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Wang W, Zhou K, Wang L, Qin Q, Liu H, Qin L, Yang M, Yuan L, Liu C. Aging in chronic lung disease: Will anti-aging therapy be the key to the cure? Eur J Pharmacol 2024; 980:176846. [PMID: 39067566 DOI: 10.1016/j.ejphar.2024.176846] [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: 11/27/2023] [Revised: 07/24/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Chronic lung disease is the third leading cause of death globally, imposing huge burden of death, disability and healthcare costs. However, traditional pharmacotherapy has relatively limited effects in improving the cure rate and reducing the mortality of chronic lung disease. Thus, new treatments are urgently needed for the prevention and treatment of chronic lung disease. It is particularly noteworthy that, multiple aging-related phenotypes were involved in the occurrence and development of chronic lung disease, such as blocked proliferation, telomere attrition, mitochondrial dysfunction, epigenetic alterations, altered nutrient perception, stem cell exhaustion, chronic inflammation, etc. Consequently, senescent cells induce a series of pathological changes in the lung, such as immune dysfunction, airway remodeling, oxidative stress and regenerative dysfunction, which is a critical issue that needs special attention in chronic lung diseases. Therefore, anti-aging interventions may bring new insights into the treatment of chronic lung diseases. In this review, we elaborate the involvement of aging in chronic lung disease and further discuss the application and prospects of anti-aging therapy.
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Affiliation(s)
- Weijie Wang
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China
| | - Kai Zhou
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China
| | - Leyuan Wang
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China
| | - Qiuyan Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China
| | - Huijun Liu
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China
| | - Ling Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle and Hunter Medical Research Institute, Callaghan, New South Wales, Australia
| | - Lin Yuan
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China.
| | - Chi Liu
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China; Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China; National Experimental Teaching Demonstration Center for Medical Function, China.
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2
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Neri F, Takajjart SN, Lerner CA, Desprez PY, Schilling B, Campisi J, Gerencser AA. A Fully-Automated Senescence Test (FAST) for the high-throughput quantification of senescence-associated markers. GeroScience 2024; 46:4185-4202. [PMID: 38869711 PMCID: PMC11336018 DOI: 10.1007/s11357-024-01167-3] [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: 12/22/2023] [Accepted: 03/15/2024] [Indexed: 06/14/2024] Open
Abstract
Cellular senescence is a major driver of aging and age-related diseases. Quantification of senescent cells remains challenging due to the lack of senescence-specific markers and generalist, unbiased methodology. Here, we describe the Fully-Automated Senescence Test (FAST), an image-based method for the high-throughput, single-cell assessment of senescence in cultured cells. FAST quantifies three of the most widely adopted senescence-associated markers for each cell imaged: senescence-associated β-galactosidase activity (SA-β-Gal) using X-Gal, proliferation arrest via lack of 5-ethynyl-2'-deoxyuridine (EdU) incorporation, and enlarged morphology via increased nuclear area. The presented workflow entails microplate image acquisition, image processing, data analysis, and graphing. Standardization was achieved by (i) quantifying colorimetric SA-β-Gal via optical density; (ii) implementing staining background controls; and (iii) automating image acquisition, image processing, and data analysis. In addition to the automated threshold-based scoring, a multivariate machine learning approach is provided. We show that FAST accurately quantifies senescence burden and is agnostic to cell type and microscope setup. Moreover, it effectively mitigates false-positive senescence marker staining, a common issue arising from culturing conditions. Using FAST, we compared X-Gal with fluorescent C12FDG live-cell SA-β-Gal staining on the single-cell level. We observed only a modest correlation between the two, indicating that those stains are not trivially interchangeable. Finally, we provide proof of concept that our method is suitable for screening compounds that modify senescence burden. This method will be broadly useful to the aging field by enabling rapid, unbiased, and user-friendly quantification of senescence burden in culture, as well as facilitating large-scale experiments that were previously impractical.
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Affiliation(s)
- Francesco Neri
- Buck Institute for Research on Aging, Novato, CA, USA
- USC Leonard Davis School of Gerontology, Los Angeles, CA, USA
| | | | - Chad A Lerner
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Pierre-Yves Desprez
- Buck Institute for Research on Aging, Novato, CA, USA
- California Pacific Medical Center, San Francisco, CA, USA
| | - Birgit Schilling
- Buck Institute for Research on Aging, Novato, CA, USA.
- USC Leonard Davis School of Gerontology, Los Angeles, CA, USA.
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA, USA
- USC Leonard Davis School of Gerontology, Los Angeles, CA, USA
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Ma L, Yu J, Fu Y, He X, Ge S, Jia R, Zhuang A, Yang Z, Fan X. The dual role of cellular senescence in human tumor progression and therapy. MedComm (Beijing) 2024; 5:e695. [PMID: 39161800 PMCID: PMC11331035 DOI: 10.1002/mco2.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/28/2024] [Accepted: 07/29/2024] [Indexed: 08/21/2024] Open
Abstract
Cellular senescence, one of the hallmarks of cancer, is characterized by cell cycle arrest and the loss of most normal cellular functions while acquiring a hypersecretory, proinflammatory phenotype. The function of senescent cells in cancer cells varies depending on the cellular conditions. Before the occurrence of cancer, senescent cells act as a barrier to prevent its development. But once cancer has occurred, senescent cells play a procancer role. However, few of the current studies have adequately explained the diversity of cellular senescence across cancers. Herein, we concluded the latest intrinsic mechanisms of cellular senescence in detail and emphasized the senescence-associated secretory phenotype as a key contributor to heterogeneity of senescent cells in tumor. We also discussed five kinds of inducers of cellular senescence and the advancement of senolytics in cancer, which are drugs that tend to clear senescent cells. Finally, we summarized the various effects of senescent cells in different cancers and manifested that their functions may be diametrically opposed under different circumstances. In short, this paper contributes to the understanding of the diversity of cellular senescence in cancers and provides novel insight for tumor therapy.
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Affiliation(s)
- Liang Ma
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Jie Yu
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Yidian Fu
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Xiaoyu He
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Shengfang Ge
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Renbing Jia
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Ai Zhuang
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Zhi Yang
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Xianqun Fan
- Department of OphthalmologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
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Yamamoto T, Isaka Y. Pathological mechanisms of kidney disease in ageing. Nat Rev Nephrol 2024; 20:603-615. [PMID: 39025993 DOI: 10.1038/s41581-024-00868-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2024] [Indexed: 07/20/2024]
Abstract
The kidney is a metabolically active organ that requires energy to drive processes such as tubular reabsorption and secretion, and shows a decline in function with advancing age. Various molecular mechanisms, including genomic instability, telomere attrition, inflammation, autophagy, mitochondrial function, and changes to the sirtuin and Klotho signalling pathways, are recognized regulators of individual lifespan and pivotal factors that govern kidney ageing. Thus, mechanisms that contribute to ageing not only dictate renal outcomes but also exert a substantial influence over life expectancy. Conversely, kidney dysfunction, in the context of chronic kidney disease (CKD), precipitates an expedited ageing trajectory in individuals, leading to premature ageing and a disconnect between biological and chronological age. As CKD advances, age-related manifestations such as frailty become increasingly conspicuous. Hence, the pursuit of healthy ageing necessitates not only the management of age-related complications but also a comprehensive understanding of the processes and markers that underlie systemic ageing. Here, we examine the hallmarks of ageing, focusing on the mechanisms by which they affect kidney health and contribute to premature organ ageing. We also review diagnostic methodologies and interventions for premature ageing, with special consideration given to the potential of emerging therapeutic avenues to target age-related kidney diseases.
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Affiliation(s)
- Takeshi Yamamoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan.
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Li X, Wang J, Zhang M, Li X, Fan Y, Zhou X, Sun Y, Qiu Z. Biological aging mediates the associations of metabolic score for insulin resistance with all-cause and cardiovascular disease mortality among US adults: A nationwide cohort study. Diabetes Obes Metab 2024; 26:3552-3564. [PMID: 38853301 DOI: 10.1111/dom.15694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/11/2024] [Accepted: 05/20/2024] [Indexed: 06/11/2024]
Abstract
AIM To investigate the associations of metabolic score for insulin resistance (METS-IR) with all-cause and cardiovascular disease (CVD)-specific mortality and the potential mediating role of biological ageing. METHODS A cohort of 19 204 participants from the National Health and Nutrition Examination Survey (NHANES) 1999-2018 was recruited for this study. Cox regression models, restricted cubic splines, and Kaplan-Meier survival curves were used to determine the relationships of METS-IR with all-cause and CVD-specific mortality. Mediation analyses were performed to explore the possible intermediary role of biological ageing markers, including phenotypic age (PhenoAge) and biological age (BioAge). RESULTS During a median follow-up of 9.17 years, we observed 2818 deaths, of which 875 were CVD-specific. Multivariable Cox regression showed that the highest METS-IR level (Q4) was associated with increased all-cause (hazard ratio [HR] 1.38, 95% confidence interval [CI] 1.14-1.67) and CVD mortality (HR 1.52, 95% CI 1.10-2.12) compared with the Q1 level. Restricted cubic splines showed a nonlinear relationship between METS-IR and all-cause mortality. Only METS-IR above the threshold (41.02 μg/L) was positively correlated with all-cause death. METS-IR had a linear positive relationship with CVD mortality. In mediation analyses, we found that PhenoAge mediated 51.32% (p < 0.001) and 41.77% (p < 0.001) of the association between METS-IR and all-cause and CVD-specific mortality, respectively. For BioAge, the mediating proportions of PhenoAge were 21.33% (p < 0.001) and 15.88% (p < 0.001), respectively. CONCLUSIONS This study highlights the detrimental effects of insulin resistance, as measured by METS-IR, on all-cause and CVD mortality. Moreover, it underscores the role of biological ageing in mediating these associations, emphasizing the need for interventions targeting both insulin resistance and ageing processes to mitigate mortality risks in metabolic disorders.
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Affiliation(s)
- Xiaoxuan Li
- Department of Oncology, Key Laboratory of Cancer Molecular and Translational Research, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jia Wang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Mengqi Zhang
- Department of Oncology, Key Laboratory of Cancer Molecular and Translational Research, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiangjun Li
- Breast Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuchen Fan
- Department of Medicine, Qingdao University, Qingdao, China
| | - Xinbei Zhou
- Department of Critical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuxin Sun
- Department of Oncology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenkang Qiu
- Interventional Medical Center, The Affiliated Hospital of Qingdao University, Qingdao, China
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6
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Das V, Miller JH, Alladi CG, Annadurai N, De Sanctis JB, Hrubá L, Hajdúch M. Antineoplastics for treating Alzheimer's disease and dementia: Evidence from preclinical and observational studies. Med Res Rev 2024; 44:2078-2111. [PMID: 38530106 DOI: 10.1002/med.22033] [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: 03/02/2023] [Revised: 02/15/2024] [Accepted: 03/04/2024] [Indexed: 03/27/2024]
Abstract
As the world population ages, there will be an increasing need for effective therapies for aging-associated neurodegenerative disorders, which remain untreatable. Dementia due to Alzheimer's disease (AD) is one of the leading neurological diseases in the aging population. Current therapeutic approaches to treat this disorder are solely symptomatic, making the need for new molecular entities acting on the causes of the disease extremely urgent. One of the potential solutions is to use compounds that are already in the market. The structures have known pharmacokinetics, pharmacodynamics, toxicity profiles, and patient data available in several countries. Several drugs have been used successfully to treat diseases different from their original purposes, such as autoimmunity and peripheral inflammation. Herein, we divulge the repurposing of drugs in the area of neurodegenerative diseases, focusing on the therapeutic potential of antineoplastics to treat dementia due to AD and dementia. We briefly touch upon the shared pathological mechanism between AD and cancer and drug repurposing strategies, with a focus on artificial intelligence. Next, we bring out the current status of research on the development of drugs, provide supporting evidence from retrospective, clinical, and preclinical studies on antineoplastic use, and bring in new areas, such as repurposing drugs for the prion-like spreading of pathologies in treating AD.
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Affiliation(s)
- Viswanath Das
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
- Czech Advanced Technologies and Research Institute (CATRIN), Institute of Molecular and Translational Medicine, Palacký University Olomouc, Olomouc, Czech Republic
| | - John H Miller
- School of Biological Sciences and Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand
| | - Charanraj Goud Alladi
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
| | - Narendran Annadurai
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
| | - Juan Bautista De Sanctis
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
- Czech Advanced Technologies and Research Institute (CATRIN), Institute of Molecular and Translational Medicine, Palacký University Olomouc, Olomouc, Czech Republic
| | - Lenka Hrubá
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
- Czech Advanced Technologies and Research Institute (CATRIN), Institute of Molecular and Translational Medicine, Palacký University Olomouc, Olomouc, Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
- Czech Advanced Technologies and Research Institute (CATRIN), Institute of Molecular and Translational Medicine, Palacký University Olomouc, Olomouc, Czech Republic
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Zhou H, Gizlenci M, Xiao Y, Martin F, Nakamori K, Zicari EM, Sato Y, Tullius SG. Obesity-associated Inflammation and Alloimmunity. Transplantation 2024:00007890-990000000-00856. [PMID: 39192462 DOI: 10.1097/tp.0000000000005183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Obesity is a worldwide health problem with a rapidly rising incidence. In organ transplantation, increasing numbers of patients with obesity accumulate on waiting lists and undergo surgery. Obesity is in general conceptualized as a chronic inflammatory disease, potentially impacting alloimmune response and graft function. Here, we summarize our current understanding of cellular and molecular mechanisms that control obesity-associated adipose tissue inflammation and provide insights into mechanisms affecting transplant outcomes, emphasizing on the beneficial effects of weight loss on alloimmune responses.
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Affiliation(s)
- Hao Zhou
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Merih Gizlenci
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of General, Visceral, Cancer and Transplant Surgery, University Hospital of Cologne, Cologne, Germany
| | - Yao Xiao
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Friederike Martin
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of Surgery, CVK/CCM, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Keita Nakamori
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Department of Urology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan
| | - Elizabeth M Zicari
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
- Faculté de Pharmacie, Université Paris Cité, Paris, France
| | - Yuko Sato
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Stefan G Tullius
- Division of Transplant Surgery and Transplant Surgery Research Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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8
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Dhokia V, Albati A, Smith H, Thomas G, Macip S. A second generation of senotherapies: the development of targeted senolytics, senoblockers and senoreversers for healthy ageing. Biochem Soc Trans 2024; 52:1661-1671. [PMID: 38940746 DOI: 10.1042/bst20231066] [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: 04/03/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 06/29/2024]
Abstract
Cellular senescence, a form of terminal cell cycle arrest, is as a key driver of organismal ageing and an important factor in age-related diseases. Insights into the senescent phenotype have led to the development of novel therapeutic strategies, collectively known as senotherapies, that aim to ameliorate the detrimental effects of senescent cell accumulation in tissues. The senotherapeutic field has rapidly evolved over the past decade, with clinical translation of the first drugs discovered currently underway. What began as the straightforward removal of senescent cells using repurposed compounds, which were given the name of senolytics, has grown into an expanding field that uses different state of the art approaches to achieve the goal of preventing the build-up of senescent cells in the body. Here, we summarize the emergence of a new generation of senotherapies, based on improving the efficacy and safety of the original senolytics by making them targeted, but also branching out into drugs that prevent senescence (senoblockers) or revert it (senoreversers).The use of nanotechnology, specific antibodies, cell-based approaches and restored immunosurveillance is likely to revolutionize the field of senotherapies in the near future, hopefully allowing it to realize its full clinical potential.
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Affiliation(s)
- Vinesh Dhokia
- Mechanisms of Cancer and Ageing Laboratory, Barcelona, Spain
- Department of Molecular and Cell Biology, University of Leicester, Leicester, U.K
| | - Amal Albati
- Mechanisms of Cancer and Ageing Laboratory, Barcelona, Spain
- Department of Molecular and Cell Biology, University of Leicester, Leicester, U.K
| | - Hannah Smith
- Mechanisms of Cancer and Ageing Laboratory, Barcelona, Spain
- Department of Molecular and Cell Biology, University of Leicester, Leicester, U.K
| | - Gethin Thomas
- The Ernest and Helen Scott Haematological Research Institute, University of Leicester, Leicester, U.K
| | - Salvador Macip
- Mechanisms of Cancer and Ageing Laboratory, Barcelona, Spain
- Department of Molecular and Cell Biology, University of Leicester, Leicester, U.K
- The Ernest and Helen Scott Haematological Research Institute, University of Leicester, Leicester, U.K
- Josep Carreras Leukaemia Research Institute (IJC), Badalona, Barcelona, Spain
- FoodLab, Faculty of Health Sciences, Universitat Oberta de Catalunya, Barcelona, Spain
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9
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Sirtori CR, Castiglione S, Pavanello C. METFORMIN: FROM DIABETES TO CANCER TO PROLONGATION OF LIFE. Pharmacol Res 2024; 208:107367. [PMID: 39191336 DOI: 10.1016/j.phrs.2024.107367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 08/12/2024] [Accepted: 08/21/2024] [Indexed: 08/29/2024]
Abstract
The metformin molecule dates back to over a century, but its clinical use started in the '50s. Since then, its use in diabetics has grown constantly, with over 150 million users today. The therapeutic profile also expanded, with improved understanding of novel mechanisms. Metformin has a major activity on insulin resistance, by acting on the insulin receptors and mitochondria, most likely by activation of the adenosine monophosphate-activated kinase. These and associated mechanisms lead to significant lipid lowering and body weight loss. An anti-cancer action has come up in recent years, with mechanisms partly dependent on the mitochondrial activity and also on phosphatidylinositol 3-kinase resistance occurring in some malignant tumors. The potential of metformin to raise life-length is the object of large ongoing studies and of several basic and clinical investigations. The present review article will attempt to investigate the basic mechanisms behind these diverse activities and the potential clinical benefits. Metformin may act on transcriptional activity by histone modification, DNA methylation and miRNAs. An activity on age-associated inflammation (inflammaging) may occur via activation of the nuclear factor erythroid 2 related factor and changes in gut microbiota. A senolytic activity, leading to reduction of cells with the senescent associated secretory phenotype, may be crucial in lifespan prolongation as well as in ancillary properties in age-associated diseases, such as Parkinson's disease. Telomere prolongation may be related to the activity on mitochondrial respiratory factor 1 and on peroxisome gamma proliferator coactivator 1-alpha. Very recent observations on the potential to act on the most severe neurological disorders, such as amyotrophic lateral sclerosis and frontotemporal dementia, have raised considerable hope.
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Affiliation(s)
- Cesare R Sirtori
- Center of Dyslipidemias, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy; Centro E. Grossi Paoletti, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
| | - Sofia Castiglione
- Center of Dyslipidemias, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy; Centro E. Grossi Paoletti, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Chiara Pavanello
- Center of Dyslipidemias, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy; Centro E. Grossi Paoletti, Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
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10
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Lei SY, Qu Y, Yang YQ, Liu JC, Zhang YF, Zhou SY, He QY, Jin H, Yang Y, Guo ZN. Cellular senescence: A novel therapeutic target for central nervous system diseases. Biomed Pharmacother 2024; 179:117311. [PMID: 39182322 DOI: 10.1016/j.biopha.2024.117311] [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: 05/27/2024] [Revised: 08/05/2024] [Accepted: 08/13/2024] [Indexed: 08/27/2024] Open
Abstract
The underlying mechanisms of diseases affecting the central nervous system (CNS) remain unclear, limiting the development of effective therapeutic strategies. Remarkably, cellular senescence, a biological phenomenon observed in cultured fibroblasts in vitro, is a crucial intrinsic mechanism that influences homeostasis of the brain microenvironment and contributes to the onset and progression of CNS diseases. Cellular senescence has been observed in disease models established in vitro and in vivo and in bodily fluids or tissue components from patients with CNS diseases. These findings highlight cellular senescence as a promising target for preventing and treating CNS diseases. Consequently, emerging novel therapies targeting senescent cells have exhibited promising therapeutic effects in preclinical and clinical studies on aging-related diseases. These innovative therapies can potentially delay brain cell loss and functional changes, improve the prognosis of CNS diseases, and provide alternative treatments for patients. In this study, we examined the relevant advancements in this field, particularly focusing on the targeting of senescent cells in the brain for the treatment of chronic neurodegenerative diseases (e.g., Alzheimer's disease, Parkinson's disease, and multiple sclerosis) and acute neurotraumatic insults (e.g., ischemic stroke, spinal cord injury, and traumatic brain injury).
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Affiliation(s)
- Shuang-Yin Lei
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Yang Qu
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Yu-Qian Yang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Jia-Cheng Liu
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Yi-Fei Zhang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Sheng-Yu Zhou
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Qian-Yan He
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China
| | - Hang Jin
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China.
| | - Yi Yang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China.
| | - Zhen-Ni Guo
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China; Neuroscience Research Center, Department of Neurology, the First Hospital of Jilin University, Changchun 130021, China.
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11
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Panchin AY, Ogmen A, Blagodatski AS, Egorova A, Batin M, Glinin T. Targeting multiple hallmarks of mammalian aging with combinations of interventions. Aging (Albany NY) 2024; 16:206078. [PMID: 39159129 DOI: 10.18632/aging.206078] [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: 11/01/2023] [Accepted: 06/28/2024] [Indexed: 08/21/2024]
Abstract
Aging is currently viewed as a result of multiple biological processes that manifest themselves independently, reinforce each other and in their totality lead to the aged phenotype. Genetic and pharmaceutical approaches targeting specific underlying causes of aging have been used to extend the lifespan and healthspan of model organisms ranging from yeast to mammals. However, most interventions display only a modest benefit. This outcome is to be expected if we consider that even if one aging process is successfully treated, other aging pathways may remain intact. Hence solving the problem of aging may require targeting not one but many of its underlying causes at once. Here we review the challenges and successes of combination therapies aimed at increasing the lifespan of mammals and propose novel directions for their development. We conclude that both additive and synergistic effects on mammalian lifespan can be achieved by combining interventions that target the same or different hallmarks of aging. However, the number of studies in which multiple hallmarks were targeted simultaneously is surprisingly limited. We argue that this approach is as promising as it is understudied.
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Affiliation(s)
- Alexander Y Panchin
- Sector of Molecular Evolution, Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow 127051, Russia
| | - Anna Ogmen
- Open Longevity, Sherman Oaks, CA 91403, USA
- Department of Molecular Biology and Genetics, Bogazici University, Istanbul 34342, Turkey
| | - Artem S Blagodatski
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino 142290, Russia
| | | | | | - Timofey Glinin
- Open Longevity, Sherman Oaks, CA 91403, USA
- Department of Surgery, Endocrine Neoplasia Laboratory, University of California, San Francisco, CA 94143, USA
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12
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Calubag MF, Robbins PD, Lamming DW. A nutrigeroscience approach: Dietary macronutrients and cellular senescence. Cell Metab 2024:S1550-4131(24)00327-9. [PMID: 39178854 DOI: 10.1016/j.cmet.2024.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 07/09/2024] [Accepted: 07/31/2024] [Indexed: 08/26/2024]
Abstract
Cellular senescence, a process in which a cell exits the cell cycle in response to stressors, is one of the hallmarks of aging. Senescence and the senescence-associated secretory phenotype (SASP)-a heterogeneous set of secreted factors that disrupt tissue homeostasis and promote the accumulation of senescent cells-reprogram metabolism and can lead to metabolic dysfunction. Dietary interventions have long been studied as methods to combat age-associated metabolic dysfunction, promote health, and increase lifespan. A growing body of literature suggests that senescence is responsive to diet, both to calories and specific dietary macronutrients, and that the metabolic benefits of dietary interventions may arise in part through reducing senescence. Here, we review what is currently known about dietary macronutrients' effect on senescence and the SASP, the nutrient-responsive molecular mechanisms that may mediate these effects, and the potential for these findings to inform the development of a nutrigeroscience approach to healthy aging.
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Affiliation(s)
- Mariah F Calubag
- Department of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA; Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Paul D Robbins
- Institute On the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN 55455, USA
| | - Dudley W Lamming
- Department of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA; Graduate Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, WI 53705, USA.
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13
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Shao X, Xu H, Kim H, Ljaz S, Beier F, Jankowski V, Lellig M, Vankann L, Werner JN, Chen L, Ziegler S, Kuppe C, Zenke M, Schneider RK, Hayat S, Saritas T, Kramann R. Generation of a conditional cellular senescence model using proximal tubule cells and fibroblasts from human kidneys. Cell Death Discov 2024; 10:364. [PMID: 39143064 PMCID: PMC11324798 DOI: 10.1038/s41420-024-02131-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 07/26/2024] [Accepted: 08/01/2024] [Indexed: 08/16/2024] Open
Abstract
Emerging evidence highlights cellular senescence's pivotal role in chronic kidney disease (CKD). Proximal tubule epithelial cells (PTECs) and fibroblasts are major players in CKD and serve as cellular sources of senescence. The generation of a conditionally immortalized human kidney cell model would allow to better understand the specific mechanisms and factors associated with cellular senescence in a controlled setting, devoid of potential confounding factors such as age and comorbidities. In addition, the availability of human kidney cell lines for preclinical research is sparse and most cell lines do not reflect their in vivo counterparts due to their altered behavior as immortalized cancer-like cells. In this study, PTECs and fibroblasts from human kidneys were isolated and transduced with doxycycline-inducible simian virus 40 large T antigen (SV40LT) vector. By comparing their gene expression with single-cell RNA sequencing data from human kidneys, the newly produced human kidney cell lines demonstrated significant resemblances to their in vivo counterparts. As predicted, PTECs showed functional activity and fibroblasts responded to injury with fibrosis. Withdrawal of the immortalizing factor doxycycline led to p21+ cell-cycle arrest and the key hallmarks of senescence. The obtained senescence gene set largely overlapped between both cell lines and with the previously published SenMayo set of senescence-associated genes. Furthermore, crosstalk experiments showed that senescent PTECs can cause a profibrotic response in fibroblasts by paracrine actions. In 76 human kidney sections, the number of p21+ cells correlated with the degree of fibrosis, age and reduced glomerular filtration, validating the role of senescence in CKD. In conclusion, we provide a novel cellular ex vivo model to study kidney senescence which can serve as a platform for large scale compounds testing.
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Affiliation(s)
- Xiaohang Shao
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Huaming Xu
- Department of Cell Biology, Institute of Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
- Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Hyojin Kim
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Sadaf Ljaz
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Fabian Beier
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Vera Jankowski
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Michaela Lellig
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Lucia Vankann
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Jan Niklas Werner
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Lu Chen
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Susanne Ziegler
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Christoph Kuppe
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Martin Zenke
- Department of Cell Biology, Institute of Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany
- Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Rebekka K Schneider
- Institute of Cell and Tumorbiology, RWTH Aachen University, Medical Faculty, Aachen, Germany
- Oncode Institute, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Sikander Hayat
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Turgay Saritas
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany.
- Department of Internal Medicine, Nephrology, and Transplantation, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - Rafael Kramann
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany.
- Department of Internal Medicine, Nephrology, and Transplantation, Erasmus Medical Center, Rotterdam, The Netherlands.
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14
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Wang T, Zhou D, Hong Z. Adipose tissue in older individuals: a contributing factor to sarcopenia. Metabolism 2024:155998. [PMID: 39128607 DOI: 10.1016/j.metabol.2024.155998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/13/2024]
Abstract
Sarcopenia is a geriatric syndrome characterized by a functional decline in muscle. The prevalence of sarcopenia increases with natural aging, becoming a serious health problem among elderly individuals. Therefore, understanding the pathology of sarcopenia is critical for inhibiting age-related alterations and promoting health and longevity in elderly individuals. The development of sarcopenia may be influenced by interactions between visceral and subcutaneous adipose tissue and skeletal muscle, particularly under conditions of chronic low-grade inflammation and metabolic dysfunction. This hypothesis is supported by the following observations: (i) accumulation of senescent cells in both adipose tissue and skeletal muscle with age; (ii) gut dysbiosis, characterized by an imbalance in gut microbial communities as the main trigger for inflammation, sarcopenia, and aged adipose tissue; and (iii) microbial dysbiosis, which could impact the onset or progression of a senescent state. Moreover, adipose tissue acts as an endocrine organ, releasing molecules that participate in intricate communication networks between organs. Our discussion focuses on novel adipokines and their role in regulating adipose tissue and muscle, particularly those influenced by aging and obesity, emphasizing their contributions to disease development. On the basis of these findings, we propose that age-related adipose tissue and sarcopenia are disorders characterized by chronic inflammation and metabolic dysregulation. Finally, we explore new potential therapeutic strategies involving specialized proresolving mediator (SPM) G protein-coupled receptor (GPCR) agonists, non-SPM GPCR agonists, transient receptor potential (TRP) channels, antidiabetic drugs in conjunction with probiotics and prebiotics, and compounds designed to target senescent cells and mitigate their pro-inflammatory activity.
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Affiliation(s)
- Tiantian Wang
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China.
| | - Dong Zhou
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China
| | - Zhen Hong
- Department of Neurology, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan, China.
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15
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Zhu J, Ao X, Liu Y, Zhou S, Hou Y, Yan Z, Zhou L, Chen H, Wang P, Liang X, Xie D, Gao S, Zhou PK, Gu Y. TNKS1BP1 mediates AECII senescence and radiation induced lung injury through suppressing EEF2 degradation. Respir Res 2024; 25:299. [PMID: 39113018 PMCID: PMC11308570 DOI: 10.1186/s12931-024-02914-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 07/10/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Although recent studies provide mechanistic understanding to the pathogenesis of radiation induced lung injury (RILI), rare therapeutics show definitive promise for treating this disease. Type II alveolar epithelial cells (AECII) injury in various manner results in an inflammation response to initiate RILI. RESULTS Here, we reported that radiation (IR) up-regulated the TNKS1BP1, causing progressive accumulation of the cellular senescence by up-regulating EEF2 in AECII and lung tissue of RILI mice. Senescent AECII induced Senescence-Associated Secretory Phenotype (SASP), consequently activating fibroblasts and macrophages to promote RILI development. In response to IR, elevated TNKS1BP1 interacted with and decreased CNOT4 to suppress EEF2 degradation. Ectopic expression of EEF2 accelerated AECII senescence. Using a model system of TNKS1BP1 knockout (KO) mice, we demonstrated that TNKS1BP1 KO prevents IR-induced lung tissue senescence and RILI. CONCLUSIONS Notably, this study suggested that a regulatory mechanism of the TNKS1BP1/CNOT4/EEF2 axis in AECII senescence may be a potential strategy for RILI.
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Affiliation(s)
- Jiaojiao Zhu
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Xingkun Ao
- Hengyang Medical College, University of South China, Hengyang, 421001, China
| | - Yuhao Liu
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Shenghui Zhou
- Hengyang Medical College, University of South China, Hengyang, 421001, China
| | - Yifan Hou
- College of Life Sciences, Hebei University, Baoding, 071001, China
| | - Ziyan Yan
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Lin Zhou
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Huixi Chen
- Hengyang Medical College, University of South China, Hengyang, 421001, China
| | - Ping Wang
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Xinxin Liang
- Hengyang Medical College, University of South China, Hengyang, 421001, China
| | - Dafei Xie
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Shanshan Gao
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Ping-Kun Zhou
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China.
| | - Yongqing Gu
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China.
- Hengyang Medical College, University of South China, Hengyang, 421001, China.
- College of Life Sciences, Hebei University, Baoding, 071001, China.
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16
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Wang B, Wang L, Gasek NS, Kuo CL, Nie J, Kim T, Yan P, Zhu J, Torrance BL, Zhou Y, Flores LC, Allen C, Andrade AM, Guo C, Cohn RL, Jellison ER, Bartley JM, Kuchel GA, Li S, Pirtskhalava T, Tchkonia T, Yadav S, Haynes L, Kirkland JL, Ikeno Y, Xu M. Intermittent clearance of p21-highly-expressing cells extends lifespan and confers sustained benefits to health and physical function. Cell Metab 2024; 36:1795-1805.e6. [PMID: 39111286 PMCID: PMC11315361 DOI: 10.1016/j.cmet.2024.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/18/2024] [Accepted: 07/08/2024] [Indexed: 08/11/2024]
Abstract
A key challenge in aging research is extending lifespan in tandem with slowing down functional decline so that life with good health (healthspan) can be extended. Here, we show that monthly clearance, starting from 20 months, of a small number of cells that highly express p21Cip1 (p21high) improves cardiac and metabolic function and extends both median and maximum lifespans in mice. Importantly, by assessing the health and physical function of these mice monthly until death, we show that clearance of p21high cells improves physical function at all remaining stages of life, suggesting healthspan extension. Mechanistically, p21high cells encompass several cell types with a relatively conserved proinflammatory signature. Clearance of p21high cells reduces inflammation and alleviates age-related transcriptomic signatures of various tissues. These findings demonstrate the feasibility of healthspan extension in mice and indicate p21high cells as a therapeutic target for healthy aging.
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Affiliation(s)
- Binsheng Wang
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Lichao Wang
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Nathan S Gasek
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Chia-Ling Kuo
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Public Health Sciences, UConn Health, Farmington, CT 06030, USA
| | - Jia Nie
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Taewan Kim
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Pengyi Yan
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Junyu Zhu
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Blake L Torrance
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - Yueying Zhou
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Xiangya Stomatological Hospital, Central South University, Changsha, China
| | - Lisa C Flores
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Colton Allen
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | | | - Chun Guo
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA
| | - Rachel L Cohn
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA
| | - Evan R Jellison
- Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - Jenna M Bartley
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - George A Kuchel
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA
| | - Sheng Li
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA
| | - Tamar Pirtskhalava
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Center for Advanced Gerotherapeutics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Tamar Tchkonia
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Center for Advanced Gerotherapeutics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Sumit Yadav
- Department of Growth and Development, UNMC College of Dentistry, Omaha, NE 68114, USA; Children's of Omaha - Children's Hospital, Omaha, NE 68114, USA
| | - Laura Haynes
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Immunology, UConn Health, Farmington, CT 06030, USA
| | - James L Kirkland
- Division of Endocrinology, Diabetes and Metabolism, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Center for Advanced Gerotherapeutics, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Division of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Yuji Ikeno
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA; Geriatric Research Education and Clinical Center (GRECC), Audie L. Murphy VA Hospital, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
| | - Ming Xu
- UConn Center on Aging, UConn Health, Farmington, CT 06030, USA; Department of Genetics and Genome Sciences, UConn Health, Farmington, CT 06030, USA.
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17
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Bi W, Yang M, Shi M, Hou M, Jiang C, Fan G, Guo W. A comprehensive single-cell RNA transcriptomic analysis identifies a unique SPP1+ macrophages subgroup in aging skeletal muscle. Sci Rep 2024; 14:18156. [PMID: 39103421 PMCID: PMC11300837 DOI: 10.1038/s41598-024-69284-9] [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: 02/29/2024] [Accepted: 08/02/2024] [Indexed: 08/07/2024] Open
Abstract
Senescence of skeletal muscle (SkM) has been a primary contributor to senior weakness and disability in recent years. The gradually declining SkM function associated with senescence has recently been connected to an imbalance between damage and repair. Macrophages (Mac) are involved in SkM aging, and different macrophage subgroups hold different biological functions. Through comprehensive single-cell transcriptomic analysis, we first compared the metabolic pathways and biological functions of different types of cells in young (Y) and old (O) mice SkM. Strikingly, the Mac population in mice SkM was also explored, and we identified a unique Mac subgroup in O SkM characterized by highly expressed SPP1 with strong senescence and adipogenesis features. Further work was carried out on the metabolic and biological processes for these Mac subgroups. Besides, we verified that the proportion of the SPP1+ Mac was increased significantly in the quadriceps tissues of O mice, and the senotherapeutic drug combination dasatinib + quercetin (D + Q) could dramatically reduce its proportion. Our study provides novel insight into the potential role of SPP1+ Mac in SkM, which may serve as a senotherapeutic target in SkM aging.
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Affiliation(s)
- Wen Bi
- Department of Sports Medicine, The Sixth Affiliated Hospital of Shenzhen University, Shenzhen Nanshan People's Hospital, Shenzhen, 518052, China
| | - Mengyue Yang
- Department of Cardiology, The Sixth Affiliated Hospital of Shenzhen University, Shenzhen Nanshan People's Hospital, Shenzhen, 518052, China
| | - Mengjia Shi
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Mirong Hou
- Cancer Institute of Traditional Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200030, China
| | - Changqing Jiang
- Department of Sports Medicine, The Sixth Affiliated Hospital of Shenzhen University, Shenzhen Nanshan People's Hospital, Shenzhen, 518052, China
| | - Gang Fan
- Department of Urology, The Sixth Affiliated Hospital of Shenzhen University, Shenzhen Nanshan People's Hospital, Shenzhen, 518052, China.
| | - Weiming Guo
- Department of Sports Medicine, The Sixth Affiliated Hospital of Shenzhen University, Shenzhen Nanshan People's Hospital, Shenzhen, 518052, China.
- Department of Orthopaedics, Affiliated Hospital of Guilin Medical College, Guilin, 518052, China.
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18
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Zou F, Luo Y, Zhuang W, Xu T. A Fully Integrated Conformal Wearable Ultrasound Patch for Continuous Sonodynamic Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2409528. [PMID: 39104292 DOI: 10.1002/adma.202409528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/27/2024] [Indexed: 08/07/2024]
Abstract
Cancer treatment is a continuous process, that the current therapy cannot meet the requirement well, including radiotherapy and chemotherapy. Wearable ultrasound device has the potential for continuous sonodynamic therapy due to its portability. However, the miniaturization of ultrasonic probe, system integration of device, and the strategy of continuous treatment are still urgent issues to be addressed. Herein, a portable wearable antitumor system is introduced, which utilizes a custom-developed multiplexed ultrasonic patch array (CWUS Patch) to accurately focus ultrasound on the lesion site and controllably stimulate sonosensitizer to produce a large amount of toxic reactive oxygen species (ROS). The system enables dynamic control of the ultrasound patches and allows real-time adjustments to optimize their performance in various applications, providing greater flexibility and precision in healthcare technology. Furthermore, the excellent penetration property of ultrasound into tumor tissues that induce synchronous apoptosis of tumor cells from the inside out is verified through a mouse model of breast cancer. This fully integrated conformal wearable ultrasound system provides a promising approach to noninvasively, continuously, and efficiently treat deep tumors.
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Affiliation(s)
- Faxing Zou
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China
| | - Yong Luo
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China
| | - Wenxuan Zhuang
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China
| | - Tailin Xu
- The Institute for Advanced Study (IAS), Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China
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19
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Guo P, Gao X, Nelson AL, Huard M, Lu A, Hambright WS, Huard J. TIPE2 gene transfer ameliorates aging-associated osteoarthritis in a progeria mouse model by reducing inflammation and cellular senescence. Mol Ther 2024:S1525-0016(24)00481-7. [PMID: 39095992 DOI: 10.1016/j.ymthe.2024.07.027] [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: 01/12/2024] [Revised: 07/13/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024] Open
Abstract
Osteoarthritis (OA) pain is often associated with the expression of tumor necrosis factor alpha (TNF-α), suggesting that TNF-α is one of the main contributing factors that cause inflammation, pain, and OA pathology. Thus, inhibition of TNF-α could potentially improve OA symptoms and slow disease progression. Anti-TNF-α treatments with antibodies, however, require multiple treatments and cannot entirely block TNF-α. TNF-α-induced protein 8-like 2 (TIPE2) was found to regulate the immune system's homeostasis and inflammation through different mechanisms from anti-TNF-α therapies. With a single treatment of adeno-associated virus (AAV)-TIPE2 gene delivery in the accelerated aging Zmpste24-/- (Z24-/-) mouse model, we found differences in Safranin O staining intensity within the articular cartilage (AC) region of the knee between TIPE2-treated mice and control mice. The glycosaminoglycan content (orange-red) was degraded in the Z24-/- cartilage while shown to be restored in the TIPE2-treated Z24-/- cartilage. We also observed that chondrocytes in Z24-/- mice exhibited a variety of senescent-associated phenotypes. Treatment with TIPE2 decreased TNF-α-positive cells, β-galactosidase (β-gal) activity, and p16 expression seen in Z24-/- mice. Our study demonstrated that AAV-TIPE2 gene delivery effectively blocked TNF-α-induced inflammation and senescence, resulting in the prevention or delay of knee OA in our accelerated aging Z24-/- mouse model.
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Affiliation(s)
- Ping Guo
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA.
| | - Xueqin Gao
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA
| | - Anna-Laura Nelson
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA
| | - Matthieu Huard
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA
| | - Aiping Lu
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA
| | - William Sealy Hambright
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA
| | - Johnny Huard
- Center for Regenerative & Personalized Medicine, Steadman Philippon Research Institute, Vail, CO 81657, USA.
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20
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Wölfel EM, Fernandez-Guerra P, Nørgård MØ, Jeromdesella S, Kjær PK, Elkjær AS, Kassem M, Figeac F. Senescence of skeletal stem cells and their contribution to age-related bone loss. Mech Ageing Dev 2024; 221:111976. [PMID: 39111640 DOI: 10.1016/j.mad.2024.111976] [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: 05/31/2024] [Revised: 07/30/2024] [Accepted: 08/03/2024] [Indexed: 08/18/2024]
Abstract
Human aging is linked to bone loss, resulting in bone fragility and an increased risk of fractures. This is primarily due to an age-related decline in the function of bone-forming osteoblastic cells and accelerated cellular senescence within the bone microenvironment. Here, we provide a detailed discussion of the hypothesis that age-related defective bone formation is caused by senescence of skeletal stem cells, as they are the main source of bone forming osteoblastic cells and influence the composition of bone microenvironment. Furthermore, this review discusses potential strategies to target cellular senescence as an emerging approach to treat age-related bone loss.
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Affiliation(s)
- Eva M Wölfel
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
| | - Paula Fernandez-Guerra
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
| | - Mikkel Ørnfeldt Nørgård
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
| | - Shakespeare Jeromdesella
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
| | - Pernille Kirkegaard Kjær
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
| | - Anna Sofie Elkjær
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
| | - Moustapha Kassem
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark; Institute of Cellular and Molecular Medicine (ICMM), Panum Institute, University of Copenhagen, 3B Blegdamsvej, Copenhagen N 2200, Denmark.
| | - Florence Figeac
- Molecular Endocrinology Unit, KMEB, Department of Endocrinology, Odense University Hospital, Winsløws Vej 4, Odense C 5000, Denmark.
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21
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Ahmad A, Braden A, Khan S, Xiao J, Khan MM. Crosstalk between the DNA damage response and cellular senescence drives aging and age-related diseases. Semin Immunopathol 2024; 46:10. [PMID: 39095660 DOI: 10.1007/s00281-024-01016-7] [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: 03/13/2024] [Accepted: 05/21/2024] [Indexed: 08/04/2024]
Abstract
Cellular senescence is a crucial process of irreversible cell-cycle arrest, in which cells remain alive, but permanently unable to proliferate in response to distinct types of stressors. Accumulating evidence suggests that DNA damage builds over time and triggers DNA damage response signaling, leading to cellular senescence. Cellular senescence serves as a platform for the perpetuation of inflammatory responses and is central to numerous age-related diseases. Defects in DNA repair genes or senescence can cause premature aging disease. Therapeutic approaches limiting DNA damage or senescence contribute to a rescued phenotype of longevity and neuroprotection, thus suggesting a mechanistic interaction between DNA damage and senescence. Here, we offer a unique perspective on the crosstalk between the DNA damage response pathway and senescence as well as their contribution to age-related diseases. We further summarize recent progress on the mechanisms and therapeutics of senescence, address existing challenges, and offering new insights and future directions in the senescence field.
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Affiliation(s)
- Ajmal Ahmad
- Department of Ophthalmology, College of Medicine, King Saud University Riyadh, Riyadh, Saudi Arabia
| | - Anneliesse Braden
- Department of Neurology, College of Medicine, University of Tennessee Health Science Center, 855 Monroe Avenue, Suite 415 Link Building, Memphis, TN, 38163, USA
- Neuroscience Institute, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Sazzad Khan
- Department of Neurology, College of Medicine, University of Tennessee Health Science Center, 855 Monroe Avenue, Suite 415 Link Building, Memphis, TN, 38163, USA
| | - Jianfeng Xiao
- Department of Neurology, College of Medicine, University of Tennessee Health Science Center, 855 Monroe Avenue, Suite 415 Link Building, Memphis, TN, 38163, USA
| | - Mohammad Moshahid Khan
- Department of Neurology, College of Medicine, University of Tennessee Health Science Center, 855 Monroe Avenue, Suite 415 Link Building, Memphis, TN, 38163, USA.
- Neuroscience Institute, University of Tennessee Health Science Center, Memphis, TN, USA.
- Center for Muscle, Metabolism and Neuropathology, Division of Regenerative and Rehabilitation Sciences, Department of Physical Therapy, College of Health Professions, University of Tennessee Health Science Center, Memphis, TN, USA.
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22
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Terao R, Sohn BS, Yamamoto T, Lee TJ, Colasanti J, Pfeifer CW, Lin JB, Santeford A, Yamaguchi S, Yoshida M, Apte RS. Cholesterol Accumulation Promotes Photoreceptor Senescence and Retinal Degeneration. Invest Ophthalmol Vis Sci 2024; 65:29. [PMID: 39167399 PMCID: PMC11343002 DOI: 10.1167/iovs.65.10.29] [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: 04/28/2024] [Accepted: 08/01/2024] [Indexed: 08/23/2024] Open
Abstract
Purpose Dysregulated cholesterol metabolism is critical in the pathogenesis of AMD. Cellular senescence contributes to the development of numerous age-associated diseases. In this study, we investigated the link between cholesterol burden and the cellular senescence of photoreceptors. Methods Retinas from rod-specific ATP binding cassette subfamily A member 1 (Abca1) and G member 1 (Abcg1) (Abca1/g1-rod/-rod) knockout mice fed with a high-fat diet were analyzed for the signs of cellular senescence. Real-time quantitative PCR and immunofluorescence were used to characterize the senescence profile of the retina and cholesterol-treated photoreceptor cell line (661W). Inducible elimination of p16(Ink4a)-positive senescent cells (INK-ATTAC) mice or the administration of senolytic drugs (dasatinib and quercetin: D&Q) were used to examine the impact of senolytics on AMD-like phenotypes in Abca1/g1-rod/-rod retina. Results Increased accumulation of senescent cells as measured by markers of cellular senescence was found in Abca1/g1-rod/-rod retina. Exogenous cholesterol also induced cellular senescence in 661W cells. Selective elimination of senescent cells in Abca1/g1-rod/-rod;INK-ATTAC mice or by administration of D&Q improved visual function, lipid accumulation in retinal pigment epithelium, and Bruch's membrane thickening. Conclusions Cholesterol accumulation promotes cellular senescence in photoreceptors. Eliminating senescent photoreceptors improves visual function in a model of retinal neurodegeneration, and senotherapy offers a novel therapeutic avenue for further investigation.
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Affiliation(s)
- Ryo Terao
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
- Department of Ophthalmology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Brian S. Sohn
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Taku Yamamoto
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Tae Jun Lee
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Jason Colasanti
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Charles W. Pfeifer
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Joseph B. Lin
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Andrea Santeford
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Shinobu Yamaguchi
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Mitsukuni Yoshida
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Rajendra S. Apte
- John F. Hardesty, MD, Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States
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23
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Cochemé HM, Gil J. mTOR links nutrients, inflammaging and lifespan. NATURE AGING 2024; 4:1034-1035. [PMID: 39060537 DOI: 10.1038/s43587-024-00681-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Affiliation(s)
- Helena M Cochemé
- MRC Laboratory of Medical Sciences (LMS), London, UK
- Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London, UK
| | - Jesús Gil
- MRC Laboratory of Medical Sciences (LMS), London, UK.
- Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London, UK.
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24
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Foti R, Storti G, Palmesano M, Scioli MG, Fiorelli E, Terriaca S, Cervelli G, Kim BS, Orlandi A, Cervelli V. Senescence in Adipose-Derived Stem Cells: Biological Mechanisms and Therapeutic Challenges. Int J Mol Sci 2024; 25:8390. [PMID: 39125960 PMCID: PMC11312747 DOI: 10.3390/ijms25158390] [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: 06/29/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
Adipose tissue-derived stem cells (ADSCs) represent a subset of the mesenchymal stem cells in every adipose compartment throughout the body. ADSCs can differentiate into various cell types, including chondrocytes, osteocytes, myocytes, and adipocytes. Moreover, they exhibit a notable potential to differentiate in vitro into cells from other germinal lineages, including endothelial cells and neurons. ADSCs have a wide range of clinical applications, from breast surgery to chronic wounds. Furthermore, they are a promising cell population for future tissue-engineering uses. Accumulating evidence indicates a decreased proliferation and differentiation potential of ADSCs with an increasing age, increasing body mass index, diabetes mellitus, metabolic syndrome, or exposure to radiotherapy. Therefore, the recent literature thoroughly investigates this cell population's senescence mechanisms and how they can hinder its possible therapeutic applications. This review will discuss the biological mechanisms and the physio-pathological causes behind ADSC senescence and how they can impact cellular functionality. Moreover, we will examine the possible strategies to invert these processes, re-establishing the full regenerative potential of this progenitor population.
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Affiliation(s)
- Riccardo Foti
- Plastic Surgery, Department of Surgical Sciences, University of Rome “Tor Vergata”, 00133 Rome, Italy; (R.F.); (M.P.); (V.C.)
| | - Gabriele Storti
- Plastic Surgery, Department of Surgical Sciences, University of Rome “Tor Vergata”, 00133 Rome, Italy; (R.F.); (M.P.); (V.C.)
| | - Marco Palmesano
- Plastic Surgery, Department of Surgical Sciences, University of Rome “Tor Vergata”, 00133 Rome, Italy; (R.F.); (M.P.); (V.C.)
| | - Maria Giovanna Scioli
- Anatomy Pathology Institute, Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.G.S.); (E.F.); (S.T.); (A.O.)
| | - Elena Fiorelli
- Anatomy Pathology Institute, Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.G.S.); (E.F.); (S.T.); (A.O.)
| | - Sonia Terriaca
- Anatomy Pathology Institute, Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.G.S.); (E.F.); (S.T.); (A.O.)
| | - Giulio Cervelli
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy;
| | - Bong Sung Kim
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, 8006 Zurich, Switzerland;
| | - Augusto Orlandi
- Anatomy Pathology Institute, Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.G.S.); (E.F.); (S.T.); (A.O.)
| | - Valerio Cervelli
- Plastic Surgery, Department of Surgical Sciences, University of Rome “Tor Vergata”, 00133 Rome, Italy; (R.F.); (M.P.); (V.C.)
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25
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Kim Y, Jang Y, Kim MS, Kang C. Metabolic remodeling in cancer and senescence and its therapeutic implications. Trends Endocrinol Metab 2024; 35:732-744. [PMID: 38453603 DOI: 10.1016/j.tem.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 03/09/2024]
Abstract
Cellular metabolism is a flexible and plastic network that often dictates physiological and pathological states of the cell, including differentiation, cancer, and aging. Recent advances in cancer metabolism represent a tremendous opportunity to treat cancer by targeting its altered metabolism. Interestingly, despite their stable growth arrest, senescent cells - a critical component of the aging process - undergo metabolic changes similar to cancer metabolism. A deeper understanding of the similarities and differences between these disparate pathological conditions will help identify which metabolic reprogramming is most relevant to the therapeutic liabilities of senescence. Here, we compare and contrast cancer and senescence metabolism and discuss how metabolic therapies can be established as a new modality of senotherapy for healthy aging.
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Affiliation(s)
- Yeonju Kim
- School of Biological Sciences, Seoul National University, Seoul 08826, South Korea; Center for Systems Geroscience, Seoul National University, Seoul 08826, South Korea
| | - Yeji Jang
- School of Biological Sciences, Seoul National University, Seoul 08826, South Korea; Center for Systems Geroscience, Seoul National University, Seoul 08826, South Korea
| | - Mi-Sung Kim
- School of Biological Sciences, Seoul National University, Seoul 08826, South Korea; Center for Systems Geroscience, Seoul National University, Seoul 08826, South Korea
| | - Chanhee Kang
- School of Biological Sciences, Seoul National University, Seoul 08826, South Korea; Center for Systems Geroscience, Seoul National University, Seoul 08826, South Korea.
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26
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Quarato ER, Salama NA, Calvi LM. Interplay Between Skeletal and Hematopoietic Cells in the Bone Marrow Microenvironment in Homeostasis and Aging. Curr Osteoporos Rep 2024; 22:416-432. [PMID: 38782850 DOI: 10.1007/s11914-024-00874-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/05/2024] [Indexed: 05/25/2024]
Abstract
PURPOSE OF THE REVIEW In this review, we discuss the most recent scientific advances on the reciprocal regulatory interactions between the skeletal and hematopoietic stem cell niche, focusing on immunomodulation and its interplay with the cell's mitochondrial function, and how this impacts osteoimmune health during aging and disease. RECENT FINDINGS Osteoimmunology investigates interactions between cells that make up the skeletal stem cell niche and immune system. Much work has investigated the complexity of the bone marrow microenvironment with respect to the skeletal and hematopoietic stem cells that regulate skeletal formation and immune health respectively. It has now become clear that these cellular components cooperate to maintain homeostasis and that dysfunction in their interaction can lead to aging and disease. Having a deeper, mechanistic appreciation for osteoimmune regulation will lead to better research perspective and therapeutics with the potential to improve the aging process, skeletal and hematologic regeneration, and disease targeting.
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Affiliation(s)
- Emily R Quarato
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA.
- James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA.
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.
| | - Noah A Salama
- James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA.
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA.
| | - Laura M Calvi
- James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA.
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.
- Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA.
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27
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Bientinesi E, Ristori S, Lulli M, Monti D. Quercetin induces senolysis of doxorubicin-induced senescent fibroblasts by reducing autophagy, preventing their pro-tumour effect on osteosarcoma cells. Mech Ageing Dev 2024; 220:111957. [PMID: 38909661 DOI: 10.1016/j.mad.2024.111957] [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: 04/22/2024] [Revised: 06/12/2024] [Accepted: 06/19/2024] [Indexed: 06/25/2024]
Abstract
Cellular senescence contributes to ageing and age-related diseases, and multiple therapeutic strategies are being developed to counteract it. Senolytic drugs are being tested in clinical trials to eliminate senescent cells selectively, but their effects and mechanisms are still unclear. Several studies reveal that the upregulation of senescence-associated secretory phenotype (SASP) factors in senescent cells is accompanied by increased autophagic activity to counteract the endoplasmic reticulum (ER) stress. Our study shows that Doxo-induced senescent fibroblasts yield several SASP factors and exhibit increased autophagy. Interestingly, Quercetin, a bioactive flavonoid, reduces autophagy, increases ER stress, and partially triggers senescent fibroblast death. Given the role of senescent cells in cancer progression, we tested the effect of conditioned media from untreated and quercetin-treated senescent fibroblasts on osteosarcoma cells to determine whether senolytic treatment affected tumour cell behaviour. We report that the partial senescent fibroblast clearance, achieved by quercetin, reduced osteosarcoma cell invasiveness, curbing the pro-tumour effects of senescent cells. The reduction of cell autophagic activity and increased ER stress, an undescribed effect of quercetin, emerges as a new vulnerability of Doxo-induced senescent fibroblasts and may provide a potential therapeutic target for cancer treatment, suggesting novel drug combinations as a promising strategy against the tumour.
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Affiliation(s)
- Elisa Bientinesi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence 50134, Italy.
| | - Sara Ristori
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence 50134, Italy.
| | - Matteo Lulli
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence 50134, Italy.
| | - Daniela Monti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence 50134, Italy.
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28
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Wang S, Wang R, Hu Y, Zhang Y, Yuan Q, Luo Y, Yuan C. Long noncoding RNA AI504432 upregulates FASN expression by sponging miR-1a-3p to promote lipogenesis in senescent adipocytes. Cell Signal 2024; 120:111232. [PMID: 38763183 DOI: 10.1016/j.cellsig.2024.111232] [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: 12/29/2023] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
Aging affects lipid metabolism and can cause obesity as it is closely related to the disorder of many lipogenic regulatory factors. LncRNAs have been recognized as pivotal regulators across diverse biological processes, but their effects on lipogenesis in aging remain to be further studied. In this work, using RNA sequencing (RNA-Seq), we found that the expression of lncRNA AI504432 was significantly upregulated in the eWAT (epididymal white adipose tissue) of aging mice, and the knockdown of AI504432 notably reduced the expression of several adipogenic genes (e.g., Cebp/α, Srebp-1c, Fasn, Acaca, and Scd1) in senescent adipocytes. The bioinformatics investigation revealed that AI504432 possessed a binding site for miR-1a-3p, and the discovery was verified by the luciferase reporter assay. The expression of Fasn was increased upon the inhibition of miR-1a-3p but restored upon the simultaneous silencing of AI504432. Taken together, our results suggested that AI504432 controlled lipogenesis through the miR-1a-3p/Fasn signaling pathway. The findings may inspire new therapeutic approaches to target imbalanced lipid homeostasis due to aging.
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Affiliation(s)
- Shuwen Wang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - Rui Wang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - Yaqi Hu
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - Yifan Zhang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - Qi Yuan
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - Yiyang Luo
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - Chengfu Yuan
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China; Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang 443002, China.
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29
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Froemming MN, Khosla S, Farr JN. Marrow Adipocyte Senescence in the Pathogenesis of Bone Loss. Curr Osteoporos Rep 2024; 22:378-386. [PMID: 38829487 DOI: 10.1007/s11914-024-00875-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/23/2024] [Indexed: 06/05/2024]
Abstract
PURPOSE OF REVIEW Beyond aging, senescent cells accumulate during multiple pathological conditions, including chemotherapy, radiation, glucocorticoids, obesity, and diabetes, even earlier in life. Therefore, cellular senescence represents a unifying pathogenic mechanism driving skeletal and metabolic disorders. However, whether senescent bone marrow adipocytes (BMAds) are causal in mediating skeletal dysfunction has only recently been evaluated. RECENT FINDINGS Despite evidence of BMAd senescence following glucocorticoid therapy, additional evidence for BMAd senescence in other conditions has thus far been limited. Because the study of BMAds presents unique challenges making these cells difficult to isolate and image, here we review issues and approaches to overcome such challenges, and present advancements in isolation and histological techniques that may help with the future study of senescent BMAds. Further insights into the roles of BMAd senescence in the pathogenesis of skeletal dysfunction may have important basic science and clinical implications for human physiology and disease.
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Affiliation(s)
- Mitchell N Froemming
- Division of Endocrinology, Rochester, MN, 55905, USA
- Robert and Arlene Kogod Center On Aging, Rochester, MN, 55905, USA
| | - Sundeep Khosla
- Division of Endocrinology, Rochester, MN, 55905, USA
- Robert and Arlene Kogod Center On Aging, Rochester, MN, 55905, USA
| | - Joshua N Farr
- Division of Endocrinology, Rochester, MN, 55905, USA.
- Robert and Arlene Kogod Center On Aging, Rochester, MN, 55905, USA.
- Division of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Mayo Clinic, Rochester, MN, 55905, USA.
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Duarte M, Pedrosa SS, Khusial PR, Madureira AR. Exploring the interplay between stress mediators and skin microbiota in shaping age-related hallmarks: A review. Mech Ageing Dev 2024; 220:111956. [PMID: 38906383 DOI: 10.1016/j.mad.2024.111956] [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: 02/16/2024] [Revised: 05/27/2024] [Accepted: 06/14/2024] [Indexed: 06/23/2024]
Abstract
Psychological stress is a major contributing factor to several health problems (e.g., depression, cardiovascular disease). Around 35 % of the world's population suffers from it, including younger generations. Physiologically, stress manifests through neuroendocrine pathways (Hypothalamic-Pituitary-Adrenal (HPA) axis and Sympathetic-Adrenal-Medullary (SAM) system) which culminate in the production of stress mediators like cortisol, epinephrine and norepinephrine. Stress and its mediators have been associated to body aging, through molecular mechanisms such as telomere attrition, mitochondrial dysfunction, cellular senescence, chronic inflammation, and dysbiosis, among others. Regarding its impact in the skin, stress impacts its structural integrity and physiological function. Despite this review focusing on several hallmarks of aging, emphasis was placed on skin microbiota dysbiosis. In this line, several studies, comprising different age groups, demographic contexts and body sites, have reported skin microbiota alterations associated with aging, and some effects of stress mediators on skin microbiota have also been reviewed in this paper. From a different perspective, since it is not a "traditional" stress mediator, oxytocin, a cortisol antagonist, has been related to glucorticoids inhibition and to display positive effects on cellular aging. This hormone dysregulation has been associated to psychological issues such as depression, whereas its upregulation has been linked to positive social interaction.
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Affiliation(s)
- Marco Duarte
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal
| | - Sílvia Santos Pedrosa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal
| | - P Raaj Khusial
- Amyris Biotech INC, 5885 Hollis St Ste 100, Emeryville, CA 94608-2405, USA
| | - Ana Raquel Madureira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal.
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31
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Guilatco AJ, Shah MV, Weivoda MM. Senescence in the bone marrow microenvironment: A driver in development of therapy-related myeloid neoplasms. J Bone Oncol 2024; 47:100620. [PMID: 39072049 PMCID: PMC11280103 DOI: 10.1016/j.jbo.2024.100620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/24/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Therapy-related myeloid neoplasms (t-MN) are a growing concern due to the continued use of cytotoxic therapies to treat malignancies. Cytotoxic therapies have been shown to drive therapy-induced senescence in normal tissues, including in the bone marrow microenvironment (BMME), which plays a crucial role in supporting normal hematopoiesis. This review examines recent work that focuses on the contribution of BMME senescence to t-MN pathogenesis, as well as offers a perspective on potential opportunities for therapeutic intervention.
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Affiliation(s)
- Angelo Jose Guilatco
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- Cancer Biology Program, University of Michigan, Ann Arbor, MI, USA
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Takaya K, Kishi K. Combined dasatinib and quercetin treatment contributes to skin rejuvenation through selective elimination of senescent cells in vitro and in vivo. Biogerontology 2024; 25:691-704. [PMID: 38619669 DOI: 10.1007/s10522-024-10103-z] [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: 01/26/2024] [Accepted: 03/04/2024] [Indexed: 04/16/2024]
Abstract
The skin's protective functions are compromised over time by both endogenous and exogenous aging. Senescence is well-documented in skin phenotypes, such as wrinkling and sagging, a consequence of the senescence-associated secretory phenotype (SASP) that involves the accumulation of senescent fibroblasts, chronic inflammation, and collagen remodeling. Although therapeutic approaches for eliminating senescent cells from the skin are available, their efficacy remains unclear. Accordingly, we aimed to examine the effects of dasatinib in combination with quercetin (D + Q) on senescent human skin fibroblasts and aging human skin. Senescence was induced in human dermal fibroblasts (HDFs) using approaches such as long-term passaging, ionizing radiation, and doxorubicin treatment. The generated senescent cells were treated with D + Q or vehicle. Additionally, a mouse-human chimera model was generated by subcutaneously transplanting whole-skin grafts of aged individuals onto nude mice. Mouse models were administered D + Q or vehicle by oral gavage for 30 days. Subsequently, skin samples were harvested and stained for senescence-associated beta-galactosidase. Senescence-associated markers were assessed by western blotting, reverse transcription-quantitative PCR and histological analyses. Herein, D + Q selectively eliminated senescent HDFs in all cellular models of induced senescence. Additionally, D + Q-treated aged human skin grafts exhibited increased collagen density and suppression of the SASP compared with control grafts. No adverse events were observed during the study period. Collectively, D + Q could ameliorate skin aging through selective elimination of senescent dermal fibroblasts and suppression of the SASP. Our findings suggest that D + Q could be developed as an effective therapeutic approach for combating skin aging.
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Affiliation(s)
- Kento Takaya
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan.
| | - Kazuo Kishi
- Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan
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Qi W, Bai J, Wang R, Zeng X, Zhang L. SATB1, senescence and senescence-related diseases. J Cell Physiol 2024; 239:e31327. [PMID: 38801120 DOI: 10.1002/jcp.31327] [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: 01/31/2024] [Revised: 05/06/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Aging leads to an accumulation of cellular mutations and damage, increasing the risk of senescence, apoptosis, and malignant transformation. Cellular senescence, which is pivotal in aging, acts as both a guard against cellular transformation and as a check against cancer progression. It is marked by stable cell cycle arrest, widespread macromolecular changes, a pro-inflammatory profile, and altered gene expression. However, it remains to be determined whether these differing subsets of senescent cells result from unique intrinsic programs or are influenced by their environmental contexts. Multiple transcription regulators and chromatin modifiers contribute to these alterations. Special AT-rich sequence-binding protein 1 (SATB1) stands out as a crucial regulator in this process, orchestrating gene expression by structuring chromatin into loop domains and anchoring DNA elements. This review provides an overview of cellular senescence and delves into the role of SATB1 in senescence-related diseases. It highlights SATB1's potential in developing antiaging and anticancer strategies, potentially contributing to improved quality of life and addressing aging-related diseases.
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Affiliation(s)
- Wenjing Qi
- Department of Bioscience, Changchun Normal University, Changchun, Jilin, China
- Key Laboratory of Molecular Epigenetics of Ministry of Education, College of Life Sciences, Northeast Normal University, Changchun, Jilin, China
| | - Jinping Bai
- Department of Bioscience, Changchun Normal University, Changchun, Jilin, China
| | - Ruoxi Wang
- Center for Cell Structure and Function, College of Life Sciences, Key Laboratory of Animal Resistance Biology of Shandong Province, Shandong Normal University, Jinan, Shandong, China
| | - Xianlu Zeng
- Key Laboratory of Molecular Epigenetics of Ministry of Education, College of Life Sciences, Northeast Normal University, Changchun, Jilin, China
| | - Lihui Zhang
- Department of Bioscience, Changchun Normal University, Changchun, Jilin, China
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34
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Alibhai FJ, Li RK. Rejuvenation of the Aging Heart: Molecular Determinants and Applications. Can J Cardiol 2024; 40:1394-1411. [PMID: 38460612 DOI: 10.1016/j.cjca.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024] Open
Abstract
In Canada and worldwide, the elderly population (ie, individuals > 65 years of age) is increasing disproportionately relative to the total population. This is expected to have a substantial impact on the health care system, as increased aged is associated with a greater incidence of chronic noncommunicable diseases. Within the elderly population, cardiovascular disease is a leading cause of death, therefore developing therapies that can prevent or slow disease progression in this group is highly desirable. Historically, aging research has focused on the development of anti-aging therapies that are implemented early in life and slow the age-dependent decline in cell and organ function. However, accumulating evidence supports that late-in-life therapies can also benefit the aged cardiovascular system by limiting age-dependent functional decline. Moreover, recent studies have demonstrated that rejuvenation (ie, reverting cellular function to that of a younger phenotype) of the already aged cardiovascular system is possible, opening new avenues to develop therapies for older individuals. In this review, we first provide an overview of the functional changes that occur in the cardiomyocyte with aging and how this contributes to the age-dependent decline in heart function. We then discuss the various anti-aging and rejuvenation strategies that have been pursued to improve the function of the aged cardiomyocyte, with a focus on therapies implemented late in life. These strategies include 1) established systemic approaches (caloric restriction, exercise), 2) pharmacologic approaches (mTOR, AMPK, SIRT1, and autophagy-targeting molecules), and 3) emerging rejuvenation approaches (partial reprogramming, parabiosis/modulation of circulating factors, targeting endogenous stem cell populations, and senotherapeutics). Collectively, these studies demonstrate the exciting potential and limitations of current rejuvenation strategies and highlight future areas of investigation that will contribute to the development of rejuvenation therapies for the aged heart.
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Affiliation(s)
- Faisal J Alibhai
- Toronto General Research Hospital Institute, University Health Network, Toronto, Ontario, Canada
| | - Ren-Ke Li
- Toronto General Research Hospital Institute, University Health Network, Toronto, Ontario, Canada; Department of Surgery, Division of Cardiovascular Surgery, University of Toronto, Toronto, Ontario, Canada.
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Liu Y, Lomeli I, Kron SJ. Therapy-Induced Cellular Senescence: Potentiating Tumor Elimination or Driving Cancer Resistance and Recurrence? Cells 2024; 13:1281. [PMID: 39120312 PMCID: PMC11312217 DOI: 10.3390/cells13151281] [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: 06/01/2024] [Revised: 07/17/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024] Open
Abstract
Cellular senescence has been increasingly recognized as a hallmark of cancer, reflecting its association with aging and inflammation, its role as a response to deregulated proliferation and oncogenic stress, and its induction by cancer therapies. While therapy-induced senescence (TIS) has been linked to resistance, recurrence, metastasis, and normal tissue toxicity, TIS also has the potential to enhance therapy response and stimulate anti-tumor immunity. In this review, we examine the Jekyll and Hyde nature of senescent cells (SnCs), focusing on how their persistence while expressing the senescence-associated secretory phenotype (SASP) modulates the tumor microenvironment through autocrine and paracrine mechanisms. Through the SASP, SnCs can mediate both resistance and response to cancer therapies. To fulfill the unmet potential of cancer immunotherapy, we consider how SnCs may influence tumor inflammation and serve as an antigen source to potentiate anti-tumor immune response. This new perspective suggests treatment approaches based on TIS to enhance immune checkpoint blockade. Finally, we describe strategies for mitigating the detrimental effects of senescence, such as modulating the SASP or targeting SnC persistence, which may enhance the overall benefits of cancer treatment.
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Affiliation(s)
| | | | - Stephen J. Kron
- Ludwig Center for Metastasis Research and Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, IL 60637, USA
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36
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Wang J, Liu W, Huang Y, Wang G, Guo X, Shi D, Sun T, Xiao C, Zhang C, Jiang B, Guo Y, Li J. A Senomorphlytic Three-Drug Combination Discovered in Salsola collina for Delaying Aging Phenotypes and Extending Healthspan. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2401862. [PMID: 39073681 DOI: 10.1002/advs.202401862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 07/07/2024] [Indexed: 07/30/2024]
Abstract
The pursuit of pharmacological interventions in aging aims focuses on maximizing safety and efficacy, prompting an exploration of natural products endowed with inherent medicinal properties. Subsequently, this work establishes a unique library of plant extracts sourced from Yunnan Province, China. Screening of this herbal library herein revealed that Salsola collina (JM10001) notably enhances both lifespan and healthspan in C. elegans. Further analysis via network pharmacology indicates that the p53 signaling pathway plays a crucial role in mediating the anti-aging effects of JM10001. Additionally, this work identifies that a composition, designated as JM10101 and comprising three chemical constituents of JM10001, preserves the original lifespan-extending activity in C. elegans. Both JM10001 and JM10101 mitigate aging symptoms in senescence-accelerated mice treated with doxorubicin and in naturally aged mice. Notably, JM10101 exhibits a more sophisticated senomorphlytic role encompassing both senomorphic and senolytic functions than JM10001 in the modulation of senescent cells, offering a promising strategy for the discovery of combination drugs in the rational development of anti-aging therapies.
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Affiliation(s)
- Jiqun Wang
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Wenwen Liu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Yunyuan Huang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, Hubei, 430079, China
| | - Guangwei Wang
- School of Chemical Engineering, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Northwest University, Xi'an, 710127, China
| | - Xiaobo Guo
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Donglei Shi
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Tianyue Sun
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Chaojiang Xiao
- Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from Western Yunnan, Institute of Materia Medica & College of Pharmacy, Dali University, Dali, Yunnan, 671000, China
| | - Chao Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Bei Jiang
- Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from Western Yunnan, Institute of Materia Medica & College of Pharmacy, Dali University, Dali, Yunnan, 671000, China
| | - Yuan Guo
- School of Chemical Engineering, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Northwest University, Xi'an, 710127, China
| | - Jian Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832003, China
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37
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Hense JD, Garcia DN, Zanini BM, Barreto MM, Perreira GC, Isola JVV, de Brito C, Fornalik M, Mondal SA, Ávila BM, Oliveira TL, Rice HC, Lacy CI, Vaucher RA, Mason JB, Masternak MM, Stout MB, Schneider A. MASLD does not affect fertility and senolytics fail to prevent MASLD progression in male mice. Sci Rep 2024; 14:17332. [PMID: 39068167 PMCID: PMC11283523 DOI: 10.1038/s41598-024-67697-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024] Open
Abstract
Senescent cells have been linked to the pathogenesis of metabolic dysfunction-associated steatotic liver disease (MASLD). However, the effectiveness of senolytic drugs in reducing liver damage in mice with MASLD is not clear. Additionally, MASLD has been reported to adversely affect male reproductive function. Therefore, this study aimed to evaluate the protective effect of senolytic drugs on liver damage and fertility in male mice with MASLD. Three-month-old male mice were fed a standard diet (SD) or a choline-deficient western diet (WD) until 9 months of age. At 6 months of age mice were randomized within dietary treatment groups into senolytic (dasatinib + quercetin [D + Q]; fisetin [FIS]) or vehicle control treatment groups. We found that mice fed choline-deficient WD had liver damage characteristic of MASLD, with increased liver size, triglycerides accumulation, fibrosis, along increased liver cellular senescence and liver and systemic inflammation. Senolytics were not able to reduce liver damage, senescence and systemic inflammation, suggesting limited efficacy in controlling WD-induced liver damage. Sperm quality and fertility remained unchanged in mice developing MASLD or receiving senolytics. Our data suggest that liver damage and senescence in mice developing MASLD is not reversible by the use of senolytics. Additionally, neither MASLD nor senolytics affected fertility in male mice.
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Affiliation(s)
- Jessica D Hense
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil
| | - Driele N Garcia
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil
| | - Bianka M Zanini
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil
| | - Mariana M Barreto
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil
| | - Giulia C Perreira
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil
| | - José V V Isola
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
| | - Camila de Brito
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
| | - Michal Fornalik
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
| | - Samim A Mondal
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
- Department of Endocrinology, JIPMER, Puducherry, 605006, India
| | - Bianca M Ávila
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil
| | - Thais L Oliveira
- Biotechnology Center, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Heather C Rice
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
| | - Charles I Lacy
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
| | - Rodrigo A Vaucher
- Center for Chemical, Pharmaceutical and Food Sciences, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Jeffrey B Mason
- Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, College of Veterinary Medicine, Utah State University, Logan, UT, USA
| | - Michal M Masternak
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - Michael B Stout
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma, OK, USA
| | - Augusto Schneider
- Nutrition College, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 228, Pelotas, RS, CEP 9601-610, Brazil.
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Libby P, Smith R, Rubin EJ, Glassberg MK, Farkouh ME, Rosenson RS. Inflammation unites diverse acute and chronic diseases. Eur J Clin Invest 2024:e14280. [PMID: 39046830 DOI: 10.1111/eci.14280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/10/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND Inflammation and immunity contribute pivotally to diverse acute and chronic diseases. Inflammatory pathways have become increasingly targets for therapy. Yet, despite substantial similarity in mechanisms and pathways, the scientific, medical, pharma and biotechnology sectors have generally focused programs finely on a single disease entity or organ system. This insularity may impede progress in innovation and the harnessing of powerful new insights into inflammation biology ripe for clinical translation. METHODS A multidisciplinary thinktank reviewed highlights how inflammation contributes to diverse diseases, disturbed homeostasis, ageing and impaired healthspan. We explored how common inflammatory and immune mechanisms that operate in key conditions in their respective domains. This consensus review highlights the high degree of commonality of inflammatory mechanisms in a diverse array of conditions that together contribute a major part of the global burden of morbidity and mortality and present an enormous challenge to public health and drain on resources. RESULTS We demonstrate how that shared inflammatory mechanisms unite many seemingly disparate diseases, both acute and chronic. The examples of infection, cardiovascular conditions, pulmonary diseases, rheumatological disorders, dementia, cancer and ageing illustrate the overlapping pathogenesis. We outline opportunities to synergize, reduce duplication and consolidate efforts of the clinical, research and pharmaceutical communities. Enhanced recognition of these commonalties should promote cross-fertilization and hasten progress in this rapidly moving domain. CONCLUSIONS Greater appreciation of the shared mechanisms should simplify understanding seemingly disparate diseases for clinicians and help them to recognize inflammation as a therapeutic target which the development of novel therapies is rendering actionable.
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Affiliation(s)
- Peter Libby
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Eric J Rubin
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | | | - Michael E Farkouh
- Division of Cardiology, University Health Network, Toronto, Ontario, Canada
- Peter Munk Centre of Excellence in Multinational Clinical Trials, University Health Network, Toronto, Ontario, Canada
| | - Robert S Rosenson
- Cardiometabolics Unit, Mount Sinai Icahn School of Medicine, Mount Sinai Hospital, New York, New York, USA
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39
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Low E, Smith LA, Miwa S, Fielder E, Przyborski S, von Zglinicki T. Senescent Dermal Fibroblasts Decrease Stemness in Basal Keratinocytes in a Bioengineered Model of Human Full-Thickness Skin. J Invest Dermatol 2024:S0022-202X(24)01916-X. [PMID: 39047968 DOI: 10.1016/j.jid.2024.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/27/2024]
Affiliation(s)
- Evon Low
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Lucy A Smith
- Department of Biosciences, Durham University, Durham, United Kingdom
| | - Satomi Miwa
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Edward Fielder
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Stefan Przyborski
- Department of Biosciences, Durham University, Durham, United Kingdom; Reprocell Europe Limited, Thomson Pavilion, Glasgow, United Kingdom.
| | - Thomas von Zglinicki
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom.
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40
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Hense JD, Isola JVV, Garcia DN, Magalhães LS, Masternak MM, Stout MB, Schneider A. The role of cellular senescence in ovarian aging. NPJ AGING 2024; 10:35. [PMID: 39033161 PMCID: PMC11271274 DOI: 10.1038/s41514-024-00157-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/29/2024] [Indexed: 07/23/2024]
Abstract
This review explores the relationship between ovarian aging and senescent cell accumulation, as well as the efficacy of senolytics to improve reproductive longevity. Reproductive longevity is determined by the age-associated decline in ovarian reserve, resulting in reduced fertility and eventually menopause. Cellular senescence is a state of permanent cell cycle arrest and resistance to apoptosis. Senescent cells accumulate in several tissues with advancing age, thereby promoting chronic inflammation and age-related diseases. Ovaries also appear to accumulate senescent cells with age, which might contribute to aging of the reproductive system and whole organism through SASP production. Importantly, senolytic drugs can eliminate senescent cells and may present a potential intervention to mitigate ovarian aging. Herein, we review the current literature related to the efficacy of senolytic drugs for extending the reproductive window in mice.
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Affiliation(s)
- Jéssica D Hense
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- Nutrition College, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - José V V Isola
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Driele N Garcia
- Nutrition College, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | | | - Michal M Masternak
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
| | - Michael B Stout
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK, USA
| | - Augusto Schneider
- Nutrition College, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
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41
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Yao Y, Bin X, Xu Y, Chen S, Chen S, Yuan XL, Cao Y, Ng TK. Cellular senescence mediates retinal ganglion cell survival regulation post-optic nerve crush injury. Cell Prolif 2024:e13719. [PMID: 39021340 DOI: 10.1111/cpr.13719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 06/24/2024] [Accepted: 07/08/2024] [Indexed: 07/20/2024] Open
Abstract
Traumatic optic neuropathy refers to optic nerve (ON) injury by trauma, including explosion and traffic accident. Retinal ganglion cell (RGC) death is the critical pathological cause of irreversible visual impairment and blindness in ON injury. We previously investigated the patterns of 11 modes of cell death in mouse retina post-ON injury. Here we aimed to identify additional signalling pathways regulating RGC survival in rodents post-ON injury. RNA sequencing analysis identified the upregulation of inflammation and cellular senescence-related genes in retina post-ON injury, which were confirmed by immunoblotting and immunofluorescence analyses. Increased expression of senescence-associated β-galactosidase (SA-βgal) in RGCs and activation of microglia were also found. Transforming growth factor-β receptor type II inhibitor (LY2109761) treatment suppressed p15Ink4b and p21Cip1 protein and SA-βgal expression and promoted RGC survival post-ON injury with decreasing the expression of cell death markers in retina. Consistently, senolytics (dasatinib and quercetin) treatments can promote RGC survival and alleviate the reduction of ganglion cell complex thickness and pattern electroretinography activity post-ON injury with reducing SA-βgal, p15Ink4b, p21Cip1, microglial activation and cell death marker expression. In summary, this study revealed the activation of cellular senescence in rodent retina post-ON injury and contribute to RGC survival regulation. Targeting cellular senescence can promote RGC survival after ON injury, suggesting a potential treatment strategy for traumatic optic neuropathy.
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Affiliation(s)
- Yao Yao
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Xin Bin
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Yanxuan Xu
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Shaowan Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Si Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Xiang-Ling Yuan
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Yingjie Cao
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Tsz Kin Ng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
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Boraldi F, Lofaro FD, Bonacorsi S, Mazzilli A, Garcia-Fernandez M, Quaglino D. The Role of Fibroblasts in Skin Homeostasis and Repair. Biomedicines 2024; 12:1586. [PMID: 39062158 PMCID: PMC11274439 DOI: 10.3390/biomedicines12071586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/08/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Fibroblasts are typical mesenchymal cells widely distributed throughout the human body where they (1) synthesise and maintain the extracellular matrix, ensuring the structural role of soft connective tissues; (2) secrete cytokines and growth factors; (3) communicate with each other and with other cell types, acting as signalling source for stem cell niches; and (4) are involved in tissue remodelling, wound healing, fibrosis, and cancer. This review focuses on the developmental heterogeneity of dermal fibroblasts, on their ability to sense changes in biomechanical properties of the surrounding extracellular matrix, and on their role in aging, in skin repair, in pathologic conditions and in tumour development. Moreover, we describe the use of fibroblasts in different models (e.g., in vivo animal models and in vitro systems from 2D to 6D cultures) for tissue bioengineering and the informative potential of high-throughput assays for the study of fibroblasts under different disease contexts for personalized healthcare and regenerative medicine applications.
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Affiliation(s)
- Federica Boraldi
- Department of Life Science, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (S.B.); (A.M.)
| | - Francesco Demetrio Lofaro
- Department of Life Science, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (S.B.); (A.M.)
| | - Susanna Bonacorsi
- Department of Life Science, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (S.B.); (A.M.)
| | - Alessia Mazzilli
- Department of Life Science, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (S.B.); (A.M.)
| | - Maria Garcia-Fernandez
- Department of Human Physiology, Institute of Biomedical Investigation (IBIMA), University of Málaga, 29010 Málaga, Spain;
| | - Daniela Quaglino
- Department of Life Science, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (S.B.); (A.M.)
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Yao M, Wei Z, Nielsen JOS, Kakazu A, Ouyang Y, Li R, Chu T, Scafidi S, Lu H, Aggarwal M, Duan W. Senolytic therapy preserves blood-brain barrier integrity and promotes microglia homeostasis in a tauopathy model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.25.586662. [PMID: 38585805 PMCID: PMC10996647 DOI: 10.1101/2024.03.25.586662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Cellular senescence, characterized by expressing the cell cycle inhibitory proteins, is evident in driving age-related diseases. Senescent cells play a crucial role in the initiation and progression of tau-mediated pathology, suggesting that targeting cell senescence offers a therapeutic potential for treating tauopathy associated diseases. This study focuses on identifying non-invasive biomarkers and validating their responses to a well-characterized senolytic therapy combining dasatinib and quercetin (D+Q), in a widely used tauopathy mouse model, PS19. We employed human-translatable MRI measures, including water extraction with phase-contrast arterial spin tagging (WEPCAST) MRI, T2 relaxation under spin tagging (TRUST), longitudinally assessed brain physiology and high-resolution structural MRI evaluated the brain regional volumes in PS19 mice. Our data reveal increased BBB permeability, decreased oxygen extraction fraction, and brain atrophy in 9-month-old PS19 mice compared to their littermate controls. (D+Q) treatment effectively preserves BBB integrity, rescues cerebral oxygen hypometabolism, attenuates brain atrophy, and alleviates tau hyperphosphorylation in PS19 mice. Mechanistically, D+Q treatment induces a shift of microglia from a disease-associated to a homeostatic state, reducing a senescence-like microglial phenotype marked by increased p16/INK4a. D+Q-treated PS19 mice exhibit enhanced cue-associated cognitive performance in the tracing fear conditioning test compared to the vehicle-treated littermates, implying improved cognitive function by D+Q treatment. Our results pave the way for application of senolytic treatment as well as these noninvasive MRI biomarkers in clinical trials in tauopathy associated neurological disorders.
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Zhao S, Wang L, Ouyang M, Xing S, Liu S, Sun L, Yu H. Polyploid giant cancer cells induced by Docetaxel exhibit a senescence phenotype with the expression of stem cell markers in ovarian cancer cells. PLoS One 2024; 19:e0306969. [PMID: 38990953 PMCID: PMC11239069 DOI: 10.1371/journal.pone.0306969] [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] [Received: 03/24/2024] [Accepted: 06/26/2024] [Indexed: 07/13/2024] Open
Abstract
Docetaxel (Doc) plays a crucial role in clinical antineoplastic practice. However, it is continuously documented that tumors frequently develop chemoresistance and relapse, which may be related to polyploid giant cancer cells (PGCCs). The aim of this study was investigate the formation mechanism and biological behavior of PGCCs induced by Doc. Ovarian cancer cells were treated with Doc, and then the effect of Doc on cellular viability was evaluated by MTT assay and microscopic imaging analysis. The biological properties of PGCCs were further evaluated by Hoechst 33342 staining, cell cycle and DNA content assay, DNA damage response (DDR) signaling detection, β-galactosidase staining, mitochondrial membrane potential detection, and reverse transcription-quantitative polymerase chain reaction. The results indicated that Doc reduced cellular viability; however, many cells were still alive, and were giant and polyploid. Doc increased the proportion of cells stayed in the G2/M phase and reduced the number of cells. In addition, the expression of γ-H2A.X was constantly increased after Doc treatment. PGCCs showed senescence-associated β-galactosidase activity and an increase in the monomeric form of JC-1. The mRNA level of octamer-binding transcription factor 4 (OCT4) and krüppel-like factor 4 (KLF4) was significantly increased in PGCCs. Taken together, our results suggest that Doc induces G2/M cell cycle arrest, inhibits the proliferation and activates persistent DDR signaling to promote the formation of PGCCs. Importantly, PGCCs exhibit a senescence phenotype and express stem cell markers.
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Affiliation(s)
- Song Zhao
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Lili Wang
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Mingyue Ouyang
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Sining Xing
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Shuo Liu
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Lingyan Sun
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Huiying Yu
- Laboratory of Basic Medicine, General Hospital of Northern Theater Command, Shenyang, China
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45
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Kuerec AH, Lim XK, Khoo AL, Sandalova E, Guan L, Feng L, Maier AB. Targeting aging with urolithin A in humans: A systematic review. Ageing Res Rev 2024; 100:102406. [PMID: 39002645 DOI: 10.1016/j.arr.2024.102406] [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: 01/24/2024] [Revised: 06/26/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024]
Abstract
Urolithin A (UA) is a gut metabolite derived from ellagic acid. This systematic review assesses the potential geroprotective effect of UA in humans. In five studies including 250 healthy individuals, UA (10-1000 mg/day) for a duration ranging from 28 days to 4 months, showed a dose-dependent anti-inflammatory effect and upregulated some mitochondrial genes, markers of autophagy, and fatty acid oxidation. It did not affect mitochondrial maximal adenosine triphosphate production, biogenesis, dynamics, or gut microbiota composition. UA increased muscle strength and endurance, however, had no effect on anthropometrics, cardiovascular outcomes, and physical function. Unrelated adverse events were mild or moderate. Further research across more physiological systems and longer intervention periods is required.
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Affiliation(s)
- Ajla Hodzic Kuerec
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore
| | - Xuan K Lim
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore
| | - Anderson Ly Khoo
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore
| | - Elena Sandalova
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore
| | - Lihuan Guan
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore
| | - Lei Feng
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore; Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Andrea B Maier
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Centre for Healthy Longevity, @AgeSingapore, National University Health System, 10 Medical Drive, Singapore 117597, Singapore; Department of Human Movement Sciences, @AgeAmsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Van der Boechorststraat 7, Amsterdam 1081 BT, the Netherlands.
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Hernandez-Gonzalez F, Pietrocola F, Cameli P, Bargagli E, Prieto-González S, Cruz T, Mendoza N, Rojas M, Serrano M, Agustí A, Faner R, Gómez-Puerta JA, Sellares J. Exploring the Interplay between Cellular Senescence, Immunity, and Fibrosing Interstitial Lung Diseases: Challenges and Opportunities. Int J Mol Sci 2024; 25:7554. [PMID: 39062798 PMCID: PMC11276754 DOI: 10.3390/ijms25147554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Fibrosing interstitial lung diseases (ILDs) are characterized by the gradual and irreversible accumulation of scar tissue in the lung parenchyma. The role of the immune response in the pathogenesis of pulmonary fibrosis remains unclear. In recent years, substantial advancements have been made in our comprehension of the pathobiology driving fibrosing ILDs, particularly concerning various age-related cellular disturbances and immune mechanisms believed to contribute to an inadequate response to stress and increased susceptibility to lung fibrosis. Emerging studies emphasize cellular senescence as a key mechanism implicated in the pathobiology of age-related diseases, including pulmonary fibrosis. Cellular senescence, marked by antagonistic pleiotropy, and the complex interplay with immunity, are pivotal in comprehending many aspects of lung fibrosis. Here, we review progress in novel concepts in cellular senescence, its association with the dysregulation of the immune response, and the evidence underlining its detrimental role in fibrosing ILDs.
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Affiliation(s)
- Fernanda Hernandez-Gonzalez
- Department of Respiratory Medicine, Respiratory Institute, Hospital Clinic Barcelona, 08036 Barcelona, Spain; (A.A.); (J.S.)
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Federico Pietrocola
- Department of Cell and Molecular Biology, Karolinska Institutet, 17165 Solna, Sweden;
| | - Paolo Cameli
- Respiratory Diseases Unit, Department of Medical and Surgical Sciences & Neuro-Sciences, University of Siena, 53100 Siena, Italy; (P.C.); (E.B.)
| | - Elena Bargagli
- Respiratory Diseases Unit, Department of Medical and Surgical Sciences & Neuro-Sciences, University of Siena, 53100 Siena, Italy; (P.C.); (E.B.)
| | - Sergio Prieto-González
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Vasculitis Research Unit, Department of Autoimmune Diseases, Hospital Clinic Barcelona, 08036 Barcelona, Spain
| | - Tamara Cruz
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
| | - Nuria Mendoza
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
| | - Mauricio Rojas
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA;
| | - Manuel Serrano
- Cambridge Institute of Science, Altos Labs, Cambridge CB21 6GP, UK;
| | - Alvar Agustí
- Department of Respiratory Medicine, Respiratory Institute, Hospital Clinic Barcelona, 08036 Barcelona, Spain; (A.A.); (J.S.)
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
| | - Rosa Faner
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
- Biomedicine Department, University of Barcelona, 08036 Barcelona, Spain
| | - Jose A. Gómez-Puerta
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Rheumatology Department, Hospital Clinic Barcelona, 08036 Barcelona, Spain
| | - Jacobo Sellares
- Department of Respiratory Medicine, Respiratory Institute, Hospital Clinic Barcelona, 08036 Barcelona, Spain; (A.A.); (J.S.)
- Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (S.P.-G.); (T.C.); (N.M.); (R.F.)
- Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
- Centro Investigación Biomédica en Red Enfermedades Respiratorias (CIBERES), 08036 Barcelona, Spain
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Yu ZZ, Tu JJ, Ou ML, Cen JX, Xue K, Li SJ, Zhou J, Lu GD. A mechanistic analysis of metformin's biphasic effects on lifespan and healthspan in C. elegans: Elixir in youth, poison in elder. Mech Ageing Dev 2024; 221:111963. [PMID: 38986790 DOI: 10.1016/j.mad.2024.111963] [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: 03/28/2024] [Revised: 07/04/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Aging, a complex biological process influenced by genetic, environmental, and pharmacological factors, presents a significant challenge in understanding its underlying mechanisms. In this study, we explored the divergent impacts of metformin treatment on the lifespan and healthspan of young and old C. elegans, demonstrating a intriguing "elixir in youth, poison in elder" phenomenon. By scrutinizing the gene expression changes in response to metformin in young (day 1 of adulthood) and old (days 8) groups, we identified nhr-57 and C46G7.1 as potential modulators of age-specific responses. Notably, nhr-57 and C46G7.1 exhibit contrasting regulation patterns, being up-regulated in young worms but down-regulated in old counterparts following metformin treatment. Functional studies employing knockdown approaches targeting nhr-57, a gene under the control of hif-1 with a documented protective function against pore-forming toxins in C. elegans, and C46G7.1, unveiled their critical roles in modulating lifespan and healthspan, as well as in mediating the biphasic effects of metformin. Furthermore, deletion of hif-1 retarded the influence of metformin, implicating the involvement of hif-1/nhr-57 in age-specific drug responses. These findings underscored the necessity of deciphering the mechanisms governing age-related susceptibility to pharmacological agents to tailor interventions for promoting successful aging.
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Affiliation(s)
- Zhen-Zhen Yu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China.
| | - Jia-Jun Tu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China.
| | - Mei-Ling Ou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China.
| | - Jin-Xiong Cen
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China.
| | - Kun Xue
- School of Public Health, Fudan University, Shanghai 200032, PR China.
| | - Shao-Jun Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, PR China.
| | - Jing Zhou
- Department of Physiology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China.
| | - Guo-Dong Lu
- School of Public Health, Fudan University, Shanghai 200032, PR China; Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province 530021, PR China.
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Lin X, Zhang K, Li C, Liu K, Sun Y, Wu W, Liu K, Yi X, Wang X, Qu Z, Liu X, Xing Y, Walker MJ, Gong Q, Liu R, Xu X, Lin CH, Sun G. Combination of Dasatinib and Quercetin alleviates heat stress-induced cognitive deficits in aged and young adult male mice. Eur J Pharmacol 2024; 974:176631. [PMID: 38692425 DOI: 10.1016/j.ejphar.2024.176631] [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: 01/16/2024] [Revised: 03/29/2024] [Accepted: 04/29/2024] [Indexed: 05/03/2024]
Abstract
OBJECTIVE Dasatinib and quercetin (D & Q) have demonstrated promise in improving aged-related pathophysiological dysfunctions in humans and mice. Herein we aimed to ascertain whether the heat stress (HS)-induced cognitive deficits in aged or even young adult male mice can be reduced by D & Q therapy. METHODS Before the onset of HS, animals were pre-treated with D & Q or placebo for 3 consecutive days every 2 weeks over a 10-week period. Cognitive function, intestinal barrier permeability, and blood-brain barrier permeability were assessed. RESULTS Compared to the non-HS young adult male mice, the HS young adult male mice or the aged male mice had significantly lesser extents of the exacerbated stress reactions, intestinal barrier disruption, endotoxemia, systemic inflammation and oxidative stress, blood-brain barrier disruption, hippocampal inflammation and oxidative stress, and cognitive deficits evaluated at 7 days post-HS. All the cognitive deficits and other syndromes that occurred in young adult HS mice or in aged HS mice were significantly attenuated by D & Q therapy (P < 0.01). Compared to the young adult HS mice, the aged HS mice had significantly (P < 0.01) higher severity of cognitive deficits and other related syndromes. CONCLUSIONS First, our data show that aged male mice are more vulnerable to HS-induced cognitive deficits than those of the young adult male mice. Second, we demonstrate that a combination of D and Q therapy attenuates cognitive deficits in heat stressed aged or young adult male mice via broad normalization of the brain-gut-endotoxin axis function.
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Affiliation(s)
- Xiaojing Lin
- Key Laboratory of Military Medical Psychology and Stress Biology of PLA, Jinan, Shandong Province, PR China
| | - Kangli Zhang
- Key Laboratory of Military Medical Psychology and Stress Biology of PLA, Jinan, Shandong Province, PR China
| | - Chenyi Li
- Key Laboratory of Military Medical Psychology and Stress Biology of PLA, Jinan, Shandong Province, PR China
| | - Kewei Liu
- Department of General Medicine, The 960th Hospital of Joint Logistics Support Force of PLA, Shandong Province, PR China
| | - Yanping Sun
- Department of Applied Psychology, College of Sports and Health, Shandong Sport University, Shandong, PR China
| | - Wei Wu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kai Liu
- Department of Medical Imaging, The 960th Hospital of Joint Logistics Support Force of PLA, Shandong Province, PR China
| | - Xeuqing Yi
- Department of Medical Imaging, The 960th Hospital of Joint Logistics Support Force of PLA, Shandong Province, PR China
| | - Xiaowen Wang
- Frankston ED, Peninsula Health, Frankston Hospital, 2 Hastings Rd, Frankston, Victoria, 3199, Australia
| | - Zixuan Qu
- Key Laboratory of Military Medical Psychology and Stress Biology of PLA, Jinan, Shandong Province, PR China
| | - Xiaohong Liu
- Department of Pathology, The 960th Hospital of Joint Logistics Support Force of PLA, Shandong Province, PR China
| | - Yao Xing
- Wuhan United Imaging Life Science Instrument Co., Ltd., 99 Gaokeyuan Rd., Wuhan East High-Tech Development Zone, Wuhan, Hubei, PR China
| | - M J Walker
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Qinglei Gong
- Department of Medical Imaging, The 960th Hospital of Joint Logistics Support Force of PLA, Shandong Province, PR China
| | - Ruoxu Liu
- State Key Laboratory of Proteomics and Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, PR China
| | - Xiaoming Xu
- Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Cheng-Hsien Lin
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.
| | - Gang Sun
- Key Laboratory of Military Medical Psychology and Stress Biology of PLA, Jinan, Shandong Province, PR China; Department of Medical Imaging, The 960th Hospital of Joint Logistics Support Force of PLA, Shandong Province, PR China.
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49
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Somasundaram I, Jain SM, Blot-Chabaud M, Pathak S, Banerjee A, Rawat S, Sharma NR, Duttaroy AK. Mitochondrial dysfunction and its association with age-related disorders. Front Physiol 2024; 15:1384966. [PMID: 39015222 PMCID: PMC11250148 DOI: 10.3389/fphys.2024.1384966] [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: 02/12/2024] [Accepted: 06/10/2024] [Indexed: 07/18/2024] Open
Abstract
Aging is a complex process that features a functional decline in many organelles. Various factors influence the aging process, such as chromosomal abnormalities, epigenetic changes, telomere shortening, oxidative stress, and mitochondrial dysfunction. Mitochondrial dysfunction significantly impacts aging because mitochondria regulate cellular energy, oxidative balance, and calcium levels. Mitochondrial integrity is maintained by mitophagy, which helps maintain cellular homeostasis, prevents ROS production, and protects against mtDNA damage. However, increased calcium uptake and oxidative stress can disrupt mitochondrial membrane potential and permeability, leading to the apoptotic cascade. This disruption causes increased production of free radicals, leading to oxidative modification and accumulation of mitochondrial DNA mutations, which contribute to cellular dysfunction and aging. Mitochondrial dysfunction, resulting from structural and functional changes, is linked to age-related degenerative diseases. This review focuses on mitochondrial dysfunction, its implications in aging and age-related disorders, and potential anti-aging strategies through targeting mitochondrial dysfunction.
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Affiliation(s)
- Indumathi Somasundaram
- Biotechnology Engineering, Kolhapur Institute of Technology’s College of Engineering, Kolhapur, India
| | - Samatha M. Jain
- Department of Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chennai, India
| | | | - Surajit Pathak
- Department of Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chennai, India
| | - Antara Banerjee
- Department of Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chennai, India
| | - Sonali Rawat
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, India
| | - Neeta Raj Sharma
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, India
| | - Asim K. Duttaroy
- Department of Nutrition, Faculty of Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
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Tungsanga S, Bello AK. Prevention of Chronic Kidney Disease and Its Complications in Older Adults. Drugs Aging 2024; 41:565-576. [PMID: 38926293 DOI: 10.1007/s40266-024-01128-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2024] [Indexed: 06/28/2024]
Abstract
In an era marked by a global demographic shift towards an aging society, there is a heightened prevalence of chronic kidney disease (CKD) among older adults. The burden of CKD spans from kidney-related complications to impacting psychological well-being, giving rise to depressive symptoms and caregiver burnout. This article delves into CKD prevention strategies within the context of aging, contributing to the discourse by exploring its multifaceted aspects. The prevention of CKD in the older adults necessitates a comprehensive approach. Primary prevention is centered on the modification of risk factors, acknowledging the intricate interplay of various comorbidities. Secondary prevention focuses on early CKD identification. Tertiary prevention aims to address factors contributing to CKD progression and complications, emphasizing the importance of timely interventions. This comprehensive strategy aims to enhance the quality of life for individuals affected by CKD, decelerating the deterioration of functional status. By addressing CKD at multiple levels, this approach seeks to effectively and compassionately care for the aging population.
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Affiliation(s)
- Somkanya Tungsanga
- Division of Nephrology and Immunology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Division of General Internal Medicine-Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Aminu K Bello
- Division of Nephrology and Immunology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
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