1
|
Zhao Y, Valis M, Wang X, Nepovimova E, Wu Q, Kuca K. HIF-1α is a "brake" in JNK-mediated activation of amyloid protein precursor and hyperphosphorylation of tau induced by T-2 toxin in BV2 cells. Mycotoxin Res 2024; 40:223-234. [PMID: 38319535 DOI: 10.1007/s12550-024-00525-6] [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: 09/20/2023] [Revised: 01/03/2024] [Accepted: 01/30/2024] [Indexed: 02/07/2024]
Abstract
Mycotoxins have been shown to activate multiple mechanisms that may potentially lead to the progression of Alzheimer's disease (AD). Overexpression/aberrant cleavage of amyloid precursor protein (APP) and hyperphosphorylation of tau (P-tau) is hallmark pathologies of AD. Recent advances suggest that the neurotoxic effects of mycotoxins involve c-Jun N-terminal kinase (JNK) and hypoxia-inducible factor-1α (HIF-1α) signaling, which are closely linked to the pathogenesis of AD. Due to the high toxicity and broad contamination of T-2 toxin, we assessed how T-2 toxin exposure alters APP and P-tau formation in BV2 cells and determined the underlying roles of HIF-1α and JNK signaling. The findings revealed that T-2 toxin stimulated the expression of HIF-1α and hypoxic stress factors in addition to increasing the expression of APP and P-tau. Additionally, HIF-1α acted as a "brake" on the induction of APP and P-tau expression by negatively regulating these proteins. Notably, T-2 toxin activated JNK signaling, which broke this "brake" to promote the formation of APP and P-tau. Furthermore, the cytoskeleton was an essential target for T-2 toxin to exert cytotoxicity, and JNK/HIF-1α participated in this damage. Collectively, when the T-2 toxin induces the production of APP and P-tau, JNK might interfere with HIF-1α's protective function. This study will provide clues for further research on the neurotoxicity of mycotoxins.
Collapse
Affiliation(s)
- Yingying Zhao
- College of Life Science, Yangtze University, Jingzhou, 434025, China
| | - Martin Valis
- Department of Neurology, Charles University in Prague, Faculty of Medicine in Hradec Kralove and University Hospital, Hradec Králové, Czech Republic
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University (HZAU), Wuhan, Hubei, 430070, China
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou, 434025, China.
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic.
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, 50003, Hradec Králové, Czech Republic.
- Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, 18071, Granada, Spain.
| |
Collapse
|
2
|
Li J, Liu Y, Zheng R, Qu C, Li J. Molecular mechanisms of TACE refractoriness: Directions for improvement of the TACE procedure. Life Sci 2024; 342:122540. [PMID: 38428568 DOI: 10.1016/j.lfs.2024.122540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/24/2024] [Accepted: 02/25/2024] [Indexed: 03/03/2024]
Abstract
Transcatheter arterial chemoembolisation (TACE) is the standard of care for intermediate-stage hepatocellular carcinoma and selected patients with advanced hepatocellular carcinoma. However, TACE does not achieve a satisfactory objective response rate, and the concept of TACE refractoriness has been proposed to identify patients who do not fully benefit from TACE. Moreover, repeated TACE is necessary to obtain an optimal and sustained anti-tumour response, which may damage the patient's liver function. Therefore, studies have recently been performed to improve the effectiveness of TACE. In this review, we summarise the detailed molecular mechanisms associated with TACE responsiveness and relapse after this treatment to provide more effective targets for adjuvant therapy while helping to improve TACE regimens.
Collapse
Affiliation(s)
- Jiahao Li
- Department of Interventional Therapy, The First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China; The Public Laboratory Platform of the First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Yingnan Liu
- Department of Radiology, The First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Ruipeng Zheng
- Department of Interventional Therapy, The First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Chao Qu
- Department of Interventional Therapy, The First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China; The Public Laboratory Platform of the First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Jiarui Li
- Department of Interventional Therapy, The First Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China.
| |
Collapse
|
3
|
Chi W, Fu J, Martyniuk CJ, Wang J, Zhou L. Post-Subfunctionalization Functions of HIF-1αA and HIF-1αB in Cyprinid Fish: Fine-Tuning Mitophagy and Apoptosis Regulation Under Hypoxic Stress. J Mol Evol 2023; 91:780-792. [PMID: 37924420 DOI: 10.1007/s00239-023-10138-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023]
Abstract
Hypoxia-inducible factor 1 (HIF-1) is a crucial transcriptional factor that can restore oxygen balance in the body by regulating multiple vital activities. Two HIF-1α copies were retained in cyprinid fish after experiencing a teleost-specific genome duplication. How the "divergent collaboration" of HIF-1αA and HIF-1αB proceeds in regulating mitophagy and apoptosis under hypoxic stress in cells of cyprinid fish remains unclear. In this study, zebrafish HIF-1αA/B expression plasmids were constructed and transfected into the epithelioma papulosum cyprini cells and were subjected to hypoxic stress. HIF-1αA induced apoptosis through promoting ROS generation and mitochondrial depolarization when cells were subjected to oxygen deficiency. Conversely, HIF-1αB was primarily responsible for mitophagy induction, prompting ATP production to mitigate apoptosis. HIF-1αA did not induce mitophagy in the mitochondria and lysosomes co-localization assay but it was involved in the regulation of different mitophagy pathways. Over-expression of HIF-1αA increased the expression of bnip3, fundc1, Beclin1, and foxo3, suggesting it has a dual role in mitochondrial autophagy and cell death. Each duplicated copy also experienced functional divergence and target shifting in the regulation of complexes in the mitochondrial electron transport chain (ETC). Our findings shed light on the post-subfunctionalization function of HIF-1αA and HIF-1αB in zebrafish to fine-tune regulation of mitophagy and apoptosis following hypoxia exposure.
Collapse
Affiliation(s)
- Wei Chi
- School of Life Sciences, Huizhou University, Huizhou, 510607, China.
| | | | - Chris J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Jiangyong Wang
- School of Life Sciences, Huizhou University, Huizhou, 510607, China
| | - Libin Zhou
- School of Life Sciences, Huizhou University, Huizhou, 510607, China
| |
Collapse
|
4
|
Zhang R, Tu L, Yang Y, Sun J, Liang T, Li Y, Chen R, Chen B, Luan T. Altered generation pattern of reactive oxygen species triggering DNA and plasma membrane damages to human liver cells treated with arsenite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165821. [PMID: 37506919 DOI: 10.1016/j.scitotenv.2023.165821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/11/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Abstract
Human exposure to arsenic via drinking water is one of globally concerned health issues. Oxidative stress is regarded as the denominator of arsenic-inducing toxicities. Therefore, to identify intracellular sources of reactive oxygen species (ROS) could be essential for addressing the detrimental effects of arsenite (iAsIII). In this study, the contributions of different pathways to ROS formation in iAsIII-treated human normal liver (L-02) cells were quantitatively assessed, and then concomitant oxidative impairs were evaluated using metabolomics and lipidomics approaches. Following iAsIII treatment, NADPH oxidase (NOX) activity and expression levels of p47phox and p67phox were upregulated, and NOX-derived ROS contributed to almost 60.0 % of the total ROS. Moreover, iAsIII also induced mitochondrial superoxide anion and impaired mitochondrial respiratory function of L-02 cells with a decreasing ATP production. The inhibition of NOX activity significantly rescued mitochondrial membrane potential in iAsIII-treated L-02 cells. Purine and glycerophospholipids metabolisms in L-02 cells were disrupted by iAsIII, which might be used to represent DNA and plasma membrane damages, respectively. Our study supported that NOX could be the primary pathway of ROS overproduction and revealed the potential mechanisms of iAsIII toxicity related to oxidative stress.
Collapse
Affiliation(s)
- Ruijia Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Lanyin Tu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuanzhu Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Jin Sun
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Tong Liang
- Intensive Care Unit, Guangzhou Eighth People's Hospital, Guangzhou 510440, China
| | - Yizheng Li
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Ruohong Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Baowei Chen
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China.
| | - Tiangang Luan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| |
Collapse
|
5
|
Yang Q, Yan R, Zhang J, Zhang T, Kong Q, Zhang X, Xia H, Ye A, Qiao X, Kato K, Chen C, An Y. Reductive stress induced by NRF2/G6PD through glucose metabolic reprogramming promotes malignant transformation in Arsenite-exposed human keratinocytes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165207. [PMID: 37391132 DOI: 10.1016/j.scitotenv.2023.165207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Our previous research found that the nuclear factor-E2-related factor 2 (NRF2) protein was sustained activated in malignant transformation of human keratinocyte (HaCaT cells) caused by NaAsO2, but the role of NRF2 in it remains unknown. In this study, malignant transformation of HaCaT cells and labeled HaCaT cells used to detect mitochondrial glutathione levels (Mito-Grx1-roGFP2 HaCaT cells) were induced by 1.0 μM NaAsO2. Redox levels were measured at passages 0, early stage (passages 1, 7, 14), later stage (passages 21, 28 and 35) of arsenite-treated HaCaT cells. Oxidative stress levels increased at early stage. The NRF2 pathway was sustained activated. Cells and mitochondrial reductive stress levels (GSH/GSSG and NADPH/NADP+) increased. The mitochondrial GSH/GSSG levels of Mito-Grx1-roGFP2 HaCaT cells also increased. The indicators of glucose metabolism glucose-6-phosphate, lactate and the glucose-6-phosphate dehydrogenase (G6PD) levels increased, however Acetyl-CoA level decreased. Expression levels of glucose metabolic enzymes increased. After transfection with NRF2 siRNA, the indicators of glucose metabolism were reversed. After transfection with NRF2 or G6PD siRNA, cells and mitochondrial reductive stress levels decreased and the malignant phenotype was reversed. In conclusion, oxidative stress occurred in the early stage and the NRF2 was sustained high expression. In the later stage, increased NRF2/G6PD through glucose metabolic reprogramming induced reductive stress, thereby leading to malignant transformation.
Collapse
Affiliation(s)
- Qianlei Yang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Rui Yan
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Ting Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Qi Kong
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Xiaoyun Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Haixuan Xia
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China
| | - Aojun Ye
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China
| | - Xinhua Qiao
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China
| | - Koichi Kato
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba 274-8555, Japan
| | - Chang Chen
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China.
| | - Yan An
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College of Soochow University, Suzhou 215123, Jiangsu, People's Republic of China.
| |
Collapse
|
6
|
Riegger J, Schoppa A, Ruths L, Haffner-Luntzer M, Ignatius A. Oxidative stress as a key modulator of cell fate decision in osteoarthritis and osteoporosis: a narrative review. Cell Mol Biol Lett 2023; 28:76. [PMID: 37777764 PMCID: PMC10541721 DOI: 10.1186/s11658-023-00489-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/11/2023] [Indexed: 10/02/2023] Open
Abstract
During aging and after traumatic injuries, cartilage and bone cells are exposed to various pathophysiologic mediators, including reactive oxygen species (ROS), damage-associated molecular patterns, and proinflammatory cytokines. This detrimental environment triggers cellular stress and subsequent dysfunction, which not only contributes to the development of associated diseases, that is, osteoporosis and osteoarthritis, but also impairs regenerative processes. To counter ROS-mediated stress and reduce the overall tissue damage, cells possess diverse defense mechanisms. However, cellular antioxidative capacities are limited and thus ROS accumulation can lead to aberrant cell fate decisions, which have adverse effects on cartilage and bone homeostasis. In this narrative review, we address oxidative stress as a major driver of pathophysiologic processes in cartilage and bone, including senescence, misdirected differentiation, cell death, mitochondrial dysfunction, and impaired mitophagy by illustrating the consequences on tissue homeostasis and regeneration. Moreover, we elaborate cellular defense mechanisms, with a particular focus on oxidative stress response and mitophagy, and briefly discuss respective therapeutic strategies to improve cell and tissue protection.
Collapse
Affiliation(s)
- Jana Riegger
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University Medical Center, 89081, Ulm, Germany.
| | - Astrid Schoppa
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Leonie Ruths
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Melanie Haffner-Luntzer
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| |
Collapse
|
7
|
Aschner M, Skalny AV, Lu R, Santamaria A, Zhou JC, Ke T, Karganov MY, Tsatsakis A, Golokhvast KS, Bowman AB, Tinkov AA. The role of hypoxia-inducible factor 1 alpha (HIF-1α) modulation in heavy metal toxicity. Arch Toxicol 2023; 97:1299-1318. [PMID: 36933023 DOI: 10.1007/s00204-023-03483-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 03/02/2023] [Indexed: 03/19/2023]
Abstract
Hypoxia-inducible factor 1 (HIF-1) is an oxygen-sensing transcriptional regulator orchestrating a complex of adaptive cellular responses to hypoxia. Several studies have demonstrated that toxic metal exposure may also modulate HIF-1α signal transduction pathway, although the existing data are scarce. Therefore, the present review aims to summarize the existing data on the effects of toxic metals on HIF-1 signaling and the potential underlying mechanisms with a special focus on prooxidant effect of the metals. The particular effect of metals was shown to be dependent on cell type, varying from down- to up-regulation of HIF-1 pathway. Inhibition of HIF-1 signaling may contribute to impaired hypoxic tolerance and adaptation, thus promoting hypoxic damage in the cells. In contrast, its metal-induced activation may result in increased tolerance to hypoxia through increased angiogenesis, thus promoting tumor growth and contributing to carcinogenic effect of heavy metals. Up-regulation of HIF-1 signaling is mainly observed upon Cr, As, and Ni exposure, whereas Cd and Hg may both stimulate and inhibit HIF-1 pathway. The mechanisms underlying the influence of toxic metal exposure on HIF-1 signaling involve modulation of prolyl hydroxylases (PHD2) activity, as well as interference with other tightly related pathways including Nrf2, PI3K/Akt, NF-κB, and MAPK signaling. These effects are at least partially mediated by metal-induced ROS generation. Hypothetically, maintenance of adequate HIF-1 signaling upon toxic metal exposure through direct (PHD2 modulation) or indirect (antioxidant) mechanisms may provide an additional strategy for prevention of adverse effects of metal toxicity.
Collapse
Affiliation(s)
- Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Anatoly V Skalny
- IM Sechenov First Moscow State Medical University (Sechenov University), 119435, Moscow, Russia
| | - Rongzhu Lu
- Department of Preventive Medicine and Public Health Laboratory Science, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Abel Santamaria
- Laboratorio de Aminoácidos Excitadores/Laboratorio de Neurofarmacología Molecular y Nanotecnología, Instituto Nacional de Neurología y Neurocirugía, 14269, Mexico City, Mexico
| | - Ji-Chang Zhou
- School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, 518100, China
| | - Tao Ke
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | | | - Aristides Tsatsakis
- IM Sechenov First Moscow State Medical University (Sechenov University), 119435, Moscow, Russia.,Laboratory of Toxicology, Medical School, University of Crete, Voutes, 700 13, Heraklion, Crete, Greece
| | - Kirill S Golokhvast
- Siberian Federal Scientific Centre of Agrobiotechnologies of the Russian Academy of Sciences, Krasnoobsk, Russia
| | - Aaron B Bowman
- School of Health Sciences, Purdue University, West Lafayette, USA
| | - Alexey A Tinkov
- IM Sechenov First Moscow State Medical University (Sechenov University), 119435, Moscow, Russia. .,Laboratory of Ecobiomonitoring and Quality Control, Yaroslavl State University, 150003, Yaroslavl, Russia.
| |
Collapse
|
8
|
NF-κB1 p50 stabilizes HIF-1α protein through suppression of ATG7-dependent autophagy. Cell Death Dis 2022; 13:1076. [PMID: 36575197 PMCID: PMC9794792 DOI: 10.1038/s41419-022-05521-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/28/2022]
Abstract
The function and underlying mechanisms of p50 in the regulation of protein expression is much less studied because of its lacking of transactivation domain. In this study, we discovered a novel function of p50 in its stabilization of hypoxia-inducible factor 1α (HIF-1α) protein under the condition of cells exposed to arsenic exposure. In p50-deficient (p50-/-) cells, the HIF-1α protein expression was impaired upon arsenic exposure, and such defect could be rescued by reconstitutional expression of p50. Mechanistic study revealed that the inhibition of autophagy-related gene 7 (ATG7)-dependent autophagy was in charge of p50-mediated HIF-1α protein stabilization following arsenic exposure. Moreover, p50 deletion promoted nucleolin (NCL) protein translation to enhance ATG7 mRNA transcription via directly binding transcription factor Sp1 mRNA and increase its stability. We further discovered that p50-mediated miR-494 upregulation gave rise to the inhibition of p50-mediated NCL translation by interacting with its 3'-UTR. These novel findings provide a great insight into the understanding of biomedical significance of p50 protein in arsenite-associated disease development and therapy.
Collapse
|
9
|
Deng H, Tu Y, Wang H, Wang Z, Li Y, Chai L, Zhang W, Lin Z. Environmental behavior, human health effect, and pollution control of heavy metal(loid)s toward full life cycle processes. ECO-ENVIRONMENT & HEALTH (ONLINE) 2022; 1:229-243. [PMID: 38077254 PMCID: PMC10702911 DOI: 10.1016/j.eehl.2022.11.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 02/23/2024]
Abstract
Heavy metal(loid)s (HMs) have caused serious environmental pollution and health risks. Although the past few years have witnessed the achievements of studies on environmental behavior of HMs, the related toxicity mechanisms, and pollution control, their relationship remains a mystery. Researchers generally focused on one topic independently without comprehensive considerations due to the knowledge gap between environmental science and human health. Indeed, the full life cycle control of HMs is crucial and should be reconsidered with the combination of the occurrence, transport, and fate of HMs in the environment. Therefore, we started by reviewing the environmental behaviors of HMs which are affected by a variety of natural factors as well as their physicochemical properties. Furthermore, the related toxicity mechanisms were discussed according to exposure route, toxicity mechanism, and adverse consequences. In addition, the current state-of-the-art of available technologies for pollution control of HMs wastewater and solid wastes were summarized. Finally, based on the research trend, we proposed that advanced in-operando characterizations will help us better understand the fundamental reaction mechanisms, and big data analysis approaches will aid in establishing the prediction model for risk management.
Collapse
Affiliation(s)
- Haoyu Deng
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yuling Tu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Han Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Ziyi Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yanyu Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Liyuan Chai
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Wenchao Zhang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Zhang Lin
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangdong 510006, China
| |
Collapse
|
10
|
Zhou W, Zhao Z, Yu Z, Hou Y, Keerthiga R, Fu A. Mitochondrial transplantation therapy inhibits the proliferation of malignant hepatocellular carcinoma and its mechanism. Mitochondrion 2022; 65:11-22. [DOI: 10.1016/j.mito.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/11/2022] [Accepted: 04/27/2022] [Indexed: 02/07/2023]
|
11
|
Liang S, Dong S, Liu W, Wang M, Tian S, Ai Y, Wang H. Accumulated ROS Activates HIF-1α-Induced Glycolysis and Exerts a Protective Effect on Sensory Hair Cells Against Noise-Induced Damage. Front Mol Biosci 2022; 8:806650. [PMID: 35096971 PMCID: PMC8790562 DOI: 10.3389/fmolb.2021.806650] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022] Open
Abstract
Noise exposure causes noise-induced hearing loss (NIHL). NIHL exhibits loss of inner ear sensory hair cells and is often irreparable. Although oxidative stress is involved in hearing loss, the complex mechanisms involved in NIHL are unclear. Hypoxia-inducible factor 1α (HIF-1α) has been suggested to be essential for protecting sensory hair cells. Additionally, it has been shown that ROS is involved in modulating the stability of HIF-1α. To investigate the NIHL pathogenesis, we established a tert-butyl hydroperoxide (t-BHP)-induced oxidative stress damage model in hair-like HEI-OC1 cells and an NIHL model in C57BL/6 mice. Protein and mRNA expression were determined, and biochemical parameters including reactive oxygen species (ROS) accumulation, glucose uptake, adenosine triphosphat (ATP) production, and mitochondrial content were evaluated. In HEI-OC1 cells, t-BHP induced ROS accumulation and reduced mitochondrial content and oxygen consumption, but the ATP level was unaffected. Additionally, there was increased glucose uptake and lactate release along with elevated expression of HIF-1α, glucose transporter 1, and several glycolytic enzymes. Consistently, noise trauma induced oxidative stress and the expression of HIF-1α and glycolytic enzymes in mice. Thus, we concluded that ROS induced HIF-1α expression, which promoted glycolysis, suggesting a metabolic shift maintained the ATP level to attenuate hair cell damage in NIHL.
Collapse
Affiliation(s)
- Shuo Liang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuohui Dong
- Department of General Surgery, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenwen Liu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Man Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shanshan Tian
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yu Ai
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- *Correspondence: Yu Ai, ; Haibo Wang,
| | - Haibo Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- *Correspondence: Yu Ai, ; Haibo Wang,
| |
Collapse
|
12
|
Sulkshane P, Ram J, Thakur A, Reis N, Kleifeld O, Glickman MH. Ubiquitination and receptor-mediated mitophagy converge to eliminate oxidation-damaged mitochondria during hypoxia. Redox Biol 2021; 45:102047. [PMID: 34175667 PMCID: PMC8254004 DOI: 10.1016/j.redox.2021.102047] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 12/14/2022] Open
Abstract
The contribution of the Ubiquitin-Proteasome System (UPS) to mitophagy has been largely attributed to the E3 ubiquitin ligase Parkin. Here we show that in response to the oxidative stress associated with hypoxia or the hypoxia mimic CoCl2, the damaged and fragmented mitochondria are removed by Parkin-independent mitophagy. Mitochondria isolated from hypoxia or CoCl2-treated cells exhibited extensive ubiquitination, predominantly Lysine 48-linked and involves the degradation of key mitochondrial proteins such as the mitofusins MFN1/2, or the import channel component TOM20. Reflecting the critical role of mitochondrial protein degradation, proteasome inhibition blocked CoCl2-induced mitophagy. The five conserved ubiquitin-binding autophagy receptors (p62, NDP52, Optineurin, NBR1, TAX1BP1) were dispensable for the ensuing mitophagy, suggesting that the mitophagy step itself was independent of ubiquitination. Instead, the expression of two ubiquitin-independent mitophagy receptor proteins BNIP3 and NIX was induced by hypoxia or CoCl2-treatment followed by their recruitment to the oxidation-damaged mitochondria. By employing BNIP3/NIX double knockout and DRP1-null cell lines, we confirmed that mitochondrial clearance relies on DRP1-dependent mitochondrial fragmentation and BNIP3/NIX-mediated mitophagy. General antioxidants such as N-Acetyl Cysteine (NAC) or the mitochondria-specific Mitoquinone prevented HIF-1α stabilization, ameliorated hypoxia-related mitochondrial oxidative stress, and suppressed mitophagy. We conclude that the UPS and receptor-mediated autophagy converge to eliminate oxidation-damaged mitochondria. Mitochondria-derived ROS contributes to HIF-1α stabilization during hypoxia. Oxidation-induced mitophagy entails ubiquitin-dependent and -independent steps. PINK1/Parkin & Ub-binding receptors are dispensable for oxidation-induced mitophagy. DRP1-dependent fragmentation facilitates oxidation-induced mitophagy. BNIP3/NIX partake in hypoxia-induced mitophagy, independent of mitochondrial ubiquitination.
Collapse
Affiliation(s)
- Prasad Sulkshane
- The Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Jonathan Ram
- The Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Anita Thakur
- The Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Noa Reis
- The Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Oded Kleifeld
- The Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel
| | - Michael H Glickman
- The Faculty of Biology, Technion Israel Institute of Technology, Haifa, 32000, Israel.
| |
Collapse
|
13
|
Cantoni O, Zito E, Fiorani M, Guidarelli A. Arsenite impinges on endoplasmic reticulum-mitochondria crosstalk to elicit mitochondrial ROS formation and downstream toxicity. Semin Cancer Biol 2021; 76:132-138. [PMID: 34089843 DOI: 10.1016/j.semcancer.2021.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 02/08/2023]
Abstract
Arsenite is an important carcinogen and toxic compound, causing various deleterious effects through multiple mechanisms. In this review, we focused on mitochondrial ROS (mitoROS) and discussed on the mechanisms mediating their formation. The metalloid promotes direct effects in mitochondria, resulting in superoxide formation only under conditions of increased mitochondrial Ca2+ concentration ([Ca2+]m). In this perspective, the time of exposure and concentration requirements for arsenite were largely conditioned by other effects of the metalloid in specific sites of the endoplasmic reticulum (ER). Arsenite induced a slow and limited mobilization of Ca2+ from IP3R via a saturable mechanism, failing to increase the [Ca2+]m. This effect was however associated with the triggering of an intraluminal crosstalk between the IP3R and the ryanodine receptor (RyR), causing a large and concentration dependent release of Ca2+ from RyR and a parallel increase in [Ca2+]m. Thus, the Ca2+-dependent mitoO2-. formation appears to be conditioned by the spatial/functional organization of the ER/mitochondria network and RyR expression. We also speculate on the possibility that the ER stress response might regulate the above effects on the intraluminal crosstalk between the IP3R and the RyR via oxidation of critical thiols mediated by the H2O2 locally released by oxidoreductin 1α.
Collapse
Affiliation(s)
- Orazio Cantoni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy.
| | - Ester Zito
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Mara Fiorani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Andrea Guidarelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| |
Collapse
|
14
|
Dwivedi S, Kushalan S, Paithankar JG, D'Souza LC, Hegde S, Sharma A. Environmental toxicants, oxidative stress and health adversities: interventions of phytochemicals. J Pharm Pharmacol 2021; 74:516-536. [PMID: 33822130 DOI: 10.1093/jpp/rgab044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/17/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Oxidative stress is the most common factor mediating environmental chemical-induced health adversities. Recently, an exponential rise in the use of phytochemicals as an alternative therapeutics against oxidative stress-mediated diseases has been documented. Due to their free radical quenching property, plant-derived natural products have gained substantial attention as a therapeutic agent in environmental toxicology. The present review aimed to describe the therapeutic role of phytochemicals in mitigating environmental toxicant-mediated sub-cellular and organ toxicities via controlling cellular antioxidant response. METHODS The present review has covered the recently related studies, mainly focussing on the free radical scavenging role of phytochemicals in environmental toxicology. KEY FINDINGS In vitro and in vivo studies have reported that supplementation of antioxidant-rich compounds can ameliorate the toxicant-induced oxidative stress, thereby improving the health conditions. Improving the cellular antioxidant pool has been considered as a mode of action of phytochemicals. However, the other cellular targets of phytochemicals remain uncertain. CONCLUSIONS Knowing the therapeutic value of phytochemicals to mitigate the chemical-induced toxicity is an initial stage; mechanistic understanding needs to decipher for development as therapeutics. Moreover, examining the efficacy of phytochemicals against mixer toxicity and identifying the bioactive molecule are major challenges in the field.
Collapse
Affiliation(s)
- Shiwangi Dwivedi
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| | - Sharanya Kushalan
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Bioresource and Biotechnology, Deralakatte, Mangaluru, India
| | - Jagdish Gopal Paithankar
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| | - Leonard Clinton D'Souza
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| | - Smitha Hegde
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Bioresource and Biotechnology, Deralakatte, Mangaluru, India
| | - Anurag Sharma
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Deralakatte, Mangaluru, India
| |
Collapse
|
15
|
Chen Y, Gaber T. Hypoxia/HIF Modulates Immune Responses. Biomedicines 2021; 9:biomedicines9030260. [PMID: 33808042 PMCID: PMC8000289 DOI: 10.3390/biomedicines9030260] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 02/07/2023] Open
Abstract
Oxygen availability varies throughout the human body in health and disease. Under physiological conditions, oxygen availability drops from the lungs over the blood stream towards the different tissues into the cells and the mitochondrial cavities leading to physiological low oxygen conditions or physiological hypoxia in all organs including primary lymphoid organs. Moreover, immune cells travel throughout the body searching for damaged cells and foreign antigens facing a variety of oxygen levels. Consequently, physiological hypoxia impacts immune cell function finally controlling innate and adaptive immune response mainly by transcriptional regulation via hypoxia-inducible factors (HIFs). Under pathophysiological conditions such as found in inflammation, injury, infection, ischemia and cancer, severe hypoxia can alter immune cells leading to dysfunctional immune response finally leading to tissue damage, cancer progression and autoimmunity. Here we summarize the effects of physiological and pathophysiological hypoxia on innate and adaptive immune activity, we provide an overview on the control of immune response by cellular hypoxia-induced pathways with focus on the role of HIFs and discuss the opportunity to target hypoxia-sensitive pathways for the treatment of cancer and autoimmunity.
Collapse
Affiliation(s)
- Yuling Chen
- Charité—Universitätsmedizin Berlin, Corporate Ember of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Charitéplatz 1, 10117 Berlin, Germany;
| | - Timo Gaber
- Charité—Universitätsmedizin Berlin, Corporate Ember of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Charitéplatz 1, 10117 Berlin, Germany;
- German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Correspondence: ; Tel.: +49-30-450-513364
| |
Collapse
|
16
|
McCarty MF, DiNicolantonio JJ, Lerner A. A Fundamental Role for Oxidants and Intracellular Calcium Signals in Alzheimer's Pathogenesis-And How a Comprehensive Antioxidant Strategy May Aid Prevention of This Disorder. Int J Mol Sci 2021; 22:2140. [PMID: 33669995 PMCID: PMC7926325 DOI: 10.3390/ijms22042140] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress and increased cytoplasmic calcium are key mediators of the detrimental effects on neuronal function and survival in Alzheimer's disease (AD). Pathways whereby these perturbations arise, and then prevent dendritic spine formation, promote tau hyperphosphorylation, further amplify amyloid β generation, and induce neuronal apoptosis, are described. A comprehensive program of nutraceutical supplementation, comprised of the NADPH oxidase inhibitor phycocyanobilin, phase two inducers, the mitochondrial antioxidant astaxanthin, and the glutathione precursor N-acetylcysteine, may have important potential for antagonizing the toxic effects of amyloid β on neurons and thereby aiding prevention of AD. Moreover, nutraceutical antioxidant strategies may oppose the adverse impact of amyloid β oligomers on astrocyte clearance of glutamate, and on the ability of brain capillaries to export amyloid β monomers/oligomers from the brain. Antioxidants, docosahexaenoic acid (DHA), and vitamin D, have potential for suppressing microglial production of interleukin-1β, which potentiates the neurotoxicity of amyloid β. Epidemiology suggests that a health-promoting lifestyle, incorporating a prudent diet, regular vigorous exercise, and other feasible measures, can cut the high risk for AD among the elderly by up to 60%. Conceivably, complementing such lifestyle measures with long-term adherence to the sort of nutraceutical regimen outlined here may drive down risk for AD even further.
Collapse
Affiliation(s)
| | | | - Aaron Lerner
- Chaim Sheba Medical Center, The Zabludowicz Research Center for Autoimmune Diseases, Tel Hashomer 5262000, Israel
| |
Collapse
|
17
|
Paithankar JG, Saini S, Dwivedi S, Sharma A, Chowdhuri DK. Heavy metal associated health hazards: An interplay of oxidative stress and signal transduction. CHEMOSPHERE 2021; 262:128350. [PMID: 33182141 DOI: 10.1016/j.chemosphere.2020.128350] [Citation(s) in RCA: 245] [Impact Index Per Article: 81.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/09/2020] [Accepted: 09/13/2020] [Indexed: 05/20/2023]
Abstract
Heavy metal-induced cellular and organismal toxicity have become a major health concern in biomedical science. Indiscriminate use of heavy metals in different sectors, such as, industrial-, agricultural-, healthcare-, cosmetics-, and domestic-sectors has contaminated environment matrices and poses a severe health concern. Xenobiotics mediated effect is a ubiquitous cellular response. Oxidative stress is one such prime cellular response, which is the result of an imbalance in the redox system. Further, oxidative stress is associated with macromolecular damages and activation of several cell survival and cell death pathways. Epidemiological as well as laboratory data suggest that oxidative stress-induced cellular response following heavy metal exposure is linked with an increased risk of neoplasm, neurological disorders, diabetes, infertility, developmental disorders, renal failure, and cardiovascular disease. During the recent past, a relation among heavy metal exposure, oxidative stress, and signaling pathways have been explored to understand the heavy metal-induced toxicity. Heavy metal-induced oxidative stress and its connection with different signaling pathways are complicated; therefore, the systemic summary is essential. Herein, an effort has been made to decipher the interplay among heavy metals/metalloids (Arsenic, Chromium, Cadmium, and Lead) exposures, oxidative stress, and signal transduction, which are essential to mount the cellular and organismal response. The signaling pathways involved in this interplay include NF-κB, NRF2, JAK-STAT, JNK, FOXO, and HIF.
Collapse
Affiliation(s)
- Jagdish Gopal Paithankar
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Sanjay Saini
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow, 226007, India
| | - Shiwangi Dwivedi
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India
| | - Anurag Sharma
- Nitte (Deemed to Be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Environmental Health and Toxicology, Kotekar-Beeri Road, Deralakatte, Mangaluru, 575018, India.
| | - Debapratim Kar Chowdhuri
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India.
| |
Collapse
|
18
|
Santos DE, Souza ADO, Tibério GJ, Alberici LC, Hartfelder K. Differential expression of antioxidant system genes in honey bee (Apis mellifera L.) caste development mitigates ROS-mediated oxidative damage in queen larvae. Genet Mol Biol 2020; 43:e20200173. [PMID: 33306776 PMCID: PMC7783730 DOI: 10.1590/1678-4685-gmb-2020-0173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023] Open
Abstract
The expression of morphological differences between the castes of social bees is
triggered by dietary regimes that differentially activate nutrient-sensing
pathways and the endocrine system, resulting in differential gene expression
during larval development. In the honey bee, Apis mellifera,
mitochondrial activity in the larval fat body has been postulated as a link that
integrates nutrient-sensing via hypoxia signaling. To understand regulatory
mechanisms in this link, we measured reactive oxygen species (ROS) levels,
oxidative damage to proteins, the cellular redox environment, and the expression
of genes encoding antioxidant factors in the fat body of queen and worker
larvae. Despite higher mean H2O2 levels in queens, there
were no differences in ROS-mediated protein carboxylation levels between the two
castes. This can be explained by their higher expression of antioxidant genes
(MnSOD, CuZnSOD, catalase, and
Gst1) and the lower ratio between reduced and oxidized
glutathione (GSH/GSSG). In worker larvae, the GSG/GSSH ratio is elevated and
antioxidant gene expression is delayed. Hence, the higher ROS production
resulting from the higher respiratory metabolism in queen larvae is effectively
counterbalanced by the up-regulation of antioxidant genes, avoiding oxidative
damage. In contrast, the delay in antioxidant gene expression in worker larvae
may explain their endogenous hypoxia response.
Collapse
Affiliation(s)
- Douglas Elias Santos
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Ribeirão Preto, SP, Brazil
| | - Anderson de Oliveira Souza
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Ciências BioMoleculares, Ribeirão Preto, SP, Brazil
| | - Gustavo Jacomini Tibério
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Ribeirão Preto, SP, Brazil
| | - Luciane Carla Alberici
- Universidade de São Paulo, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Ciências BioMoleculares, Ribeirão Preto, SP, Brazil
| | - Klaus Hartfelder
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Ribeirão Preto, SP, Brazil
| |
Collapse
|
19
|
Liu J, Niu Q, Hu Y, Ran S, Li S. The Mechanism of Trivalent Inorganic Arsenic on HIF-1α: a Systematic Review and Meta-analysis. Biol Trace Elem Res 2020; 198:449-463. [PMID: 32124230 DOI: 10.1007/s12011-020-02087-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/21/2020] [Indexed: 12/11/2022]
Abstract
The purpose of our study was to investigate the role of hypoxia-inducible factor-1α (HIF-1α) in arsenic-induced carcinogenesis. We included 39 articles for meta-analysis. The results showed that low-dose exposure to arsenic (≤ 10 μmol/L) could promote the expression of phosphatidylinositol 3-kinase (PI3K) and phosphorylation-protein kinase B (p-AKT). High-dose arsenic exposure (> 10 μmol/L) promoted the expression of PI3K, HIF-1α, vascular endothelial growth factor (VEGF), and p38MAPK (P38). Acute arsenic exposure (< 24 h) promoted the expression of PI3K, HIF-1α, and VEGF. Chronic arsenic exposure (≥ 24 h) promoted the expression of PI3K, p-AKT, and P38. Moreover, for normal tissue-derived cells, arsenic could induce the increased expression of PI3K, p-AKT, HIF-1α, and VEGF. For tumor tissue-derived cells, arsenic could induce the expression of PI3K, p-AKT, and P38. We found that arsenic exposure could activate the PI3K/AKT pathway, further induce the high expression of HIF-1α, and then upregulate the levels of miRNA-21 and VEGF, promote the expression of proliferating cell nuclear antigen (PCNA), and ultimately lead to malignant cell proliferation. Our findings indicated that arsenic could increase the expression of HIF-1α by activating the PI3K/AKT pathway and eventually induce malignant cell proliferation.
Collapse
Affiliation(s)
- Jiaqing Liu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Qiang Niu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Yunhua Hu
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Shanshan Ran
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Shugang Li
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, 832000, Xinjiang, China.
| |
Collapse
|
20
|
Hypoxia-Inducible Factor-1: A Potential Target to Treat Acute Lung Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8871476. [PMID: 33282113 PMCID: PMC7685819 DOI: 10.1155/2020/8871476] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/29/2020] [Accepted: 11/04/2020] [Indexed: 02/07/2023]
Abstract
Acute lung injury (ALI) is an acute hypoxic respiratory insufficiency caused by various intra- and extrapulmonary injury factors. Presently, excessive inflammation in the lung and the apoptosis of alveolar epithelial cells are considered to be the key factors in the pathogenesis of ALI. Hypoxia-inducible factor-1 (HIF-1) is an oxygen-dependent conversion activator that is closely related to the activity of reactive oxygen species (ROS). HIF-1 has been shown to play an important role in ALI and can be used as a potential therapeutic target for ALI. This manuscript will introduce the progress of HIF-1 in ALI and explore the feasibility of applying inhibitors of HIF-1 to ALI, which brings hope for the treatment of ALI.
Collapse
|
21
|
Chen J, Guan L, Zou M, He S, Li D, Chi W. Specific cyprinid HIF isoforms contribute to cellular mitochondrial regulation. Sci Rep 2020; 10:17246. [PMID: 33057104 PMCID: PMC7560723 DOI: 10.1038/s41598-020-74210-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 09/15/2020] [Indexed: 12/14/2022] Open
Abstract
Hypoxia-inducible factor 1 (HIF-1) functions as a master regulator of the cellular response to hypoxic stress. Two HIF-1α paralogs, HIF-1αA and HIF-1αB, were generated in euteleosts by the specific, third round of genome duplication, but one paralog was later lost in most families with the exception of cyprinid fish. How these duplicates function in mitochondrial regulation and whether their preservation contributes to the hypoxia tolerance demonstrated by cyprinid fish in freshwater environments is not clear. Here we demonstrated the divergent function of these two zebrafish Hif-1a paralogs through cellular approaches. The results showed that Hif-1aa played a role in tricarboxylic acid cycle by increasing the expression of Citrate synthase and the activity of mitochondrial complex II, and it also enhanced mitochondrial membrane potential and ROS production by reducing free Ca2+ in the cytosol. Hif-1ab promoted intracellular ATP content by up-regulating the activity of mitochondrial complexes I, III and IV and the expression of related genes. Furthermore, both the two zebrafish Hif-1a paralogs promoted mitochondrial mass and the expression level of mtDNA, contributing to mitochondrial biogenesis. Our study reveals the divergent functions of Hif-1aa and Hif-1ab in cellular mitochondrial regulation.
Collapse
Affiliation(s)
- Jing Chen
- College of Fisheries, National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan, 430070, China.,Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
| | - Lihong Guan
- College of Life Science and Technology, Xinxiang Medical University, Xinxiang, China
| | - Ming Zou
- College of Fisheries, National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan, 430070, China.,Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
| | - Shunping He
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Dapeng Li
- College of Fisheries, National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan, 430070, China.,Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
| | - Wei Chi
- College of Fisheries, National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan, 430070, China. .,Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China.
| |
Collapse
|
22
|
Liu T, Gao Q, Yang B, Yin C, Chang J, Qian H, Xing G, Wang S, Li F, Zhang Y, Chen D, Cai J, Shi H, Aschner M, Appiah-Kubi K, He D, Lu R. Differential susceptibility of PC12 and BRL cells and the regulatory role of HIF-1α signaling pathway in response to acute methylmercury exposure under normoxia. Toxicol Lett 2020; 331:82-91. [PMID: 32461003 PMCID: PMC7366344 DOI: 10.1016/j.toxlet.2020.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 12/24/2022]
Abstract
Hypoxia-inducible factor 1 (HIF-1) is a critical nuclear transcription factor for adaptation to hypoxia; its regulatable subunit, HIF-1α, is a cytoprotective regulatory factor. We examined the effects of methylmercury (MeHg) in rat adrenal pheochromocytoma (PC12) cells and the rat hepatocyte cell line BRL. MeHg treatment led to time- and concentration-dependent toxicity in both lines with statistically significant cytotoxic effects at 5 μM and 10 μM in PC12 and BRL, respectively, at 0.5 h. HIF-1α protein levels were significantly decreased at 2.5 (PC12) and 5 (BRL) μM MeHg. Furthermore, MeHg reduced the protein levels of HIF-1α and its target genes (glucose transporter-1, vascular endothelial growth factor-A and erythropoietin). Overexpression of HIF-1α significantly attenuated MeHg-induced toxicity in both cell types. Notably, cobalt chloride, a pharmacological inducer of HIF-1α, significantly attenuated MeHg-induced toxicity in BRL but not PC12. In both cell lines, an inhibitor of prolyl hydroxylase, 3, 4-dihydroxybenzoic acid, and the proteasome inhibitor carbobenzoxy-L-leucyl-L-leucyl-L-leucinal(MG132), antagonized MeHg toxicity, while 2-methoxyestradiol, a HIF-1α inhibitor, significantly increased it. These data establish that: (a) neuron-like PC12 cells are more sensitive to MeHg than non-neuronal BRL cells; (b) HIF-1α plays a similar role in MeHg-induced toxicity in both cell lines; and (c) upregulation of HIF-1α offers general cytoprotection against MeHg toxicity in PC12 and BRL cell lines.
Collapse
Affiliation(s)
- Tingting Liu
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Qianqian Gao
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Bobo Yang
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Changsheng Yin
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jie Chang
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Hai Qian
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Guangwei Xing
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Suhua Wang
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Fang Li
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yubin Zhang
- Department of Occupational Health and Toxicology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Da Chen
- School of Environment, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jiyang Cai
- Department of Physiology, College of Medicine, University of Oklahoma Health Science Center, Lindsay, Oklahoma City, OK 73104, USA
| | - Haifeng Shi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Kwaku Appiah-Kubi
- Department of Applied Biology, C. K. Tedam University of Technology and Applied Sciences, Navrongo, UK-0215-5321, Ghana
| | - Dawei He
- Center for Experimental Research, Kunshan Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu 215130, China
| | - Rongzhu Lu
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Center for Experimental Research, Kunshan Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu 215130, China.
| |
Collapse
|
23
|
The Role of Reactive Oxygen Species in Arsenic Toxicity. Biomolecules 2020; 10:biom10020240. [PMID: 32033297 PMCID: PMC7072296 DOI: 10.3390/biom10020240] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 12/13/2022] Open
Abstract
Arsenic poisoning is a global health problem. Chronic exposure to arsenic has been associated with the development of a wide range of diseases and health problems in humans. Arsenic exposure induces the generation of intracellular reactive oxygen species (ROS), which mediate multiple changes to cell behavior by altering signaling pathways and epigenetic modifications, or cause direct oxidative damage to molecules. Antioxidants with the potential to reduce ROS levels have been shown to ameliorate arsenic-induced lesions. However, emerging evidence suggests that constructive activation of antioxidative pathways and decreased ROS levels contribute to chronic arsenic toxicity in some cases. This review details the pathways involved in arsenic-induced redox imbalance, as well as current studies on prophylaxis and treatment strategies using antioxidants.
Collapse
|
24
|
Guidarelli A, Cerioni L, Fiorani M, Catalani A, Cantoni O. Arsenite-Induced Mitochondrial Superoxide Formation: Time and Concentration Requirements for the Effects of the Metalloid on the Endoplasmic Reticulum and Mitochondria. J Pharmacol Exp Ther 2020; 373:62-71. [DOI: 10.1124/jpet.119.262469] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/13/2020] [Indexed: 02/06/2023] Open
|
25
|
Yin X, Wei Y, Song W, Zhang H, Liu G, Chen Y, Li LZ, Alolga RN, Ma G, Reiter RJ, Li J, Shi H. Melatonin as an inducer of arecoline and their coordinated roles in anti-oxidative activity and immune responses. Food Funct 2020; 11:8788-8799. [DOI: 10.1039/d0fo01841d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Melatonin and it induced arecoline in arecoline play coordinated roles in immune responses.
Collapse
|
26
|
Guidarelli A, Fiorani M, Cerioni L, Cantoni O. The compartmentalised nature of the mechanisms governing superoxide formation and scavenging in cells exposed to arsenite. Toxicol Appl Pharmacol 2019; 384:114766. [DOI: 10.1016/j.taap.2019.114766] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/22/2019] [Accepted: 09/23/2019] [Indexed: 12/17/2022]
|
27
|
Rodríguez-Enríquez S, Marín-Hernández Á, Gallardo-Pérez JC, Pacheco-Velázquez SC, Belmont-Díaz JA, Robledo-Cadena DX, Vargas-Navarro JL, Corona de la Peña NA, Saavedra E, Moreno-Sánchez R. Transcriptional Regulation of Energy Metabolism in Cancer Cells. Cells 2019; 8:cells8101225. [PMID: 31600993 PMCID: PMC6830338 DOI: 10.3390/cells8101225] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/19/2019] [Accepted: 10/01/2019] [Indexed: 01/17/2023] Open
Abstract
Cancer development, growth, and metastasis are highly regulated by several transcription regulators (TRs), namely transcription factors, oncogenes, tumor-suppressor genes, and protein kinases. Although TR roles in these events have been well characterized, their functions in regulating other important cancer cell processes, such as metabolism, have not been systematically examined. In this review, we describe, analyze, and strive to reconstruct the regulatory networks of several TRs acting in the energy metabolism pathways, glycolysis (and its main branching reactions), and oxidative phosphorylation of nonmetastatic and metastatic cancer cells. Moreover, we propose which possible gene targets might allow these TRs to facilitate the modulation of each energy metabolism pathway, depending on the tumor microenvironment.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Norma Angélica Corona de la Peña
- Unidad de Investigación Médica en Trombosis, Hemostasia y Aterogénesis, Hospital General Regional Carlos McGregor-Sánchez, México CP 03100, Mexico.
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México 14080, Mexico.
| | - Rafael Moreno-Sánchez
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México 14080, Mexico.
| |
Collapse
|
28
|
Lu Y, Wang L, Ding W, Wang D, Wang X, Luo Q, Zhu L. Ammonia mediates mitochondrial uncoupling and promotes glycolysis via HIF-1 activation in human breast cancer MDA-MB-231 cells. Biochem Biophys Res Commun 2019; 519:153-159. [PMID: 31481238 DOI: 10.1016/j.bbrc.2019.08.152] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 08/28/2019] [Indexed: 12/20/2022]
Abstract
It has been reported that ammonia produced by glutaminolysis activates the HIF-1 pathway in several types of cancer cells, but the underlying mechanisms remain unclear. In this study, the effects of ammonia on the activation of HIF-1 pathway and glycolysis in MDA-MB-231 breast cancer cells were investigated and the underlying mechanisms involved were elucidated. The results showed that NH4Cl concentration-dependently increased the protein level of HIF-1α and enhanced the transactivation activity of HIF-1 in MDA-MB-231 cells. In addition, NH4Cl increased the expression of GluT1 and LDHA and promoted aerobic glycolysis by activating the HIF-1 pathway. Further study revealed that NH4Cl increased the mitochondrial ROS level and decreased the cellular Fe2+ level in MDA-MB-231 cells. Activation of the HIF-1 pathway induced by NH4Cl was inhibited by addition of the antioxidant NAC or the NADPH oxidase (NOX) inhibitor apocynin, indicating the involvement of the NOX-induced ROS generation. When MDA-MB-231 cells were treated with NH4Cl, the oxygen consumption of cells increased, followed by the decreased mitochondrial membrane potential and cellular ATP level, indicating the uncoupling of mitochondria. In conclusion, NH4Cl activated the HIF-1 signaling pathway and promoted aerobic glycolysis in MDA-MB-231 cells, likely through the promotion of mitochondrial ROS release and mitochondrial uncoupling.
Collapse
Affiliation(s)
- Yapeng Lu
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China.
| | - Lu Wang
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Wangwang Ding
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Dan Wang
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Xueting Wang
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Qianqian Luo
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Li Zhu
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China.
| |
Collapse
|
29
|
Reactive Oxygen Species Signaling Promotes Hypoxia-Inducible Factor 1α Stabilization in Sonic Hedgehog-Driven Cerebellar Progenitor Cell Proliferation. Mol Cell Biol 2019; 39:MCB.00268-18. [PMID: 30692272 DOI: 10.1128/mcb.00268-18] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 01/23/2019] [Indexed: 12/21/2022] Open
Abstract
Cerebellar development is a highly regulated process involving numerous factors acting with high specificity, both temporally and by location. Part of this process involves extensive proliferation of cerebellar granule neuron precursors (CGNPs) induced by Sonic Hedgehog (SHH) signaling, but downstream effectors of mitogenic signaling are still being elucidated. Using primary CGNP cultures, a well-established model for SHH-driven proliferation, we show that SHH-treated CGNPs feature high levels of hypoxia-inducible factor 1α (HIF1α), which is known to promote glycolysis, stemness, and angiogenesis. In CGNPs cultured under normoxic conditions, HIF1α is posttranslationally stabilized in a manner dependent upon reactive oxygen species (ROS) and NADPH oxidase (NOX), both of which are also upregulated in these cells. Inhibition of NOX activity resulted in HIF1α destabilization and reduced levels of cyclin D2, a marker of CGNP proliferation. As CGNPs are the putative cells of origin for the SHH subtype of medulloblastoma and aberrant SHH signaling is implicated in other neoplasms, these studies may also have future relevance in the context of cancer. Taken together, our findings suggest that a better understanding of nonhypoxic HIF1α stabilization through NOX-induced ROS generation can provide insights into normal cell proliferation in cerebellar development and SHH-driven cell proliferation in cancers with aberrant SHH signaling.
Collapse
|
30
|
Lamadema N, Burr S, Brewer AC. Dynamic regulation of epigenetic demethylation by oxygen availability and cellular redox. Free Radic Biol Med 2019; 131:282-298. [PMID: 30572012 DOI: 10.1016/j.freeradbiomed.2018.12.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/04/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
Abstract
The chromatin structure of the mammalian genome must facilitate both precisely-controlled DNA replication together with tightly-regulated gene transcription. This necessarily involves complex mechanisms and processes which remain poorly understood. It has long been recognised that the epigenetic landscape becomes established during embryonic development and acts to specify and determine cell fate. In addition, the chromatin structure is highly dynamic and allows for both cellular reprogramming and homeostatic modulation of cell function. In this respect, the functions of epigenetic "erasers", which act to remove covalently-linked epigenetic modifications from DNA and histones are critical. The enzymatic activities of the TET and JmjC protein families have been identified as demethylases which act to remove methyl groups from DNA and histones, respectively. Further, they are characterised as members of the Fe(II)- and 2-oxoglutarate-dependent dioxygenase superfamily. This provides the intriguing possibility that their enzymatic activities may be modulated by cellular metabolism, oxygen availability and redox-based mechanisms, all of which are likely to display dynamic cell- and tissue-specific patterns of flux. Here we discuss the current evidence for such [O2]- and redox-dependent regulation of the TET and Jmjc demethylases and the potential physiological and pathophysiological functional consequences of such regulation.
Collapse
Affiliation(s)
- Nermina Lamadema
- School of Cardiovascular Medicine & Sciences, King's College London BHF Centre of Research Excellence, United Kingdom
| | - Simon Burr
- School of Cardiovascular Medicine & Sciences, King's College London BHF Centre of Research Excellence, United Kingdom
| | - Alison C Brewer
- School of Cardiovascular Medicine & Sciences, King's College London BHF Centre of Research Excellence, United Kingdom.
| |
Collapse
|
31
|
Fan P, Xie XH, Chen CH, Peng X, Zhang P, Yang C, Wang YT. Molecular Regulation Mechanisms and Interactions Between Reactive Oxygen Species and Mitophagy. DNA Cell Biol 2018; 38:10-22. [PMID: 30556744 DOI: 10.1089/dna.2018.4348] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The generation of reactive oxygen species (ROS) in response to oxidative stress has important effects on cell development, normal function, and survival. It may cause oxidative damage to intracellular macromolecular substances and mitochondria through several signaling pathways. However, the damaged mitochondria promote further ROS generation, creating a vicious cycle that can cause cellular injury. In addition, excessive ROS produced by damaged mitochondria can trigger mitophagy, a process that can scavenge impaired mitochondria and reduce ROS level to maintain stable mitochondrial function in cells. Therefore, mitophagy heaps maintain cellular homeostasis under oxidative stress. In this article, we review recent advances in cellular damage caused by excessive ROS, the mechanism of mitophagy, and the close relationship between ROS and mitophagy. This review provides a new perspective on therapeutic strategies for related diseases.
Collapse
Affiliation(s)
- Pan Fan
- 1 Department of Spine Center, Zhongda Hospital, Medical School, Southeast University , Nanjing, Jiangsu, China
| | - Xing-Hui Xie
- 1 Department of Spine Center, Zhongda Hospital, Medical School, Southeast University , Nanjing, Jiangsu, China
| | - Chang-Hong Chen
- 2 Department of Orthopaedic Surgery, Jiangyin Hospital of Traditional Chinese Medicine , Wuxi, Jiangsu, China
| | - Xin Peng
- 1 Department of Spine Center, Zhongda Hospital, Medical School, Southeast University , Nanjing, Jiangsu, China
| | - Po Zhang
- 1 Department of Spine Center, Zhongda Hospital, Medical School, Southeast University , Nanjing, Jiangsu, China
| | - Cheng Yang
- 1 Department of Spine Center, Zhongda Hospital, Medical School, Southeast University , Nanjing, Jiangsu, China
| | - Yun-Tao Wang
- 1 Department of Spine Center, Zhongda Hospital, Medical School, Southeast University , Nanjing, Jiangsu, China
| |
Collapse
|
32
|
Reichard A, Asosingh K. The role of mitochondria in angiogenesis. Mol Biol Rep 2018; 46:1393-1400. [PMID: 30460535 DOI: 10.1007/s11033-018-4488-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 11/09/2018] [Indexed: 12/19/2022]
Abstract
Angiogenesis extends pre-existing blood vessels to improve oxygen and nutrient delivery to inflamed or otherwise hypoxic tissues. Mitochondria are integral in this process, controlling cellular metabolism to regulate the proliferation, migration, and survival of endothelial cells which comprise the inner lining of blood vessels. Mitochondrial Complex III senses hypoxic conditions and generates mitochondrial reactive oxygen species which stabilize hypoxia-inducible factor (HIF-1α) protein. HIF-1α induces the transcription of the vegfa gene, allowing the translation of vascular endothelial growth factor protein, which interacts with mature and precursor endothelial cells, mobilizing them to form new blood vessels. This cascade can be inhibited at specific points by means of gene knockdown, enzyme treatment, and introduction of naturally occurring small molecules, providing insight into the relationship between mitochondria and angiogenesis. This review focuses on current knowledge of the overall role of mitochondria in controlling angiogenesis and outlines known inhibitors that have been used to elucidate this pathway which may be useful in future research to control angiogenesis in vivo.
Collapse
Affiliation(s)
- Andrew Reichard
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic, NC22 9500 Euclid Ave., Cleveland, OH, 44195, USA
| | - Kewal Asosingh
- Department of Inflammation and Immunity, Lerner Research Institute, The Cleveland Clinic, NC22 9500 Euclid Ave., Cleveland, OH, 44195, USA. .,Flow Cytometry Core, Lerner Research Institute, The Cleveland Clinic, Cleveland, OH, USA.
| |
Collapse
|
33
|
Fiorani M, Guidarelli A, Capellacci V, Cerioni L, Crinelli R, Cantoni O. The dual role of mitochondrial superoxide in arsenite toxicity: Signaling at the boundary between apoptotic commitment and cytoprotection. Toxicol Appl Pharmacol 2018. [DOI: 10.1016/j.taap.2018.03.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
34
|
Helicobacter pylori infection promotes Aquaporin 3 expression via the ROS–HIF-1α–AQP3–ROS loop in stomach mucosa: a potential novel mechanism for cancer pathogenesis. Oncogene 2018; 37:3549-3561. [DOI: 10.1038/s41388-018-0208-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/18/2017] [Accepted: 02/12/2018] [Indexed: 12/21/2022]
|
35
|
Alabed Alibrahim E, Andriantsitohaina R, Hardonnière K, Soleti R, Faure S, Simard G. A redox-sensitive signaling pathway mediates pro-angiogenic effect of chlordecone via estrogen receptor activation. Int J Biochem Cell Biol 2018; 97:83-97. [PMID: 29452237 DOI: 10.1016/j.biocel.2018.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 12/21/2017] [Accepted: 02/12/2018] [Indexed: 12/20/2022]
Abstract
AIM Chlordecone is able to induce pro-angiogenic effect through an estrogen receptor (ERα) pathway involving NO release and VEGF. The present study aimed to determine the molecular mechanisms by which chlordecone promotes angiogenesis in human endothelial cells. RESULTS High but not low concentration of chlordecone increased mitochondrial respiratory capacity and mitochondrial DNA content in endothelial cells. The ROS scavenger MnTMPyP was able to prevent the increase of both VEGF expression and capillary length induced by chlordecone. A significant increase of cytoplasmic O2- production was observed after 1 and 4 h incubation of chlordecone, but not after 2 h. The NADPH oxidase inhibitor apocynin or silencing p47phox prevented angiogenesis and tube formation but also the increase in production of O2- at 1 h. In addition, apocynin as well silencing p47phox prevented eNOS activation and the NO synthase inhibitor L-NAME inhibited mitochondrial O2-production. All the previous effects of chlordecone were prevented by fulvestrant. CONCLUSION Our results indicate that an adaptation of the mitochondrial energy metabolism occurs in the chlordecone angiogenic response. Finally, we showed that chlordecone induces endothelial cells angiogenesis by a cross-talk involving NADPH oxidase and mitochondrial O2-via a NO sensitive pathways through activation of ERα. These findings propose that a molecular mechanism may partly explain the epidemiological evidence implicating chlordecone as risk factor carcinogenesis.
Collapse
Affiliation(s)
- Eid Alabed Alibrahim
- INSERM U1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Université Bretagne-Loire, Angers, France
| | - Ramaroson Andriantsitohaina
- INSERM U1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Université Bretagne-Loire, Angers, France
| | - Kévin Hardonnière
- MINT, Univ Angers, INSERM U1066, CNRS 6021, Université Bretagne Loire, IBS-CHU, 4 Rue Larrey, F-49933 Angers, France
| | - Raffaella Soleti
- INSERM U1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Université Bretagne-Loire, Angers, France
| | - Sébastien Faure
- INSERM U1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Université Bretagne-Loire, Angers, France
| | - Gilles Simard
- INSERM U1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Université Bretagne-Loire, Angers, France; Départment de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.
| |
Collapse
|
36
|
Ha JH, Radhakrishnan R, Jayaraman M, Yan M, Ward JD, Fung KM, Moxley K, Sood AK, Isidoro C, Mukherjee P, Song YS, Dhanasekaran DN. LPA Induces Metabolic Reprogramming in Ovarian Cancer via a Pseudohypoxic Response. Cancer Res 2018; 78:1923-1934. [PMID: 29386184 DOI: 10.1158/0008-5472.can-17-1624] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 12/08/2017] [Accepted: 01/26/2018] [Indexed: 11/16/2022]
Abstract
Although hypoxia has been shown to reprogram cancer cells toward glycolytic shift, the identity of extrinsic stimuli that induce metabolic reprogramming independent of hypoxia, especially in ovarian cancer, is largely unknown. In this study, we use patient-derived ovarian cancer cells and high-grade serous ovarian cancer cell lines to demonstrate that lysophosphatidic acid (LPA), a lipid growth factor and GPCR ligand whose levels are substantially increased in ovarian cancer patients, triggers glycolytic shift in ovarian cancer cells. Inhibition of the G protein α-subunit Gαi2 disrupted LPA-stimulated aerobic glycolysis. LPA stimulated a pseudohypoxic response via Rac-mediated activation of NADPH oxidase and generation of reactive oxygen species, resulting in activation of HIF1α. HIF1α in turn induced expression of glucose transporter-1 and the glycolytic enzyme hexokinase-2 (HKII). Treatment of mice bearing ovarian cancer xenografts with an HKII inhibitor, 3-bromopyruvate, attenuated tumor growth and conferred a concomitant survival advantage. These studies reveal a critical role for LPA in metabolic reprogramming of ovarian cancer cells and identify this node as a promising therapeutic target in ovarian cancer.Significance: These findings establish LPA as a potential therapeutic target in ovarian cancer, revealing its role in the activation of HIF1α-mediated metabolic reprogramming in this disease. Cancer Res; 78(8); 1923-34. ©2018 AACR.
Collapse
Affiliation(s)
- Ji Hee Ha
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | | | - Muralidharan Jayaraman
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Mingda Yan
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jeremy D Ward
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Kar-Ming Fung
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Katherine Moxley
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Obstetrics and Gynecology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, and the Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ciro Isidoro
- Università del Piemonte Orientale, Novara, Italy
| | - Priyabrata Mukherjee
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.,Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Yong Sang Song
- Cancer Research Institute, Seoul National University, College of Medicine, Seoul, Korea
| | - Danny N Dhanasekaran
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma. .,Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| |
Collapse
|
37
|
Guidarelli A, Fiorani M, Cerioni L, Scotti M, Cantoni O. Arsenite induces DNA damage via mitochondrial ROS and induction of mitochondrial permeability transition. Biofactors 2017; 43:673-684. [PMID: 28703385 DOI: 10.1002/biof.1375] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 06/16/2017] [Accepted: 06/21/2017] [Indexed: 02/06/2023]
Abstract
Arsenite is an established DNA-damaging agent and human carcinogen. We initially selected conditions in which the metalloid causes DNA strand scission in the absence of detectable apoptotic DNA degradation in U937 cells. This response was suppressed by catalase and by treatments (rotenone and ascorbic acid), or manipulations (respiration-deficient phenotype), preventing the mitochondrial formation of O2-. ( mitoO2-.). MitoO2-., and its dismutation product, H2 O2 , are therefore critically involved in the arsenite-dependent DNA-damaging response. We then established a link between mitoO2-./H2 O2 and mitochondrial permeability transition (MPT), and found that this second event also promoted the formation of DNA-damaging species. As a consequence, the DNA damage induced by arsenite, in addition to being abolished by the aforementioned treatments/manipulations, was also significantly reduced by the MPT inhibitor cyclosporin A (CsA). A CsA-sensitive induction of p53 mRNA expression was also detected. Finally, evidence of CsA-sensitive DNA strand scission was also obtained in MCF-7, HT22, and NCTC-2544 cells. MitoO2-./H2 O2 therefore directly mediates DNA damage induced by arsenite and indirectly promotes the formation of additional DNA-damaging species via the induction of MPT. © 2017 BioFactors, 43(5):673-684, 2017.
Collapse
Affiliation(s)
- Andrea Guidarelli
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", 61029, Urbino, Italy
| | - Mara Fiorani
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", 61029, Urbino, Italy
| | - Liana Cerioni
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", 61029, Urbino, Italy
| | - Maddalena Scotti
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", 61029, Urbino, Italy
| | - Orazio Cantoni
- Dipartimento di Scienze Biomolecolari, Università degli Studi di Urbino "Carlo Bo", 61029, Urbino, Italy
| |
Collapse
|
38
|
Mehrzad J, Mahmudy Gharaie MH, Taheri M. Effects of arsenic on porcine dendritic cells in vitro. J Immunotoxicol 2017; 14:1-8. [PMID: 28094582 DOI: 10.1080/1547691x.2016.1249985] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Exposure to arsenic (As) is an ongoing, and in some places increasing, health problem. Still, however, the effects of As exposure on the immune system are not well understood. Dendritic cells (DC) are a critical immune cell that bridges the innate and adaptive immune systems. To determine the impact of inorganic (i)As exposure on DC, the effects of (geo)anthropogenically relevant levels of NaAsO2 on the function of porcine monocyte-derived DC (MoDC) were evaluated in an in vitro model. The results showed a low dose of iAs reduced the phagocytic capacity of MoDC. Furthermore, although surface expression of DC activation markers, such as major histocompatibility complex (MHC)-II, CD80/86, CD40 and CD25, were only slightly changed, MoDC T-cell proliferation-inducing capacity was remarkably diminished by iAs treatment. Additionally, iAs induced significant interleukin (IL)-6 secretion by MoDC after 12- or 24-h incubation, whereas IL-1β secretion was only significantly up-regulated after 12 h. The secretion patterns of IL-8, tumor necrosis factor α (TNFα and IL-10 by iAs-treated MoDC were almost similar to that by mock-treated MoDC. Considering the broad roles of DC in immunobiology, this finding deepens the understanding of molecular mechanisms/functional consequences underpinning the immunopathology, inflammation, and increases in infection arising from As exposure.
Collapse
Affiliation(s)
- Jalil Mehrzad
- a Department of Microbiology and Immunology, Faculty of Veterinary Medicine , University of Tehran , Tehran , Iran
| | | | - Masumeh Taheri
- b Department of Geology, Faculty of Basic Sciences , Ferdowsi University of Mashhad , Mashhad , Iran
| |
Collapse
|
39
|
Rodríguez ME, Catrinacio C, Ropolo A, Rivarola VA, Vaccaro MI. A novel HIF-1α/VMP1-autophagic pathway induces resistance to photodynamic therapy in colon cancer cells. Photochem Photobiol Sci 2017; 16:1631-1642. [DOI: 10.1039/c7pp00161d] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This is the first report showing that PDT-induced autophagy is directly mediated by HIF-1α and linked to VMP1 as a PDT-induced resistance mechanism.
Collapse
Affiliation(s)
- M. E. Rodríguez
- Universidad Nacional de Río Cuarto
- Departamento de Biología Molecular. Río Cuarto (5800)
- Córdoba
- Argentina
- Universidad de Buenos Aires. CONICET. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular (IBIMOL)
| | - C. Catrinacio
- Universidad de Buenos Aires. CONICET. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular (IBIMOL)
- Buenos Aires
- Argentina
| | - A. Ropolo
- Universidad de Buenos Aires. CONICET. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular (IBIMOL)
- Buenos Aires
- Argentina
| | - V. A. Rivarola
- Universidad Nacional de Río Cuarto
- Departamento de Biología Molecular. Río Cuarto (5800)
- Córdoba
- Argentina
| | - M. I. Vaccaro
- Universidad de Buenos Aires. CONICET. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular (IBIMOL)
- Buenos Aires
- Argentina
| |
Collapse
|
40
|
Sharpe MA, Baskin DS. Monoamine oxidase B levels are highly expressed in human gliomas and are correlated with the expression of HiF-1α and with transcription factors Sp1 and Sp3. Oncotarget 2016; 7:3379-93. [PMID: 26689994 PMCID: PMC4823113 DOI: 10.18632/oncotarget.6582] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/16/2015] [Indexed: 11/25/2022] Open
Abstract
Monoamine oxidases A and B (MAOA and MAOB) are highly expressed in many cancers. Here we investigated the level of MAOB in gliomas and confirmed its high expression. We found that MAOB levels correlated with tumor grade and hypoxia-inducible factor 1-alpha (HiF-1α) expression. HiF-1α was localized to the nuclei in high-grade gliomas, but it was primarily cytosolic in low-grade gliomas and normal human astrocytes. Expression of both glial fibrillary acidic protein (GFAP) and MAOB are correlated to HiF-1α expression levels. Levels of MAOB are correlated by the levels of transcription factor Sp3 in the majority of GBM examined, but this control of MAOB expression by Sp3 in low grade astrocytic gliomas is significantly different from control in the in the majority of glioblastomas. The current findings support previous suggestions that MAOB can be exploited for the killing of cancer cells. Selective cell toxicity can be achieved by designing non-toxic prodrugs that require MAOB for their catalytic conversion into mature cytotoxic chemotherapeutics.
Collapse
Affiliation(s)
- Martyn A Sharpe
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, Houston, TX 77030, USA
| | - David S Baskin
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, Houston, TX 77030, USA
| |
Collapse
|
41
|
Nie Y, Huang C, Zhong S, Wortley MA, Luo Y, Luo W, Xie Y, Lai K, Zhong N. Cigarette smoke extract (CSE) induces transient receptor potential ankyrin 1(TRPA1) expression via activation of HIF1αin A549 cells. Free Radic Biol Med 2016; 99:498-507. [PMID: 27480844 DOI: 10.1016/j.freeradbiomed.2016.07.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 07/28/2016] [Accepted: 07/28/2016] [Indexed: 11/26/2022]
Abstract
We previously found that transient receptor potential ankyrin 1 (TRPA1) in guinea pig tracheal epithelial cells was elevated after 14 days of cigarette smoke (CS) exposure. However, the mechanism underlying CS-induced TRPA1 expression remains unknown. Here, we explored whether cigarette smoke extract (CSE)-induced TRPA1 expression is related with modulation of HIF1α in A549 cells. Our results showed that CSE increased TRPA1 expression in A549 cells, decreased Iκ B, PHD2, and HDAC2, and increased ROS release and nuclear translocation of NF-κ B and HIF1α. Moreover, HIF1α siRNA and/or MG132 (a proteasome inhibitor) pretreatment significantly inhibited CSE-induced TRPA1 expression and HIF1α nuclear translocation in A549 cells. However, HIF1α siRNA pretreatment did not affect CSE-induced NF-κ B nuclear translocation, suggesting that CSE-induced TRPA1 expression in A549 cells is directly mediated by HIF1α, but not by NF-κ B. Similar to CSE treatment, treatment of A549 cells with LPS caused significant increases in nuclear translocation of NF-κ B and HIF1α mRNA expression, but did not alter TRPA1 mRNA expression. However, pretreatment with PHD2 siRNA did result in increased TRPA1 mRNA expression in LPS-treated A549 cells; an effect that was inhibited by SN50 (a NF-κ B inhibitor). It suggests a role for NF-κ B to indirectly regulate TRPA1 mRNA expression via modulating HIF1α mRNA transcription. In addition, treatment cells with HDAC2 siRNA plus 2%CSE resulted in increased HIF1α nuclear translocation and TRPA1 expression, which was significantly inhibited by MG132 and HIF1α siRNA. These results suggest that HDAC2 indirectly modulates TRPA1 expression by promoting the DNA-binding activity of HIF1α. These findings show that CSE increases TRPA1 expression in airway epithelial cells by directly activating HIF1α, and that this increase in TRPA1 expression is indirectly regulated via NF-κ B, PHD2 and HDAC2 modulation of HIF1α activity.
Collapse
Affiliation(s)
- Yichu Nie
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China; Respiratory Pharmacology Group, Airway Disease Section, National Heart & Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
| | - Chuqin Huang
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China
| | - Shan Zhong
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China
| | - Michael A Wortley
- Respiratory Pharmacology Group, Airway Disease Section, National Heart & Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
| | - Yulong Luo
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China
| | - Wei Luo
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China
| | - Yanqing Xie
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China
| | - Kefang Lai
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China.
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No 151 YanJiang Road, Yuexiu Dist., Guangzhou 510120, People's Republic of China
| |
Collapse
|
42
|
Prolyl hydroxylase domain enzymes and their role in cell signaling and cancer metabolism. Int J Biochem Cell Biol 2016; 80:71-80. [PMID: 27702652 DOI: 10.1016/j.biocel.2016.09.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 09/28/2016] [Accepted: 09/30/2016] [Indexed: 12/20/2022]
Abstract
The prolyl hydroxylase domain (PHD) enzymes regulate the stability of the hypoxia-inducible factor (HIF) in response to oxygen availability. During oxygen limitation, the inhibition of PHD permits the stabilization of HIF, allowing the cellular adaptation to hypoxia. This adaptation is especially important for solid tumors, which are often exposed to a hypoxic environment. However, and despite their original role as the oxygen sensors of the cell, PHD are currently known to display HIF-independent and hydroxylase-independent functions in the control of different cellular pathways, including mTOR pathway, NF-kB pathway, apoptosis and cellular metabolism. In this review, we summarize the recent advances in the regulation and functions of PHD in cancer signaling and cell metabolism.
Collapse
|
43
|
Guidarelli A, Fiorani M, Carloni S, Cerioni L, Balduini W, Cantoni O. The study of the mechanism of arsenite toxicity in respiration-deficient cells reveals that NADPH oxidase-derived superoxide promotes the same downstream events mediated by mitochondrial superoxide in respiration-proficient cells. Toxicol Appl Pharmacol 2016; 307:35-44. [DOI: 10.1016/j.taap.2016.07.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/29/2016] [Accepted: 07/18/2016] [Indexed: 11/30/2022]
|
44
|
Luz AL, Godebo TR, Bhatt DP, Ilkayeva OR, Maurer LL, Hirschey MD, Meyer JN. From the Cover: Arsenite Uncouples Mitochondrial Respiration and Induces a Warburg-like Effect in Caenorhabditis elegans. Toxicol Sci 2016; 152:349-62. [PMID: 27208080 PMCID: PMC4960910 DOI: 10.1093/toxsci/kfw093] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Millions of people worldwide are chronically exposed to arsenic through contaminated drinking water. Despite decades of research studying the carcinogenic potential of arsenic, the mechanisms by which arsenic causes cancer and other diseases remain poorly understood. Mitochondria appear to be an important target of arsenic toxicity. The trivalent arsenical, arsenite, can induce mitochondrial reactive oxygen species production, inhibit enzymes involved in energy metabolism, and induce aerobic glycolysis in vitro, suggesting that metabolic dysfunction may be important in arsenic-induced disease. Here, using the model organism Caenorhabditis elegans and a novel metabolic inhibition assay, we report an in vivo induction of aerobic glycolysis following arsenite exposure. Furthermore, arsenite exposure induced severe mitochondrial dysfunction, including altered pyruvate metabolism; reduced steady-state ATP levels, ATP-linked respiration and spare respiratory capacity; and increased proton leak. We also found evidence that induction of autophagy is an important protective response to arsenite exposure. Because these results demonstrate that mitochondria are an important in vivo target of arsenite toxicity, we hypothesized that deficiencies in mitochondrial electron transport chain genes, which cause mitochondrial disease in humans, would sensitize nematodes to arsenite. In agreement with this, nematodes deficient in electron transport chain complexes I, II, and III, but not ATP synthase, were sensitive to arsenite exposure, thus identifying a novel class of gene-environment interactions that warrant further investigation in the human populace.
Collapse
Affiliation(s)
- Anthony L Luz
- *Nicholas School of the Environment, Duke University, Durham, North Carolina
| | - Tewodros R Godebo
- *Nicholas School of the Environment, Duke University, Durham, North Carolina
| | | | - Olga R Ilkayeva
- Duke Molecular Physiology Institute Sarah W. Stedman Nutrition and Metabolism Center
| | - Laura L Maurer
- *Nicholas School of the Environment, Duke University, Durham, North Carolina
| | - Matthew D Hirschey
- Duke Molecular Physiology Institute Sarah W. Stedman Nutrition and Metabolism Center Departments of Medicine and Pharmacology & Cancer Biology, Duke University School of Medicine, Durham, North Carolina
| | - Joel N Meyer
- *Nicholas School of the Environment, Duke University, Durham, North Carolina
| |
Collapse
|
45
|
Taheri M, Mehrzad J, Afshari R, Saleh-Moghaddam M, Mahmudy Gharaie MH. Inorganic arsenic can be potent granulotoxin in mammalian neutrophils in vitro. J Immunotoxicol 2016; 13:686-93. [PMID: 27416995 DOI: 10.3109/1547691x.2016.1159625] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
An important outcome arising out of occupational/environmental exposure to arsenic (As) is immunotoxicity. To determine the impact of inorganic As on innate immune cells, effects of a low dose of NaAsO2 (i.e. 20 ng As/ml) on select parameters associated with human and bovine neutrophils (PMN) were evaluated in vitro. PMN isolated from the blood of healthy individuals and cows (n = 8/treatment) were pre-incubated with NaAsO2 for 12 h before effects on PMN phagocytosis, transcription of TLR2, TLR4 and CD64 in human PMN - as well as on phagocytosis-dependent/-independent cell chemiluminescence (CL), phagocytosis and killing of Staphylococcus aureus and Escherichia coli, PMN H2O2 production and necrosis and TLR4 transcription in bovine PMN - were assessed. Relative to control (no As) PMN, treatment with As significantly decreased phagocytic capacity and CD64 mRNA, but increased TLR2 and TLR4 mRNA, in human PMN. In bovine PMN, while As also led to increased TLR4 mRNA abundance, it resulted in decreases in phagocytosis-dependent and -independent CL, PMN H2O2 production, PMN phagocytosis and killing of both E. coli and S. aureus by PMN. Considering the broad roles of PMN in immunology, the results of these studies increase our understanding of functional consequences of As exposure in inducing immunotoxicity and increasing susceptibility to (infectious) diseases in mammals.
Collapse
Affiliation(s)
- Masumeh Taheri
- a Biochemistry Section, Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
| | - Jalil Mehrzad
- b Department of Pathobiology , Immunology and Biotechnology Sections, Institute of Biotechnology, Ferdowsi University of Mashhad , Mashhad , Iran
| | - Reza Afshari
- c Medical Toxicology Research Center, Mashhad University of Medical Sciences , Mashhad , Iran
| | - Massoud Saleh-Moghaddam
- a Biochemistry Section, Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
| | | |
Collapse
|
46
|
Al Taleb Z, Petry A, Chi TF, Mennerich D, Görlach A, Dimova EY, Kietzmann T. Differential transcriptional regulation of hypoxia-inducible factor-1α by arsenite under normoxia and hypoxia: involvement of Nrf2. J Mol Med (Berl) 2016; 94:1153-1166. [PMID: 27286880 PMCID: PMC5052318 DOI: 10.1007/s00109-016-1439-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/31/2016] [Accepted: 06/03/2016] [Indexed: 12/19/2022]
Abstract
Abstract Arsenite (As(III)) is widely distributed in nature and can be found in water, food, and air. There is significant evidence that exposure to As(III) is associated with human cancers originated from liver, lung, skin, bladder, kidney, and prostate. Hypoxia plays a role in tumor growth and aggressiveness; adaptation to it is, at least to a large extent, mediated by hypoxia-inducible factor-1α (HIF-1α). In the current study, we investigated As(III) effects on HIF-1α under normoxia and hypoxia in the hepatoma cell line HepG2. We found that As(III) increased HIF-1α protein levels under normoxia while the hypoxia-mediated induction of HIF1α was reduced. Thereby, the As(III) effects on HIF-1α were dependent on both, transcriptional regulation via the transcription factor Nrf2 mediated by NOX4, PI3K/Akt, and ERK1/2 as well as by modulation of HIF-1α protein stability. In line, the different effects of As(III) via participation of HIF-1α and Nrf2 were also seen in tube formation assays with endothelial cells where knockdown of Nrf2 and HIF-1α abolished As(III) effects. Overall, the present study shows that As(III) is a potent inducer of HIF-1α under normoxia but not under hypoxia which may explain, in part, its carcinogenic as well as anti-carcinogenic actions. Key message As(III) increased HIF-1α under normoxia but reduced its hypoxia-dependent induction. The As(III) effects on HIF-1α were dependent on ROS, NOX4, PI3K/Akt, and ERK1/2. The As(III) effects under normoxia involved transcriptional regulation via Nrf2. Knockdown of Nrf2 and HIF-1α abolished As(III) effects in tube formation assays. The data may partially explain As(III)’s carcinogenic and anti-carcinogenic actions.
Collapse
Affiliation(s)
- Zukaa Al Taleb
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Aapistie 7, FI-90220, Oulu, Finland
| | - Andreas Petry
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich, Technical University Munich, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Tabughang Franklin Chi
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Aapistie 7, FI-90220, Oulu, Finland
| | - Daniela Mennerich
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Aapistie 7, FI-90220, Oulu, Finland
| | - Agnes Görlach
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich, Technical University Munich, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Elitsa Y Dimova
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Aapistie 7, FI-90220, Oulu, Finland
| | - Thomas Kietzmann
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Aapistie 7, FI-90220, Oulu, Finland.
| |
Collapse
|
47
|
Lang M, Wang X, Wang H, Dong J, Lan C, Hao J, Huang C, Li X, Yu M, Yang Y, Yang S, Ren H. Arsenic trioxide plus PX-478 achieves effective treatment in pancreatic ductal adenocarcinoma. Cancer Lett 2016; 378:87-96. [PMID: 27212442 DOI: 10.1016/j.canlet.2016.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 05/12/2016] [Accepted: 05/17/2016] [Indexed: 02/06/2023]
Abstract
Arsenic trioxide (ATO) has been selected as a promising treatment not only in leukemia but also in solid tumors. Previous studies showed that the cytotoxicity of ATO mainly depends on the induction of reactive oxygen species. However, ATO has only achieved a modest effect in pancreatic ductal adenocarcinoma, suggesting that the existing radical scavenging proteins, such as hypoxia inducible factor-1, attenuate the effect. The goal of this study is to investigate the effect of combination treatment of ATO plus PX-478 (hypoxia-inducible factor-1 inhibitor) and its underlying mechanism. Here, we showed that PX-478 robustly strengthened the anti-growth and pro-apoptosis effect of ATO on Panc-1 and BxPC-3 pancreatic cancer cells in vitro. Meanwhile, in vivo mouse xenograft models also showed the synergistic effect of ATO plus PX-478 compared with any single agent. Further studies showed that the anti-tumor effect of ATO plus PX-478 was derived from the reactive oxygen species-induced apoptosis. We next confirmed that Hypoxia-inducible factor-1 cleared reactive oxygen species by its downstream target, forkhead box O transcription factors, and this effect may justify the strategy of ATO plus PX-478 in the treatment of pancreatic cancer.
Collapse
Affiliation(s)
- Mingxiao Lang
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xiuchao Wang
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Hongwei Wang
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jie Dong
- School of Public Health, Tianjin Medical University, Tianjin, China
| | - Chungen Lan
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jihui Hao
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Chongbiao Huang
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xin Li
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ming Yu
- School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yanhui Yang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Shengyu Yang
- Department of Tumor Biology and Comprehensive Melanoma Research Center, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - He Ren
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.
| |
Collapse
|
48
|
Mishur RJ, Khan M, Munkácsy E, Sharma L, Bokov A, Beam H, Radetskaya O, Borror M, Lane R, Bai Y, Rea SL. Mitochondrial metabolites extend lifespan. Aging Cell 2016; 15:336-48. [PMID: 26729005 PMCID: PMC4783347 DOI: 10.1111/acel.12439] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2015] [Indexed: 12/26/2022] Open
Abstract
Disruption of mitochondrial respiration in the nematode Caenorhabditis elegans can extend lifespan. We previously showed that long-lived respiratory mutants generate elevated amounts of α-ketoacids. These compounds are structurally related to α-ketoglutarate, suggesting they may be biologically relevant. Here, we show that provision of several such metabolites to wild-type worms is sufficient to extend their life. At least one mode of action is through stabilization of hypoxia-inducible factor-1 (HIF-1). We also find that an α-ketoglutarate mimetic, 2,4-pyridinedicarboxylic acid (2,4-PDA), is alone sufficient to increase the lifespan of wild-type worms and this effect is blocked by removal of HIF-1. HIF-1 is constitutively active in isp-1(qm150) Mit mutants, and accordingly, 2,4-PDA does not further increase their lifespan. Incubation of mouse 3T3-L1 fibroblasts with life-prolonging α-ketoacids also results in HIF-1α stabilization. We propose that metabolites that build up following mitochondrial respiratory dysfunction form a novel mode of cell signaling that acts to regulate lifespan.
Collapse
Affiliation(s)
- Robert J. Mishur
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
- Department of PhysiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Maruf Khan
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
- Department of PhysiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Erin Munkácsy
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
- Department of Cellular & Structural BiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Lokendra Sharma
- Department of Cellular & Structural BiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
- Biotechnology ProgrammeCenter for Biological SciencesCentral University of South BiharPatna800014India
| | - Alex Bokov
- Department of Epidemiology and BiostatisticsUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Haley Beam
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Oxana Radetskaya
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Megan Borror
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Rebecca Lane
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Yidong Bai
- Department of Cellular & Structural BiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| | - Shane L. Rea
- The Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
- Department of PhysiologyUniversity of Texas Health Science Center at San AntonioSan AntonioTX78229USA
| |
Collapse
|
49
|
Oxidative Dimerization of PHD2 is Responsible for its Inactivation and Contributes to Metabolic Reprogramming via HIF-1α Activation. Sci Rep 2016; 6:18928. [PMID: 26740011 PMCID: PMC4703963 DOI: 10.1038/srep18928] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 11/30/2015] [Indexed: 12/20/2022] Open
Abstract
Prolyl hydroxylase domain protein 2 (PHD2) belongs to an evolutionarily conserved superfamily of 2-oxoglutarate and Fe(II)-dependent dioxygenases that mediates homeostatic responses to oxygen deprivation by mediating hypoxia-inducible factor-1α (HIF-1α) hydroxylation and degradation. Although oxidative stress contributes to the inactivation of PHD2, the precise molecular mechanism of PHD2 inactivation independent of the levels of co-factors is not understood. Here, we identified disulfide bond-mediated PHD2 homo-dimer formation in response to oxidative stress caused by oxidizing agents and oncogenic H-rasV12 signalling. Cysteine residues in the double-stranded β-helix fold that constitutes the catalytic site of PHD isoforms appeared responsible for the oxidative dimerization. Furthermore, we demonstrated that disulfide bond-mediated PHD2 dimerization is associated with the stabilization and activation of HIF-1α under oxidative stress. Oncogenic H-rasV12 signalling facilitates the accumulation of HIF-1α in the nucleus and promotes aerobic glycolysis and lactate production. Moreover, oncogenic H-rasV12 does not trigger aerobic glycolysis in antioxidant-treated or PHD2 knocked-down cells, suggesting the participation of the ROS-mediated PHD2 inactivation in the oncogenic H-rasV12-mediated metabolic reprogramming. We provide here a better understanding of the mechanism by which disulfide bond-mediated PHD2 dimerization and inactivation result in the activation of HIF-1α and aerobic glycolysis in response to oxidative stress.
Collapse
|
50
|
Cross Talk between Proliferative, Angiogenic, and Cellular Mechanisms Orchestred by HIF-1α in Psoriasis. Mediators Inflamm 2015; 2015:607363. [PMID: 26136626 PMCID: PMC4475568 DOI: 10.1155/2015/607363] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/21/2015] [Indexed: 02/08/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease where the altered regulation in angiogenesis, inflammation, and proliferation of keratinocytes are the possible causes of the disease, and the transcription factor “hypoxia-inducible factor 1-alpha” (HIF-1α) is involved in the homeostasis of these three biological phenomena. In this review, the role of HIF-1α in the cross talk between the cytokines and cells of the immunological system involved in the pathogenesis of psoriasis is discussed.
Collapse
|