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Matuszewska J, Krawiec A, Radziemski A, Uruski P, Tykarski A, Mikuła-Pietrasik J, Książek K. Alterations of receptors and insulin-like growth factor binding proteins in senescent cells. Eur J Cell Biol 2024; 103:151438. [PMID: 38945074 DOI: 10.1016/j.ejcb.2024.151438] [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: 02/08/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024] Open
Abstract
The knowledge about cellular senescence expands dynamically, providing more and more conclusive evidence of its triggers, mechanisms, and consequences. Senescence-associated secretory phenotype (SASP), one of the most important functional traits of senescent cells, is responsible for a large extent of their context-dependent activity. Both SASP's components and signaling pathways are well-defined. A literature review shows, however, that a relatively underinvestigated aspect of senescent cell autocrine and paracrine activity is the change in the production of proteins responsible for the reception and transmission of SASP signals, i.e., receptors and binding proteins. For this reason, we present in this article the current state of knowledge regarding senescence-associated changes in cellular receptors and insulin-like growth factor binding proteins. We also discuss the role of these alterations in senescence induction and maintenance, pro-cancerogenic effects of senescent cells, and aging-related structural and functional malfunctions.
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Affiliation(s)
- Julia Matuszewska
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland
| | - Adrianna Krawiec
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland
| | - Artur Radziemski
- Poznan University of Medical Sciences, Department of Hypertensiology, Długa 1/2 Str., Poznań 61-848, Poland
| | - Paweł Uruski
- Poznan University of Medical Sciences, Department of Hypertensiology, Długa 1/2 Str., Poznań 61-848, Poland
| | - Andrzej Tykarski
- Poznan University of Medical Sciences, Department of Hypertensiology, Długa 1/2 Str., Poznań 61-848, Poland
| | - Justyna Mikuła-Pietrasik
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland
| | - Krzysztof Książek
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland.
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2
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Nasab MG, Heidari A, Sedighi M, Shakerian N, Mirbeyk M, Saghazadeh A, Rezaei N. Dietary inflammatory index and neuropsychiatric disorders. Rev Neurosci 2024; 35:21-33. [PMID: 37459114 DOI: 10.1515/revneuro-2023-0047] [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: 04/17/2023] [Accepted: 06/24/2023] [Indexed: 01/10/2024]
Abstract
Neuropsychiatric disorders (NPDs) are considered a potential threat to mental health. Inflammation predominantly plays a role in the pathophysiology of NPDs. Dietary patterns are widely postulated to be involved in the physiological response to inflammation. This review aims to discuss the literature on how dietary inflammatory index (DII) is related to inflammation and, consequently, NPDs. After comprehensive scrutiny in different databases, the articles that investigated the relation of DII score and various NPDs and psychological circumstances were included. The association between dietary patterns and mental disorders comprising depression, anxiety, and stress proved the role of a proinflammatory diet in these conditions' exacerbation. Aging is another condition closely associated with DII. The impact of proinflammatory and anti-inflammatory diet on sleep quality indicated related disorders like sleep latency and day dysfunctions among the different populations are in relation with the high DII score. The potential effects of genetic backgrounds, dietary patterns, and the gut microbiome on DII are discussed as well. To plan preventive or therapeutic interventions considering the DII, these factors, especially genetic variations, should be considered as there is a growing body of literature indicating the role of personalized medicine in different NPDs. To the best of our knowledge, there is a limited number of RCTs on this subject, so future research should evaluate the causality via RCTs and look for therapeutic interventions with an eye on personalized medicine using information about DII in NPDs.
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Affiliation(s)
- Mahsa Golshani Nasab
- Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
- Systematic Review and Meta-Analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tabriz, Iran
| | - Arash Heidari
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Systematic Review and Meta-Analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mohammadreza Sedighi
- Systematic Review and Meta-Analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Narges Shakerian
- Student Research Committee, School of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Systematic Review and Meta-Analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Ahvaz, Iran
| | - Mona Mirbeyk
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Systematic Review and Meta-Analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Amene Saghazadeh
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Meta Cognition Interest Group (MCIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity, Universal Scientific Education and Research Network (USERN), Tehran, Iran
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Khalil R, Diab-Assaf M, Lemaitre JM. Emerging Therapeutic Approaches to Target the Dark Side of Senescent Cells: New Hopes to Treat Aging as a Disease and to Delay Age-Related Pathologies. Cells 2023; 12:915. [PMID: 36980256 PMCID: PMC10047596 DOI: 10.3390/cells12060915] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 03/19/2023] Open
Abstract
Life expectancy has drastically increased over the last few decades worldwide, with important social and medical burdens and costs. To stay healthy longer and to avoid chronic disease have become essential issues. Organismal aging is a complex process that involves progressive destruction of tissue functionality and loss of regenerative capacity. One of the most important aging hallmarks is cellular senescence, which is a stable state of cell cycle arrest that occurs in response to cumulated cell stresses and damages. Cellular senescence is a physiological mechanism that has both beneficial and detrimental consequences. Senescence limits tumorigenesis, lifelong tissue damage, and is involved in different biological processes, such as morphogenesis, regeneration, and wound healing. However, in the elderly, senescent cells increasingly accumulate in several organs and secrete a combination of senescence associated factors, contributing to the development of various age-related diseases, including cancer. Several studies have revealed major molecular pathways controlling the senescent phenotype, as well as the ones regulating its interactions with the immune system. Attenuating the senescence-associated secretory phenotype (SASP) or eliminating senescent cells have emerged as attractive strategies aiming to reverse or delay the onset of aging diseases. Here, we review current senotherapies designed to suppress the deleterious effect of SASP by senomorphics or to selectively kill senescent cells by "senolytics" or by immune system-based approaches. These recent investigations are promising as radical new controls of aging pathologies and associated multimorbidities.
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Affiliation(s)
- Roula Khalil
- IRMB, University Montpellier, INSERM, 34090 Montpellier, France;
| | - Mona Diab-Assaf
- Fanar Faculty of Sciences II, Lebanese University, Beirut P.O. Box 90656, Lebanon;
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Prašnikar E, Borišek J, Perdih A. Senescent cells as promising targets to tackle age-related diseases. Ageing Res Rev 2021; 66:101251. [PMID: 33385543 DOI: 10.1016/j.arr.2020.101251] [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: 08/07/2020] [Revised: 11/30/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022]
Abstract
As the world's population progressively ages, the burden on the socio-economic and health systems is escalating, demanding sustainable and lasting solutions. Cellular senescence, one of the hallmarks of ageing, is a state of irreversible cell cycle arrest that occurs in response to various genotoxic stressors and is considered an important factor in the development of many age-related diseases and therefore a potential therapeutic target. Here, the role of senescent cells in age-related diseases is discussed, focusing on their formation and main characteristics. The mechanisms leading to senescent cells are presented, including replicative and premature senescence as well as senescence that occurs in various physiological processes, such as wound healing. The second part comprises a comprehensive description of various biomarkers currently used for the detection of senescent cells along with the investigated therapeutic approaches, namely senolytics, senomorphics and the clearance of senescent cells by the immune system. Potential delivery systems suitable for such therapies and model organisms to study senescence are also briefly examined. This in-depth overview of cellular senescence contributes to a deeper understanding of a rapidly evolving area aimed to tackle the age-related diseases in a more mechanistic way, as well as highlights future research opportunities.
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Niklander SE, Crane HL, Darda L, Lambert DW, Hunter KD. The role of icIL-1RA in keratinocyte senescence and development of the senescence-associated secretory phenotype. J Cell Sci 2021; 134:jcs.252080. [PMID: 33526711 DOI: 10.1242/jcs.252080] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 01/13/2021] [Indexed: 12/27/2022] Open
Abstract
There is compelling evidence that senescent cells, through the senescence-associated secretory phenotype (SASP), can promote malignant transformation and invasion. Interleukin-1 (IL-1) is a key mediator of this cytokine network, but the control of its activity in the senescence programme has not been elucidated. IL-1 signalling is regulated by IL-1RA, which has four variants. Here, we show that expression of intracellular IL-1RA type 1 (icIL-1RA1), which competitively inhibits binding of IL-1 to its receptor, is progressively lost during oral carcinogenesis ex vivo and that the pattern of expression is associated with keratinocyte replicative fate in vitro We demonstrate that icIL-1RA1 is an important regulator of the SASP in mortal cells, as CRISPR/Cas9-mediated icIL-1RA1 knockdown in normal and mortal dysplastic oral keratinocytes is followed by increased IL-6 and IL-8 secretion, and rapid senescence following release from RhoA-activated kinase inhibition. Thus, we suggest that downregulation of icIL-1RA1 in early stages of the carcinogenesis process can enable the development of a premature and deregulated SASP, creating a pro-inflammatory state in which cancer is more likely to arise.
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Affiliation(s)
- Sven E Niklander
- Unit of Oral and Maxillofacial Medicine, Pathology and Surgery, University of Sheffield, Sheffield S10 2TA, UK.,Departamento de Cirugia y Patologia Oral, Facultad de Odontologia, Universidad Andres Bello, 2520000 Viña del Mar, Chile
| | - Hannah L Crane
- Unit of Oral and Maxillofacial Medicine, Pathology and Surgery, University of Sheffield, Sheffield S10 2TA, UK
| | - Lav Darda
- Unit of Oral and Maxillofacial Medicine, Pathology and Surgery, University of Sheffield, Sheffield S10 2TA, UK
| | - Daniel W Lambert
- Unit of Oral and Maxillofacial Medicine, Pathology and Surgery, University of Sheffield, Sheffield S10 2TA, UK
| | - Keith D Hunter
- Unit of Oral and Maxillofacial Medicine, Pathology and Surgery, University of Sheffield, Sheffield S10 2TA, UK .,Oral Biology and Pathology, University of Pretoria, Pretoria, South Africa
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Liuweidihuang Pill Alleviates Inflammation of the Testis via AMPK/SIRT1/NF- κB Pathway in Aging Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:2792738. [PMID: 32565851 PMCID: PMC7267858 DOI: 10.1155/2020/2792738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/28/2020] [Indexed: 12/29/2022]
Abstract
Liuweidihuang Pill (LP) is a traditional Chinese herbal formula that is often used in clinical practice to treat kidney deficiency syndrome. The present study investigated the antiaging effects of LP in a D-galactose- (D-Gal-) induced subacute aging rat model. The study also attempted to explore whether anti-inflammatory mechanisms that underpin the antiaging effects are mediated by the AMPK/SIRT1/NF-κB signaling pathway. Rats were subcutaneously injected with D-Gal at a dosage of 100 mg/kg/d for 8 weeks. Upon successful induction of aging in the rats, the animal was administered LP at 0.9 g/kg/d by gavage for 4 weeks. Proteins of the testis were subsequently examined by western blot analysis, and associated locations in the testicular tissue were determined by immunohistochemistry. We observed that LP exerted antiaging effects in aging rats following the activation of AMPK/SIRT1. It was also observed that LP inhibited the expression of NF-κB, thereby further attenuating inflammation of the testis. Therefore, LP can alleviate inflammation of the testis via the AMPK/SIRT1/NF-κB pathway in aging rats.
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Zhang C, Lee HJ, Shrivastava A, Wang R, McQuiston TJ, Challberg SS, Pollok BA, Wang T. Long-Term In Vitro Expansion of Epithelial Stem Cells Enabled by Pharmacological Inhibition of PAK1-ROCK-Myosin II and TGF-β Signaling. Cell Rep 2019; 25:598-610.e5. [PMID: 30332641 PMCID: PMC6284236 DOI: 10.1016/j.celrep.2018.09.072] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 06/01/2018] [Accepted: 09/21/2018] [Indexed: 01/22/2023] Open
Abstract
Despite substantial self-renewal capability in vivo, epithelial stem and progenitor cells located in various tissues expand for a few passages in vitro in feeder-free condition before they succumb to growth arrest. Here, we describe the EpiX method, which utilizes small molecules that inhibit PAK1-ROCK-Myosin II and TGF-β signaling to achieve over one trillion-fold expansion of human epithelial stem and progenitor cells from skin, airway, mammary, and prostate glands in the absence of feeder cells. Transcriptomic and epigenomic studies show that this condition helps epithelial cells to overcome stresses for continuous proliferation. EpiX-expanded basal epithelial cells differentiate into mature epithelial cells consistent with their tissue origins. Whole-genome sequencing reveals that the cells retain remarkable genome integrity after extensive in vitro expansion without acquiring tumorigenicity. EpiX technology provides a solution to exploit the potential of tissue-resident epithelial stem and progenitor cells for regenerative medicine.
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Affiliation(s)
- Chengkang Zhang
- Propagenix, 9605 Medical Center Drive, Suite 325, Rockville, MD 20850, USA.
| | - Hyung Joo Lee
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63108, USA; The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63108, USA
| | - Anura Shrivastava
- Propagenix, 9605 Medical Center Drive, Suite 325, Rockville, MD 20850, USA
| | - Ruipeng Wang
- Propagenix, 9605 Medical Center Drive, Suite 325, Rockville, MD 20850, USA
| | - Travis J McQuiston
- Propagenix, 9605 Medical Center Drive, Suite 325, Rockville, MD 20850, USA
| | - Sharon S Challberg
- Propagenix, 9605 Medical Center Drive, Suite 325, Rockville, MD 20850, USA
| | - Brian A Pollok
- Propagenix, 9605 Medical Center Drive, Suite 325, Rockville, MD 20850, USA
| | - Ting Wang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63108, USA; The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63108, USA.
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Osorio C, Kanukuntla T, Diaz E, Jafri N, Cummings M, Sfera A. The Post-amyloid Era in Alzheimer's Disease: Trust Your Gut Feeling. Front Aging Neurosci 2019; 11:143. [PMID: 31297054 PMCID: PMC6608545 DOI: 10.3389/fnagi.2019.00143] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 05/29/2019] [Indexed: 12/14/2022] Open
Abstract
The amyloid hypothesis, the assumption that beta-amyloid toxicity is the primary cause of neuronal and synaptic loss, has been the mainstream research concept in Alzheimer's disease for the past two decades. Currently, this model is quietly being replaced by a more holistic, “systemic disease” paradigm which, like the aging process, affects multiple body tissues and organs, including the gut microbiota. It is well-established that inflammation is a hallmark of cellular senescence; however, the infection-senescence link has been less explored. Microbiota-induced senescence is a gradually emerging concept promoted by the discovery of pathogens and their products in Alzheimer's disease brains associated with senescent neurons, glia, and endothelial cells. Infectious agents have previously been associated with Alzheimer's disease, but the cause vs. effect issue could not be resolved. A recent study may have settled this debate as it shows that gingipain, a Porphyromonas gingivalis toxin, can be detected not only in Alzheimer's disease but also in the brains of older individuals deceased prior to developing the illness. In this review, we take the position that gut and other microbes from the body periphery reach the brain by triggering intestinal and blood-brain barrier senescence and disruption. We also surmise that novel Alzheimer's disease findings, including neuronal somatic mosaicism, iron dyshomeostasis, aggressive glial phenotypes, and loss of aerobic glycolysis, can be explained by the infection-senescence model. In addition, we discuss potential cellular senescence targets and therapeutic strategies, including iron chelators, inflammasome inhibitors, senolytic antibiotics, mitophagy inducers, and epigenetic metabolic reprograming.
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Affiliation(s)
- Carolina Osorio
- Psychiatry, Loma Linda University, Loma Linda, CA, United States
| | - Tulasi Kanukuntla
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Eddie Diaz
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Nyla Jafri
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Michael Cummings
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Adonis Sfera
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
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9
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Buhl JL, Selt F, Hielscher T, Guiho R, Ecker J, Sahm F, Ridinger J, Riehl D, Usta D, Ismer B, Sommerkamp AC, Martinez-Barbera JP, Wefers AK, Remke M, Picard D, Pusch S, Gronych J, Oehme I, van Tilburg CM, Kool M, Kuhn D, Capper D, von Deimling A, Schuhmann MU, Herold-Mende C, Korshunov A, Brummer T, Pfister SM, Jones DTW, Witt O, Milde T. The Senescence-associated Secretory Phenotype Mediates Oncogene-induced Senescence in Pediatric Pilocytic Astrocytoma. Clin Cancer Res 2019; 25:1851-1866. [PMID: 30530705 DOI: 10.1158/1078-0432.ccr-18-1965] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 11/02/2018] [Accepted: 12/04/2018] [Indexed: 11/16/2022]
Abstract
PURPOSE Pilocytic astrocytoma is the most common childhood brain tumor, characterized by constitutive MAPK activation. MAPK signaling induces oncogene-induced senescence (OIS), which may cause unpredictable growth behavior of pilocytic astrocytomas. The senescence-associated secretory phenotype (SASP) has been shown to regulate OIS, but its role in pilocytic astrocytoma remains unknown.Experimental Design: The patient-derived pilocytic astrocytoma cell culture model, DKFZ-BT66, was used to demonstrate presence of the SASP and analyze its impact on OIS in pilocytic astrocytoma. The model allows for doxycycline-inducible switching between proliferation and OIS. Both states were studied using gene expression profiling (GEP), Western blot, ELISA, and cell viability testing. Primary pilocytic astrocytoma tumors were analyzed by GEP and multiplex assay. RESULTS SASP factors were upregulated in primary human and murine pilocytic astrocytoma and during OIS in DKFZ-BT66 cells. Conditioned medium induced growth arrest of proliferating pilocytic astrocytoma cells. The SASP factors IL1B and IL6 were upregulated in primary pilocytic astrocytoma, and both pathways were regulated during OIS in DKFZ-BT66. Stimulation with rIL1B but not rIL6 reduced growth of DKFZ-BT66 cells and induced the SASP. Anti-inflammatory treatment with dexamethasone induced regrowth of senescent cells and inhibited the SASP. Senescent DKFZ-BT66 cells responded to senolytic BCL2 inhibitors. High IL1B and SASP expression in pilocytic astrocytoma tumors was associated with favorable progression-free survival. CONCLUSIONS We provide evidence for the SASP regulating OIS in pediatric pilocytic astrocytoma, with IL1B as a relevant mediator. SASP expression could enable prediction of progression in patients with pilocytic astrocytoma. Further investigation of the SASP driving the unpredictable growth of pilocytic astrocytomas, and its possible therapeutic application, is warranted.
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Affiliation(s)
- Juliane L Buhl
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Florian Selt
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Hielscher
- Division of Biostatistics, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Romain Guiho
- Developmental Biology and Cancer Programme, Birth Defects Research Centre, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Jonas Ecker
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Felix Sahm
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Johannes Ridinger
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Dennis Riehl
- Immune Monitoring Unit, DKFZ/NCT, Heidelberg, Germany
| | - Diren Usta
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Britta Ismer
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Pediatric Glioma Research Group, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Alexander C Sommerkamp
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Pediatric Glioma Research Group, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - J P Martinez-Barbera
- Developmental Biology and Cancer Programme, Birth Defects Research Centre, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Annika K Wefers
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Marc Remke
- Department of Pediatric Neuro-Oncogenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany, and German Consortium for Translational Cancer Research (DKTK), partner site Essen/Düsseldorf, Düsseldorf, Germany
- Department of Pediatric Oncology, Hematology, and Clinical Immunology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
- Department of Neuropathology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Daniel Picard
- Department of Pediatric Neuro-Oncogenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany, and German Consortium for Translational Cancer Research (DKTK), partner site Essen/Düsseldorf, Düsseldorf, Germany
- Department of Pediatric Oncology, Hematology, and Clinical Immunology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
- Department of Neuropathology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Stefan Pusch
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Jan Gronych
- Division of Molecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ina Oehme
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Cornelis M van Tilburg
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Marcel Kool
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Daniela Kuhn
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - David Capper
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Neuropathology, Berlin, Germany
| | - Andreas von Deimling
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Martin U Schuhmann
- Division of Pediatric Neurosurgery, Department of Neurosurgery, University Hospital Tübingen, Tübingen, Germany
| | | | - Andrey Korshunov
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Tilman Brummer
- Institute of Molecular Medicine and Cell Research (IMMZ), Faculty of Medicine, University of Freiburg, Freiburg, Germany, Centre for Biological Signalling Studies BIOSS, University of Freiburg and German Consortium for Translational Cancer Research (DKTK), Freiburg, Germany, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan M Pfister
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - David T W Jones
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Pediatric Glioma Research Group, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
| | - Olaf Witt
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Till Milde
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
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10
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Mikuła-Pietrasik J, Uruski P, Pakuła M, Maksin K, Szubert S, Woźniak A, Naumowicz E, Szpurek D, Tykarski A, Książek K. Oxidative stress contributes to hepatocyte growth factor-dependent pro-senescence activity of ovarian cancer cells. Free Radic Biol Med 2017; 110:270-279. [PMID: 28652056 DOI: 10.1016/j.freeradbiomed.2017.06.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 06/14/2017] [Accepted: 06/23/2017] [Indexed: 11/26/2022]
Abstract
The cancer-promoting activity of senescent peritoneal mesothelial cells (HPMCs) has already been well evidenced both in vitro and in vivo. Here we sought to determine if ovarian cancer cells may activate senescence in HPMCs. The study showed that conditioned medium (CM) from ovarian cancer cells (OVCAR-3, SKOV-3, A2780) inhibited growth and promoted the development of senescence phenotype (increased SA-β-Gal, γ-H2A.X, 53BP1, and decreased Cx43) in HPMCs. An analysis of tumors isolated from the peritoneum of patients with ovarian cancer revealed an abundance of senescent HPMCs in proximity to cancerous tissue. The presence of senescent HPMCs was incidental when fragments of peritoneum free from cancer were evaluated. An analysis of the cells' secretome followed by intervention studies with exogenous proteins and neutralizing antibodies revealed hepatocyte growth factor (HGF) as the mediator of the pro-senescence impact of the cancer cells. The activity of cancerous CM and HGF was associated with an induction of mitochondrial oxidative stress. Signaling pathways involved in the senescence of HPMCs elicited by the cancer-derived CM and HGF included p38 MAPK, AKT and NF-κB. HPMCs that senesced prematurely in response to the cancer-derived CM promoted adhesion of ovarian cancer cells, however this effect was effectively prevented by the cell protection against oxidative stress. Collectively, our findings indicate that ovarian cancer cells can elicit HGF-dependent senescence in HPMCs, which may contribute to the formation of a metastatic niche for these cells within the peritoneal cavity.
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Affiliation(s)
- Justyna Mikuła-Pietrasik
- Department of Hypertensiology, Angiology and Internal Medicine, Poznań University of Medical Sciences, Długa 1/2 Str., 61-848 Poznań, Poland.
| | - Paweł Uruski
- Department of Hypertensiology, Angiology and Internal Medicine, Poznań University of Medical Sciences, Długa 1/2 Str., 61-848 Poznań, Poland.
| | - Martyna Pakuła
- Department of Hypertensiology, Angiology and Internal Medicine, Poznań University of Medical Sciences, Długa 1/2 Str., 61-848 Poznań, Poland.
| | - Konstantin Maksin
- Department of Clinical Pathology, Poznań University of Medical Sciences, Przybyszewskiego 49 Str., 60-355 Poznań, Poland.
| | - Sebastian Szubert
- Division of Gynecological Surgery, Poznań University of Medical Sciences, Polna 33 Str, 60-535 Poznań, Poland.
| | - Aldona Woźniak
- Department of Clinical Pathology, Poznań University of Medical Sciences, Przybyszewskiego 49 Str., 60-355 Poznań, Poland.
| | - Eryk Naumowicz
- General Surgery Ward, Medical Centre HCP, 28 Czerwca 1956 r. 223/229 Str., 61-485 Poznań, Poland.
| | - Dariusz Szpurek
- Division of Gynecological Surgery, Poznań University of Medical Sciences, Polna 33 Str, 60-535 Poznań, Poland.
| | - Andrzej Tykarski
- Department of Hypertensiology, Angiology and Internal Medicine, Poznań University of Medical Sciences, Długa 1/2 Str., 61-848 Poznań, Poland.
| | - Krzysztof Książek
- Department of Hypertensiology, Angiology and Internal Medicine, Poznań University of Medical Sciences, Długa 1/2 Str., 61-848 Poznań, Poland.
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11
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Xu S, Huang H, Li N, Zhang B, Jia Y, Yang Y, Yuan Y, Xiong XD, Wang D, Zheng HL, Liu X. MicroRNA-33 promotes the replicative senescence of mouse embryonic fibroblasts by suppressing CDK6. Biochem Biophys Res Commun 2016; 473:1064-1070. [PMID: 27059142 DOI: 10.1016/j.bbrc.2016.04.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 04/04/2016] [Indexed: 01/17/2023]
Abstract
MicroRNAs are a large class of tiny noncoding RNAs, which have emerged as critical regulators of gene expression, and thus are involved in multiple cellular processes, including cellular senescence. MicroRNA-33 has previously been established to exert crucial effect on cell proliferation, lipid metabolism and cholesterol metabolism. Nonetheless, the association between microRNA-33 and cellular senescence and its underlying molecular mechanism are far to be elucidated. The present study has attempted to probe into the effect of microRNA-33 on MEFs senescence. Our data unveiled that microRNA-33 was dramatically down-regulated in senescent MEFs compared to the young MEFs, and ectopic expression of microRNA-33 promoted MEFs senescence, while knock-down of microRNA-33 exhibited a protective effect against senescence phenotype. Moreover, we verified CDK6 as a direct target of microRNA-33 in mouse. Silencing of CDK6 induced the premature senescence phenotype of MEFs similarly as microRNA-33, while enforced expression of CDK6 significantly reverse the senescence-induction effect of microRNA-33. Taken together, our results suggested that microRNA-33 enhanced the replicative senescence of MEFs potentially by suppressing CDK6 expression.
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Affiliation(s)
- Shun Xu
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Haijiao Huang
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Nanhong Li
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Bing Zhang
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Yubin Jia
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Yukun Yang
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Yuan Yuan
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Xing-Dong Xiong
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Dengchuan Wang
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Hui-Ling Zheng
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China
| | - Xinguang Liu
- Institute of Aging Research, Guangdong Medical University, Dongguan, PR China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan, PR China; Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, PR China.
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12
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Venturelli S, Berger A, Weiland T, Essmann F, Waibel M, Nuebling T, Häcker S, Schenk M, Schulze-Osthoff K, Salih HR, Fulda S, Sipos B, Johnstone RW, Lauer UM, Bitzer M. Differential induction of apoptosis and senescence by the DNA methyltransferase inhibitors 5-azacytidine and 5-aza-2'-deoxycytidine in solid tumor cells. Mol Cancer Ther 2013; 12:2226-36. [PMID: 23924947 DOI: 10.1158/1535-7163.mct-13-0137] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Epigenetic alterations are a hallmark of cancer that govern the silencing of genes. Up to now, 5-azacytidine (5-aza-CR, Vidaza) and 5-aza-2'-deoxycytidine (5-aza-dC, Dacogen) are the only clinically approved DNA methyltransferase inhibitors (DNMTi). Current effort tries to exploit DNMTi application beyond acute leukemia or myelodysplastic syndrome, especially to solid tumors. Although both drugs only differ by a minimal structural difference, they trigger distinct molecular mechanisms that are highly relevant for a rational choice of new combination therapies. Therefore, we investigated cell death pathways in vitro in human hepatoma, colon, renal, and lung cancer cells and in vivo in chorioallantoic membrane and xenograft models. Real-time cancer cell monitoring and cytokine profiling revealed a profoundly distinct response pattern to both drugs. 5-aza-dC induced p53-dependent tumor cell senescence and a high number of DNA double-strand breaks. In contrast, 5-aza-CR downregulated p53, induced caspase activation and apoptosis. These individual response patterns of tumor cells could be verified in vivo in chorioallantoic membrane assays and in a hepatoma xenograft model. Although 5-aza-CR and 5-aza-dC are viewed as drugs with similar therapeutic activity, they induce a diverse molecular response in tumor cells. These findings together with other reported differences enable and facilitate a rational design of new combination strategies to further exploit the epigenetic mode of action of these two drugs in different areas of clinical oncology.
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Affiliation(s)
- Sascha Venturelli
- Corresponding Author: Michael Bitzer, Medical University Hospital, University of Tuebingen, Otfried-Mueller-Str. 10, Tuebingen D-72076, Germany.
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13
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Sakabe I, Asai A, Iijima J, Maruyama M. Age-related guanine nucleotide exchange factor, mouse Zizimin2, induces filopodia in bone marrow-derived dendritic cells. IMMUNITY & AGEING 2012; 9:2. [PMID: 22494997 PMCID: PMC3359169 DOI: 10.1186/1742-4933-9-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 04/11/2012] [Indexed: 01/10/2023]
Abstract
Background We recently isolated and identified Zizimin2 as a functional factor that is highly expressed in murine splenic germinal center B cells after immunization with T-cell-dependent antigen. Zizimin2 was revealed to be a new family member of Dock (dedicator of cytokinesis), Dock11, which is the guanine nucleotide exchange factor for Cdc42, a low-molecular-weight GTPase. However, the molecular function of Zizimin2 in acquired immunity has not been elucidated. Results In this study, we show that the protein expression of Zizimin2, which is also restricted to lymphoid tissues and lymphocytes, is reduced in aged mice. Over-expression of full-length Zizimin2 induced filopodial formation in 293T cells, whereas expression of CZH2 domain inhibited it. Stimulation of Fcγ receptor and Toll-like receptor 4 triggered Zizimin2 up-regulation and Cdc42 activation in bone marrow-derived dendritic cells. Conclusions These data suggest that Zizimin2 is an immune-related and age-regulated guanine nucleotide exchange factor, which facilitates filopodial formation through activation of Cdc42, which results in activation of cell migration.
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Affiliation(s)
- Isamu Sakabe
- Department of Mechanism of Aging, Research Institute - National Center for Geriatrics and Gerontology, 35, Gengo, Morioka-Machi, Obu-city, Aichi 474-8511, Japan.
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14
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Talabot-Ayer D, Calo N, Vigne S, Lamacchia C, Gabay C, Palmer G. The mouse interleukin (Il)33 gene is expressed in a cell type- and stimulus-dependent manner from two alternative promoters. J Leukoc Biol 2011; 91:119-25. [PMID: 22013230 DOI: 10.1189/jlb.0811425] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
GenBank entries for mouse Il33 reveal the existence of two transcripts, Il33a and Il33b, with different 5'UTRs but coding for the same protein. We investigated expression of these transcripts in different mouse organs and cell types in basal and inflammatory conditions. Il33a and Il33b mRNAs start with different noncoding first exons, transcribed from different promoter regions, which both contain a consensus TATA-like sequence. Constitutive Il33a mRNA expression was detected in mouse stomach, lung, spleen, and brain, whereas basal Il33b mRNA expression was observed only in the stomach. Expression of both transcripts increased after systemic LPS administration. In vitro, we observed high constitutive expression of Il33 transcripts in MEFs. Constitutive Il33a mRNA expression was observed also in BMDCs, where it was preferentially increased in response to poly(I:C), whereas LPS increased levels of Il33a and Il33b mRNA. In contrast, BMMs and Raw 264.7 cells did not express Il33 mRNA constitutively, and LPS stimulation selectively induced expression of Il33b mRNA in these cells. Our data indicate that the Il33 gene is expressed from two alternative promoters in the mouse and that the relative expression of Il33a and Il33b transcripts is cell type- and stimulus-dependent.
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Affiliation(s)
- Dominique Talabot-Ayer
- Division of Rheumatology, University Hospital, and Department of Pathology and Immunology, University of Geneva School of Medicine, Geneva, Switzerland
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15
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Interleukin-1 receptor-mediated inflammation impairs the heat shock response of human mesothelial cells. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 178:1544-55. [PMID: 21435443 DOI: 10.1016/j.ajpath.2010.12.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Revised: 11/22/2010] [Accepted: 12/30/2010] [Indexed: 11/22/2022]
Abstract
Bioincompatibility of peritoneal dialysis fluids (PDF) limits their use in renal replacement therapy. PDF exposure harms mesothelial cells but induces heat shock proteins (HSP), which are essential for repair and cytoprotection. We searched for cellular pathways that impair the heat shock response in mesothelial cells after PDF-exposure. In a dose-response experiment, increasing PDF-exposure times resulted in rapidly increasing mesothelial cell damage but decreasing HSP expression, confirming impaired heat shock response. Using proteomics and bioinformatics, simultaneously activated apoptosis-related and inflammation-related pathways were identified as candidate mechanisms. Testing the role of sterile inflammation, addition of necrotic cell material to mesothelial cells increased, whereas addition of the interleukin-1 receptor (IL-1R) antagonist anakinra to PDF decreased release of inflammatory cytokines. Addition of anakinra during PDF exposure resulted in cytoprotection and increased chaperone expression. Thus, activation of the IL-1R plays a pivotal role in impairment of the heat shock response of mesothelial cells to PDF. Danger signals from injured cells lead to an elevated level of cytokine release associated with sterile inflammation, which reduces expression of HSP and other cytoprotective chaperones and exacerbates PDF damage. Blocking the IL-1R pathway might be useful in limiting damage during peritoneal dialysis.
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16
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Implication of p53-dependent cellular senescence related gene, TARSH in tumor suppression. Biochem Biophys Res Commun 2009; 380:807-12. [DOI: 10.1016/j.bbrc.2009.01.171] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Accepted: 01/25/2009] [Indexed: 11/21/2022]
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17
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Lipopolysaccharide Up-regulates IL-6Rα Expression in Cultured Leptomeningeal Cells via Activation of ERK1/2 Pathway. Neurochem Res 2008; 33:1901-10. [DOI: 10.1007/s11064-008-9667-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2008] [Accepted: 03/11/2008] [Indexed: 01/23/2023]
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18
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Interleukin-1 receptor antagonist (IL-1ra) modulates endothelial cell proliferation. FEBS Lett 2008; 582:886-90. [PMID: 18282478 DOI: 10.1016/j.febslet.2008.02.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Revised: 02/05/2008] [Accepted: 02/07/2008] [Indexed: 10/22/2022]
Abstract
Endothelial cell (EC) lifespan controlled by the IL-1 family of cytokines is an important determinant of susceptibility to artery wall disease. Here we show that EC lacking intracellular interleukin-1 receptor antagonist (IL-1ra) have a reduced lifespan compared to controls. Over expression of IL-1ra enhanced proliferation via cyclin dependent kinase 2 activity and retinoblastoma protein phosphorylation. This was not seen in EC lacking IL-1 receptor 1 (IL-1 signalling ability), nor apparent using other stimuli e.g. TNF alpha. These data suggest that IL-1ra has a specific and receptor-dependent function to control the growth and lifespan of EC.
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19
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Murata Y, Wakoh T, Uekawa N, Sugimoto M, Asai A, Miyazaki T, Maruyama M. Death-associated protein 3 regulates cellular senescence through oxidative stress response. FEBS Lett 2006; 580:6093-9. [PMID: 17056041 DOI: 10.1016/j.febslet.2006.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2006] [Revised: 09/18/2006] [Accepted: 10/05/2006] [Indexed: 01/16/2023]
Abstract
Death-associated protein 3 (DAP3) has been originally identified as a positive mediator of apoptosis. It has been revealed recently that the predominant localization of DAP3 to mitochondria implies its functional involvement in mitochondrial metabolism in addition to apoptosis. However, little is known about the molecular basis of these physiological functions of DAP3. Here, we demonstrate that DAP3 is reduced in both replicative and premature senescence induced by oxidative stress, and the DAP3 reduction induced by oxidative stress is observed mostly in a mitochondrial fraction. Using DAP3-specific short hairpin RNA (shRNA) in a clonogenic survival assay, we reveal that reduction of DAP3 induces resistance to oxidative stress and decreases intracellular reactive oxygen species (ROS) production. Furthermore, this strategy allows us to show that loss of DAP3 is involved in the avoidance of replicative senescence in mouse embryonic fibroblasts (MEFs). Thus, our study offers an insight into the potential regulatory function of mitochondrial DAP3 involved in cellular senescence.
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Affiliation(s)
- Yoko Murata
- Department of Mechanism of Aging, National Institute for Longevity Sciences, National Center for Geriatrics and Gerontology, 36-3 Gengo, Morioka-Cho, Obu-city, Aichi 474-8522, Japan
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20
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Mariotti M, Castiglioni S, Bernardini D, Maier JAM. Interleukin 1 alpha is a marker of endothelial cellular senescent. IMMUNITY & AGEING 2006; 3:4. [PMID: 16600025 PMCID: PMC1482715 DOI: 10.1186/1742-4933-3-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2005] [Accepted: 04/06/2006] [Indexed: 11/24/2022]
Abstract
Background The functional changes associated with endothelial senescence may be involved in human aging and age-related vascular disorders. Since the inflammatory cytokine interleukin (IL-)1 inhibits endothelial growth, we evaluated the expression of IL-1α, IL-1β and their antagonist, the IL-1 receptor antagonist (IL-1ra), in endothelial in vitro senescence and quiescence. We also examined the expression of IL-1α in human senescent and progeric fibroblasts. Results We found that the overexpression of IL-1α specifically characterizes endothelial senescence. No modulation of this cytokine was observed in endothelial quiescence and in senescent or progeric human fibroblasts. The expression of IL-1β and IL-1ra was also assessed and found not to be affected by senescence. Conclusion Our results indicate that a dysfunction of the cytokine network associates with aging and point to a specific role of IL-1α in endothelial senescence.
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Affiliation(s)
- Massimo Mariotti
- Department of Preclinical Sciences, University of Milan Medical School, Via GB Grassi, 74 Milan, Italy
| | - Sara Castiglioni
- Department of Preclinical Sciences, University of Milan Medical School, Via GB Grassi, 74 Milan, Italy
| | - Daniela Bernardini
- Department of Preclinical Sciences, University of Milan Medical School, Via GB Grassi, 74 Milan, Italy
| | - Jeanette AM Maier
- Department of Preclinical Sciences, University of Milan Medical School, Via GB Grassi, 74 Milan, Italy
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21
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Li Q, Engelhardt JF. Interleukin-1beta induction of NFkappaB is partially regulated by H2O2-mediated activation of NFkappaB-inducing kinase. J Biol Chem 2006; 281:1495-505. [PMID: 16286467 DOI: 10.1074/jbc.m511153200] [Citation(s) in RCA: 166] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Reactive oxygen species (ROS) have been demonstrated to act as second messengers in a number of signal transduction pathways, including NFkappaB. However, the mechanism(s) by which ROS regulate NFkappaB remain unclear and controversial. In the present report, we describe a mechanism whereby interleukin-1beta (IL-1beta) stimulation of NFkappaB is partially regulated by H2O2-mediated activation of NIK and subsequent NIK-mediated phosphorylation of IKKalpha. IL-1beta induced H2O2 production in MCF-7 cells and clearance of this ROS through the expression of GPx-1 reduced NFkappaB transcriptional activation by inhibiting NIK-mediated phosphorylation of IKKalpha. Although IKKalpha and IKKbeta were both involved in IL-1beta-mediated activation of NFkappaB, only the IKKalpha-dependent component was modulated by changes in H2O2 levels. Interestingly, in vitro reconstitution experiments demonstrated that NIK was activated by a very narrow range of H2O2 (1-10 microM), whereas higher concentrations (100 microM to 1 mM) inhibited NIK activity. Treatment of cells with the general Ser/Thr phosphatase inhibitor (okadaic acid) lead to activation of NFkappaB and enhanced NIK activity as a IKKalpha kinase, suggesting that ROS may directly regulate NIK through the inhibition of phosphatases. Recruitment of NIK to TRAF6 following IL-1beta stimulation was inhibited by H2O2 clearance and Rac1 siRNA, suggesting that Rac-dependent NADPH oxidase may be a source of ROS required for NIK activation. In summary, our studies have demonstrated that redox regulation of NIK by H2O2 is mechanistically important in IL-1beta induction of NFkappaB activation.
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Affiliation(s)
- Qiang Li
- Department of Anatomy & Cell Biology, College of Medicine, The University of Iowa, Iowa City, Iowa 52242, USA
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22
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Uekawa N, Terauchi K, Nishikimi A, Shimada JI, Maruyama M. Expression of TARSH gene in MEFs senescence and its potential implication in human lung cancer. Biochem Biophys Res Commun 2005; 329:1031-8. [PMID: 15752759 DOI: 10.1016/j.bbrc.2005.02.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2005] [Indexed: 11/29/2022]
Abstract
To reveal the molecular mechanism of cellular senescence, we have surveyed the genes that are specifically upregulated via MEFs senescence by suppression subtractive hybridization method. We show here that mTARSH was induced particularly in the relative early phase of MEFs cellular senescence. Further structural analysis of mTARSH disclosed five splicing variants shared a common reading frame whose diversity was derived from the SH3-binding motif cluster in the middle of the gene. We also show that mTARSH mRNA predominantly expressed in lung and that conspicuous expression of TARSH was drastically declined in all several lung cancer cell lines we tested. Thus, TARSH presumably represents a trigger gene for evoking cellular senescence, which has also been suggested to be involved in the prevention of tumorigenesis.
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Affiliation(s)
- Natsuko Uekawa
- Laboratory of Experimental Animal Model Research, National Institute for Longevity Sciences, National Center for Geriatrics and Gerontology, 36-3 Gengo, Morioka-Cho, Obu-city, Aichi 474-8522, Japan
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23
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Nishikimi A, Meller N, Uekawa N, Isobe KI, Schwartz MA, Maruyama M. Zizimin2: a novel, DOCK180-related Cdc42 guanine nucleotide exchange factor expressed predominantly in lymphocytes. FEBS Lett 2005; 579:1039-46. [PMID: 15710388 DOI: 10.1016/j.febslet.2005.01.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2004] [Revised: 12/28/2004] [Accepted: 01/04/2005] [Indexed: 01/31/2023]
Abstract
A novel superfamily of guanine nucleotide exchange factors for Rho GTPases includes DOCK180 and zizimin1. The zizimin subfamily includes three genes of which only zizimin1 has been cloned. We report here the cloning of zizimin2, identified in a screen for genes enriched in germinal center B cells. Zizimin2 and zizimin1 have similar primary structures and both proteins bound and activated Cdc42 but not the Cdc42-related proteins TC10 or TCL. Their tissue distributions are distinct, however, with zizimin2 expressed predominantly in lymphocytes and an opposite pattern for zizimin1. Zizimin3 was also analyzed and showed distinct GTPase specificity and tissue distribution.
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Affiliation(s)
- Akihiko Nishikimi
- Laboratory of Experimental Animal Model Research, National Institute for Longevity Sciences, National Center for Geriatrics and Gerontology, 36-3, Gengo, Morioka-Cho, Obu-city, Aichi 474-8522, Japan
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