiliation(s)
- C Y Fu
- Department of Genetics and Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
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Santoro V, Jia R, Thompson H, Nijhuis A, Jeffery R, Kiakos K, Silver AR, Hartley JA, Hochhauser D. Role of Reactive Oxygen Species in the Abrogation of Oxaliplatin Activity by Cetuximab in Colorectal Cancer. J Natl Cancer Inst 2016; 108:djv394. [PMID: 26719345 PMCID: PMC4864961 DOI: 10.1093/jnci/djv394] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 09/13/2015] [Accepted: 11/24/2015] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The antibody cetuximab, targeting epidermal growth factor receptor (EGFR), is used to treat metastatic colorectal cancer (mCRC). Clinical trials suggest reduced benefit from the combination of cetuximab with oxaliplatin. The aim of this study was to investigate potential negative interactions between cetuximab and oxaliplatin. METHODS Thiazolyl blue tetrazolium bromide (MTT) assay and Calcusyn software were used to characterize drug interactions. Reactive oxygen species (ROS) were measured by flow cytometry and real-time polymerase chain reaction oxidative stress arrays identified genes regulating ROS production. Chromatin immunoprecipitation (ChIP) measured signal transducer and activator of transcription 1 (STAT-1) binding to dual oxidase 2 (DUOX2) promoter. SW48, DLD-1 KRAS wild-type cell lines and DLD-1 xenograft models exposed to cetuximab, oxaliplatin, or oxaliplatin + cetuximab (control [saline]; n = 3 mice per treatment group) were used. Statistical tests were two-sided. RESULTS Cetuximab and oxaliplatin exhibited antagonistic effects on cellular proliferation and apoptosis (caspase 3/7 activity reduced by 1.4-fold, 95% confidence interval [CI] = 0.78 to 2.11, P = .003) as opposed to synergistic effects observed with the irinotecan metabolite 7-Ethyl-10-hydroxycamptothecin (SN-38). Although both oxaliplatin and SN-38 produced ROS, only oxaliplatin-mediated apoptosis was ROS dependent. Production of ROS by oxaliplatin was secondary to STAT1-mediated transcriptional upregulation of DUOX2 (3.1-fold, 95% CI = 1.75 to 2.41, P < .001). Inhibition of DUOX2 induction and p38 activation by cetuximab reduced oxaliplatin cytotoxicity. CONCLUSIONS Inhibition of STAT1 and DUOX2-mediated ROS generation by cetuximab impairs p38-dependent apoptosis by oxaliplatin in preclinical models and may contribute to reduced efficacy in clinical settings. Understanding the rationale for unexpected trial results will inform improved rationales for combining EGFR inhibitors with chemotherapeutic agents in future therapeutic use.
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Affiliation(s)
- Valeria Santoro
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Ruochen Jia
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Hannah Thompson
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Anke Nijhuis
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Rosemary Jeffery
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Konstantinos Kiakos
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Andrew R Silver
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - John A Hartley
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS)
| | - Daniel Hochhauser
- Cancer Research UK Drug-DNA Interactions Research Group, UCL Cancer Institute, University College London, London, UK (VS, RJ, KK, JAH, DH); Colorectal Cancer Genetics Group, Blizard Institute, London, UK (HT, AN, RJ, ARS);
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Ma SG, Zheng X, Qiu YL, Guo ML, Shao XJ. Compound heterozygous mutations (p.T561M and c.2422delT) in the TPO gene associated with congenital hypothyroidism. J Pediatr Endocrinol Metab 2016; 29:567-70. [PMID: 27135621 DOI: 10.1515/jpem-2015-0383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 12/30/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND The objective of the study was to determine the genetic basis of goitrous congenital hypothyroidism (GCH) in Chinese siblings. METHODS The proband and her younger brother with GCH were enrolled for molecular analysis of the dual oxidase 2 (DUOX2), dual oxidase maturation factor 2 (DUOXA2), and thyroid peroxidase (TPO) genes. Mutation screening was performed by Sanger sequencing the fragments amplified from genomic DNA. The detected mutations were verified among the close relatives of the patients and 105 controls. All participants underwent clinical examination and laboratory tests. RESULTS Analysis of the TPO gene revealed two heterozygous mutations, the frameshift mutation c.2422delT in the exon14 of the TPO gene, that has been reported previously, and a novel missense mutation c.1682C>T (p.T561M) in the exon10 of the TPO gene. Nine family members of the patients were enrolled for mutation screening. The patients' parents and grandfathers harbored a single heterozygous mutation. The germline mutations from this family were consistent with an autosomal recessive inheritance pattern. No mutations in the DUOXA2 and DUOX2 genes were observed. CONCLUSIONS The inactivating mutations (c.2422delT and p.T561M) in the TPO gene were identified in the Chinese siblings with GCH. The compound heterozygous mutations can cause GCH.
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Maruo Y, Nagasaki K, Matsui K, Mimura Y, Mori A, Fukami M, Takeuchi Y. Natural course of congenital hypothyroidism by dual oxidase 2 mutations from the neonatal period through puberty. Eur J Endocrinol 2016; 174:453-63. [PMID: 26742565 DOI: 10.1530/eje-15-0959] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 01/07/2016] [Indexed: 11/08/2022]
Abstract
AIM We previously reported that biallelic mutations in dual oxidase 2 (DUOX2) cause transient hypothyroidism. Since then, many cases with DUOX2 mutations have been reported. However, the clinical features and prognosis of individuals with DUOX2 defects have not been clarified. OBJECTIVE We investigated the prognosis of patients with congenital hypothyroidism (CH) due to DUOX2 mutations. PATIENTS Twenty-five patients were identified by a neonatal screening program and included seven familial cases. Their serum TSH values ranged from 18.9 to 734.6 mU/l. Twenty-two of the patients had low serum free thyroxine (fT4) levels (0.17-1.1 ng/dl). Twenty-four of the patients were treated with L-thyroxine. METHODS We analyzed the DUOX2, thyroid peroxidase, Na(+)/I(-) symporter, and dual oxidase maturation factor 2 genes of these 25 patients by PCR-amplified direct sequencing. An additional 11 genes were analyzed in 11 of the 25 patients using next-generation sequencing. RESULTS All patients had biallelic DUOX2 mutations, and seven novel alleles were detected. Fourteen of the patients were able to discontinue replacement therapy, and seven were receiving reduced L-thyroxine doses. Normalization of thyroglobulin lagged several years behind the completion of treatment. Two patients showed permanent hypothyroidism. Except for one case of a learning disability, growth and psychomotor development were normal. CONCLUSION The prognosis of Japanese patients with DUOX2 defects was usually transient CH. Delayed improvement of thyroglobulin indicates that these patients have subclinical hypothyroidism. Hypothyroidism did not recur in patients during the study period (up to 18 years old).
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Affiliation(s)
- Yoshihiro Maruo
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
| | - Keisuke Nagasaki
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
| | - Katsuyuki Matsui
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
| | - Yu Mimura
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
| | - Asami Mori
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
| | - Maki Fukami
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
| | - Yoshihiro Takeuchi
- Department of PediatricsShiga University of Medical Science, Tsukinowa, Seta, Otsu, Shiga 520-2192, JapanDepartment of PediatricsNiigata University, Niigata, JapanDepartment of Molecular EndocrinologyNational Research Institute for Child Health and Development, Tokyo, Japan
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Yoshizawa-Ogasawara A, Abe K, Ogikubo S, Narumi S, Hasegawa T, Satoh M. Transient congenital hypothyroidism caused by compound heterozygous mutations affecting the NADPH-oxidase domain of DUOX2. J Pediatr Endocrinol Metab 2016; 29:363-71. [PMID: 26565538 DOI: 10.1515/jpem-2014-0479] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Accepted: 09/30/2015] [Indexed: 11/15/2022]
Abstract
Here, we describe three cases of loss-of-function mutations in the nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase (NOX) domain of dual oxidase 2 (DUOX2) occurring along with concurrent missense mutations in thyroid peroxidase (TPO), leading to transient congenital hypothyroidism (CH). Three Japanese boys with nonconsanguineous parents were diagnosed with CH during their neonatal screenings. All patients presented with moderate-to-severe neonatal hypothyroidism and were diagnosed with transient CH after re-evaluation of thyroid function. Two siblings were compound heterozygous for p.[R1110Q]+[Y1180X] in DUOX2; one of them was also heterozygous for p.[R361L] in TPO. The third patient was compound heterozygous for p.[L1160del]+[R1334W] in DUOX2 and heterozygous for p.[P883S] in TPO. This is the first report of a de novo L1160del mutation affecting the DUOX2 gene and of the novel mutations Y1180X in DUOX2 and R361L in TPO. R1110Q and L1160del were found to reduce H2O2 production (5%-9%, p<0.01), while Y1180X, which introduces a premature stop codon, did not confer detectable H2O2 production (-0.7%±0.6%, p<0.01). Moreover, R1334W, a missense mutation possibly affecting electron transfer, led to reduced H2O2 production (24%±0.9%, p<0.01) in vitro, and R1110Q and R1334W resulted in reduced protein expression. Y1180X was detected in a 120 kDa truncated form, whereas L1160del expression was maintained. Further, R361L, a novel missense mutation in TPO, caused partial reduction in peroxidase activity (20.6%±0.8%, p=0.01), whereas P883S, a missense variant, increased it (133.7%±2.8%, p=0.02). The protein expression levels in the case of R361L and P883S were maintained. In conclusion, we provide clinical and in vitro demonstrations of different functional defects and phenotypic heterogeneity in the same thyroid hormonogenesis pathway.
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Belforte FS, Citterio CE, Testa G, Olcese MC, Sobrero G, Miras MB, Targovnik HM, Rivolta CM. Compound heterozygous DUOX2 gene mutations (c.2335-1G>C/c.3264_3267delCAGC) associated with congenital hypothyroidism. Characterization of complex cryptic splice sites by minigene analysis. Mol Cell Endocrinol 2016; 419:172-84. [PMID: 26506010 DOI: 10.1016/j.mce.2015.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 09/25/2015] [Accepted: 10/19/2015] [Indexed: 12/11/2022]
Abstract
Iodide Organification defects (IOD) represent 10% of cases of congenital hypothyroidism (CH) being the main genes affected that of TPO (thyroid peroxidase) and DUOX2 (dual oxidasa 2). From a patient with clinical and biochemical criteria suggestive with CH associated with IOD, TPO and DUOX2 genes were analyzed by means of PCR-Single Strand Conformation Polymorphism analysis and sequencing. A novel heterozygous compound to the mutations c.2335-1G>C (paternal mutation, intron 17) and c.3264_3267delCAGC (maternal mutation, exon 24) was identified in the DUOX2 gene. Ex-vivo splicing assays and subsequent RT-PCR and sequencing analyses were performed on mRNA isolated from the HeLa cells transfected with wild-type and mutant pSPL3 expression vectors. The wild-type and c.2335-1G>C mutant alleles result in the complete inclusion or exclusion of exon 18, or in the activation of an exonic cryptic 5' ss with the consequent deletion of 169 bp at the end of this exon. However, we observed only a band of the expected size in normal thyroid tissue by RT-PCR. Additionally, the c.2335-1G>C mutation activates an unusual cryptic donor splice site in intron 17, located at position -14 of the authentic intron 17/exon 18 junction site, with an insertion of the last 14 nucleotides of the intron 17 in mutant transcripts with complete and partial inclusion of exon 18. The theoretical consequences of splice site mutation, predicted with the bioinformatics NNSplice, Fsplice, SPL, SPLM and MaxEntScan programs were investigated and evaluated in relation with the experimental evidence. These analyses confirm that c.2335-1G>C mutant allele would result in the abolition of the authentic splice acceptor site. The results suggest the coexistence in our patient of four putative truncated proteins of 786, 805, 806 and 1105 amino acids, with conservation of peroxidase-like domain and loss of gp91(phox)/NOX2-like domain. In conclusion a novel heterozygous compound was identified being responsible of IOD. Cryptic splicing sites have been characterized in DUOX2 gene for the first time. The use of molecular biology techniques is a valuable tool for understanding the molecular pathophysiology of this type of thyroid defects.
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Affiliation(s)
- Fiorella S Belforte
- Laboratorio de Genética Molecular Tiroidea, Instituto de Inmunología, Genética y Metabolismo (INIGEM, CONICET-UBA), Hospital de Clínicas "José de San Martín", C1120AAR Buenos Aires, Argentina; Cátedra de Genética (FFyB-UBA), C1113AAD Buenos Aires, Argentina
| | - Cintia E Citterio
- Laboratorio de Genética y Biología Molecular, Instituto de Inmunología, Genética y Metabolismo (INIGEM, CONICET-UBA), Hospital de Clínicas "José de San Martín", C1120AAR Buenos Aires, Argentina; Cátedra de Genética (FFyB-UBA), C1113AAD Buenos Aires, Argentina
| | - Graciela Testa
- Servicio de Endocrinología, Hospital de Niños Santísima Trinidad, 5000 Córdoba, Argentina
| | - María Cecilia Olcese
- Laboratorio de Genética Molecular Tiroidea, Instituto de Inmunología, Genética y Metabolismo (INIGEM, CONICET-UBA), Hospital de Clínicas "José de San Martín", C1120AAR Buenos Aires, Argentina; Cátedra de Genética (FFyB-UBA), C1113AAD Buenos Aires, Argentina
| | - Gabriela Sobrero
- Servicio de Endocrinología, Hospital de Niños Santísima Trinidad, 5000 Córdoba, Argentina
| | - Mirta B Miras
- Servicio de Endocrinología, Hospital de Niños Santísima Trinidad, 5000 Córdoba, Argentina
| | - Héctor M Targovnik
- Laboratorio de Genética y Biología Molecular, Instituto de Inmunología, Genética y Metabolismo (INIGEM, CONICET-UBA), Hospital de Clínicas "José de San Martín", C1120AAR Buenos Aires, Argentina; Cátedra de Genética (FFyB-UBA), C1113AAD Buenos Aires, Argentina
| | - Carina M Rivolta
- Laboratorio de Genética Molecular Tiroidea, Instituto de Inmunología, Genética y Metabolismo (INIGEM, CONICET-UBA), Hospital de Clínicas "José de San Martín", C1120AAR Buenos Aires, Argentina; Cátedra de Genética (FFyB-UBA), C1113AAD Buenos Aires, Argentina.
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Grasberger H, Gao J, Nagao-Kitamoto H, Kitamoto S, Zhang M, Kamada N, Eaton KA, El-Zaatari M, Shreiner AB, Merchant JL, Owyang C, Kao JY. Increased Expression of DUOX2 Is an Epithelial Response to Mucosal Dysbiosis Required for Immune Homeostasis in Mouse Intestine. Gastroenterology 2015; 149:1849-59. [PMID: 26261005 PMCID: PMC4663159 DOI: 10.1053/j.gastro.2015.07.062] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 07/24/2015] [Accepted: 07/31/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Dual oxidase 2 (DUOX2), a hydrogen-peroxide generator at the apical membrane of gastrointestinal epithelia, is up-regulated in patients with inflammatory bowel disease (IBD) before the onset of inflammation, but little is known about its effects. We investigated the role of DUOX2 in maintaining mucosal immune homeostasis in mice. METHODS We analyzed the regulation of DUOX2 in intestinal tissues of germ-free vs conventional mice, mice given antibiotics or colonized with only segmented filamentous bacteria, mice associated with human microbiota, and mice with deficiencies in interleukin (IL) 23 and IL22 signaling. We performed 16S ribosomal RNA gene quantitative polymerase chain reaction of intestinal mucosa and mesenteric lymph nodes of Duoxa(-/-) mice that lack functional DUOX enzymes. Genes differentially expressed in Duoxa(-/-) mice compared with co-housed wild-type littermates were correlated with gene expression changes in early-stage IBD using gene set enrichment analysis. RESULTS Colonization of mice with segmented filamentous bacteria up-regulated intestinal expression of DUOX2. DUOX2 regulated redox signaling within mucosa-associated microbes and restricted bacterial access to lymphatic tissues of the mice, thereby reducing microbiota-induced immune responses. Induction of Duox2 transcription by microbial colonization did not require the mucosal cytokines IL17 or IL22, although IL22 increased expression of Duox2. Dysbiotic, but not healthy human microbiota, activated a DUOX2 response in recipient germ-free mice that corresponded to abnormal colonization of the mucosa with distinct populations of microbes. In Duoxa(-/-) mice, abnormalities in ileal mucosal gene expression at homeostasis recapitulated those in patients with mucosal dysbiosis. CONCLUSIONS DUOX2 regulates interactions between the intestinal microbiota and the mucosa to maintain immune homeostasis in mice. Mucosal dysbiosis leads to increased expression of DUOX2, which might be a marker of perturbed mucosal homeostasis in patients with early-stage IBD.
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Affiliation(s)
- Helmut Grasberger
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan.
| | - Jun Gao
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Hiroko Nagao-Kitamoto
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Sho Kitamoto
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Min Zhang
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Nobuhiko Kamada
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Kathryn A Eaton
- Unit for Laboratory Animal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Mohamad El-Zaatari
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Andrew B Shreiner
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Juanita L Merchant
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Chung Owyang
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - John Y Kao
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan.
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Abstract
Maintaining the redox balance between generation and elimination of reactive oxygen species (ROS) is critical for health. Disturbances such as continuously elevated ROS levels will result in oxidative stress and development of disease, but likewise, insufficient ROS production will be detrimental to health. Reduced or even complete loss of ROS generation originates mainly from inactivating variants in genes encoding for NADPH oxidase complexes. In particular, deficiency in phagocyte Nox2 oxidase function due to genetic variants (CYBB, CYBA, NCF1, NCF2, NCF4) has been recognized as a direct cause of chronic granulomatous disease (CGD), an inherited immune disorder. More recently, additional diseases have been linked to functionally altered variants in genes encoding for other NADPH oxidases, such as for DUOX2/DUOXA2 in congenital hypothyroidism, or for the Nox2 complex, NOX1 and DUOX2 as risk factors for inflammatory bowel disease. A comprehensive overview of novel developments in terms of Nox/Duox-deficiency disorders is presented, combined with insights gained from structure-function studies that will aid in predicting functional defects of clinical variants.
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Affiliation(s)
- Sharon O'Neill
- Conway Institute, University College Dublin, Dublin, Ireland
| | - Julie Brault
- Université Grenoble Alpes, TIMC-IMAG Pôle Biologie, CHU de Grenoble, Grenoble, France; CGD Diagnosis and Research Centre, Pôle Biologie, CHU de Grenoble, Grenoble, France
| | - Marie-Jose Stasia
- Université Grenoble Alpes, TIMC-IMAG Pôle Biologie, CHU de Grenoble, Grenoble, France; CGD Diagnosis and Research Centre, Pôle Biologie, CHU de Grenoble, Grenoble, France
| | - Ulla G Knaus
- Conway Institute, University College Dublin, Dublin, Ireland.
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Heinzelmann S, Bauer G. Site-specific Effects of DUOX1-Related Peroxidase on Intercellular Apoptosis Signaling. Anticancer Res 2015; 35:5955-5971. [PMID: 26504019] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Intercellular apoptosis-inducing HOCl signaling is known as an interplay between superoxide anions/H₂O₂ of transformed target cells and dual oxidase 1 (DUOX1)-related peroxidase that is released from neighboring non-transformed or transformed effector cells. Effector cells are dispensable when the release of the peroxidase domain of DUOX1 from target cells is prevented through inhibition of matrix metalloproteinase (MMP) activity. Membrane-associated peroxidase is then co-localized to NADPH oxidase 1 (NOX1) and establishes HOCl signaling specifically in transformed cells, using the same biochemical pathways as classical intercellular HOCl signaling. Membrane-associated peroxidase protects against exogenous HOCl through reversal of the peroxidase reaction. In addition, membrane-associated peroxidase protects against NO/peroxynitrite signaling as it oxidates NO and decomposes peroxynitrite. The protective function of membrane-associated peroxidase (in the absence of MMP) is analogous to that of catalase, whereas the destructive effect of the enzyme, i.e. the synthesis of HOCl, is independent of its localization and of MMP activity.
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Affiliation(s)
- Sonja Heinzelmann
- Institute of Virology, Department of Medical Microbiology and Hygiene, University of Freiburg, Freiburg, Germany
| | - Georg Bauer
- Institute of Virology, Department of Medical Microbiology and Hygiene, University of Freiburg, Freiburg, Germany
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Pottgiesser SJ, Heinzelmann S, Bauer G. Intercellular HOCl-mediated Apoptosis Induction in Malignant Cells: Interplay Between NOX1-Dependent Superoxide Anion Generation and DUOX-related HOCl-generating Peroxidase Activity. Anticancer Res 2015; 35:5927-5943. [PMID: 26504017] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Intercellular apoptosis-inducing HOCl signaling is discussed as a control step during oncogenesis. It is defined as a sophisticated interplay between transformed target cells and non-transformed or transformed effector cells. In this study, transformed target cells were seeded as clumps of high local cell density, but low total cell number. They were surrounded by large numbers of effector cells, seeded at low local density. This spatially defined experimental arrangement allowed study of the impact of siRNA-mediated knockdown of NADPH oxidase 1 (NOX1) or dual oxidase 1 (DUOX1) on intercellular HOCl signaling. Our data show that the target function of transformed cells is defined as expression of NOX1 and subsequent extracellular superoxide anion generation. The NOX domain of DUOX1 does not contribute to the target function. The peroxidase domain of DUOX1 is released from transforming growth factor β1-treated non-transformed and transformed cells and acts in trans as HOCl-synthesizing peroxidase. These findings clarify the biochemical source of HOCl during HOCl-mediated signaling.
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Affiliation(s)
- Stefanie J Pottgiesser
- Department of Medical Microbiology and Hygiene, Institute of Virology, University of Freiburg, Freiburg, Germany
| | - Sonja Heinzelmann
- Department of Medical Microbiology and Hygiene, Institute of Virology, University of Freiburg, Freiburg, Germany
| | - Georg Bauer
- Department of Medical Microbiology and Hygiene, Institute of Virology, University of Freiburg, Freiburg, Germany
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Fu C, Zhang S, Su J, Luo S, Zheng H, Wang J, Qin H, Chen Y, Shen Y, Hu X, Fan X, Luo J, Xie B, Chen R, Chen S. Mutation screening of DUOX2 in Chinese patients with congenital hypothyroidism. J Endocrinol Invest 2015; 38:1219-24. [PMID: 26349762 DOI: 10.1007/s40618-015-0382-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 08/12/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND Congenital hypothyroidism (CH) is the most common neonatal endocrine disorder in infancy. Dual oxidase 2 gene (DUOX2) mutations have been reported to be one of the leading genetic causes of CH. AIM The aim of this study was to screen for DUOX2 gene mutations among CH patients in the Guangxi Zhuang Autonomous Region of China and to define the relationships between DUOX2 genotypes and clinical phenotypes. MATERIALS AND METHODS Blood samples were collected from 45 CH patients in Guangxi Zhuang Autonomous Region, China, and genomic DNA was extracted from peripheral blood leukocytes. All exons of the DUOX2 gene together with their exon-intron boundaries were screened by Sanger sequencing. RESULTS Sequencing analysis of DUOX2 in 45 CH patients revealed ten different variants in thirteen individuals. The variants included five known mutations, namely c.3329G>A (p.R1110Q), c.1588A>T (p.K530X), c.2635G>A (p.E879K), c.2524C>T (p.R842X) and c.4027G>T (p.L1343F), and one novel frame shift variant c.3340delC (p.L1114SfsX56), as well as four novel missense variants c.903G>T (p.W301C), c.2048G>T (p.R683L), c.1736T>C (p.L579P) and c.3413C>A (p.A1138D). The variant p.K530X is highly recurrent in our patient cohort but the clinical phenotypes vary greatly among those carrying this variant. Most patients with monoallelic or biallelic DUOX2 pathogenic variants turned out to be cases of transient congenital hypothyroidism (TCH), while three patients with triallelic DUOX2 pathogenic variants were associated with permanent congenital hypothyroidism (PCH). CONCLUSIONS The prevalence of DUOX2 pathogenic variants was high (29 %) among patients with CH in Guangxi, China. Monoallelic and biallelic DUOX2 pathogenic variants were mainly associated with TCH, while triallelic DUOX2 pathogenic variants were associated with PCH. Our study expanded the DUOX2 mutation spectrum, and functional studies of the novel mutations need to be conducted in the future.
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Affiliation(s)
- C Fu
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - S Zhang
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - J Su
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - S Luo
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - H Zheng
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - J Wang
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - H Qin
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - Y Chen
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - Y Shen
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
- Department of Laboratory Medicine, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave., Boston, MA, 02115, USA
| | - X Hu
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - X Fan
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - J Luo
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - B Xie
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - R Chen
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China
| | - S Chen
- Department of Genetic Metabolism, Children's Hospital, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, People's Republic of China.
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Abe K, Narumi S, Suwanai AS, Hamajima T, Hasegawa T. Pseudodominant inheritance in a family with nonautoimmune hypothyroidism due to biallelic DUOX2 mutations. Clin Endocrinol (Oxf) 2015; 83:394-8. [PMID: 25263060 DOI: 10.1111/cen.12622] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 04/17/2014] [Accepted: 09/23/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Mutations in the dual oxidase 2 gene (DUOX2) is the most common genetic cause of congenital hypothyroidism (CH) in Japan. All previously described DUOX2 mutation-carrying families have followed autosomal recessive inheritance. We report a nonconsanguineous Japanese family harbouring biallelic DUOX2 mutations, which presented an apparently dominant inheritance of nonautoimmune hypothyroidism. DESIGN AND METHODS The proband and her two sisters had been diagnosed as having CH on newborn screening and were treated with levothyroxine. Their mother had subclinical hypothyroidism. We sequenced DUOX2 in the proband and her family members. Pathogenicity of the identified novel mutation (p.Y1347C) was verified in vitro. RESULTS We found that the proband and her sisters were compound heterozygous for a novel DUOX2 mutation p.Y1347C and a previously reported functional variant p.H678R. Unexpectedly, we found that the mother was homozygous for p.H678R. Expression experiments showed that the p.Y1347C mutant had reduced H2 O2 -producing activity, although there was no significant difference in the level of protein expression or localization, between wild type and p.Y1347C. CONCLUSIONS We report a DUOX2 mutation-carrying pedigree presenting pseudodominant inheritance of nonautoimmune hypothyroidism. We speculate that the relatively high frequency of DUOX2 mutations could lead to pseudodominant inheritance in Japan.
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Affiliation(s)
- Kiyomi Abe
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Narumi
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Ayuko S Suwanai
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Takashi Hamajima
- Division of Endocrinology and Metabolism, Aichi Childeren's Health and Medical Center, Aichi, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
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Chang S, Linderholm A, Harper R. DUOX-Mediated Signaling Is Not Required for LPS-Induced Neutrophilic Response in the Airways. PLoS One 2015; 10:e0131810. [PMID: 26148206 PMCID: PMC4493023 DOI: 10.1371/journal.pone.0131810] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/07/2015] [Indexed: 11/30/2022] Open
Abstract
Oxidant production from DUOX1 has been proposed to lead to neutrophil recruitment into the airways when lung homeostasis is compromised. The objective of this study was to determine whether DUOX-derived hydrogen peroxide is required for LPS-induced neutrophil recruitment, using a functional DUOX knock out mouse model. We found that LPS induced profound neutrophilic lung inflammation in both Duoxa+/+ and Duoxa-/- mice between 3h and 24h. Duoxa-/- mice had significantly higher neutrophil influx 24h after LPS instillation despite similar cytokine levels (KC, MIP-2, or TGF-α) between the two groups. These findings suggest that LPS-TLR-4-induced KC or MIP-2 cytokine induction and subsequent neutrophil recruitment in the airway does not require DUOX-derived hydrogen peroxide from airway epithelium.
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Affiliation(s)
- Sandra Chang
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, California 95616, United States
| | - Angela Linderholm
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, California 95616, United States
| | - Richart Harper
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, California 95616, United States
- * E-mail:
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Satoh M, Aso K, Ogikubo S, Yoshizawa-Ogasawara A, Saji T. Hypothyroidism caused by the combination of two heterozygous mutations: one in the TSH receptor gene the other in the DUOX2 gene. J Pediatr Endocrinol Metab 2015; 28:657-61. [PMID: 25928756 DOI: 10.1515/jpem-2014-0078] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 08/15/2014] [Indexed: 11/15/2022]
Abstract
Subjects who are heterozygous for thyroid stimulating hormone receptor (TSHR) gene mutations present various phenotypes that range from euthyroid to hyperthyrotropinemia. Similarly, heterozygous dual oxidase 2 (DUOX2) gene mutations result in variable phenotypes, such as transient congenital hypothyroidism, subclinical hyperthyrotropinemia, and euthyroid in children. Here, we describe an 8-year-old boy who had normal newborn screening results, but who developed nonautoimmune hypothyroidism at the age of 1 year and 8 months of age. He was heterozygous for previously reported R450H-TSHR mutation and heterozygous for a novel double mutant allele A1323T-DUOX2 and L1343F-DUOX2. He needed levothyroxine (l-T4) replacement therapy to keep serum TSH levels within normal limits; l-T4 dose of 2.01-2.65 μg/kg/day corresponded to the dose taken by children homozygous for R450H-TSHR and by children with permanent congenital hypothyroidism. Therefore, the coexistence of a heterozygous TSHR mutation and a heterozygous DUOX2 mutation may have affected the severity of his hypothyroid condition.
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Chai J, Yang XL, Guo MZ, Liu L, Liu SG, Yan SL, Ge YL. [DUOX2 mutations in children with congenital hypothyroidism]. Zhongguo Dang Dai Er Ke Za Zhi 2015; 17:40-44. [PMID: 25616291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To study the features of DUOX2 mutations and genotype-phenotype relationship in children with congenital hypothyroidism (CH), in order to provide evidence for gene diagnosis and gene treatment of CH. METHODS Blood samples were collected from 10 CH children with thyromegaly. Genomic DNA was extracted from peripheral blood leukocytes. All exons of DUOX2 gene were analyzed using PCR and direct sequencing. RESULTS G3632A mutation in the exon 28 of DUOX2 that may result in arginine to histidine substitution at codon 1211 was found in one patient. T2033C mutation in the exon 17 of DUOX2 that may result in histidine to arginine substitution at codon 678 was found in three patients. They were all heterozygous mutations. CONCLUSIONS Heterozygous mutations in DUOX2 may affect protein function and cause CH. The relationship between DUOX2 genotypes and clinical phenotypes is unclear and needs further studies.
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Affiliation(s)
- Jian Chai
- Department of Biochemistry and Molecular Biology, Qingdao University, Qingdao, Shandong 266021, China.
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Abstract
AIMS Acute lung injury (ALI) induced by excessive hyperoxia has been employed as a model of oxidative stress imitating acute respiratory distress syndrome. Under hyperoxic conditions, overloading quantities of reactive oxygen species (ROS) are generated in both lung epithelial and endothelial cells, leading to ALI. Some NADPH oxidase (NOX) family enzymes are responsible for hyperoxia-induced ROS generation in lung epithelial and endothelial cells. However, the molecular mechanisms of ROS production in type II alveolar epithelial cells (AECs) and ALI induced by hyperoxia are poorly understood. RESULTS In this study, we show that dual oxidase 2 (DUOX2) is a key NOX enzyme that affects hyperoxia-induced ROS production, particularly in type II AECs, leading to lung injury. In DUOX2 mutant mice (DUOX2(thyd/thyd)) or mice in which DUOX2 expression is knocked down in the lungs, hyperoxia-induced ALI was significantly lower than in wild-type (WT) mice. DUOX2 was mainly expressed in type II AECs, but not endothelial cells, and hyperoxia-induced ROS production was markedly reduced in primary type II AECs isolated from DUOX2(thyd/thyd) mice. Furthermore, DUOX2-generated ROS are responsible for caspase-mediated cell death, inducing ERK and JNK phophorylation in type II AECs. INNOVATION To date, no role for DUOX2 has been defined in hyperoxia-mediated ALI despite it being a NOX homologue and major ROS source in lung epithelium. CONCLUSION Here, we present the novel finding that DUOX2-generated ROS induce AEC death, leading to hyperoxia-induced lung injury.
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Affiliation(s)
- Min-Ji Kim
- Research Center for Natural Human Defense System, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Jae-Chan Ryu
- Research Center for Natural Human Defense System, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Younghee Kwon
- Research Center for Natural Human Defense System, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Suhee Lee
- Department of Life Science, Ewha Womans University, Seoul, South Korea
| | - Yun Soo Bae
- Department of Life Science, Ewha Womans University, Seoul, South Korea
| | - Joo-Heon Yoon
- Research Center for Natural Human Defense System, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
- The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Ji-Hwan Ryu
- Research Center for Natural Human Defense System, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
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Wang F, Lu K, Yang Z, Zhang S, Lu W, Zhang L, Liu S, Yan S. Genotypes and phenotypes of congenital goitre and hypothyroidism caused by mutations in dual oxidase 2 genes. Clin Endocrinol (Oxf) 2014; 81:452-7. [PMID: 24735383 DOI: 10.1111/cen.12469] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/23/2013] [Accepted: 04/07/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of this study was to screen for DUOX2, TPO and TG mutations in Chinese patients with congenital hypothyroidism (CH) and goitre and to define the relationships between DUOX2 genotypes and clinical phenotypes. METHODS Blood samples were collected from 67 patients with CH and goitre in Shandong Province, China. Genomic DNA was extracted from peripheral blood leucocytes. PCR and direct sequencing were used to analyse all exons of DUOX2, TPO and TG. Detailed medical records were then collected, and the relationship between DUOX2 genotype and the clinical phenotype of CH and goitre caused by DUOX2 mutations was investigated. RESULTS Analysis of DUOX2 revealed nine mutations, including one novel nonsense mutation (p.W734X), six novel missense mutations (p.N100D, p.S660L, p.A1131S, p.W1181G, p.A1206T and p.R1267W) and two recurrent mutations (p.R701X and p.R1110Q) in 10 patients from 10 unrelated families. Monoallelic and compound heterozygous mutations in DUOX2 were associated with permanent or transient CH. No mutation was found after screening all exons of TPO and TG. CONCLUSION Our study identified DUOX2 mutations in 14·9% of Chinese patients investigated with CH and goitre. Because the relationships between DUOX2 genotypes and clinical phenotypes are extremely complex, however, further studies are needed to identify more mutations in known genes which are involved in CH and goitre.
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Affiliation(s)
- Fang Wang
- Department of Endocrinology, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
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Donkó Á, Morand S, Korzeniowska A, Boudreau HE, Zana M, Hunyady L, Geiszt M, Leto TL. Hypothyroidism-associated missense mutation impairs NADPH oxidase activity and intracellular trafficking of Duox2. Free Radic Biol Med 2014; 73:190-200. [PMID: 24853759 PMCID: PMC4111973 DOI: 10.1016/j.freeradbiomed.2014.05.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 04/10/2014] [Accepted: 05/12/2014] [Indexed: 01/06/2023]
Abstract
In the thyroid gland Duox2-derived H2O2 is essential for thyroid hormone biosynthesis. Several patients were identified with partial or severe iodide organification defects caused by mutation in the gene for Duox2 or its maturation factor, DuoxA2. A Duox2-deficient (Duox2(thyd)) mouse model enabled in vivo investigation of its critical function in thyroid tissues, but its roles proposed in host defense or other innate responses in nonthyroid tissues remain less certain. These mice carry a spontaneous DUOX2 missense mutation, a T→G transversion, in exon 16 that changes the highly conserved valine 674 to glycine and results in severe congenital hypothyroidism. The exact mechanism underlying the effects of the V674G mutation has not been elucidated at the molecular or cellular level. To determine how the V674G mutation leads to congenital hypothyroidism, we introduced the same mutation into human Duox2 or Duox1 cDNAs and expressed them in HEK-293 cells stably expressing the corresponding DuoxA proteins. We found that the valine→glycine mutant Duox proteins fail to produce H2O2, lose their plasma membrane localization pattern, and are retained within the endoplasmic reticulum. The Duox2 mutant binds to DuoxA2, but appears to be unstable owing to this retention. Immunohistochemical staining of Duox2 in murine salivary gland ducts showed that Duox2 in mutant mice loses its condensed apical plasma membrane localization pattern characteristic of wild-type Duox2 and accumulates in punctate vesicular structures within cells. Our findings demonstrate that changing the highly conserved valine 674 in Duox2 leads to impaired subcellular targeting and reactive oxygen species release required for hormonogenesis, resulting in congenital hypothyroidism.
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Affiliation(s)
- Ágnes Donkó
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA; Department of Physiology, Semmelweis University, Budapest, Hungary; "Lendület" Peroxidase Enzyme Research Group of the Semmelweis University and the Hungarian Academy of Sciences, Budapest, Hungary
| | - Stanislas Morand
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
| | - Agnieszka Korzeniowska
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
| | - Howard E Boudreau
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
| | - Melinda Zana
- Department of Physiology, Semmelweis University, Budapest, Hungary; "Lendület" Peroxidase Enzyme Research Group of the Semmelweis University and the Hungarian Academy of Sciences, Budapest, Hungary
| | - László Hunyady
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Miklós Geiszt
- Department of Physiology, Semmelweis University, Budapest, Hungary; "Lendület" Peroxidase Enzyme Research Group of the Semmelweis University and the Hungarian Academy of Sciences, Budapest, Hungary
| | - Thomas L Leto
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA.
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Rada B, Park JJ, Sil P, Geiszt M, Leto TL. NLRP3 inflammasome activation and interleukin-1β release in macrophages require calcium but are independent of calcium-activated NADPH oxidases. Inflamm Res 2014; 63:821-30. [PMID: 25048991 DOI: 10.1007/s00011-014-0756-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 06/18/2014] [Accepted: 07/02/2014] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE AND DESIGN We studied the involvement of calcium and calcium-activated NADPH oxidases in NLRP3 inflammasome activation and IL-1β release to better understand inflammasome signaling in macrophages. MATERIAL OR SUBJECTS Human volunteer blood donors were recruited to isolate monocytes to differentiate them into macrophages. Wild-type or DUOX1-deficient C57/B6 mice were used to prepare bone marrow-derived macrophages. TREATMENT Murine or human macrophages were treated in vitro with NLRP3 inflammasome agonists (ATP, silica crystals) or calcium agonists (thapsigargin, ionomycin) in calcium-containing or calcium-free medium. METHODS Intracellular calcium changes were followed by measuring FURA2-based fluorescence. Gene expression changes were measured by quantitative real-time PCR. Protein expression was assessed by western blotting. Enzymatic activity was measured by fluorescence caspase-1 activity assay. IL-1β release was determined by ELISA. ELISA data were analyzed by ANOVA and Tukey's post hoc test. RESULTS Our data show that calcium is essential for IL-1β release in human macrophages. Increases in cytosolic calcium alone lead to IL-1β secretion. Calcium removal blocks caspase-1 activation. Human macrophages express Duox1, a calcium-regulated NADPH oxidase that produces reactive oxygen species. However, Duox1-deficient murine macrophages show normal IL-1β release. CONCLUSIONS Human macrophage inflammasome activation and IL-1β secretion requires calcium but does not involve NADPH oxidases.
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Affiliation(s)
- Balázs Rada
- Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 12441 Parklawn Drive, Rockville, MD, 20852, USA,
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Haberman Y, Tickle TL, Dexheimer PJ, Kim MO, Tang D, Karns R, Baldassano RN, Noe JD, Rosh J, Markowitz J, Heyman MB, Griffiths AM, Crandall WV, Mack DR, Baker SS, Huttenhower C, Keljo DJ, Hyams JS, Kugathasan S, Walters TD, Aronow B, Xavier RJ, Gevers D, Denson LA. Pediatric Crohn disease patients exhibit specific ileal transcriptome and microbiome signature. J Clin Invest 2014; 124:3617-33. [PMID: 25003194 DOI: 10.1172/jci75436] [Citation(s) in RCA: 366] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 05/29/2014] [Indexed: 12/13/2022] Open
Abstract
Interactions between the host and gut microbial community likely contribute to Crohn disease (CD) pathogenesis; however, direct evidence for these interactions at the onset of disease is lacking. Here, we characterized the global pattern of ileal gene expression and the ileal microbial community in 359 treatment-naive pediatric patients with CD, patients with ulcerative colitis (UC), and control individuals. We identified core gene expression profiles and microbial communities in the affected CD ilea that are preserved in the unaffected ilea of patients with colon-only CD but not present in those with UC or control individuals; therefore, this signature is specific to CD and independent of clinical inflammation. An abnormal increase of antimicrobial dual oxidase (DUOX2) expression was detected in association with an expansion of Proteobacteria in both UC and CD, while expression of lipoprotein APOA1 gene was downregulated and associated with CD-specific alterations in Firmicutes. The increased DUOX2 and decreased APOA1 gene expression signature favored oxidative stress and Th1 polarization and was maximally altered in patients with more severe mucosal injury. A regression model that included APOA1 gene expression and microbial abundance more accurately predicted month 6 steroid-free remission than a model using clinical factors alone. These CD-specific host and microbe profiles identify the ileum as the primary inductive site for all forms of CD and may direct prognostic and therapeutic approaches.
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Padron AS, Neto RAL, Pantaleão TU, de Souza dos Santos MC, Araujo RL, de Andrade BM, da Silva Leandro M, de Castro JPSW, Ferreira ACF, de Carvalho DP. Administration of 3,5-diiodothyronine (3,5-T2) causes central hypothyroidism and stimulates thyroid-sensitive tissues. J Endocrinol 2014; 221:415-27. [PMID: 24692290 PMCID: PMC4045230 DOI: 10.1530/joe-13-0502] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 03/26/2014] [Accepted: 03/31/2014] [Indexed: 12/18/2022]
Abstract
In general, 3,5-diiodothyronine (3,5-T2) increases the resting metabolic rate and oxygen consumption, exerting short-term beneficial metabolic effects on rats subjected to a high-fat diet. Our aim was to evaluate the effects of chronic 3,5-T2 administration on the hypothalamus-pituitary-thyroid axis, body mass gain, adipose tissue mass, and body oxygen consumption in Wistar rats from 3 to 6 months of age. The rats were treated daily with 3,5-T2 (25, 50, or 75 μg/100 g body weight, s.c.) for 90 days between the ages of 3 and 6 months. The administration of 3,5-T2 suppressed thyroid function, reducing not only thyroid iodide uptake but also thyroperoxidase, NADPH oxidase 4 (NOX4), and thyroid type 1 iodothyronine deiodinase (D1 (DIO1)) activities and expression levels, whereas the expression of the TSH receptor and dual oxidase (DUOX) were increased. Serum TSH, 3,3',5-triiodothyronine, and thyroxine were reduced in a 3,5-T2 dose-dependent manner, whereas oxygen consumption increased in these animals, indicating the direct action of 3,5-T2 on this physiological variable. Type 2 deiodinase activity increased in both the hypothalamus and the pituitary, and D1 activities in the liver and kidney were also increased in groups treated with 3,5-T2. Moreover, after 3 months of 3,5-T2 administration, body mass and retroperitoneal fat pad mass were significantly reduced, whereas the heart rate and mass were unchanged. Thus, 3,5-T2 acts as a direct stimulator of energy expenditure and reduces body mass gain; however, TSH suppression may develop secondary to 3,5-T2 administration.
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Affiliation(s)
- Alvaro Souto Padron
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ruy Andrade Louzada Neto
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, BrazilLaboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thiago Urgal Pantaleão
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria Carolina de Souza dos Santos
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renata Lopes Araujo
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruno Moulin de Andrade
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Monique da Silva Leandro
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - João Pedro Saar Werneck de Castro
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Andrea Claudia Freitas Ferreira
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Denise Pires de Carvalho
- Laboratório de Fisiologia Endócrina Doris RosenthalInstituto de Biofísica Carlos Chagas Filho and Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (INPeTAM), CCS-Bloco G- Cidade Universitria, Ilha do Fundo, Rio de Janeiro 21949-900, BrazilLaboratório de Biologia do ExercícioEscola de Educação Física e Desportos, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Marique L, Van Regemorter V, Gérard AC, Craps J, Senou M, Marbaix E, Rahier J, Daumerie C, Mourad M, Lengelé B, Colin IM, Many MC. The expression of dual oxidase, thyroid peroxidase, and caveolin-1 differs according to the type of immune response (TH1/TH2) involved in thyroid autoimmune disorders. J Clin Endocrinol Metab 2014; 99:1722-32. [PMID: 24476075 DOI: 10.1210/jc.2013-3469] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Hashimoto's thyroiditis (HT) and Graves' disease (GD) are thyroid autoimmune disorders driven by Th1 and Th2 immune responses, respectively. Caveolin-1 (Cav-1), thyroid peroxidase (TPO), and dual oxidase (DUOX) are thought to be part of the thyroxisome, which is essential to maintain thyroid hormone synthesis, at the apical membrane. OBJECTIVES To analyze the thyroxisome in HT and GD thyroids, we investigated Cav-1, DUOX, and TPO expression as well as markers of oxidative stress (OS), cell proliferation, apoptosis, and antioxidant defenses. The effects of cytokines on Cav-1 expression were analyzed in vitro. RESULTS In HT, the decrease in Cav-1, DUOX, and TPO expression was marked in follicles having the morphological aspect of active follicles in normal glands and thus called active-like follicles. T4 was not detected in the colloid but in the cytoplasm as well as DUOX and TPO. These abnormalities were associated with increased OS and cell damage. In the hypofunctioning follicles of HT and normal thyroids, Cav-1, DUOX, and TPO were not expressed. In GD, they were expressed at the apical pole of thyrocytes, and T4 accumulated in the colloid of all follicles. Th1 cytokines IL-1α/interferonγ decreased Cav-1 expression in vitro, whereas the Th2 cytokine IL-4 had no effect. CONCLUSION Th1 cytokine-induced down-regulation of Cav-1 could be responsible for intracytoplasmic T4 synthesis and mislocalization of DUOX and TPO, suggesting an important role for Cav-1 in the preservation of thyroxisome integrity. The thyroxisome's disruption, leading to uncontrolled OS and cell apoptosis, is a key, event in HT pathogenesis.
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Affiliation(s)
- Lancelot Marique
- Pôle de Morphologie (L.M., V.V.R., A.C.G., J.C., M.S., B.L., I.M.C., M.-C.M.), Institut de Recherche Expérimentale et Clinique, Départements d'Anatomo-Pathologie (E.M., J.R.), d'Endocrinologie (C.D.), and de Chirurgie Endocrinienne et de Transplantation rénale (M.M.), Secteur des Sciences de la Santé, Faculté de Médecine, Université catholique de Louvain, B-1200 Brussels, Belgium
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