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Wang Q, Su X, Zhu R, Zhao RC. cAMP Agonist Forskolin Disrupts Mitochondrial Metabolism and Induces Senescence in Human Mesenchymal Cells. Stem Cells Dev 2023; 32:87-98. [PMID: 36503249 DOI: 10.1089/scd.2022.0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Adult-derived mesenchymal stem cells (MSCs) can be used in therapies for the treatment of various diseases. The MSCs derived from aging tissues or long-term MSC cultures could have diminished therapeutic effects compared with MSCs derived from younger tissues, but the underlying mechanism has not been completely established. Dysfunction of energy metabolism is one of the main mechanisms underlying cell senescence. Although cyclic adenosine monophosphate (cAMP) is known to inhibit cell division and proliferation in vitro, its impact on MSC senescence has not been described. In this study, we used forskolin, an adenylate cyclase agonist and cAMP inducer, to disrupt metabolism in human adipose-derived MSCs and investigate the effects of metabolic dysfunction on MSC senescence. Treatment of human MSCs with forskolin resulted in senescence phenotypes, including reduced proliferation, cell-cycle arrest, and enhanced expression of the cell aging markers p16 and p21. Further, the senescent MSCs exhibited increased adipogenesis capacity and decreased osteogenesis capacity as well as a senescence-associated secretory phenotype characterized by increased expression of several inflammatory factors. Forskolin-associated MSC senescence was mainly caused by oxidative stress-induced disruption of mitochondrial metabolism, and the senescent MSCs had high levels of reactive oxygen species and reduced sirtuin gene expression. Lastly, we found that cAMP inhibitor SQ22536 protects MSCs from forskolin-induced senescence and senescence-related inflammatory phenotype. Our results indicate that forskolin can cause senescence of human MSCs through oxidative stress-induced mitochondrial metabolic dysfunction, and thus the results provide a basis for developing strategies for improving the quality and efficacy of cultured MSCs for clinical use.
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Affiliation(s)
- Qiaoling Wang
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College; Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences; Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy (BZ0381), Beijing, People's Republic of China
| | - Xiaodong Su
- Brain Tumor Research Center, Beijing Neurosurgical Institute, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing Laboratory of Biomedical Materials, Beijing, People's Republic of China
| | - Rongjia Zhu
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College; Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences; Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy (BZ0381), Beijing, People's Republic of China
| | - Robert Chunhua Zhao
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College; Center for Excellence in Tissue Engineering, Chinese Academy of Medical Sciences; Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy (BZ0381), Beijing, People's Republic of China.,School of Life Sciences, Shanghai University, Shanghai, People's Republic of China
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Skrzypek K, Adamek G, Kot M, Badyra B, Majka M. Progression and Differentiation of Alveolar Rhabdomyosarcoma Is Regulated by PAX7 Transcription Factor-Significance of Tumor Subclones. Cells 2021; 10:1870. [PMID: 34440639 PMCID: PMC8391953 DOI: 10.3390/cells10081870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 12/15/2022] Open
Abstract
Rhabdomyosarcoma (RMS), is the most frequent soft tissue tumor in children that originates from disturbances in differentiation process. Mechanisms leading to the development of RMS are still poorly understood. Therefore, by analysis of two RMS RH30 cell line subclones, one subclone PAX7 negative, while the second one PAX7 positive, and comparison with other RMS cell lines we aimed at identifying new mechanisms crucial for RMS progression. RH30 subclones were characterized by the same STR profile, but different morphology, rate of proliferation, migration activity and chemotactic abilities in vitro, as well as differences in tumor morphology and growth in vivo. Our analysis indicated a different level of expression of adhesion molecules (e.g., from VLA and ICAM families), myogenic microRNAs, such as miR-206 and transcription factors, such as MYOD, MYOG, SIX1, and ID. Silencing of PAX7 transcription factor with siRNA confirmed the crucial role of PAX7 transcription factor in proliferation, differentiation and migration of RMS cells. To conclude, our results suggest that tumor cell lines with the same STR profile can produce subclones that differ in many features and indicate crucial roles of PAX7 and ID proteins in the development of RMS.
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Affiliation(s)
| | | | | | | | - Marcin Majka
- Department of Transplantation, Faculty of Medicine, Institute of Pediatrics, Jagiellonian University Medical College, 30-663 Krakow, Poland; (G.A.); (M.K.); (B.B.)
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Resveratrol and exercise combined to treat functional limitations in late life: A pilot randomized controlled trial. Exp Gerontol 2020; 143:111111. [PMID: 33068691 DOI: 10.1016/j.exger.2020.111111] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/17/2020] [Accepted: 10/04/2020] [Indexed: 12/26/2022]
Abstract
PURPOSE To evaluate the safety and feasibility of combining exercise (EX) and resveratrol to treat older adults with physical function limitations. METHODS Three-arm, two-site pilot randomized, controlled trial (RCT) for community-dwelling adults (N = 60), 71.8 ± 6.3 years of age with functional limitations. Participants were randomized to receive either 12 weeks of (1) EX + placebo [EX0], (2) EX + 500 mg/day resveratrol [EX500], or (3) EX + 1000 mg/day resveratrol [EX1000]. EX consisted of two sessions a week for 12 weeks of center-based walking and whole-body resistance training. Safety was assessed through adverse events and feasibility through exercise session and supplement (placebo, or resveratrol) protocol adherence. Outcome measures included a battery of indices of physical function as well as skeletal muscle mitchondrial function. Data were adjusted for age and gender using the Intent-To-Treat approach. RESULTS Adverse event frequency and type were similar between groups (n = 8 EX0, n = 12 EX500, and n = 7 EX1000). Overall, 85% of participants met the supplement adherence via pill counts while 82% met the exercise session adherence. Adjusted within group mean differences (95% confidence interval) from week 0 to 12 for gait speed ranged from -0.04 (EX0: -0.1, 0.03) m/s to 0.04 (EX1000: -0.02, 0.11) and the six-minute walk test mean differences were 9.45 (EX0: -9.02, 27.7), 22.9 (EX500: 4.18, 41.6), and 33.1 (EX1000: 13.8, 52.4) meters. Unadjusted mean differences for citrate synthase were -0.80 (EX0: -15.45, 13.84), -1.38 (EX500: -12.16, 9.39), and 7.75 (EX1000: -4.68, 20.18) mU/mg. COX activity mean within group changes ranged from -0.05 (EX0) to 0.06 (EX500) k/s/mg. Additional outcomes are detailed in the text. CONCLUSION The pilot RCT indicated that combined EX + resveratrol was safe and feasible for older adults with functional limitations and may improve skeletal muscle mitochondrial function and mobility-related indices of physical function. A larger trial appears warranted and is needed to formally test these hypotheses.
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Harper SA, Baptista LC, Roberts LM, Wherry SJ, Boxer RS, Hildreth KL, Seay RS, Allman PH, Carter CS, Aban I, Kohrt WM, Buford TW. Angiotensin Converting Enzyme Inhibitors Combined with Exercise for Hypertensive Seniors (The ACES Trial): Study Protocol of a Randomized Controlled Trial. Front Med (Lausanne) 2020; 6:327. [PMID: 32039215 PMCID: PMC6988302 DOI: 10.3389/fmed.2019.00327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/19/2019] [Indexed: 01/13/2023] Open
Abstract
Prior evidence suggests that the choice of antihypertensive medication may influence functional status among older adults with hypertension, particularly in conjunction with exercise. In particular, angiotensin converting enzyme (ACE) inhibitors have shown potential to positively influence function. However, randomized, controlled trials are needed to confirm this hypothesis. This paper outlines an RCT designed to determine if choice of first-line antihypertensive medication influences functional and cardiovascular risk factor responses to exercise among older adults with hypertension. Two hundred and thirteen inactive, community-dwelling adults ≥60 years of age with hypertension and functional limitations will be recruited to engage in a 32-week intervention study. Participants will be randomized to one of three first-line antihypertensive agents: (1) the ACE inhibitor perindopril, (2) the AT1 receptor antagonist losartan, or (3) the thiazide diuretic hydrochlorothiazide (HCTZ). Six weeks after randomization, participants will begin a 20-week structured aerobic exercise intervention. Participants will perform two 45-min center-based sessions coupled with 60 min of home-based walking per week. The primary aim is to determine if perindopril improves self-paced gait speed when compared with losartan and HCTZ. The secondary aim is to determine the relative effect of perindopril on secondary outcomes such as: (a) exercise capacity, (b) body mass and composition, and (c) circulating indices of cardiovascular risk. This RCT is expected to identify differential effects of first-line antihypertensive medications when combined with physical exercise thus have potential implications for antihypertensive prescription guidelines for older adults. Clinical Trial Registration: www.ClinicalTrials.gov, identifier: NCT03295734.
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Affiliation(s)
- Sara A. Harper
- Division of Gerontology, Geriatrics and Palliative Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Liliana C. Baptista
- Division of Gerontology, Geriatrics and Palliative Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Lisa M. Roberts
- Division of Gerontology, Geriatrics and Palliative Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sarah J. Wherry
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO, United States
| | - Rebecca S. Boxer
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO, United States
- Kaiser Permanente Colorado, Institute for Health Research, Aurora, CO, United States
| | - Kerry L. Hildreth
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO, United States
| | - Regina S. Seay
- Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - P. Hunter Allman
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Christy S. Carter
- Division of Gerontology, Geriatrics and Palliative Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Inmaculada Aban
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Wendy M. Kohrt
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO, United States
| | - Thomas W. Buford
- Division of Gerontology, Geriatrics and Palliative Care, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL, United States
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Sun X, Chen WD, Wang YD. DAF-16/FOXO Transcription Factor in Aging and Longevity. Front Pharmacol 2017; 8:548. [PMID: 28878670 PMCID: PMC5572328 DOI: 10.3389/fphar.2017.00548] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 08/04/2017] [Indexed: 02/01/2023] Open
Abstract
Aging is associated with age-related diseases and an increase susceptibility of cancer. Dissecting the molecular mechanisms that underlie aging and longevity would contribute to implications for preventing and treating the age-dependent diseases or cancers. Multiple signaling pathways such as the insulin/IGF-1 signaling pathway, TOR signaling, AMPK pathway, JNK pathway and germline signaling have been found to be involved in aging and longevity. And DAF-16/FOXO, as a key transcription factor, could integrate different signals from these pathways to modulate aging, and longevity via shuttling from cytoplasm to nucleus. Hence, understanding how DAF-16/FOXO functions will be pivotal to illustrate the processes of aging and longevity. Here, we summarized how DAF-16/FOXO receives signals from these pathways to affect aging and longevity. We also briefly discussed the transcriptional regulation and posttranslational modifications of DAF-16/FOXO, its co-factors as well as its potential downstream targets participating in lifespan according to the published data in C. elegans and in mammals, and in most cases, we may focus on the studies in C. elegans which has been considered to be a very good animal model for longevity research.
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Affiliation(s)
- Xiaojuan Sun
- Key Laboratory of Receptor-Mediated Gene Regulation and Drug Discovery, School of Medicine, Henan UniversityKaifeng, China
| | - Wei-Dong Chen
- Key Laboratory of Receptor-Mediated Gene Regulation and Drug Discovery, School of Medicine, Henan UniversityKaifeng, China
| | - Yan-Dong Wang
- State Key Laboratory of Chemical Resource Engineering, College of Life Science and Technology, Beijing University of Chemical TechnologyBeijing, China
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Levinger P, Caldow MK, Bartlett JR, Peake JM, Smith C, Cameron-Smith D, Levinger I. The level of FoxO1 and IL-15 in skeletal muscle, serum and synovial fluid in people with knee osteoarthritis: a case control study. Osteoporos Int 2016; 27:2137-43. [PMID: 26762130 DOI: 10.1007/s00198-015-3473-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 12/21/2015] [Indexed: 12/24/2022]
Abstract
UNLABELLED The molecular regulation of muscle function in knee osteoarthritis is unclear. Elevated muscle atrophy regulation marker expression was associated with reduced muscle strength in knee osteoarthritis. The level of protein expression appears to be different between muscle, knee joint and serum, suggesting that inflammation is regulated differently within these tissues. INTRODUCTION Impaired muscle function is common in knee osteoarthritis (OA). Numerous biochemical molecules have been implicated in the development of OA; however, these have only been identified in the joint and serum. We compared the expression of interleukin-15 (IL-15) and Forkhead box protein-O1 (FoxO1) in muscle of patients with knee OA and asymptomatic individuals and examined whether IL-15 was also present in the joint and serum. METHODS Muscle and blood samples were collected from 19 patients with knee OA and 10 age-matched asymptomatic individuals. Synovial fluid and muscle biopsies were collected from the OA group during knee replacement surgery. IL-15 and FoxO1 were measured in the skeletal muscle. IL-15 abundance was also analysed in the serum of both groups and synovial fluid from the OA group. Knee extensor strength was measured and correlated with IL-15 and FoxO1 in the muscle. RESULTS FoxO1 protein expression was higher (p = 0.04), whereas IL-15 expression was lower (p = 0.02) in the muscle of the OA group. Strength was also lower in the OA group and was inversely correlated with FoxO1 expression. No correlation was found between IL-15 in the joint, muscle or serum. CONCLUSION Skeletal muscle, particularly the quadriceps, is affected in people with knee OA where elevated FoxO1 protein expression was associated with reduced muscle strength. While IL-15 protein expression in the muscle was lower in the knee OA group, no correlation was found between the expression of IL-15 protein in the muscle, joint and serum, which suggests that inflammation is regulated differently within these tissues. Australian Clinical Trials Registry (ACTR) number: ACTRN12613000467730 ( http://www.anzctr.org.au/TrialSearch.aspx?searchTxt=ACTRN12613000467730&isBasic=True ).
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Affiliation(s)
- P Levinger
- Clinical Exercise Science Program, Institute of Sport, Exercise & Active Living (ISEAL), Victoria University, Melbourne, Victoria, Australia.
- Lower Extremity and Gait Studies Program, School of Allied Health, La Trobe University, Bundoora, Melbourne, Victoria, Australia.
| | - M K Caldow
- Basic and Clinical Myology Laboratory, Department of Physiology, University of Melbourne, Parkville, Melbourne, Australia
| | - J R Bartlett
- Warringal Private Medical Centre, Heidelberg, Melbourne, Victoria, Australia
| | - J M Peake
- School of Biomedical Sciences and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - C Smith
- Clinical Exercise Science Program, Institute of Sport, Exercise & Active Living (ISEAL), Victoria University, Melbourne, Victoria, Australia
| | - D Cameron-Smith
- Liggins Institute, The University of Auckland, Auckland, New Zealand
| | - I Levinger
- Clinical Exercise Science Program, Institute of Sport, Exercise & Active Living (ISEAL), Victoria University, Melbourne, Victoria, Australia
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Libardi CA, Souza TMF, Conceição MS, Bonganha V, Chacon-Mikahil MPT, Cavaglieri CR, de Moraes AC, Ugrinowitsch C. Electromechanical delay of the knee extensor muscles: comparison among young, middle-age and older individuals. Clin Physiol Funct Imaging 2014; 35:245-9. [PMID: 24797398 DOI: 10.1111/cpf.12157] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 04/02/2014] [Indexed: 11/30/2022]
Abstract
The aim of this study was to investigate the effects of the ageing process in the electromechanical delay (EMD), rate of torque development (RTD) and peak torque (PT) of the knee extensor muscles. The volunteers were assigned to three groups: young group (YG - 23·44 ± 4·74 years, 78·14 ± 15·11 kg, 1·72 ± 0·05 m), middle-aged group (MAG - 49·56 ± 6·06 years, 72·01 ± 14·07 kg, 1·67 ± 0·06 m) and elderly group (EG - 68·67 ± 9·06 years, 67·96 ± 7·60 kg, 1·64 ± 0·07 m). The PT and RTD were assessed during maximal voluntary ballistic isometric contractions (MVBIC) in the isokinetic dynamometer. Muscle electrical activity was recorded (EMG) during MVBIC in the vastus lateralis (VL), vastus medialis (VM) and rectus femoris (RF) muscles. The EMD was calculated during the MVBIC, through the time interval between the EMG onset and torque onset. The PT and RTD were higher in the YG than in the MAG (P = 0·02; P = 0·01, respectively) and in the EG (P = 0·002; P = 0·0004, respectively). There were no significant differences in EMD among the three age groups for the VL, VM and RF (P>0·05) muscles. We conclude that age affects the PT and RTD, but not EMD of the VL, VM and RF muscles.
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Affiliation(s)
- Cleiton A Libardi
- Department of Physical Education (DEFMH), Center of Biological and Health Sciences (CCBS), Federal University of São Carlos (UFSCar), São Carlos, Brazil.,Group of Study and Research in Neuromuscular Adaptations to Resistance Training, School of Physical Education and Sports, University of São Paulo-SP, São Paulo, Brazil.,Laboratory of Exercise Physiology, School of Physical Education, State University of Campinas-SP, Campinas, Brazil
| | - Thiago M F Souza
- Laboratory of Exercise Physiology, School of Physical Education, State University of Campinas-SP, Campinas, Brazil
| | - Miguel S Conceição
- Laboratory of Exercise Physiology, School of Physical Education, State University of Campinas-SP, Campinas, Brazil
| | - Valéria Bonganha
- Laboratory of Exercise Physiology, School of Physical Education, State University of Campinas-SP, Campinas, Brazil
| | | | - Cláudia R Cavaglieri
- Laboratory of Exercise Physiology, School of Physical Education, State University of Campinas-SP, Campinas, Brazil
| | - Antonio C de Moraes
- Laboratory of Electromyographic Studies, School of Physical Education, State University of Campinas-SP, Campinas, Brazil
| | - Carlos Ugrinowitsch
- Group of Study and Research in Neuromuscular Adaptations to Resistance Training, School of Physical Education and Sports, University of São Paulo-SP, São Paulo, Brazil
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Bansal A, Kwon ES, Conte D, Liu H, Gilchrist MJ, MacNeil LT, Tissenbaum HA. Transcriptional regulation of Caenorhabditis elegans FOXO/DAF-16 modulates lifespan. LONGEVITY & HEALTHSPAN 2014; 3:5. [PMID: 24834345 PMCID: PMC4022319 DOI: 10.1186/2046-2395-3-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 04/04/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND Insulin/IGF-1 signaling plays a central role in longevity across phylogeny. In C. elegans, the forkhead box O (FOXO) transcription factor, DAF-16, is the primary target of insulin/IGF-1 signaling, and multiple isoforms of DAF-16 (a, b, and d/f) modulate lifespan, metabolism, dauer formation, and stress resistance. Thus far, across phylogeny modulation of mammalian FOXOs and DAF-16 have focused on post-translational regulation with little focus on transcriptional regulation. In C. elegans, we have previously shown that DAF-16d/f cooperates with DAF-16a to promote longevity. In this study, we generated transgenic strains expressing near-endogenous levels of either daf-16a or daf-16d/f, and examined temporal expression of the isoforms to further define how these isoforms contribute to lifespan regulation. RESULTS Here, we show that DAF-16a is sensitive both to changes in gene dosage and to alterations in the level of insulin/IGF-1 signaling. Interestingly, we find that as worms age, the intestinal expression of daf-16d/f but not daf-16a is dramatically upregulated at the level of transcription. Preventing this transcriptional upregulation shortens lifespan, indicating that transcriptional regulation of daf-16d/f promotes longevity. In an RNAi screen of transcriptional regulators, we identify elt-2 (GATA transcription factor) and swsn-1 (core subunit of SWI/SNF complex) as key modulators of daf-16d/f gene expression. ELT-2 and another GATA factor, ELT-4, promote longevity via both DAF-16a and DAF-16d/f while the components of SWI/SNF complex promote longevity specifically via DAF-16d/f. CONCLUSIONS Our findings indicate that transcriptional control of C. elegans FOXO/daf-16 is an essential regulatory event. Considering the conservation of FOXO across species, our findings identify a new layer of FOXO regulation as a potential determinant of mammalian longevity and age-related diseases such as cancer and diabetes.
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Affiliation(s)
- Ankita Bansal
- Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Eun-Soo Kwon
- Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA.,Laboratory of Cell Signaling, Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 306-809, Korea
| | - Darryl Conte
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA 01605, USA.,Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Haibo Liu
- Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Michael J Gilchrist
- MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London, UK
| | - Lesley T MacNeil
- Program in Systems Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Heidi A Tissenbaum
- Program in Gene Function and Expression, University of Massachusetts Medical School, Worcester, MA 01605, USA.,Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA
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