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Zhu M, Li H, Zheng Y, Yang J. Targeting TOP2B as a vulnerability in aging and aging-related diseases. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167044. [PMID: 38296114 DOI: 10.1016/j.bbadis.2024.167044] [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: 10/05/2023] [Revised: 12/17/2023] [Accepted: 01/25/2024] [Indexed: 02/04/2024]
Abstract
The ongoing trend of rapid aging of the global population has unavoidably resulted in an increase in aging-related diseases. There is an immense amount of interest in the scientific community for the identification of molecular targets that may effectively mitigate the process of aging and aging-related diseases. The enzyme Topoisomerase IIβ (TOP2B) plays a crucial role in resolving the topological challenges that occur during DNA-related processes. It is believed that the disruption of TOP2B function contributes to the aging of cells and tissues, as well as the development of age-related diseases. Consequently, targeting TOP2B appears to be a promising approach for interventions aimed at mitigating the effects of aging. This review focuses on recent advancements in the understanding of the role of TOP2B in the processing of aging and aging-related disorders, thus providing a novel avenue for the development of anti-aging strategies.
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Affiliation(s)
- Man Zhu
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Hao Li
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, USA.
| | - Yi Zheng
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
| | - Jing Yang
- Laboratory of Aging Research, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
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2
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Yeh YH, Tsai CC, Chen TW, Lee CH, Chang WJ, Hsieh MY, Li TK. Activation of multiple proteolysis systems contributes to acute cadmium cytotoxicity. Mol Cell Biochem 2022; 477:927-937. [PMID: 35088369 DOI: 10.1007/s11010-021-04298-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 11/04/2021] [Indexed: 11/29/2022]
Abstract
Cadmium exhibits both toxic and carcinogenic effects, and its cytotoxicity is linked to various cellular pathways, such as oxidative stress, ubiquitin-proteasome, and p53-mediated response pathways. The molecular mechanism(s) underlying cadmium cytotoxicity appears to be complex, but remains largely unclear. Here, we examined the effects of cadmium on the protein catabolism using two surrogate markers, DNA topoisomerases I and II alpha and its contribution to cytotoxicity. We have found that cadmium exposure induced time- and concentration-dependent decreases in the protein level of surrogate markers and therefore suggest that cadmium may be involved in proteolysis system activation. A pharmacological study further revealed the novel role(s) of these proteolytic activities and reactive oxygen species (ROS) in the cadmium-induced acute toxicity: (i) Proteasome inhibition only partially relieved the cadmium-induced proteolysis of topoisomerases; (ii) Moreover, we report for the first time that the activation of metalloproteases, serine proteases, and cysteine proteases contributes to the acute cadmium cytotoxicity; (iii) Consistent with the notion that both ROS generation and proteolysis system activation contribute to the cadmium-induced proteolysis and cytotoxicity, the scavenger N-acetylcysteine and aforementioned protease inhibition not only reduced the cadmium-induced topoisomerase degradation but also alleviated the cadmium-induced cell killing. Taken together, acute cadmium exposure may activate multiple proteolytic systems and ROS formation, subsequently leading to intracellular damage and cytotoxicity. Thus, our results provide a novel insight into potential action mechanism(s) by which cadmium exerts its cytotoxic effect and suggest potential strategies to prevent cadmium-associated acute toxicity.
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Affiliation(s)
- Yen-Hsiu Yeh
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan
| | - Chia-Chih Tsai
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan
| | - Tien-Wen Chen
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan
| | - Chieh-Hua Lee
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan
| | - Wei-Jer Chang
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan
| | - Mei-Yi Hsieh
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan
| | - Tsai-Kun Li
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Room 709, No. 1, Section 1, Jen-Ai Road, Taipei, 10051, Taiwan. .,Centers for Genomic and Precision Medicine, National Taiwan University, Taipei, 10051, Taiwan. .,Center for Biotechnology, National Taiwan University, Taipei, 10051, Taiwan.
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Liu K, Han S, Gao W, Tang Y, Han X, Liu Z, Bao L, Zhi M, Wang H, Wang Y, Du H. Changes of Mineralogical Properties and Biological Activities of Gypsum and Its Calcined Products with Different Phase Structures. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:6676797. [PMID: 33777161 PMCID: PMC7969087 DOI: 10.1155/2021/6676797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/11/2021] [Accepted: 02/24/2021] [Indexed: 12/25/2022]
Abstract
Raw gypsum (RG) and calcined gypsum (CG) are widely used in traditional Chinese medicine (TCM). RG is usually taken orally to resolve heat and diminish inflammation, while CG is only used externally to treat ulcerations and empyrosis. Calcination at different temperatures, three phase CG structures, namely, bassanite, anhydrite III, and anhydrite II, may be generated. We herein investigated the relationship between the phase structure and the efficacy of CG and the optimum phase structure for CG. RG has a compact structure, small pore size, weak anti-inflammatory effect, but no antibacterial effect, and has almost no effect on the repair of scalds. CG150 (bassanite) has a loose texture, large pore size and specific surface area, and certain antibacterial and anti-inflammatory effects, but it has a poor repair effect on scalds. CG750 (anhydrite II) has a compact structure, small pore size and specific surface area, and low antibacterial and anti-inflammatory effects, but it has a certain repair effect on scalds. Only CG350 (anhydrite III) has good performance in texture, pore size, specific surface area, antibacterial, anti-inflammatory, and scald repair. Our research has proved that the mineral properties and biological activities of CG are different due to different phase structures. CG350, namely, anhydrite III, is considered by our research to be the optimal phase structure as CG.
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Affiliation(s)
- Kaiyang Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Shu Han
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ya'nan Tang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xitao Han
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ziqin Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Liyuan Bao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Meiru Zhi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Hongyue Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yingli Wang
- Shanxi University of Chinese Medicine, Jinzhong, Shanxi 030619, China
| | - Hong Du
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
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Liao D, Chen Y, Guo Y, Wang C, Liu N, Gong Q, Fu Y, Fu Y, Cao L, Yao D, Jiang P. Salvianolic Acid B Improves Chronic Mild Stress-Induced Depressive Behaviors in Rats: Involvement of AMPK/SIRT1 Signaling Pathway. J Inflamm Res 2020; 13:195-206. [PMID: 32494183 PMCID: PMC7231775 DOI: 10.2147/jir.s249363] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/18/2020] [Indexed: 12/27/2022] Open
Abstract
Introduction Depression is one of the most common neuropsychiatric illnesses which leads to a huge social and economic burden on modern society. So, it is necessary to develop an effective and safe pharmacological intervention for depression. Accumulating evidence has shown that adenosine monophosphate-activated protein kinase/sirtuin 1 (AMPK/SIRT1) signaling pathway plays a pivotal role in the development of depression. Our present study aimed to investigate the antidepressant effect and possible mechanisms of salvianolic acid B (SalB) in a chronic mild stress (CMS)-induced depression model in rats. Materials and Methods The rats were randomly divided into three groups: control group with no stressor, CMS group and CMS+SalB (30 mg/kg/d) group. After administration for 28 consecutive days, the behavior tests were performed. The rats were sacrificed after behavior tests, and the brain tissues were collected for biochemical analysis. Results It was observed that the administration of SalB for 28 consecutive days successfully corrected the depressive-like behaviors in CMS-treated rats. SalB could effectively reduce the gene expression of pro-inflammatory cytokines such as interleukin-6 (IL-6), interleukin-1β (IL-1β) and tumor necrosis factor α (TNF-α), as well as nuclear factor-kappa B (NF-κB) p65 protein. In addition, inhibitor of NF-κB (IκB) protein expression was significantly increased after the administration of SalB. Moreover, SalB could effectively decrease protein expression of oxidative stress markers such as 4-hydroxynonenal (4-HNE) and malondialdehyde (MDA) and increase the activity of catalase (CAT). SalB treatment also reversed CMS-induced inhibition of Nrf2 signaling pathway, along with increasing the mRNA expression of NAD(P)H:quinone oxidoreductase (NQO-1) and heme oxygenase 1 (HO-1). Regarding the endoplasmic reticulum (ER) stress markers, the protein expressions of C/EBP-homologous protein (CHOP) and glucose-regulated protein 78 kD (GRP78) were also significantly reduced after SalB administration. Furthermore, the supplementation of SalB could effectively activate the AMPK/SIRT1 signaling pathway, which indicated significant increase in pAMPK/AMPK ratio and SIRT1 protein expression. Conclusion Our study demonstrated that SalB relieved CMS-induced depressive-like state through the mitigation of inflammatory status, oxidative stress, and the activation of AMPK/SIRT1 signaling pathway.
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Affiliation(s)
- Dehua Liao
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China.,Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410013, People's Republic of China
| | - Yun Chen
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Yujin Guo
- Institute of Clinical Pharmacy & Pharmacology, Jining First People's Hospital, Jining, Shandong 272000, People's Republic of China
| | - Changshui Wang
- Department of Clinical Translational Medicine, Jining Life Science Center, Jining, Shandong 272000, People's Republic of China
| | - Ni Liu
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Qian Gong
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Yingzhou Fu
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Yilan Fu
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Lizhi Cao
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Dunwu Yao
- Department of Pharmacy, Hunan Cancer Hospital, Changsha, Hunan 410013, People's Republic of China
| | - Pei Jiang
- Institute of Clinical Pharmacy & Pharmacology, Jining First People's Hospital, Jining, Shandong 272000, People's Republic of China
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Atkin ND, Raimer HM, Wang YH. Broken by the Cut: A Journey into the Role of Topoisomerase II in DNA Fragility. Genes (Basel) 2019; 10:E791. [PMID: 31614754 PMCID: PMC6826763 DOI: 10.3390/genes10100791] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/05/2019] [Accepted: 10/10/2019] [Indexed: 02/07/2023] Open
Abstract
DNA topoisomerase II (TOP2) plays a critical role in many processes such as replication and transcription, where it resolves DNA structures and relieves torsional stress. Recent evidence demonstrated the association of TOP2 with topologically associated domains (TAD) boundaries and CCCTC-binding factor (CTCF) binding sites. At these sites, TOP2 promotes interactions between enhancers and gene promoters, and relieves torsional stress that accumulates at these physical barriers. Interestingly, in executing its enzymatic function, TOP2 contributes to DNA fragility through re-ligation failure, which results in persistent DNA breaks when unrepaired or illegitimately repaired. Here, we discuss the biological processes for which TOP2 is required and the steps at which it can introduce DNA breaks. We describe the repair processes that follow removal of TOP2 adducts and the resultant broken DNA ends, and present how these processes can contribute to disease-associated mutations. Furthermore, we examine the involvement of TOP2-induced breaks in the formation of oncogenic translocations of leukemia and papillary thyroid cancer, as well as the role of TOP2 and proteins which repair TOP2 adducts in other diseases. The participation of TOP2 in generating persistent DNA breaks and leading to diseases such as cancer, could have an impact on disease treatment and prevention.
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Affiliation(s)
- Naomi D Atkin
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
| | - Heather M Raimer
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Yuh-Hwa Wang
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
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The Role of Metabolic Flexibility in the Regulation of the DNA Damage Response by Nitric Oxide. Mol Cell Biol 2019; 39:MCB.00153-19. [PMID: 31235477 DOI: 10.1128/mcb.00153-19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 06/18/2019] [Indexed: 12/24/2022] Open
Abstract
In this report, we show that nitric oxide suppresses DNA damage response (DDR) signaling in the pancreatic β-cell line INS 832/13 and rat islets by inhibiting intermediary metabolism. Nitric oxide is known to inhibit complex IV of the electron transport chain and aconitase of the Krebs cycle. Non-β cells compensate by increasing glycolytic metabolism to maintain ATP levels; however, β cells lack this metabolic flexibility, resulting in a nitric oxide-dependent decrease in ATP and NAD+ Like nitric oxide, mitochondrial toxins inhibit DDR signaling in β cells by a mechanism that is associated with a decrease in ATP. Non-β cells compensate for the effects of mitochondrial toxins with an adaptive shift to glycolytic ATP generation that allows for DDR signaling. Forcing non-β cells to derive ATP via mitochondrial respiration (replacing glucose with galactose in the medium) and glucose deprivation sensitizes these cells to nitric oxide-mediated inhibition of DDR signaling. These findings indicate that metabolic flexibility is necessary to maintain DDR signaling under conditions in which mitochondrial oxidative metabolism is inhibited and support the inhibition of oxidative metabolism (decreased ATP) as one protective mechanism by which nitric oxide attenuates DDR-dependent β-cell apoptosis.
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Jia YN, Peng YL, Zhao YP, Cheng XF, Zhou Y, Chai CL, Zeng LS, Pan MH, Xu L. Comparison of the Hepatoprotective Effects of the Three Main Stilbenes from Mulberry Twigs. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5521-5529. [PMID: 31012578 DOI: 10.1021/acs.jafc.8b07245] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The purpose of this study was to compare the hepatoprotective effects of Oxy (oxyresveratrol), Res (resveratrol), and MulA (mulberroside A) (80 mg/kg body weight/d, i.g.) on acute liver injury (ALI) induced by lipopolysaccharide (LPS)/d-galactosamine (d-GalN) in mice. After 7 h of LPS (50 μg/kg body weight, i.p.) and d-GalN (500 mg/kg body weight, i.p.) exposure, the activities of serum transaminases and antioxidant enzymes were determined. The expressions of the Kelch-like ECH-associated protein 1 (Keap1)-nuclear factor erythroid 2-related factor 2 (Nrf2) signal pathway, the nuclear factor-kappa B (NF-κB) signal pathway, and the mitogen-activated protein kinase (MAPK) signal pathway related proteins were evaluated by Western blot assays. Histopathological analysis was performed by hematoxylin-eosin (H&E) staining on the separated livers of mice. The results showed that treatment with Oxy, Res, and MulA could significantly decreases the levels of alanine transaminase (ALT) and aspartate transaminase (AST) ( P < 0.01). MulA was the most effective ingredient among the three, and the ALT and AST levels were reduced at 90.3 ± 1.3% and 93.9 ± 1.1% compared with the LPS/D-GalN treated group ( P < 0.01). Meanwhile, the stilbenes curbed the expression of inflammatory factors, NF-κB pathway activation, and MAPKs phosphorylation and upregulated antioxidant enzymes, Nrf2, NAD (P) H:quinone oxidoreductase (NQO1), and heme oxygenase-1 (HO-1) expression levels. Stilbenes might protect the ALI caused by LPS/d-GalN through inhibiting the negative effectiveness of oxidation stress and inflammation. The protective performance of MulA was better than those of Oxy and Res, and we hypothesize that it might be due to the mediation of the specific metabolic pathway of the MulA in vivo. All of these results implied that stilbenes in mulberry twigs might be promising as natural additives.
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Affiliation(s)
- Ya-Nan Jia
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
| | - Ya-Lin Peng
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
| | - Yi-Ping Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
| | - Xi-Fei Cheng
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
| | - You Zhou
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
| | - Chun-Li Chai
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
| | - Ling-Shu Zeng
- Chongqing Sericulture Science and Technology Research Institute , No. 1 Shangba Road, Dongyang Street , Beibei District, Chongqing 400700 , China
| | - Min-Hui Pan
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
| | - Li Xu
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology , Southwest University , Chongqing 400715 , China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University , Chongqing 400715 , China
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Oleson BJ, Corbett JA. Dual Role of Nitric Oxide in Regulating the Response of β Cells to DNA Damage. Antioxid Redox Signal 2018; 29:1432-1445. [PMID: 28978225 PMCID: PMC6166691 DOI: 10.1089/ars.2017.7351] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 09/09/2017] [Indexed: 01/09/2023]
Abstract
SIGNIFICANCE Cytokines released in and around pancreatic islets during islet inflammation are believed to contribute to impaired β cell function and β cell death during the development of diabetes. Nitric oxide, produced by β cells in response to cytokine exposure, controls many of the responses of β cells during islet inflammation. Recent Advances: Although nitric oxide has been shown to inhibit insulin secretion and oxidative metabolism and induce DNA damage in β cells, it also activates protective pathways that promote recovery of insulin secretion and oxidative metabolism and repair of damaged DNA. Recent studies have identified a novel role for nitric oxide in selectively regulating the DNA damage response in β cells. CRITICAL ISSUES Does nitric oxide mediate cytokine-induced β cell damage, or is nitric oxide produced by β cells in response to cytokines to protect β cells from damage? FUTURE DIRECTIONS β cells appear to be the only islet endocrine cell type capable of responding to proinflammatory cytokines with the production of nitric oxide, and these terminally differentiated cells have a limited capacity to regenerate. It is likely that there is a physiological purpose for this response, and understanding this could open new areas of study regarding the loss of functional β cell mass during diabetes development.
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Affiliation(s)
- Bryndon J. Oleson
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - John A. Corbett
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin
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Beel S, Herdewyn S, Fazal R, De Decker M, Moisse M, Robberecht W, Van Den Bosch L, Van Damme P. Progranulin reduces insoluble TDP-43 levels, slows down axonal degeneration and prolongs survival in mutant TDP-43 mice. Mol Neurodegener 2018; 13:55. [PMID: 30326935 PMCID: PMC6192075 DOI: 10.1186/s13024-018-0288-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 10/03/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND TAR DNA binding protein 43 (TDP-43) is the main disease protein in most patients with amyotrophic lateral sclerosis (ALS) and about 50% of patients with frontotemporal dementia (FTD). TDP-43 pathology is not restricted to patients with missense mutations in TARDBP, the gene encoding TDP-43, but also occurs in ALS/FTD patients without known genetic cause or in patients with various other ALS/FTD gene mutations. Mutations in progranulin (GRN), which result in a reduction of ~ 50% of progranulin protein (PGRN) levels, cause FTD with TDP-43 pathology. How loss of PGRN leads to TDP-43 pathology and whether or not PGRN expression protects against TDP-43-induced neurodegeneration is not yet clear. METHODS We studied the effect of PGRN on the neurodegenerative phenotype in TDP-43(A315T) mice. RESULTS PGRN reduced the levels of insoluble TDP-43 and histology of the spinal cord revealed a protective effect of PGRN on the loss of large axon fibers in the lateral horn, the most severely affected fiber pool in this mouse model. Overexpression of PGRN significantly slowed down disease progression, extending the median survival by approximately 130 days. A transcriptome analysis did not point towards a single pathway affected by PGRN, but rather towards a pleiotropic effect on different pathways. CONCLUSION Our findings reveal an important role of PGRN in attenuating mutant TDP-43-induced neurodegeneration.
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Affiliation(s)
- Sander Beel
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Sarah Herdewyn
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Raheem Fazal
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Mathias De Decker
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Matthieu Moisse
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Wim Robberecht
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,Department of Neurology, University Hospital Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Ludo Van Den Bosch
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium.,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium
| | - Philip Van Damme
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven - University of Leuven, Leuven, Belgium. .,VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, Leuven, Belgium. .,Department of Neurology, University Hospital Leuven, Herestraat 49, 3000, Leuven, Belgium.
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10
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Yeh YH, Hsiao HF, Yeh YC, Chen TW, Li TK. Inflammatory interferon activates HIF-1α-mediated epithelial-to-mesenchymal transition via PI3K/AKT/mTOR pathway. J Exp Clin Cancer Res 2018; 37:70. [PMID: 29587825 PMCID: PMC5870508 DOI: 10.1186/s13046-018-0730-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 03/09/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Tumor microenvironments (TMEs) activate various axes/pathways, predominantly inflammatory and hypoxic responses, impact tumorigenesis, metastasis and therapeutic resistance significantly. Although molecular pathways of individual TME are extensively studied, evidence showing interaction and crosstalk between hypoxia and inflammation remain unclear. Thus, we examined whether interferon (IFN) could modulate both inflammatory and hypoxic responses under normoxia and its relation with cancer development. METHODS IFN was used to induce inflammation response and HIF-1α expression in various cancer cell lines. Corresponding signaling pathways were then analyzed by a combination of pharmacological inhibitors, immunoblotting, GST-Raf pull-down assays, dominant-negative and short-hairpin RNA-mediated knockdown approaches. Specifically, roles of functional HIF-1α in the IFN-induced epithelial-mesenchymal transition (EMT) and other tumorigenic propensities were examined by knockdown, pharmacological inhibition, luciferase reporter, clonogenic, anchorage-independent growth, wound-healing, vasculogenic mimicry, invasion and sphere-formation assays as well as cellular morphology observation. RESULTS We showed for the first time that IFN induced functional HIF-1α expression in a time- and dose- dependent manner in various cancer cell lines under both hypoxic and normoxic conditions, and then leading to an activated HIF-1α pathway in an IFN-mediated pro-inflammatory TME. IFN regulates anti-apoptosis activity, cellular metastasis, EMT and vasculogenic mimicry by a novel mechanism through mainly the activation of PI3K/AKT/mTOR axis. Subsequently, pharmacological and genetic modulations of HIF-1α, JAK, PI3K/AKT/mTOR or p38 pathways efficiently abrogate above IFN-induced tumorigenic propensities. Moreover, HIF-1α is required for the IFN-induced invasiveness, tumorigenesis and vasculogenic mimicry. Further supports for the HIF-1α-dependent tumorigenesis were obtained from results of xenograft mouse model and sphere-formation assay. CONCLUSIONS Our mechanistic study showed an induction of HIF-1α and EMT ability in an IFN-mediated inflammatory TME and thus demonstrating a novel interaction between inflammatory and hypoxic TMEs. Moreover, targeting HIF-1α may be a potential target for inhibiting tumor tumorigenesis and EMT by decreasing cancer cells wound healing and anchorage-independent colony growth. Our results also lead to rationale guidance for developing new therapeutic strategies to prevent relapse via targeting TME-providing IFN signaling and HIF-1α programming.
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Affiliation(s)
- Yen-Hsiu Yeh
- Department and Graduate Institute of Microbiology, College of Medicine, Taipei, Taiwan, Republic of China
| | - Ho-Fu Hsiao
- Department of Emergency Medicine, Sijhih Cathay General Hospital, New Taipei City, Taiwan, Republic of China
| | - Yen-Cheng Yeh
- Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan, Republic of China
| | - Tien-Wen Chen
- Department and Graduate Institute of Microbiology, College of Medicine, Taipei, Taiwan, Republic of China
| | - Tsai-Kun Li
- Department and Graduate Institute of Microbiology, College of Medicine, Taipei, Taiwan, Republic of China.
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan, Republic of China.
- Center for Genomic Medicine, National Taiwan University, Taipei, Taiwan, Republic of China.
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Velagapudi R, Kumar A, Bhatia HS, El-Bakoush A, Lepiarz I, Fiebich BL, Olajide OA. Inhibition of neuroinflammation by thymoquinone requires activation of Nrf2/ARE signalling. Int Immunopharmacol 2017; 48:17-29. [DOI: 10.1016/j.intimp.2017.04.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 04/11/2017] [Accepted: 04/16/2017] [Indexed: 12/27/2022]
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Velagapudi R, El-Bakoush A, Lepiarz I, Ogunrinade F, Olajide OA. AMPK and SIRT1 activation contribute to inhibition of neuroinflammation by thymoquinone in BV2 microglia. Mol Cell Biochem 2017; 435:149-162. [PMID: 28551846 PMCID: PMC5632349 DOI: 10.1007/s11010-017-3064-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 05/05/2017] [Indexed: 12/26/2022]
Abstract
Thymoquinone is a known inhibitor of neuroinflammation. However, the mechanism(s) involved in its action remain largely unknown. In this study, we investigated the roles of cellular reactive oxygen species (ROS), 5' AMP-activated protein kinase (AMPK) and sirtuin 1 (SIRT1) in the anti-neuroinflammatory activity of thymoquinone. We investigated effects of the compound on ROS generation in LPS-activated microglia using the fluorescent 2',7'-dichlorofluorescin diacetate (DCFDA)-cellular ROS detection. Immunoblotting was used to detect protein levels of p40phox, gp91phox, AMPK, LKB1 and SIRT1. Additionally, ELISA and immunofluorescence were used to detect nuclear accumulation of SIRT1. NAD+/NADH assay was also performed. The roles of AMPK and SIRT1 in anti-inflammatory activity of thymoquinone were investigated using RNAi and pharmacological inhibition. Our results show that thymoquinone reduced cellular ROS generation, possibly through inhibition of p40phox and gp91phox protein. Treatment of BV2 microglia with thymoquinone also resulted in elevation in the levels of LKB1 and phospho-AMPK proteins. We further observed that thymoquinone reduced cytoplasmic levels and increased nuclear accumulation of SIRT1 protein and increased levels of NAD+. Results also show that the anti-inflammatory activity of thymoquinone was abolished when the expressions of AMPK and SIRT1 were suppressed by RNAi or pharmacological antagonists. Pharmacological antagonism of AMPK reversed thymoquinone-induced increase in SIRT1. Taken together, we propose that thymoquinone inhibits cellular ROS generation in LPS-activated BV2 microglia. It is also suggested that activation of both AMPK and NAD+/SIRT1 may contribute to the anti-inflammatory, but not antioxidant activity of the compound in BV2 microglia.
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Affiliation(s)
- Ravikanth Velagapudi
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK.,Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Abdelmeneim El-Bakoush
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK
| | - Izabela Lepiarz
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK
| | - Folashade Ogunrinade
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK
| | - Olumayokun A Olajide
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, West Yorkshire, HD1 3DH, UK.
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Oleson BJ, Broniowska KA, Naatz A, Hogg N, Tarakanova VL, Corbett JA. Nitric Oxide Suppresses β-Cell Apoptosis by Inhibiting the DNA Damage Response. Mol Cell Biol 2016; 36:2067-77. [PMID: 27185882 PMCID: PMC4946431 DOI: 10.1128/mcb.00262-16] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 05/12/2016] [Indexed: 12/15/2022] Open
Abstract
Nitric oxide, produced in pancreatic β cells in response to proinflammatory cytokines, plays a dual role in the regulation of β-cell fate. While nitric oxide induces cellular damage and impairs β-cell function, it also promotes β-cell survival through activation of protective pathways that promote β-cell recovery. In this study, we identify a novel mechanism in which nitric oxide prevents β-cell apoptosis by attenuating the DNA damage response (DDR). Nitric oxide suppresses activation of the DDR (as measured by γH2AX formation and the phosphorylation of KAP1 and p53) in response to multiple genotoxic agents, including camptothecin, H2O2, and nitric oxide itself, despite the presence of DNA damage. While camptothecin and H2O2 both induce DDR activation, nitric oxide suppresses only camptothecin-induced apoptosis and not H2O2-induced necrosis. The ability of nitric oxide to suppress the DDR appears to be selective for pancreatic β cells, as nitric oxide fails to inhibit DDR signaling in macrophages, hepatocytes, and fibroblasts, three additional cell types examined. While originally described as the damaging agent responsible for cytokine-induced β-cell death, these studies identify a novel role for nitric oxide as a protective molecule that promotes β-cell survival by suppressing DDR signaling and attenuating DNA damage-induced apoptosis.
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Affiliation(s)
- Bryndon J Oleson
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | | | - Aaron Naatz
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Neil Hogg
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Vera L Tarakanova
- Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - John A Corbett
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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Chiou YS, Huang Q, Ho CT, Wang YJ, Pan MH. Directly interact with Keap1 and LPS is involved in the anti-inflammatory mechanisms of (-)-epicatechin-3-gallate in LPS-induced macrophages and endotoxemia. Free Radic Biol Med 2016; 94:1-16. [PMID: 26878775 DOI: 10.1016/j.freeradbiomed.2016.02.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/24/2016] [Accepted: 02/10/2016] [Indexed: 12/30/2022]
Abstract
Disruption of the Kelch-like ECH-associated protein 1 (Keap1)-Nuclear factor erythroid-derived factor 2-related factor 2 (Nrf2) interaction has emerged as a promising strategy to reduce oxidative stress-induced inflammation. However, its roles in regulating downstream events, including the cross talk between Nrf2 and nuclear factor-kappa B (NF-κB), are not well defined. The objective of this study was to elucidate the mechanistic connection between Keap1-Nrf2 signaling and the transcription factor NF-κB and to investigate the function of (-)-epicatechin-3-gallate (ECG) in the repression of multiple inflammatory mediators. ECG attenuated lipopolysaccharide (LPS)-induced inflammatory mediator expression and intracellular reactive oxygen species (ROS) generation through the induction of Nrf2/antioxidant response element (ARE)-driven glutathione (GSH) and hemeoxygenase-1 (HO-1) levels, interference with NF-κB and Nfr2/ARE transcriptional activities, and suppression of the MAPKs (JNK1/2 and p38) and PI3K/Akt signaling pathways. Importantly, anti-inflammatory effects of ECG partly require activation of ERK1/2 signaling to mediate HO-1 expression and Nrf2/ARE signaling activation. Furthermore, ECG may directly interact intracellularly with the Kelch repeat domains of Keap1 and bind to extracellular LPS, thereby promoting the nuclear accumulation of the Nrf2 protein and blockading the activation of LPS-induced downstream target signaling pathways. Consistent with in vitro studies, ECG attenuates pathological syndromes of LPS-induced sepsis and systemic inflammation. Our results identified ECG as a novel Keap1-Nrf2 interaction disruptor and LPS-induced TLR4 activation inhibitor, thereby providing an innovative strategy to prevent or treat immune, oxidative stress and inflammatory-related diseases.
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Affiliation(s)
- Yi-Shiou Chiou
- Department of Environmental and Occupational Health, National Cheng Kung University Medical College, Tainan 704, Taiwan; Institute of Food Science and Technology, National Taiwan University, No.1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Qingrong Huang
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901-8520, USA
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ 08901-8520, USA
| | - Ying-Jan Wang
- Department of Environmental and Occupational Health, National Cheng Kung University Medical College, Tainan 704, Taiwan; Department of Biomedical Informatics, Asia University, Taichung 413, Taiwan.
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, No.1, Section 4, Roosevelt Road, Taipei 10617, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung 413, Taiwan.
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15
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Hwang JH, Kim KJ, Ryu SJ, Lee BY. Caffeine prevents LPS-induced inflammatory responses in RAW264.7 cells and zebrafish. Chem Biol Interact 2016; 248:1-7. [DOI: 10.1016/j.cbi.2016.01.020] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 01/22/2016] [Accepted: 01/25/2016] [Indexed: 10/22/2022]
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16
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Oleson BJ, Broniowska KA, Schreiber KH, Tarakanova VL, Corbett JA. Nitric oxide induces ataxia telangiectasia mutated (ATM) protein-dependent γH2AX protein formation in pancreatic β cells. J Biol Chem 2014; 289:11454-11464. [PMID: 24610783 PMCID: PMC4036281 DOI: 10.1074/jbc.m113.531228] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 02/20/2014] [Indexed: 02/06/2023] Open
Abstract
In this study, the effects of cytokines on the activation of the DNA double strand break repair factors histone H2AX (H2AX) and ataxia telangiectasia mutated (ATM) were examined in pancreatic β cells. We show that cytokines stimulate H2AX phosphorylation (γH2AX formation) in rat islets and insulinoma cells in a nitric oxide- and ATM-dependent manner. In contrast to the well documented role of ATM in DNA repair, ATM does not appear to participate in the repair of nitric oxide-induced DNA damage. Instead, nitric oxide-induced γH2AX formation correlates temporally with the onset of irreversible DNA damage and the induction of apoptosis. Furthermore, inhibition of ATM attenuates cytokine-induced caspase activation. These findings show that the formation of DNA double strand breaks correlates with ATM activation, irreversible DNA damage, and ATM-dependent induction of apoptosis in cytokine-treated β cells.
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Affiliation(s)
- Bryndon J Oleson
- Department of Biochemistry and Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | | | - Katherine H Schreiber
- Edward A. Doisy Department of Biochemistry and Molecular Biology, St. Louis University School of Medicine, St. Louis, Missouri 63104
| | - Vera L Tarakanova
- Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin 53226 and
| | - John A Corbett
- Department of Biochemistry and Medical College of Wisconsin, Milwaukee, Wisconsin 53226.
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Hsieh MY, Fan JR, Chang HW, Chen HC, Shen TL, Teng SC, Yeh YH, Li TK. DNA topoisomerase III alpha regulates p53-mediated tumor suppression. Clin Cancer Res 2014; 20:1489-501. [PMID: 24526736 DOI: 10.1158/1078-0432.ccr-13-1997] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Human DNA topoisomerase III alpha (hTOP3α) is involved in DNA repair surveillance and cell-cycle checkpoints possibly through formatting complex with tumor suppressors. However, its role in cancer development remained unsolved. EXPERIMENTAL DESIGN Coimmunoprecipitation, sucrose gradient, chromatin immunoprecipitation (ChIP), real time PCR, and immunoblotting analyses were performed to determine interactions of hTOP3α with p53. Paired cell lines with different hTOP3α levels were generated via ectopic expression and short hairpin RNA (shRNA)-mediated knockdown approaches. Cellular tumorigenic properties were analyzed using cell counting, colony formation, senescence, soft agar assays, and mouse xenograft models. RESULTS The hTOP3α isozyme binds to p53 and cofractionizes with p53 in gradients differing from fractions containing hTOP3α and BLM. Knockdown of hTOP3α expression (sh-hTOP3α) caused a higher anchorage-independent growth of nontumorigenic RHEK-1 cells. Similarly, sh-hTOP3α and ectopic expression of hTOP3α in cancer cell lines caused increased and reduced tumorigenic abilities, respectively. Genetic and mutation experiments revealed that functional hTOP3α, p53, and p21 are required for this tumor-suppressive activity. Mechanism-wise, ChIP data revealed that hTOP3α binds to the p53 and p21 promoters and positively regulates their expression. Two proteins affect promoter recruitments of each other and collaborate in p21 expression. Moreover, sh-hTOP3α and sh-p53 in AGS cells caused a similar reduction in senescence and hTOP3α mRNA levels were lower in gastric and renal tumor samples. CONCLUSION We concluded that hTOP3α interacts with p53, regulates p53 and p21 expression, and contributes to the p53-mediated tumor suppression.
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Affiliation(s)
- Mei-Yi Hsieh
- Authors' Affiliations: Department and Graduate Institute of Microbiology, College of Medicine, Department of Plan Pathology and Microbiology, College of Bioresources and Agriculture, and Center for Biotechnology, National Taiwan University, Taipei, Taiwan
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Fayyaz S, Farooqi AA. miRNA and TMPRSS2-ERG do not mind their own business in prostate cancer cells. Immunogenetics 2013; 65:315-32. [DOI: 10.1007/s00251-012-0677-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Accepted: 12/25/2012] [Indexed: 12/19/2022]
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Tongkao-on W, Gordon-Thomson C, Dixon KM, Song EJ, Luu T, Carter SE, Sequeira VB, Reeve VE, Mason RS. Novel vitamin D compounds and skin cancer prevention. DERMATO-ENDOCRINOLOGY 2013; 5:20-33. [PMID: 24494039 PMCID: PMC3897591 DOI: 10.4161/derm.23939] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 02/09/2013] [Indexed: 01/10/2023]
Abstract
As skin cancer is one of the most costly health issues in many countries, particularly in Australia, the possibility that vitamin D compounds might contribute to prevention of this disease is becoming increasingly more attractive to researchers and health communities. In this article, important epidemiologic, mechanistic and experimental data supporting the chemopreventive potential of several vitamin D-related compounds are explored. Evidence of photoprotection by the active hormone, 1α,25dihydroxyvitamin D3, as well as a derivative of an over-irradiation product, lumisterol, a fluorinated analog and bufalin, a potential vitamin D-like compound, are provided. The aim of this article is to understand how vitamin D compounds contribute to UV adaptation and potentially, skin cancer prevention.
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Affiliation(s)
- Wannit Tongkao-on
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
| | - Clare Gordon-Thomson
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
| | - Katie M. Dixon
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
| | - Eric J. Song
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
| | - Tan Luu
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
| | - Sally E. Carter
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
| | - Vanessa B. Sequeira
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
- Oncology Research Unit; School of Medical Sciences; The University of New South Wales; Kensington, NSW Australia
| | - Vivienne E. Reeve
- Department of Faculty of Veterinary Science; The University of Sydney; Sydney, NSW Australia
| | - Rebecca S. Mason
- Department of Physiology Anatomy & Histology; Bosch Institute; The University of Sydney; Sydney, NSW Australia
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