1
|
Priyanka, Sharma S, Joshi H, Kumar C, Waseem R, Sharma M. Mycobacterium tuberculosis protein PPE15 (Rv1039c) possesses eukaryote-like SH3 domain that interferes with NADPH Oxidase assembly and Reactive Oxygen Species production. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119702. [PMID: 38408543 DOI: 10.1016/j.bbamcr.2024.119702] [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: 04/13/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
Inhibition of Reactive Oxygen Species (ROS) is one of the strategies that Mycobacterium tuberculosis (Mtb) employs as its defence mechanism. In this study, the role of PPE15 (Rv1039c), a late-stage protein, has been investigated in modulating the cellular ROS. We discovered PPE15 to be a secretory protein that downregulates ROS generation in THP1 macrophages. Our in-silico analysis revealed the presence of a eukaryote-like SH3 (SH3e) domain in PPE15. The predicted SH3e-domain of PPE15 was found to interact with cytosolic components of NADPH Oxidase (NOX), p67phox and p47phox through molecular docking. In-vitro experiments using THP1 macrophages showed a diminished NADP/NADPH ratio, indicating reduced NOX activity. We also observed increased levels of p67phox and p47phox in the cytoplasmic fraction of PPE15 treated macrophages as compared to the plasma membrane fraction. To understand the role of the SH3e-domain in ROS modulation, this domain was deleted from the full-length PPE15 (PPE15-/-SH3). We observed an increase in cellular ROS and NADP/NADPH ratio in response to PPE15-/-SH3 protein. The interaction of PPE15-/-SH3 with p67phox or p47phox was also reduced in the cytoplasm, indicating migration of NOX subunits to the plasma membrane. Additionally, M. smegmatis expressing PPE15 was observed to be resistant to oxidative stress with significant intracellular survival in THP1 macrophages as compared to M. smegmatis expressing PPE15-/-SH3. These observations suggest that the SH3e-domain of PPE15 interferes with ROS generation by sequestering NOX components that inhibit NOX assembly at the cell membrane. Therefore, PPE15 acts like a molecular mimic of SH3-domain carrying eukaryotic proteins that can be employed by Mtb at late stages of infection for its survival. These findings give us new insights about the pathogen evading strategy of Mtb which may help in improving the therapeutics for TB treatment.
Collapse
Affiliation(s)
- Priyanka
- DSKC BioDiscovery Laboratory and Department of Zoology, Miranda House, University of Delhi, Delhi, India.
| | - Sadhna Sharma
- DSKC BioDiscovery Laboratory and Department of Zoology, Miranda House, University of Delhi, Delhi, India.
| | - Hemant Joshi
- School of Biotechnology, Jawaharlal Nehru University, Delhi, India
| | - Chanchal Kumar
- Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Rashid Waseem
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Monika Sharma
- DSKC BioDiscovery Laboratory and Department of Zoology, Miranda House, University of Delhi, Delhi, India.
| |
Collapse
|
2
|
Palma FR, Gantner BN, Sakiyama MJ, Kayzuka C, Shukla S, Lacchini R, Cunniff B, Bonini MG. ROS production by mitochondria: function or dysfunction? Oncogene 2024; 43:295-303. [PMID: 38081963 DOI: 10.1038/s41388-023-02907-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/01/2023] [Accepted: 11/21/2023] [Indexed: 01/31/2024]
Abstract
In eukaryotic cells, ATP generation is generally viewed as the primary function of mitochondria under normoxic conditions. Reactive oxygen species (ROS), in contrast, are regarded as the by-products of respiration, and are widely associated with dysfunction and disease. Important signaling functions have been demonstrated for mitochondrial ROS in recent years. Still, their chemical reactivity and capacity to elicit oxidative damage have reinforced the idea that ROS are the products of dysfunctional mitochondria that accumulate during disease. Several studies support a different model, however, by showing that: (1) limited oxygen availability results in mitochondria prioritizing ROS production over ATP, (2) ROS is an essential adaptive mitochondrial signal triggered by various important stressors, and (3) while mitochondria-independent ATP production can be easily engaged by most cells, there is no known replacement for ROS-driven redox signaling. Based on these observations and other evidence reviewed here, we highlight the role of ROS production as a major mitochondrial function involved in cellular adaptation and stress resistance. As such, we propose a rekindled view of ROS production as a primary mitochondrial function as essential to life as ATP production itself.
Collapse
Affiliation(s)
- Flavio R Palma
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine and the Robert H. Lurie Comprehensive Cancer Center of Chicago, Northwestern University, Chicago, IL, USA
| | - Benjamin N Gantner
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Marcelo J Sakiyama
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine and the Robert H. Lurie Comprehensive Cancer Center of Chicago, Northwestern University, Chicago, IL, USA
| | - Cezar Kayzuka
- Department of Pharmacology, Ribeirao Preto College of Nursing, University of Sao Paulo, Sao Paulo, Brazil
| | - Sanjeev Shukla
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Riccardo Lacchini
- Department of Psychiatric Nursing and Human Sciences, Ribeirao Preto College of Nursing, University of Sao Paulo, Sao Paulo, Brazil
| | - Brian Cunniff
- Department of Pathology and Laboratory Medicine, Larner School of Medicine, University of Vermont, Burlington, VT, USA
| | - Marcelo G Bonini
- Department of Medicine, Division of Hematology Oncology, Feinberg School of Medicine and the Robert H. Lurie Comprehensive Cancer Center of Chicago, Northwestern University, Chicago, IL, USA.
| |
Collapse
|
3
|
Bernard JN, Chinnaiyan V, Almeda J, Catala-Valentin A, Andl CD. Lactobacillus sp. Facilitate the Repair of DNA Damage Caused by Bile-Induced Reactive Oxygen Species in Experimental Models of Gastroesophageal Reflux Disease. Antioxidants (Basel) 2023; 12:1314. [PMID: 37507854 PMCID: PMC10376144 DOI: 10.3390/antiox12071314] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Gastroesophageal reflux disease (GERD) leads to the accumulation of bile-induced reactive oxygen species and oxidative stress in esophageal tissues, causing inflammation and DNA damage. The progression sequence from healthy esophagus to GERD and eventually cancer is associated with a microbiome shift. Lactobacillus species are commensal organisms known for their probiotic and antioxidant characteristics in the healthy esophagus. This prompted us to investigate how Lactobacilli survive in a bile-rich environment during GERD, and to identify their interaction with the bile-injured esophageal cells. To model human reflux conditions, we exposed three Lactobacillus species (L. acidophilus, L. plantarum, and L. fermentum) to bile. All species were tolerant to bile possibly enabling them to colonize the esophageal epithelium under GERD conditions. Next, we assessed the antioxidant potential of Lactobacilli and role in bile injury repair: we measured bile-induced DNA damage using the ROS marker 8-oxo guanine and COMET assay. Lactobacillus addition after bile injury accelerated repair of bile-induced DNA damage through recruitment of pH2AX/RAD51 and reduced NFκB-associated inflammation in esophageal cells. This study demonstrated anti-genotoxic and anti-inflammatory effects of Lactobacilli, making them of significant interest in the prevention of Barrett's esophagus and esophageal adenocarcinoma in patients with GERD.
Collapse
Affiliation(s)
- Joshua N Bernard
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Vikram Chinnaiyan
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jasmine Almeda
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Alma Catala-Valentin
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Claudia D Andl
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| |
Collapse
|
4
|
Caspa Gokulan R, Paulrasu K, Azfar J, El-Rifai W, Que J, Boutaud OG, Ban Y, Gao Z, Buitrago MG, Dikalov SI, Zaika AI. Protein adduction causes non-mutational inhibition of p53 tumor suppressor. Cell Rep 2023; 42:112024. [PMID: 36848235 PMCID: PMC9989503 DOI: 10.1016/j.celrep.2023.112024] [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: 04/05/2022] [Revised: 06/04/2022] [Accepted: 01/09/2023] [Indexed: 01/24/2023] Open
Abstract
p53 is a key tumor suppressor that is frequently mutated in human tumors. In this study, we investigated how p53 is regulated in precancerous lesions prior to mutations in the p53 gene. Analyzing esophageal cells in conditions of genotoxic stress that promotes development of esophageal adenocarcinoma, we find that p53 protein is adducted with reactive isolevuglandins (isoLGs), products of lipid peroxidation. Modification of p53 protein with isoLGs diminishes its acetylation and binding to the promoters of p53 target genes causing modulation of p53-dependent transcription. It also leads to accumulation of adducted p53 protein in intracellular amyloid-like aggregates that can be inhibited by isoLG scavenger 2-HOBA in vitro and in vivo. Taken together, our studies reveal a posttranslational modification of p53 protein that causes molecular aggregation of p53 protein and its non-mutational inactivation in conditions of DNA damage that may play an important role in human tumorigenesis.
Collapse
Affiliation(s)
| | | | - Jamal Azfar
- Department of Surgery, University of Miami, Miami, FL, USA
| | - Wael El-Rifai
- Department of Surgery, University of Miami, Miami, FL, USA
| | - Jianwen Que
- Department of Medicine, Columbia University Medical Center, New York, NY, USA
| | - Olivier G Boutaud
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Yuguang Ban
- Department of Public Health Sciences, University of Miami, Miami, FL, USA
| | - Zhen Gao
- Department of Public Health Sciences, University of Miami, Miami, FL, USA
| | | | - Sergey I Dikalov
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alexander I Zaika
- Department of Surgery, University of Miami, Miami, FL, USA; Department of Veterans Affairs, Miami VA Healthcare System, Miami, FL, USA.
| |
Collapse
|
5
|
Li HS, Chu CL. Intestinal metaplasia in progression of Barrett's esophagus to esophageal adenocarcinoma. Shijie Huaren Xiaohua Zazhi 2023; 31:41-47. [DOI: 10.11569/wcjd.v31.i2.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The incidence of esophageal adenocarcinoma (EAC) has been increasing year by year. The prognosis of EAC is poor, and the 5-year survival rate is less than 20%. Barrett's esophagus (BE) is the only known precancerous lesion of EAC. BE with intestinal metaplasia (IM) has a higher risk of progressing to EAC. Exploring the mechanism of IM and finding targeted therapeutic targets for BE has become an important measure for tumor prevention. Bile acid reflux is considered an important factor in the occurrence of IM and promotes the progression of BE to EAC. However, the molecular regulatory mechanism of bile reflux induced IM and carcinogenesis remains unclear. This article reviews the environment, significance, and cell origin theory of IM, toxic effects of bile reflux, and molecular changes of IM progression to tumor, aiming to improve clinicians' understanding of IM in BE and provide evidence for early intervention of BE and prevention and treatment of EAC.
Collapse
Affiliation(s)
- Hai-Su Li
- Jinan Central Hospital, Jinan Key Translational Gastroenterology Laboratory, Jinan Digestive Diseases Clinical Research Center, Jinan 250013, Shandong Province, China
| | - Chuan-Lian Chu
- Jinan Central Hospital, Jinan Key Translational Gastroenterology Laboratory, Jinan Digestive Diseases Clinical Research Center, Jinan 250013, Shandong Province, China
| |
Collapse
|
6
|
Sylvester AL, Zhang DX, Ran S, Zinkevich NS. Inhibiting NADPH Oxidases to Target Vascular and Other Pathologies: An Update on Recent Experimental and Clinical Studies. Biomolecules 2022; 12:biom12060823. [PMID: 35740948 PMCID: PMC9221095 DOI: 10.3390/biom12060823] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/31/2022] [Accepted: 06/10/2022] [Indexed: 11/18/2022] Open
Abstract
Reactive oxygen species (ROS) can be beneficial or harmful in health and disease. While low levels of ROS serve as signaling molecules to regulate vascular tone and the growth and proliferation of endothelial cells, elevated levels of ROS contribute to numerous pathologies, such as endothelial dysfunctions, colon cancer, and fibrosis. ROS and their cellular sources have been extensively studied as potential targets for clinical intervention. Whereas various ROS sources are important for different pathologies, four NADPH oxidases (NOX1, NOX2, NOX4, and NOX5) play a prominent role in homeostasis and disease. NOX1-generated ROS have been implicated in hypertension, suggesting that inhibition of NOX1 may be a promising therapeutic approach. NOX2 and NOX4 oxidases are of specific interest due to their role in producing extra- and intracellular hydrogen peroxide (H2O2). NOX4-released hydrogen peroxide activates NOX2, which in turn stimulates the release of mitochondrial ROS resulting in ROS-induced ROS release (RIRR) signaling. Increased ROS production from NOX5 contributes to atherosclerosis. This review aims to summarize recent findings on NOX enzymes and clinical trials inhibiting NADPH oxidases to target pathologies including diabetes, idiopathic pulmonary fibrosis (IPF), and primary biliary cholangitis (PBC).
Collapse
Affiliation(s)
- Anthony L. Sylvester
- Department of Biology, University of Illinois at Springfield, Springfield, IL 62703, USA; or
| | - David X. Zhang
- Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
| | - Sophia Ran
- Department of Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, IL 62702, USA;
| | - Natalya S. Zinkevich
- Department of Biology, University of Illinois at Springfield, Springfield, IL 62703, USA; or
- Correspondence: ; Tel.: +1-(217)-206-8367
| |
Collapse
|
7
|
Molendijk J, Kolka CM, Cairns H, Brosda S, Mohamed A, Shah AK, Brown I, Hodson MP, Hennessy T, Liu G, Stoll T, Richards RS, Gartside M, Patel K, Clemons NJ, Phillips WA, Barbour A, Westerhuis JA, Hill MM. Elevation of fatty acid desaturase 2 in esophageal adenocarcinoma increases polyunsaturated lipids and may exacerbate bile acid-induced DNA damage. Clin Transl Med 2022; 12:e810. [PMID: 35560527 PMCID: PMC9099135 DOI: 10.1002/ctm2.810] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/22/2022] [Accepted: 03/27/2022] [Indexed: 12/04/2022] Open
Abstract
Background The risk of esophageal adenocarcinoma (EAC) is associated with gastro‐esophageal reflux disease (GERD) and obesity. Lipid metabolism‐targeted therapies decrease the risk of progressing from Barrett's esophagus (BE) to EAC, but the precise lipid metabolic changes and their roles in genotoxicity during EAC development are yet to be established. Methods Esophageal biopsies from the normal epithelium (NE), BE, and EAC, were analyzed using concurrent lipidomics and proteomics (n = 30) followed by orthogonal validation on independent samples using RNAseq transcriptomics (n = 22) and immunohistochemistry (IHC, n = 80). The EAC cell line FLO‐1 was treated with FADS2 selective inhibitor SC26196, and/or bile acid cocktail, followed by immunofluorescence staining for γH2AX. Results Metabolism‐focused Reactome analysis of the proteomics data revealed enrichment of fatty acid metabolism, ketone body metabolism, and biosynthesis of specialized pro‐resolving mediators in EAC pathogenesis. Lipidomics revealed progressive alterations (NE‐BE‐EAC) in glycerophospholipid synthesis with decreasing triglycerides and increasing phosphatidylcholine and phosphatidylethanolamine, and sphingolipid synthesis with decreasing dihydroceramide and increasing ceramides. Furthermore, a progressive increase in lipids with C20 fatty acids and polyunsaturated lipids with ≥4 double bonds were also observed. Integration with transcriptome data identified candidate enzymes for IHC validation: Δ4‐Desaturase, Sphingolipid 1 (DEGS1) which desaturates dihydroceramide to ceramide, and Δ5 and Δ6‐Desaturases (fatty acid desaturases, FADS1 and FADS2), responsible for polyunsaturation. All three enzymes showed significant increases from BE through dysplasia to EAC, but transcript levels of DEGS1 were decreased suggesting post‐translational regulation. Finally, the FADS2 selective inhibitor SC26196 significantly reduced polyunsaturated lipids with three and four double bonds and reduced bile acid‐induced DNA double‐strand breaks in FLO‐1 cells in vitro. Conclusions Integrated multiomics revealed sphingolipid and phospholipid metabolism rewiring during EAC development. FADS2 inhibition and reduction of the high polyunsaturated lipids effectively protected EAC cells from bile acid‐induced DNA damage in vitro, potentially through reduced lipid peroxidation.
Collapse
Affiliation(s)
- Jeffrey Molendijk
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia.,Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Cathryn M Kolka
- Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Henry Cairns
- Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Sandra Brosda
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia
| | - Ahmed Mohamed
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia.,Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Alok K Shah
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia.,Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | | | - Mark P Hodson
- School of Pharmacy, The University of Queensland, Woolloongabba, Australia
| | - Thomas Hennessy
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia.,Agilent Technologies, Mulgrave, Australia
| | - Guanghao Liu
- Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Thomas Stoll
- Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Renee S Richards
- Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Michael Gartside
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia
| | - Kalpana Patel
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia
| | - Nicholas J Clemons
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Wayne A Phillips
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Andrew Barbour
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia
| | - Johan A Westerhuis
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Michelle M Hill
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, Australia.,Precision and Systems Biomedicine Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| |
Collapse
|
8
|
Nejat PishKenari F, Qujeq D, Mohammady Bonahi SS, Kashifard M, Hajian -Tilaki K. Nitric oxide and inducible nitric oxide synthase levels in EE and NERD patients. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2022; 15:79-86. [PMID: 35611254 PMCID: PMC9123640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/29/2021] [Indexed: 11/01/2022]
Abstract
Aim This article aimed to evaluate nitric oxide (NO) and nitric oxide synthase (iNOS) markers in patients with erosive esophagitis (EE) and those with non-erosive reflux disease (NERD) and compare them with the control group. Background Gastro-esophageal reflux disease (GERD) is one of the most common disturbances of the upper digestive tract. Inducible nitric oxide synthase (iNOS) is expressed in esophageal adenocarcinoma. NO, the product of this enzyme, has been implicated in the pathogenesis of this condition. Nevertheless, the data on whether iNOS and NO are expressed in the early stages of GERD is conflicting. Methods In this study, tissue samples were obtained from fifty-four patients (27 with erosive esophagitis and 27 with non-erosive reflux disease) and 27 controls. Tissue concentrations of nitrite, nitrate, and iNOS were measured using Enzyme-Linked Immune-sorbent Assay (ELISA). The Bradford method was used to determine the protein concentration of samples. The results were analyzed by SPSS software (version 22.0). In multiple comparisons, the Tukey test was performed, and p < 0.05 was considered as the level of significance. Results Tissue amounts of iNOS were significantly higher (p= 0.001) in EE patients compared with the control group. There was a significant difference (p= 0.01) in this factor between EE patients and patients with NERD. Moreover, tissue levels of nitrite and nitrate were significantly higher (p = 0.001) in patient groups compared with the control group. Conclusion It was observed that NO and iNOS protein were increased in human esophagitis tissue. The results indicated that nitric oxide and iNOS levels are useful and effective markers in the pathogenesis of GERD. While the results are not certain, it is thought that a link exists between the expressions of iNOS and disease progression.
Collapse
Affiliation(s)
- Fatemeh Nejat PishKenari
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran, Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Iran, Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran
| | | | - Mehrdad Kashifard
- Department of Internal Medicine, Gastroenterology Division, Ayatollah Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | | |
Collapse
|
9
|
Hacioglu C. Capsaicin inhibits cell proliferation by enhancing oxidative stress and apoptosis through SIRT1/NOX4 signaling pathways in HepG2 and HL-7702 cells. J Biochem Mol Toxicol 2021; 36:e22974. [PMID: 34939720 DOI: 10.1002/jbt.22974] [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: 04/26/2021] [Revised: 11/26/2021] [Accepted: 12/09/2021] [Indexed: 01/10/2023]
Abstract
Capsaicin could suppress the proliferation of cancer cells and inhibit many biochemical pathways associated with tumorigenesis and metastasis. This study investigates the effects of capsaicin in both hepatocellular carcinoma (HepG2) and normal hepatocytes (HL-7702) via the SIRT1/NOX4 signaling pathway. After determination of cytotoxic concentrations of capsaicin on HL-7702 and HepG2 cells, we measured total oxidant status (TOS), reduced glutathione (GSH), 8-hydroxydeoxyguanosine (8-OHdG), cytochrome c (CYC), caspase3 (CASP3), Bcl-2, Bax, sirtuin1 (SIRT1), and NADPH oxidases4 (NOX4) levels. Besides this, we analyzed the messenger RNA and protein levels of SIRT1 and NOX4. We found that capsaicin increased TOS, 8-OHdG, CASP3, CYC, Bax, and NOX4 levels, and decreased Bcl-2, GSH, and SIRT1 in a concentration-dependent manner in HepG2 cells. However, especially low capsaicin concentration (128.75 µM) enhanced GSH and SIRT levels and reduced TOS, CASP3, CYC, 8-OHdG, and NOX4 levels in HL-7702 cells (p < 0.05). Interestingly, 128.75 and 172.8 µM capsaicin treatment increased SIRT1 expression levels in HL-7702 cells, resulting in an increase in GSH levels and a decrease in TOS, CYC, CAPS3, and 8-OHdG levels through NOX4 inhibition. Furthermore, we demonstrated a significant decrease in SIRT1 protein levels and an increase in NOX4 protein levels and caspase-3/-7 activities in both HL-7702 and HepG2 cells treated with 261.5 µM capsaicin. Additionally, morphological changes in HL-7702 and HepG2 cells treated with capsaicin correlated with the enhancement in oxidative burden, DNA damage, and apoptosis. Our results show that capsaicin effectively might cause higher oxidative, apoptotic, and DNA damage in HepG2 cells than in HL-7702 cells through the SIRT1/NOX4 signaling pathway.
Collapse
Affiliation(s)
- Ceyhan Hacioglu
- Department of Medical Biochemistry, Faculty of Medicine, Duzce University, Duzce, Turkey
| |
Collapse
|
10
|
Su J, He Z, Yu Y, Lu M, Wu Z, Zhang D. Gualou Xiebai Decoction ameliorates increased Caco-2 monolayer permeability induced by bile acids via tight junction regulation, oxidative stress suppression and apoptosis reduction. J Bioenerg Biomembr 2021; 54:45-57. [PMID: 34718922 DOI: 10.1007/s10863-021-09927-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 10/22/2021] [Indexed: 12/11/2022]
Abstract
Gualou Xiebai Decoction (GXD), a classic prescription, is widely used to dealing with inflammatory diseases in China for thousands of years. Abnormal metabolic state of bile acids (BAs) is confirmed to cause intestinal epithelial barrier dysfunction. In preliminary work, we observed that GXD could decrease intestinal permeability in hyperlipidemia mice. The present study aimed to explore the protective effect of GXD on intestinal mucosa in vitro. Caco-2 cell monolayer permeability among different groups was determined by measuring the concentrations of FITC-dextran in the lower compartments and transepithelial electrical resistance (TEER). Meanwhile, mRNA and protein expressions of tight junctions (TJs) were investigated. Generation of intracellular reactive oxygen species (ROS) and the ratio of cell apoptosis induced by BAs were assessed by fluorescence probe and flow cytometry. GXD was shown to keep the cell monolayer in low permeable status, increase TEER and mRNA and protein expressions of occludin (Ocln) and zonula occluden 2 (ZO2) remarkably in cells challenged with cholic acid (CA), deoxycholic acid (DCA) and glycocholic acid (GCA). However, no significant effects were uncovered against the pathological effects of taurocholic acid (TCA). Meanwhile, generation of ROS and increased levels of apoptotic cells caused by CA, DCA and GCA were dramatically decreased by GXD, which were not observed on TCA. GXD could significantly attenuate intestinal barrier dysfunction induced by BAs via TJs regulation, oxidative stress suppression and cell apoptosis decrease, but such effects and behind mechanisms differed among different kinds of BAs.
Collapse
Affiliation(s)
- Jiyuan Su
- The Department of Geriatrics, 900TH Hospital of Joint Logistics Support Force (Clinical College of Fujian Medical University), Fuzhou, 350001, China
| | - Zhiqing He
- Department of Cardiology, Changzheng Hospital, Naval Military Medical University, Shanghai, 200003, China
| | - Yunhua Yu
- The Department of Geriatrics, 900TH Hospital of Joint Logistics Support Force (Clinical College of Fujian Medical University), Fuzhou, 350001, China
| | - Mingfang Lu
- The Department of Geriatrics, 900TH Hospital of Joint Logistics Support Force (Clinical College of Fujian Medical University), Fuzhou, 350001, China
| | - Zonggui Wu
- Department of Cardiology, Changzheng Hospital, Naval Military Medical University, Shanghai, 200003, China.
| | - Dongmei Zhang
- The Department of Geriatrics, 900TH Hospital of Joint Logistics Support Force (Clinical College of Fujian Medical University), Fuzhou, 350001, China.
| |
Collapse
|
11
|
Sriramajayam K, Peng D, Lu H, Zhou S, Bhat N, McDonald OG, Que J, Zaika A, El-Rifai W. Activation of NRF2 by APE1/REF1 is redox-dependent in Barrett's related esophageal adenocarcinoma cells. Redox Biol 2021; 43:101970. [PMID: 33887608 PMCID: PMC8082268 DOI: 10.1016/j.redox.2021.101970] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Chronic gastroesophageal reflux disease (GERD) is a major risk factor for the development of metaplastic Barrett's esophagus (BE) and its progression to esophageal adenocarcinoma (EAC). Uncontrolled accumulation of reactive oxygen species (ROS) in response to acidic bile salts (ABS) in reflux conditions can be lethal to cells. In this study, we investigated the role of APE1/REF1 in regulating nuclear erythroid factor-like 2 (NRF2), the master antioxidant transcription factor, in response to reflux conditions. RESULTS We found that APE1 protein was critical for protecting against cellular ROS levels, oxidative DNA damage, double strand DNA breaks, and cell death in response to conditions that mimic reflux. Analysis of cell lines and de-identified tissues from patients with EAC demonstrated overexpression of both APE1 and NRF2 in EAC cells, as compared to non-neoplastic esophageal cells. Using reflux conditions, we detected concordant and prolonged increases of APE1 and NRF2 protein levels for several hours, following transient short exposure to ABS (20 min). NRF2 transcription activity, as measured by ARE luciferase reporter, and expression of its target genes (HO-1 and TRXND1) were similarly increased in response to ABS. Using genetic knockdown of APE1, we found that APE1 was required for the increase in NRF2 protein stability, nuclear localization, and transcription activation in EAC. Using knockdown of APE1 with reconstitution of wild-type and a redox-deficient mutant (C65A) of APE1, as well as pharmacologic APE1 redox inhibitor (E3330), we demonstrated that APE1 regulated NRF2 in a redox-dependent manner. Mechanistically, we found that APE1 is required for phosphorylation and inactivation of GSK-3β, an important player in the NRF2 degradation pathway. CONCLUSION APE1 redox function was required for ABS-induced activation of NRF2 by regulating phosphorylation and inactivation of GSK-3β. The APE1-NRF2 network played a critical role in protecting esophageal cells against ROS and promoting cell survival under oxidative reflux conditions.
Collapse
Affiliation(s)
- Kannappan Sriramajayam
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Dunfa Peng
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA; Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL-33136, USA
| | - Heng Lu
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Shoumin Zhou
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Nadeem Bhat
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Oliver G McDonald
- Department of Pathology, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Jianwen Que
- Department of Medicine, Columbia University, New York, NY, 10027, USA
| | - Alexander Zaika
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA; Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL-33136, USA; Department of Veterans Affairs, Miami Healthcare System, Miami, FL, 33136, USA
| | - Wael El-Rifai
- Department of Surgery, Miller School of Medicine, University of Miami, Miami, FL, 33136, USA; Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL-33136, USA; Department of Veterans Affairs, Miami Healthcare System, Miami, FL, 33136, USA.
| |
Collapse
|
12
|
Lin RJ, Huang Z, Wang SL, Chen H, Wei HX, Shen RK, Yang LY, Lin JH. Clinicopathological and prognostic value of NADPH oxidase 2 (NOX2) in primary osteosarcoma. J Orthop Sci 2021; 26:466-472. [PMID: 32402505 DOI: 10.1016/j.jos.2020.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/29/2020] [Accepted: 04/01/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Osteosarcoma is the most common primary malignant bone tumor, particularly among children and adolescents, and the prognosis of osteosarcoma patients remains poor. The NADPH oxidase 2 (NOX2) has been found over-expressed in several human cancers, and closely associated with poor prognosis. Meanwhile the role of NOX2 in osteosarcoma patients has not been reported. This study aimed to investigate the clinicopathological and prognostic significance of NOX2 in osteosarcoma patients. METHODS Immunohistochemistry (IHC), western blot (WB) and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) were used to detect the expression of NOX2 in 55 primary osteosarcoma specimens and in 20 non-neoplastic bone tissue specimens. The correlations between NOX2 expression and clinicopathological parameters were analysed by using the χ2 test or Fisher's exact test. Disease free survival and overall survival of osteosarcoma patients were assessed by using the Kaplan-Meier method and Cox proportional hazards model. RESULTS NOX2 was over-expressed significantly in osteosarcoma compared with that in non-neoplastic bone tissue, and correlated with progression free survival (P < 0.001) and overall survival (P < 0.001). The over-expression of NOX2 was associated with tumor size (P < 0.001), tumor location (P < 0.001). The Cox analysed shown that the over-expression of NOX2 was predicted to be worse PFS (hazard ratio (HR) = 4.10, P = 0.004) and OS (hazard ratio (HR) = 3.50, P = 0.010) time in osteosarcoma patients. CONCLUSIONS The results of our study suggest that the over-expression of NOX2 is related to adverse clinical outcome, and can be viewed as an independent prognostic marker in osteosarcoma. Further research is required to verify the predictive value of NOX2 in osteosarcoma patients.
Collapse
Affiliation(s)
- Rong-Jin Lin
- Department of Nursing, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Zhen Huang
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Sheng-Lin Wang
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Hui Chen
- Department of Nephrology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Hong-Xiang Wei
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Rong-Kai Shen
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Liang-Yong Yang
- Department of Pharmacy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| | - Jian-Hua Lin
- Department of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China; Fujian Provincial Institute of Orthopedics, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, 350005, PR China.
| |
Collapse
|
13
|
Tan J, Li L, Huang X, Yang C, Liang X, Zhao Y, Xie J, Chen R, Wang D, Xie S. Associations between gastro-oesophageal reflux disease and a range of diseases: an umbrella review of systematic reviews and meta-analyses. BMJ Open 2020; 10:e038450. [PMID: 33380477 PMCID: PMC7780720 DOI: 10.1136/bmjopen-2020-038450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE Numerous meta-analyses have revealed the association between gastro-oesophageal reflux disease (GORD) and a range of diseases; however, the certainty of the evidence remains unclear. This study aimed to summarise and assess the certainty of evidence derived from meta-analyses. METHODS Embase, PubMed, Web of Science, Cochrane Databases of Systematic Reviews, CNKI and Wangfang databases from their inception to 22 February 2020 were queried for systematic reviews and meta-analyses on the association between GORD and various diseases. The methodological quality of the included studies was assessed using A Measurement Tool to Assess Systematic Reviews 2 (AMSTAR 2), and evidence certainty was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system. Statistical analysis was conducted using Stata V.15. RESULTS Ten publications with associations between GORD and different types of diseases were included. There was high heterogeneity (I2 >75%) among seven independent meta-analyses. Evidence for publication bias in two independent meta-analyses was also observed. According to the AMSTAR 2 approach, the methodological quality was high for 20% of meta-analyses, moderate for 10%, low for 40% and critically low for 30%. Based on GRADE approach, the certainty of evidence was high for the association between GORD and higher risk of chronic obstructive pulmonary disease (COPD) exacerbation (OR 5.37; 95% CI 2.71 to 10.64) and higher prevalence of oesophageal adenocarcinoma (OR 4.57; 95% CI 3.89 to 5.36), and it was moderate for the association between GORD and higher chronic rhinosinusitis prevalence (OR 2.16; 95% CI 1.37 to 3.48). CONCLUSION The association between GORD and a range of diseases was extensively studied, and our findings revealed a high certainty of evidence of the association between GORD and an increased risk of COPD exacerbation as well as increased prevalence of oesophageal adenocarcinoma. Further investigations using systematic reviews and meta-analyses of high methodological quality that include prospective large cohort studies and adjusted confounders are warranted. PROSPERO REGISTRATION NUMBER CRD42019122264.
Collapse
Affiliation(s)
- JinJing Tan
- Graduate School, Jiang Xi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China
- Department of Administration, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Liqun Li
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Xiaoyan Huang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Chengning Yang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Xue Liang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Yina Zhao
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Jieru Xie
- Department of Center of Preventive Disease Treatment, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Ran Chen
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Daogang Wang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Sheng Xie
- Department of Administration, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| |
Collapse
|
14
|
Dai YF, Tan JJ, Deng CQ, Liu X, Lv ZH, Li XP. Association of pepsin and DNA damage in laryngopharyngeal reflux-related vocal fold polyps. Am J Otolaryngol 2020; 41:102681. [PMID: 32889371 DOI: 10.1016/j.amjoto.2020.102681] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/25/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE This study aimed to evaluate if laryngopharyngeal reflux (LPR) plays a role as a risk factor for vocal fold polyps (VFPs), and if pepsin is associated with higher oxidative DNA damage of VFPs in the presence of LPR. METHODS Thirty patients with VFPs were recruited between 2017 and 2018. Prior to surgery, a laryngoscopy was performed on all subjects to evaluate VFPs. Polyp tissue and saliva samples were obtained scrupulously. Hematoxylin-eosin staining was performed for pathologic analysis. Immunohistochemistry and ELISA were used to detect pepsin in tissue and saliva of VFP patients. 8-OHdG and p-H2AX expression was detected to measure oxidative DNA damage in tissue. DNA damage was investigated in human immortalized laryngeal epithelial cells exposed to pepsin. RESULTS The pepsin concentration in saliva was significantly higher (t = 2.38, P = .024) in the pepsin positive group. There was no significant difference in pepsin expression at different sites and pathological subtypes of VFPs. The levels of 8-OHdG and p-H2AX were significantly higher in the pepsin positive group and positively correlated with the tissue expression of pepsin. The concentration of pepsin in saliva also showed a significant correlation with 8-OHdG levels. Expression of 8-OHdG and p-H2AX, and tail moment of the comet assay were elevated in human immortalized laryngeal epithelial cells following treatment with pepsin. CONCLUSION Patients with VFPs have higher levels of oxidative DNA damage in the presence of pepsin reflux. Pepsin may induce DNA damage in laryngeal epithelial cells and participate in the pathogenesis of VFPs.
Collapse
|
15
|
Gudkov SV, Penkov NV, Baimler IV, Lyakhov GA, Pustovoy VI, Simakin AV, Sarimov RM, Scherbakov IA. Effect of Mechanical Shaking on the Physicochemical Properties of Aqueous Solutions. Int J Mol Sci 2020; 21:ijms21218033. [PMID: 33126612 PMCID: PMC7662793 DOI: 10.3390/ijms21218033] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 10/27/2020] [Indexed: 11/16/2022] Open
Abstract
Long-lived luminescence in the blue region was found to occur in deionized water saturated with atmospheric gases following mechanical shaking. Luminescence intensity decreased exponentially after the cessation of stress. During vigorous mechanical shaking, we observed gas bubbles in solution, and the liquid–gas interface area increased noticeably. At the same time, the concentration of molecular oxygen decreased, which could not be attributed to the water warming up with exposure to mechanical stress. However, deaerated water rapidly became saturated with gases following mechanical stress. The recommendation that cell culture media should be mixed after they are removed from the fridge in order to allow saturation with oxygen is probably misleading. It was shown that gases existed in water both in the form of individual molecules and nanobubbles. Mechanical stress did not influence the number or size of nanobubbles. While gas nanobubbles were absent in freshly prepared deaerated water, they appeared following exposure to mechanical stress. In addition, in mechanically treated gas-saturated water, there was seemingly an equilibrium shift towards the decomposition of carbonic acid to water and carbon dioxide. At the same time, the pH of water tended to increase immediately after mechanical stress. It was demonstrated that reactive oxygen species (ROS) form in gas-saturated water under mechanical stress (30 Hz, amplitude of 5 mm). The relative generation rate of hydrogen peroxide and of the hydroxyl radical was 1 nM/min and 0.5 nM/min, respectively. It was found that with an increase in the frequency of mechanical action (f), the rate of ROS generation increased in proportion to f 2. The major pathways for hydrogen peroxide generation are probably associated with the formation of singlet oxygen and its further reduction, and the alternative pathway is the formation of hydrogen peroxide as a result of hydroxyl radical recombination.
Collapse
Affiliation(s)
- Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
- Correspondence:
| | - Nikita V. Penkov
- Institute of Cell Biophysics of the Russian Academy of Sciences, PSCBR RAS, 142290 Pushchino, Russia;
| | - Ilya V. Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
| | - Gennady A. Lyakhov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
| | - Vladimir I. Pustovoy
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
| | - Alexander V. Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
| | - Ruslan M. Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
| | - Ivan A. Scherbakov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (I.V.B.); (G.A.L.); (V.I.P.); (A.V.S.); (R.M.S.); (I.A.S.)
| |
Collapse
|
16
|
Abstract
Significance: The primary function of NADPH oxidases (NOX1-5 and dual oxidases DUOX1/2) is to produce reactive oxygen species (ROS). If inadequately regulated, NOX-associated ROS can promote oxidative stress, aberrant signaling, and genomic instability. Correspondingly, NOX isoforms are known to be overexpressed in multiple malignancies, thus constituting potential therapeutic targets in cancer. Recent Advances: Multiple genetic studies aimed at suppressing the expression of NOX proteins in cellular and animal models of cancer have provided support for the notion that NOXs play a pro-tumorigenic role. Further, large drug screens and rational design efforts have yielded inhibitor compounds, such as the diphenylene iodonium (DPI) analog series developed by our group, with increased selectivity and potency over "first generation" NOX inhibitors such as apocynin and DPI. Critical Issues: The precise role of NOX enzymes in tumor biology remains poorly defined. The tumorigenic properties of NOXs vary with cancer type, and precise tools, such as selective inhibitors, are needed to deconvolute NOX contribution to cancer development. Most NOX inhibitors developed to date are unspecific, and/or their mechanistic and pharmacological characteristics are not well defined. A lack of high-resolution crystal structures for NOX functional domains has hindered the development of potent and selective inhibitors. Future Directions: In-depth studies of NOX interactions with the tumor microenvironment (e.g., cytokines, cell-surface antigens) will help identify new approaches for NOX inhibition in cancer.
Collapse
Affiliation(s)
- Mariam M Konaté
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Smitha Antony
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - James H Doroshow
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland, USA.,Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| |
Collapse
|
17
|
Lu J, Jiang G, Wu Y, Antony S, Meitzler JL, Juhasz A, Liu H, Roy K, Makhlouf H, Chuaqui R, Butcher D, Konaté MM, Doroshow JH. NADPH oxidase 1 is highly expressed in human large and small bowel cancers. PLoS One 2020; 15:e0233208. [PMID: 32428030 PMCID: PMC7237001 DOI: 10.1371/journal.pone.0233208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 04/30/2020] [Indexed: 12/21/2022] Open
Abstract
To facilitate functional investigation of the role of NADPH oxidase 1 (NOX1) and associated reactive oxygen species in cancer cell signaling, we report herein the development and characterization of a novel mouse monoclonal antibody that specifically recognizes the C-terminal region of the NOX1 protein. The antibody was validated in stable NOX1 overexpression and knockout systems, and demonstrates wide applicability for Western blot analysis, confocal microscopy, flow cytometry, and immunohistochemistry. We employed our NOX1 antibody to characterize NOX1 expression in a panel of 30 human colorectal cancer cell lines, and correlated protein expression with NOX1 mRNA expression and superoxide production in a subset of these cells. Although a significant correlation between oncogenic RAS status and NOX1 mRNA levels could not be demonstrated in colon cancer cell lines, RAS mutational status did correlate with NOX1 expression in human colon cancer surgical specimens. Immunohistochemical analysis of a comprehensive set of tissue microarrays comprising over 1,200 formalin-fixed, paraffin-embedded tissue cores from human epithelial tumors and inflammatory disease confirmed that NOX1 is overexpressed in human colon and small intestinal adenocarcinomas, as well as adenomatous polyps, compared to adjacent, uninvolved intestinal mucosae. In contradistinction to prior studies, we did not find evidence of NOX1 overexpression at the protein level in tumors versus histologically normal tissues in prostate, lung, ovarian, or breast carcinomas. This study constitutes the most comprehensive histopathological characterization of NOX1 to date in cellular models of colon cancer and in normal and malignant human tissues using a thoroughly evaluated monoclonal antibody. It also further establishes NOX1 as a clinically relevant therapeutic target in colorectal and small intestinal cancer.
Collapse
Affiliation(s)
- Jiamo Lu
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Guojian Jiang
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Yongzhong Wu
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Smitha Antony
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Jennifer L. Meitzler
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Agnes Juhasz
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Han Liu
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Krishnendu Roy
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Hala Makhlouf
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Rodrigo Chuaqui
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Donna Butcher
- Pathology/Histotechnology Laboratory, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, United States of America
| | - Mariam M. Konaté
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| | - James H. Doroshow
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, Maryland, United States of America
| |
Collapse
|
18
|
Caspa Gokulan R, Garcia-Buitrago MT, Zaika AI. From genetics to signaling pathways: molecular pathogenesis of esophageal adenocarcinoma. Biochim Biophys Acta Rev Cancer 2019; 1872:37-48. [PMID: 31152823 PMCID: PMC6692203 DOI: 10.1016/j.bbcan.2019.05.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/10/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023]
Abstract
Esophageal adenocarcinoma (EAC) has one of the fastest rising incidence rates in the U.S. and many other Western countries. One of the unique risk factors for EAC is gastroesophageal reflux disease (GERD), a chronic digestive condition in which acidic contents from the stomach, frequently mixed with duodenal bile, enter the esophagus resulting in esophageal tissue injury. At the cellular level, progression to EAC is underlined by continuous DNA damage caused by reflux and chronic inflammatory factors that increase the mutation rate and promote genomic instability. Despite recent successes in cancer diagnostics and treatment, EAC remains a poorly treatable disease. Recent research has shed new light on molecular alterations underlying progression to EAC and revealed novel treatment options. This review focuses on the genetic and molecular studies of EAC. The molecular changes that occur during the transformation of normal Barrett's esophagus to esophageal adenocarcinoma are also discussed.
Collapse
Affiliation(s)
| | | | - Alexander I Zaika
- Department of Surgery, University of Miami, Miami, FL, United States of America; Department of Veterans Affairs, Miami VA Healthcare System, Miami, FL, United States of America.
| |
Collapse
|
19
|
Caspa Gokulan R, Adcock JM, Zagol-Ikapitte I, Mernaugh R, Williams P, Washington KM, Boutaud O, Oates JA, Dikalov SI, Zaika AI. Gastroesophageal Reflux Induces Protein Adducts in the Esophagus. Cell Mol Gastroenterol Hepatol 2018; 7:480-482.e7. [PMID: 30827415 PMCID: PMC6410348 DOI: 10.1016/j.jcmgh.2018.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 10/24/2018] [Accepted: 10/29/2018] [Indexed: 02/08/2023]
Affiliation(s)
| | - Jamie M. Adcock
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Irene Zagol-Ikapitte
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Raymond Mernaugh
- Department of Biochemistry, Vanderbilt University, Nashville, Tennessee
| | - Phillip Williams
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kay M. Washington
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Olivier Boutaud
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee
| | - John A. Oates
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Pharmacology, Vanderbilt University, Nashville, Tennessee
| | - Sergey I. Dikalov
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Alexander I. Zaika
- Department of Surgery, University of Miami, Miami, Florida,Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Veterans Affairs, Miami VA Healthcare System, Miami, Florida,Corresponding author:
| |
Collapse
|
20
|
Abstract
Barrett's esophagus (BE) is an asymptomatic condition of the distal esophagus that can progress to aggressive adenocarcinoma of the esophagus. Although BE is not malignant, the amount of deoxyribonucleic acid (DNA) damage is comparable to some malignancies such as melanoma and breast carcinoma. The purpose of this literature review is to evaluate the anomalies that underlie the transformation of the normal stratified squamous epithelium of the esophagus into metaplastic columnar epithelium with a potential of progressing into esophageal adenocarcinoma based on an appraisal and scrutiny of the literature published since 2000. A systematic search of freely available journal articles pertinent to the pathoetiology (molecular and clinical risk factors) of BE was performed within PubMed and Google Scholar. All articles published in English reporting on the risks and molecular transformation of normal esophageal mucosa into metaplastic mucosa were considered; the research did not look further to the pathoetiology of esophageal adenocarcinoma. Each journal article was assessed based on the content, relevance, and applicability to this literature review. An assessment of 118 full-length articles produced 18 articles for the qualitative analysis. We noted risk factors, such as gastroesophageal reflux of acid and bile, cause aberrations at a molecular level to alter cell cycle control to culminate in morphological changes in esophageal mucosa, producing metaplastic cells with a potential of malignant transformation. There is a need for translational research to bridge the gap between genetics and molecular knowledge to achieve clinical preventive, diagnostic, and therapeutic approaches to addressing BE.
Collapse
|
21
|
Potential role of mitochondrial damage and S9 mixture including metabolic enzymes in ZnO nanoparticles-induced oxidative stress and genotoxicity in Chinese hamster lung (CHL/IU) cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 834:25-34. [DOI: 10.1016/j.mrgentox.2018.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 12/16/2022]
|
22
|
Miyata Y, Matsuo T, Sagara Y, Ohba K, Ohyama K, Sakai H. A Mini-Review of Reactive Oxygen Species in Urological Cancer: Correlation with NADPH Oxidases, Angiogenesis, and Apoptosis. Int J Mol Sci 2017; 18:ijms18102214. [PMID: 29065504 PMCID: PMC5666894 DOI: 10.3390/ijms18102214] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 12/24/2022] Open
Abstract
Oxidative stress refers to elevated reactive oxygen species (ROS) levels, and NADPH oxidases (NOXs), which are one of the most important sources of ROS. Oxidative stress plays important roles in the etiologies, pathological mechanisms, and treatment strategies of vascular diseases. Additionally, oxidative stress affects mechanisms of carcinogenesis, tumor growth, and prognosis in malignancies. Nearly all solid tumors show stimulation of neo-vascularity, termed angiogenesis, which is closely associated with malignant aggressiveness. Thus, cancers can be seen as a type of vascular disease. Oxidative stress-induced functions are regulated by complex endogenous mechanisms and exogenous factors, such as medication and diet. Although understanding these regulatory mechanisms is important for improving the prognosis of urothelial cancer, it is not sufficient, because there are controversial and conflicting opinions. Therefore, we believe that this knowledge is essential to discuss observations and treatment strategies in urothelial cancer. In this review, we describe the relationships between members of the NOX family and tumorigenesis, tumor growth, and pathological mechanisms in urological cancers including prostate cancer, renal cell carcinoma, and urothelial cancer. In addition, we introduce natural compounds and chemical agents that are associated with ROS-induced angiogenesis or apoptosis.
Collapse
Affiliation(s)
- Yasuyoshi Miyata
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Tomohiro Matsuo
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Yuji Sagara
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Kojiro Ohba
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Kaname Ohyama
- Department of Pharmaceutical Science, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Hideki Sakai
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| |
Collapse
|