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Wei D, Qu C, Zhao N, Li S, Pu N, Song Z, Tao Y. The significance of precisely regulating heme oxygenase-1 expression: Another avenue for treating age-related ocular disease? Ageing Res Rev 2024; 97:102308. [PMID: 38615894 DOI: 10.1016/j.arr.2024.102308] [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: 01/20/2024] [Revised: 03/23/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Aging entails the deterioration of the body's organs, including overall damages at both the genetic and cellular levels. The prevalence of age-related ocular disease such as macular degeneration, dry eye diseases, glaucoma and cataracts is increasing as the world's population ages, imposing a considerable economic burden on individuals and society. The development of age-related ocular disease is predominantly triggered by oxidative stress and chronic inflammatory reaction. Heme oxygenase-1 (HO-1) is a crucial antioxidant that mediates the degradative process of endogenous iron protoporphyrin heme. It catalyzes the rate-limiting step of the heme degradation reaction, and releases the metabolites such as carbon monoxide (CO), ferrous, and biliverdin (BV). The potent scavenging activity of these metabolites can help to defend against peroxides, peroxynitrite, hydroxyl, and superoxide radicals. Other than directly decomposing endogenous oxidizing substances (hemoglobin), HO-1 is also a critical regulator of inflammatory cells and tissue damage, exerting its anti-inflammation activity through regulating complex inflammatory networks. Therefore, promoting HO-1 expression may act as a promising therapeutic strategy for the age-related ocular disease. However, emerging evidences suggest that the overexpression of HO-1 significantly contributes to ferroptosis due to its dual nature. Surplus HO-1 leads to excessive Fe2+ and reactive oxygen species, thereby causing lipid peroxidation and ferroptosis. In this review, we elucidate the role of HO-1 in countering age-related disease, and summarize recent pharmacological trials that targeting HO-1 for disease management. Further refinements of the knowledge would position HO-1 as a novel therapeutic target for age-related ocular disease.
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Affiliation(s)
- Dong Wei
- Department of ophthalmology, Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou 450003, China; College of Medicine, Zhengzhou University, China
| | - Chengkang Qu
- Department of ophthalmology, Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Na Zhao
- College of Medicine, Zhengzhou University, China
| | - Siyu Li
- College of Medicine, Zhengzhou University, China
| | - Ning Pu
- Department of ophthalmology, Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou 450003, China; College of Medicine, Zhengzhou University, China
| | - Zongming Song
- Department of ophthalmology, Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou 450003, China.
| | - Ye Tao
- Department of ophthalmology, Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou 450003, China.
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Zhang H, Chai J, Cao C, Wang X, Pang W. Supplementing Boar Diet with Nicotinamide Mononucleotide Improves Sperm Quality Probably through the Activation of the SIRT3 Signaling Pathway. Antioxidants (Basel) 2024; 13:507. [PMID: 38790612 PMCID: PMC11117624 DOI: 10.3390/antiox13050507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/21/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024] Open
Abstract
Sperm quality is an important indicator to evaluate the reproduction ability of animals. Nicotinamide mononucleotide (NMN) participates in cell energy metabolism and reduces cell oxidative stress. However, the effect and regulatory mechanism of NMN on porcine sperm quality are still unknown. Here, 32 Landrace boars were randomly assigned to four groups (n = 8) and fed with different levels of NMN (0, 8, 16 or 32 mg/kg/d) for 9 weeks, and then serum and semen samples of the boars were collected to investigate the function and molecular mechanism of NMN in sperm quality. The results showed that the dietary NMN supplementation significantly increased sperm volume, density and motility (p < 0.05). Interestingly, NMN apparently improved the antioxidative indexes and increased the levels of testosterone (p < 0.05) in serum. Furthermore, NMN upregulated the protein levels of sirtuin 3 (SIRT3), antioxidation and oxidative phosphorylation (OXPHOS), but downregulated the protein levels of apoptosis in semen. Mechanically, NMN protected sperm from H2O2-induced oxidative stress and apoptosis through SIRT3 deacetylation. Importantly, the SIRT3-specific inhibitor 3-TYP attenuated the antioxidation and antiapoptosis of NMN in sperm. Therefore, NMN exerts antioxidation and antiapoptosis to improve boar sperm quality via the SIRT3 signaling pathway. Our findings suggest that NMN is a novel potential boar antioxidative feed additive to produce high-quality porcine semen.
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Affiliation(s)
| | | | | | | | - Weijun Pang
- Key Laboratory for Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Xianyang 712100, China; (H.Z.); (J.C.); (C.C.); (X.W.)
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3
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Ricciutelli M, Angeloni S, Conforti S, Corneli M, Caprioli G, Sagratini G, Alabed HBR, D'Amato Tóthová J, Pellegrino RM. An untargeted metabolomics approach to study changes of the medium during human cornea culture. Metabolomics 2024; 20:44. [PMID: 38581549 DOI: 10.1007/s11306-024-02102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/15/2024] [Indexed: 04/08/2024]
Abstract
INTRODUCTION Two main approaches (organ culture and hypothermia) for the preservation and storage of human donor corneas are globally adopted for corneal preservation before the transplant. Hypothermia is a hypothermic storage which slows down cellular metabolism while organ culture, a corneal culture performed at 28-37 °C, maintains an active corneal metabolism. Researchers, till now, have just studied the impact of organ culture on human cornea after manipulating and disrupting tissues. OBJECTIVES The aim of the current work was to optimize an analytical procedure which can be useful for discovering biomarkers capable of predicting tissue health status. For the first time, this research proposed a preliminary metabolomics study on medium for organ culture without manipulating and disrupting the valuable human tissues which could be still used for transplantation. METHODS In particular, the present research proposed a method for investigating changes in the medium, over a storage period of 20 days, in presence and absence of a human donor cornea. An untargeted metabolomics approach using UHPLC-QTOF was developed to deeply investigate the differences on metabolites and metabolic pathways and the influence of the presence of the cornea inside the medium. RESULTS Differences in the expression of some compounds emerged from this preliminary metabolomics approach, in particular in medium maintained for 10 and 20 days in presence but also in the absence of cornea. A total of 173 metabolites have been annotated and 36 pathways were enriched by pathway analysis. CONCLUSION The results revealed a valuable untargeted metabolomics approach which can be applied in organ culture metabolomics.
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Affiliation(s)
- Massimo Ricciutelli
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy
| | - Simone Angeloni
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy.
| | - Silvia Conforti
- The Marche Region Eye Bank, AST Ancona - E. Profili Hospital, 60044, Fabriano, Italy
| | - Massimiliano Corneli
- The Marche Region Eye Bank, AST Ancona - E. Profili Hospital, 60044, Fabriano, Italy
| | - Giovanni Caprioli
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy
| | - Gianni Sagratini
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy
| | - Husam B R Alabed
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100, Perugia, Italy
| | | | - Roberto Maria Pellegrino
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100, Perugia, Italy
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Maiese K. Cornerstone Cellular Pathways for Metabolic Disorders and Diabetes Mellitus: Non-Coding RNAs, Wnt Signaling, and AMPK. Cells 2023; 12:2595. [PMID: 37998330 PMCID: PMC10670256 DOI: 10.3390/cells12222595] [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: 09/21/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Metabolic disorders and diabetes (DM) impact more than five hundred million individuals throughout the world and are insidious in onset, chronic in nature, and yield significant disability and death. Current therapies that address nutritional status, weight management, and pharmacological options may delay disability but cannot alter disease course or functional organ loss, such as dementia and degeneration of systemic bodily functions. Underlying these challenges are the onset of aging disorders associated with increased lifespan, telomere dysfunction, and oxidative stress generation that lead to multi-system dysfunction. These significant hurdles point to the urgent need to address underlying disease mechanisms with innovative applications. New treatment strategies involve non-coding RNA pathways with microRNAs (miRNAs) and circular ribonucleic acids (circRNAs), Wnt signaling, and Wnt1 inducible signaling pathway protein 1 (WISP1) that are dependent upon programmed cell death pathways, cellular metabolic pathways with AMP-activated protein kinase (AMPK) and nicotinamide, and growth factor applications. Non-coding RNAs, Wnt signaling, and AMPK are cornerstone mechanisms for overseeing complex metabolic pathways that offer innovative treatment avenues for metabolic disease and DM but will necessitate continued appreciation of the ability of each of these cellular mechanisms to independently and in unison influence clinical outcome.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, NY 10022, USA
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Li SY, Xue RY, Wu H, Pu N, Wei D, Zhao N, Song ZM, Tao Y. Novel Role of Molecular Hydrogen: The End of Ophthalmic Diseases? Pharmaceuticals (Basel) 2023; 16:1567. [PMID: 38004433 PMCID: PMC10674431 DOI: 10.3390/ph16111567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 11/26/2023] Open
Abstract
Molecular hydrogen (H2) is a colorless, odorless, and tasteless gas which displays non-toxic features at high concentrations. H2 can alleviate oxidative damage, reduce inflammatory reactions and inhibit apoptosis cascades, thereby inducing protective and repairing effects on cells. H2 can be transported into the body in the form of H2 gas, hydrogen-rich water (HRW), hydrogen-rich saline (HRS) or H2 produced by intestinal bacteria. Accumulating evidence suggest that H2 is protective against multiple ophthalmic diseases, including cataracts, dry eye disease, diabetic retinopathy (DR) and other fields. In particular, H2 has been tested in the treatment of dry eye disease and corneal endothelial injury in clinical practice. This medical gas has brought hope to patients suffering from blindness. Although H2 has demonstrated promising therapeutic potentials and broad application prospects, further large-scale studies involving more patients are still needed to determine its optimal application mode and dosage. In this paper, we have reviewed the basic characteristics of H2, and its therapeutic effects in ophthalmic diseases. We also focus on the latest progress in the administration approaches and mechanisms underlying these benefits.
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Affiliation(s)
| | | | | | | | | | | | - Zong-Ming Song
- Henan Eye Institute, Henan Eye Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou 450003, China
| | - Ye Tao
- Henan Eye Institute, Henan Eye Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou 450003, China
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Liu S, Zhang W. NAD + metabolism and eye diseases: current status and future directions. Mol Biol Rep 2023; 50:8653-8663. [PMID: 37540459 DOI: 10.1007/s11033-023-08692-y] [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: 05/16/2023] [Accepted: 07/18/2023] [Indexed: 08/05/2023]
Abstract
Currently, there are no truly effective treatments for a variety of eye diseases, such as glaucoma, age-related macular degeneration (AMD), and inherited retinal degenerations (IRDs). These conditions have a significant impact on patients' quality of life and can be a burden on society. However, these diseases share a common pathological process of NAD+ metabolism disorders. They are either associated with genetically induced primary NAD+ synthase deficiency, decreased NAD+ levels due to aging, or enhanced NAD+ consuming enzyme activity during disease pathology. In this discussion, we explore the role of NAD+ metabolic disorders in the development of associated ocular diseases and the potential advantages and disadvantages of various methods to increase NAD+ levels. It is essential to carefully evaluate the possible adverse effects of these methods and conduct a more comprehensive and objective assessment of their function before considering their use.
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Affiliation(s)
- Siyuan Liu
- Department of Ophthalmology, Second Clinical Medical College, Lanzhou University, 730030, Lanzhou, VA, China
| | - Wenfang Zhang
- Department of Ophthalmology, The Second Hospital of Lanzhou University, 730030, Lanzhou, VA, China.
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Liang SP, Wang XZ, Piao MH, Chen X, Wang ZC, Li C, Wang YB, Lu S, He C, Wang YL, Chi GF, Ge PF. Activated SIRT1 contributes to DPT-induced glioma cell parthanatos by upregulation of NOX2 and NAT10. Acta Pharmacol Sin 2023; 44:2125-2138. [PMID: 37277492 PMCID: PMC10545831 DOI: 10.1038/s41401-023-01109-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 05/09/2023] [Indexed: 06/07/2023] Open
Abstract
Parthanatos is a type of programmed cell death dependent on hyper-activation of poly (ADP-ribose) polymerase 1 (PARP-1). SIRT1 is a highly conserved nuclear deacetylase and often acts as an inhibitor of parthanatos by deacetylation of PARP1. Our previous study showed that deoxypodophyllotoxin (DPT), a natural compound isolated from the traditional herb Anthriscus sylvestris, triggered glioma cell death via parthanatos. In this study, we investigated the role of SIRT1 in DPT-induced human glioma cell parthanatos. We showed that DPT (450 nmol/L) activated both PARP1 and SIRT1, and induced parthanatos in U87 and U251 glioma cells. Activation of SIRT1 with SRT2183 (10 μmol/L) enhanced, while inhibition of SIRT1 with EX527 (200 μmol/L) or knockdown of SIRT1 attenuated DPT-induced PARP1 activation and glioma cell death. We demonstrated that DPT (450 nmol/L) significantly decreased intracellular NAD+ levels in U87 and U251 cells. Further decrease of NAD+ levels with FK866 (100 μmol/L) aggravated, but supplement of NAD+ (0.5, 2 mmol/L) attenuated DPT-induced PARP1 activation. We found that NAD+ depletion enhanced PARP1 activation via two ways: one was aggravating ROS-dependent DNA DSBs by upregulation of NADPH oxidase 2 (NOX2); the other was reinforcing PARP1 acetylation via increase of N-acetyltransferase 10 (NAT10) expression. We found that SIRT1 activity was improved when being phosphorylated by JNK at Ser27, the activated SIRT1 in reverse aggravated JNK activation via upregulating ROS-related ASK1 signaling, thus forming a positive feedback between JNK and SIRT1. Taken together, SIRT1 activated by JNK contributed to DPT-induced human glioma cell parthanatos via initiation of NAD+ depletion-dependent upregulation of NOX2 and NAT10.
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Affiliation(s)
- Shi-Peng Liang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Xuan-Zhong Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Mei-Hua Piao
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, 130021, China
| | - Xi Chen
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Zhen-Chuan Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
| | - Yu-Bo Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Shan Lu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Chuan He
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Yan-Li Wang
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China
- Department of Obstetrics and Gynecology, First Hospital of Jilin University, Changchun, 130021, China
| | - Guang-Fan Chi
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, 130021, China
| | - Peng-Fei Ge
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, 130021, China.
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun, 130021, China.
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Wu F, Xia X, Lei T, Du H, Hua H, Liu W, Xu B, Yang T. Inhibition of SIRT1 promotes ultraviolet B induced cataract via downregulation of the KEAP1/NFE2L2 signaling pathway. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 245:112753. [PMID: 37437439 DOI: 10.1016/j.jphotobiol.2023.112753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/24/2023] [Accepted: 06/29/2023] [Indexed: 07/14/2023]
Abstract
Due to continuous exposure to ultraviolet B(UVB) radiation, eye lenses are constantly subjected to oxidative stress that induces lens epithelial cell (LEC) apoptosis, which has been associated with the inactivation of Sirtuin1 (SIRT1). It is well-established that NFE2L2 has a major protective effect on UVB-induced oxidative stress and damage. However, whether UVB radiation affects oxidative/antioxidative imbalance and damages LECs by inactivating the protective NFE2L2-mediated antioxidative stress pathway through inhibition of SIRT1 is unknown. In our research, we established in vivo and in vitro UVB exposure models in Sprague Dawley rats and SRA01/04 cells, respectively, to investigate the effect of UVB radiation on the NFE2L2/ KEAP1 pathway and the role of SIRT1 in this process. The in vivo findings revealed that UVB radiation exposure decreased Sirt1 and Nfe2l2 levels, upregulated Keap1 expression, led to an oxidative/antioxidative imbalance and increased LEC apoptosis in the eye lens. Sirt1 downregulated Keap1 expression levels, but activated Nfe2l2 and its downstream target proteins. The in vitro findings showed that UVB inhibited the deacetylation of SIRT1 target proteins and increased the acetylation levels of KEAP1 and NFE2L2. We also found that UVB radiation exposure led to a significant decrease in both co-localization levels and protein interaction between SIRT1 and KEAP1. In addition, the inhibition of SIRT1 increased KEAP1 levels, inhibited the activity of NFE2L2 and decreased co- localization levels and protein interactions between NFE2L2 and KEAP1. These results suggested that UVB radiation decreased SIRT1 levels and inhibited the KEAP1/NFE2L2 pathway, thereby reducing its antioxidant effect, which might be an important mechanism of UVB-induced cataract.
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Affiliation(s)
- Feiying Wu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China
| | - Xinyu Xia
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China
| | - Ting Lei
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China
| | - Huiying Du
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China
| | - Hui Hua
- The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China; Shanghai Key Laboratory of Embryo Original Disease, Shanghai 200030, China
| | - Wei Liu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China
| | - Bin Xu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China
| | - Tianyao Yang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning 110122, China.
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9
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Chen X, Yang J, Li M, Zhu S, Zhao M, Yang C, Liu B, Gao H, Lu A, Ge L, Mo L, Gu Z, Xu H. Fullerenol protects cornea from ultraviolet B exposure. Redox Biol 2022; 54:102360. [PMID: 35690049 PMCID: PMC9190064 DOI: 10.1016/j.redox.2022.102360] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/20/2022] [Accepted: 05/31/2022] [Indexed: 02/07/2023] Open
Abstract
The eyes are highly susceptible to the oxidative stress induced by ultraviolet B (UVB, wavelength between 280 ∼ 320 nm), which could cause severe damage to the cornea. Fullerenols are effective antioxidants to alleviate UVB-induced injury, while their application for the eyes is still rare. In present study, we investigated the protective performance and mechanism of fullerenols on cornea under UVB radiation in vivo and in vitro. The synthesized fullerenols exhibited broad-spectrum free radical scavenging properties (applicable to both reactive oxygen species (ROS) and reactive nitrogen species (RNS)) and photo-stability. When compared with another widely used antioxidant glutathione (GSH), the administration of fullerenols markedly decreased the injured area, corneal edema, cell death, and increased the cell proliferation in UVB-induced rat cornea. The effects of fullerenols were confirmed in UVB-exposed human corneal epithelial cells (hCECs), where elevated cell viability and proliferation, decreased oxidative free radical production, repaired mitochondrial dysfunction and DNA lesions were observed. RNA sequencing (RNA-Seq) analysis demonstrated that fullerenol alleviated UVB-induced corneal injury through down-regulation of oxidative stress-related genes and up-regulation of proliferation-associated genes. Our results demonstrate the suitability of fullerenols as a potential exogenous treatment in ameliorating UVB-induced cornea damage. Fullerenol produces significant precaution on UVB-induced corneal damage. Fullerenol exhibits broader spectrum free radical scavenging properties than GSH. Fullerenol mitigates the LSCs loss in the cornea caused by UVB. Fullerenol down-regulates oxidative stress genes and up-regulates proliferation-related genes.
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Zeng HF, Xu J, Wang XL, Li SJ, Han ZY. Nicotinamide mononucleotide alleviates heat stress-induced oxidative stress and apoptosis in BMECs through reducing mitochondrial damage and endoplasmic reticulum stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 235:113441. [PMID: 35358918 DOI: 10.1016/j.ecoenv.2022.113441] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/15/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Heat stress is directly correlated to mammary gland dysfunction in dairy cows, especially in summer. Abnormally high environmental temperature induces oxidative stress and apoptosis in bovine mammary epithelial cells (BMECs). Nicotinamide mononucleotide (NMN) has beneficial effects in maintaining the cellular physiological functions. In this study, we evaluate the protective effect of NMN on heat stress-induced apoptosis of BMECs and explore the potential underlying mechanisms. Our results showed that heat stress considerably decreased cell viability in BMECs, whereas pretreatment of BMECs with NMN (150 μM) for 24 h significantly alleviated the negative effects of heat stress on cells. NMN protected BMECs from heat stress-induced oxidative stress by inhibiting the excessive accumulation of reactive oxygen species (ROS) and increasing the activity of antioxidant enzymes. It also inhibited apoptosis by reducing the ratio of Bax/Bcl2 and blocking proteolytic the cleavage of Caspase-3 in heat stressed-BMECs. Importantly, NMN treatment could reduce mitochondrial damage through mediating the expression of mitochondrial fission and fusion-related genes, including Dynamin related protein 1 (Drp1), Mitochondrial fission 1 protein (Fis1), and Mitofusin1, 2 (MFN1, 2); and suppress endoplasmic reticulum stress through unfolded protein response regulator Glucose regulated protein 78 (GRP78), and downstream elements Recombinant activating transcription factor 4 (ATF4) and C/EBP homologous protein (CHOP). Above all, our results demonstrate that NMN supplemention attenuates heat stress-induced oxidative stress and apoptosis in BMECs by maintaining mitochondrial fission and fusion, and regulating endoplasmic reticulum stress, which provides the convincing evidence that NMN has valuable potential in alleviating mammary gland injury of dairy cows caused by environmental heat stress.
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Affiliation(s)
- Han-Fang Zeng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jie Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xin-Ling Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shu-Jie Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhao-Yu Han
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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11
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Pu Q, Guo XX, Hu JJ, Li AL, Li GG, Li XY. Nicotinamide mononucleotide increases cell viability and restores tight junctions in high-glucose-treated human corneal epithelial cells via the SIRT1/Nrf2/HO-1 pathway. Biomed Pharmacother 2022; 147:112659. [PMID: 35123232 DOI: 10.1016/j.biopha.2022.112659] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/06/2022] [Accepted: 01/18/2022] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Diabetes mellitus (DM)-related corneal epithelial dysfunction is a severe ocular disorder; however, the effects of nicotinamide mononucleotide (NMN) on high-glucose (HG)-treated human corneal epithelial cells (HCECs) remain unclear. METHODS We conducted an in-vitro study to examine the effects of NMN treatment on HG-treated HCECs. Cell viability was measured using trypan blue stain, mitochondrial membrane potential was measured using JC-1 stain, and intracellular reactive oxygen species and apoptosis assays were conducted using flow cytometry. Transepithelial electrical resistance (TEER) and zonula occludens-1 (ZO-1) immunofluorescence for tight junction examinations were conducted. Immunoblot analyses were conducted to analyze the expression of silent information regulator-1 (SIRT1), nuclear factor erythroid 2-related factor 2 (Nrf2), and heme oxygenase-1 (HO-1) of the SIRT1/Nrf2/HO-1 pathway. RESULTS NMN increased cell viability by reducing cell damage, reducing apoptosis, increasing cell migration, and restoring tight junctions in HG-treated HCECs. By analyzing the expressions of SIRT1, Nrf2, HO-1, NMN demonstrated protective effects via the SIRT1/Nrf2/HO-1 pathway. CONCLUSIONS NMN increases cell viability by reversing cell damage, reducing apoptosis, increasing cell migration, and restoring tight junctions in HG-treated HCECs, and these effects may be mediated by the SIRT1/Nrf2/HO-1 pathway.
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Affiliation(s)
- Qi Pu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Xiao-Xiao Guo
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Jing-Jie Hu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Ao-Ling Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Gui-Gang Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Xin-Yu Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China.
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12
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Wan Y, He B, Zhu D, Wang L, Huang R, Zhu J, Wang C, Gao F. Nicotinamide mononucleotide attenuates doxorubicin-induced cardiotoxicity by reducing oxidative stress, inflammation and apoptosis in rats. Arch Biochem Biophys 2021; 712:109050. [PMID: 34610336 DOI: 10.1016/j.abb.2021.109050] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/29/2021] [Accepted: 08/31/2021] [Indexed: 02/05/2023]
Abstract
Doxorubicin (DOX) is an effective and widely used antineoplastic drug. However, its clinical application is limited due to its dose-dependent cardiotoxicity. Great efforts have been made to explore the pathological mechanism of DOX-induced cardiotoxicity (DIC), but new drugs and strategies to alleviate cardiac damage are still needed. Here, we aimed to investigate the effect of nicotinamide mononucleotide (NMN) on DIC in rats. The results of the present study showed that DOX treatment significantly induced cardiac dysfunction and cardiac injury, whereas NMN alleviated these changes. In addition, NMN inhibited Dox-induced activation of nucleotide-binding domain-like receptor protein 3 (NLRP3) inflammasome-mediated inflammation, as evidenced by decreased caspase 1 and IL-1β activity. Moreover, NMN treatment increased glutathione (GSH) levels and superoxide dismutase (SOD) activity and decreased the levels of malondialdehyde (MDA) and reactive oxygen species (ROS) in DOX-treated rats. Furthermore, NMN treatment mitigated DOX-induced cardiomyocyte apoptosis and cardiac fibrosis. In conclusion, the results indicated that NMN protects against DIC in rats by inhibiting NLRP3 inflammasome activation, oxidative stress, and apoptosis.
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Affiliation(s)
- Yixuan Wan
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Bo He
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Dongyong Zhu
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Wang
- Molecular Imaging Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ruijue Huang
- Basic Medical School, Yunnan University of Chinese Medicine, Kunming, China
| | - Jing Zhu
- The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Chunhua Wang
- Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Radiation Oncology Key Laboratory of Sichuan Province, China
| | - Fabao Gao
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China.
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13
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Du E, Pu G, He S, Qin F, Wang Y, Wang G, Song Z, Zhang J, Tao Y. Cytoprotective Effects of Water Soluble Dihydropyrimidinthione Derivative Against UV-B Induced Human Corneal Epithelial Cell Photodamage. Front Pharmacol 2021; 12:732833. [PMID: 34744716 PMCID: PMC8570246 DOI: 10.3389/fphar.2021.732833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/29/2021] [Indexed: 11/22/2022] Open
Abstract
Excessive UV-B exposure is well known to be a risk factor for corneal phototoxicity including direct DNA damage and disturbances in the antioxidant balance. Here, we showed a successful synthesis of a water-soluble and biocompatible small molecule DHPM 1 with dihydropyrimidinthione skeleton, which could effectively protect human corneal epithelial (HCE-2) cells from UV-B damage. In separate experiments, DHPM 1 absorbed UV-B rays and exhibited scavenging activity against intracellular ROS induced by UV-B radiation, thereby reducing the levels of DNA fragmentation. Additionally, UV-B exposure increased the expression of cleaved caspase-3, as well as the ratio of Bax/Bcl-2 at protein levels, while pretreatment with DHPM 1 significantly reversed these changes. To the best of our knowledge, this is the first report of a study based on dihydropyrimidinthione derivatives to develop a promising eye drops, which may well find extensive applications in UV-B caused corneal damage.
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Affiliation(s)
- Enming Du
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Guojuan Pu
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Siyu He
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Fangyuan Qin
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yange Wang
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Gang Wang
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Zongming Song
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Junjie Zhang
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China
| | - Ye Tao
- Henan Eye Institute, Henan Eye Hospital, People's Hospital of Zhengzhou University, Henan University School of Medicine, Henan Provincial People's Hospital, Zhengzhou, China.,Lab of Visual Cell Differentiation and Modulation, Basic Medical College, Zhengzhou University, Zhengzhou, China
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14
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Zhou X, Du HH, Long X, Pan Y, Hu J, Yu J, Zhao X. β-Nicotinamide Mononucleotide (NMN) Administrated by Intraperitoneal Injection Mediates Protection Against UVB-Induced Skin Damage in Mice. J Inflamm Res 2021; 14:5165-5182. [PMID: 34675595 PMCID: PMC8504657 DOI: 10.2147/jir.s327329] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/29/2021] [Indexed: 12/27/2022] Open
Abstract
Objective Ultraviolet light is an important environmental factor that induces skin oxidation, inflammation, and other diseases. Nicotinamide mononucleotide (NMN) has the effect of anti-oxidation and improving various physiological processes. This study explores the protective effect of NMN monomers given via intraperitoneal injection on UVB-induced photodamage. Methods We used a murine model of UVB-induced photodamage to evaluate the effect of an NMN monomer on photoaging skin by assessing skin and liver tissue sections, serum and skin oxidative stress levels, inflammatory markers, mRNA expression, and protein expression of skin- and liver-related genes. Results The results showed that NMN treatment blocked UVB-induced photodamage in mice, maintaining normal structure and amount of collagen fibers, normal thickness of epidermis and dermis, reducing the production of mast cells, and maintaining complete organized skin structure. NMN intraperitoneal injection also maintained the normal morphology of the mouse liver after UVB exposure. Meanwhile, NMN intraperitoneal injection was found to increase antioxidant ability and regulate the proinflammatory response of the skin and liver to UVB irradiation by enhancing the activity of antioxidant enzymes, release of anti-inflammatory cytokines, reduction of hydrogen peroxide production (H2O2), and decreased inflammatory cytokines. Furthermore, RT-qPCR results indicated that NMN reduced oxidative stress of skin and liver by promoting the activation of the AMP-activated protein kinase (AMPK) signaling pathway and further increasing the expression of downstream antioxidant genes of AMPK. RT-qPCR results also revealed that NMN treatment could downregulate the mRNA expression of interleukin (IL)-6, interleukin (IL)-1β, and tumor necrosis factor (TNF)-α, and upregulate NF-kappa-B inhibitor-α (IκB-α) and interleukin (IL)-10 by inhibiting the activation of nuclear factor-κBp65 (NFκB-p65). Finally, NMN upregulated AMPK, IκB-α, SOD1, and CAT in the skin and downregulated NF-κBp65 protein expression, which is in line with the RT-qPCR results. Conclusion Based on the above results, NMN monomer treatment with intraperitoneal injection also block the photodamage caused by UVB irradiation in mice by regulating the oxidative stress response and inflammatory response.
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Affiliation(s)
- Xianrong Zhou
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan, South Korea
| | - Hang-Hang Du
- Department of Plastic Surgery, Chongqing Huamei Plastic Surgery Hospital, Chongqing, People's Republic of China
| | - Xingyao Long
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China
| | - Yanni Pan
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China
| | - Jian Hu
- R&D Department, Effepharm (Shanghai) Co., Ltd, Shanghai, People's Republic of China
| | - Jianjun Yu
- R&D Department, Effepharm (Shanghai) Co., Ltd, Shanghai, People's Republic of China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, People's Republic of China
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15
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Park S, Leonard BC, Raghunathan VK, Kim S, Li JY, Mannis MJ, Murphy CJ, Thomasy SM. Animal models of corneal endothelial dysfunction to facilitate development of novel therapies. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1271. [PMID: 34532408 PMCID: PMC8421955 DOI: 10.21037/atm-20-4389] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022]
Abstract
Progressive corneal endothelial disease eventually leads to corneal edema and vision loss due to the limited regenerative capacity of the corneal endothelium in vivo and is a major indication for corneal transplantation. Despite the relatively high success rate of corneal transplantation, there remains a pressing global clinical need to identify improved therapeutic strategies to address this debilitating condition. To evaluate the safety and efficacy of novel therapeutics, there is a growing demand for pre-clinical animal models of corneal endothelial dysfunction. In this review, experimentally induced, spontaneously occurring and genetically modified animal models of corneal endothelial dysfunction are described to assist researchers in making informed decisions regarding the selection of the most appropriate animal models to meet their research goals.
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Affiliation(s)
- Sangwan Park
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA
| | - Brian C Leonard
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA
| | - Vijay Krishna Raghunathan
- The Ocular Surface Institute, College of Optometry, University of Houston, Houston, TX, USA.,Department of Basic Sciences, University of Houston, Houston, TX, USA.,Department of Biomedical Engineering, Cullen College of Engineering, University of Houston, Houston, TX, USA
| | - Soohyun Kim
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA
| | - Jennifer Y Li
- Department of Ophthalmology & Vision Science, School of Medicine, University of California Davis, Davis, CA, USA
| | - Mark J Mannis
- Department of Ophthalmology & Vision Science, School of Medicine, University of California Davis, Davis, CA, USA
| | - Christopher J Murphy
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA.,Department of Ophthalmology & Vision Science, School of Medicine, University of California Davis, Davis, CA, USA
| | - Sara M Thomasy
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA.,Department of Ophthalmology & Vision Science, School of Medicine, University of California Davis, Davis, CA, USA
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16
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Zhou K, Tian KJ, Yan BJ, Gui DD, Luo W, Ren Z, Wei DH, Liu LS, Jiang ZS. A promising field: regulating imbalance of EndMT in cardiovascular diseases. Cell Cycle 2021; 20:1477-1486. [PMID: 34266366 DOI: 10.1080/15384101.2021.1951939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Endothelial-mesenchymal transition (EndMT) is widely involved in the occurrence and development of cardiovascular diseases. Although there is no direct evidence, it is very promising as an effective target for the treatment of these diseases. Endothelial cells need to respond to the complex cardiovascular environment through EndMT, but sustained stimuli will cause the imbalance of EndMT. Blocking the signal transduction promoting EndMT is an effective method to control the imbalance of EndMT. In particular, we also discussed the potential role of endothelial cell apoptosis and autophagy in regulating the imbalance of EndMT. In addition, promoting mesenchymal-endothelial transformation (MEndT) is also a method to control the imbalance of EndMT. However, targeting EndMT to treat cardiovascular disease still faces many challenges. By reviewing the research progress of EndMT, we have put forward some insights and translated them into challenges and opportunities for new treatment strategies for cardiovascular diseases.
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Affiliation(s)
- Kun Zhou
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Kai-Jiang Tian
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Bin-Jie Yan
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Dan-Dan Gui
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Wen Luo
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Zhong Ren
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Dang-Heng Wei
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Lu-Shan Liu
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
| | - Zhi-Sheng Jiang
- Key Laboratory for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang, Hunan Province, China
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17
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Pîrvu AS, Andrei AM, Stănciulescu EC, Baniță IM, Pisoschi CG, Jurja S, Ciuluvica R. NAD + metabolism and retinal degeneration (Review). Exp Ther Med 2021; 22:670. [PMID: 33986835 PMCID: PMC8111861 DOI: 10.3892/etm.2021.10102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/16/2021] [Indexed: 12/22/2022] Open
Abstract
The recent years has revealed an intense interest in the study of nicotinamide adenine dinucleotide (NAD+), particularly in regards to its intermediates, such as nicotinamide and nicotinic acid known as niacin, and also nicotinamide riboside. Besides its participation as a coenzyme in the redox transformations of nutrients during catabolism, NAD+ is also involved in DNA repair and epigenetic modification of gene expression and also plays an essential role in calcium homeostasis. Clinical and experimental data emphasize the age-dependent decline in NAD+ levels and its relation with the onset and progression of various age-related diseases. Maintaining optimal levels of NAD+ has aroused a therapeutic interest in such pathological conditions; NAD+ being currently regarded as an important target to extend health and lifespan. Based on a systematic exploration of the experimental data and literature surrounding the topic, this paper reviews some of the recent research studies related to the roles of the pyridine nucleotide family focusing on biosynthesis, NAD+ deficiency-associated diseases, pathobiochemistry related to retinal degeneration and potential therapeutic effects on human vision as well.
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Affiliation(s)
- Andreea Silvia Pîrvu
- Department of Biochemistry, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ana Marina Andrei
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Elena Camelia Stănciulescu
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ileana Monica Baniță
- Department of Histology, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Cătălina Gabriela Pisoschi
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Sanda Jurja
- Department of Ophthalmology, Faculty of Medicine, ‘Ovidius’ University of Constanta, 900527 Constanta, Romania
| | - Radu Ciuluvica
- Faculty of Dentistry, ‘Carol Davila’ University of Medicine and Pharmacy, 050474 Bucharest, Romania
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18
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Zhou X, Du HH, Ni L, Ran J, Hu J, Yu J, Zhao X. Nicotinamide Mononucleotide Combined With Lactobacillus fermentum TKSN041 Reduces the Photoaging Damage in Murine Skin by Activating AMPK Signaling Pathway. Front Pharmacol 2021; 12:643089. [PMID: 33841160 PMCID: PMC8027253 DOI: 10.3389/fphar.2021.643089] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/15/2021] [Indexed: 12/14/2022] Open
Abstract
Long-term exposure to UVB (280-320 nm) can cause oxidative skin damage, inflammatory injury, and skin cancer. Research on nicotinamide mononucleotide (NMN) and lactic acid bacteria (LAB) with regard to antioxidation, anti-inflammation, and prevention of other age-related diseases has received increasing attention. In the present study, the in vitro antioxidant analysis showed that NMN combined with Lactobacillus fermentum TKSN041 (L. fermentum TKSN041) has a high scavenging ability on hydroxyl (OH), 2, 2'-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) diammonium salt (ABTS) and 1, 1-diphenyl-2-picrylhydrazyl (DPPH), and it also possess a good total antioxidant capacity. The animal experimental results show that NMN combined with LAB maintained normal liver morphology of mice and reduced pathological damage to murine skin. NMN combined with LAB significantly increased the serum levels of total superoxide dismutase (T-SOD), catalase (CAT), and interleukin (IL)-10, but reduced the levels of malondialdehyde, advanced glycation end products, tumor necrosis factor (TNF)-α, and IL-6. NMN combined with LAB increased T-SOD, CAT, IL-10, Na+-K+-ATPase, and NAD+ levels in the skin, but reduced TNF-α level in the skin. NMN combined with LAB increased the mRNA expression levels of SOD1, CAT, glutathione (GSH), inhibitor of NF-κB (IκB-α), IL-10, AMP-activated protein kinase (AMPK), adaptor protein, phosphotyros ineinteraction, PH domain and leucine zipper containing 1 (APPL1), peroxisome proliferator-activated receptor γ co-activator-1α (PGC-1α), and forkhead transcription factor O (FOXO) in the skin and liver, but decreased the mRNA expression levels of nuclear factor (NF)-κBp65, TNF-α, IL-6, and rapamycin target protein (mTOR). NMN combined with LAB increased the protein expression levels of AMPK, IκB-α, SOD1, and CAT in the skin tissues and reduced protein expression of NF-κBp65. NMN combined with L. fermentum TKSN041 improved murine skin damage caused by UVB irradiation, and the protective mechanism may be related to activation of the AMPK signaling pathway. The results of this study are expected to provide a reference for preventing and the treating skin photoaging.
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Affiliation(s)
- Xianrong Zhou
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Hang-Hang Du
- Department of Plastic Surgery, Chongqing Huamei Plastic Surgery Hospital, Chongqing, China
| | - Luyao Ni
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China
| | - Jie Ran
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China
| | - Jian Hu
- Effepharm (Shanghai) Co., Ltd., Shanghai, China
| | - Jianjun Yu
- Effepharm (Shanghai) Co., Ltd., Shanghai, China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
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19
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Meng YF, Pu Q, Dai SY, Ma Q, Li X, Zhu W. Nicotinamide Mononucleotide Alleviates Hyperosmolarity-Induced IL-17a Secretion and Macrophage Activation in Corneal Epithelial Cells/Macrophage Co-Culture System. J Inflamm Res 2021; 14:479-493. [PMID: 33658825 PMCID: PMC7917392 DOI: 10.2147/jir.s292764] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/27/2021] [Indexed: 01/06/2023] Open
Abstract
Background Hyperosmosis stress (HS) was a key pathological factor in the development of dry eye disease (DED). Nicotinamide mononucleotide (NMN) demonstrated protective effects in the corneal damage, however, its role in the HS-induced DED remained unclear. Methods A NaCl based HS in-vitro model (500 mOsm) was generated and used in a co-culture system including corneal epithelial cells (CEC) and macrophage cell line RAW264.7. The effect of NMN on NAD+ metabolism and the expression of HS biomarker, tonicity-responsive element binding protein (TonEBP), was studied in the CEC. The cellular activity, including cell viability, apoptosis status and lactate dehydrogenase (LDH) release through trypan blue staining, flow cytometry and LDH assay, respectively. The mitochondrial membrane potential (MMP) assay would be conducted using the JC1 kit. The expression of IL-17a were detected using RT-PCR, ELISA and Western blot. After co-culture with the CEC in different group for 24 h, the phagocytosis ability and macrophage polarization were assessed in RAW264.7 cells co-cultured with CEC with or without HS or NMN treatment. Besides, the involvement of Notch pathway in the RAW264.7 would be analyzed. The potential involvement of Sirtuin 1 (SIRT1) and IL-17a in the crosstalk between CEC and macrophage was studied with SIRT1 inhibitor EX 527 and anti-IL-17a monoclonal antibody, respectively. Results NMN treatment increased NAD+ concentration and thus improved cell viability, reduced apoptotic rate and decreased the LDH release in HS-treated CEC. Besides, NMN alleviated HS-induced MMP, intracellular ROS and LDH release. Besides, it was confirmed NMN improve SIRT1 function and decreased the HS related IL-17a expression in CEC and then alleviated macrophage phagocytosis ability and M1 polarization based on a CEC-macrophage co-culture system. Moreover, NMN treatment of CEC in the CEC could moderate the subsequent macrophage activation through Notch pathway. SIRT1 activation and IL-17a inhibition was regarded as key progress in the function of NMN based on the application of EX 527 and anti-IL-17a antibody in the CEC-macrophage co-culture system. Conclusion The findings demonstrated that NMN could alleviated HS-induced DED status through regulating the CEC/macrophage interaction. Our data pointed to the role of SIRT1, IL-17a and Notch pathway in the function of NMN and then provided updated knowledge of potential NMN application in the management of DED.
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Affiliation(s)
- Yi-Fang Meng
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.,Department of Ophthalmology, Changshu No. 2 People's Hospital, Changshu, People's Republic of China
| | - Qi Pu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - San-You Dai
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, People's Republic of China
| | - Qian Ma
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xinyu Li
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Wei Zhu
- Department of Ophthalmology, Changshu No. 2 People's Hospital, Changshu, People's Republic of China
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20
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Maiese K. Nicotinamide as a Foundation for Treating Neurodegenerative Disease and Metabolic Disorders. Curr Neurovasc Res 2021; 18:134-149. [PMID: 33397266 PMCID: PMC8254823 DOI: 10.2174/1567202617999210104220334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023]
Abstract
Neurodegenerative disorders impact more than one billion individuals worldwide and are intimately tied to metabolic disease that can affect another nine hundred individuals throughout the globe. Nicotinamide is a critical agent that may offer fruitful prospects for neurodegenerative diseases and metabolic disorders, such as diabetes mellitus. Nicotinamide protects against multiple toxic environments that include reactive oxygen species exposure, anoxia, excitotoxicity, ethanolinduced neuronal injury, amyloid (Aß) toxicity, age-related vascular disease, mitochondrial dysfunction, insulin resistance, excess lactate production, and loss of glucose homeostasis with pancreatic β-cell dysfunction. However, nicotinamide offers cellular protection in a specific concentration range, with dosing outside of this range leading to detrimental effects. The underlying biological pathways of nicotinamide that involve the silent mating type information regulation 2 homolog 1 (Saccharomyces cerevisiae) (SIRT1), the mechanistic target of rapamycin (mTOR), AMP activated protein kinase (AMPK), and mammalian forkhead transcription factors (FoxOs) may offer insight for the clinical translation of nicotinamide into a safe and efficacious therapy through the modulation of oxidative stress, apoptosis, and autophagy. Nicotinamide is a highly promising target for the development of innovative strategies for neurodegenerative disorders and metabolic disease, but the benefits of this foundation depend greatly on gaining a further understanding of nicotinamide's complex biology.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, New York 10022
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21
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Meng YR, Zhang D, Zou X, Ma F, Kang Q, Zhang CY. A trifunctional split dumbbell probe coupled with ligation-triggered isothermal rolling circle amplification for label-free and sensitive detection of nicotinamide adenine dinucleotide. Talanta 2020; 224:121962. [PMID: 33379129 DOI: 10.1016/j.talanta.2020.121962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/17/2020] [Accepted: 11/30/2020] [Indexed: 11/15/2022]
Abstract
The nicotinamide adenine dinucleotide (NAD+) is an important small biomolecule that participates in a variety of physiological functions, and it has been regarded as a potential biomarker for disease diagnosis and a promising target for disease treatment. The conventional methods for NAD+ assay often suffer from complicated procedures, expensive labeling, poor selectivity, and unsatisfactory sensitivity. Herein, we develop a label-free and sensitive method for NAD+ assay based on the integration of a trifunctional split dumbbell probe with ligation-triggered isothermal rolling circle amplification (RCA). We design a trifunctional split dumbbell probe that can act as a probe for NAD+ recognition, a template for RCA reaction, and a substrate for SYBR Green I binding. In the presence of target NAD+, it can serve as a cofactor to active E. coli DNA ligase which subsequently catalyzes the ligation of split dumbbell probe to form a circular template for RCA reaction, generating numerous dumbbell probe amplicons which can be easily and label-free monitored by using SYBR Green I as the fluorescent indicator. Due to the high fidelity of NAD+-dependent ligation and high amplification efficiency of RCA amplification, this method exhibits high sensitivity with a detection limit of 85.6 fM and good selectivity with the capability of discriminating target NAD+ from its analogs. Moreover, this method can be applied for accurate and sensitive detection of NAD+ in complex biological samples and cancer cells, holding great potential in NAD+-related biological researches and clinical diagnosis.
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Affiliation(s)
- Ya-Ru Meng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China
| | - Dandan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China
| | - Xiaoran Zou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China
| | - Fei Ma
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China.
| | - Qi Kang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China.
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China.
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22
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Zhao C, Zhou Q, Duan H, Wang X, Jia Y, Gong Y, Li W, Dong C, Li Z, Shi W. Laminin 511 Precoating Promotes the Functional Recovery of Transplanted Corneal Endothelial Cells. Tissue Eng Part A 2020; 26:1158-1168. [PMID: 32495687 DOI: 10.1089/ten.tea.2020.0047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Corneal endothelial dysfunction is a major cause of corneal blindness and is mainly treated by corneal transplantation. However, the global shortage of donor cornea hampers its application. Intracameral injection of cultured primary corneal endothelial cells (CECs) was recently confirmed in clinical trials. However, abnormal adhesion of the grafted CECs affects the application of this strategy. In this study, we explored if laminin 511 (LN511) improves the therapeutic function of the intracameral CEC injection for corneal endothelial dysfunction. To mimic the late stage of corneal endothelial diseases, intense scraping was developed to remove CECs and extracellular matrix of the posterior Descemet's membrane (DM) without DM removal in rabbits. Then, Dulbecco's phosphate-buffered saline (DPBS) and LN511 were intracamerally injected as the control and intervention groups, respectively. We found that the injected LN511 could settle and form a coating on the posterior surface of DM. After CEC transplantation, corneal clarity of rabbits in the LN511 group was rapidly recovered within 7 days, whereas the corneal recovery took 14 days in the DPBS group. Corneal thickness of LN511 group decreased to 413.3 ± 20.8 μm 7 days after operation, which was significantly lower than 1086.3 ± 78.6 μm of DPBS group (p < 0.01). Moreover, for the grafted CECs, LN511 promoted the rapid adhesion, tight junction formation, and expression of Na+/K+-ATPase and ZO-1. In vitro analysis revealed that the functions of LN511 on the cultured human CECs mechanistically depended on the cell density and the nuclear-cytoplasmic translocation of the Yes-associated protein. Our study demonstrated that LN511 precoating promoted the adhesion of the transplanted CECs and enhanced the functional regeneration of the corneal endothelium. Thus, our data suggested that the strategy of LN511 precoating and CECs' intracameral injection could be a potential method for the therapy of corneal endothelial dysfunction. Impact statement Intracameral injection of cultured corneal endothelial cells (CECs) is a potential alternative therapy for corneal endothelial dysfunction and has been proven to be effective in clinical trials. However, abnormal adhesion of the grafted CECs affects its application. In this study, intense scraping was developed to remove CECs and extracellular matrix of the posterior Descemet's membrane (DM) without DM removal for the therapy of late stage of corneal endothelial diseases. Laminin 511 was intracamerally injected to form a coating, improve the posterior DM, enhance the adhesion of the grafted CECs, and promote the functional regeneration of CEC transplantation through Yes-associated protein signaling.
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Affiliation(s)
- Can Zhao
- Department of Medicine, Qingdao University, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Qingjun Zhou
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Haoyun Duan
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Xin Wang
- Department of Medicine, Qingdao University, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Yanni Jia
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China.,Eye Hospital of Shandong First Medical University, Shandong Eye Hospital, Jinan, China
| | - Yajie Gong
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Wenjing Li
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Chunxiao Dong
- Department of Medicine, Qingdao University, Qingdao, China.,Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Zongyi Li
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China
| | - Weiyun Shi
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.,State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, China.,Eye Hospital of Shandong First Medical University, Shandong Eye Hospital, Jinan, China
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23
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Maiese K. New Insights for nicotinamide: Metabolic disease, autophagy, and mTOR. Front Biosci (Landmark Ed) 2020; 25:1925-1973. [PMID: 32472766 DOI: 10.2741/4886] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metabolic disorders, such as diabetes mellitus (DM), are increasingly becoming significant risk factors for the health of the global population and consume substantial portions of the gross domestic product of all nations. Although conventional therapies that include early diagnosis, nutritional modification of diet, and pharmacological treatments may limit disease progression, tight serum glucose control cannot prevent the onset of future disease complications. With these concerns, novel strategies for the treatment of metabolic disorders that involve the vitamin nicotinamide, the mechanistic target of rapamycin (mTOR), mTOR Complex 1 (mTORC1), mTOR Complex 2 (mTORC2), AMP activated protein kinase (AMPK), and the cellular pathways of autophagy and apoptosis offer exceptional promise to provide new avenues of treatment. Oversight of these pathways can promote cellular energy homeostasis, maintain mitochondrial function, improve glucose utilization, and preserve pancreatic beta-cell function. Yet, the interplay among mTOR, AMPK, and autophagy pathways can be complex and affect desired clinical outcomes, necessitating further investigations to provide efficacious treatment strategies for metabolic dysfunction and DM.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, New York 10022,
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24
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Hong W, Mo F, Zhang Z, Huang M, Wei X. Nicotinamide Mononucleotide: A Promising Molecule for Therapy of Diverse Diseases by Targeting NAD+ Metabolism. Front Cell Dev Biol 2020; 8:246. [PMID: 32411700 PMCID: PMC7198709 DOI: 10.3389/fcell.2020.00246] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 03/24/2020] [Indexed: 02/05/2023] Open
Abstract
NAD+, a co-enzyme involved in a great deal of biochemical reactions, has been found to be a network node of diverse biological processes. In mammalian cells, NAD+ is synthetized, predominantly through NMN, to replenish the consumption by NADase participating in physiologic processes including DNA repair, metabolism, and cell death. Correspondingly, aberrant NAD+ metabolism is observed in many diseases. In this review, we discuss how the homeostasis of NAD+ is maintained in healthy condition and provide several age-related pathological examples related with NAD+ unbalance. The sirtuins family, whose functions are NAD-dependent, is also reviewed. Administration of NMN surprisingly demonstrated amelioration of the pathological conditions in some age-related disease mouse models. Further clinical trials have been launched to investigate the safety and benefits of NMN. The NAD+ production and consumption pathways including NMN are essential for more precise understanding and therapy of age-related pathological processes such as diabetes, ischemia–reperfusion injury, heart failure, Alzheimer’s disease, and retinal degeneration.
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Affiliation(s)
- Weiqi Hong
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Fei Mo
- West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Department of Biotherapy, Chengdu, China
| | - Ziqi Zhang
- West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Department of Biotherapy, Chengdu, China
| | - Mengyuan Huang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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25
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Maiese K. Nicotinamide: Oversight of Metabolic Dysfunction Through SIRT1, mTOR, and Clock Genes. Curr Neurovasc Res 2020; 17:765-783. [PMID: 33183203 PMCID: PMC7914159 DOI: 10.2174/1567202617999201111195232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 12/13/2022]
Abstract
Metabolic disorders that include diabetes mellitus present significant challenges for maintaining the welfare of the global population. Metabolic diseases impact all systems of the body and despite current therapies that offer some protection through tight serum glucose control, ultimately such treatments cannot block the progression of disability and death realized with metabolic disorders. As a result, novel therapeutic avenues are critical for further development to address these concerns. An innovative strategy involves the vitamin nicotinamide and the pathways associated with the silent mating type information regulation 2 homolog 1 (Saccharomyces cerevisiae) (SIRT1), the mechanistic target of rapamycin (mTOR), mTOR Complex 1 (mTORC1), mTOR Complex 2 (mTORC2), AMP activated protein kinase (AMPK), and clock genes. Nicotinamide maintains an intimate relationship with these pathways to oversee metabolic disease and improve glucose utilization, limit mitochondrial dysfunction, block oxidative stress, potentially function as antiviral therapy, and foster cellular survival through mechanisms involving autophagy. However, the pathways of nicotinamide, SIRT1, mTOR, AMPK, and clock genes are complex and involve feedback pathways as well as trophic factors such as erythropoietin that require a careful balance to ensure metabolic homeostasis. Future work is warranted to gain additional insight into these vital pathways that can oversee both normal metabolic physiology and metabolic disease.
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Affiliation(s)
- Kenneth Maiese
- Cellular and Molecular Signaling, New York, New York 10022
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