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Maloji Rao VH, Vasquez V, Kodavati M, Mitra J, Provasek V, Voh A, Liopo A, Derry PJ, Mikheve A, Rostomily RC, Horner PJ, Tour JM, Britz GW, Kent TA, Hegde M. Hemin-Induced Transient Senescence Via DNA Damage Response: A Neuroprotective Mechanism Against Ferroptosis in Intracerebral Hemorrhage. RESEARCH SQUARE 2024:rs.3.rs-4686841. [PMID: 39108479 PMCID: PMC11302695 DOI: 10.21203/rs.3.rs-4686841/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/12/2024]
Abstract
Intracerebral hemorrhage (ICH) poses acute fatality and long-term neurological risks due to hemin and iron accumulation from hemoglobin breakdown. Our observation that hemin induces DNA double-strand breaks (DSBs), prompting a senescence-like phenotype in neurons, necessitating deeper exploration of cellular responses. Using experimental ICH models and human ICH patient tissue, we elucidate hemin-mediated DNA damage response (DDR) inducing transient senescence and delayed expression of heme oxygenase (HO-1). HO-1 co-localizes with senescence-associated β-Galactosidase (SA-β-Gal) in ICH patient tissues, emphasizing clinical relevance of inducible HO-1 expression in senescent cells. We reveal a reversible senescence state protective against acute cell death by hemin, while repeat exposure leads to long-lasting senescence. Inhibiting early senescence expression increases cell death, supporting the protective role of senescence against hemin toxicity. Hemin-induced senescence is attenuated by a pleiotropic carbon nanoparticle that is a catalytic mimic of superoxide dismutase, but this treatment increased lipid peroxidation, consistent with ferroptosis from hemin breakdown released iron. When coupled with iron chelator deferoxamine (DEF), the nanoparticle reduces hemin-induced senescence and upregulates factors protecting against ferroptosis. Our study suggests transient senescence induced by DDR as an early potential neuroprotective mechanism in ICH, but the risk or iron-related toxicity supports a multi-pronged therapeutic approach.
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Affiliation(s)
- Vikas H. Maloji Rao
- Division of DNA Repair Research within the, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Velmarini Vasquez
- Division of DNA Repair Research within the, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Manohar Kodavati
- Division of DNA Repair Research within the, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Joy Mitra
- Division of DNA Repair Research within the, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Vincent Provasek
- Division of DNA Repair Research within the, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Anh Voh
- Center for Genomics and Precision Medicine, Department of Translational Medical Sciences, Institute of Biosciences and Technology, College of Medicine, Texas A&M Health Science Center, Houston, TX 77030, USA
| | - Anton Liopo
- Center for Genomics and Precision Medicine, Department of Translational Medical Sciences, Institute of Biosciences and Technology, College of Medicine, Texas A&M Health Science Center, Houston, TX 77030, USA
| | - Paul J. Derry
- Center for Genomics and Precision Medicine, Department of Translational Medical Sciences, Institute of Biosciences and Technology, College of Medicine, Texas A&M Health Science Center, Houston, TX 77030, USA
| | - Andrei Mikheve
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA
| | - Robert C. Rostomily
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA
| | - Philip J. Horner
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA
| | - James M. Tour
- NanoCarbon Center and the Rice Institute for Advanced Materials, Department of Chemistry, Rice University, Houston, TX 77030, USA
| | - Gavin W. Britz
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA
| | - Thomas A. Kent
- Center for Genomics and Precision Medicine, Department of Translational Medical Sciences, Institute of Biosciences and Technology, College of Medicine, Texas A&M Health Science Center, Houston, TX 77030, USA
- Stanley Appel Department of Neurology and Department of Radiology, Houston Methodist Institute of Academic Medicine and Research Institute, Houston, TX 77030, USA
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | - Muralidhar Hegde
- Division of DNA Repair Research within the, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA
- Department of Neuroscience, Weill Cornell Medical College, New York, NY 10065, USA
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Kirchner VA, Badshah JS, Kyun Hong S, Martinez O, Pruett TL, Niedernhofer LJ. Effect of Cellular Senescence in Disease Progression and Transplantation: Immune Cells and Solid Organs. Transplantation 2024; 108:1509-1523. [PMID: 37953486 PMCID: PMC11089077 DOI: 10.1097/tp.0000000000004838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Aging of the world population significantly impacts healthcare globally and specifically, the field of transplantation. Together with end-organ dysfunction and prolonged immunosuppression, age increases the frequency of comorbid chronic diseases in transplant candidates and recipients, contributing to inferior outcomes. Although the frequency of death increases with age, limited use of organs from older deceased donors reflects the concerns about organ durability and inadequate function. Cellular senescence (CS) is a hallmark of aging, which occurs in response to a myriad of cellular stressors, leading to activation of signaling cascades that stably arrest cell cycle progression to prevent tumorigenesis. In aging and chronic conditions, senescent cells accumulate as the immune system's ability to clear them wanes, which is causally implicated in the progression of chronic diseases, immune dysfunction, organ damage, decreased regenerative capacity, and aging itself. The intimate interplay between senescent cells, their proinflammatory secretome, and immune cells results in a positive feedback loop, propagating chronic sterile inflammation and the spread of CS. Hence, senescent cells in organs from older donors trigger the recipient's alloimmune response, resulting in the increased risk of graft loss. Eliminating senescent cells or attenuating their inflammatory phenotype is a novel, potential therapeutic target to improve transplant outcomes and expand utilization of organs from older donors. This review focuses on the current knowledge about the impact of CS on circulating immune cells in the context of organ damage and disease progression, discusses the impact of CS on abdominal solid organs that are commonly transplanted, and reviews emerging therapies that target CS.
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Affiliation(s)
- Varvara A. Kirchner
- Division of Abdominal Transplantation, Department of Surgery, Stanford University, Stanford, CA
| | - Joshua S. Badshah
- Division of Abdominal Transplantation, Department of Surgery, Stanford University, Stanford, CA
| | - Suk Kyun Hong
- Division of Abdominal Transplantation, Department of Surgery, Stanford University, Stanford, CA
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Olivia Martinez
- Division of Abdominal Transplantation, Department of Surgery, Stanford University, Stanford, CA
| | - Timothy L. Pruett
- Division of Transplantation, Department of Surgery, University of Minnesota, Minneapolis, MN
| | - Laura J. Niedernhofer
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Medical School, Minneapolis, MN
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Chen X, Walton K, Brodaty H, Chalton K. Polyphenols and Diets as Current and Potential Nutrition Senotherapeutics in Alzheimer's Disease: Findings from Clinical Trials. J Alzheimers Dis 2024:JAD231222. [PMID: 38875032 DOI: 10.3233/jad-231222] [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: 06/16/2024]
Abstract
Cellular senescence, a hallmark of aging, plays an important role in age-related conditions among older adults. Targeting senescent cells and its phenotype may provide a promising strategy to delay the onset or progression of Alzheimer's disease (AD). In this review article, we investigated efficacy and safety of nutrition senotherapy in AD, with a focus on the role of polyphenols as current and potential nutrition senotherapeutic agents, as well as relevant dietary patterns. Promising results with neuroprotective effects of senotherapeutic agents such as quercetin, resveratrol, Epigallocatechin-gallate, curcumin and fisetin were reported from preclinical studies. However, in-human trials remain limited, and findings were inconclusive. In future, nutrition senotherapeutic agents should be studied both individually and within dietary patterns, through the perspective of cellular senescence and AD. Further studies are warranted to investigate bioavailability, dosing regimen, long term effects of nutrition senotherapy and provide better understanding of the underlying mechanisms. Collaboration between researchers needs to be established, and methodological limitations of current studies should be addressed.
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Affiliation(s)
- Xi Chen
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, NSW, Australia
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, NSW, Australia
| | - Karen Walton
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, NSW, Australia
| | - Henry Brodaty
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, NSW, Australia
| | - Karen Chalton
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, NSW, Australia
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Zhang Y, Huang S, Xie B, Zhong Y. Aging, Cellular Senescence, and Glaucoma. Aging Dis 2024; 15:546-564. [PMID: 37725658 PMCID: PMC10917531 DOI: 10.14336/ad.2023.0630-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 06/30/2023] [Indexed: 09/21/2023] Open
Abstract
Aging is one of the most serious risk factors for glaucoma, and according to age-standardized prevalence, glaucoma is the second leading cause of legal blindness worldwide. Cellular senescence is a hallmark of aging that is defined by a stable exit from the cell cycle in response to cellular damage and stress. The potential mechanisms underlying glaucomatous cellular senescence include oxidative stress, DNA damage, mitochondrial dysfunction, defective autophagy/mitophagy, and epigenetic modifications. These phenotypes interact and generate a sufficiently stable network to maintain the cell senescent state. Senescent trabecular meshwork (TM) cells, retinal ganglion cells (RGCs) and vascular endothelial cells reportedly accumulate with age and stress and may contribute to glaucoma pathologies. Therapies targeting the suppression or elimination of senescent cells have been found to ameliorate RGC death and improve vision in glaucoma models, suggesting the pivotal role of cellular senescence in the pathophysiology of glaucoma. In this review, we explore the biological links between aging and glaucoma, specifically delving into cellular senescence. Moreover, we summarize the current data on cellular senescence in key target cells associated with the development and clinical phenotypes of glaucoma. Finally, we discuss the therapeutic potential of targeting cellular senescence for the management of glaucoma.
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Affiliation(s)
- Yumeng Zhang
- Department of Ophthalmology, Ruijin Hospital Affiliated Medical School, Shanghai Jiaotong University, Shanghai 200025, China
| | - Shouyue Huang
- Department of Ophthalmology, Ruijin Hospital Affiliated Medical School, Shanghai Jiaotong University, Shanghai 200025, China
| | - Bing Xie
- Correspondence should be addressed to: Dr. Yisheng Zhong () and Bing Xie (), Department of Ophthalmology, Ruijin Hospital Affiliated Medical School, Shanghai Jiaotong University, Shanghai 200025, China
| | - Yisheng Zhong
- Correspondence should be addressed to: Dr. Yisheng Zhong () and Bing Xie (), Department of Ophthalmology, Ruijin Hospital Affiliated Medical School, Shanghai Jiaotong University, Shanghai 200025, China
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Yu A, Yu R, Liu H, Ge C, Dang W. SIRT1 safeguards adipogenic differentiation by orchestrating anti-oxidative responses and suppressing cellular senescence. GeroScience 2024; 46:1107-1127. [PMID: 37420111 PMCID: PMC10828476 DOI: 10.1007/s11357-023-00863-w] [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: 08/24/2022] [Accepted: 06/23/2023] [Indexed: 07/09/2023] Open
Abstract
Adipose tissue is an important endocrine organ that regulates metabolism, immune response and aging in mammals. Healthy adipocytes promote tissue homeostasis and longevity. SIRT1, a conserved NAD+-dependent deacetylase, negatively regulates adipogenic differentiation by deacetylating and inhibiting PPAR-γ. However, knocking out SIRT1 in mesenchymal stem cells (MSCs) in mice not only causes defects in osteogenesis, but also results in the loss of adipose tissues, suggesting that SIRT1 is also important for adipogenic differentiation.Here, we report that severe impairment of SIRT1 function in MSCs caused significant defects and cellular senescence during adipogenic differentiation. These were observed only when inhibiting SIRT1 during adipogenesis, not when SIRT1 inhibition was imposed before or after adipogenic differentiation. Cells generate high levels of reactive oxygen species (ROS) during adipogenic differentiation. Inhibiting SIRT1 during differentiation resulted in impaired oxidative stress response. Increased oxidative stress with H2O2 or SOD2 knockdown phenocopied SIRT1 inhibition. Consistent with these observations, we found increased p16 levels and senescence associated β-galactosidase activities in the inguinal adipose tissue of MSC-specific SIRT1 knockout mice. Furthermore, previously identified SIRT1 targets involved in oxidative stress response, FOXO3 and SUV39H1 were both required for healthy adipocyte formation during differentiation. Finally, senescent adipocytes produced by SIRT1 inhibition showed decreased Akt phosphorylation in response to insulin, a lack of response to adipocytes browning signals, and increased survival for cancer cells under chemotherapy drug treatments. These findings suggest a novel safeguard function for SIRT1 in regulating MSC adipogenic differentiation, distinct from its roles in suppressing adipogenic differentiation.
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Affiliation(s)
- An Yu
- Yunnan Key Laboratory for Basic Research On Bone and Joint Diseases &, Yunnan Stem Cell Translational Research Center, Kunming University, Kunming, 650214, Yunnan, China
- Baylor College of Medicine, Huffington Center On Aging, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Ruofan Yu
- Baylor College of Medicine, Huffington Center On Aging, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Haiying Liu
- Baylor College of Medicine, Huffington Center On Aging, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Chenliang Ge
- Yunnan Key Laboratory for Basic Research On Bone and Joint Diseases &, Yunnan Stem Cell Translational Research Center, Kunming University, Kunming, 650214, Yunnan, China
| | - Weiwei Dang
- Baylor College of Medicine, Huffington Center On Aging, 1 Baylor Plaza, Houston, TX, 77030, USA.
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Graïc JM, Corain L, Finos L, Vadori V, Grisan E, Gerussi T, Orekhova K, Centelleghe C, Cozzi B, Peruffo A. Age-related changes in the primary auditory cortex of newborn, adults and aging bottlenose dolphins ( Tursiops truncatus) are located in the upper cortical layers. Front Neuroanat 2024; 17:1330384. [PMID: 38250022 PMCID: PMC10796513 DOI: 10.3389/fnana.2023.1330384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/06/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction The auditory system of dolphins and whales allows them to dive in dark waters, hunt for prey well below the limit of solar light absorption, and to communicate with their conspecific. These complex behaviors require specific and sufficient functional circuitry in the neocortex, and vicarious learning capacities. Dolphins are also precocious animals that can hold their breath and swim within minutes after birth. However, diving and hunting behaviors are likely not innate and need to be learned. Our hypothesis is that the organization of the auditory cortex of dolphins grows and mature not only in the early phases of life, but also in adults and aging individuals. These changes may be subtle and involve sub-populations of cells specificall linked to some circuits. Methods In the primary auditory cortex of 11 bottlenose dolphins belonging to three age groups (calves, adults, and old animals), neuronal cell shapes were analyzed separately and by cortical layer using custom computer vision and multivariate statistical analysis, to determine potential minute morphological differences across these age groups. Results The results show definite changes in interneurons, characterized by round and ellipsoid shapes predominantly located in upper cortical layers. Notably, neonates interneurons exhibited a pattern of being closer together and smaller, developing into a more dispersed and diverse set of shapes in adulthood. Discussion This trend persisted in older animals, suggesting a continuous development of connections throughout the life of these marine animals. Our findings further support the proposition that thalamic input reach upper layers in cetaceans, at least within a cortical area critical for their survival. Moreover, our results indicate the likelihood of changes in cell populations occurring in adult animals, prompting the need for characterization.
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Affiliation(s)
- Jean-Marie Graïc
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Livio Corain
- Department of Management and Engineering, University of Padova, Vicenza, Italy
| | - Livio Finos
- Department of Statistical Sciences, University of Padova, Padua, Italy
| | - Valentina Vadori
- Department of Computer Science and Informatics, London South Bank University, London, United Kingdom
| | - Enrico Grisan
- Department of Computer Science and Informatics, London South Bank University, London, United Kingdom
| | - Tommaso Gerussi
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Ksenia Orekhova
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Cinzia Centelleghe
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Bruno Cozzi
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
| | - Antonella Peruffo
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, Italy
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Vellingiri B, Balasubramani K, Iyer M, Raj N, Elangovan A, Song K, Yeo HC, Jayakumar N, Kinoshita M, Thangarasu R, Narayanasamy A, Dayem AA, Prajapati VK, Gopalakrishnan AV, Cho SG. Role of Telomeres and Telomerase in Parkinson's Disease-A New Theranostics? Adv Biol (Weinh) 2023; 7:e2300097. [PMID: 37590305 DOI: 10.1002/adbi.202300097] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/19/2023] [Indexed: 08/19/2023]
Abstract
Parkinson's disease (PD) is a complex condition that is significantly influenced by oxidative stress and inflammation. It is also suggested that telomere shortening (TS) is regulated by oxidative stress which leads to various diseases including age-related neurodegenerative diseases like PD. Thus, it is anticipated that PD would result in TS of peripheral blood mononuclear cells (PBMCs). Telomeres protect the ends of eukaryotic chromosomes preserving them against fusion and destruction. The TS is a normal process because DNA polymerase is unable to replicate the linear ends of the DNA due to end replication complications and telomerase activity in various cell types counteracts this process. PD is usually observed in the aged population and progresses over time therefore, disparities among telomere length in PBMCs of PD patients are recorded and it is still a question whether it has any useful role. Here, the likelihood of telomere attrition in PD and its implications concerning microglia activation, ageing, oxidative stress, and the significance of telomerase activators are addressed. Also, the possibility of telomeres and telomerase as a diagnostic and therapeutic biomarker in PD is discussed.
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Affiliation(s)
- Balachandar Vellingiri
- Stem Cell and Regenerative Medicine/Translational Research, Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Kiruthika Balasubramani
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Mahalaxmi Iyer
- Department of Biotechnology, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore, Tamil Nadu, 641021, India
| | - Neethu Raj
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Ajay Elangovan
- Stem Cell and Regenerative Medicine/Translational Research, Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Kwonwoo Song
- Department of Stem Cell and Regenerative Biotechnology, Molecular and Cellular Reprogramming Center and Institute of Advanced Regenerative Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Han-Cheol Yeo
- Department of Stem Cell and Regenerative Biotechnology, Molecular and Cellular Reprogramming Center and Institute of Advanced Regenerative Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Namitha Jayakumar
- Department of Biotechnology, Sri Ramakrishna College of Arts and Science, Coimbatore, Tamil Nadu, 641006, India
| | - Masako Kinoshita
- Department of Neurology, National Hospital Organization Utano National Hospital, Ondoyama-Cho, Narutaki, Ukyo-Ku, Kyoto, 616-8255, Japan
| | - Ravimanickam Thangarasu
- Department of Zoology, School of Science, Tamil Nadu Open University, Saidapet, Chennai, 600015, India
| | - Arul Narayanasamy
- Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Ahmed Abdal Dayem
- Department of Stem Cell and Regenerative Biotechnology, Molecular and Cellular Reprogramming Center and Institute of Advanced Regenerative Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Vijay Kumar Prajapati
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi, 110021, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Ssang-Goo Cho
- Department of Stem Cell and Regenerative Biotechnology, Molecular and Cellular Reprogramming Center and Institute of Advanced Regenerative Science, Konkuk University, Seoul, 05029, Republic of Korea
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Sharma K, Sarkar J, Trisal A, Ghosh R, Dixit A, Singh AK. Targeting mitochondrial dysfunction to salvage cellular senescence for managing neurodegeneration. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 136:309-337. [PMID: 37437982 DOI: 10.1016/bs.apcsb.2023.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Aging is an inevitable phenomenon that causes a decline in bodily functions over time. One of the most important processes that play a role in aging is senescence. Senescence is characterized by accumulation of cells that are no longer functional but elude the apoptotic pathway. These cells secrete inflammatory molecules that comprise the senescence associated secretory phenotype (SASP). Several essential molecules such as p53, Rb, and p16INK4a regulate the senescence process. Mitochondrial regulation has been found to play an important role in senescence. Reactive oxygen species (ROS) generated from mitochondria can affect cellular senescence by inducing the persistent DNA damage response, thus stabilizing the senescence. Evidently, senescence plays a major contributory role to the development of age-related neurological disorders. In this chapter, we discuss the role of senescence in the progression and onset of several neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis. Moreover, we also discuss the efficacy of certain molecules like MitoQ, SkQ1, and Latrepirdine that could be proven therapeutics with respect to these disorders by regulating mitochondrial activity.
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Affiliation(s)
- Komal Sharma
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, India
| | - Joyobrata Sarkar
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, India
| | - Anchal Trisal
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, India
| | - Rishika Ghosh
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, India
| | - Anubhuti Dixit
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, India.
| | - Abhishek Kumar Singh
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, India.
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Medina Rangel PX, Cross E, Liu C, Pedigo CE, Tian X, Gutiérrez-Calabrés E, Nagata S, Priyadarshini A, Lerner G, Bunda P, Perincheri S, Gu J, Zhao H, Wang Y, Inoue K, Ishibe S. Cell Cycle and Senescence Regulation by Podocyte Histone Deacetylase 1 and 2. J Am Soc Nephrol 2023; 34:433-450. [PMID: 36414418 PMCID: PMC10103311 DOI: 10.1681/asn.2022050598] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/17/2022] [Accepted: 11/06/2022] [Indexed: 11/24/2022] Open
Abstract
SIGNIFICANCE STATEMENT The loss of integrity of the glomerular filtration barrier results in proteinuria that is often attributed to podocyte loss. Yet how damaged podocytes are lost remains unknown. Germline loss of murine podocyte-associated Hdac1 and Hdac2 ( Hdac1/2 ) results in proteinuria and collapsing glomerulopathy due to sustained double-stranded DNA damage. Hdac1/2 deletion induces loss of podocyte quiescence, cell cycle entry, arrest in G1, and podocyte senescence, observed both in vivo and in vitro . Through the senescence secretory associated phenotype, podocytes secrete proteins that contribute to their detachment. These results solidify the role of HDACs in cell cycle regulation and senescence, providing important clues in our understanding of how podocytes are lost following injury. BACKGROUND Intact expression of podocyte histone deacetylases (HDAC) during development is essential for maintaining a normal glomerular filtration barrier because of its role in modulating DNA damage and preventing premature senescence. METHODS Germline podocyte-specific Hdac1 and 2 ( Hdac1 / 2 ) double-knockout mice were generated to examine the importance of these enzymes during development. RESULTS Podocyte-specific loss of Hdac1 / 2 in mice resulted in severe proteinuria, kidney failure, and collapsing glomerulopathy. Hdac1 / 2 -deprived podocytes exhibited classic characteristics of senescence, such as senescence-associated β-galactosidase activity and lipofuscin aggregates. In addition, DNA damage, likely caused by epigenetic alterations such as open chromatin conformation, not only resulted in podocyte cell-cycle entry as shown in vivo by Ki67 expression and by FUCCI-2aR mice, but also in p21-mediated cell-cycle arrest. Through the senescence secretory associated phenotype, the damaged podocytes secreted proinflammatory cytokines, growth factors, and matrix metalloproteinases, resulting in subsequent podocyte detachment and loss, evidenced by senescent podocytes in urine. CONCLUSIONS Hdac1 / 2 plays an essential role during development. Loss of these genes in double knockout mice leads to sustained DNA damage and podocyte senescence and loss.
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Affiliation(s)
| | - Elizabeth Cross
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Chang Liu
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Christopher E. Pedigo
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Xuefei Tian
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | | | - Soichiro Nagata
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Anupama Priyadarshini
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Gabriel Lerner
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Patricia Bunda
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Sudhir Perincheri
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - Jianlei Gu
- Department of Biostatistics, Yale University School of Public Health, New Haven, Connecticut
| | - Hongyu Zhao
- Department of Biostatistics, Yale University School of Public Health, New Haven, Connecticut
| | - Ying Wang
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Kazunori Inoue
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Shuta Ishibe
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
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10
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Ayala-Guerrero L, Claudio-Galeana S, Furlan-Magaril M, Castro-Obregón S. Chromatin Structure from Development to Ageing. Subcell Biochem 2023; 102:7-51. [PMID: 36600128 DOI: 10.1007/978-3-031-21410-3_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nuclear structure influences genome architecture, which contributes to determine patterns of gene expression. Global changes in chromatin dynamics are essential during development and differentiation, and are one of the hallmarks of ageing. This chapter describes the molecular dynamics of chromatin structure that occur during development and ageing. In the first part, we introduce general information about the nuclear lamina, the chromatin structure, and the 3D organization of the genome. Next, we detail the molecular hallmarks found during development and ageing, including the role of DNA and histone modifications, 3D genome dynamics, and changes in the nuclear lamina. Within the chapter we discuss the implications that genome structure has on the mechanisms that drive development and ageing, and the physiological consequences when these mechanisms fail.
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Affiliation(s)
- Lorelei Ayala-Guerrero
- Departamento de Neurodesarrollo y Fisiología, Instituto de Fisiología Celular, UNAM, Mexico City, Mexico
| | - Sherlyn Claudio-Galeana
- Departamento de Genética Molecular, Instituto de Fisiología Celular, UNAM, Mexico City, Mexico
| | - Mayra Furlan-Magaril
- Departamento de Genética Molecular, Instituto de Fisiología Celular, UNAM, Mexico City, Mexico.
| | - Susana Castro-Obregón
- Departamento de Neurodesarrollo y Fisiología, Instituto de Fisiología Celular, UNAM, Mexico City, Mexico.
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11
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Wong GCN, Chow KHM. DNA Damage Response-Associated Cell Cycle Re-Entry and Neuronal Senescence in Brain Aging and Alzheimer's Disease. J Alzheimers Dis 2023; 94:S429-S451. [PMID: 35848025 PMCID: PMC10473156 DOI: 10.3233/jad-220203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2022] [Indexed: 11/15/2022]
Abstract
Chronological aging is by far the strongest risk factor for age-related dementia and Alzheimer's disease. Senescent cells accumulated in the aging and Alzheimer's disease brains are now recognized as the keys to describing such an association. Cellular senescence is a classic phenomenon characterized by stable cell arrest, which is thought to be applicable only to dividing cells. Emerging evidence indicates that fully differentiated post-mitotic neurons are also capable of becoming senescent, with roles in contributing to both brain aging and disease pathogenesis. The key question that arises is the identity of the upstream triggers and the molecular mechanisms that underly such changes. Here, we highlight the potential role of persistent DNA damage response as the major driver of senescent phenotypes and discuss the current evidence and molecular mechanisms that connect DNA repair infidelity, cell cycle re-entry and terminal fate decision in committing neuronal cell senescence.
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Affiliation(s)
- Genper Chi-Ngai Wong
- School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Hong Kong
| | - Kim Hei-Man Chow
- School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Hong Kong
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12
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The preventive use of resveratrol increases its antioxidant effect by SIRT1 and subclinical anti-inflammatory action in Neuro-2A cells. In Vitro Cell Dev Biol Anim 2022; 58:979-986. [PMID: 36481976 DOI: 10.1007/s11626-022-00719-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/09/2022] [Indexed: 12/13/2022]
Abstract
Currently, the important role of oxidative stress in the aging process and in neurodegenerative diseases has been highlighted, suggesting the beneficial effect of antioxidants as adjuvant therapy. Resveratrol (RSV) is a polyphenolic compound used in the clinic and has been shown as an antioxidant and anti-inflammatory. Therefore, the objective was to verify neuroprotective and modulating effects of RSV on N2-A cells, pre or post inserted into an oxidative stress environment. For this, two treatment conditions were established: pre-stimulus and post-stimulus. The analysis of AMPK and SIRT1 cell signaling pathways was performed through the chemiluminescence assay using the dorsomorphin and EX527 inhibitors, respectively. The inflammatory profile was also evaluated in these neural cells, through the levels of IL-6, TNF, and IL-10. We observed that RSV in N2-A cells has anti-inflammatory effect and antioxidant property and it mechanism is dependent on the SIRT1 signaling pathway. RSV effects occurs most markedly when cells have been pre-stimulated before inducing an oxidative stress environment. These results are important for conducting more adequate protocols in the medical and nutritional clinic.
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13
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Potential Role of Polyphenolic Flavonoids as Senotherapeutic Agents in Degenerative Diseases and Geroprotection. Pharmaceut Med 2022; 36:331-352. [PMID: 36100824 PMCID: PMC9470070 DOI: 10.1007/s40290-022-00444-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2022] [Indexed: 10/29/2022]
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14
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Evidence of Sex Differences in Cellular Senescence. Neurobiol Aging 2022; 120:88-104. [DOI: 10.1016/j.neurobiolaging.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 11/20/2022]
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15
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Chaturvedi S, Naseem Z, El-Khamisy SF, Wahajuddin M. Nanomedicines targeting the Inflammasome as a promising therapeutic approach for cell senescence. Semin Cancer Biol 2022; 86:46-53. [PMID: 36030027 DOI: 10.1016/j.semcancer.2022.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 01/04/2023]
Abstract
Technological advancements in the present era have enhanced drug discovery and development. Nanomedicines are valuable pharmacotherapeutic tools against several diseases and disorders including aging related disorders. The mechanistic association between nanomedicines and molecular modulation have been investigated by many researchers. Notwithstanding the availability of tremendous amount of data, role of nanomedicines in aging related disorders intending inflammasome transfiguration have not been thoroughly reviewed till now. In the present review, we discuss the application of nanomedicines in aging related disorders. Further, we highlight the recent updates on modulated upstream and downstream signalling molecules of inflammasome cascade due to nanomedicines. The review will benefit researchers targeting nanomedicines as a therapeutic approach towards treatment age related disorders through inflammasome inflection.
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Affiliation(s)
- Swati Chaturvedi
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Richmond Road, Bradford BD7 1DP, United Kingdom
| | - Zaiba Naseem
- Department of Pharmacy, Integral University, Dasauli, Kursi Road, Lucknow 226026, India
| | - Sherif F El-Khamisy
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Richmond Road, Bradford BD7 1DP, United Kingdom; Healthy Lifespan Institute, School of Biosciences, University of Sheffield, Sheffield S10 2TN, United Kingdom
| | - Muhammad Wahajuddin
- Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Richmond Road, Bradford BD7 1DP, United Kingdom.
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16
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Xue WJ, He CF, Zhou RY, Xu XD, Xiang LX, Wang JT, Wang XR, Zhou HG, Guo JC. High glucose and palmitic acid induces neuronal senescence by NRSF/REST elevation and the subsequent mTOR-related autophagy suppression. Mol Brain 2022; 15:61. [PMID: 35850767 PMCID: PMC9290252 DOI: 10.1186/s13041-022-00947-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 07/04/2022] [Indexed: 11/10/2022] Open
Abstract
Cell senescence is a basic aging mechanism. Previous studies have found that the cellular senescence in adipose tissue and other tissues, such as the pancreas, muscle and liver, is associated with the pathogenesis and progression of type 2 diabetes; however, strong evidence of whether diabetes directly causes neuronal senescence in the brain is still lacking. In this study, we constructed a high glucose and palmitic acid (HGP) environment on PC12 neuronal cells and primary mouse cortical neurons to simulate diabetes. Our results showed that after HGP exposure, neurons exhibited obvious senescence-like phenotypes, including increased NRSF/REST level, mTOR activation and cell autophagy suppression. Downregulation of NRSF/REST could remarkably alleviate p16, p21 and γH2A.X upregulations induced by HGP treatment, and enhance mTOR-autophagy of neurons. Our results suggested that the diabetic condition could directly induce neuronal senescence, which is mediated by the upregulation of NRSF/REST and subsequent reduction of mTOR-autophagy.
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Affiliation(s)
- Wen-Jiao Xue
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Cheng-Feng He
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Ren-Yuan Zhou
- Department of Urology, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Xiao-Die Xu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Lv-Xuan Xiang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Jian-Tao Wang
- Department of Geriatric Neurology of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China
| | - Xin-Ru Wang
- Department of Geriatric Neurology of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China
| | - Hou-Guang Zhou
- Department of Geriatric Neurology of Huashan Hospital, National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China.
| | - Jing-Chun Guo
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China.
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17
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LARS2 Regulates Apoptosis via ROS-Mediated Mitochondrial Dysfunction and Endoplasmic Reticulum Stress in Ovarian Granulosa Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5501346. [PMID: 35585880 PMCID: PMC9110257 DOI: 10.1155/2022/5501346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/23/2022] [Indexed: 02/06/2023]
Abstract
Several studies have indicated that mutations of LARS2 are associated with premature ovarian insufficiency (POI). However, the pathogenic mechanism of LARS2 in POI has not been reported yet. In the present study, the expression levels of LARS2 and E2F1 in granulosa cells (GCs) of POI patients were examined. CCK-8 and Edu assay were performed to determine the effect of LARS2 on cell proliferation. Apoptosis rate, mitochondrial membrane potential, reactive oxygen species (ROS), and cytoplasm Ca2+ levels were analyzed by flow cytometry. Western blot was conducted to evaluate the expression level of genes affected by LARS2. Transmission electron microscopy (TEM) was used to observe mitochondrial structure in GCs. Chromatin immunoprecipitation (ChIP) was used to evaluate the regulatory effect of E2F1 on Mfn-2 expression. Our results showed that LARS2 expression was downregulated in GCs of POI patients. Silencing of LARS2 inhibited cell proliferation and promoted the apoptosis of GCs. Meanwhile, LARS2 knockdown could induce mitochondrial dysfunction and accumulation of ROS levels. Moreover, ROS was found to be involved in the antiproliferation, proapoptotic, and endoplasmic reticulum (ER) stress effects of LARS2 knockdown. Furthermore, we also found that the expression level of E2F1 was positively correlated with LARS2. In addition, E2F1 could bind at the -61/-46 region of Mfn-2 promoter and regulated MFN-2 transcription. These findings demonstrated that LARS2 could promote the expression of E2F1. E2F1 mediated the effect of LARS2 on Mfn-2 expression via targeting the promoter region of Mfn-2, in which subsequently regulated cell proliferation and apoptosis, which resulted in the etiology of POI. This study will provide useful information for further investigations on the LARS2 in the occurrence of POI.
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18
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Martino Adami PV, Orellana A, García P, Kleineidam L, Alarcón-Martín E, Montrreal L, Aguilera N, Espinosa A, Abdelnour C, Rosende-Roca M, Tartari JP, Vargas L, Mauleón A, Esteban-De Antonio E, López-Cuevas R, Dalmasso MC, Martin RC, Parveen K, Andrade Fuentes VM, Amin N, Ahmad S, Ikram MA, Lewczuk P, Kornhuber J, Peters O, Frölich L, Rüther E, Wiltfang J, Tarraga L, Boada M, Maier W, de Rojas I, Cano A, Sanabria A, Alegret M, Hernández I, Marquié M, Valero S, van Duijn CM, Wagner M, Jessen F, Schneider A, Sáez Goñi ME, Pérez AG, Ruiz A, Ramírez A. Matrix metalloproteinase 10 is linked to the risk of progression to dementia of the Alzheimer's type. Brain 2022; 145:2507-2517. [PMID: 35088840 DOI: 10.1093/brain/awac024] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 12/10/2021] [Accepted: 12/16/2021] [Indexed: 11/12/2022] Open
Abstract
Alzheimer's disease has a long asymptomatic phase that offers a substantial time window for intervention. Utilizing this window of opportunity will require early diagnostic and prognostic biomarkers to detect Alzheimer's disease pathology at pre-dementia stages, thus allowing identification of patients who will most probably progress to dementia of the Alzheimer's type and benefit from specific disease-modifying therapies. Consequently, we searched for CSF proteins associated with disease progression along with the clinical disease staging. We measured the levels of 184 proteins in CSF samples from 556 subjective cognitive decline and mild cognitive impairment patients from three independent memory clinic longitudinal studies (Spanish ACE, n = 410; German DCN, n = 93; German Mannheim, n = 53). We evaluated the association between protein levels and clinical stage, and the effect of protein levels on the progression from mild cognitive impairment to dementia of the Alzheimer's type. Mild cognitive impairment subjects with increased CSF level of matrix metalloproteinase 10 showed a higher probability of progressing to dementia of the Alzheimer's type and a faster cognitive decline. CSF matrix metalloproteinase 10 increased the prediction accuracy of CSF Aβ42, P-tau181, and T-tau for conversion to dementia of the Alzheimer's type. Including matrix metalloproteinase 10 to the [A/T/(N)] scheme improved considerably the prognostic value in mild cognitive impairment patients with abnormal Aβ42, but normal P-tau181 and T-tau, and in mild cognitive impairment patients with abnormal Aβ42, P-tau181, and T-tau. Matrix metalloproteinase 10 was correlated with age in subjects with normal Aβ42, P-tau181, and T-tau levels. Our findings support the use of CSF matrix metalloproteinase 10 as a prognostic marker for dementia of the Alzheimer's type and its inclusion to the [A/T/(N)] scheme to incorporate pathologic aspects beyond amyloid and tau. CSF level of matrix metalloproteinase 10 may reflect ageing and neuroinflammation.
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Affiliation(s)
- Pamela V Martino Adami
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Adelina Orellana
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Pablo García
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Luca Kleineidam
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, 53127 Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
| | - Emilio Alarcón-Martín
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Laura Montrreal
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Nuria Aguilera
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Ana Espinosa
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Carla Abdelnour
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Maitee Rosende-Roca
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Juan Pablo Tartari
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Liliana Vargas
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Ana Mauleón
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Ester Esteban-De Antonio
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Rogelio López-Cuevas
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Maria Carolina Dalmasso
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Rafael Campos Martin
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Kayenat Parveen
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Victor M Andrade Fuentes
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Najaf Amin
- Nuffield Department of Population Health, University of Oxford, University of Oxford Richard Doll Building, Old Road Campus, Headington, Oxford OX3 7LF, UK
| | - Shahzad Ahmad
- Department of Epidemiology, Erasmus MC, 3015 GD Rotterdam, The Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus MC, 3015 GD Rotterdam, The Netherlands
| | - Piotr Lewczuk
- Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen, and Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany.,Department of Neurodegeneration Diagnostics, Medical University of Białystok, 15-269 Białystok, Poland
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen, and Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Oliver Peters
- Department of Biochemical Diagnostics, University Hospital of Białystok, 15-269 Białystok, Poland.,Department of Psychiatry, Charité University Medicine, Campus Benjamin Franklin, 12200 Berlin, Germany
| | - Lutz Frölich
- Department of Geriatric Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, 68159 Mannheim, Germany
| | - Eckart Rüther
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen. von-Siebold-Str. 5, 37075 Göttingen, Germany
| | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen. von-Siebold-Str. 5, 37075 Göttingen, Germany.,German Center for Neurodegenerative Diseases (DZNE), 37075 Göttingen, Germany.,iBiMED, Medical Sciences Department, University of Aveiro. Aradas 3810-193, Aveiro, Portugal
| | - Lluis Tarraga
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Merce Boada
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Wolfgang Maier
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, 53127 Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
| | - Itziar de Rojas
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Amanda Cano
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Angela Sanabria
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain
| | - Montserrat Alegret
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Isabel Hernández
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Marta Marquié
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Sergi Valero
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | | | - Michael Wagner
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, 53127 Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
| | - Frank Jessen
- German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany.,Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Anja Schneider
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, 53127 Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
| | | | | | - Agustín Ruiz
- Research Center and Memory Clinic, Ace Alzheimer Center Barcelona, International University of Catalonia, 8029 Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Alfredo Ramírez
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany.,Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Medical Faculty, 53127 Bonn, Germany.,German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany.,Department of Psychiatry and Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, 78229 San Antonio, Texas, USA.,Cluster of Excellence Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne. Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
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19
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Rubio-Tomás T, Rueda-Robles A, Plaza-Díaz J, Álvarez-Mercado AI. Nutrition and cellular senescence in obesity-related disorders. J Nutr Biochem 2022; 99:108861. [PMID: 34517097 DOI: 10.1016/j.jnutbio.2021.108861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 05/29/2021] [Accepted: 08/10/2021] [Indexed: 02/06/2023]
Abstract
Adequate nutrition is vital for immune homeostasis. However, the incidence of obesity is increasing worldwide due to the adoption of the Western diet and a sedentary lifestyle. Obesity is associated with chronic inflammation which alters the function of adipose tissue, liver, pancreas, and the nervous system. Inflammation is related to cellular senescence, distinguished by irreversible cell cycle arrest. Senescent cells secrete the senescence-associated secretory phenotype (SASP) which contains pro-inflammatory factors. Targeting processes in senescence might have a salutary approach to obesity. The present review highlights the impact of an unhealthy diet on tissues affected by obesity, and the mechanisms that promote the consequent inflammation and senescence.
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Affiliation(s)
- Teresa Rubio-Tomás
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; School of Medicine, University of Crete, Herakleion, Crete, Greece
| | - Ascensión Rueda-Robles
- Institute of Nutrition and Food Technology "José Mataix", Center of Biomedical Research, University of Granada, Armilla, Granada, Spain
| | - Julio Plaza-Díaz
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON Canada; Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Complejo Hospitalario Universitario de Granada, Granada Spain.
| | - Ana I Álvarez-Mercado
- Institute of Nutrition and Food Technology "José Mataix", Center of Biomedical Research, University of Granada, Armilla, Granada, Spain; Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Complejo Hospitalario Universitario de Granada, Granada Spain.
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20
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Raffaele M, Vinciguerra M. The costs and benefits of senotherapeutics for human health. THE LANCET. HEALTHY LONGEVITY 2022; 3:e67-e77. [PMID: 36098323 DOI: 10.1016/s2666-7568(21)00300-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/09/2021] [Accepted: 11/21/2021] [Indexed: 12/24/2022] Open
Abstract
Cellular senescence is a major contributor to age-related diseases in humans; however, it also has a beneficial role in physiological and pathological processes, including wound healing, host immunity, and tumour suppression. Reducing the burden of cell senescence in animal models of cardiometabolic disorders, inflammatory conditions, neurodegenerative diseases, and cancer using pharmaceutical approaches that selectively target senescent cells (ie, senolytics) or that suppress senescence-associated secretory phenotype (ie, senomorphics) holds great promise for the management of chronic age-associated conditions. Although studies have provided evidence that senolytics or senomorphics are effective at decreasing the number of senescent cells in humans, the short-term and long-term side-effects of these therapies are largely unknown. In this Review, we systematically discuss the senolytics and senomorphics that have been investigated in clinical trials or have been used off-label, presenting their various adverse effects. Despite the potential of senotherapeutics to transform anti-ageing medicine, a cautionary approach regarding unwanted dose-dependent side-effects should be adopted.
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Affiliation(s)
- Marco Raffaele
- International Clinical Research Center, St Anne's University Hospital, Brno, Czech Republic
| | - Manlio Vinciguerra
- International Clinical Research Center, St Anne's University Hospital, Brno, Czech Republic; Division of Medicine, University College London, London, UK; Research Institute of the Medical University of Varna, Varna, Bulgaria.
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21
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Lee S, Wang EY, Steinberg AB, Walton CC, Chinta SJ, Andersen JK. A guide to senolytic intervention in neurodegenerative disease. Mech Ageing Dev 2021; 200:111585. [PMID: 34627838 PMCID: PMC8627445 DOI: 10.1016/j.mad.2021.111585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/20/2021] [Accepted: 10/06/2021] [Indexed: 12/18/2022]
Abstract
Cellular senescence is a potential tumor-suppressive mechanism that generally results in an irreversible cell cycle arrest. Senescent cells accumulate with age and actively secrete soluble factors, collectively termed the 'senescence-associated secretory phenotype' (SASP), which has both beneficial and detrimental effects. Although the contribution of senescent cells to age-related pathologies has been well-established outside the brain, emerging evidence indicates that brain cells also undergo cellular senescence and contribute to neuronal loss in the context of age-related neurodegenerative diseases. Contribution of senescent cells in the pathogenesis of neurological disorders has led to the possibility of eliminating senescence cells via pharmacological compounds called senolytics. Recently several senolytics have been demonstrated to elicit improved cognitive performance and healthspan in mouse models of neurodegeneration. However, their translation for use in the clinic still holds several potential challenges. This review summarizes available senolytics, their purported mode of action, and possible off-target effects. We also discuss possible alternative strategies that may help minimize potential side-effects associated with the senolytics approach.
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Affiliation(s)
- Suckwon Lee
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
| | - Ellen Y Wang
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
| | - Alexandra B Steinberg
- University of Wisconsin Department of Biochemistry, 433 Babcock Drive., Madison, WI, 53706, USA
| | - Chaska C Walton
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA.
| | - Shankar J Chinta
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA; Touro University California, College of Pharmacy, 1310 Club Dr., Vallejo, CA, 94592, USA.
| | - Julie K Andersen
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA.
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22
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Palmer A, Epton S, Crawley E, Straface M, Gammon L, Edgar MM, Xu Y, Elahi S, Chin-Aleong J, Martin JE, Bishop CL, Knowles CH, Sanger GJ. Expression of p16 Within Myenteric Neurons of the Aged Colon: A Potential Marker of Declining Function. Front Neurosci 2021; 15:747067. [PMID: 34690683 PMCID: PMC8529329 DOI: 10.3389/fnins.2021.747067] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/14/2021] [Indexed: 01/31/2023] Open
Abstract
Human colonic neuromuscular functions decline among the elderly. The aim was to explore the involvement of senescence. A preliminary PCR study looked for age-dependent differences in expression of CDKN1A (encoding the senescence-related p21 protein) and CDKN2A (encoding p16 and p14) in human ascending and descending colon (without mucosa) from 39 (approximately 50: 50 male: female) adult (aged 27–60 years) and elderly donors (70–89 years). Other genes from different aging pathways (e.g., inflammation, oxidative stress, autophagy) and cell-types (e.g., neurons, neuron axonal transport) were also examined. Unlike CDKN1A, CDKN2A (using primers for p16 and p14 but not when using p14-specific primers) was upregulated in both regions of colon. Compared with the number of genes appearing to upregulate in association with temporal age, more genes positively associated with increased CDKN2A expression (respectively, 16 and five of 44 genes studied for ascending and descending colon). Confirmation of increased expression of CDKN2A was sought by immunostaining for p16 in the myenteric plexus of colon from 52 patients, using a semi-automated software protocol. The results showed increased staining not within the glial cells (S100 stained), but in the cytoplasm of myenteric nerve cell bodies (MAP2 stained, with identified nucleus) of ascending, but not descending colon of the elderly, and not in the cell nucleus of either region or age group (5,710 neurons analyzed: n = 12–14 for each group). It was concluded that increased p16 staining within the cytoplasm of myenteric nerve cell bodies of elderly ascending (but not descending) colon, suggests a region-dependent, post-mitotic cellular senescence-like activity, perhaps involved with aging of enteric neurons within the colon.
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Affiliation(s)
- Alexandra Palmer
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Sarah Epton
- Barts Health NHS Trust, Department of Colorectal Surgery and Pathology, The Royal London Hospital, London, United Kingdom
| | - Ellie Crawley
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Marilisa Straface
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Luke Gammon
- Center for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Meghan M Edgar
- Gastroenterology Drug Discovery Unit, Takeda Pharmaceuticals, San Diego, CA, United States
| | - Yichen Xu
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Shezan Elahi
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Joanne Chin-Aleong
- Barts Health NHS Trust, Department of Colorectal Surgery and Pathology, The Royal London Hospital, London, United Kingdom
| | - Joanne E Martin
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Barts Health NHS Trust, Department of Colorectal Surgery and Pathology, The Royal London Hospital, London, United Kingdom
| | - Cleo L Bishop
- Center for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Center for Inflammation and Therapeutic Innovation Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Charles H Knowles
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Barts Health NHS Trust, Department of Colorectal Surgery and Pathology, The Royal London Hospital, London, United Kingdom
| | - Gareth J Sanger
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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23
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Chae JB, Jang H, Son C, Park CW, Choi H, Jin S, Lee HY, Lee H, Ryu JH, Kim N, Kim C, Chung H. Targeting senescent retinal pigment epithelial cells facilitates retinal regeneration in mouse models of age-related macular degeneration. GeroScience 2021; 43:2809-2833. [PMID: 34601706 DOI: 10.1007/s11357-021-00457-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 09/11/2021] [Indexed: 01/27/2023] Open
Abstract
Although age-related macular degeneration (AMD) is a multifactorial disorder with angiogenic, immune, and inflammatory components, the most common clinical treatment strategies are antiangiogenic therapies. However, these strategies are only applicable to neovascular AMD, which accounts for less than 20% of all AMD cases, and there are no FDA-approved drugs for the treatment of dry AMD, which accounts for ~ 80% of AMD cases. Here, we report that the elimination of senescent cells is a potential novel therapeutic approach for the treatment of all types of AMD. We identified senescent retinal pigment epithelium (RPE) cells in animal models of AMD and determined their contributions to retinal degeneration. We further confirmed that the clearance of senescent RPE cells with the MDM2-p53 inhibitor Nutlin-3a ameliorated retinal degeneration. These findings provide new insights into the use of senescent cells as a therapeutic target for the treatment of AMD.
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Affiliation(s)
- Jae-Byoung Chae
- Department of Ophthalmology, Konkuk University School of Medicine, Seoul, South Korea
| | - Hyoik Jang
- Department of Ophthalmology, Konkuk University School of Medicine, Seoul, South Korea
| | - Chanok Son
- Department of Ophthalmology, Konkuk University School of Medicine, Seoul, South Korea
| | - Chul-Woo Park
- Department of Ophthalmology, Konkuk University School of Medicine, Seoul, South Korea
| | - Huyeon Choi
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Seongeon Jin
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Ho-Yeon Lee
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea.,Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, South Korea
| | - Hyungwoo Lee
- Department of Ophthalmology, Konkuk University Medical Center, Seoul, South Korea
| | - Ja-Hyoung Ryu
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Namshin Kim
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea.,Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, South Korea
| | - Chaekyu Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, South Korea.
| | - Hyewon Chung
- Department of Ophthalmology, Konkuk University School of Medicine, Seoul, South Korea. .,Department of Ophthalmology, Konkuk University Medical Center, Seoul, South Korea.
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24
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Vanhunsel S, Bergmans S, Beckers A, Etienne I, Van Houcke J, Seuntjens E, Arckens L, De Groef L, Moons L. The killifish visual system as an in vivo model to study brain aging and rejuvenation. NPJ Aging Mech Dis 2021; 7:22. [PMID: 34404797 PMCID: PMC8371010 DOI: 10.1038/s41514-021-00077-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023] Open
Abstract
Worldwide, people are getting older, and this prolonged lifespan unfortunately also results in an increased prevalence of age-related neurodegenerative diseases, contributing to a diminished life quality of elderly. Age-associated neuropathies typically include diseases leading to dementia (Alzheimer's and Parkinson's disease), as well as eye diseases such as glaucoma and age-related macular degeneration. Despite many research attempts aiming to unravel aging processes and their involvement in neurodegeneration and functional decline, achieving healthy brain aging remains a challenge. The African turquoise killifish (Nothobranchius furzeri) is the shortest-lived reported vertebrate that can be bred in captivity and displays many of the aging hallmarks that have been described for human aging, which makes it a very promising biogerontology model. As vision decline is an important hallmark of aging as well as a manifestation of many neurodegenerative diseases, we performed a comprehensive characterization of this fish's aging visual system. Our work reveals several aging hallmarks in the killifish retina and brain that eventually result in a diminished visual performance. Moreover, we found evidence for the occurrence of neurodegenerative events in the old killifish retina. Altogether, we introduce the visual system of the fast-aging killifish as a valuable model to understand the cellular and molecular mechanisms underlying aging in the vertebrate central nervous system. These findings put forward the killifish for target validation as well as drug discovery for rejuvenating or neuroprotective therapies ensuring healthy aging.
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Affiliation(s)
- Sophie Vanhunsel
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - Steven Bergmans
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - An Beckers
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | | | - Jolien Van Houcke
- Neuroplasticity and Neuroproteomics Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - Eve Seuntjens
- Developmental Neurobiology Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Leuven Brain Institute, Leuven, Belgium
| | - Lut Arckens
- Neuroplasticity and Neuroproteomics Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Leuven Brain Institute, Leuven, Belgium
| | - Lies De Groef
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
- Leuven Brain Institute, Leuven, Belgium
| | - Lieve Moons
- Neural Circuit Development and Regeneration Research Group, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium.
- Leuven Brain Institute, Leuven, Belgium.
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25
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Reelin Alleviates Mesenchymal Stem Cell Senescence and Reduces Pathological α-Synuclein Expression in an In Vitro Model of Parkinson's Disease. Genes (Basel) 2021; 12:genes12071066. [PMID: 34356083 PMCID: PMC8308051 DOI: 10.3390/genes12071066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/06/2021] [Accepted: 07/09/2021] [Indexed: 02/08/2023] Open
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative diseases. The mechanisms underlying PD remain to be fully elucidated, and research into treatments for this condition is ongoing. Recent advances in genetic research have shed light on the mechanisms underlying PD. In this study, we used PD and control mesenchymal stem cells (MSCs) obtained from adipose tissues to confirm the differences between groups at the cellular and molecular levels. The results revealed that in PD MSCs, cell viability was clearly lower, and the rate of cell senescence was higher compared to the controls. Next, to compare the gene expression in PD and control cells, transcriptome analysis was performed. Genes in pathways, including extracellular matrix (ECM) receptor interaction, P53 signaling, and focal adhesion, were down-regulated in PD. Among genes related to ECM receptor interaction, RELN gene expression was markedly decreased in PD cells; however, after being treated with recombinant Reelin protein, a significant increase in cell viability and a decrease in α-Synuclein aggregation and cell senescence were observed. In conclusion, Reelin affects PD by positively influencing the cell characteristics. Our findings will facilitate research into new treatments for PD.
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26
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Verma DK, Seo BA, Ghosh A, Ma SX, Hernandez-Quijada K, Andersen JK, Ko HS, Kim YH. Alpha-Synuclein Preformed Fibrils Induce Cellular Senescence in Parkinson's Disease Models. Cells 2021; 10:1694. [PMID: 34359864 PMCID: PMC8304385 DOI: 10.3390/cells10071694] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 12/24/2022] Open
Abstract
Emerging evidence indicates that cellular senescence could be a critical inducing factor for aging-associated neurodegenerative disorders. However, the involvement of cellular senescence remains unclear in Parkinson's disease (PD). To determine this, we assessed the effects of α-synuclein preformed fibrils (α-syn PFF) or 1-methyl-4-phenylpyridinium (MPP+) on changes in cellular senescence markers, employing α-syn PFF treated-dopaminergic N27 cells, primary cortical neurons, astrocytes and microglia and α-syn PFF-injected mouse brain tissues, as well as human PD patient brains. Our results demonstrate that α-syn PFF-induced toxicity reduces the levels of Lamin B1 and HMGB1, both established markers of cellular senescence, in correlation with an increase in the levels of p21, a cell cycle-arrester and senescence marker, in both reactive astrocytes and microglia in mouse brains. Using Western blot and immunohistochemistry, we found these cellular senescence markers in reactive astrocytes as indicated by enlarged cell bodies within GFAP-positive cells and Iba1-positive activated microglia in α-syn PFF injected mouse brains. These results indicate that PFF-induced pathology could lead to astrocyte and/or microglia senescence in PD brains, which may contribute to neuropathology in this model. Targeting senescent cells using senolytics could therefore constitute a viable therapeutic option for the treatment of PD.
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Affiliation(s)
- Dinesh Kumar Verma
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE 19901, USA; (D.K.V.); (A.G.); (K.H.-Q.)
| | - Bo Am Seo
- Department of Neurology, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA; (B.A.S.); (S.-X.M.)
- Neuroregeneration & Stem Cell Program, Institute for Cell Engineering, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA
| | - Anurupa Ghosh
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE 19901, USA; (D.K.V.); (A.G.); (K.H.-Q.)
| | - Shi-Xun Ma
- Department of Neurology, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA; (B.A.S.); (S.-X.M.)
- Neuroregeneration & Stem Cell Program, Institute for Cell Engineering, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA
| | - Karina Hernandez-Quijada
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE 19901, USA; (D.K.V.); (A.G.); (K.H.-Q.)
| | | | - Han Seok Ko
- Department of Neurology, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA; (B.A.S.); (S.-X.M.)
- Neuroregeneration & Stem Cell Program, Institute for Cell Engineering, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA
| | - Yong-Hwan Kim
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE 19901, USA; (D.K.V.); (A.G.); (K.H.-Q.)
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27
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Senotherapeutics: Targeting senescent cells for the main age-related diseases. Mech Ageing Dev 2021; 197:111526. [PMID: 34166689 DOI: 10.1016/j.mad.2021.111526] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/01/2021] [Accepted: 06/20/2021] [Indexed: 12/14/2022]
Abstract
The review aims to summarize and discuss the current knowledge on targeting senescent cells to reduce the risk of age-related diseases in animal models and human studies. The role of cellular senescence in aging and the major age-related diseases -including Alzheimer's disease, atherosclerosis, and type 2 diabetes- as well as the use of senotherapeutic strategies in both experimental and preclinical studies, will be described. A large number of molecules, including synthetic agents and natural compounds, have been proposed for anti-senescence activities. Research on senotherapeutics, which includes senolytic and senomorphic, has a growing interest, and their safety and reliability as anti-aging drugs have been tested in clinical trials. Initial findings suggest that the senotherapeutic approach may be translatable to humans. Due to the lack of evidence, caution must be used against senolytic agents due to their potential side-effects. In this context, natural senolytic compounds should have the advantage of low toxicity and potentially more useful in humans, although the mechanisms of action need to be defined.
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28
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Carreno G, Guiho R, Martinez‐Barbera JP. Cell senescence in neuropathology: A focus on neurodegeneration and tumours. Neuropathol Appl Neurobiol 2021; 47:359-378. [PMID: 33378554 PMCID: PMC8603933 DOI: 10.1111/nan.12689] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/04/2020] [Accepted: 12/13/2020] [Indexed: 01/10/2023]
Abstract
The study of cell senescence is a burgeoning field. Senescent cells can modify the cellular microenvironment through the secretion of a plethora of biologically active products referred to as the senescence-associated secretory phenotype (SASP). The consequences of these paracrine signals can be either beneficial for tissue homeostasis, if senescent cells are properly cleared and SASP activation is transient, or result in organ dysfunction, when senescent cells accumulate within the tissues and SASP activation is persistent. Several studies have provided evidence for the role of senescence and SASP in promoting age-related diseases or driving organismal ageing. The hype about senescence has been further amplified by the fact that a group of drugs, named senolytics, have been used to successfully ameliorate the burden of age-related diseases and increase health and life span in mice. Ablation of senescent cells in the brain prevents disease progression and improves cognition in murine models of neurodegenerative conditions. The role of senescence in cancer has been more thoroughly investigated, and it is now accepted that senescence is a double-edged sword that can paradoxically prevent or promote tumourigenesis in a context-dependent manner. In addition, senescence induction followed by senolytic treatment is starting to emerge as a novel therapeutic avenue that could improve current anti-cancer therapies and reduce tumour recurrence. In this review, we discuss recent findings supporting the role of cell senescence in the pathogenesis of neurodegenerative diseases and in brain tumours. A better understanding of senescence is likely to result in the development of novel and efficacious anti-senescence therapies against these brain pathologies.
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Affiliation(s)
- Gabriela Carreno
- Developmental Biology and Cancer ProgrammeBirth Defects Research CentreInstitute of Child Health Great Ormond Street HospitalUniversity College London30 Guilford StreetLondonWC1N 1EHUK
| | - Romain Guiho
- Developmental Biology and Cancer ProgrammeBirth Defects Research CentreInstitute of Child Health Great Ormond Street HospitalUniversity College London30 Guilford StreetLondonWC1N 1EHUK
| | - Juan Pedro Martinez‐Barbera
- Developmental Biology and Cancer ProgrammeBirth Defects Research CentreInstitute of Child Health Great Ormond Street HospitalUniversity College London30 Guilford StreetLondonWC1N 1EHUK
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29
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Sikora E, Bielak-Zmijewska A, Dudkowska M, Krzystyniak A, Mosieniak G, Wesierska M, Wlodarczyk J. Cellular Senescence in Brain Aging. Front Aging Neurosci 2021; 13:646924. [PMID: 33732142 PMCID: PMC7959760 DOI: 10.3389/fnagi.2021.646924] [Citation(s) in RCA: 128] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/02/2021] [Indexed: 12/25/2022] Open
Abstract
Aging of the brain can manifest itself as a memory and cognitive decline, which has been shown to frequently coincide with changes in the structural plasticity of dendritic spines. Decreased number and maturity of spines in aged animals and humans, together with changes in synaptic transmission, may reflect aberrant neuronal plasticity directly associated with impaired brain functions. In extreme, a neurodegenerative disease, which completely devastates the basic functions of the brain, may develop. While cellular senescence in peripheral tissues has recently been linked to aging and a number of aging-related disorders, its involvement in brain aging is just beginning to be explored. However, accumulated evidence suggests that cell senescence may play a role in the aging of the brain, as it has been documented in other organs. Senescent cells stop dividing and shift their activity to strengthen the secretory function, which leads to the acquisition of the so called senescence-associated secretory phenotype (SASP). Senescent cells have also other characteristics, such as altered morphology and proteostasis, decreased propensity to undergo apoptosis, autophagy impairment, accumulation of lipid droplets, increased activity of senescence-associated-β-galactosidase (SA-β-gal), and epigenetic alterations, including DNA methylation, chromatin remodeling, and histone post-translational modifications that, in consequence, result in altered gene expression. Proliferation-competent glial cells can undergo senescence both in vitro and in vivo, and they likely participate in neuroinflammation, which is characteristic for the aging brain. However, apart from proliferation-competent glial cells, the brain consists of post-mitotic neurons. Interestingly, it has emerged recently, that non-proliferating neuronal cells present in the brain or cultivated in vitro can also have some hallmarks, including SASP, typical for senescent cells that ceased to divide. It has been documented that so called senolytics, which by definition, eliminate senescent cells, can improve cognitive ability in mice models. In this review, we ask questions about the role of senescent brain cells in brain plasticity and cognitive functions impairments and how senolytics can improve them. We will discuss whether neuronal plasticity, defined as morphological and functional changes at the level of neurons and dendritic spines, can be the hallmark of neuronal senescence susceptible to the effects of senolytics.
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Affiliation(s)
- Ewa Sikora
- Laboratory of Molecular Bases of Aging, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
| | - Anna Bielak-Zmijewska
- Laboratory of Molecular Bases of Aging, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
| | - Magdalena Dudkowska
- Laboratory of Molecular Bases of Aging, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
| | - Adam Krzystyniak
- Laboratory of Molecular Bases of Aging, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
| | - Grazyna Mosieniak
- Laboratory of Molecular Bases of Aging, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
| | - Malgorzata Wesierska
- Laboratory of Neuropsychology, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
| | - Jakub Wlodarczyk
- Laboratory of Cell Biophysics, Nencki Institute of Experimental Biology, PAS, Warsaw, Poland
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30
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Kulkarni NP, Vaidya B, Narula AS, Sharma SS. Neuroprotective Potential of Caffeic Acid Phenethyl Ester (CAPE) in CNS Disorders: Mechanistic and Therapeutic Insights. Curr Neuropharmacol 2021; 19:1401-1415. [PMID: 34102977 PMCID: PMC8762179 DOI: 10.2174/1570159x19666210608165509] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 04/27/2021] [Accepted: 05/10/2021] [Indexed: 12/02/2022] Open
Abstract
Neurological disorders like Alzheimer's disease (AD), Parkinson's disease (PD), stroke, amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), epilepsy, traumatic brain injury (TBI), depression, and anxiety are responsible for thousands of deaths worldwide every year. With the increase in life expectancy, there has been a rise in the prevalence of these disorders. Age is one of the major risk factors for these neurological disorders, and with the aged population set to rise to 1.25 billion by 2050, there is a growing concern to look for new therapeutic molecules to treat age-related diseases. Caffeic acid phenethyl ester (CAPE) is a molecule obtained from a number of botanical sources, such as the bark of conifer trees as well as propolis which is extracted from beehives. Though CAPE remains relatively unexplored in human trials, it possesses antioxidant, anti-inflammatory, antimitogenic, and anti-cancer activities, as shown by preclinical studies. Apart from this, it also exhibits tremendous potential for the treatment of neurological disorders through the modulation of multiple molecular pathways and attenuation of behavioural deficits. In the present article, we have reviewed the therapeutic potential of CAPE and its mechanisms in the treatment of neurological disorders.
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Affiliation(s)
| | | | | | - Shyam Sunder Sharma
- Address correspondence to this author at the Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Mohali, Punjab, India; E-mail:
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31
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Zhawar VK, Kandpal RP, Athwal RS. Senescence of Normal Human Fibroblasts Relates to the Expression of Ionotropic Glutamate Receptor GluR6/Grik2. Cancer Genomics Proteomics 2020; 17:707-714. [PMID: 33099472 PMCID: PMC7675648 DOI: 10.21873/cgp.20225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM Glutamate receptor GRIK2, previously designated as GluR6, is best described in neuronal cells. However, its biological relevance in non-neuronal cells is not well understood. We have investigated the expression of this important protein in normal human fibroblasts as a function of cell proliferation. MATERIALS AND METHODS We introduced expression constructs of all five isoforms (A-E) of GRIK2 in normal human fibroblasts and investigated the cells for the presence and localization of GRIK2, as well as for cell proliferation and senescence over a period of 24 days. RESULTS The expression of GRIK2-A isoform led to immediate cessation of cell proliferation. However, the cell numbers increased by 1.5- to 9.0-fold in 24 days upon transfection with B, C, D and E isoforms, after which they entered a state of senescence. The decreased proliferation was reflected by incorporation of BrdU in only 2-8% of transfected cells even after culturing them for 16 days. CONCLUSION Our results are indicative of an association between GRIK2 and aging of fibroblasts.
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Affiliation(s)
- Vikramjit K Zhawar
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA, U.S.A
| | - Raj P Kandpal
- Department of Basic Medical Sciences, Western University of Health Sciences, Pomona, CA, U.S.A.
| | - Raghbir S Athwal
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA, U.S.A.
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Spatio-temporal correlates of gene expression and cortical morphology across lifespan and aging. Neuroimage 2020; 224:117426. [PMID: 33035668 DOI: 10.1016/j.neuroimage.2020.117426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 11/23/2022] Open
Abstract
Evidence from neuroimaging and genetic studies supports the concept that brain aging mirrors development. However, it is unclear whether mechanisms linking brain development and aging provide new insights to delay aging and potentially reverse it. This study determined biological mechanisms and phenotypic traits underpinning brain alterations across the lifespan and in aging by examining spatio-temporal correlations between gene expression and cortical volumes using datasets d with the age range from 2 to 82 years. We revealed that a large proportion of genes whose expression was associated with cortical volumes across the lifespan were in astrocytes. These genes, which showed up-regulation during development and down-regulation during aging, contributed to fundamental homeostatic functions of astrocytes. Included among these genes were those encoding components of cAMP, Ras, and retrograde endocannabinoid signaling pathways. Genes associated with cortical volumes in the same data aged above 55 years were also enriched for the sphingolipid, renin-angiotensin system (RAS), proteasome, and TGF-β signaling pathway, which is linked to senescence-associated secretory phenotypes. Neuroticism, drinking, and smoking were the common phenotypic traits in the lifespan and aging, while memory was the unique phenotype associated with aging. These findings provide biological mechanisms mirroring development and aging as well as unique to aging.
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Vanhunsel S, Beckers A, Moons L. Designing neuroreparative strategies using aged regenerating animal models. Ageing Res Rev 2020; 62:101086. [PMID: 32492480 DOI: 10.1016/j.arr.2020.101086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 04/13/2020] [Accepted: 05/08/2020] [Indexed: 12/13/2022]
Abstract
In our ever-aging world population, the risk of age-related neuropathies has been increasing, representing both a social and economic burden to society. Since the ability to regenerate in the adult mammalian central nervous system is very limited, brain trauma and neurodegeneration are often permanent. As a consequence, novel scientific challenges have emerged and many research efforts currently focus on triggering repair in the damaged or diseased brain. Nevertheless, stimulating neuroregeneration remains ambitious. Even though important discoveries have been made over the past decades, they did not translate into a therapy yet. Actually, this is not surprising; while these disorders mainly manifest in aged individuals, most of the research is being performed in young animal models. Aging of neurons and their environment, however, greatly affects the central nervous system and its capacity to repair. This review provides a detailed overview of the impact of aging on central nervous system functioning and regeneration potential, both in non-regenerating and spontaneously regenerating animal models. Additionally, we highlight the need for aging animal models with regenerative capacities in the search for neuroreparative strategies.
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Affiliation(s)
- Sophie Vanhunsel
- Laboratory of Neural Circuit Development and Regeneration, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - An Beckers
- Laboratory of Neural Circuit Development and Regeneration, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium
| | - Lieve Moons
- Laboratory of Neural Circuit Development and Regeneration, Animal Physiology and Neurobiology Section, Department of Biology, KU Leuven, Leuven, Belgium.
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Healthspan pathway maps in C. elegans and humans highlight transcription, proliferation/biosynthesis and lipids. Aging (Albany NY) 2020; 12:12534-12581. [PMID: 32634117 PMCID: PMC7377848 DOI: 10.18632/aging.103514] [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: 03/24/2020] [Accepted: 06/04/2020] [Indexed: 12/17/2022]
Abstract
The molecular basis of aging and of aging-associated diseases is being unraveled at an increasing pace. An extended healthspan, and not merely an extension of lifespan, has become the aim of medical practice. Here, we define health based on the absence of diseases and dysfunctions. Based on an extensive review of the literature, in particular for humans and C. elegans, we compile a list of features of health and of the genes associated with them. These genes may or may not be associated with survival/lifespan. In turn, survival/lifespan genes that are not known to be directly associated with health are not considered. Clusters of these genes based on molecular interaction data give rise to maps of healthspan pathways for humans and for C. elegans. Overlaying healthspan-related gene expression data onto the healthspan pathway maps, we observe the downregulation of (pro-inflammatory) Notch signaling in humans and of proliferation in C. elegans. We identify transcription, proliferation/biosynthesis and lipids as a common theme on the annotation level, and proliferation-related kinases on the gene/protein level. Our literature-based data corpus, including visualization, should be seen as a pilot investigation of the molecular underpinnings of health in two different species. Web address: http://pathways.h2020awe.eu.
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Brokaw DL, Piras IS, Mastroeni D, Weisenberger DJ, Nolz J, Delvaux E, Serrano GE, Beach TG, Huentelman MJ, Coleman PD. Cell death and survival pathways in Alzheimer's disease: an integrative hypothesis testing approach utilizing -omic data sets. Neurobiol Aging 2020; 95:15-25. [PMID: 32745806 DOI: 10.1016/j.neurobiolaging.2020.06.022] [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: 02/10/2020] [Revised: 05/28/2020] [Accepted: 06/27/2020] [Indexed: 01/01/2023]
Abstract
Whether a cell lives or dies is controlled by an array of intercepting and dynamic molecular pathways. Although there is evidence of neuronal loss in Alzheimer's disease (AD) and multiple programmed cell death (PCD) pathways have been implicated in this process, there has been no comprehensive evaluation of the dominant pathway responsible for cell death in AD. Likewise, the relative dominance of survival and PCD pathways in AD remains unclear. Here, we present the results of hypothesis-driven bioinformatic analysis of PCD and survival pathway activation in paired methylation and expression data from the middle temporal gyrus (MTG) as well as expression from laser-captured cells from the MTG and hippocampus. The results not only indicate activation of cell death pathways in AD-of which apoptosis is responsible for the largest fraction of upregulated genes-but also of cell survival pathways. These results are indicative of a complex balance between survival and death pathways in AD that future studies should work to delineate at a single cell level.
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Affiliation(s)
- Danielle L Brokaw
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA.
| | - Ignazio S Piras
- Translational Genomics Research Institute, Neurogenomics Division, Phoenix, AZ, USA
| | - Diego Mastroeni
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA
| | | | - Jennifer Nolz
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA
| | - Elaine Delvaux
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA
| | - Geidy E Serrano
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Thomas G Beach
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Matthew J Huentelman
- Translational Genomics Research Institute, Neurogenomics Division, Phoenix, AZ, USA
| | - Paul D Coleman
- ASU-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA
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Saez-Atienzar S, Masliah E. Cellular senescence and Alzheimer disease: the egg and the chicken scenario. Nat Rev Neurosci 2020; 21:433-444. [PMID: 32601397 DOI: 10.1038/s41583-020-0325-z] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2020] [Indexed: 12/21/2022]
Abstract
Globally, 50 million people live with dementia, with Alzheimer disease (AD) being responsible for two-thirds of the total cases. As ageing is the main risk factor for dementia-related neurodegeneration, changes in the timing or nature of the cellular hallmarks of normal ageing might be key to understanding the events that convert normal ageing into neurodegeneration. Cellular senescence is a candidate mechanism that might be important for this conversion. Under persistent stress, as occurs in ageing, both postmitotic cells - including neurons - and proliferative cells - such as astrocytes and microglia, among others - can engender a state of chronic cellular senescence that is characterized by the secretion of pro-inflammatory molecules that promote the functional decline of tissues and organs. Ablation of senescent cells has been postulated as a promising therapeutic venue to target the ageing phenotype and, thus, prevent or mitigate ageing-related diseases. However, owing to a lack of evidence, it is not possible to label cellular senescence as a cause or a consequence of neurodegeneration. This Review examines cellular senescence in the context of ageing and AD, and discusses which of the processes - cellular senescence or AD - might come first.
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Affiliation(s)
- Sara Saez-Atienzar
- Neuromuscular Disease Research Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Eliezer Masliah
- Molecular Neuropathology Section, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA. .,Division of Neuroscience, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA.
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Robinson KF, Narasipura SD, Wallace J, Ritz EM, Al-Harthi L. β-Catenin and TCFs/LEF signaling discordantly regulate IL-6 expression in astrocytes. Cell Commun Signal 2020; 18:93. [PMID: 32546183 PMCID: PMC7296971 DOI: 10.1186/s12964-020-00565-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 03/23/2020] [Indexed: 12/12/2022] Open
Abstract
Background The Wnt/β-catenin signaling pathway is a prolific regulator of cell-to-cell communication and gene expression. Canonical Wnt/β-catenin signaling involves partnering of β-catenin with members of the TCF/LEF family of transcription factors (TCF1, TCF3, TCF4, LEF1) to regulate gene expression. IL-6 is a key cytokine involved in inflammation and is particularly a hallmark of inflammation in the brain. Astrocytes, specialized glial cells in the brain, secrete IL-6. How astrocytes regulate IL-6 expression is not entirely clear, although in other cells NFκB and C/EBP pathways play a role. We evaluated here the interface between β-catenin, TCFs/LEF and C/EBP and NF-κB in relation to IL-6 gene regulation in astrocytes. Methods We performed molecular loss and/or gain of function studies of β-catenin, TCF/LEF, NFκB, and C/EBP to assess IL-6 regulation in human astrocytes. Specifically, siRNA mediated target gene knockdown, cDNA over expression of target gene, and pharmacological agents for regulation of target proteins were used. IL-6 levels was evaluated by real time quantitative PCR and ELISA. We also cloned the IL-6 promoter under a firefly luciferase reporter and used bioinformatics, site directed mutagenesis, and chromatin immunoprecipitation to probe the interaction between β-catenin/TCFs/LEFs and IL-6 promoter activity. Results β-catenin binds to TCF/LEF to inhibits IL-6 while TCFs/LEF induce IL-6 transcription through interaction with ATF-2/SMADs. β-catenin independent of TCFs/LEF positively regulates C/EBP and NF-κB, which in turn activate IL-6 expression. The IL-6 promoter has two putative regions for TCFs/LEF binding, a proximal site located at -91 nt and a distal site at -948 nt from the transcription start site, both required for TCF/LEF induction of IL-6 independent of β-catenin. Conclusion IL-6 regulation in human astrocytes engages a discordant interaction between β-catenin and TCF/LEF. These findings are intriguing given that no role for β-catenin nor TCFs/LEF to date is associated with IL-6 regulation and suggest that β-catenin expression in astrocytes is a critical regulator of anti-inflammatory responses and its disruption can potentially mediate persistent neuroinflammation. Video Abstract
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Affiliation(s)
- KaReisha F Robinson
- Rush University Medical Center, Department of Microbial Pathogens and Immunity, Rush University Medical College, 1735 W. Harrison Street, 614 Cohn, Chicago, IL, 60612, USA
| | - Srinivas D Narasipura
- Rush University Medical Center, Department of Microbial Pathogens and Immunity, Rush University Medical College, 1735 W. Harrison Street, 614 Cohn, Chicago, IL, 60612, USA
| | - Jennillee Wallace
- Rush University Medical Center, Department of Microbial Pathogens and Immunity, Rush University Medical College, 1735 W. Harrison Street, 614 Cohn, Chicago, IL, 60612, USA
| | - Ethan M Ritz
- Rush Biostatistics Core, Rush University Medical College, Chicago, IL, USA
| | - Lena Al-Harthi
- Rush University Medical Center, Department of Microbial Pathogens and Immunity, Rush University Medical College, 1735 W. Harrison Street, 614 Cohn, Chicago, IL, 60612, USA.
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Pellegrini C, Antonioli L, Calderone V, Colucci R, Fornai M, Blandizzi C. Microbiota-gut-brain axis in health and disease: Is NLRP3 inflammasome at the crossroads of microbiota-gut-brain communications? Prog Neurobiol 2020; 191:101806. [PMID: 32473843 DOI: 10.1016/j.pneurobio.2020.101806] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/13/2020] [Accepted: 04/16/2020] [Indexed: 12/11/2022]
Abstract
Growing evidence highlights the relevance of microbiota-gut-brain axis in the maintenance of brain homeostasis as well as in the pathophysiology of major neurological and psychiatric disorders, including Parkinson's disease (PD), Alzheimer's disease (AD), multiple sclerosis (MS), autism spectrum disorder (ASD) and major depressive disorder (MDD). In particular, changes in gut microbiota can promote enteric and peripheral neurogenic/inflammatory responses, which, in turn, could contribute to neuroinflammation and neurodegeneration in the central nervous system (CNS). Of note, the nucleotide-binding oligomerization domain leucine rich repeat and pyrin domain-containing protein 3 (NLRP3) inflammasome acts as a key player in both coordinating the host physiology and shaping the peripheral and central immune/inflammatory responses in CNS diseases. In this context, there is pioneering evidence supporting the existence of a microbiota-gut-inflammasome-brain axis, in which enteric bacteria modulate, via NLRP3 signaling, inflammatory pathways that, in turn, contribute to influence brain homeostasis. The present review provides an overview of current knowledge on the role of microbiota-gut-inflammasome-brain axis in the major CNS diseases, including PD, AD, MS, ASD and MDD. In particular, though no direct and causal correlation among altered gut microbiota, NLRP3 activation and brain pathology has been demonstrated and in-depth studies are needed in this setting, our purpose was to pave the way to a novel and pioneering perspective on the pathophysiology of CNS disorders. Our intent was also to highlight and discuss whether alterations of microbiota-gut-inflammasome-brain axis support a holistic view of the pathophysiology of CNS diseases, even though each disorder displays a different clinical picture.
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Affiliation(s)
| | - Luca Antonioli
- Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | | | - Rocchina Colucci
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Italy
| | - Matteo Fornai
- Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | - Corrado Blandizzi
- Department of Clinical and Experimental Medicine, University of Pisa, Italy
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Ding X, Liu X, Wang F, Wang F, Geng X. Role of Senescence and Neuroprotective Effects of Telomerase in Neurodegenerative Diseases. Rejuvenation Res 2020; 23:150-158. [DOI: 10.1089/rej.2018.2115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Xuelu Ding
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Medical University, Tianjin, China
| | - Xuewen Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Medical University, Tianjin, China
| | - Feng Wang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Fei Wang
- Department of Neurology, General Hospital, Tianjin Medical University, Tianjin, China
| | - Xin Geng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Medical University, Tianjin, China
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Mijit M, Caracciolo V, Melillo A, Amicarelli F, Giordano A. Role of p53 in the Regulation of Cellular Senescence. Biomolecules 2020; 10:biom10030420. [PMID: 32182711 PMCID: PMC7175209 DOI: 10.3390/biom10030420] [Citation(s) in RCA: 258] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022] Open
Abstract
The p53 transcription factor plays a critical role in cellular responses to stress. Its activation in response to DNA damage leads to cell growth arrest, allowing for DNA repair, or directs cellular senescence or apoptosis, thereby maintaining genome integrity. Senescence is a permanent cell-cycle arrest that has a crucial role in aging, and it also represents a robust physiological antitumor response, which counteracts oncogenic insults. In addition, senescent cells can also negatively impact the surrounding tissue microenvironment and the neighboring cells by secreting pro-inflammatory cytokines, ultimately triggering tissue dysfunction and/or unfavorable outcomes. This review focuses on the characteristics of senescence and on the recent advances in the contribution of p53 to cellular senescence. Moreover, we also discuss the p53-mediated regulation of several pathophysiological microenvironments that could be associated with senescence and its development.
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Affiliation(s)
- Mahmut Mijit
- Sbarro Institute for Cancer Research and Molecular Medicine, Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
- Department of Medical Biotechnologies, University of Siena, 67100 Siena, Italy
| | - Valentina Caracciolo
- Sbarro Institute for Cancer Research and Molecular Medicine, Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Antonio Melillo
- Sbarro Institute for Cancer Research and Molecular Medicine, Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Fernanda Amicarelli
- Department of Medical Biotechnologies, University of Siena, 67100 Siena, Italy
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine, Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 53100 L’Aquila, Italy
- Correspondence:
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Dou X, Tong P, Huang H, Zellmer L, He Y, Jia Q, Zhang D, Peng J, Wang C, Xu N, Liao DJ. Evidence for immortality and autonomy in animal cancer models is often not provided, which causes confusion on key issues of cancer biology. J Cancer 2020; 11:2887-2920. [PMID: 32226506 PMCID: PMC7086263 DOI: 10.7150/jca.41324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/08/2020] [Indexed: 11/08/2022] Open
Abstract
Modern research into carcinogenesis has undergone three phases. Surgeons and pathologists started the first phase roughly 250 years ago, establishing morphological traits of tumors for pathologic diagnosis, and setting immortality and autonomy as indispensable criteria for neoplasms. A century ago, medical doctors, biologists and chemists started to enhance "experimental cancer research" by establishing many animal models of chemical-induced carcinogenesis for studies of cellular mechanisms. In this second phase, the two-hit theory and stepwise carcinogenesis of "initiation-promotion" or "initiation-promotion-progression" were established, with an illustrious finding that outgrowths induced in animals depend on the inducers, and thus are not authentically neoplastic, until late stages. The last 40 years are the third incarnation, molecular biologists have gradually dominated the carcinogenesis research fraternity and have established numerous genetically-modified animal models of carcinogenesis. However, evidence has not been provided for immortality and autonomy of the lesions from most of these models. Probably, many lesions had already been collected from animals for analyses of molecular mechanisms of "cancer" before the lesions became autonomous. We herein review the monumental work of many predecessors to reinforce that evidence for immortality and autonomy is essential for confirming a neoplastic nature. We extrapolate that immortality and autonomy are established early during sporadic human carcinogenesis, unlike the late establishment in most animal models. It is imperative to resume many forerunners' work by determining the genetic bases for initiation, promotion and progression, the genetic bases for immortality and autonomy, and which animal models are, in fact, good for identifying such genetic bases.
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Affiliation(s)
- Xixi Dou
- Shandong Provincial Key Laboratory of Transmucosal and Transdermal Drug Delivery, Shandong Freda Pharmaceutical Group Co., Ltd., Jinan 250101, Shandong Province, P.R. China
| | - Pingzhen Tong
- Department of Pathology, The Second Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, Guizhou Province, P.R. China
| | - Hai Huang
- Center for Clinical Laboratories, The Affiliated Hospital of Guizhou Medical University, Guiyang 550004, Guizhou Province, P.R. China
| | - Lucas Zellmer
- Masonic Cancer Center, University of Minnesota, 435 E. River Road, Minneapolis, MN 55455, USA
| | - Yan He
- Key Lab of Endemic and Ethnic Diseases of The Ministry of Education of China in Guizhou Medical University, Guiyang, Guizhou Province 550004, P. R. China
| | - Qingwen Jia
- Shandong Provincial Key Laboratory of Transmucosal and Transdermal Drug Delivery, Shandong Freda Pharmaceutical Group Co., Ltd., Jinan 250101, Shandong Province, P.R. China
| | - Daizhou Zhang
- Shandong Provincial Key Laboratory of Transmucosal and Transdermal Drug Delivery, Shandong Freda Pharmaceutical Group Co., Ltd., Jinan 250101, Shandong Province, P.R. China
| | - Jiang Peng
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, P.R. China
| | - Chenguang Wang
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong Province, P.R. China
| | - Ningzhi Xu
- Tianjin LIPOGEN Gene Technology Ltd., #238 Baidi Road, Nankai District, Tianjin 300192, P.R. China
| | - Dezhong Joshua Liao
- Department of Pathology, The Second Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, Guizhou Province, P.R. China
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Kim SB, Heo JI, Kim H, Kim KS. Acetylation of PGC1α by Histone Deacetylase 1 Downregulation Is Implicated in Radiation-Induced Senescence of Brain Endothelial Cells. J Gerontol A Biol Sci Med Sci 2020; 74:787-793. [PMID: 30016403 DOI: 10.1093/gerona/gly167] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Indexed: 12/21/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1α) is a potent transcription factor for mitochondrial function, lipid metabolism, and detoxification in a variety of tissues. PGC1α also promotes brain cell proliferation and memory. However, how PGC1α is involved in aging is not well known. In brain endothelial cells, we found that PGC1α knockdown accelerated DNA damage-induced senescence, evidenced by an increase in senescence-associated β-galactosidase-positive cells and a decrease in cell proliferation and adenosine triphosphate production. PGC1α knockdown delayed DNA damage repair mechanisms compared with the wild-type condition as shown by γ-H2AX foci staining assay. Overexpression of PGC1α reduced senescence-associated β-galactosidase-positive cells and increased the proliferation of senescent cells. Although PGC1α protein levels were not decreased, PGC1 acetylation was increased by ionizing radiation treatment and aging. Histone deacetylase 1 (HDAC1) expression was decreased by ionizing radiation treatment and aging, and downregulation of HDAC1 induced acetylation of PGC1α. HDAC1 knockdown affected sirtuin 1 expression and decreased its deacetylation of PGC1α. In the mouse brain cortex, acetylation of PGC1α was increased by ionizing radiation treatment. These results suggest that acetylation of PGC1α is induced by DNA damage agents such as ionizing radiation, which deregulates mitochondrial mechanisms and metabolism, resulting in acceleration of radiation-induced senescence. Therefore, acetylation of PGC1α may be a cause of brain disorders and has the potential to serve as a therapeutic target for radiation-induced senescence after radiation cancer therapy.
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Affiliation(s)
- Su-Bin Kim
- Division of Applied Radiation Bioscience, Korea Institute of Radiological and Medical Sciences, Seoul
- Department of Biotechnology, School of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Jong-Ik Heo
- Division of Applied Radiation Bioscience, Korea Institute of Radiological and Medical Sciences, Seoul
| | - Hyunggee Kim
- Department of Biotechnology, School of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Kwang Seok Kim
- Division of Applied Radiation Bioscience, Korea Institute of Radiological and Medical Sciences, Seoul
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Porterfield V, Khan SS, Foff EP, Koseoglu MM, Blanco IK, Jayaraman S, Lien E, McConnell MJ, Bloom GS, Lazo JS, Sharlow ER. A three-dimensional dementia model reveals spontaneous cell cycle re-entry and a senescence-associated secretory phenotype. Neurobiol Aging 2020; 90:125-134. [PMID: 32184029 DOI: 10.1016/j.neurobiolaging.2020.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/31/2020] [Accepted: 02/12/2020] [Indexed: 12/12/2022]
Abstract
A hexanucleotide repeat expansion on chromosome 9 open reading frame 72 (C9orf72) is associated with familial amyotrophic lateral sclerosis (ALS) and a subpopulation of patients with sporadic ALS and frontotemporal dementia. We used inducible pluripotent stem cells from neurotypic and C9orf72+ (C9+) ALS patients to derive neuronal progenitor cells. We demonstrated that C9+ and neurotypic neuronal progenitor cells differentiate into neurons. The C9+ neurons, however, spontaneously re-expressed cyclin D1 after 12 weeks, suggesting cell cycle re-engagement. Gene profiling revealed significant increases in senescence-associated genes in C9+ neurons. Moreover, C9+ neurons expressed high levels of mRNA for CXCL8, a chemokine overexpressed by senescent cells, while media from C9+ neurons contained significant levels of CXCL8, CXCL1, IL13, IP10, CX3CL1, and reactive oxygen species, which are components of the senescence-associated secretory phenotype. Thus, re-engagement of cell cycle-associated proteins and a senescence-associated secretory phenotype could be fundamental components of neuronal dysfunction in ALS and frontotemporal dementia.
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Affiliation(s)
- Veronica Porterfield
- Department of Neurology, University of Virginia, Charlottesville, VA, USA; University of Virginia Stem Cell Core, Office of Research Core Administration, University of Virginia, Charlottesville, VA, USA; Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
| | - Shahzad S Khan
- Department of Biology, University of Virginia, Charlottesville, VA, USA
| | - Erin P Foff
- Department of Neurology, University of Virginia, Charlottesville, VA, USA
| | - Mehmet Murat Koseoglu
- Department of Biology, University of Virginia, Charlottesville, VA, USA; Department of Pharmacology, University of Virginia, Charlottesville, VA, USA; Fiske Drug Discovery Laboratory, University of Virginia, Charlottesville, VA, USA
| | - Isabella K Blanco
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Sruthi Jayaraman
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Eric Lien
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Michael J McConnell
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA, USA; Department of Neuroscience, University of Virginia, Charlottesville, VA, USA
| | - George S Bloom
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA; Department of Biology, University of Virginia, Charlottesville, VA, USA; Department of Neuroscience, University of Virginia, Charlottesville, VA, USA
| | - John S Lazo
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA; Fiske Drug Discovery Laboratory, University of Virginia, Charlottesville, VA, USA
| | - Elizabeth R Sharlow
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA; Fiske Drug Discovery Laboratory, University of Virginia, Charlottesville, VA, USA.
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44
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Shukla R, Oh H, Sibille E. Molecular and Cellular Evidence for Age by Disease Interactions: Updates and Path Forward. Am J Geriatr Psychiatry 2020; 28:237-247. [PMID: 31285153 DOI: 10.1016/j.jagp.2019.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/14/2019] [Accepted: 06/01/2019] [Indexed: 12/31/2022]
Abstract
Characterization of age-associated gene expression changes shows that the brain engages a specific set of genes and biologic pathways along a continuous life-long trajectory and that these genes and pathways overlap with those associated with brain-related disorders. Based on this correlative observation, we have suggested a model of age-by-disease interaction by which brain ageing promotes biologic changes associated with diseases and where deviations from expected age-related trajectories, due to biologic and environmental factors, contribute to defining disease risk or resiliency. In this review, we first evaluate various biomarkers that can be used to study age-by-disease interactions and then focus on transcriptome analysis (i.e., the set of all expressed genes) as a useful tool to explore this interaction. Using the specific example of brain-derived neurotrophic factor and brain-derived neurotrophic factor-associated genes, we then describe molecular events and mechanisms potentially contributing to age-by-disease interactions. Finally, we suggest that long-term biologic adaptations within distinct cellular components of cortical microcircuits, as determined by transcriptome analysis, may integrate and mediate the effects of ageing and diseases. Moving forward, we suggest that analysis of transcriptome similarities between ageing and small molecule-induced system perturbations may lead to novel therapeutics discovery.
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Affiliation(s)
- Rammohan Shukla
- Campbell Family Mental Health Research Institute of CAMH, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Hyunjung Oh
- Campbell Family Mental Health Research Institute of CAMH, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Etienne Sibille
- Campbell Family Mental Health Research Institute of CAMH, Toronto, Canada; Department of Psychiatry, University of Toronto, Toronto, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.
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45
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Limbad C, Oron TR, Alimirah F, Davalos AR, Tracy TE, Gan L, Desprez PY, Campisi J. Astrocyte senescence promotes glutamate toxicity in cortical neurons. PLoS One 2020; 15:e0227887. [PMID: 31945125 PMCID: PMC6964973 DOI: 10.1371/journal.pone.0227887] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/31/2019] [Indexed: 12/13/2022] Open
Abstract
Neurodegeneration is a major age-related pathology. Cognitive decline is characteristic of patients with Alzheimer’s and related dementias and cancer patients after chemo- or radio-therapies. A recently emerged driver of these and other age-related pathologies is cellular senescence, a cell fate that entails a permanent cell cycle arrest and pro-inflammatory senescence-associated secretory phenotype (SASP). Although there is a link between inflammation and neurodegenerative diseases, there are many open questions regarding how cellular senescence affects neurodegenerative pathologies. Among the various cell types in the brain, astrocytes are the most abundant. Astrocytes have proliferative capacity and are essential for neuron survival. Here, we investigated the phenotype of primary human astrocytes made senescent by X-irradiation, and identified genes encoding glutamate and potassium transporters as specifically downregulated upon senescence. This down regulation led to neuronal cell death in co-culture assays. Unbiased RNA sequencing of transcripts expressed by non-senescent and senescent astrocytes confirmed that glutamate homeostasis pathway declines upon senescence. Our results suggest a key role for cellular senescence, particularly in astrocytes, in excitotoxicity, which may lead to neurodegeneration including Alzheimer’s disease and related dementias.
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Affiliation(s)
- Chandani Limbad
- Buck Institute for Research on Aging, Novato, California, United States of America
- Comparative Biochemistry Graduate Program, University of California, Berkeley, California, United States of America
| | - Tal Ronnen Oron
- Buck Institute for Research on Aging, Novato, California, United States of America
| | - Fatouma Alimirah
- Buck Institute for Research on Aging, Novato, California, United States of America
| | - Albert R. Davalos
- Buck Institute for Research on Aging, Novato, California, United States of America
| | - Tara E. Tracy
- Buck Institute for Research on Aging, Novato, California, United States of America
- Gladstone Institute of Neurological Disease, San Francisco, California, United States of America
- Department of Neurology, Weill Institute of Neuroscience, University of California, San Francisco, California, United States of America
| | - Li Gan
- Gladstone Institute of Neurological Disease, San Francisco, California, United States of America
- Department of Neurology, Weill Institute of Neuroscience, University of California, San Francisco, California, United States of America
| | - Pierre-Yves Desprez
- Buck Institute for Research on Aging, Novato, California, United States of America
- California Pacific Medical Center, San Francisco, California, United States of America
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, California, United States of America
- Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
- * E-mail: ,
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46
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Abstract
Aging brain becomes susceptible to neurodegenerative diseases due to the shifting of microglia and astrocyte phenotypes to an active “pro-inflammatory” state, causing chronic low-grade neuroinflammation. Despite the fact that the role of neuroinflammation during aging has been extensively studied in recent years, the underlying causes remain unclear. The identification of relevant proteins and understanding their potential roles in neuroinflammation can help explain their potential of becoming biomarkers in the aging brain and as drug targets for prevention and treatment. This will eventually reduce the chances of developing neurodegenerative diseases and promote healthier lives in the elderly. In this review, we have summarized the morphological and cellular changes in the aging brain, the effects of age-related neuroinflammation, and the potential role of cofilin-1 during neuroinflammation. We also discuss other factors contributing to brain aging and neuroinflammation.
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Affiliation(s)
- Amsha S Alsegiani
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH, USA
| | - Zahoor A Shah
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH, USA
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47
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Cohen-Carmon D, Sorek M, Lerner V, Divya MS, Nissim-Rafinia M, Yarom Y, Meshorer E. Progerin-Induced Transcriptional Changes in Huntington's Disease Human Pluripotent Stem Cell-Derived Neurons. Mol Neurobiol 2019; 57:1768-1777. [PMID: 31834602 DOI: 10.1007/s12035-019-01839-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 11/14/2019] [Indexed: 01/08/2023]
Abstract
Huntington's disease (HD) is a neurodegenerative late-onset genetic disorder caused by CAG expansions in the coding region of the Huntingtin (HTT) gene, resulting in a poly-glutamine (polyQ) expanded HTT protein. Considerable efforts have been devoted for studying HD and other polyQ diseases using animal models and cell culture systems, but no treatment currently exists. Human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) offer an elegant solution for modeling human diseases. However, as embryonic or rejuvenated cells, respectively, these pluripotent stem cells (PSCs) do not recapitulate the late-onset feature of the disease. Here, we applied a robust and rapid differentiation protocol to derive electrophysiologically active striatal GABAergic neurons from human wild-type (WT) and HD ESCs and iPSCs. RNA-seq analyses revealed that HD and WT PSC-derived neurons are highly similar in their gene expression patterns. Interestingly, ectopic expression of Progerin in both WT and HD neurons exacerbated the otherwise non-significant changes in gene expression between these cells, revealing IGF1 and genes involved in neurogenesis and nervous system development as consistently altered in the HD cells. This work provides a useful tool for modeling HD in human PSCs and reveals potential molecular targets altered in HD neurons.
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Affiliation(s)
- Dorit Cohen-Carmon
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Matan Sorek
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.,The Edmond and Lily Safra Center for Brain Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Vitaly Lerner
- The Edmond and Lily Safra Center for Brain Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.,Department of Neurobiology, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Mundackal S Divya
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.,Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, Kerala, India
| | - Malka Nissim-Rafinia
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Yosef Yarom
- The Edmond and Lily Safra Center for Brain Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.,Department of Neurobiology, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Eran Meshorer
- Department of Genetics, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel. .,The Edmond and Lily Safra Center for Brain Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel.
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48
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Cruciani G, Domingues P, Fedorova M, Galli F, Spickett CM. Redox lipidomics and adductomics - Advanced analytical strategies to study oxidized lipids and lipid-protein adducts. Free Radic Biol Med 2019; 144:1-5. [PMID: 31369839 DOI: 10.1016/j.freeradbiomed.2019.07.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Gabriele Cruciani
- Department of Chemistry, Biology and Biotechnology, Università degli Studi di Perugia, Italy.
| | - Pedro Domingues
- Mass Spectrometry Centre, Department of Chemistry & QOPNA/LAQV, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy, University of Leipzig, Germany; Center for Biotechnology and Biomedicine, University of Leipzig, Germany.
| | - Francesco Galli
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, Italy.
| | - Corinne M Spickett
- Department of Biosciences, School of Life and Health Sciences, Aston University, Birmingham, UK.
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49
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Targeting normal and cancer senescent cells as a strategy of senotherapy. Ageing Res Rev 2019; 55:100941. [PMID: 31408714 DOI: 10.1016/j.arr.2019.100941] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 07/04/2019] [Accepted: 08/06/2019] [Indexed: 12/19/2022]
Abstract
Senotherapy is an antiageing strategy. It refers to selective killing of senescent cells by senolytic agents, strengthening the activity of immune cells that eliminate senescent cells or alleviating the secretory phenotype (SASP) of senescent cells. As senescent cells accumulate with age and are considered to be at the root of age-related disorders, senotherapy seems to be very promising in improving healthspan. Genetic approaches, which allowed to selectively induce death of senescent cells in transgenic mice, provided proof-of-concept evidence that elimination of senescent cells can be a therapeutic approach for treating many age-related diseases. Translating these results into humans is based on searching for synthetic and natural compounds, which are able to exert such beneficial effects. The major challenge in the field is to show efficacy, safety and tolerability of senotherapy in humans. The question is how these therapeutics can influence senescence of non-dividing post-mitotic cells. Another issue concerns senescence of cancer cells induced during therapy as there is a risk of resumption of senescent cell division that could terminate in cancer renewal. Thus, development of an effective senotherapeutic strategy is also an urgent issue in cancer treatment. Different aspects, both beneficial and potentially detrimental, will be discussed in this review.
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50
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Khorraminejad-Shirazi M, Dorvash M, Estedlal A, Hoveidaei AH, Mazloomrezaei M, Mosaddeghi P. Aging: A cell source limiting factor in tissue engineering. World J Stem Cells 2019; 11:787-802. [PMID: 31692986 PMCID: PMC6828594 DOI: 10.4252/wjsc.v11.i10.787] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 05/03/2019] [Accepted: 09/05/2019] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering has yet to reach its ideal goal, i.e. creating profitable off-the-shelf tissues and organs, designing scaffolds and three-dimensional tissue architectures that can maintain the blood supply, proper biomaterial selection, and identifying the most efficient cell source for use in cell therapy and tissue engineering. These are still the major challenges in this field. Regarding the identification of the most appropriate cell source, aging as a factor that affects both somatic and stem cells and limits their function and applications is a preventable and, at least to some extents, a reversible phenomenon. Here, we reviewed different stem cell types, namely embryonic stem cells, adult stem cells, induced pluripotent stem cells, and genetically modified stem cells, as well as their sources, i.e. autologous, allogeneic, and xenogeneic sources. Afterward, we approached aging by discussing the functional decline of aged stem cells and different intrinsic and extrinsic factors that are involved in stem cell aging including replicative senescence and Hayflick limit, autophagy, epigenetic changes, miRNAs, mTOR and AMPK pathways, and the role of mitochondria in stem cell senescence. Finally, various interventions for rejuvenation and geroprotection of stem cells are discussed. These interventions can be applied in cell therapy and tissue engineering methods to conquer aging as a limiting factor, both in original cell source and in the in vitro proliferated cells.
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Affiliation(s)
- Mohammadhossein Khorraminejad-Shirazi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Cell and Molecular Medicine Student Research Group, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
| | - Mohammadreza Dorvash
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Cell and Molecular Medicine Student Research Group, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 7134814336, Iran
| | - Alireza Estedlal
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Cell and Molecular Medicine Student Research Group, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
| | - Amir Human Hoveidaei
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
| | - Mohsen Mazloomrezaei
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Cell and Molecular Medicine Student Research Group, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
| | - Pouria Mosaddeghi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Cell and Molecular Medicine Student Research Group, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 7134814336, Iran
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