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Sun X, Zhou D, Sun Y, Zhao Y, Deng Y, Pang X, Liu Q, Zhou Z. Oxidative stress reprograms the transcriptional coactivator Yki to suppress cell proliferation. Cell Rep 2024; 43:114584. [PMID: 39106181 DOI: 10.1016/j.celrep.2024.114584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 07/17/2024] [Accepted: 07/19/2024] [Indexed: 08/09/2024] Open
Abstract
The transcriptional coactivator Yorkie (Yki) regulates organ size by promoting cell proliferation. It is unclear how cells control Yki activity when exposed to harmful stimuli such as oxidative stress. In this study, we show that oxidative stress inhibits the binding of Yki to Scalloped (Sd) but promotes the interaction of Yki with another transcription factor, forkhead box O (Foxo), ultimately leading to a halt in cell proliferation. Mechanistically, Foxo normally exhibits a low binding affinity for Yki, allowing Yki to form a complex with Sd and activate proliferative genes. Under oxidative stress, Usp7 deubiquitinates Foxo to promote its interaction with Yki, thereby activating the expression of proliferation suppressors. Finally, we show that Yki is essential for Drosophila survival under oxidative stress. In summary, these findings suggest that oxidative stress reprograms Yki from a proliferation-promoting factor to a proliferation suppressor, forming a self-protective mechanism.
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Affiliation(s)
- Xiaohan Sun
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China; School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, China
| | - Dafa Zhou
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China
| | - Yuanfei Sun
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China
| | - Yunhe Zhao
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China
| | - Yanran Deng
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China
| | - Xiaolin Pang
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China
| | - Qingxin Liu
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China
| | - Zizhang Zhou
- Key Laboratory of Biodiversity Conservation and Bioresource Utilization of Jiangxi Province, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China; College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China.
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2
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Huber K, Giralt A, Dreos R, Michenthaler H, Geller S, Barquissau V, Ziegler DV, Tavernari D, Gallart-Ayala H, Krajina K, Jonas K, Ciriello G, Ivanisevic J, Prokesch A, Pichler M, Fajas L. E2F transcription factor-1 modulates expression of glutamine metabolic genes in mouse embryonic fibroblasts and uterine sarcoma cells. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119721. [PMID: 38580088 DOI: 10.1016/j.bbamcr.2024.119721] [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: 10/27/2023] [Revised: 03/12/2024] [Accepted: 03/27/2024] [Indexed: 04/07/2024]
Abstract
Metabolic reprogramming is considered as a hallmark of cancer and is clinically exploited as a novel target for therapy. The E2F transcription factor-1 (E2F1) regulates various cellular processes, including proliferative and metabolic pathways, and acts, depending on the cellular and molecular context, as an oncogene or tumor suppressor. The latter is evident by the observation that E2f1-knockout mice develop spontaneous tumors, including uterine sarcomas. This dual role warrants a detailed investigation of how E2F1 loss impacts metabolic pathways related to cancer progression. Our data indicate that E2F1 binds to the promoter of several glutamine metabolism-related genes. Interestingly, the expression of genes in the glutamine metabolic pathway were increased in mouse embryonic fibroblasts (MEFs) lacking E2F1. In addition, we confirm that E2f1-/- MEFs are more efficient in metabolizing glutamine and producing glutamine-derived precursors for proliferation. Mechanistically, we observe a co-occupancy of E2F1 and MYC on glutamine metabolic promoters, increased MYC binding after E2F1 depletion and that silencing of MYC decreased the expression of glutamine-related genes in E2f1-/- MEFs. Analyses of transcriptomic profiles in 29 different human cancers identified uterine sarcoma that showed a negative correlation between E2F1 and glutamine metabolic genes. CRISPR/Cas9 knockout of E2F1 in the uterine sarcoma cell line SK-UT-1 confirmed elevated glutamine metabolic gene expression, increased proliferation and increased MYC binding to glutamine-related promoters upon E2F1 loss. Together, our data suggest a crucial role of E2F1 in energy metabolism and metabolic adaptation in uterine sarcoma cells.
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Affiliation(s)
- Katharina Huber
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland; Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Albert Giralt
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - René Dreos
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Helene Michenthaler
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Sarah Geller
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Valentin Barquissau
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Dorian V Ziegler
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Daniele Tavernari
- Department of Computational Biology, University of Lausanne, Lausanne, Switzerland; Swiss Cancer Center Léman, Lausanne, Switzerland; Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Hector Gallart-Ayala
- Metabolomics Unit, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Katarina Krajina
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Katharina Jonas
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Giovanni Ciriello
- Department of Computational Biology, University of Lausanne, Lausanne, Switzerland; Swiss Cancer Center Léman, Lausanne, Switzerland; Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Julijana Ivanisevic
- Metabolomics Unit, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Andreas Prokesch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria
| | - Martin Pichler
- Division of Oncology, Department of Internal Medicine, Medical University of Graz, Graz, Austria; Translational Oncology, II. Med. Clinics, University Hospital of Augsburg, Augsburg, Germany
| | - Lluis Fajas
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland.
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3
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Braunger JM, Cammarata LV, Sornapudi TR, Uhler C, Shivashankar GV. Transcriptional changes are tightly coupled to chromatin reorganization during cellular aging. Aging Cell 2024; 23:e14056. [PMID: 38062919 PMCID: PMC10928569 DOI: 10.1111/acel.14056] [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: 08/15/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 12/30/2023] Open
Abstract
Human life expectancy is constantly increasing and aging has become a major risk factor for many diseases, although the underlying gene regulatory mechanisms are still unclear. Using transcriptomic and chromosomal conformation capture (Hi-C) data from human skin fibroblasts from individuals across different age groups, we identified a tight coupling between the changes in co-regulation and co-localization of genes. We obtained transcription factors, cofactors, and chromatin regulators that could drive the cellular aging process by developing a time-course prize-collecting Steiner tree algorithm. In particular, by combining RNA-Seq data from different age groups and protein-protein interaction data we determined the key transcription regulators and gene regulatory changes at different life stage transitions. We then mapped these transcription regulators to the 3D reorganization of chromatin in young and old skin fibroblasts. Collectively, we identified key transcription regulators whose target genes are spatially rearranged and correlate with changes in their expression, thereby providing potential targets for reverting cellular aging.
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Affiliation(s)
- Jana M. Braunger
- Eric and Wendy Schmidt CenterBroad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | - Louis V. Cammarata
- Eric and Wendy Schmidt CenterBroad Institute of MIT and HarvardCambridgeMassachusettsUSA
- Department of StatisticsHarvard UniversityCambridgeMassachusettsUSA
| | | | - Caroline Uhler
- Eric and Wendy Schmidt CenterBroad Institute of MIT and HarvardCambridgeMassachusettsUSA
- Laboratory for Information and Decision SystemsMassachusetts Institute of TechnologyCambridgeMassachusettsUSA
| | - G. V. Shivashankar
- Division of Biology and ChemistryPaul Scherrer InstituteVilligenSwitzerland
- Department of Health Sciences and TechnologyETH ZurichZurichSwitzerland
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4
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Kang T, Moore EC, Kopania EEK, King CD, Schilling B, Campisi J, Good JM, Brem RB. A natural variation-based screen in mouse cells reveals USF2 as a regulator of the DNA damage response and cellular senescence. G3 (BETHESDA, MD.) 2023; 13:jkad091. [PMID: 37097016 PMCID: PMC10320765 DOI: 10.1093/g3journal/jkad091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/26/2023]
Abstract
Cellular senescence is a program of cell cycle arrest, apoptosis resistance, and cytokine release induced by stress exposure in metazoan cells. Landmark studies in laboratory mice have characterized a number of master senescence regulators, including p16INK4a, p21, NF-κB, p53, and C/EBPβ. To discover other molecular players in senescence, we developed a screening approach to harness the evolutionary divergence between mouse species. We found that primary cells from the Mediterranean mouse Mus spretus, when treated with DNA damage to induce senescence, produced less cytokine and had less-active lysosomes than cells from laboratory Mus musculus. We used allele-specific expression profiling to catalog senescence-dependent cis-regulatory variation between the species at thousands of genes. We then tested for correlation between these expression changes and interspecies sequence variants in the binding sites of transcription factors. Among the emergent candidate senescence regulators, we chose a little-studied cell cycle factor, upstream stimulatory factor 2 (USF2), for molecular validation. In acute irradiation experiments, cells lacking USF2 had compromised DNA damage repair and response. Longer-term senescent cultures without USF2 mounted an exaggerated senescence regulatory program-shutting down cell cycle and DNA repair pathways, and turning up cytokine expression, more avidly than wild-type. We interpret these findings under a model of pro-repair, anti-senescence regulatory function by USF2. Our study affords new insights into the mechanisms by which cells commit to senescence, and serves as a validated proof of concept for natural variation-based regulator screens.
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Affiliation(s)
- Taekyu Kang
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - Emily C Moore
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA
| | - Emily E K Kopania
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA
| | | | | | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Jeffrey M Good
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA
| | - Rachel B Brem
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
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5
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Daks A, Shuvalov O, Fedorova O, Parfenyev S, Simon HU, Barlev NA. Methyltransferase Set7/9 as a Multifaceted Regulator of ROS Response. Int J Biol Sci 2023; 19:2304-2318. [PMID: 37215983 PMCID: PMC10197882 DOI: 10.7150/ijbs.83158] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/13/2023] [Indexed: 05/24/2023] Open
Abstract
Reactive oxygen species (ROS) induce multiple signaling cascades in the cell and hence play an important role in the regulation of the cell's fate. ROS can cause irreversible damage to DNA and proteins resulting in cell death. Therefore, finely tuned regulatory mechanisms exist in evolutionarily diverse organisms that are aimed at the neutralization of ROS and its consequences with respect to cellular damage. The SET domain-containing lysine methyltransferase Set7/9 (KMT7, SETD7, SET7, SET9) post-translationally modifies several histones and non-histone proteins via monomethylation of the target lysines in a sequence-specific manner. In cellulo, the Set7/9-directed covalent modification of its substrates affects gene expression, cell cycle, energy metabolism, apoptosis, ROS, and DNA damage response. However, the in vivo role of Set7/9 remains enigmatic. In this review, we summarize the currently available information regarding the role of methyltransferase Set7/9 in the regulation of ROS-inducible molecular cascades in response to oxidative stress. We also highlight the in vivo importance of Set7/9 in ROS-related diseases.
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Affiliation(s)
- Alexandra Daks
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Oleg Shuvalov
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Olga Fedorova
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Sergey Parfenyev
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Hans-Uwe Simon
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008, Kazan, Russian Federation
- Institute of Pharmacology, University of Bern, 3010, Bern, Switzerland
| | - Nickolai A. Barlev
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008, Kazan, Russian Federation
- School of Medicine, Nazarbayev University, 010000, Astana, Kazakhstan
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6
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Golubev DA, Zemskaya NV, Gorbunova AA, Kukuman DV, Moskalev A, Shaposhnikov MV. Studying the Geroprotective Properties of YAP/TAZ Signaling Inhibitors on Drosophila melanogaster Model. Int J Mol Sci 2023; 24:ijms24066006. [PMID: 36983079 PMCID: PMC10058302 DOI: 10.3390/ijms24066006] [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: 12/01/2022] [Revised: 02/28/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
The transcriptional coactivators Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are the main downstream effectors of the evolutionarily conserved Hippo signaling pathway. YAP/TAZ are implicated in the transcriptional regulation of target genes that are involved in a wide range of key biological processes affecting tissue homeostasis and play dual roles in the aging process, depending on the cellular and tissue context. The aim of the present study was to investigate whether pharmacological inhibitors of Yap/Taz increase the lifespan of Drosophila melanogaster. Real-time qRT-PCR was performed to measure the changes in the expression of Yki (Yorkie, the Drosophila homolog of YAP/TAZ) target genes. We have revealed a lifespan-increasing effect of YAP/TAZ inhibitors that was mostly associated with decreased expression levels of the wg and E2f1 genes. However, further analysis is required to understand the link between the YAP/TAZ pathway and aging.
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Affiliation(s)
- Denis A Golubev
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, Russia
| | - Nadezhda V Zemskaya
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, Russia
| | - Anastasia A Gorbunova
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, Russia
| | - Daria V Kukuman
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, Russia
| | - Alexey Moskalev
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, Russia
| | - Mikhail V Shaposhnikov
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, Russia
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7
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Gui T, Burgering BMT. FOXOs: masters of the equilibrium. FEBS J 2022; 289:7918-7939. [PMID: 34610198 PMCID: PMC10078705 DOI: 10.1111/febs.16221] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/22/2021] [Accepted: 10/04/2021] [Indexed: 01/14/2023]
Abstract
Forkhead box O (FOXO) transcription factors (TFs) are a subclass of the larger family of forkhead TFs. Mammalians express four members FOXO1, FOXO3, FOXO4, and FOXO6. The interest in FOXO function stems mostly from their observed role in determining lifespan, where in model organisms, increased FOXO activity results in extended lifespan. FOXOs act as downstream of several signaling pathway and are extensively regulated through post-translational modifications. The transcriptional program activated by FOXOs in various cell types, organisms, and under various conditions has been described and has shed some light on what the critical transcriptional targets are in mediating FOXO function. At the cellular level, these studies have revealed a role for FOXOs in cell metabolism, cellular redox, cell proliferation, DNA repair, autophagy, and many more. The general picture that emerges hereof is that FOXOs act to preserve equilibrium, and they are important for cellular homeostasis. Here, we will first briefly summarize the general knowledge of FOXO regulation and possible functions. We will use genomic stability to illustrate how FOXOs ensure homeostasis. Genomic stability is critical for maintaining genetic integrity, and therefore preventing disease. However, genomic mutations need to occur during lifetime to enable evolution, yet their accumulation is believed to be causative to aging. Therefore, the role of FOXO in genomic stability may underlie its role in lifespan and aging. Finally, we will come up with questions on some of the unknowns in FOXO function, the answer(s) to which we believe will further our understanding of FOXO function and ultimately may help to understand lifespan and its consequences.
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Affiliation(s)
- Tianshu Gui
- Molecular Cancer Research, Center Molecular Medicine, University Medical Center Utrecht and the Oncode Institute, The Netherlands
| | - Boudewijn M T Burgering
- Molecular Cancer Research, Center Molecular Medicine, University Medical Center Utrecht and the Oncode Institute, The Netherlands
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8
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PAHSAs reduce cellular senescence and protect pancreatic beta cells from metabolic stress through regulation of Mdm2/p53. Proc Natl Acad Sci U S A 2022; 119:e2206923119. [PMID: 36375063 PMCID: PMC9704710 DOI: 10.1073/pnas.2206923119] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Senescence in pancreatic beta cells plays a major role in beta cell dysfunction, which leads to impaired glucose homeostasis and diabetes. Therefore, prevention of beta cell senescence could reduce the risk of diabetes. Treatment of nonobese diabetic (NOD) mice, a model of type 1 autoimmune diabetes (T1D), with palmitic acid hydroxy stearic acids (PAHSAs), a novel class of endogenous lipids with antidiabetic and antiinflammatory effects, delays the onset and reduces the incidence of T1D from 82% with vehicle treatment to 35% with PAHSAs. Here, we show that a major mechanism by which PAHSAs protect islets of the NOD mice is by directly preventing and reversing the initial steps of metabolic stress-induced senescence. In vitro PAHSAs increased Mdm2 expression, which decreases the stability of p53, a key inducer of senescence-related genes. In addition, PAHSAs enhanced expression of protective genes, such as those regulating DNA repair and glutathione metabolism and promoting autophagy. We demonstrate the translational relevance by showing that PAHSAs prevent and reverse early stages of senescence in metabolically stressed human islets by the same Mdm2 mechanism. Thus, a major mechanism for the dramatic effect of PAHSAs in reducing the incidence of type 1 diabetes in NOD mice is decreasing cellular senescence; PAHSAs may have a similar benefit in humans.
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9
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Salminen A. Aryl hydrocarbon receptor (AhR) reveals evidence of antagonistic pleiotropy in the regulation of the aging process. Cell Mol Life Sci 2022; 79:489. [PMID: 35987825 PMCID: PMC9392714 DOI: 10.1007/s00018-022-04520-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/14/2022] [Accepted: 08/08/2022] [Indexed: 11/24/2022]
Abstract
The antagonistic pleiotropy hypothesis is a well-known evolutionary theory to explain the aging process. It proposes that while a particular gene may possess beneficial effects during development, it can exert deleterious properties in the aging process. The aryl hydrocarbon receptor (AhR) has a significant role during embryogenesis, but later in life, it promotes several age-related degenerative processes. For instance, AhR factor (i) controls the pluripotency of stem cells and the stemness of cancer stem cells, (ii) it enhances the differentiation of embryonal stem cells, especially AhR signaling modulates the differentiation of hematopoietic stem cells and progenitor cells, (iii) it also stimulates the differentiation of immunosuppressive Tregs, Bregs, and M2 macrophages, and finally, (iv) AhR signaling participates in the differentiation of many peripheral tissues. On the other hand, AhR signaling is involved in many processes promoting cellular senescence and pathological processes, e.g., osteoporosis, vascular dysfunction, and the age-related remodeling of the immune system. Moreover, it inhibits autophagy and aggravates extracellular matrix degeneration. AhR signaling also stimulates oxidative stress, promotes excessive sphingolipid synthesis, and disturbs energy metabolism by catabolizing NAD+ degradation. The antagonistic pleiotropy of AhR signaling is based on the complex and diverse connections with major signaling pathways in a context-dependent manner. The major regulatory steps include, (i) a specific ligand-dependent activation, (ii) modulation of both genetic and non-genetic responses, (iii) a competition and crosstalk with several transcription factors, such as ARNT, HIF-1α, E2F1, and NF-κB, and (iv) the epigenetic regulation of target genes with binding partners. Thus, not only mTOR signaling but also the AhR factor demonstrates antagonistic pleiotropy in the regulation of the aging process.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
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10
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Liang D, Li Z, Feng Z, Yuan Z, Dai Y, Wu X, Zhang F, Wang Y, Zhou Y, Liu L, Shi M, Xiao Y, Guo B. Metformin Improves the Senescence of Renal Tubular Epithelial Cells in a High-Glucose State Through E2F1. Front Pharmacol 2022; 13:926211. [PMID: 35814218 PMCID: PMC9262145 DOI: 10.3389/fphar.2022.926211] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/03/2022] [Indexed: 11/24/2022] Open
Abstract
Diabetic kidney disease is a major cause of chronic kidney condition and the most common complication of diabetes. The cellular senescence participates in the process of diabetic kidney disease, but the specific mechanism is not yet clear. Cell cycle-related protein E2F transcription factor 1 (E2F1) is a member of the E2F transcription factor family, it plays a key role in cellular damage under HG conditions. In this study, we explored whether metformin improves a high-glucose-induced senescence and fibrosis of renal tubular epithelial cells through cell cycle-related protein E2F1. In the in vivo experiments, the recombinant adeno-associated virus (AAV-shE2F1) knockdown E2F1 gene was injected into the tail vein of 16-weeks-old db/db mice for 8 weeks. The 16-week-old db/db mice were administered metformin (260 mg/kg/d) continuously for 8 weeks. The normal control group (NC) and diabetic model group (DM) were set up simultaneously. Mice renal tubular epithelial cells (mRTECs) were cultured in vitro. The cells were randomly divided into the following groups: normal glucose (NG, containing 5.5 mmol/L glucose), high glucose group (HG, containing 30 mmol/L glucose), NG/HG metformin intervention group (NG/HG + Met), NG/HG negative control siRNA transfection group (NG/HG + Control), NG/HG E2F1 siRNA transfection group (NG/HG + siRNA E2F1), HG metformin intervention and overexpression E2F1 plasmid transfection group (HG + Met + overexpress-E2F1). The expression of related indexes were detected by Western blot, real-time polymerase chain reaction (PCR), immunohistochemistry, and immunofluorescence. The results showed that E2F1 knockdown or metformin reduces the degree of renal fibrosis, DNA damage, and cellular senescence in the DM group; metformin also reduced the expression of E2F1. If E2F1 was overexpressed, the effects of metformin in delaying fibrosis and reducing DNA damage and cellular senescence could be weakened. Thus, metformin alleviates high-glucose-induced senescence and fibrosis of renal tubular epithelial cells by downregulating the expression of E2F1.
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Affiliation(s)
- Dan Liang
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Zhiyang Li
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Zhaowei Feng
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Zhiping Yuan
- University Town Hospital, Guizhou Medical University, Guiyang, China
| | - Yunli Dai
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Xin Wu
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Fan Zhang
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Yuanyuan Wang
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Yuxia Zhou
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Lingling Liu
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Mingjun Shi
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
| | - Ying Xiao
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
- *Correspondence: Ying Xiao, ; Bing Guo,
| | - Bing Guo
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
- Department of Pathophysiology, Guizhou Medical University, Guiyang, China
- *Correspondence: Ying Xiao, ; Bing Guo,
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11
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Bin-Jumah MN, Nadeem MS, Gilani SJ, Al-Abbasi FA, Ullah I, Alzarea SI, Ghoneim MM, Alshehri S, Uddin A, Murtaza BN, Kazmi I. Genes and Longevity of Lifespan. Int J Mol Sci 2022; 23:1499. [PMID: 35163422 PMCID: PMC8836117 DOI: 10.3390/ijms23031499] [Citation(s) in RCA: 12] [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: 12/05/2021] [Revised: 01/04/2022] [Accepted: 01/26/2022] [Indexed: 12/12/2022] Open
Abstract
Aging is a complex process indicated by low energy levels, declined physiological activity, stress induced loss of homeostasis leading to the risk of diseases and mortality. Recent developments in medical sciences and an increased availability of nutritional requirements has significantly increased the average human lifespan worldwide. Several environmental and physiological factors contribute to the aging process. However, about 40% human life expectancy is inherited among generations, many lifespan associated genes, genetic mechanisms and pathways have been demonstrated during last decades. In the present review, we have evaluated many human genes and their non-human orthologs established for their role in the regulation of lifespan. The study has included more than fifty genes reported in the literature for their contributions to the longevity of life. Intact genomic DNA is essential for the life activities at the level of cell, tissue, and organ. Nucleic acids are vulnerable to oxidative stress, chemotherapies, and exposure to radiations. Efficient DNA repair mechanisms are essential for the maintenance of genomic integrity, damaged DNA is not replicated and transferred to next generations rather the presence of deleterious DNA initiates signaling cascades leading to the cell cycle arrest or apoptosis. DNA modifications, DNA methylation, histone methylation, histone acetylation and DNA damage can eventually lead towards apoptosis. The importance of calorie restriction therapy in the extension of lifespan has also been discussed. The role of pathways involved in the regulation of lifespan such as DAF-16/FOXO (forkhead box protein O1), TOR and JNK pathways has also been particularized. The study provides an updated account of genetic factors associated with the extended lifespan and their interactive contributory role with cellular pathways.
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Affiliation(s)
- May Nasser Bin-Jumah
- Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
- Environment and Biomaterial Unit, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Sadaf Jamal Gilani
- Department of Basic Health Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Fahad A. Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Inam Ullah
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54000, Pakistan;
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia;
| | - Mohammed M. Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Ad Diriyah 13713, Saudi Arabia;
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Aziz Uddin
- Department of Biotechnology and Genetic Engineering, Hazara University, Mansehra 21300, Pakistan;
| | - Bibi Nazia Murtaza
- Department of Zoology, Abbottabad University of Science and Technology (AUST), Abbottabad 22310, Pakistan;
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
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12
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Li P, Lv H, Wu Y, Xu K, Xu M, Ma Y. E2F transcription factor 1 is involved in the phenotypic modulation of esophageal squamous cell carcinoma cells via microRNA-375. Bioengineered 2021; 12:10047-10062. [PMID: 34699320 PMCID: PMC8809976 DOI: 10.1080/21655979.2021.1996510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/15/2021] [Accepted: 10/16/2021] [Indexed: 12/28/2022] Open
Abstract
E2F family of transcription factors modulates multiple cellular functions associated with cell cycle and apoptosis. Here, we focused on the relevance of E2F1 to esophageal squamous cell carcinoma (ESCC) and identification of E2F1-mediated network in this study. Query of Gene Expression Omnibus database revealed that E2F1 was the core gene that was upregulated in ESCC. E2F1 downregulation inhibited ESCC cell activity. microRNA (miR)-375 was confirmed to be a downstream target of E2F1. E2F1 bound to miR-375 promoter and inhibited miR-375 transcription. Moreover, miR-375 inhibitor mitigated the repressive impacts of si-E2F1 on ESCC cells in part. Further study showed that sestrin 3 (SESN3) could interact with miR-375, and its knockdown annulled the stimulative effect of miR-375 inhibitor on ESCC development. Finally, E2F1 and SESN3 downregulation inhibited the phosphatidylinositol 3 kinase (PI3K)/AKT pathway activity in cells, while miR-375 inhibitor promoted PI3K/AKT pathway activation. These findings suggest that E2F1 inhibited miR-375 expression and promoted SESN3 expression to activate the PI3K/AKT pathway in ESCC.
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Affiliation(s)
- Pengfei Li
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Huina Lv
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yongkai Wu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Ke Xu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Min Xu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
| | - Yegang Ma
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, China
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13
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Lee GY, Sohn J, Lee SJV. Combinatorial Approach Using Caenorhabditis elegans and Mammalian Systems for Aging Research. Mol Cells 2021; 44:425-432. [PMID: 34248055 PMCID: PMC8334350 DOI: 10.14348/molcells.2021.0080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/21/2021] [Accepted: 05/23/2021] [Indexed: 12/13/2022] Open
Abstract
Aging is associated with functional and structural declines in organisms over time. Organisms as diverse as the nematode Caenorhabditis elegans and mammals share signaling pathways that regulate aging and lifespan. In this review, we discuss recent combinatorial approach to aging research employing C. elegans and mammalian systems that have contributed to our understanding of evolutionarily conserved aging-regulating pathways. The topics covered here include insulin/IGF-1, mechanistic target of rapamycin (mTOR), and sirtuin signaling pathways; dietary restriction; autophagy; mitochondria; and the nervous system. A combinatorial approach employing high-throughput, rapid C. elegans systems, and human model mammalian systems is likely to continue providing mechanistic insights into aging biology and will help develop therapeutics against age-associated disorders.
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Affiliation(s)
- Gee-Yoon Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Jooyeon Sohn
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Seung-Jae V. Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
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14
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Wang Y, Li M, Zhang L, Chen Y, Zhang S. m6A demethylase FTO induces NELL2 expression by inhibiting E2F1 m6A modification leading to metastasis of non-small cell lung cancer. MOLECULAR THERAPY-ONCOLYTICS 2021; 21:367-376. [PMID: 34169146 PMCID: PMC8190133 DOI: 10.1016/j.omto.2021.04.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/24/2021] [Indexed: 12/25/2022]
Abstract
Non-small cell lung cancer (NSCLC) represents one of the primary causes of cancer-related mortality all over the world. Following our initial finding of the upregulated expression of E2F transcription factor-1 (E2F1) in the NSCLC-related microarray, this study aimed to explore the regulatory role of E2F1 and underlying mechanism in NSCLC development. NSCLC cell viability, migration, and invasion were evaluated utilizing Cell Counting Kit 8 (CCK-8), 5-ethynyl-2′-deoxyuridine (EdU), wound-healing, and Transwell assays. Loss- and gain-function assays were performed to determine the effects of the fat mass and obesity-associated protein (FTO)/E2F1/neural epidermal growth factor-like 2 (NELL2) axis on NSCLC cell behaviors in vitro and NSCLC tumor growth in vivo. E2F1 was highly expressed in both NSCLC tissues and cells. E2F1 augmented the viability, migration, and invasion of NSCLC cells, which was attributable to E2F1 transcriptionally activating NELL2. FTO upregulated the expression of E2F1 by inhibiting the m6A modification of E2F1. The FTO/E2F1/NELL2 axis modulated NSCLC cell viability, migration, and invasion in vitro as well as affected NSCLC tumor growth and metastasis in vivo. The FTO/E2F1/NELL2 axis may impart pro-tumorigenic effects on the cell behavior of NSCLC cells and thus accelerate NSCLC progression.
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Affiliation(s)
- Yanyun Wang
- Department of Medical Oncology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, P.R. China
| | - Man Li
- Department of Radiology and Imaging, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, P.R. China
| | - Lin Zhang
- Department of Medical Oncology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, P.R. China
| | - Yitong Chen
- Department of Medical Oncology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, P.R. China
| | - Shoudan Zhang
- Department of Neurosurgery, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, Liaoning Province, P.R. China
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15
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Behl T, Kaur I, Sehgal A, Singh S, Zengin G, Negrut N, Nistor-Cseppento DC, Pavel FM, Corb Aron RA, Bungau S. Exploring the Genetic Conception of Obesity via the Dual Role of FoxO. Int J Mol Sci 2021. [DOI: https://doi.org/10.3390/ijms22063179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Obesity or overweight are not superficial problems, constituting a pressing issue. The obesity index has almost tripled since 1975, which is an alarming state. Most of the individuals are currently becoming overweight or have inappropriate body mass index (BMI) conditions. Obesity is characterized by increased fat accumulation and thus poses a higher health risk. There is increased size and volume of fat cells in the body, which usually accounts for obesity. Many investigations have been carried out in this area, such as behavioral improvements, dietary changes, chemical involvements, etc., but presently no such goals are established to manage these health concerns. Based on previous literature reports and our interpretation, the current review indicates the involvement of various transcriptional and transporter functions in modifying the above-mentioned health conditions. Various transcriptional factors such as Forkhead box O1 (FoxO1) impart a significant effect on the physiology and pathology of metabolic dysfunction such as obesity. FoxO1 plays a dual role whether in the progression or suppression of metabolic processes depending on its targets. Thus, in the current study, will be discussed the dual role of FoxO1 in metabolic conditions (such as obesity), also summarizing the role of various other transcriptional factors involved in obesity.
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16
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Behl T, Kaur I, Sehgal A, Singh S, Zengin G, Negrut N, Nistor-Cseppento DC, Pavel FM, Corb Aron RA, Bungau S. Exploring the Genetic Conception of Obesity via the Dual Role of FoxO. Int J Mol Sci 2021; 22:ijms22063179. [PMID: 33804729 PMCID: PMC8003860 DOI: 10.3390/ijms22063179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/10/2021] [Accepted: 03/18/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity or overweight are not superficial problems, constituting a pressing issue. The obesity index has almost tripled since 1975, which is an alarming state. Most of the individuals are currently becoming overweight or have inappropriate body mass index (BMI) conditions. Obesity is characterized by increased fat accumulation and thus poses a higher health risk. There is increased size and volume of fat cells in the body, which usually accounts for obesity. Many investigations have been carried out in this area, such as behavioral improvements, dietary changes, chemical involvements, etc., but presently no such goals are established to manage these health concerns. Based on previous literature reports and our interpretation, the current review indicates the involvement of various transcriptional and transporter functions in modifying the above-mentioned health conditions. Various transcriptional factors such as Forkhead box O1 (FoxO1) impart a significant effect on the physiology and pathology of metabolic dysfunction such as obesity. FoxO1 plays a dual role whether in the progression or suppression of metabolic processes depending on its targets. Thus, in the current study, will be discussed the dual role of FoxO1 in metabolic conditions (such as obesity), also summarizing the role of various other transcriptional factors involved in obesity.
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Affiliation(s)
- Tapan Behl
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (I.K.); (A.S.); (S.S.)
- Correspondence: (T.B.); (S.B.); Tel.: +40-726-776-588 (S.B.)
| | - Ishnoor Kaur
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (I.K.); (A.S.); (S.S.)
| | - Aayush Sehgal
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (I.K.); (A.S.); (S.S.)
| | - Sukhbir Singh
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (I.K.); (A.S.); (S.S.)
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University Campus, Konya 42130, Turkey;
| | - Nicoleta Negrut
- Department of Psycho-Neuroscience and Recovery, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (N.N.); (D.C.N.-C.)
| | - Delia Carmen Nistor-Cseppento
- Department of Psycho-Neuroscience and Recovery, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (N.N.); (D.C.N.-C.)
| | - Flavia Maria Pavel
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (F.M.P.); (R.A.C.A.)
| | - Raluca Anca Corb Aron
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (F.M.P.); (R.A.C.A.)
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
- Correspondence: (T.B.); (S.B.); Tel.: +40-726-776-588 (S.B.)
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17
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Erbaba B, Arslan-Ergul A, Adams MM. Effects of caloric restriction on the antagonistic and integrative hallmarks of aging. Ageing Res Rev 2021; 66:101228. [PMID: 33246078 DOI: 10.1016/j.arr.2020.101228] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/09/2020] [Accepted: 11/19/2020] [Indexed: 12/19/2022]
Abstract
Aging is a significant risk factor for cognitive decline associated with neurodegenerative diseases, which makes understanding what promotes 'healthy brain aging' very important. Studies suggest that caloric restriction (CR) is a non-genetic intervention that reliably extends life- and healthspan. Here, we review the CR literature related to both the subject of aging and alterations in cell cycle machinery, especially surrounding the regulation of the E2F/DP1 complex, to elucidate the cellular protection mechanisms in the brain induced via dietary applications. The alterations extending lifespan via CR appear to exert their effects by promoting survival of individual cells, downregulating cell proliferation, and inducing stem cell quiescence, which results in keeping the stem cell reserve for extreme needs. This survival instinct of cells is believed to cause some molecular adaptations for their maintenance of the system. Avoiding energy waste of proliferation machinery promotes the long term survival of the individual cells and this is due to adaptations to the limited nutrient supply in the environment. Such a protective mechanism induced by diet could be promoted via the downregulation of crucial cell cycle-related transcription activators. This review article aims to bring attention to the importance of molecular adaptations induced by diet that promote healthy brain aging. It will provide insights into alternative targets for new treatments or neuroprotective approaches against neurodegenerative pathophysiologies.
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Affiliation(s)
- Begun Erbaba
- Interdisciplinary Graduate Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey
| | - Ayca Arslan-Ergul
- National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey
| | - Michelle M Adams
- Interdisciplinary Graduate Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey; Department of Psychology, Bilkent University, Ankara, Turkey.
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18
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Willis CRG, Szewczyk NJ, Costes SV, Udranszky IA, Reinsch SS, Etheridge T, Conley CA. Comparative Transcriptomics Identifies Neuronal and Metabolic Adaptations to Hypergravity and Microgravity in Caenorhabditis elegans. iScience 2020; 23:101734. [PMID: 33376968 PMCID: PMC7756135 DOI: 10.1016/j.isci.2020.101734] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/15/2020] [Accepted: 10/22/2020] [Indexed: 12/13/2022] Open
Abstract
Deep space exploration is firmly within reach, but health decline during extended spaceflight remains a key challenge. In this study, we performed comparative transcriptomic analysis of Caenorhabditis elegans responses to varying degrees of hypergravity and to two spaceflight experiments (ICE-FIRST and CERISE). We found that progressive hypergravitational load concomitantly increases the extent of differential gene regulation and that subtle changes in ∼1,000 genes are reproducibly observed during spaceflight-induced microgravity. Consequently, we deduce those genes that are concordantly regulated by altered gravity per se or that display inverted expression profiles during hypergravity versus microgravity. Through doing so, we identify several candidate targets with terrestrial roles in neuronal function and/or cellular metabolism, which are linked to regulation by daf-16/FOXO signaling. These data offer a strong foundation from which to expedite mechanistic understanding of spaceflight-induced maladaptation in higher organisms and, ultimately, promote future targeted therapeutic development. Comparative transcriptomics in C. elegans exposed to hypergravity and spaceflight Bioinformatics identifies novel putative regulators of altered gravitational load Candidate molecules infer a close gravity > daf-16/FOXO > neuronal link
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Affiliation(s)
- Craig R G Willis
- Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK
| | - Nathaniel J Szewczyk
- MRC-ARUK Centre for Musculoskeletal Ageing Research and National Institute of Health Research, Biomedical Research Centre, School of Medicine, Royal Derby Hospital, University of Nottingham, Derby, DE22 3DT, UK.,Ohio Musculoskeletal and Neurological Institute (OMNI) and Department of Biomedical Sciences, Ohio University, Athens, OH 43147, USA
| | - Sylvain V Costes
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
| | | | - Sigrid S Reinsch
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
| | - Timothy Etheridge
- Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX1 2LU, UK
| | - Catharine A Conley
- Space Science and Astrobiology Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
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19
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Chen R, Morris BJ, Donlon TA, Masaki KH, Willcox DC, Davy PMC, Allsopp RC, Willcox BJ. FOXO3 longevity genotype mitigates the increased mortality risk in men with a cardiometabolic disease. Aging (Albany NY) 2020; 12:23509-23524. [PMID: 33260156 PMCID: PMC7762472 DOI: 10.18632/aging.202175] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/22/2020] [Indexed: 12/31/2022]
Abstract
FOXO3 is a prominent longevity gene. To date, no-one has examined whether longevity-associated FOXO3 genetic variants protect against mortality in all individuals, or only in those with aging-related diseases. We therefore tested longevity-associated FOXO3 single nucleotide polymorphisms in a haplotype block for association with mortality in 3,584 elderly American men of Japanese ancestry, 2,512 with and 1,072 without a cardiometabolic disease (CMD). At baseline (1991–1993), 1,010 CMD subjects had diabetes, 1,919 had hypertension, and 738 had coronary heart disease (CHD). Follow-up until Dec 31, 2019 found that in CMD-affected individuals, longevity-associated alleles of FOXO3 were associated with significantly longer lifespan: haplotype hazard ratio 0.81 (95% CI 0.72-0.91; diabetes 0.77, hypertension 0.82, CHD 0.83). Overall, men with a CMD had higher mortality than men without a CMD (P=6x10-7). However, those men with a CMD who had the FOXO3 longevity genotype had similar survival as men without a CMD. In men without a CMD there was no association of longevity-associated alleles of FOXO3 with lifespan. Our study provides novel insights into the basis for the long-established role of FOXO3 as a longevity gene. We suggest that the FOXO3 longevity genotype increases lifespan only in at-risk individuals by protection against cardiometabolic stress.
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Affiliation(s)
- Randi Chen
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA
| | - Brian J Morris
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA.,Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813, USA.,School of Medical Sciences, University of Sydney, Sydney, New South Wales, Australia
| | - Timothy A Donlon
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA.,Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813, USA.,Institute for Biogenesis Research, University of Hawaii, Honolulu, HI 96822, USA
| | - Kamal H Masaki
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA.,Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813, USA
| | - D Craig Willcox
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA.,Department of Pathology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813, USA
| | - Philip M C Davy
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA.,Department of Human Welfare, Okinawa International University, Ginowan, Okinawa, Japan
| | - Richard C Allsopp
- Department of Human Welfare, Okinawa International University, Ginowan, Okinawa, Japan
| | - Bradley J Willcox
- Department of Research, Kuakini Medical Center, Honolulu, HI 96817, USA.,Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813, USA
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20
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Shao A, Lin D, Wang L, Tu S, Lenahan C, Zhang J. Oxidative Stress at the Crossroads of Aging, Stroke and Depression. Aging Dis 2020; 11:1537-1566. [PMID: 33269106 PMCID: PMC7673857 DOI: 10.14336/ad.2020.0225] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 02/25/2020] [Indexed: 12/17/2022] Open
Abstract
Epidemiologic studies have shown that in the aging society, a person dies from stroke every 3 minutes and 42 seconds, and vast numbers of people experience depression around the globe. The high prevalence and disability rates of stroke and depression introduce enormous challenges to public health. Accumulating evidence reveals that stroke is tightly associated with depression, and both diseases are linked to oxidative stress (OS). This review summarizes the mechanisms of OS and OS-mediated pathological processes, such as inflammation, apoptosis, and the microbial-gut-brain axis in stroke and depression. Pathological changes can lead to neuronal cell death, neurological deficits, and brain injury through DNA damage and the oxidation of lipids and proteins, which exacerbate the development of these two disorders. Additionally, aging accelerates the progression of stroke and depression by overactive OS and reduced antioxidant defenses. This review also discusses the efficacy and safety of several antioxidants and antidepressants in stroke and depression. Herein, we propose a crosstalk between OS, aging, stroke, and depression, and provide potential therapeutic strategies for the treatment of stroke and depression.
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Affiliation(s)
- Anwen Shao
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Danfeng Lin
- 2Department of Surgical Oncology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Lingling Wang
- 2Department of Surgical Oncology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
| | - Sheng Tu
- 3State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, China
| | - Cameron Lenahan
- 4Burrell College of Osteopathic Medicine, Las Cruces, USA.,5Center for Neuroscience Research, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Jianmin Zhang
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China.,6Brain Research Institute, Zhejiang University, Zhejiang, China.,7Collaborative Innovation Center for Brain Science, Zhejiang University, Zhejiang, China
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21
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Li Y, Tao T, Du L, Zhu X. Three-dimensional genome: developmental technologies and applications in precision medicine. J Hum Genet 2020; 65:497-511. [PMID: 32152365 DOI: 10.1038/s10038-020-0737-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/20/2020] [Accepted: 02/22/2020] [Indexed: 12/17/2022]
Abstract
In the 20th century, our familiar structure of DNA was the double helix. Due to technical limitations, we do not have a good way to understand the finer structure of the genome, let alone its transcriptional regulation. Until the advent of 3C technologies, we were no longer blind to this one. Three-dimensional (3D) genomics is a new subject, which mainly studies the 3D structure and transcriptional regulation of eukaryotic genomes. Now, this field mainly has Hi-C series and CHIA-PET series technologies. Through 3D genomics, we can understand the basic structure of DNA, understand the growth and development of organisms and the occurrence of diseases, so as to promote human medical and health undertakings. The review introduces the main research techniques of 3D genomics and their characteristics, the latest development of 3D genome structure, the relationship between diseases and 3D genome structure, the applications of 3D genome in precision medicine, and the development of the 4D nucleome project.
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Affiliation(s)
- Yingqi Li
- Marine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Guangdong Medical University, Zhanjiang, 524023, China
| | - Tao Tao
- Department of Gastroenterology, Zibo Central Hospital, Zibo, 255000, China
| | - Likun Du
- First Affiliated Hospital, Heilongjiang University of Traditional Chinese Medicine, Harbin, 150040, China.
| | - Xiao Zhu
- Marine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Southern Marine Science and Engineering Guangdong Laboratory Zhanjiang, Guangdong Medical University, Zhanjiang, 524023, China.
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22
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Rozanov L, Ravichandran M, Grigolon G, Zanellati MC, Mansfeld J, Zarse K, Barzilai N, Atzmon G, Fischer F, Ristow M. Redox-mediated regulation of aging and healthspan by an evolutionarily conserved transcription factor HLH-2/Tcf3/E2A. Redox Biol 2020; 32:101448. [PMID: 32203922 PMCID: PMC7096751 DOI: 10.1016/j.redox.2020.101448] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 02/02/2020] [Indexed: 02/08/2023] Open
Abstract
Physiological aging is a complex process, influenced by a plethora of genetic and environmental factors. While being far from fully understood, a number of common aging hallmarks have been elucidated in recent years. Among these, transcriptomic alterations are hypothesized to represent a crucial early manifestation of aging. Accordingly, several transcription factors (TFs) have previously been identified as important modulators of lifespan in evolutionarily distant model organisms. Based on a set of TFs conserved between nematodes, zebrafish, mice, and humans, we here perform a RNA interference (RNAi) screen in C. elegans to discover evolutionarily conserved TFs impacting aging. We identify a basic helix-loop-helix TF, named HLH-2 in nematodes (Tcf3/E2A in mammals), to exert a pronounced lifespan-extending effect in C. elegans upon impairment. We further show that its impairment impacts cellular energy metabolism, increases parameters of healthy aging, and extends nematodal lifespan in a ROS-dependent manner. We then identify arginine kinases, orthologues of mammalian creatine kinases, as a target of HLH-2 transcriptional regulation, serving to mediate the healthspan-promoting effects observed upon impairment of hlh-2 expression. Consistently, HLH-2 is shown to epistatically interact with core components of known lifespan-regulating pathways, i.e. AAK-2/AMPK and LET-363/mTOR, as well as the aging-related TFs SKN-1/Nrf2 and HSF-1. Lastly, single-nucelotide polymorphisms (SNPs) in Tcf3/E2A are associated with exceptional longevity in humans. Together, these findings demonstrate that HLH-2 regulates energy metabolism via arginine kinases and thereby affects the aging phenotype dependent on ROS-signaling and established canonical effectors. A C. elegans RNAi screen identifies conserved aging-related transcription factors. Impairment of transcription factor hlh-2 has the most pronounced effect on lifespan. C. elegans HLH-2 affects cellular energy homeostasis and redox signaling. HLH-2 modulates arginine kinase to interact with downstream longevity pathways. Polymorphisms (SNPs) in the hlh-2 orthologue Tcf3/E2A are linked to human longevity.
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Affiliation(s)
- Leonid Rozanov
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland
| | - Meenakshi Ravichandran
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland
| | - Giovanna Grigolon
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland
| | - Maria Clara Zanellati
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland
| | - Johannes Mansfeld
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland
| | - Kim Zarse
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland
| | - Nir Barzilai
- Albert Einstein College of Medicine, Departments of Genetics and of Medicine, Bronx, NY, 10461, USA
| | - Gil Atzmon
- Albert Einstein College of Medicine, Departments of Genetics and of Medicine, Bronx, NY, 10461, USA; University of Haifa, Faculty of Natural Sciences, Haifa, 3498838, Israel
| | - Fabian Fischer
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland.
| | - Michael Ristow
- Energy Metabolism Laboratory, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zurich, Schwerzenbach, CH-8603, Switzerland.
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Wang Y, Chen S, Yan Z, Pei M. A prospect of cell immortalization combined with matrix microenvironmental optimization strategy for tissue engineering and regeneration. Cell Biosci 2019; 9:7. [PMID: 30627420 PMCID: PMC6321683 DOI: 10.1186/s13578-018-0264-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/21/2018] [Indexed: 12/20/2022] Open
Abstract
Cellular senescence is a major hurdle for primary cell-based tissue engineering and regenerative medicine. Telomere erosion, oxidative stress, the expression of oncogenes and the loss of tumor suppressor genes all may account for the cellular senescence process with the involvement of various signaling pathways. To establish immortalized cell lines for research and clinical use, strategies have been applied including internal genomic or external matrix microenvironment modification. Considering the potential risks of malignant transformation and tumorigenesis of genetic manipulation, environmental modification methods, especially the decellularized cell-deposited extracellular matrix (dECM)-based preconditioning strategy, appear to be promising for tissue engineering-aimed cell immortalization. Due to few review articles focusing on this topic, this review provides a summary of cell senescence and immortalization and discusses advantages and limitations of tissue engineering and regeneration with the use of immortalized cells as well as a potential rejuvenation strategy through combination with the dECM approach.
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Affiliation(s)
- Yiming Wang
- 1Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196 USA.,2Department of Orthopaedics, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032 China
| | - Song Chen
- 3Department of Orthopaedics, Chengdu Military General Hospital, Chengdu, 610083 Sichuan China
| | - Zuoqin Yan
- 2Department of Orthopaedics, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032 China
| | - Ming Pei
- 1Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, PO Box 9196, 64 Medical Center Drive, Morgantown, WV 26506-9196 USA.,4WVU Cancer Institute, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV 26506 USA
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24
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Li Z, Chen B, Dong W, Xu W, Song M, Fang M, Guo J, Xu Y. Epigenetic activation of PERP transcription by MKL1 contributes to ROS-induced apoptosis in skeletal muscle cells. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2018; 1861:S1874-9399(18)30177-9. [PMID: 30056131 DOI: 10.1016/j.bbagrm.2018.07.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/19/2018] [Accepted: 07/24/2018] [Indexed: 12/25/2022]
Abstract
Excessive reactive oxygen species (ROS) causes irreparable damages to cells and commit cells to programmed cell death or apoptosis. A panel of well-documented pro-apoptotic genes, including p53 apoptosis effector related to PMP-22 (PERP), are up-regulated and collectively mediate ROS induced apoptosis. The epigenetic mechanism whereby ROS stimulates PERP transcription, however, lacks in-depth characterization. Here we report that the transcriptional modulator megakaryocytic leukemia 1 (MKL1) is activated by H2O2 treatment in skeletal muscle cells (C2C12). Small interfering RNA (siRNA) mediated silencing or small-molecule compound (CCG-1423) mediated inhibition of MKL1 attenuated H2O2 induced apoptosis of C2C12 cells. Over-expression of MKL1 potentiated trans-activation of PERP whereas MKL1 ablation/inhibition abrogated the induction of PERP by H2O2 in C2C12 cells. Mechanistically, MKL1 interacted with and was recruited to the PERP promoter by the transcription factor E2F1. Once bound to the PERP promoter, MKL1 engaged the histone demethylase KDM3A to modulate the chromatin structure surrounding the PERP promoter thereby leading to PERP trans-activation. Depletion of either E2F1 or KDM3A blocked the induction of PERP by H2O2. In conclusion, our data illustrate a novel epigenetic pathway that links PERP transcription to ROS-induced apoptosis in skeletal muscle cells.
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Affiliation(s)
- Zilong Li
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China
| | - Baoyu Chen
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Wenhui Dong
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Wenping Xu
- Department of Medicine, Jiangsu Health Vocational College, Nanjing, China
| | - Mingzi Song
- Department of Medicine, Jiangsu Health Vocational College, Nanjing, China
| | - Mingming Fang
- Department of Medicine, Jiangsu Health Vocational College, Nanjing, China
| | - Junli Guo
- Cardiovascular Disease and Research Institute, Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China.
| | - Yong Xu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China.
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25
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Lin JR, Zheng YJ, Zhang ZB, Shen WL, Li XD, Wei T, Ruan CC, Chen XH, Zhu DL, Gao PJ. Suppression of Endothelial-to-Mesenchymal Transition by SIRT (Sirtuin) 3 Alleviated the Development of Hypertensive Renal Injury. Hypertension 2018; 72:350-360. [PMID: 29915018 DOI: 10.1161/hypertensionaha.118.10482] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 02/13/2018] [Accepted: 04/24/2018] [Indexed: 12/12/2022]
Abstract
Endothelial-to-mesenchymal transition (EndoMT) has recently emerged as a potentially important contributor in promoting fibrosis in chronic kidney disease. However, little is known about the role and molecular basis of its involvement in hypertensive renal injury. Here, we aim to determine the role of SIRT (sirtuin) 3 on EndoMT in hypertensive renal injury and to explore its underlying mechanisms. We found that SIRT3 expression was significantly reduced in Ang II (angiotensin II)-induced hypertensive model, accompanied with induction of EndoMT and increased reactive oxygen species and renal fibrosis. In SIRT3-/- (SIRT3 knockout) mice subjected to Ang II infusion, renal dysfunction was aggravated with an increased EndoMT and reactive oxygen species level, whereas in SIRT3-TgEC (SIRT3 endothelial cell-specific transgenic) mice, the Ang II-induced renal fibrosis and EndoMT and oxidative stress were ameliorated. With primary mouse glomerular endothelial cells, we confirmed that Ang II treatment initiated EndoMT and decreased catalase expression, which were suppressed by SIRT3 overexpression. Using immunoprecipitation, luciferase, and chromatin immunoprecipitation assay, we demonstrated that SIRT3-mediated deacetylation and nuclear localization of Foxo3a (forkhead box O3a) resulted in activated Foxo3a-dependent catalase expression. Moreover, Foxo3a knockdown abolished SIRT3-mediated suppression of EndoMT. In conclusion, these results established the SIRT3-Foxo3a-catalase pathway as a critical factor in the maintenance of endothelial homeostasis and point to an important role of EndoMT in the vascular pathology of renal fibrosis, which may provide a new therapeutic target to impede the progression of hypertensive renal injury.
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Affiliation(s)
- Jing-Rong Lin
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Yan-Jun Zheng
- Laboratory of Vascular Biology and Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, China (Y.-j.Z., X.-h.C., P.-j.G.)
| | - Ze-Bei Zhang
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Wei-Li Shen
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Xiao-Dong Li
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Tong Wei
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Cheng-Chao Ruan
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Xiao-Hui Chen
- Laboratory of Vascular Biology and Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, China (Y.-j.Z., X.-h.C., P.-j.G.)
| | - Ding-Liang Zhu
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.)
| | - Ping-Jin Gao
- From the State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Department of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, and Shanghai Institute of Hypertension, China (J.-r.L., Z.-b.Z., W.-l.S., X.-d.L., T.W., C.-c.R., D.-l.Z., P.-j.G.) .,Laboratory of Vascular Biology and Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, China (Y.-j.Z., X.-h.C., P.-j.G.)
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26
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Tsitsipatis D, Klotz LO, Steinbrenner H. Multifaceted functions of the forkhead box transcription factors FoxO1 and FoxO3 in skin. Biochim Biophys Acta Gen Subj 2017; 1861:1057-1064. [PMID: 28249743 DOI: 10.1016/j.bbagen.2017.02.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/16/2017] [Accepted: 02/24/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND The ubiquitously expressed forkhead box, class O (FoxO) transcription factors act as signaling integrators in extensive transcriptional networks, ensuring maintenance of cell and tissue homeostasis over time and in response to environmental challenges. Proteins whose biosynthesis is controlled through FoxOs fulfil key functions in antioxidant defense, metabolism, cell cycle regulation and apoptosis. SCOPE OF REVIEW All four mammalian FoxO isoforms (FoxO1, FoxO3, FoxO4 and FoxO6) are expressed in skin but functions have been specified only for FoxO1 and FoxO3. This review provides an overview on the roles of FoxO1 and FoxO3 in the major types of skin cells: fibroblasts, keratinocytes and melanocytes. MAJOR CONCLUSIONS As expected because of their target genes, FoxOs are involved in counter-acting oxidative stress and in decisions on cell fate regarding apoptosis or senescence. However, their role in skin surpasses these rather obvious tasks: FoxO1 is part of signaling axes related to the control of epidermal morphogenesis and the pathogenesis of acne. FoxO3 dampens the biosynthesis of melanin in melanocytes; on the other hand, FoxO3 suppression in melanoma is associated with impaired apoptosis and increased metastatic potential of melanoma cells. Upon skin injury, a well-balanced and -timed up-regulation of FoxOs appears to support the healing process through affecting proliferation, migration and apoptosis of keratinocytes, fibroblasts and other cells accumulating at the wounded site. GENERAL SIGNIFICANCE FoxO1 and FoxO3 are discussed as homeostatic factors that influence morphogenesis, maintenance and repair processes in skin as well as the pathogenesis of disorders such as acne and skin cancer.
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Affiliation(s)
- Dimitrios Tsitsipatis
- Institute of Nutrition, Department of Nutrigenomics, Friedrich Schiller University, Jena, Germany
| | - Lars-Oliver Klotz
- Institute of Nutrition, Department of Nutrigenomics, Friedrich Schiller University, Jena, Germany
| | - Holger Steinbrenner
- Institute of Nutrition, Department of Nutrigenomics, Friedrich Schiller University, Jena, Germany.
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27
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Kim JH, Lee BR, Choi ES, Lee KM, Choi SK, Cho JH, Jeon WB, Kim E. Reverse Expression of Aging-Associated Molecules through Transfection of miRNAs to Aged Mice. MOLECULAR THERAPY. NUCLEIC ACIDS 2016; 6:106-115. [PMID: 28325277 PMCID: PMC5363412 DOI: 10.1016/j.omtn.2016.11.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 11/01/2016] [Accepted: 11/01/2016] [Indexed: 12/12/2022]
Abstract
Molecular changes during aging have been studied to understand the mechanism of aging progress. Herein, changes in microRNA (miRNA) expression in the whole blood of mice were studied to systemically reverse aging and propose them as non-invasive biomarkers. Through next-generation sequencing analysis, we selected 27 differentially expressed miRNAs during aging. The most recognized function involved was liver steatosis, a type of non-alcoholic fatty liver disease (NAFLD). Among 27 miRNAs, six were predicted to be involved in NAFLD, miR-16-5p, miR-17-5p, miR-21a-5p, miR-30c-5p, miR-103-3p, and miR-130a-3p; alterations in their blood and liver levels were confirmed by real-time qPCR. The expression of the genes associated in the network of these miRNAs, Bcl2, Ppara, E2f1, E2f2, Akt, Ccnd1, and Smad2/3, also was altered in the liver of aged mice. Following transfection of these miRNAs into 18-month-old mice, levels of miR-21a-5p, miR-103-3p, and miR-30c-5p increased, and their related genes exhibited a reversed expression in the liver. Expression of Mre11a, p16INK4a, and Mtor, reported to be aging-associated molecules, also was reversed in the livers of miRNA-transfected mice. These miRNAs could be non-invasive biomarkers for aging, and they might induce a reverse regulation of aging-associated pathways. This study provides preliminary data on reverse aging, which could be applied further for treatments of adult diseases.
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Affiliation(s)
- Jung-Hee Kim
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Bo-Ram Lee
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Eun-Sook Choi
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Kyeong-Min Lee
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Seong-Kyoon Choi
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Jung Hoon Cho
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
| | - Won Bae Jeon
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea
| | - Eunjoo Kim
- Division of Nano & Energy Convergence Research, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea.
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28
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Webb AE, Kundaje A, Brunet A. Characterization of the direct targets of FOXO transcription factors throughout evolution. Aging Cell 2016; 15:673-85. [PMID: 27061590 PMCID: PMC4933671 DOI: 10.1111/acel.12479] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2016] [Indexed: 12/20/2022] Open
Abstract
FOXO transcription factors (FOXOs) are central regulators of lifespan across species, yet they also have cell‐specific functions, including adult stem cell homeostasis and immune function. Direct targets of FOXOs have been identified genome‐wide in several species and cell types. However, whether FOXO targets are specific to cell types and species or conserved across cell types and throughout evolution remains uncharacterized. Here, we perform a meta‐analysis of direct FOXO targets across tissues and organisms, using data from mammals as well as Caenorhabditis elegans and Drosophila. We show that FOXOs bind cell type‐specific targets, which have functions related to that particular cell. Interestingly, FOXOs also share targets across different tissues in mammals, and the function and even the identity of these shared mammalian targets are conserved in invertebrates. Evolutionarily conserved targets show enrichment for growth factor signaling, metabolism, stress resistance, and proteostasis, suggesting an ancestral, conserved role in the regulation of these processes. We also identify candidate cofactors at conserved FOXO targets that change in expression with age, including CREB and ETS family factors. This meta‐analysis provides insight into the evolution of the FOXO network and highlights downstream genes and cofactors that may be particularly important for FOXO's conserved function in adult homeostasis and longevity.
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Affiliation(s)
- Ashley E. Webb
- Department of Genetics Stanford University 300 Pasteur Drive Stanford CA 94305 USA
| | - Anshul Kundaje
- Department of Genetics Stanford University 300 Pasteur Drive Stanford CA 94305 USA
| | - Anne Brunet
- Department of Genetics Stanford University 300 Pasteur Drive Stanford CA 94305 USA
- Glenn Laboratories for the Biology of Aging at Stanford Stanford CA 94305 USA
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29
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Maurya PK, Noto C, Rizzo LB, Rios AC, Nunes SOV, Barbosa DS, Sethi S, Zeni M, Mansur RB, Maes M, Brietzke E. The role of oxidative and nitrosative stress in accelerated aging and major depressive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2016; 65:134-44. [PMID: 26348786 DOI: 10.1016/j.pnpbp.2015.08.016] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/29/2015] [Accepted: 08/30/2015] [Indexed: 12/29/2022]
Abstract
Major depressive disorder (MDD) affects millions of individuals and is highly comorbid with many age associated diseases such as diabetes mellitus, immune-inflammatory dysregulation and cardiovascular diseases. Oxidative/nitrosative stress plays a fundamental role in aging, as well as in the pathogenesis of neurodegenerative/neuropsychiatric disorders including MDD. In this review, we critically review the evidence for an involvement of oxidative/nitrosative stress in acceleration of aging process in MDD. There are evidence of the association between MDD and changes in molecular mechanisms involved in aging. There is a significant association between telomere length, enzymatic antioxidant activities (SOD, CAT, GPx), glutathione (GSH), lipid peroxidation (MDA), nuclear factor κB, inflammatory cytokines with MDD. Major depression also is characterized by significantly lower concentration of antioxidants (zinc, coenzyme Q10, PON1). Since, aging and MDD share a common biological base in their pathophysiology, the potential therapeutic use of antioxidants and anti-aging molecules in MDD could be promising.
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Affiliation(s)
- Pawan Kumar Maurya
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Cristiano Noto
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Lucas B Rizzo
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil; Department of Psychiatry, Clinic for Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Adiel C Rios
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sandra O V Nunes
- Graduation Program in Health Sciences, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Décio Sabbatini Barbosa
- Graduation Program in Health Sciences, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Sumit Sethi
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Maiara Zeni
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Rodrigo B Mansur
- Mood Disorders Psychopharmacology Unit (MDPU), University Health Network (UHN), University of Toronto, Toronto, Canada
| | - Michael Maes
- Graduation Program in Health Sciences, Universidade Estadual de Londrina, Londrina, PR, Brazil; Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand
| | - Elisa Brietzke
- Interdisciplinary Laboratory of Clinical Neurosciences (LINC), Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil.
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30
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Klotz LO, Sánchez-Ramos C, Prieto-Arroyo I, Urbánek P, Steinbrenner H, Monsalve M. Redox regulation of FoxO transcription factors. Redox Biol 2015; 6:51-72. [PMID: 26184557 PMCID: PMC4511623 DOI: 10.1016/j.redox.2015.06.019] [Citation(s) in RCA: 515] [Impact Index Per Article: 57.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 06/25/2015] [Accepted: 06/30/2015] [Indexed: 12/19/2022] Open
Abstract
Transcription factors of the forkhead box, class O (FoxO) family are important regulators of the cellular stress response and promote the cellular antioxidant defense. On one hand, FoxOs stimulate the transcription of genes coding for antioxidant proteins located in different subcellular compartments, such as in mitochondria (i.e. superoxide dismutase-2, peroxiredoxins 3 and 5) and peroxisomes (catalase), as well as for antioxidant proteins found extracellularly in plasma (e.g., selenoprotein P and ceruloplasmin). On the other hand, reactive oxygen species (ROS) as well as other stressful stimuli that elicit the formation of ROS, may modulate FoxO activity at multiple levels, including posttranslational modifications of FoxOs (such as phosphorylation and acetylation), interaction with coregulators, alterations in FoxO subcellular localization, protein synthesis and stability. Moreover, transcriptional and posttranscriptional control of the expression of genes coding for FoxOs is sensitive to ROS. Here, we review these aspects of FoxO biology focusing on redox regulation of FoxO signaling, and with emphasis on the interplay between ROS and FoxOs under various physiological and pathophysiological conditions. Of particular interest are the dual role played by FoxOs in cancer development and their key role in whole body nutrient homeostasis, modulating metabolic adaptations and/or disturbances in response to low vs. high nutrient intake. Examples discussed here include calorie restriction and starvation as well as adipogenesis, obesity and type 2 diabetes.
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Affiliation(s)
- Lars-Oliver Klotz
- Institute of Nutrition, Department of Nutrigenomics, Friedrich-Schiller-Universität Jena, Dornburger Straße 29, 07743 Jena, Germany.
| | - Cristina Sánchez-Ramos
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Arturo Duperier, 4, 28029 Madrid, Spain
| | - Ignacio Prieto-Arroyo
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Arturo Duperier, 4, 28029 Madrid, Spain
| | - Pavel Urbánek
- Institute of Nutrition, Department of Nutrigenomics, Friedrich-Schiller-Universität Jena, Dornburger Straße 29, 07743 Jena, Germany
| | - Holger Steinbrenner
- Institute of Nutrition, Department of Nutrigenomics, Friedrich-Schiller-Universität Jena, Dornburger Straße 29, 07743 Jena, Germany
| | - Maria Monsalve
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Arturo Duperier, 4, 28029 Madrid, Spain.
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