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Endesfelder S, Schmitz T, Bührer C. Bilirubin Exerts Protective Effects on Alveolar Type II Pneumocytes in an In Vitro Model of Oxidative Stress. Int J Mol Sci 2024; 25:5323. [PMID: 38791361 PMCID: PMC11121655 DOI: 10.3390/ijms25105323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Newborn infants face a rapid surge of oxygen and a more protracted rise of unconjugated bilirubin after birth. Bilirubin has a strong antioxidant capacity by scavenging free radicals, but it also exerts direct toxicity. This study investigates whether cultured rat alveolar epithelial cells type II (AEC II) react differently to bilirubin under different oxygen concentrations. The toxic threshold concentration of bilirubin was narrowed down by means of a cell viability test. Subsequent analyses of bilirubin effects under 5% oxygen and 80% oxygen compared to 21% oxygen, as well as pretreatment with bilirubin after 4 h and 24 h of incubation, were performed to determine the induction of apoptosis and the gene expression of associated transcripts of cell death, proliferation, and redox-sensitive transcription factors. Oxidative stress led to an increased rate of cell death and induced transcripts of redox-sensitive signaling pathways. At a non-cytotoxic concentration of 400 nm, bilirubin attenuated oxidative stress-induced responses and possibly mediated cellular antioxidant defense by influencing Nrf2/Hif1α- and NFκB-mediated signaling pathways. In conclusion, the study demonstrates that rat AEC II cells are protected from oxidative stress-induced impairment by low-dose bilirubin.
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Affiliation(s)
- Stefanie Endesfelder
- Department of Neonatology, Charité—Universitätsmedizin Berlin, 13353 Berlin, Germany; (T.S.); (C.B.)
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Niu Q, Du F, Yang X, Yang X, Wang X. Carbon monoxide-releasing molecule 2 inhibits inflammation associated with intestinal ischemia-reperfusion injury in a rat model of hemorrhagic shock. Int Immunopharmacol 2022; 113:109441. [DOI: 10.1016/j.intimp.2022.109441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/28/2022] [Accepted: 11/06/2022] [Indexed: 11/24/2022]
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Acertannin attenuates LPS-induced inflammation by interrupting the binding of LPS to the TLR4/MD2 complex and activating Nrf2-mediated HO-1 activation. Int Immunopharmacol 2022; 113:109344. [DOI: 10.1016/j.intimp.2022.109344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/01/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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Target Nuclear Factor Erythroid 2-Related Factor 2 in Pulmonary Hypertension: Molecular Insight into Application. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7845503. [PMID: 35707273 PMCID: PMC9192195 DOI: 10.1155/2022/7845503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 11/17/2022]
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2) is a key transcription factor involved in maintaining redox balance and activates the expression of downstream antioxidant enzymes. Nrf2 has received wide attention considering its crucial role in oxidative and electrophilic stress. Large amounts of studies have demonstrated the protective role of Nrf2 activation in various pulmonary hypertension (pH) models. Additionally, various kinds of natural phytochemicals acting as Nrf2 activators prevent the development of pH and provide a novel and promising therapeutic insight for the treatment of pH. In the current review, we give a brief introduction of Nrf2 and focus on the role and mechanism of Nrf2 in the pathophysiology of pH and then review the relevant research of Nrf2 agonists in pH in both experimental research and clinical trials.
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Dai C, Wang Z, Deng Z, Wu F, Yang H, Xiao S, Wen X, Zheng Y, Xu J, Lu L, Zhao N, Huang P, Zhou Y, Ran P. Association Between Serum Total Bilirubin Level and Lung Function Decline in Patients with COPD: Results from a Pooled Study. Int J Chron Obstruct Pulmon Dis 2022; 17:1031-1039. [PMID: 35547779 PMCID: PMC9084194 DOI: 10.2147/copd.s360485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/30/2022] [Indexed: 11/23/2022] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Cuiqiong Dai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Zihui Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Zhishan Deng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Fan Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Huajing Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Shan Xiao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Xiang Wen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Youlan Zheng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Jianwu Xu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Lifei Lu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Ningning Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Peiyu Huang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Yumin Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Pixin Ran
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
- Correspondence: Pixin Ran; Yumin Zhou, The State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No. 195 Dongfeng Xi Road, Guangzhou, 510000, People’s Republic of China, Tel +86-020 83205187, Fax +86-020 81340482, Email ;
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Butein Inhibits Oxidative Stress Injury in Rats with Chronic Heart Failure via ERK/Nrf2 Signaling. Cardiovasc Ther 2022; 2022:8684014. [PMID: 35069800 PMCID: PMC8752302 DOI: 10.1155/2022/8684014] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 12/09/2021] [Indexed: 12/25/2022] Open
Abstract
Background Chronic heart failure (CHF) is a serious heart disease resulting from cardiac dysfunction. Oxidative stress is an important factor in aging and disease. Butein, however, has antioxidant properties. To determine the effect of butein on oxidative stress injury in rats, a CHF rat model was established. Methods The CHF rat model was induced by abdominal aortic coarctation (AAC). Rats in CHF+butein and sham+butein group were given 100 mg/kg butein via gavage every day to detect the effect of butein on oxidative stress injury and myocardial dysfunction. The cardiac structural and functional parameters, including the left ventricular end-systolic dimension (LVESD), the left ventricular end-diastolic dimension (LVEDD), the left ventricular ejection fraction (LVEF), and the left ventricular fractional shortening (LVFS), were measured. Oxidative stress was measured through the production of reactive oxygen species (ROS), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and malondialdehyde (MDA). Cardiac injury markers like creatine kinase-MB (CK-MB), lactate dehydrogenase (LDH), and aspartate aminotransferase (AST) were evaluated. Hematoxylin and eosin (H&E) staining was used to observe the myocardial cell morphology. The effect of butein on the extracellular signal-regulated kinase (ERK)/nuclear factor-E2 p45-related factor (Nrf2) signaling was confirmed by Western blot analysis. Results Butein had a significant effect on CHF in animal models. In detail, butein inhibited oxidative stress, relieved cardiac injury, and alleviated myocardial dysfunction. Importantly, butein activated the ERK1/2 pathway, which contributed to Nrf2 activation and subsequent heme oxygenase-1 (HO-1) and glutathione cysteine ligase regulatory subunit (GCLC) induction. Conclusions In this study, butein inhibits oxidative stress injury in CHF rat model via ERK/Nrf2 signaling pathway.
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Dai C, Wang Z, Yang H, Xiao S, Xu J, Deng Z, Wu F, Wen X, Zheng Y, Lu L, Zhao N, Huang P, Zhou Y, Ran P. Association Between Serum Total Bilirubin and COPD: Results from a Cross-Sectional Study and a Bidirectional Mendelian Randomization Analysis. Clin Epidemiol 2022; 14:289-298. [PMID: 35299727 PMCID: PMC8922320 DOI: 10.2147/clep.s353389] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/25/2022] [Indexed: 11/23/2022] Open
Abstract
Background The potential protective role of serum total bilirubin (TB) for chronic obstructive pulmonary disease (COPD) is controversial. We aimed to investigate whether serum TB could prevent airflow limitation (reduce the risk of COPD) and whether these associations were causal or reversely causal. Methods We conducted a multi-center and cross-sectional study including 3069 participants. Logistic regression model (LRM) with restricted cubic spline (RCS) and priori defined quintile categories were used to assess the associations of TB with COPD. Besides, ordinary least squares (OLS) regression model with RCS curves were applied to assess the dose-response relationship between serum TB and airflow limitation (FEV1/FVC). To verify the causal direction between TB and COPD, a bidirectional Mendelian randomization analysis was carried out with GWAS data from European ancestry. Results In the cross-sectional study, the relationship between levels of TB and COPD risk was U shaped (P=0.001), and the low and high concentrations of TB apparently increasing the risk of COPD (OR 1.40, 95% CI 1.07 to 1.82 for less than 9 μmol/L; OR 1.36, 95% CI 1.06 to 1.76 for 9.01-1 0.88 μmol/L; OR 1.50, 95% CI 1.16 to 1.95 for more than 13 μmol/L). There was a significant non-linear relationship between TB and FEV1/FVC (non-linear p=0.004). Furthermore, results of bidirectional Mendelian randomization analysis (OR 1.000; 95% CI 0.983 to 1.017 for MR and OR 0.998; 95% CI 0.976 to 1.020 for reversal MR) did not support the causal effects between serum TB and FEV1/FVC after controlling the effect of potential confounders and revised causality. Conclusion Our study reveals that there was non-linear does-response pattern between serum TB and COPD. However, there was little evidence for the linear causal associations of serum TB with airflow limitation. The relationship of TB with COPD needs further study and careful interpretation.
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Affiliation(s)
- Cuiqiong Dai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Zihui Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Huajing Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Shan Xiao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Jianwu Xu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Zhishan Deng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Fan Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangzhou Laboratory, Bio-Island, Guangzhou, People’s Republic of China
| | - Xiang Wen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Youlan Zheng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Lifei Lu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Ningning Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Peiyu Huang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Yumin Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangzhou Laboratory, Bio-Island, Guangzhou, People’s Republic of China
| | - Pixin Ran
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangzhou Laboratory, Bio-Island, Guangzhou, People’s Republic of China
- Correspondence: Pixin Ran; Yumin Zhou, Tel +86-20 3710 3616, Fax +86-20 81340482, Email ;
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Negoro H, Chatziantonio C, Razzaque MS. Therapeutic potential of 5-aminolevulinic acid and sodium-ferrous citrate for viral insults: relevance to the COVID-19 crisis. Expert Rev Anti Infect Ther 2021; 20:657-661. [DOI: 10.1080/14787210.2022.2020097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hideyuki Negoro
- Department of Project Design, The Graduate School of Project Design, Tokyo, Japan
- Inserm UMR S 1155- Sorbonne University, Tenon Hospital, Paris, France
| | | | - Mohammed S. Razzaque
- Department of Pathology, Lake Erie College of Osteopathic Medicine, Erie, PA, USA
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Mounier NM, Wahdan SA, Gad AM, Azab SS. Role of inflammatory, oxidative, and ER stress signaling in the neuroprotective effect of atorvastatin against doxorubicin-induced cognitive impairment in rats. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:1537-1551. [PMID: 33755739 DOI: 10.1007/s00210-021-02081-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 03/15/2021] [Indexed: 02/06/2023]
Abstract
Doxorubicin (DOX) is a potent chemotherapeutic agent widely used for the treatment of several malignancies. Despite its effectiveness, DOX has been implicated in induced neurotoxicity manifested as cognitive dysfunction with varying degrees, commonly referred to as chemobrain. DOX-induced chemobrain is presumed to be due to cytokine-induced inflammatory, oxidative, and apoptotic responses damaging the brain. Atorvastatin (ATV), 3-hydroxy 3-methylglutaryl co-enzyme A (HMG Co-A) reductase inhibitor, is a cholesterol-lowering statin possessing beneficial pleiotropic effects, including anti-inflammatory, antioxidant, and anti-apoptotic properties. Therefore, this study aims to investigate the potential neuroprotective effects of ATV against DOX-induced cognitive impairment studying the possible involvement of heme oxygenase-1 (HO-1) and endoplasmic reticulum (ER) stress biomarkers. Rats were treated with DOX (2 mg/kg/week), i.p. for 4 weeks. Oral treatment with ATV (10 mg/kg) ameliorated DOX-induced behavioral alterations, protected brain histological features, and attenuated DOX-induced inflammatory, oxidative, and apoptotic biomarkers. In addition, ATV upregulated the protective HO-1 expression levels and downregulated the DOX-induced apoptotic ER stress biomarkers. In conclusion, ATV (10 mg/kg) exhibited neuroprotective properties against DOX-induced cognitive impairment which could possibly be attributed to their anti-inflammatory, antioxidant, and anti-apoptotic effects in the brain.
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Affiliation(s)
- Noha M Mounier
- Egyptian Drug Authority (EDA), Formerly National Organization for Drug Control and Research (NODCAR), Cairo, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Amany M Gad
- Egyptian Drug Authority (EDA), Formerly National Organization for Drug Control and Research (NODCAR), Cairo, Egypt
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Sinai University, East Kantara Branch, New City, El Ismailia, Egypt
| | - Samar S Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
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Pal M, Bao W, Wang R, Liu Y, An X, Mitchell WB, Lobo CA, Minniti C, Shi PA, Manwani D, Yazdanbakhsh K, Zhong H. Hemolysis inhibits humoral B-cell responses and modulates alloimmunization risk in patients with sickle cell disease. Blood 2021; 137:269-280. [PMID: 33152749 PMCID: PMC7820872 DOI: 10.1182/blood.2020008511] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/12/2020] [Indexed: 12/24/2022] Open
Abstract
Red blood cell alloimmunization remains a barrier for safe and effective transfusions in sickle cell disease (SCD), but the associated risk factors remain largely unknown. Intravascular hemolysis, a hallmark of SCD, results in the release of heme with potent immunomodulatory activity, although its effect on SCD humoral response, specifically alloimmunization, remains unclear. Here, we found that cell-free heme suppresses human B-cell plasmablast and plasma cell differentiation by inhibiting the DOCK8/STAT3 signaling pathway, which is critical for B-cell activation, as well as by upregulating heme oxygenase 1 (HO-1) through its enzymatic byproducts, carbon monoxide and biliverdin. Whereas nonalloimmunized SCD B cells were inhibited by exogenous heme, B cells from the alloimmunized group were nonresponsive to heme inhibition and readily differentiated into plasma cells. Consistent with a differential B-cell response to hemolysis, we found elevated B-cell basal levels of DOCK8 and higher HO-1-mediated inhibition of activated B cells in nonalloimmunized compared with alloimmunized SCD patients. To overcome the alloimmunized B-cell heme insensitivity, we screened several heme-binding molecules and identified quinine as a potent inhibitor of B-cell activity, reversing the resistance to heme suppression in alloimmunized patients. B-cell inhibition by quinine occurred only in the presence of heme and through HO-1 induction. Altogether, these data suggest that hemolysis can dampen the humoral B-cell response and that B-cell heme responsiveness maybe a determinant of alloimmunization risk in SCD. By restoring B-cell heme sensitivity, quinine may have therapeutic potential to prevent and inhibit alloimmunization in SCD patients.
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Affiliation(s)
| | | | | | | | - Xiuli An
- Laboratory of Membrane Biology, New York Blood Center, New York, NY
| | - William B Mitchell
- Department of Pediatrics, Montefiore Health Center, Albert Einstein College of Medicine, Children's Hospital at Montefiore, Bronx, NY
| | - Cheryl A Lobo
- Laboratory of Blood-Borne Parasites, New York Blood Center, New York, NY
| | - Caterina Minniti
- Department of Medicine, Division of Hematology, Montefiore Health Center, Albert Einstein College of Medicine, Bronx, NY; and
| | - Patricia A Shi
- Sickle Cell Clinical Research Program, New York Blood Center, New York, NY
| | - Deepa Manwani
- Department of Pediatrics, Montefiore Health Center, Albert Einstein College of Medicine, Children's Hospital at Montefiore, Bronx, NY
| | | | - Hui Zhong
- Laboratory of Immune Regulation, and
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Ischemia-reperfusion Injury in the Transplanted Lung: A Literature Review. Transplant Direct 2021; 7:e652. [PMID: 33437867 PMCID: PMC7793349 DOI: 10.1097/txd.0000000000001104] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 02/07/2023] Open
Abstract
Lung ischemia-reperfusion injury (LIRI) and primary graft dysfunction are leading causes of morbidity and mortality among lung transplant recipients. Although extensive research endeavors have been undertaken, few preventative and therapeutic treatments have emerged for clinical use. Novel strategies are still needed to improve outcomes after lung transplantation. In this review, we discuss the underlying mechanisms of transplanted LIRI, potential modifiable targets, current practices, and areas of ongoing investigation to reduce LIRI and primary graft dysfunction in lung transplant recipients.
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Protective Impact of Edaravone Against ZnO NPs-induced Oxidative Stress in the Human Neuroblastoma SH-SY5Y Cell Line. Cell Mol Neurobiol 2020; 42:1189-1210. [PMID: 33222098 DOI: 10.1007/s10571-020-01011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 11/13/2020] [Indexed: 10/22/2022]
Abstract
Extensive applications of ZnO NPs (zinc oxide nanoparticles) in daily life have created concern about their biotoxicity. Zinc oxide nanoparticles induce oxidative stress, inflammation, and apoptosis in neurons. Edaravone applies antioxidant agent and anti-inflammatory impacts in the different cells, as evaluated in both in vitro and in vivo experimental models. This study is designed to explore, how edaravone would avert mitochondrial impairment in human neuronal cells against ZnO NPs-induced toxicity. Accordingly, we analyzed here whether a pretreatment (for 24 h) with edaravone (10-100 μM) would enhance mitochondrial protection in the human neuroblastoma cells SH-SY5Y against ZnO NPs-induced toxicity. We found that edaravone at 25 μM averted the ZnO NPs-induced decrease in the amounts of adenosine triphosphate (ATP), just as on the activity of the complexes I and V. Also, edaravone induced an antioxidant activity by diminishing the levels of lipid peroxidation, protein carbonylation, and protein nitration in the mitochondrial membranes. Edaravone blocked the ZnO NPs-induced transcription factor nuclear factor-κB (NF-κB) upregulation. The inhibition of the heme oxygenase-1 (HO-1) enzyme by zinc protoporphyrin IX (ZnPP IX, 10 μM) smothered the preventive impacts brought about by edaravone with respect to mitochondrial function and inflammation. After this examination, it can be concluded that edaravone caused cytoprotective impacts in an HO-1-dependent manner in SH-SY5Y cells against ZnO NPs-induced toxicity.
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Romantsik O, Bruschettini M, Ley D. Intraventricular Hemorrhage and White Matter Injury in Preclinical and Clinical Studies. Neoreviews 2020; 20:e636-e652. [PMID: 31676738 DOI: 10.1542/neo.20-11-e636] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Germinal matrix-intraventricular hemorrhage (IVH) occurs in nearly half of infants born at less than 26 weeks' gestation. Up to 50% of survivors with IVH develop cerebral palsy, cognitive deficits, behavioral disorders, posthemorrhagic ventricular dilatation, or a combination of these sequelae. After the initial bleeding and the primary brain injury, inflammation and secondary brain injury might lead to periventricular leukomalacia or diffuse white matter injury. Potential factors that are involved include microglia and astrocyte activation, degradation of blood components with release of "toxic" products, infiltration of the brain by systemic immune cells, death of neuronal and glial cells, and arrest of preoligodendrocyte maturation. In addition, impairment of the blood-brain barrier may play a major role in the pathophysiology. A wide range of animal models has been used to explore causes and mechanisms leading to IVH-induced brain injury. Preclinical studies have identified potential targets for enhancing brain repair. However, little has been elucidated about the effectiveness of potential interventions in clinical studies. A systematic review of available preclinical and clinical studies might help identify research gaps and which types of interventions may be prioritized. Future trials should report clinically robust and long-term outcomes after IVH.
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Affiliation(s)
- Olga Romantsik
- Department of Clinical Sciences Lund, Pediatrics, Lund University, Skane University Hospital, Lund, Sweden
| | - Matteo Bruschettini
- Department of Clinical Sciences Lund, Pediatrics, Lund University, Skane University Hospital, Lund, Sweden
| | - David Ley
- Department of Clinical Sciences Lund, Pediatrics, Lund University, Skane University Hospital, Lund, Sweden
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Kodal JB, Çolak Y, Kobylecki CJ, Vedel-Krogh S, Nordestgaard BG, Afzal S. Smoking Reduces Plasma Bilirubin: Observational and Genetic Analyses in the Copenhagen General Population Study. Nicotine Tob Res 2020; 22:104-110. [PMID: 30202916 DOI: 10.1093/ntr/nty188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 09/05/2018] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Observational studies have found lower concentrations of plasma bilirubin in current smokers compared with former and never smokers. However, whether there is a causal relationship between smoking and bilirubin is unknown. In a Mendelian randomization analysis, we tested the hypothesis that higher tobacco consumption is causally associated with lower concentrations of plasma bilirubin. METHODS We genotyped 103 557 individuals aged 20-100 years from the Copenhagen General Population Study for the CHRNA3 rs1051730 genotype, known to be associated with higher tobacco consumption. Tobacco consumption was defined as daily and cumulative tobacco consumption. RESULTS In observational multivariable-adjusted analyses, a 10 g/day higher daily tobacco consumption was associated with a 0.28 µmol/L (95% confidence interval = 0.20 to 0.35) lower concentration of plasma bilirubin in current smokers, and a 10 pack-year higher cumulative tobacco consumption was associated with a 0.19 µmol/L (0.17 to 0.21) lower concentration of plasma bilirubin in former and current smokers. Using the CHRNA3 rs1051730 genotype as a proxy for daily and cumulative tobacco consumption, the difference in plasma bilirubin per T-allele was -0.12 µmol/L (-0.23 to -0.002) in current smokers and -0.09 µmol/L (-0.15 to -0.01) in current and former smokers combined. Furthermore, observationally bilirubin concentrations increased with time from smoking cessation in former smokers. CONCLUSION Higher daily and cumulative tobacco consumption were associated with lower concentrations of plasma bilirubin in observational and genetic analyses, suggesting that the association is causal. IMPLICATIONS Our results are compatible with two possible interpretations of previous observational studies, either that bilirubin is a mediator of smoking-induced respiratory disease or that the association between plasma bilirubin and respiratory disease stems from residual confounding because of smoking. Future studies should examine whether bilirubin is a causal risk factor for respiratory disease, or merely a marker of smoking status.
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Affiliation(s)
- Jakob B Kodal
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical biochemistry, The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Yunus Çolak
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical biochemistry, The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
| | - Camilla J Kobylecki
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical biochemistry, The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
| | - Signe Vedel-Krogh
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical biochemistry, The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical biochemistry, The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Shoaib Afzal
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of clinical biochemistry, The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark
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16
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Kataura T, Saiki S, Ishikawa KI, Akamatsu W, Sasazawa Y, Hattori N, Imoto M. BRUP-1, an intracellular bilirubin modulator, exerts neuroprotective activity in a cellular Parkinson's disease model. J Neurochem 2020; 155:81-97. [PMID: 32128811 DOI: 10.1111/jnc.14997] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/11/2020] [Accepted: 02/27/2020] [Indexed: 01/20/2023]
Abstract
Bilirubin, the end product of heme redox metabolism, has cytoprotective properties and is an essential metabolite associated with cardiovascular disease, inflammatory bowel disease, type 2 diabetes, and neurodegenerative diseases including Parkinson's disease (PD). PD is characterized by progressive degeneration of nigral dopaminergic neurons and is associated with elevated oxidative stress due to mitochondrial dysfunction. In this study, using a ratiometric bilirubin probe, we revealed that the mitochondrial inhibitor, rotenone, which is widely used to create a PD model, significantly decreased intracellular bilirubin levels in HepG2 cells. Chemical screening showed that BRUP-1 was a top hit that restored cellular bilirubin levels that were lowered by rotenone. We found that BRUP-1 up-regulated the expression level of heme oxygenase-1 (HO-1), one of the rate-limiting enzyme of bilirubin production via nuclear factor erythroid 2-related factor 2 (Nrf2) activation. In addition, we demonstrated that this Nrf2 activation was due to a direct inhibition of the interaction between Nrf2 and Kelch-like ECH-associated protein 1 (Keap1) by BRUP-1. Both HO-1 up-regulation and bilirubin restoration by BRUP-1 treatment were significantly abrogated by Nrf2 silencing. In neuronal PC12D cells, BRUP-1 also activated the Nrf2-HO-1 axis and increased bilirubin production, resulted in the suppression of neurotoxin-induced cell death, reactive oxygen species production, and protein aggregation, which are hallmarks of PD. Furthermore, BRUP-1 showed neuroprotective activity against rotenone-treated neurons derived from induced pluripotent stem cells. These findings provide a new member of Keap1-Nrf2 direct inhibitors and suggest that chemical modulation of heme metabolism using BRUP-1 may be beneficial for PD treatment.
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Affiliation(s)
- Tetsushi Kataura
- Department of Biosciences and Informatics, Keio University, Yokohama, Japan.,Research Fellow, Japan Society for the Promotion of Science, Chiyoda, Tokyo, Japan
| | - Shinji Saiki
- Department of Neurology, Juntendo University School of Medicine, Bunkyo, Tokyo, Japan
| | - Kei-Ichi Ishikawa
- Department of Neurology, Juntendo University School of Medicine, Bunkyo, Tokyo, Japan.,Center for Genomic and Regenerative Medicine, Juntendo University School of Medicine, Bunkyo, Tokyo, Japan
| | - Wado Akamatsu
- Center for Genomic and Regenerative Medicine, Juntendo University School of Medicine, Bunkyo, Tokyo, Japan
| | - Yukiko Sasazawa
- Department of Biosciences and Informatics, Keio University, Yokohama, Japan.,Department of Neurology, Juntendo University School of Medicine, Bunkyo, Tokyo, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Bunkyo, Tokyo, Japan
| | - Masaya Imoto
- Department of Biosciences and Informatics, Keio University, Yokohama, Japan
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17
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Wang H, Gou W, Strange C, Wang J, Nietert PJ, Cloud C, Owzarski S, Shuford B, Duke T, Luttrell L, Lesher A, Papas KK, Herold KC, Clark P, Usmani-Brown S, Kitzmann J, Crosson C, Adams DB, Morgan KA. Islet Harvest in Carbon Monoxide-Saturated Medium for Chronic Pancreatitis Patients Undergoing Islet Autotransplantation. Cell Transplant 2019; 28:25S-36S. [PMID: 31885286 PMCID: PMC7016471 DOI: 10.1177/0963689719890596] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/21/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Stresses encountered during human islet isolation lead to unavoidable β-cell death after transplantation. This reduces the chance of insulin independence in chronic pancreatitis patients undergoing total pancreatectomy and islet autotransplantation. We tested whether harvesting islets in carbon monoxide-saturated solutions is safe and can enhance islet survival and insulin independence after total pancreatectomy and islet autotransplantation. Chronic pancreatitis patients who consented to the study were randomized into carbon monoxide (islets harvested in a carbon monoxide-saturated medium) or control (islets harvested in a normal medium) groups. Islet yield, viability, oxygen consumption rate, β-cell death (measured by unmethylated insulin DNA), and serum cytokine levels were measured during the peri-transplantation period. Adverse events, metabolic phenotypes, and islet function were measured prior and at 6 months post-transplantation. No adverse events directly related to the infusion of carbon monoxide islets were observed. Carbon monoxide islets showed significantly higher viability before transplantation. Subjects receiving carbon monoxide islets had less β-cell death, decreased CCL23, and increased CXCL12 levels at 1 or 3 days post transplantation compared with controls. Three in 10 (30%) of the carbon monoxide subjects and none of the control subjects were insulin independent. This pilot trial showed for the first time that harvesting human islets in carbon monoxide-saturated solutions is safe for total pancreatectomy and islet autotransplantation patients.
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Affiliation(s)
- Hongjun Wang
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Wenyu Gou
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Charlie Strange
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Jingjing Wang
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Paul J. Nietert
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Colleen Cloud
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Stefanie Owzarski
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Betsy Shuford
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Tara Duke
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Louis Luttrell
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Aaron Lesher
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | | | - Kevan C. Herold
- Department of Immunology, Yale University, New Haven, CT, USA
| | - Pamela Clark
- Department of Immunology, Yale University, New Haven, CT, USA
| | | | | | - Craig Crosson
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - David B. Adams
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Katherine A. Morgan
- Department of Surgery, Medical University of South Carolina, Charleston, SC, USA
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18
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Heme oxygenase-1/carbon monoxide as modulators of autophagy and inflammation. Arch Biochem Biophys 2019; 678:108186. [PMID: 31704095 DOI: 10.1016/j.abb.2019.108186] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/10/2019] [Accepted: 11/04/2019] [Indexed: 12/29/2022]
Abstract
Heme oxygenase-1 (HO-1) catalyzes heme degradation to generate biliverdin-IXα, carbon monoxide (CO), and iron. The HO-1/CO system confers cytoprotection in animal models of organ injury and disease, via modulation of inflammation and apoptosis. Recent studies have uncovered novel anti-inflammatory targets of HO-1/CO including regulation of the autophagy and inflammasome pathways. Autophagy is a lysosome-dependent program for the turnover of cellular organelles such as mitochondria, proteins, and pathogens; which may downregulate inflammatory processes. Therapeutic modulation of autophagy by CO has been demonstrated in models of sepsis. The nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3 (NLRP3) inflammasome regulates the maturation of pro-inflammatory cytokines. CO can regulate NLRP3 inflammasome activation and associated pro-inflammatory cytokines production and promote the resolution of inflammation by upregulating the synthesis of specialized pro-resolving mediators (SPMs). Mitochondria may represent a proximal target of HO-1/CO action. HO-1 may localize to mitochondria in response to stress, while CO can moderate mitochondrial dysfunction and regulate mitochondrial autophagy (mitophagy) and biogenesis. The interplay between mitochondrial autophagy, mitochondrial dysfunction, and the regulation and resolution of inflammation may make important contributions to the protection afforded by HO-1/CO in cellular and organ injury models. Recent studies have continued to explore the potential of CO for clinical applications.
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19
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Mn(I)-based photoCORMs for trackable, visible light-induced CO release and photocytotoxicity to cancer cells. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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20
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Wang Y, Yao C, Xu C, Zeng X, Zhou M, Lin Y, Zhang P, Yin P. Carbon monoxide and risk of outpatient visits due to cause-specific diseases: a time-series study in Yichang, China. Environ Health 2019; 18:36. [PMID: 31014335 PMCID: PMC6477706 DOI: 10.1186/s12940-019-0477-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/05/2019] [Indexed: 05/08/2023]
Abstract
BACKGROUND Previous studies showed inconsistent results on risk of increased outpatient visits for cause-specific diseases associated with ambient carbon monoxide (CO). METHODS Daily data for CO exposure and outpatient visits for all-causes and five specific diseases in Yichang, China from 1st January 2016 to 31st December 2017 were collected. Generalised additive models with different lag structures were used to examine the short-term effects of ambient CO on outpatient visits. Potential effect modifications by age, sex and season were examined. RESULTS A total of 5,408,021 outpatient visits were recorded. We found positive and statistically significant associations between CO and outpatient visits for multiple outcomes and all the estimated risks increased with longer moving average lags. An increase of 1 mg/m3 of CO at lag06 (a moving average of lag0 to lag6), was associated with 24.67% (95%CI: 14.48, 34.85%), 21.79% (95%CI: 12.24, 31.35%), 39.30% (95%CI: 25.67, 52.92%), 25.83% (95%CI: 13.91, 37.74%) and 19.04% (95%CI: 8.39, 29.68%) increase in daily outpatient visits for all-cause, respiratory, cardiovascular, genitourinary and gastrointestinal diseases respectively. The associations for all disease categories except for genitourinary diseases were statistically significant and stronger in warm seasons than cool seasons. CONCLUSION Our analyses provide evidences that the CO increased the total and cause-specific outpatient visits and strengthen the rationale for further reduction of CO pollution levels in Yichang. Ambient CO exerted adverse effect on respiratory, cardiovascular, genitourinary, gastrointestinal and neuropsychiatric diseases especially in the warm seasons.
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Affiliation(s)
- Yu Wang
- Department of Anesthesiology, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Chengye Yao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Chengzhong Xu
- Yichang Center for Disease Control and Prevention, 3 Dalian Road, Yichang, 443005 China
| | - Xinying Zeng
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050 China
| | - Maigeng Zhou
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050 China
| | - Yun Lin
- Department of Anesthesiology, Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Pei Zhang
- Yichang Center for Disease Control and Prevention, 3 Dalian Road, Yichang, 443005 China
| | - Peng Yin
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050 China
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21
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Jeong G, Oh J, Kim JS. Glyceollins Modulate Tumor Development and Growth in a Mouse Xenograft Model of Human Colon Cancer in a p53-Dependent Manner. J Med Food 2019; 22:521-528. [PMID: 30924710 DOI: 10.1089/jmf.2018.4290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Glyceollins are soybean-derived phytoalexins that induce the nuclear factor (erythroid-derived 2)-like 2 (Nrf2) signaling pathway, which is involved in the detoxification of carcinogens and the removal of reactive oxygen species (ROS). Recent studies, however, have indicated that Nrf2 induction stimulates the development of pre-existing tumors and confers resistance to chemotherapy by elevating drug metabolism and by efficient scavenging of ROS produced by the Warburg effect, which is regulated, in turn, by the p53 tumor suppressor. This study, therefore, aimed at examining whether glyceollins could accelerate tumor growth in the presence of active p53, using a xenograft BALB/c nude mouse model transplanted subcutaneously with p53 wild-type and p53 null HCT116 human colon cancer cells. Glyceollins were orally administered at a dose of either 1 or 4 mg/kg body weight after xenografting HCT116 cells, and tumor growth and volume were monitored for 2 weeks. A high dose of glyceollins resulted in a significant increase in the average volume of p53 wild-type HCT116 xenografts, but not of p53 null HCT116 xenografts. However, a low dose of glyceollins had no effect on the tumor growth regardless of p53 presence. Interestingly, antioxidant enzymes, including heme oxygenase-1 (HO-1) and NAD(P)H: quinone oxidoreductase, were prominently induced by glyceollins in p53 wild-type xenografts, compared with p53 null xenografts. These results suggest that a high dose of glyceollins possibly promotes the growth of p53 wild-type colon cancer through activation of the Nrf2-mediated signaling pathway and, in particular, strong induction of HO-1 expression. Therefore, the consumption of Nrf2 activators, including glyceollins, should be carefully monitored for patients suffering from certain types of cancer and/or receiving chemotherapy.
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Affiliation(s)
- Gain Jeong
- 1 School of Food Science and Biotechnology (BK21 plus), Kyungpook National University, Daegu, Korea
| | - Jisun Oh
- 1 School of Food Science and Biotechnology (BK21 plus), Kyungpook National University, Daegu, Korea
| | - Jong-Sang Kim
- 1 School of Food Science and Biotechnology (BK21 plus), Kyungpook National University, Daegu, Korea.,2 Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Korea
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22
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Tejero J, Shiva S, Gladwin MT. Sources of Vascular Nitric Oxide and Reactive Oxygen Species and Their Regulation. Physiol Rev 2019; 99:311-379. [PMID: 30379623 DOI: 10.1152/physrev.00036.2017] [Citation(s) in RCA: 290] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide (NO) is a small free radical with critical signaling roles in physiology and pathophysiology. The generation of sufficient NO levels to regulate the resistance of the blood vessels and hence the maintenance of adequate blood flow is critical to the healthy performance of the vasculature. A novel paradigm indicates that classical NO synthesis by dedicated NO synthases is supplemented by nitrite reduction pathways under hypoxia. At the same time, reactive oxygen species (ROS), which include superoxide and hydrogen peroxide, are produced in the vascular system for signaling purposes, as effectors of the immune response, or as byproducts of cellular metabolism. NO and ROS can be generated by distinct enzymes or by the same enzyme through alternate reduction and oxidation processes. The latter oxidoreductase systems include NO synthases, molybdopterin enzymes, and hemoglobins, which can form superoxide by reduction of molecular oxygen or NO by reduction of inorganic nitrite. Enzymatic uncoupling, changes in oxygen tension, and the concentration of coenzymes and reductants can modulate the NO/ROS production from these oxidoreductases and determine the redox balance in health and disease. The dysregulation of the mechanisms involved in the generation of NO and ROS is an important cause of cardiovascular disease and target for therapy. In this review we will present the biology of NO and ROS in the cardiovascular system, with special emphasis on their routes of formation and regulation, as well as the therapeutic challenges and opportunities for the management of NO and ROS in cardiovascular disease.
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Affiliation(s)
- Jesús Tejero
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Sruti Shiva
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Mark T Gladwin
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
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23
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Heme oxygenase-1 induction by hemin prevents oxidative stress-induced acute cholestasis in the rat. Clin Sci (Lond) 2019; 133:117-134. [PMID: 30538149 DOI: 10.1042/cs20180675] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 12/20/2022]
Abstract
We previously demonstrated in in vitro and ex vivo models that physiological concentrations of unconjugated bilirubin (BR) prevent oxidative stress (OS)-induced hepatocanalicular dysfunction and cholestasis. Here, we aimed to ascertain, in the whole rat, whether a similar cholestatic OS injury can be counteracted by heme oxygenase-1 (HO-1) induction that consequently elevates endogenous BR levels. This was achieved through the administration of hemin, an inducer of HO-1, the rate-limiting step in BR generation. We found that BR peaked between 6 and 8 h after hemin administration. During this time period, HO-1 induction fully prevented the pro-oxidant tert-butylhydroperoxide (tBuOOH)-induced drop in bile flow, and in the biliary excretion of bile salts and glutathione, the two main driving forces of bile flow; this was associated with preservation of the membrane localization of their respective canalicular transporters, bile salt export pump (Bsep) and multidrug resistance-associated protein 2 (Mrp2), which are otherwise endocytosed by OS. HO-1 induction counteracted the oxidation of intracellular proteins and membrane lipids induced by tBuOOH, and fully prevented the increase in the oxidized-to-total glutathione (GSHt) ratio, a sensitive parameter of hepatocellular OS. Compensatory elevations of the activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD) were also prevented. We conclude that in vivo HO-1 induction protects the liver from acute oxidative injury, thus preventing consequent cholestasis. This reveals an important role for the induction of HO-1 and the consequently elevated levels of BR in preserving biliary secretory function under OS conditions, thus representing a novel therapeutic tool to limit the cholestatic injury that bears an oxidative background.
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Upregulation of Heme Oxygenase-1 by Hemin Alleviates Sepsis-Induced Muscle Wasting in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:8927104. [PMID: 30533176 PMCID: PMC6250022 DOI: 10.1155/2018/8927104] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/13/2018] [Accepted: 10/04/2018] [Indexed: 11/18/2022]
Abstract
Hemin, an inducer of heme oxygenase-1 (HO-1), can enhance the activation of HO-1. HO-1 exhibits a variety of activities, such as anti-inflammatory, antioxidative, and antiapoptotic functions. The objective of this study was to investigate the effects of hemin on sepsis-induced skeletal muscle wasting and to explore the mechanisms by which hemin exerts its effects. Cecal ligation and perforation (CLP) was performed to create a sepsis mouse model. Mice were randomly divided into four groups: control, CLP, CLP plus group, and CLP-hemin-ZnPP (a HO-1 inhibitor). The weight of the solei from the mice was measured, and histopathology was examined. Cytokines were measured by enzyme-linked immunosorbent assay (ELISA). Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blotting were used to assess the expression levels of HO-1 and atrogin-1. Furthermore, we investigated the antioxidative effects of HO-1 by detecting malondialdehyde (MDA) levels and superoxide dismutase (SOD) activity. CLP led to dramatic skeletal muscle weakness and atrophy, but pretreatment with hemin protected mice against CLP-mediated muscle atrophy. Hemin also induced high HO-1 expression, which resulted in suppressed proinflammatory cytokine and reactive oxygen species (ROS) production. The expression of MuRF1 and atrogin-1, two ubiquitin ligases of the ubiquitin-proteasome system- (UPS-) mediated proteolysis, was also inhibited by increased HO-1 levels. Hemin-mediated increases in HO-1 expression exert protective effects on sepsis-induced skeletal muscle atrophy at least partly by inhibiting the expression of proinflammatory cytokines, UPS-mediated proteolysis, and ROS activation. Therefore, hemin might be a new treatment target against sepsis-induced skeletal muscle atrophy.
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Therapeutic Modulation of Virus-Induced Oxidative Stress via the Nrf2-Dependent Antioxidative Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:6208067. [PMID: 30515256 PMCID: PMC6234444 DOI: 10.1155/2018/6208067] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 09/24/2018] [Indexed: 12/17/2022]
Abstract
Virus-induced oxidative stress plays a critical role in the viral life cycle as well as the pathogenesis of viral diseases. In response to reactive oxygen species (ROS) generation by a virus, a host cell activates an antioxidative defense system for its own protection. Particularly, a nuclear factor erythroid 2p45-related factor 2 (Nrf2) pathway works in a front-line for cytoprotection and detoxification. Recently, a series of studies suggested that a group of clinically relevant viruses have the capacity for positive and negative regulations of the Nrf2 pathway. This virus-induced modulation of the host antioxidative response turned out to be a crucial determinant for the progression of several viral diseases. In this review, virus-specific examples of positive and negative modulations of the Nrf2 pathway will be summarized first. Then a number of successful genetic and pharmacological manipulations of the Nrf2 pathway for suppression of the viral replication and the pathogenesis-associated oxidative damage will be discussed later. Understanding of the interplay between virus-induced oxidative stress and antioxidative host response will aid in the discovery of potential antiviral supplements for better management of viral diseases.
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Ibrahim KS, El-Yazbi AF, El-Gowelli HM, El-Mas MM. Heme oxygenase byproducts variably influences myocardial and autonomic dysfunctions induced by the cyclosporine/diclofenac regimen in female rats. Biomed Pharmacother 2018; 101:889-897. [DOI: 10.1016/j.biopha.2018.03.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/04/2018] [Accepted: 03/06/2018] [Indexed: 12/15/2022] Open
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27
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Kim YK, Lee KB, Kim SY, Bode K, Jang YS, Kwon TY, Jeon MH, Lee MH. Gas formation and biological effects of biodegradable magnesium in a preclinical and clinical observation. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:324-335. [PMID: 29707071 PMCID: PMC5917435 DOI: 10.1080/14686996.2018.1451717] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 06/02/2023]
Abstract
Magnesium alloys are biodegradable metals receiving increasing attention, but the clinical applications of these materials are delayed by concerns over the rapid corrosion rate and gas formation. Unlike corrosion, which weakens mechanical properties, the gas formation issue has received little attention. Therefore, we evaluated the gas formation and biological effects for Mg implants through preclinical (immersed in Earle's balanced salt solution and in vivo) and clinical studies. The immersion test examined the gas volume and composition. The in vivo study also examined gas volume and histological analysis. The clinical study examined the gas volume and safety after Mg screw metatarsal fixation. Gas was mainly composed of H2, CO and CO2. Maximum volumes of gas formed after 5 days for in vivo and 7 days in clinical study. Within the clinical examination, two superficial wound complications healed with local wound care. Osteolytic lesions in the surrounding metaphysis of the Mg screw insertion developed in all cases and union occurred at 3 months. Mg implants released gas with variable volumes and composition (H2, CO, and CO2), with no long-term toxic effects on the surrounding tissue. The implants enabled bone healing, although complications of wound breakdown and osteolytic lesions developed.
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Affiliation(s)
- Yu-Kyoung Kim
- Department of Dental Biomaterials and Institute of Biodegradable Materials, Institute of Oral Bioscience and School of Dentistry (Plus BK21 Program), Chonbuk National University, Jeon Ju, South Korea
| | - Kwang-Bok Lee
- Department of Orthopedic Surgery, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, Jeon Ju, South Korea
| | - Seo-Young Kim
- Department of Dental Biomaterials and Institute of Biodegradable Materials, Institute of Oral Bioscience and School of Dentistry (Plus BK21 Program), Chonbuk National University, Jeon Ju, South Korea
| | - Ken Bode
- Department of Orthopedic Surgery, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, Jeon Ju, South Korea
| | - Yong-Seok Jang
- Department of Dental Biomaterials and Institute of Biodegradable Materials, Institute of Oral Bioscience and School of Dentistry (Plus BK21 Program), Chonbuk National University, Jeon Ju, South Korea
| | - Tae-Young Kwon
- Department of Orthopedic Surgery, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, Jeon Ju, South Korea
| | - Moo Heon Jeon
- Department of Orthopedic Surgery, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Chonbuk National University Medical School, Jeon Ju, South Korea
| | - Min-Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable Materials, Institute of Oral Bioscience and School of Dentistry (Plus BK21 Program), Chonbuk National University, Jeon Ju, South Korea
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Aliee A, Zahedi Avval1 F, Taheri H, Moghadam SM, Soukhtanloo M, Hamidi Alamdari D, Fazeli B. The Status of Nitric Oxide and its Backup, Heme Oxygenase 1, in Thromboangiitis Obliterans. Rep Biochem Mol Biol 2018; 6:197-202. [PMID: 29766003 PMCID: PMC5941125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/02/2017] [Indexed: 06/08/2023]
Abstract
BACKGROUND Until recently, a gene polymorphism in the promoter region of endothelial nitric oxide synthase has been suggested as a risk factor for thromboangiitis obliterans (TAO) development. The aim of this study was to compare the metabolites of nitric oxide (NO) and its backup, heme-oxygenase-1 (HMOX1), between TAO patients and those of a smoking control group matched by race, age, sex, and smoking habits. METHODS Twenty-four male Caucasian TAO patients and 20 male Caucasian controls enrolled in the study. Their smoking habits were matched based on the serum cotinine levels of 17 of the TAO patients and the 20 controls. A colorimetric kit was used to measure NO, and an enzyme-linked immunosorbent assay kit was used to measure cotinine and HMOX1 levels. RESULTS The mean serum level of NO metabolites in the TAO group was significantly less than in the controls (p = 0.03) and also significantly less in the patients with below-knee amputations than in non-amputees (p= 0.018). Also, HMOX1 was significantly greater in the TAO patients than in the controls (p= 0.01). No significant correlation was found between NO and HMOX1 (p = 0.054). CONCLUSION Nitric oxide may play a pivotal role in TAO development and its outcome. However, the intact HMOX1 pathway may demonstrate the unique role of NO, which cannot be compensated for by HMOX1 and whose absence may make patients susceptible to developing TAO. In addition, another pathway besides NO, with influence on vascular tone and hemostasis, might be involved in TAO development, such as the autonomic nervous system. Further studies are suggested regarding these issues.
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Affiliation(s)
- Ali Aliee
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Student Research Committee, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Farnaz Zahedi Avval1
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Hossein Taheri
- General Surgery Department, Farabi Hospital, Kowsar Blvd, Mashhad, Iran.
| | - Saeedeh Mehraban Moghadam
- Inflammation and Inflammatory Diseases Division of Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohammad Soukhtanloo
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Daryoush Hamidi Alamdari
- Surgical Oncology Research Center, Emam Reza Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Bahare Fazeli
- Inflammation and Inflammatory Diseases Division of Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
- VAS, European Independent Foundation in Angiology/Vascular Medicine. Milan, Italy.
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Joe Y, Kim S, Kim HJ, Park J, Chen Y, Park HJ, Jekal SJ, Ryter SW, Kim UH, Chung HT. FGF21 induced by carbon monoxide mediates metabolic homeostasis via the PERK/ATF4 pathway. FASEB J 2018; 32:2630-2643. [PMID: 29295856 PMCID: PMC5901375 DOI: 10.1096/fj.201700709rr] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The prevalence of metabolic diseases, including type 2 diabetes, obesity, and cardiovascular disease, has rapidly increased, yet the molecular mechanisms underlying the metabolic syndrome, a primary risk factor, remain incompletely understood. The small, gaseous molecule carbon monoxide (CO) has well-known anti-inflammatory, antiproliferative, and antiapoptotic effects in a variety of cellular- and tissue-injury models, whereas its potential effects on the complex pathways of metabolic disease remain unknown. We demonstrate here that CO can alleviate metabolic dysfunction in vivo and in vitro. We show that CO increased the expression and section of the fibroblast growth factor 21 (FGF21) in hepatocytes and liver. CO-stimulated PERK activation and enhanced the levels of FGF21 via the eIF2α–ATF4 signaling pathway. The induction of FGF21 by CO attenuated endoreticulum stress- or diet-induced, obesity-dependent hepatic steatosis. Moreover, CO inhalation lowered blood glucose levels, enhanced insulin sensitivity, and promoted energy expenditure by stimulating the emergence of beige adipose cells from white adipose cells. In conclusion, we suggest that CO acts as a potent inducer of FGF21 expression and that CO critically depends on FGF21 to regulate metabolic homeostasis.—Joe, Y., Kim, S., Kim, H. J., Park, J., Chen, Y., Park, H.-J., Jekal, S.-J., Ryter, S. W., Kim, U. H., Chung, H. T. FGF21 induced by carbon monoxide mediates metabolic homeostasis via the PERK/ATF4 pathway.
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Affiliation(s)
- Yeonsoo Joe
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
| | - Sena Kim
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
| | - Hyo Jeong Kim
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
| | - Jeongmin Park
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
| | - Yingqing Chen
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
| | - Hyeok-Jun Park
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
| | - Seung-Joo Jekal
- Wonkwang Health Science University, Iksan, Jeonbuk, South Korea
| | - Stefan W Ryter
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA; and
| | - Uh Hyun Kim
- National Creative Research Laboratory for Ca2+ Signaling Network, Chonbuk National University Medical School, Jeonju, South Korea
| | - Hun Taeg Chung
- Meta-Inflammation Research Institute of Basic Research, School of Biological Sciences, University of Ulsan, Ulsan, South Korea
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Zhang H, Barralet JE. Mimicking oxygen delivery and waste removal functions of blood. Adv Drug Deliv Rev 2017; 122:84-104. [PMID: 28214553 DOI: 10.1016/j.addr.2017.02.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 02/13/2017] [Accepted: 02/13/2017] [Indexed: 12/20/2022]
Abstract
In addition to immunological and wound healing cell and platelet delivery, ion stasis and nutrient supply, blood delivers oxygen to cells and tissues and removes metabolic wastes. For decades researchers have been trying to develop approaches that mimic these two immediately vital functions of blood. Oxygen is crucial for the long-term survival of tissues and cells in vertebrates. Hypoxia (oxygen deficiency) and even at times anoxia (absence of oxygen) can occur during organ preservation, organ and cell transplantation, wound healing, in tumors and engineering of tissues. Different approaches have been developed to deliver oxygen to tissues and cells, including hyperbaric oxygen therapy (HBOT), normobaric hyperoxia therapy (NBOT), using biochemical reactions and electrolysis, employing liquids with high oxygen solubility, administering hemoglobin, myoglobin and red blood cells (RBCs), introducing oxygen-generating agents, using oxygen-carrying microparticles, persufflation, and peritoneal oxygenation. Metabolic waste accumulation is another issue in biological systems when blood flow is insufficient. Metabolic wastes change the microenvironment of cells and tissues, influence the metabolic activities of cells, and ultimately cause cell death. This review examines advances in blood mimicking systems in the field of biomedical engineering in terms of oxygen delivery and metabolic waste removal.
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A Phase II Clinical Trial of Low-Dose Inhaled Carbon Monoxide in Idiopathic Pulmonary Fibrosis. Chest 2017; 153:94-104. [PMID: 29100885 DOI: 10.1016/j.chest.2017.09.052] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 08/11/2017] [Accepted: 09/27/2017] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Preclinical studies have demonstrated that low-dose carbon monoxide (CO) can abrogate experimental lung fibrosis. To test the therapeutic role of inhaled CO, we designed a clinical study in patients with idiopathic pulmonary fibrosis (IPF). METHODS We conducted a multicenter, phase IIa, double-blinded, sham-controlled, clinical trial. Patients with IPF were randomized to treatment with inhaled CO at 100 to 200 parts per million or to inhaled 21% oxygen for 2 h daily, twice weekly, for 12 weeks. The primary study end point was the difference in change in matrix metalloproteinase-7 (MMP7) serum concentration after 12 weeks of treatment. Secondary end points included pulmonary function test measures, 6-min walk distance, rates of adverse events, acute exacerbation, hospitalization and death, and quality of life measures. RESULTS Fifty-eight subjects were randomized to treatment with inhaled CO (n = 29) or placebo (n = 29). Despite modest increases in CO blood levels, the change in MMP7 concentrations after 12 weeks of treatment did not significantly differ between the study arms (MMP7 difference at week 12, -0.90 ng/mL; 95% CI, -4.18 to 2.38 ng/mL). No differences were observed in physiologic measures, incidence of acute exacerbations, hospitalization, death, or patient-reported outcomes. Importantly, no differences in distribution of adverse events were noted between the treatment arms. CONCLUSIONS Inhaled CO is well tolerated and can be safely administered to patients with IPF in the ambulatory setting; however, inhaled CO did not result in significant changes in study end points. Our findings support testing the efficacy of inhaled therapies in future IPF clinical trials. TRIAL REGISTRY ClinicalTrials.gov; No.: NCT01214187; URL: www.clinicaltrials.gov.
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Chen Y, Yuan T, Zhang H, Yan Y, Wang D, Fang L, Lu Y, Du G. Activation of Nrf2 Attenuates Pulmonary Vascular Remodeling via Inhibiting Endothelial-to-Mesenchymal Transition: an Insight from a Plant Polyphenol. Int J Biol Sci 2017; 13:1067-1081. [PMID: 28924387 PMCID: PMC5599911 DOI: 10.7150/ijbs.20316] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 07/26/2017] [Indexed: 12/20/2022] Open
Abstract
The endothelial-to-mesenchymal transition (EndMT) has been demonstrated to be involved in pulmonary vascular remodeling. It is partly attributed to oxidative and inflammatory stresses in endothelial cells. In current study, we conducted a series of experiments to clarify the effect of salvianolic acid A (SAA), a kind of polyphenol compound, in the process of EndMT in human pulmonary arterial endothelial cells and in vivo therapeutic efficacy on vascular remodeling in monocrotaline (MCT)-induced EndMT. EndMT was induced by TGFβ1 in human pulmonary arterial endothelial cells (HPAECs). SAA significantly attenuated EndMT, simultaneously inhibited cell migration and reactive oxygen species (ROS) formation. In MCT-induced pulmonary arterial hypertension (PAH) model, SAA improved vascular function, decreased TGFβ1 level and inhibited inflammation. Mechanistically, SAA stimulated Nrf2 translocation and subsequent heme oxygenase-1 (HO-1) up-regulation. The effect of SAA on EndMT in vitro was abolished by ZnPP, a HO-1 inhibitor. In conclusion, this study indicates a deleterious impact of oxidative stress on EndMT. Polyphenol antioxidant treatment may provide an adjunctive action to alleviate pulmonary vascular remodeling via inhibiting EndMT.
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Affiliation(s)
- Yucai Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
| | - Tianyi Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening
| | - Huifang Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
| | - Yu Yan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
| | - Danshu Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
| | - Lianhua Fang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
| | - Yang Lu
- Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Guanhua Du
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening
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Agyemang AA, Sveinsdóttir K, Vallius S, Sveinsdóttir S, Bruschettini M, Romantsik O, Hellström A, Smith LEH, Ohlsson L, Holmqvist B, Gram M, Ley D. Cerebellar Exposure to Cell-Free Hemoglobin Following Preterm Intraventricular Hemorrhage: Causal in Cerebellar Damage? Transl Stroke Res 2017; 8:10.1007/s12975-017-0539-1. [PMID: 28601919 PMCID: PMC5590031 DOI: 10.1007/s12975-017-0539-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/09/2017] [Indexed: 11/05/2022]
Abstract
Decreased cerebellar volume is associated with intraventricular hemorrhage (IVH) in very preterm infants and may be a principal component in neurodevelopmental impairment. Cerebellar deposition of blood products from the subarachnoid space has been suggested as a causal mechanism in cerebellar underdevelopment following IVH. Using the preterm rabbit pup IVH model, we evaluated the effects of IVH induced at E29 (3 days prior to term) on cerebellar development at term-equivalent postnatal day 0 (P0), term-equivalent postnatal day 2 (P2), and term-equivalent postnatal day 5 (P5). Furthermore, the presence of cell-free hemoglobin (Hb) in cerebellar tissue was characterized, and cell-free Hb was evaluated as a causal factor in the development of cerebellar damage following preterm IVH. IVH was associated with a decreased proliferative (Ki67-positive) portion of the external granular layer (EGL), delayed Purkinje cell maturation, and activated microglia in the cerebellar white matter. In pups with IVH, immunolabeling of the cerebellum at P0 demonstrated a widespread presence of cell-free Hb, primarily distributed in the white matter and the molecular layer. Intraventricular injection of the Hb scavenger haptoglobin (Hp) resulted in a corresponding distribution of immunolabeled Hp in the cerebellum and a partial reversal of the damaging effects observed following IVH. The results suggest that cell-free Hb is causally involved in cerebellar damage following IVH and that blocking cell-free Hb may have protective effects.
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Affiliation(s)
- Alex Adusei Agyemang
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
| | - Kristbjörg Sveinsdóttir
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
| | - Suvi Vallius
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
| | - Snjolaug Sveinsdóttir
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
| | - Matteo Bruschettini
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
| | - Olga Romantsik
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
| | - Ann Hellström
- Department of Ophthalmology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | | | - Magnus Gram
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden
- Infection Medicine, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - David Ley
- Pediatrics, Department of Clinical Sciences Lund, Skåne University Hospital, Lund University, BMC C14, SE-221 84, Lund, Sweden.
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Carbon Monoxide Improves Efficacy of Mesenchymal Stromal Cells During Sepsis by Production of Specialized Proresolving Lipid Mediators. Crit Care Med 2017; 44:e1236-e1245. [PMID: 27513357 PMCID: PMC5113254 DOI: 10.1097/ccm.0000000000001999] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Supplemental Digital Content is available in the text. Objectives: Mesenchymal stromal cells are being investigated as a cell-based therapy for a number of disease processes, with promising results in animal models of systemic inflammation and sepsis. Studies are ongoing to determine ways to further improve the therapeutic potential of mesenchymal stromal cells. A gas molecule that improves outcome in experimental sepsis is carbon monoxide. We hypothesized that preconditioning of mesenchymal stromal cells with carbon monoxide ex vivo would promote further therapeutic benefit when cells are administered in vivo after the onset of polymicrobial sepsis in mice. Design: Animal study and primary cell culture. Setting: Laboratory investigation. Subjects: BALB/c mice. Interventions: Polymicrobial sepsis was induced by cecal ligation and puncture. Mesenchymal stromal cells, mesenchymal stromal cells-conditioned with carbon monoxide, fibroblasts, or fibroblasts-conditioned with carbon monoxide were delivered by tail vein injections to septic mice. The mice were assessed for survival, bacterial clearance, and the inflammatory response during sepsis in each of the groups. Mesenchymal stromal cells were also assessed for their ability to promote bacterial phagocytosis by neutrophils, the production of specialized proresolving lipid mediators, and their importance for mesenchymal stromal cells function using gene silencing. Measurements and Main Results: Ex vivo preconditioning with carbon monoxide allowed mesenchymal stromal cells to be administered later after the onset of sepsis (6 hr), and yet maintain their therapeutic effect with increased survival. Carbon monoxide preconditioned mesenchymal stromal cells were also able to alleviate organ injury, improve bacterial clearance, and promote the resolution of inflammation. Mesenchymal stromal cells exposed to carbon monoxide, with docosahexaenoic acid substrate, produced specialized proresolving lipid mediators, particularly D-series resolvins, which promoted survival. Silencing of lipoxygenase pathways (5-lipoxygenase and 12/15-lipoxygenase), which are important enzymes for specialized proresolving lipid mediator biosynthesis, resulted in a loss of therapeutic benefit bestowed on mesenchymal stromal cells by carbon monoxide. Conclusions: Taken together, these data suggest that production of specialized proresolving lipid mediators contribute to improved mesenchymal stromal cell efficacy when exposed to carbon monoxide, resulting in an improved therapeutic response during sepsis.
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Hosoda J, Ishikawa T, Matsumoto K, Iguchi K, Matsushita H, Ogino Y, Taguchi Y, Sugano T, Ishigami T, Kimura K, Tamura K. Significance of change in serum bilirubin in predicting left ventricular reverse remodeling and outcomes in heart failure patients with cardiac resynchronization therapy. J Cardiol 2017; 70:416-419. [PMID: 28522137 DOI: 10.1016/j.jjcc.2017.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/16/2017] [Accepted: 04/10/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND Research on the correlation of serum bilirubin level with cardiac function as well as outcomes in heart failure patients with cardiac resynchronization therapy (CRT) has not yet been reported. The aim of this study was to analyze the relationship between change in serum bilirubin level and left ventricular reverse remodeling, and also to clarify the impact of bilirubin change on clinical outcomes in CRT patients. METHODS We evaluated 105 consecutive patients who underwent CRT. Patients who had no serum total-bilirubin data at both baseline and 3-9 months' follow-up or had died less than 3 months after CRT implantation were excluded. Accordingly, a total of 69 patients were included in the present analysis. The patients were divided into two groups: decreased bilirubin group (serum total-bilirubin level at follow-up≤that at baseline; n=48) and increased bilirubin group (serum total-bilirubin level at follow-up>that at baseline; n=21). RESULTS Mean follow-up period was 39.3 months. In the decreased bilirubin group, mean left ventricular end-systolic diameter decreased from 54.5mm to 50.2mm (p=0.001) and mean left ventricular ejection fraction increased significantly from 29.8% to 37.0% (p=0.001). In the increased bilirubin group, there was no significant change in echocardiographic parameters from baseline to follow-up. In Kaplan-Meyer analysis, cardiac mortality combined with heart failure hospitalization in the increased bilirubin group was significantly higher than that in the decreased bilirubin group (log-rank p=0.018). Multivariate Cox regression analysis revealed that increased bilirubin was an independent predictor of cardiac mortality combined with heart failure hospitalization (OR=2.66, p=0.023). CONCLUSIONS The change in serum bilirubin is useful for assessment of left ventricular reverse remodeling and prediction of outcomes in heart failure patients with CRT.
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Affiliation(s)
- Junya Hosoda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Toshiyuki Ishikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Katsumi Matsumoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kohei Iguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hirooki Matsushita
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yutaka Ogino
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yuka Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Teruyasu Sugano
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomoaki Ishigami
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kazuo Kimura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Li Z, Pierri AE, Huang PJ, Wu G, Iretskii AV, Ford PC. Dinuclear PhotoCORMs: Dioxygen-Assisted Carbon Monoxide Uncaging from Long-Wavelength-Absorbing Metal–Metal-Bonded Carbonyl Complexes. Inorg Chem 2017; 56:6094-6104. [DOI: 10.1021/acs.inorgchem.6b03138] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zhi Li
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Agustin E. Pierri
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Po-Ju Huang
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Guang Wu
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
| | - Alexei V. Iretskii
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
- Department of Chemistry and Environmental
Sciences, Lake Superior State University, Sault Sainte Marie, Michigan 49783, United States
| | - Peter C. Ford
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106-9510, United States
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Hull TD, Boddu R, Guo L, Tisher CC, Traylor AM, Patel B, Joseph R, Prabhu SD, Suliman HB, Piantadosi CA, Agarwal A, George JF. Heme oxygenase-1 regulates mitochondrial quality control in the heart. JCI Insight 2016; 1:e85817. [PMID: 27110594 DOI: 10.1172/jci.insight.85817] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The cardioprotective inducible enzyme heme oxygenase-1 (HO-1) degrades prooxidant heme into equimolar quantities of carbon monoxide, biliverdin, and iron. We hypothesized that HO-1 mediates cardiac protection, at least in part, by regulating mitochondrial quality control. We treated WT and HO-1 transgenic mice with the known mitochondrial toxin, doxorubicin (DOX). Relative to WT mice, mice globally overexpressing human HO-1 were protected from DOX-induced dilated cardiomyopathy, cardiac cytoarchitectural derangement, and infiltration of CD11b+ mononuclear phagocytes. Cardiac-specific overexpression of HO-1 ameliorated DOX-mediated dilation of the sarcoplasmic reticulum as well as mitochondrial disorganization in the form of mitochondrial fragmentation and increased numbers of damaged mitochondria in autophagic vacuoles. HO-1 overexpression promotes mitochondrial biogenesis by upregulating protein expression of NRF1, PGC1α, and TFAM, which was inhibited in WT animals treated with DOX. Concomitantly, HO-1 overexpression inhibited the upregulation of the mitochondrial fission mediator Fis1 and resulted in increased expression of the fusion mediators, Mfn1 and Mfn2. It also prevented dynamic changes in the levels of key mediators of the mitophagy pathway, PINK1 and parkin. Therefore, these findings suggest that HO-1 has a novel role in protecting the heart from oxidative injury by regulating mitochondrial quality control.
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Affiliation(s)
- Travis D Hull
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Ravindra Boddu
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Lingling Guo
- Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Cornelia C Tisher
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Amie M Traylor
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Bindiya Patel
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Comprehensive Cardiovascular Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Reny Joseph
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sumanth D Prabhu
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Comprehensive Cardiovascular Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Veterans Affairs, Birmingham, Alabama, USA
| | - Hagir B Suliman
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Claude A Piantadosi
- Department of Pulmonary, Allergy and Critical Care, Duke University School of Medicine, Durham, North Carolina, USA
| | - Anupam Agarwal
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Veterans Affairs, Birmingham, Alabama, USA
| | - James F George
- Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA; Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Comprehensive Cardiovascular Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Cai C, Guo Y, Teng L, Nong Y, Tan M, Book MJ, Zhu X, Wang XL, Du J, Wu WJ, Xie W, Hong KU, Li Q, Bolli R. Preconditioning Human Cardiac Stem Cells with an HO-1 Inducer Exerts Beneficial Effects After Cell Transplantation in the Infarcted Murine Heart. Stem Cells 2015; 33:3596-607. [PMID: 26299779 PMCID: PMC4766973 DOI: 10.1002/stem.2198] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 08/12/2015] [Indexed: 01/05/2023]
Abstract
The regenerative potential of c‐kit+ cardiac stem cells (CSCs) is severely limited by the poor survival of cells after transplantation in the infarcted heart. We have previously demonstrated that preconditioning human CSCs (hCSCs) with the heme oxygenase‐1 inducer, cobalt protoporphyrin (CoPP), has significant cytoprotective effects in vitro. Here, we examined whether preconditioning hCSCs with CoPP enhances CSC survival and improves cardiac function after transplantation in a model of myocardial infarction induced by a 45‐minute coronary occlusion and 35‐day reperfusion in immunodeficient mice. At 30 minutes of reperfusion, CoPP‐preconditioned hCSCsGFP+, hCSCsGFP+, or medium were injected into the border zone. Quantitative analysis with real‐time qPCR for the expression of the human‐specific gene HLA revealed that the number of survived hCSCs was significantly greater in the preconditioned‐hCSC group at 24 hours and 7 and 35 days compared with the hCSC group. Coimmunostaining of tissue sections for both green fluorescent protein (GFP) and human nuclear antigen further confirmed greater hCSC numbers at 35 days in the preconditioned‐hCSC group. At 35 days, compared with the hCSC group, the preconditioned‐hCSC group exhibited increased positive and negative left ventricular (LV) dP/dt, end‐systolic elastance, and anterior wall/apical strain rate (although ejection fraction was similar), reduced LV remodeling, and increased proliferation of transplanted cells and of cells apparently committed to cardiac lineage. In conclusion, CoPP‐preconditioning of hCSCs enhances their survival and/or proliferation, promotes greater proliferation of cells expressing cardiac markers, and results in greater improvement in LV remodeling and in indices of cardiac function after infarction. Stem Cells2015;33:3596–3607
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Affiliation(s)
- Chuanxi Cai
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Center for Cardiovascular Sciences & Department of Medicine, Albany Medical College, Albany, New York, USA
| | - Yiru Guo
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Lei Teng
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Center for Cardiovascular Sciences & Department of Medicine, Albany Medical College, Albany, New York, USA
| | - Yibing Nong
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Min Tan
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Michael J Book
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Xiaoping Zhu
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Xiao-Liang Wang
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Center for Cardiovascular Sciences & Department of Medicine, Albany Medical College, Albany, New York, USA
| | - Junjie Du
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Wen-Jian Wu
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Wei Xie
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Kyung U Hong
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Qianhong Li
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Roberto Bolli
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
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Wang L, Zhao B, Chen Y, Ma L, Chen EZ, Mao EQ. Biliary tract external drainage increases the expression levels of heme oxygenase-1 in rat livers. Eur J Med Res 2015. [PMID: 26199001 PMCID: PMC4511237 DOI: 10.1186/s40001-015-0152-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background Heme oxygenase-1 (HO-1) protects cells by anti-oxidation, maintaining normal microcirculation and anti-inflammatory under stress. This study investigated the effects of biliary tract external drainage (BTED) on the expression levels of HO-1 in rat livers. Methods Biliary tract external drainage was performed by inserting a cannula into the bile duct. Sixty Sprague–Dawley rats were randomized to the following groups: sham 1 h group; BTED 1 h group; bile duct ligation (BDL) 1 h group; sham 6 h group and BTED 6 h group. The expression levels of HO-1 mRNA were analyzed using real-time RT-PCR. The expression levels of HO-1 were analyzed using immunohistochemistry. Results The expression levels of HO-1 mRNA in the liver of the BTED group increased significantly compared with the sham group 1 and 6 h after surgery (p < 0.05).The expression levels of HO-1 in the BTED group increased significantly compared with the sham group 1 and 6 h after surgery. The expression levels of HO-1 mRNA in the liver in the BDL group decreased significantly compared with the sham group 1 h after surgery (p < 0.05).The expression levels of HO-1 in the BDL group decreased significantly compared with the sham group at this time. Conclusion Biliary tract external drainages increase the expression levels of HO-1 in the liver.
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Affiliation(s)
- Lu Wang
- Department of Emergency Intensive Care Unit, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
| | - Bing Zhao
- Department of Emergency Intensive Care Unit, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
| | - Ying Chen
- Department of Emergency Intensive Care Unit, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
| | - Li Ma
- Department of Emergency Intensive Care Unit, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
| | - Er-Zhen Chen
- Department of Emergency Intensive Care Unit, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
| | - En-Qiang Mao
- Department of Emergency Intensive Care Unit, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
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Chang PF, Lin YC, Liu K, Yeh SJ, Ni YH. Heme oxygenase-1 gene promoter polymorphism and the risk of pediatric nonalcoholic fatty liver disease. Int J Obes (Lond) 2015; 39:1236-40. [PMID: 25835554 DOI: 10.1038/ijo.2015.46] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 02/16/2015] [Accepted: 03/29/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Oxidative stress and the insulin-resistant state are thought to be key components in the pathogenesis of pediatric nonalcoholic fatty liver disease (NAFLD). Heme oxygenase (HO) is important in the defense against oxidative stress. This study aimed to assess the association of HO-1 gene promoter polymorphism and insulin resistance with NAFLD among obese children. METHODS A total of 101 obese children aged 6-17 years were recruited. Anthropometric, serum biochemical variables and biomarkers for glucose and insulin metabolism were measured. We screened the allelic frequencies of (GT)n repeats in the HO-1 gene promoter among these obese children. NAFLD was determined through liver ultrasonography. Because the distribution of numbers of (GT)n repeats was bimodal, we divided the alleles into two classes: class S included shorter (27) repeats, and class L included longer (⩾27) repeats. We assessed the effects of the length of (GT)n repeats in HO-1 gene promoter on pediatric NAFLD. RESULTS Of the 101 obese subjects, 27 (26.7%) had NAFLD. The alanine aminotransferase level was higher in patients carrying L alleles (L/L and L/S) than patients with S alleles (S/S) (46.2±49.3 IU|(-1) versus 30.2±20.1 IU|(-1); P=0.027). The significant risk factors for pediatric NAFLD were patients carrying L alleles (L/L and L/S) (odds ratio (OR)=18.84; 95% confidence interval (CI): 1.45-245.22; P=0.025), homeostasis model assessment of insulin resistance (OR=1.40; 95% CI: 1.07-1.83; P=0.014) and age (OR=1.24; 95% CI: 1.03-1.50; P=0.025). CONCLUSION In this hospital-based study, the obese children with longer GT repeats in the HO-1 gene promoter and insulin resistance were susceptible to NAFLD.
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Affiliation(s)
- P-F Chang
- 1] Department of Pediatrics, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan [2] Department of Healthcare Administration, Oriental Institute of Technology, Pan-Chiao, New Taipei, Taiwan
| | - Y-C Lin
- 1] Department of Pediatrics, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan [2] Department of Healthcare Administration, Oriental Institute of Technology, Pan-Chiao, New Taipei, Taiwan
| | - K Liu
- Department of Pediatrics, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan
| | - S-J Yeh
- 1] Department of Pediatrics, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan [2] Department of Healthcare Administration, Oriental Institute of Technology, Pan-Chiao, New Taipei, Taiwan
| | - Y-H Ni
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
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Tift MS, Ponganis PJ, Crocker DE. Elevated carboxyhemoglobin in a marine mammal, the northern elephant seal. ACTA ACUST UNITED AC 2015; 217:1752-7. [PMID: 24829326 DOI: 10.1242/jeb.100677] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Low concentrations of endogenous carbon monoxide (CO), generated primarily through degradation of heme from heme-proteins, have been shown to maintain physiological function of organs and to exert cytoprotective effects. However, high concentrations of carboxyhemoglobin (COHb), formed by CO binding to hemoglobin, potentially prevent adequate O2 delivery to tissues by lowering arterial O2 content. Elevated heme-protein concentrations, as found in marine mammals, are likely associated with greater heme degradation, more endogenous CO production and, consequently, elevated COHb concentrations. Therefore, we measured COHb in elephant seals, a species with large blood volumes and elevated hemoglobin and myoglobin concentrations. The levels of COHb were positively related to the total hemoglobin concentration. The maximum COHb value was 10.4% of total hemoglobin concentration. The mean (± s.e.m.) value in adult seals was 8.7 ± 0.3% (N=6), while juveniles and pups (with lower heme-protein contents) had lower mean COHb values of 7.6 ± 0.2% and 7.1 ± 0.3%, respectively (N=9 and N=9, respectively). Serial samples over several hours revealed little to no fluctuation in COHb values. This consistent elevation in COHb suggests that the magnitude and/or rate of heme-protein turnover is much higher than in terrestrial mammals. The maximum COHb values from this study decrease total body O2 stores by 7%, thereby reducing the calculated aerobic dive limit for this species. However, the constant presence of elevated CO in blood may also protect against potential ischemia-reperfusion injury associated with the extreme breath-holds of elephant seals. We suggest the elephant seal represents an ideal model for understanding the potential cytoprotective effects, mechanisms of action and evolutionary adaptation associated with chronically elevated concentrations of endogenously produced CO.
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Affiliation(s)
- Michael S Tift
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0204, USA Department of Biology, Sonoma State University, Rohnert Park, CA 94928, USA
| | - Paul J Ponganis
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0204, USA
| | - Daniel E Crocker
- Department of Biology, Sonoma State University, Rohnert Park, CA 94928, USA
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Horsfall LJ, Hardy R, Wong A, Kuh D, Swallow DM. Genetic variation underlying common hereditary hyperbilirubinaemia (Gilbert's syndrome) and respiratory health in the 1946 British birth cohort. J Hepatol 2014; 61:1344-51. [PMID: 25086287 DOI: 10.1016/j.jhep.2014.07.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 07/17/2014] [Accepted: 07/21/2014] [Indexed: 01/01/2023]
Abstract
BACKGROUND & AIMS Bilirubin has potent antioxidant properties in vitro and raised serum levels have been associated with lower rates of respiratory disease. The enzyme uridine diphosphate glucuronosyltransferase polypeptide 1A1 (UGT1A1) is solely responsible for clearing bilirubin from the blood and homozygosity for seven thymine-adenine (TA) repeats in the TATA box regulatory element of the UGT1A1 gene underlies a mild hereditary unconjugated hyperbilirubinaemia (Gilbert's syndrome). Our aim was to investigate whether this genetic variation is associated with differences in respiratory health. METHODS The relationship between the promoter genotype underlying Gilbert's syndrome (UGT1A1 rs8175347 [TA]7/7) and respiratory outcomes assessed at ages 43, 53, and 60-64 were examined in 2190 members of the 1946 British birth cohort. RESULTS The (TA)7/7 genotype, present in 9% of the cohort, was associated with higher forced expiratory volume (FEV1) and forced vital capacity (FVC). The relationship was strongest for heavy smokers (⩾20 cigarettes per day) at age 53 with mean FEV1 409 ml higher (191 to 627; p<0.001) and mean FVC 530 ml higher (95% CI 262-798; p<0.001) for UGT1A1 (TA)7/7 Gilbert's syndrome participants than for all others, indicating a protection from the pulmonary consequences of heavy smoking. The odds of respiratory disease (chronic obstructive pulmonary disease, self-reported asthma, or prescription of respiratory drugs) were half in those with Gilbert's syndrome genotype (odds ratio 0.49 [95% CI 0.39-0.74]; p<0.001) compared to those without this genotype. CONCLUSIONS Genetically raised unconjugated serum bilirubin is associated with higher adult respiratory function and protection from respiratory disease.
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Affiliation(s)
- Laura J Horsfall
- Research Department of Primary Care and Population Health, Institute of Epidemiology & Health, University College London, UK; Research Department of Genetic, Environment and Evolution, University College London, UK.
| | - Rebecca Hardy
- MRC University Unit for Lifelong Health and Ageing at University College London, UK
| | - Andrew Wong
- MRC University Unit for Lifelong Health and Ageing at University College London, UK
| | - Diana Kuh
- MRC University Unit for Lifelong Health and Ageing at University College London, UK
| | - Dallas M Swallow
- Research Department of Genetic, Environment and Evolution, University College London, UK
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Park ES, Kang DH, Yang MK, Kang JC, Jang YC, Park JS, Kim SK, Shin HS. Cordycepin, 3'-deoxyadenosine, prevents rat hearts from ischemia/reperfusion injury via activation of Akt/GSK-3β/p70S6K signaling pathway and HO-1 expression. Cardiovasc Toxicol 2014; 14:1-9. [PMID: 24178833 DOI: 10.1007/s12012-013-9232-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cordycepin (3'-deoxyadenosine) isolated from Cordyceps militaris, a species of the fungal genus Cordyceps, has been shown to exhibit many pharmacological functions, such as anticancer, anti-inflammatory, and antioxidant activities. In this study, we investigated the preventive role of cordycepin in ischemic/reperfusion (I/R) injury of isolated rat hearts and anesthetized rats. After Sprague-Dawley rats received cordycepin (3, 10, and 30 mg/kg) or control (0.5 % carboxyl methylcellulose) orally once a day for a week, hearts were isolated and mounted on Langendorff heart perfusion system. Isolated hearts were perfused with Krebs-Henseleit buffer for 15-min pre-ischemic stabilization period and subjected to 30-min global ischemia and 30-min reperfusion. Cordycepin administration (10 mg/kg, p.o.) significantly increased left ventricular developed pressure during the reperfusion period compared to that in the control group, but without any effect on coronary flow. Cordycepin (10 mg/kg, p.o.) significantly increased the phosphorylation of Akt/GSK-3β/p70S6K pathways, which are known to modulate multiple survival pathways. In addition, cordycepin decreased Bax and cleaved caspase-3 expression while increasing Bcl-2 expression, Bcl-2/Bax ratio, and heme oxygenase (HO-1) expression in isolated rat hearts. In anesthetized rats subjected to 30 min occlusion of left anterior descending coronary artery/2.5-h reperfusion, cordycepin (1, 3, and 10 mg/kg, i.v.) administered 15 min before the onset of ischemia dose-dependently decreased the infarct size in left ventricle. In conclusion, cordycepin could be an attractive therapeutic candidate with oral activity against I/R-associated heart diseases such as myocardial infarction.
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Affiliation(s)
- Eun-Seok Park
- Department of Biomedical Chemistry, College of Biomedical and Health Science, Konkuk University, 322 Danwol-Dong, Chungju, Chungbuk, 380-701, Republic of Korea
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Wen CP, Zhang F, Liang D, Wen C, Gu J, Skinner H, Chow WH, Ye Y, Pu X, Hildebrandt MAT, Huang M, Chen CH, Hsiung CA, Tsai MK, Tsao CK, Lippman SM, Wu X. The ability of bilirubin in identifying smokers with higher risk of lung cancer: a large cohort study in conjunction with global metabolomic profiling. Clin Cancer Res 2014; 21:193-200. [PMID: 25336700 DOI: 10.1158/1078-0432.ccr-14-0748] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE We aimed to identify serum metabolites as potential valuable biomarkers for lung cancer and to improve risk stratification in smokers. EXPERIMENTAL DESIGN We performed global metabolomic profiling followed by targeted validation of individual metabolites in a case-control design of 386 lung cancer cases and 193 matched controls. We then validated bilirubin, which consistently showed significant differential levels in cases and controls, as a risk marker for lung cancer incidence and mortality in a large prospective cohort composed of 425,660 participants. RESULTS Through global metabolomic profiling and following targeted validation, bilirubin levels consistently showed a statistically significant difference among healthy controls and lung cancer cases. In the prospective cohort, the inverse association was only seen in male smokers, regardless of smoking pack-years and intensity. Compared with male smokers in the highest bilirubin group (>1 mg/dL), those in the lowest bilirubin group (<0.75 mg/dL) had 55% and 66% increase in risks of lung cancer incidence and mortality, respectively. For every 0.1 mg/dL decrease of bilirubin, the risks for lung cancer incidence and mortality increased by 5% and 6% in male smokers, respectively (both P < 0.001). There was a significant interaction between low serum bilirubin level and smoking on lung cancer risk (Pinteraction = 0.001). CONCLUSION Low levels of serum bilirubin are associated with higher risks of lung cancer incidence and mortality in male smokers and can be used to identify higher risk smokers for lung cancer.
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Affiliation(s)
- Chi-Pang Wen
- Institute of Population Health Science, National Health Research Institutes, Zhunan, Taiwan. China Medical University Hospital, Taichung, Taiwan
| | - Fanmao Zhang
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dong Liang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, Texas
| | - Christopher Wen
- Department of Radiological Sciences, University of California at Irvine, Irvine, California
| | - Jian Gu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Heath Skinner
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Wong-Ho Chow
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yuanqing Ye
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xia Pu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Maosheng Huang
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Chien-Hua Chen
- Digestive Disease Center, Show-Chwan Memorial Hospital, Changhua, Taiwan
| | - Chao Agnes Hsiung
- Institute of Population Health Science, National Health Research Institutes, Zhunan, Taiwan
| | - Min Kuang Tsai
- Institute of Population Health Science, National Health Research Institutes, Zhunan, Taiwan
| | | | | | - Xifeng Wu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Vakhshiteh F, Allaudin ZN, Lila MABM, Abbasiliasi S, Ajdari Z. Nucleotide sequencing, cloning, and expression of Capra hircus Heme Oxygenase-1 in caprine islets to promote insulin secretion in vitro. Mol Biotechnol 2014; 57:75-83. [PMID: 25218408 DOI: 10.1007/s12033-014-9803-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Transplantation of islets of Langerhans that have been isolated from whole pancreas is an attractive alternative for the reversal of Type 1 diabetes. However, in vitro culture of isolated pancreatic islets has been reported to cause a decrease in glucose response over time. Hence, the improvement in islet culture conditions is an important goal in islet transplantation. Heme Oxygenase-1 (HO-1) is a stress protein that has been described as an inducible protein with the capacity of preventing apoptosis and cytoprotection via radical scavenging. Therefore, this study was aimed to assess the influence of endogenous HO-1 gene transfer on insulin secretion of caprine islets. The full-length cDNA sequence of Capra hircus HO-1 was determined using specific designed primers and rapid amplification of cDNA ends of pancreatic tissue. The HO-1 cDNA was then cloned into the prokaryotic expression vectors and transfected into caprine islets using lipid carriers. Efficiency of lipid carriers to transfect caprine islets was determined by flow cytometry. Insulin secretion assay was carried out by ovine insulin ELISA. The finding demonstrated that endogenous HO-1 gene transfer could improve caprine islet function in in vitro culture. Consequently, strategies using HO-1 gene transfer to islets might lead to better outcome in islet transplantation.
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Affiliation(s)
- Faezeh Vakhshiteh
- Institute of Bioscience, Universiti Putra Malaysia, 43300, Serdang, Selangor, Malaysia
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Lim JE, Kimm H, Jee SH. Combined effects of smoking and bilirubin levels on the risk of lung cancer in Korea: the severance cohort study. PLoS One 2014; 9:e103972. [PMID: 25100210 PMCID: PMC4123988 DOI: 10.1371/journal.pone.0103972] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 07/03/2014] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Smoking is a major risk factor for lung cancer. Bilirubin, an antioxidant, is inversely associated with the risk of diseases related to oxidative stress. This study was conducted to determine the influence of smoking and bilirubin levels on the risk of lung cancer in the Severance cohort study. METHODS This study included 68,676 Korean who received a health examination at Severance Health Promotion Center from 1994 to 2004. Serum bilirubin measurements within normal range were divided into tertiles whereas smoking states were divided as never-smokers, former smokers and current smokers. A diagnosis of lung cancer was coded as occurring based on the report from the National Cancer Registry. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) were calculated using Cox proportional hazards model. RESULTS At the end of the study period, 240 patients (men: 181, women: 59) developed lung cancer. Compared to those with bilirubin levels ≥ 1.0 mg/dL, HRs (95% CI) for lung cancer were 2.8 (1.8-4.2) for subjects having bilirubin levels from 0.2 to 0.7 mg/dL in men. When we stratified our analysis by smoking status, bilirubin consistently showed a protective effect on the risk of lung cancer on both never- and current smokers. Current smokers having bilirubin levels from 0.2 to 0.7 mg/dL had a risk of lung cancer by 6.0-fold higher than never-smokers with bilirubin levels ≥ 1.0 mg/dL in men. CONCLUSION In this large prospective study, higher baseline bilirubin level in the normal range was associated with low risk of lung cancer. Smoking and low bilirubin levels were cumulatively associated with a higher risk of lung cancer.
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Affiliation(s)
- Jung-eun Lim
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate school of Public Health, Yonsei University, Seoul, Republic of Korea
- Department of public health, Graduate School, Yonsei University, Seoul, Republic of Korea
| | - Heejin Kimm
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate school of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Sun Ha Jee
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate school of Public Health, Yonsei University, Seoul, Republic of Korea
- Department of public health, Graduate School, Yonsei University, Seoul, Republic of Korea
- * E-mail:
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Li Y, Wang Q, Xu Q, Cai S, Zhou J, Ren B, Sun T, Liu X, Yu H. Valsartan decreases neointimal hyperplasia in balloon-injured rat aortic arteries by upregulating HO-1 and inhibiting angiotensin II type 1 receptor. Life Sci 2014; 110:70-6. [PMID: 25014676 DOI: 10.1016/j.lfs.2014.06.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/21/2014] [Accepted: 06/26/2014] [Indexed: 10/25/2022]
Abstract
AIMS Upregulation of heme oxygenase (HO)-1 plays an important role in vascular protection. Valsartan attenuates neointimal hyperplasia in animal studies. The objective of this study was to examine the role of HO-1 and angiotensin II type 1 (AT1) receptor in the action of valsartan on neointimal hyperplasia in balloon-injured rat aortic arteries. MAIN METHODS Thirty-six male Wistar rats were randomly divided into the following three groups with twelve rats in each group: control group, surgery (model) group, and valsartan group. Aortic balloon injury was performed to elicit endothelial denudation with a 2F balloon catheter. On days 14 and 28 after injury, blood was harvested to measure bilirubin levels. Aortic arteries were harvested for morphometry analysis, to determine angiotensin II (Ang II) level, and to analyze mRNA or protein expression. KEY FINDINGS Compared with the control group, proliferation and intimal thickening of vascular smooth muscle cells (VSMCs) were obvious in the surgery group rats on days 14 and 28 after injury. Valsartan significantly reduced the proliferation and intimal thickening. Additionally, pretreatment with valsartan significantly reduced Ang II levels, AT1 receptor, and p38 mitogen-activated protein kinase (MAPK) expression. Valsartan increased HO-1 protein and mRNA expression, as well as increased serum bilirubin levels compared with the surgery group. SIGNIFICANCE Valsartan treatment decreased neointimal hyperplasia in balloon-injured rats. The mechanism of action might be linked to the upregulation of HO-1, downregulation of AT1 receptor and inhibition of p38MAPK signal pathway.
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Affiliation(s)
- Yonghong Li
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China
| | - Qixin Wang
- Hypertension Laboratory, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Qingke Xu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China
| | - Shanglang Cai
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China
| | - Jingwei Zhou
- Department of Emergency, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China
| | - Beibei Ren
- Department of Emergency, Qingdao's Municipal Hospital, Qingdao 266003, China
| | - Tingru Sun
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China
| | - Xu Liu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China
| | - Haichu Yu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, China.
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Du J, Zhang J, Zou D, Ye L, Chen GG, Yang C. Effects of interleukin-10 gene deficiency on hepatic biochemical metabolism in mice. Clin Exp Med 2014; 15:321-5. [PMID: 24925637 DOI: 10.1007/s10238-014-0291-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 04/22/2014] [Indexed: 10/25/2022]
Abstract
The aim of this study was to investigate the effect of interleukin-10 (IL-10) gene deficiency on mouse liver function. The experimental mice were divided into wild-type and IL-10 knockout groups. Serological biomarkers for liver functions were detected by the automatic biochemical analyzer AU5400. The pathological changes were assessed by the light microscope. The levels of inducible nitric oxide synthase (iNOS) and interleukin-1β (IL-1β) in liver tissues were determined by quantitative real-time PCR and enzyme-linked immunosorbent assay. Compared with the wild type, the serum levels of albumin (ALB), total protein, total bilirubin and direct bilirubin in IL-10-deficient mice were significantly decreased (P < 0.05). No obvious pathological changes including liver necrosis and inflammatory cell infiltration were found. The expression of iNOS and IL-1β genes, the serum levels of iNOS and IL-1β were significantly higher in IL-10-deficient mice than in wild-type mice (P < 0.05). The absence of IL-10 gene can significantly decrease serum ALB and bilirubin. The effect may be related to the upregulation of iNOS and IL-1β.
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Affiliation(s)
- Jing Du
- Department of Clinical Laboratory Medicine, Peking University Shenzhen Hospital, Shenzhen, 518036, China
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Yeh CH, Yang JJ, Yang ML, Li YC, Kuan YH. Rutin decreases lipopolysaccharide-induced acute lung injury via inhibition of oxidative stress and the MAPK-NF-κB pathway. Free Radic Biol Med 2014; 69:249-57. [PMID: 24486341 DOI: 10.1016/j.freeradbiomed.2014.01.028] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 01/17/2014] [Accepted: 01/22/2014] [Indexed: 12/17/2022]
Abstract
Acute lung injury (ALI) is a serious disease with unacceptably high mortality and morbidity rates. Up to now, no effective therapeutic strategy for ALI has been established. Rutin, quercetin-3-rhamnosyl glucoside, expresses a wide range of biological activities and pharmacological effects, such as anti-inflammatory, antihypertensive, anticarcinogenic, vasoprotective, and cardioprotective activities. Pretreatment with rutin inhibited not only histopathological changes in lung tissues but also infiltration of polymorphonuclear granulocytes into bronchoalveolar lavage fluid in lipopolysaccharide (LPS)-induced ALI. In addition, LPS-induced inflammatory responses, including increased secretion of proinflammatory cytokines and lipid peroxidation, were inhibited by rutin in a concentration-dependent manner. Furthermore, rutin suppressed phosphorylation of NF-κB and MAPK and degradation of IκB, an NF-κB inhibitor. Decreased activities of antioxidative enzymes such as superoxide dismutase, catalase, glutathione peroxidase, and heme oxygenase-1 caused by LPS were reversed by rutin. At the same time, we found that ALI amelioration by chelation of extracellular metal ions with rutin is more efficacious than with deferoxamine. These results indicate that the protective mechanism of rutin is through inhibition of MAPK-NF-κB activation and upregulation of antioxidative enzymes.
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Affiliation(s)
- Chung-Hsin Yeh
- Department of Neurology, Show Chwan Memorial Hospital, Changhua, Taiwan; Department of Nursing, College of Medicine & Nursing, Hung Kuang University, Taichung, Taiwan
| | - Jiann-Jou Yang
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Ling Yang
- Department of Anatomy, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yi-Ching Li
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Hsiang Kuan
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Department of Pharmacy, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
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