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Guan Q, Zhang Y, Wang ZK, Liu XH, Zou J, Zhang LL. Skeletal phenotypes and molecular mechanisms in aging mice. Zool Res 2024; 45:724-746. [PMID: 38894518 PMCID: PMC11298674 DOI: 10.24272/j.issn.2095-8137.2023.397] [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: 02/19/2024] [Accepted: 03/28/2024] [Indexed: 06/21/2024] Open
Abstract
Aging is an inevitable physiological process, often accompanied by age-related bone loss and subsequent bone-related diseases that pose serious health risks. Research on skeletal diseases caused by aging in humans is challenging due to lengthy study durations, difficulties in sampling, regional variability, and substantial investment. Consequently, mice are preferred for such studies due to their similar motor system structure and function to humans, ease of handling and care, low cost, and short generation time. In this review, we present a comprehensive overview of the characteristics, limitations, applicability, bone phenotypes, and treatment methods in naturally aging mice and prematurely aging mouse models (including SAMP6, POLG mutant, LMNA, SIRT6, ZMPSTE24, TFAM, ERCC1, WERNER, and KL/KL-deficient mice). We also summarize the molecular mechanisms of these aging mouse models, including cellular DNA damage response, senescence-related secretory phenotype, telomere shortening, oxidative stress, bone marrow mesenchymal stem cell (BMSC) abnormalities, and mitochondrial dysfunction. Overall, this review aims to enhance our understanding of the pathogenesis of aging-related bone diseases.
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Affiliation(s)
- Qiao Guan
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Yuan Zhang
- College of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China
| | - Zhi-Kun Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Xiao-Hua Liu
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Jun Zou
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Ling-Li Zhang
- College of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China. E-mail:
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Popov AA, Petruseva IO, Lavrik OI. Activity of DNA Repair Systems in the Cells of Long-Lived Rodents and Bats. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:1014-1023. [PMID: 38981697 DOI: 10.1134/s0006297924060038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/15/2024] [Accepted: 04/03/2024] [Indexed: 07/11/2024]
Abstract
Damages of various origin accumulated in the genomic DNA can lead to the breach of genome stability, and are considered to be one of the main factors involved in cellular senescence. DNA repair systems in mammalian cells ensure effective damage removal and repair of the genome structure, therefore, activity of these systems is expected to be correlated with high maximum lifespan observed in the long-lived mammals. This review discusses current results of the studies focused on determination of the DNA repair system activity and investigation of the properties of its key regulatory proteins in the cells of long-lived rodents and bats. Based on the works discussed in the review, it could be concluded that the long-lived rodents and bats in general demonstrate high efficiency in functioning and regulation of DNA repair systems. Nevertheless, a number of questions around the study of DNA repair in the cells of long-lived rodents and bats remain poorly understood, answers to which could open up new avenues for further research.
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Affiliation(s)
- Aleksei A Popov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Irina O Petruseva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Olga I Lavrik
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch Russian Academy of Sciences, Novosibirsk, 630090, Russia.
- Novosibirsk National Research State University, Novosibirsk, 630090, Russia
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3
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Xiong Y, Yu Q, Zhi H, Peng H, Xie M, Li R, Li K, Ma Y, Sun P. Advances in the study of the glymphatic system and aging. CNS Neurosci Ther 2024; 30:e14803. [PMID: 38887168 PMCID: PMC11183173 DOI: 10.1111/cns.14803] [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: 10/27/2023] [Revised: 04/26/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
The glymphatic system is cerebrospinal fluid-brain tissue fluid exchange flow mediated by aquaporin-4 (AQP4) on the end feet of astrocytes for a system, which is capable of rapidly removing brain metabolites and thus maintaining brain homeostasis, and is known as the central immune system. Dysfunction of the glymphatic system causes accumulation of misfolded and highly phosphorylated proteins (amyloid-β and Tau proteins), which destabilizes the proteins, and the body's neuroinflammatory factors are altered causing aging of the immune system and leading to neurodegenerative diseases. Damage to the glymphatic system and aging share common manifestations, as well as unstudied biological mechanisms that are also linked, such as mitochondria, oxidative stress, chronic inflammation, and sleep. In this paper, we first summarize the structure, function, and research methods of the glymphatic system and the relationship between the glymphatic system and the peripheral immune system, and second, sort out and summarize the factors of the glymphatic system in removing metabolites and resolving aging-related diseases and factors affecting aging, to explore its related biological mechanisms, and moreover, to provide a new way of thinking for treating or intervening aging-related diseases.
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Affiliation(s)
- Ying Xiong
- School of Traditional Chinese MedicineShandong University of Traditional Chinese MedicineJinanChina
| | - Qingying Yu
- Guangdong Provincial Key Laboratory of Translational Cancer Research of Chinese Medicines, Joint International Research Laboratory of Translational Cancer Research of Chinese Medicines, International Institute for Translational Chinese Medicine, School of Pharmaceutical SciencesGuangzhou University of Chinese MedicineGuangzhouChina
| | - Haimei Zhi
- Qilu Hospital of Shandong UniversityJinanChina
| | - Huiyuan Peng
- Department of RehabilitationZhongshan Hospital of Traditional Chinese MedicineZhongshanChina
| | - Mingjun Xie
- School of Traditional Chinese MedicineShandong University of Traditional Chinese MedicineJinanChina
| | - Renjun Li
- Department of PsychiatryJinan Mental Health CenterJinanChina
| | - Kejian Li
- Innovative Institute of Chinese Medicine and PharmacyShandong University of Traditional Chinese MedicineJinanChina
| | - Yuexiang Ma
- School of Traditional Chinese MedicineShandong University of Traditional Chinese MedicineJinanChina
| | - Peng Sun
- Innovative Institute of Chinese Medicine and PharmacyShandong University of Traditional Chinese MedicineJinanChina
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4
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Liu Z, Zhang Y, Li D, Fu J. Cellular senescence in chronic lung diseases from newborns to the elderly: An update literature review. Biomed Pharmacother 2024; 173:116463. [PMID: 38503240 DOI: 10.1016/j.biopha.2024.116463] [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: 12/06/2023] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024] Open
Abstract
The role of cellular senescence in age-related diseases has been fully recognized. In various age-related-chronic lung diseases, the function of alveolar epithelial cells (AECs) is impaired and alveolar regeneration disorders, especially in bronchopulmonary dysplasia,pulmonary fibrosis (PF), chronic obstructive pulmonary disease (COPD), cancer, etc. Except for age-related-chronic lung diseases, an increasing number of studies are exploring the role of cellular senescence in developmental chronic lung diseases, which typically originate in childhood and even in the neonatal period. This review provides an overview of cellular senescence and lung diseases from newborns to the elderly, attempting to draw attention to the relationship between cellular senescence and developmental lung diseases.
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Affiliation(s)
- Ziyun Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Yiqi Zhang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Danni Li
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
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Ruprecht NA, Singhal S, Schaefer K, Panda O, Sens D, Singhal SK. A Review: Multi-Omics Approach to Studying the Association between Ionizing Radiation Effects on Biological Aging. BIOLOGY 2024; 13:98. [PMID: 38392316 PMCID: PMC10886797 DOI: 10.3390/biology13020098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/20/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
Multi-omics studies have emerged as powerful tools for tailoring individualized responses to various conditions, capitalizing on genome sequencing technologies' increasing affordability and efficiency. This paper delves into the potential of multi-omics in deepening our understanding of biological age, examining the techniques available in light of evolving technology and computational models. The primary objective is to review the relationship between ionizing radiation and biological age, exploring a wide array of functional, physiological, and psychological parameters. This comprehensive review draws upon an extensive range of sources, including peer-reviewed journal articles, government documents, and reputable websites. The literature review spans from fundamental insights into radiation effects to the latest developments in aging research. Ionizing radiation exerts its influence through direct mechanisms, notably single- and double-strand DNA breaks and cross links, along with other critical cellular events. The cumulative impact of DNA damage forms the foundation for the intricate process of natural aging, intersecting with numerous diseases and pivotal biomarkers. Furthermore, there is a resurgence of interest in ionizing radiation research from various organizations and countries, reinvigorating its importance as a key contributor to the study of biological age. Biological age serves as a vital reference point for the monitoring and mitigation of the effects of various stressors, including ionizing radiation. Ionizing radiation emerges as a potent candidate for modeling the separation of biological age from chronological age, offering a promising avenue for tailoring protocols across diverse fields, including the rigorous demands of space exploration.
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Affiliation(s)
- Nathan A Ruprecht
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND 58202, USA
| | - Sonalika Singhal
- Department of Pathology, University of North Dakota, Grand Forks, ND 58202, USA
| | - Kalli Schaefer
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND 58202, USA
| | - Om Panda
- Department of Public Health, University of California Irvine, Irvine, CA 92697, USA
| | - Donald Sens
- Department of Pathology, University of North Dakota, Grand Forks, ND 58202, USA
| | - Sandeep K Singhal
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND 58202, USA
- Department of Pathology, University of North Dakota, Grand Forks, ND 58202, USA
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Rad AN, Grillari J. Current senolytics: Mode of action, efficacy and limitations, and their future. Mech Ageing Dev 2024; 217:111888. [PMID: 38040344 DOI: 10.1016/j.mad.2023.111888] [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: 08/14/2023] [Revised: 10/11/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023]
Abstract
Senescence is a cellular state characterized by its near-permanent halted cell cycle and distinct secretory phenotype. Although senescent cells have a variety of beneficial physiological functions, progressive accumulation of these cells due to aging or other conditions has been widely shown to provoke deleterious effects on the normal functioning of the same or higher-level biological organizations. Recently, erasing senescent cells in vivo, using senolytics, could ameliorate diseases identified with an elevated number of senescent cells. Since then, researchers have struggled to develop new senolytics each with different selectivity and potency. In this review, we have gathered and classified the proposed senolytics and discussed their mechanisms of action. Moreover, we highlight the heterogeneity of senolytics regarding their effect sizes, and cell type specificity as well as comment on the exploited strategies to improve these features. Finally, we suggest some prospective routes for the novel methods for ablation of senescent cells.
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Affiliation(s)
- Amirhossein Nayeri Rad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P.O. Box 71468-64685, Shiraz, Iran.
| | - Johannes Grillari
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Donaueschingenstraße 13, 1200 Vienna, Austria; Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences Vienna, Muthgasse 18, 1190 Vienna, Austria.
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Yao J, Liang X, Xu S, Liu Y, Shui L, Li S, Guo H, Xiao Z, Zhao Y, Zheng M. TRAF2 inhibits senescence in hepatocellular carcinoma cells via regulating the ROMO1/ NAD +/SIRT3/SOD2 axis. Free Radic Biol Med 2024; 211:47-62. [PMID: 38043870 DOI: 10.1016/j.freeradbiomed.2023.11.035] [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: 09/15/2023] [Revised: 11/16/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
The suppression of tumor proliferation via cellular senescence has emerged as a promising approach for anti-tumor therapy. Tumor necrosis factor receptor-associated factor 2 (TRAF2), an adaptor protein involved in the NF-κB signaling pathway and reactive oxygen species (ROS) production, has been implicated in hepatocellular carcinoma (HCC) proliferation. However, little is currently known about whether TRAF2 promotes HCC development by inhibiting cellular senescence. Replicative senescence model and IR-induced mouse model demonstrated that TRAF2 expression was decrease in senescence cells or liver tissues. Depletion of TRAF2 could inhibit proliferation and arrest the cell cycle via activating p53/p21WAF1 and p16INK4a/pRb signaling pathways in HCC cells and eventually lead to cellular senescence. Mechanistically, TRAF2 deficiency increased the expression of mitochondrial protein reactive oxygen species modulator 1 (ROMO1) and subsequently activated the NAD+/SIRT3/SOD2 pathway to promote the production of ROS and cause mitochondrial dysfunction, which eventually contributed to DNA damage response (DDR). Our findings demonstrate that TRAF2 deficiency inhibits the proliferation of HCC by promoting senescence. Therefore, targeting TRAF2 through various approaches holds therapeutic potential for treating HCC.
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Affiliation(s)
- Jiping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China; Department of Gastroenterology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Xue Liang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China; Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Siduo Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China
| | - Yanning Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China
| | - Liyan Shui
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China
| | - Shuangshuang Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China
| | - Huiting Guo
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China
| | - Zhengyun Xiao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China
| | - Yongchao Zhao
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China; Cancer Center, Zhejiang University, Hangzhou, China; Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China.
| | - Min Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, 310003, China.
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Bi J, Zhang C, Lu C, Mo C, Zeng J, Yao M, Jia B, Liu Z, Yuan P, Xu S. Age-related bone diseases: Role of inflammaging. J Autoimmun 2024; 143:103169. [PMID: 38340675 DOI: 10.1016/j.jaut.2024.103169] [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: 11/08/2023] [Revised: 01/03/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024]
Abstract
Bone aging is characterized by an imbalance in the physiological and pathological processes of osteogenesis, osteoclastogenesis, adipogenesis, and chondrogenesis, resulting in exacerbated bone loss and the development of age-related bone diseases, including osteoporosis, osteoarthritis, rheumatoid arthritis, and periodontitis. Inflammaging, a novel concept in the field of aging research, pertains to the persistent and gradual escalation of pro-inflammatory reactions during the aging process. This phenomenon is distinguished by its low intensity, systemic nature, absence of symptoms, and potential for management. The mechanisms by which inflammaging contribute to age-related chronic diseases, particularly in the context of age-related bone diseases, remain unclear. The precise manner in which systemic inflammation induces bone aging and consequently contributes to the development of age-related bone diseases has yet to be fully elucidated. This article primarily examines the mechanisms underlying inflammaging and its association with age-related bone diseases, to elucidate the potential mechanisms of inflammaging in age-related bone diseases and offer insights for developing preventive and therapeutic strategies for such conditions.
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Affiliation(s)
- Jiaming Bi
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Caimei Zhang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Caihong Lu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Chuzi Mo
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Jiawei Zeng
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Mingyan Yao
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China; Department of Endocrinology, Baoding No.1 Central Hospital, Baoding, China
| | - Bo Jia
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhongjun Liu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Peiyan Yuan
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China.
| | - Shuaimei Xu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China.
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Wynen F, Krautstrunk J, Müller LM, Graf V, Brinkmann V, Fritz G. Cisplatin-induced DNA crosslinks trigger neurotoxicity in C. elegans. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119591. [PMID: 37730131 DOI: 10.1016/j.bbamcr.2023.119591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023]
Abstract
The anticancer drug cisplatin (CisPt) injures post-mitotic neuronal cells, leading to neuropathy. Furthermore, CisPt triggers cell death in replicating cells. Here, we aim to unravel the relevance of different types of CisPt-induced DNA lesions for evoking neurotoxicity. To this end, we comparatively analyzed wild-type and loss of function mutants of C. elegans lacking key players of specific DNA repair pathways. Deficiency in ercc-1, which is essential for nucleotide excision repair (NER) and interstrand crosslink (ICL) repair, revealed the most pronounced enhancement in CisPt-induced neurotoxicity with respect to the functionality of post-mitotic chemosensory AWA neurons, without inducing neuronal cell death. Potentiation of CisPt-triggered neurotoxicity in ercc-1 mutants was accompanied by complex alterations in both basal and CisPt-stimulated mRNA expression of genes involved in the regulation of neurotransmission, including cat-4, tph-1, mod-1, glr-1, unc-30 and eat-18. Moreover, xpf-1, csb-1, csb-1;xpc-1 and msh-6 mutants were significantly more sensitive to CisPt-induced neurotoxicity than the wild-type, whereas xpc-1, msh-2, brc-1 and dog-1 mutants did not distinguish from the wild-type. The majority of DNA repair mutants also revealed increased basal germline apoptosis, which was analyzed for control. Yet, only xpc-1, xpc-1;csb-1 and dog-1 mutants showed elevated apoptosis in the germline following CisPt treatment. To conclude, we provide evidence that neurotoxicity, including sensory neurotoxicity, is triggered by CisPt-induced DNA intra- and interstrand crosslinks that are subject of repair by NER and ICL repair. We hypothesize that especially ERCC1/XPF, CSB and MSH6-related DNA repair protects from chemotherapy-induced neuropathy in the context of CisPt-based anticancer therapy.
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Affiliation(s)
- Fabian Wynen
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Johannes Krautstrunk
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Lisa Marie Müller
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Viktoria Graf
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Vanessa Brinkmann
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany.
| | - Gerhard Fritz
- Heinrich Heine University Düsseldorf, Medical Faculty, Institute of Toxicology, Moorenstraße 5, 40225 Düsseldorf, Germany.
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10
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Mylonas KJ, Ferenbach DA. Targeting Senescent Cells as Therapy for CKD. KIDNEY360 2024; 5:142-151. [PMID: 38049936 PMCID: PMC10833603 DOI: 10.34067/kid.0000000000000316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 11/09/2023] [Indexed: 12/06/2023]
Abstract
Senescent cells accumulate in the kidney with aging, after acute and chronic injuries, and are present in increased numbers in deteriorating kidney transplants. Senescent cells have undergone permanent cell cycle arrest and release many proinflammatory cytokines/chemokines and profibrotic factors: the senescence-associated secretory phenotype. Recent work from several groups including our own has shown that senescent cells play a causative role in progression of kidney disease. Experimental evidence also indicates that targeting senescent cells has potential to alter the renal regenerative response, reducing progressive fibrosis and improving functional recovery after injury. Research and clinical interest is focused on understanding how accumulating chronic senescent cells link acute injury to progressive fibrosis, dysfunction, and mortality in human CKD. In this review, we outline current protocols for the identification of how senescent cells are identified in vitro and in vivo . We discuss the proposed mechanisms of actions of first-generation senolytic and senomorphic agents, such as ABT-263 (navitoclax) which targets the BCL2 family of survival factors, and senomorphic agents such as metformin which targets aspects of the senescence-associated secretory phenotype. We also review that emerging technologies, such as nanocarriers, are now being developed to have safer delivery systems for senolytics, greater specificity, fewer off-target effects, and less toxicity. Other methods of senescent cell elimination being developed target various immune evasion tactics displayed by these cells. By understanding the role of senescence in kidney homeostasis and disease, developing new, targeted compounds and the tools to allow their efficacy to be charted noninvasively, it should become possible for senolytic treatments to move from the bench to bedside.
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Affiliation(s)
- Katie J Mylonas
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
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Yoon J, Kim S, Lee M, Kim Y. Mitochondrial nucleic acids in innate immunity and beyond. Exp Mol Med 2023; 55:2508-2518. [PMID: 38036728 PMCID: PMC10766607 DOI: 10.1038/s12276-023-01121-x] [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: 04/30/2023] [Revised: 08/12/2023] [Accepted: 08/23/2023] [Indexed: 12/02/2023] Open
Abstract
Mitochondria participate in a wide range of cellular processes. One essential function of mitochondria is to be a platform for antiviral signaling proteins during the innate immune response to viral infection. Recently, studies have revealed that mitochondrion-derived DNAs and RNAs are recognized as non-self molecules and act as immunogenic ligands. More importantly, the cytosolic release of these mitochondrial nucleic acids (mt-NAs) is closely associated with the pathogenesis of human diseases accompanying aberrant immune activation. The release of mitochondrial DNAs (mtDNAs) via BAX/BAK activation and/or VDAC1 oligomerization activates the innate immune response and inflammasome assembly. In addition, mitochondrial double-stranded RNAs (mt-dsRNAs) are sensed by pattern recognition receptors in the cytosol to induce type I interferon expression and initiate apoptotic programs. Notably, these cytosolic mt-NAs also mediate adipocyte differentiation and contribute to mitogenesis and mitochondrial thermogenesis. In this review, we summarize recent studies of innate immune signaling pathways regulated by mt-NAs, human diseases associated with mt-NAs, and the emerging physiological roles of mt-NAs.
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Affiliation(s)
- Jimin Yoon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sujin Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Mihye Lee
- Soonchunhyang Institute of Medi-bio Science, Soonchunhyang University, Cheonan, 31151, Republic of Korea.
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, 31151, Republic of Korea.
| | - Yoosik Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
- Graduate School of Engineering Biology, KAIST, Daejeon, 34141, Republic of Korea.
- KAIST Institute for BioCentury (KIB), KAIST, Daejeon, 34141, Republic of Korea.
- KAIST Institute for Health Science and Technology (KIHST), KAIST, Daejeon, 34141, Republic of Korea.
- BioProcess Engineering Research Center and BioInformatics Research Center, KAIST, Daejeon, 34141, Republic of Korea.
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Calabrese EJ, Selby PB. Background radiation and cancer risks: A major intellectual confrontation within the domain of radiation genetics with multiple converging biological disciplines. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2023; 20:621-632. [PMID: 37642576 DOI: 10.1080/15459624.2023.2252032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
This paper assesses the judgments of leading radiation geneticists and cancer risk assessment scientists from the mid-1950s to mid-1970s that background radiation has a significant effect on human genetic disease and cancer incidence. This assumption was adopted by the National Academy of Sciences (NAS) Biological Effects of Atomic Radiation (BEAR) I Genetics Panel for genetic diseases and subsequently applied to cancer risk assessment by other leading individuals/advisory groups (e.g., International Commission on Radiation Protection-ICRP). These recommendations assumed that a sizeable proportion of human mutations originated from background radiation due to cumulative exposure over prolonged reproductive periods and the linear nature of the dose-response. This paper shows that the assumption that background radiation is a significant cause of spontaneous mutation, genetic diseases, and cancer incidence is not supported by experimental and epidemiological findings, and discredits erroneous risk assessments that improperly influenced the recommendations of national and international advisory committees, risk assessment policies, and beliefs worldwide.
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Affiliation(s)
- Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, USA
| | - Paul B Selby
- Retired from Oak Ridge National Laboratory, Oak Ridge, TN, USA
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13
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Yousefzadeh MJ, Huerta Guevara AP, Postmus AC, Flores RR, Sano T, Jurdzinski A, Angelini L, McGowan SJ, O’Kelly RD, Wade EA, Gonzalez-Espada LV, Henessy-Wack D, Howard S, Rozgaja TA, Trussoni CE, LaRusso NF, Eggen BJ, Jonker JW, Robbins PD, Niedernhofer LJ, Kruit JK. Failure to repair endogenous DNA damage in β-cells causes adult-onset diabetes in mice. AGING BIOLOGY 2023; 1:20230015. [PMID: 38124711 PMCID: PMC10732477 DOI: 10.59368/agingbio.20230015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Age is the greatest risk factor for the development of type 2 diabetes mellitus (T2DM). Age-related decline in organ function is attributed to the accumulation of stochastic damage, including damage to the nuclear genome. Islets of T2DM patients display increased levels of DNA damage. However, whether this is a cause or consequence of the disease has not been elucidated. Here, we asked if spontaneous, endogenous DNA damage in β-cells can drive β-cell dysfunction and diabetes, via deletion of Ercc1, a key DNA repair gene, in β-cells. Mice harboring Ercc1-deficient β-cells developed adult-onset diabetes as demonstrated by increased random and fasted blood glucose levels, impaired glucose tolerance, and reduced insulin secretion. The inability to repair endogenous DNA damage led to an increase in oxidative DNA damage and apoptosis in β-cells and a significant loss of β-cell mass. Using electron microscopy, we identified β-cells in clear distress that showed an increased cell size, enlarged nuclear size, reduced number of mature insulin granules, and decreased number of mitochondria. Some β-cells were more affected than others consistent with the stochastic nature of spontaneous DNA damage. Ercc1-deficiency in β-cells also resulted in loss of β-cell function as glucose-stimulated insulin secretion and mitochondrial function were impaired in islets isolated from mice harboring Ercc1-deficient β-cells. These data reveal that unrepaired endogenous DNA damage is sufficient to drive β-cell dysfunction and provide a mechanism by which age increases the risk of T2DM.
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Affiliation(s)
- Matthew J. Yousefzadeh
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Ana P. Huerta Guevara
- Department of Pediatrics, Section Molecular Metabolism and Nutrition, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Andrea C. Postmus
- Department of Pediatrics, Section Molecular Metabolism and Nutrition, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Rafael R. Flores
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Tokio Sano
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
| | - Angelika Jurdzinski
- Department of Pediatrics, Section Molecular Metabolism and Nutrition, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Luise Angelini
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Sara J. McGowan
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Ryan D. O’Kelly
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Erin A. Wade
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
| | - Lisa V. Gonzalez-Espada
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
| | - Danielle Henessy-Wack
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
| | - Shannon Howard
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
| | - Tania A. Rozgaja
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
| | - Christy E. Trussoni
- Division of Gastroenterology and Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN 55905, USA
| | - Nicholas F. LaRusso
- Division of Gastroenterology and Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN 55905, USA
| | - Bart J.L. Eggen
- Department of Biomedical Sciences of Cells and Systems, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Johan W. Jonker
- Department of Pediatrics, Section Molecular Metabolism and Nutrition, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Paul D. Robbins
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Laura J. Niedernhofer
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute, 130 Scripps Way #3B3, Jupiter FL, 33458, USA
- Department of Biochemistry, Molecular Biology and Biophysics and Institute on the Biology of Aging and Metabolism, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
| | - Janine K. Kruit
- Department of Pediatrics, Section Molecular Metabolism and Nutrition, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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14
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Grun LK, Maurmann RM, Scholl JN, Fogaça ME, Schmitz CRR, Dias CK, Gasparotto J, Padoin AV, Mottin CC, Klamt F, Figueiró F, Jones MH, Filippi-Chiela EC, Guma FCR, Barbé-Tuana FM. Obesity drives adipose-derived stem cells into a senescent and dysfunctional phenotype associated with P38MAPK/NF-KB axis. Immun Ageing 2023; 20:51. [PMID: 37821967 PMCID: PMC10566105 DOI: 10.1186/s12979-023-00378-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/19/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND Adipose-derived stem cells (ADSC) are multipotent cells implicated in tissue homeostasis. Obesity represents a chronic inflammatory disease associated with metabolic dysfunction and age-related mechanisms, with progressive accumulation of senescent cells and compromised ADSC function. In this study, we aimed to explore mechanisms associated with the inflammatory environment present in obesity in modulating ADSC to a senescent phenotype. We evaluated phenotypic and functional alterations through 18 days of treatment. ADSC were cultivated with a conditioned medium supplemented with a pool of plasma from eutrophic individuals (PE, n = 15) or with obesity (PO, n = 14), and compared to the control. RESULTS Our results showed that PO-treated ADSC exhibited decreased proliferative capacity with G2/M cycle arrest and CDKN1A (p21WAF1/Cip1) up-regulation. We also observed increased senescence-associated β-galactosidase (SA-β-gal) activity, which was positively correlated with TRF1 protein expression. After 18 days, ADSC treated with PO showed augmented CDKN2A (p16INK4A) expression, which was accompanied by a cumulative nuclear enlargement. After 10 days, ADSC treated with PO showed an increase in NF-κB phosphorylation, while PE and PO showed an increase in p38MAPK activation. PE and PO treatment also induced an increase in senescence-associated secretory phenotype (SASP) cytokines IL-6 and IL-8. PO-treated cells exhibited decreased metabolic activity, reduced oxygen consumption related to basal respiration, increased mitochondrial depolarization and biomass, and mitochondrial network remodeling, with no superoxide overproduction. Finally, we observed an accumulation of lipid droplets in PO-treated ADSC, implying an adaptive cellular mechanism induced by the obesogenic stimuli. CONCLUSIONS Taken together, our data suggest that the inflammatory environment observed in obesity induces a senescent phenotype associated with p38MAPK/NF-κB axis, which stimulates and amplifies the SASP and is associated with impaired mitochondrial homeostasis.
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Affiliation(s)
- L K Grun
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
| | - R M Maurmann
- Graduate Program in Cellular and Molecular Biology, School of Health, Sciences, and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - J N Scholl
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - M E Fogaça
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - C R R Schmitz
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - C K Dias
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - J Gasparotto
- Institute of Biomedical Sciences, Federal University at Alfenas, Alfenas, Brazil
| | - A V Padoin
- Graduate Program in Medicine and Health Sciences, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - C C Mottin
- Graduate Program in Medicine and Health Sciences, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - F Klamt
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - F Figueiró
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - M H Jones
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - E C Filippi-Chiela
- Institute of Basic Health Sciences, Department of Morphological Sciences, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Center for Biotechnology, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - F C R Guma
- Graduate Program in Biological Sciences: Biochemistry, Federal University at Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - F M Barbé-Tuana
- Graduate Program in Pediatrics and Child Health, School of Medicine, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Graduate Program in Cellular and Molecular Biology, School of Health, Sciences, and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
- Group of Inflammation and Cellular Senescence, Immunobiology Laboratory, School of Health Sciences and Life, Pontifical Catholic University at Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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15
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Zhang X, Tyrrell DJ, Alliston T, Schilling B, Yousefzadeh MJ, Schafer MJ. Senescence and Inflammation: Summary of a Gerontological Society of America and National Institute on Aging-Sponsored Symposium. J Gerontol A Biol Sci Med Sci 2023; 78:1733-1739. [PMID: 37148367 PMCID: PMC10562889 DOI: 10.1093/gerona/glad120] [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: 01/26/2023] [Indexed: 05/08/2023] Open
Abstract
The National Institute on Aging sponsored a symposium at the Gerontological Society of America (GSA) annual meeting in Indianapolis, Indiana, to discuss recent discoveries related to senescent and inflammatory mechanisms in aging and disease. Consistent with the 2022 Biological Sciences GSA program led by Dr. Rozalyn Anderson, the symposium featured early-stage investigators and a leader in the field of geroscience research. Cell senescence and immune interactions coordinate homeostatic and protective programming throughout the life span. Dysfunctional communication in this exchange eventuates in inflammation-related compositional changes in aged tissues, including propagation of the senescence-associated secretory phenotype and accumulation of senescent and exhausted immune cells. Presentations in this symposium explored senescent and immune-related dysfunction in aging from diverse viewpoints and featured emerging cellular and molecular methods. A central takeaway from the event was that the use of new models and approaches, including single-cell -omics, novel mouse models, and 3D culture systems, is revealing dynamic properties and interactions of senescent and immune cell fates. This knowledge is critical for devising new therapeutic approaches with important translational relevance.
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Affiliation(s)
- Xu Zhang
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel J Tyrrell
- Division of Molecular and Cellular Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Tamara Alliston
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California, USA
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California, USA
| | - Birgit Schilling
- The Buck Institute for Research on Aging, Novato, California, USA
| | - Matthew J Yousefzadeh
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Marissa J Schafer
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
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16
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Shi Y, Li H, Chu D, Lin W, Wang X, Wu Y, Li K, Wang H, Li D, Xu Z, Gao L, Li B, Chen H. Rescuing Nucleus Pulposus Cells From Senescence via Dual-Functional Greigite Nanozyme to Alleviate Intervertebral Disc Degeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300988. [PMID: 37400370 PMCID: PMC10477883 DOI: 10.1002/advs.202300988] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/23/2023] [Indexed: 07/05/2023]
Abstract
High levels of reactive oxygen species (ROS) lead to progressive deterioration of mitochondrial function, resulting in tissue degeneration. In this study, ROS accumulation induced nucleus pulposus cells (NPCs) senescence is observed in degenerative human and rat intervertebral disc, suggesting senescence as a new therapeutic target to reverse intervertebral disc degeneration (IVDD). By targeting this, dual-functional greigite nanozyme is successfully constructed, which shows the ability to release abundant polysulfides and presents strong superoxide dismutase and catalase activities, both of which function to scavenge ROS and maintain the tissue at physical redox level. By significantly lowering the ROS level, greigite nanozyme rescues damaged mitochondrial function in IVDD models both in vitro and in vivo, rescues NPCs from senescence and alleviated the inflammatory response. Furthermore, RNA-sequencing reveals ROS-p53-p21 axis is responsible for cellular senescence-induced IVDD. Activation of the axis abolishes greigite nanozyme rescued NPCs senescence phenotype, as well as the alleviated inflammatory response to greigite nanozyme, which confirms the role of ROS-p53-p21 axis in greigite nanozyme's function to reverse IVDD. In conclusion, this study demonstrates that ROS-induced NPCs senescence leads to IVDD and the dual-functional greigite nanozyme holds strong potential to reverse this process, providing a novel strategy for IVDD management.
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Affiliation(s)
- Yu Shi
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Hanwen Li
- Orthopedic InstituteDepartment of Orthopedic SurgeryFirst Affiliated HospitalSuzhou Medical CollegeSoochow UniversityNo. 899 Pinghai RoadSuzhou215000P. R. China
| | - Dongchuan Chu
- Department of RadiologyAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
| | - Wenzheng Lin
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Xinglong Wang
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Yin Wu
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Ke Li
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Huihui Wang
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Dandan Li
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Zhuobin Xu
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
- Institute of Translational MedicineMedical CollegeYangzhou UniversityNo.136 Jiangyang RoadYangzhou215000P. R. China
| | - Lizeng Gao
- CAS Engineering Laboratory for NanozymeInstitute of BiophysicsChinese Academy of SciencesNo. 15 Datun RoadBeijing100101P. R. China
| | - Bin Li
- Orthopedic InstituteDepartment of Orthopedic SurgeryFirst Affiliated HospitalSuzhou Medical CollegeSoochow UniversityNo. 899 Pinghai RoadSuzhou215000P. R. China
| | - Hao Chen
- Department of OrthopedicsAffiliated Hospital of Yangzhou UniversityNo. 368 Hanjiang RoadYangzhou225000P. R. China
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17
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Kubat GB, Bouhamida E, Ulger O, Turkel I, Pedriali G, Ramaccini D, Ekinci O, Ozerklig B, Atalay O, Patergnani S, Nur Sahin B, Morciano G, Tuncer M, Tremoli E, Pinton P. Mitochondrial dysfunction and skeletal muscle atrophy: Causes, mechanisms, and treatment strategies. Mitochondrion 2023; 72:33-58. [PMID: 37451353 DOI: 10.1016/j.mito.2023.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 07/02/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Skeletal muscle, which accounts for approximately 40% of total body weight, is one of the most dynamic and plastic tissues in the human body and plays a vital role in movement, posture and force production. More than just a component of the locomotor system, skeletal muscle functions as an endocrine organ capable of producing and secreting hundreds of bioactive molecules. Therefore, maintaining healthy skeletal muscles is crucial for supporting overall body health. Various pathological conditions, such as prolonged immobilization, cachexia, aging, drug-induced toxicity, and cardiovascular diseases (CVDs), can disrupt the balance between muscle protein synthesis and degradation, leading to skeletal muscle atrophy. Mitochondrial dysfunction is a major contributing mechanism to skeletal muscle atrophy, as it plays crucial roles in various biological processes, including energy production, metabolic flexibility, maintenance of redox homeostasis, and regulation of apoptosis. In this review, we critically examine recent knowledge regarding the causes of muscle atrophy (disuse, cachexia, aging, etc.) and its contribution to CVDs. Additionally, we highlight the mitochondrial signaling pathways involvement to skeletal muscle atrophy, such as the ubiquitin-proteasome system, autophagy and mitophagy, mitochondrial fission-fusion, and mitochondrial biogenesis. Furthermore, we discuss current strategies, including exercise, mitochondria-targeted antioxidants, in vivo transfection of PGC-1α, and the potential use of mitochondrial transplantation as a possible therapeutic approach.
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Affiliation(s)
- Gokhan Burcin Kubat
- Department of Mitochondria and Cellular Research, Gulhane Health Sciences Institute, University of Health Sciences, 06010 Ankara, Turkey.
| | - Esmaa Bouhamida
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy
| | - Oner Ulger
- Department of Mitochondria and Cellular Research, Gulhane Health Sciences Institute, University of Health Sciences, 06010 Ankara, Turkey
| | - Ibrahim Turkel
- Department of Exercise and Sport Sciences, Faculty of Sport Sciences, Hacettepe University, 06800 Ankara, Turkey
| | - Gaia Pedriali
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy
| | - Daniela Ramaccini
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy
| | - Ozgur Ekinci
- Department of Pathology, Gazi University, 06500 Ankara, Turkey
| | - Berkay Ozerklig
- Department of Exercise and Sport Sciences, Faculty of Sport Sciences, Hacettepe University, 06800 Ankara, Turkey
| | - Ozbeyen Atalay
- Department of Physiology, Faculty of Medicine, Hacettepe University, 06230 Ankara, Turkey
| | - Simone Patergnani
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy; Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | - Beyza Nur Sahin
- Department of Physiology, Faculty of Medicine, Hacettepe University, 06230 Ankara, Turkey
| | - Giampaolo Morciano
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy; Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | - Meltem Tuncer
- Department of Physiology, Faculty of Medicine, Hacettepe University, 06230 Ankara, Turkey
| | - Elena Tremoli
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy
| | - Paolo Pinton
- Translational Research Center, Maria Cecilia Hospital GVM Care & Research, 48033 Cotignola, Italy; Department of Medical Sciences, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy.
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18
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Borgini M, Wipf P. Synthesis of Veliparib Prodrugs and Determination of Drug-Release-Dependent PARP-1 Inhibition. ACS Med Chem Lett 2023; 14:652-657. [PMID: 37197461 PMCID: PMC10184315 DOI: 10.1021/acsmedchemlett.3c00065] [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: 02/23/2023] [Accepted: 04/20/2023] [Indexed: 05/19/2023] Open
Abstract
Poly(ADP-ribose) polymerase (PARP) plays a key role in repairing DNA damage, and several PARP inhibitors have been approved as treatments in BRCA1/2 mutated breast and ovarian cancers. Mounting evidence also supports their application as neuroprotective agents since PARP overactivation compromises the mitochondrial homeostasis by consumption of NAD+ reserves, leading to an increase in reactive oxygen and nitrogen species and a spike in intracellular Ca2+ levels. Herein, we present the synthesis and preliminary evaluation of new mitochondria-targeting PARP inhibitor prodrugs of (±)-veliparib, with the goal to advance potential neuroprotective properties without impairing the repair of damaged DNA in the nucleus.
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19
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Calabrese EJ, Dhawan G, Kapoor R, Agathokleous E, Calabrese V. Rhodiola rosea and Salidroside commonly induce hormesis, with particular focus on longevity and neuroprotection. Chem Biol Interact 2023; 380:110540. [PMID: 37169278 DOI: 10.1016/j.cbi.2023.110540] [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: 03/28/2023] [Revised: 04/28/2023] [Accepted: 05/09/2023] [Indexed: 05/13/2023]
Abstract
The biological effects of Rhodiola rosea extracts and one of its major constituents, Salidroside, were evaluated for their capacity to induce hormesis/hormetic effects. The findings indicate that the Rhodiola rosea extracts and Salidroside commonly induce hormetic dose responses within a broad range of biological models, cell types and across a broad range of endpoints, with particular emphasis on longevity and neuroprotective endpoints. This paper represents the first integrative documentation and assessment of Rhodiola rosea extracts and Salidroside induction of hormetic effects. These findings have important biomedical applications and should have an important impact with respect to critical study design, dose selection and other experimental features.
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Affiliation(s)
- Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA.
| | | | - Rachna Kapoor
- Saint Francis Hospital and Medical Center, Hartford, CT, USA.
| | - Evgenios Agathokleous
- Department of Ecology, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine University of Catania, Via Santa Sofia 97, Catania, 95123, Italy.
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20
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Airik M, Arbore H, Childs E, Huynh AB, Phua YL, Chen CW, Aird K, Bharathi S, Zhang B, Conlon P, Kmoch S, Kidd K, Bleyer AJ, Vockley J, Goetzman E, Wipf P, Airik R. Mitochondrial ROS Triggers KIN Pathogenesis in FAN1-Deficient Kidneys. Antioxidants (Basel) 2023; 12:900. [PMID: 37107275 PMCID: PMC10135478 DOI: 10.3390/antiox12040900] [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: 02/28/2023] [Revised: 04/02/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
Karyomegalic interstitial nephritis (KIN) is a genetic adult-onset chronic kidney disease (CKD) characterized by genomic instability and mitotic abnormalities in the tubular epithelial cells. KIN is caused by recessive mutations in the FAN1 DNA repair enzyme. However, the endogenous source of DNA damage in FAN1/KIN kidneys has not been identified. Here we show, using FAN1-deficient human renal tubular epithelial cells (hRTECs) and FAN1-null mice as a model of KIN, that FAN1 kidney pathophysiology is triggered by hypersensitivity to endogenous reactive oxygen species (ROS), which cause chronic oxidative and double-strand DNA damage in the kidney tubular epithelial cells, accompanied by an intrinsic failure to repair DNA damage. Furthermore, persistent oxidative stress in FAN1-deficient RTECs and FAN1 kidneys caused mitochondrial deficiencies in oxidative phosphorylation and fatty acid oxidation. The administration of subclinical, low-dose cisplatin increased oxidative stress and aggravated mitochondrial dysfunction in FAN1-deficient kidneys, thereby exacerbating KIN pathophysiology. In contrast, treatment of FAN1 mice with a mitochondria-targeted ROS scavenger, JP4-039, attenuated oxidative stress and accumulation of DNA damage, mitigated tubular injury, and preserved kidney function in cisplatin-treated FAN1-null mice, demonstrating that endogenous oxygen stress is an important source of DNA damage in FAN1-deficient kidneys and a driver of KIN pathogenesis. Our findings indicate that therapeutic modulation of kidney oxidative stress may be a promising avenue to mitigate FAN1/KIN kidney pathophysiology and disease progression in patients.
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Affiliation(s)
- Merlin Airik
- Division of Nephrology, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Haley Arbore
- Division of Nephrology, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Elizabeth Childs
- Division of Nephrology, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Amy B. Huynh
- Division of Nephrology, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Yu Leng Phua
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Chi Wei Chen
- Department of Pharmacology & Chemical Biology and UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Katherine Aird
- Department of Pharmacology & Chemical Biology and UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Sivakama Bharathi
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Bob Zhang
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Peter Conlon
- Nephrology Department, Beaumont Hospital, D09 V2N0 Dublin, Ireland
| | - Stanislav Kmoch
- Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, 128 08 Prague, Czech Republic
| | - Kendrah Kidd
- Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | | | - Jerry Vockley
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Eric Goetzman
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine and UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Rannar Airik
- Division of Nephrology, Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA 15224, USA
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21
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Henpita C, Vyas R, Healy CL, Kieu TL, Gurkar AU, Yousefzadeh MJ, Cui Y, Lu A, Angelini LA, O'Kelly RD, McGowan SJ, Chandrasekhar S, Vanderpool RR, Hennessy‐Wack D, Ross MA, Bachman TN, McTiernan C, Pillai SPS, Ladiges W, Lavasani M, Huard J, Beer‐Stolz D, St. Croix CM, Watkins SC, Robbins PD, Mora AL, Kelley EE, Wang Y, O'Connell TD, Niedernhofer LJ. Loss of DNA repair mechanisms in cardiac myocytes induce dilated cardiomyopathy. Aging Cell 2023; 22:e13782. [PMID: 36734200 PMCID: PMC10086531 DOI: 10.1111/acel.13782] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 12/06/2022] [Accepted: 12/19/2022] [Indexed: 02/04/2023] Open
Abstract
Cardiomyopathy is a progressive disease of the myocardium leading to impaired contractility. Genotoxic cancer therapies are known to be potent drivers of cardiomyopathy, whereas causes of spontaneous disease remain unclear. To test the hypothesis that endogenous genotoxic stress contributes to cardiomyopathy, we deleted the DNA repair gene Ercc1 specifically in striated muscle using a floxed allele of Ercc1 and mice expressing Cre under control of the muscle-specific creatinine kinase (Ckmm) promoter or depleted systemically (Ercc1-/D mice). Ckmm-Cre+/- ;Ercc1-/fl mice expired suddenly of heart disease by 7 months of age. As young adults, the hearts of Ckmm-Cre+/- ;Ercc1-/fl mice were structurally and functionally normal, but by 6-months-of-age, there was significant ventricular dilation, wall thinning, interstitial fibrosis, and systolic dysfunction indicative of dilated cardiomyopathy. Cardiac tissue from the tissue-specific or systemic model showed increased apoptosis and cardiac myocytes from Ckmm-Cre+/- ;Ercc1-/fl mice were hypersensitive to genotoxins, resulting in apoptosis. p53 levels and target gene expression, including several antioxidants, were increased in cardiac tissue from Ckmm-Cre+/- ;Ercc1-/fl and Ercc1-/D mice. Despite this, cardiac tissue from older mutant mice showed evidence of increased oxidative stress. Genetic or pharmacologic inhibition of p53 attenuated apoptosis and improved disease markers. Similarly, overexpression of mitochondrial-targeted catalase improved disease markers. Together, these data support the conclusion that DNA damage produced endogenously can drive cardiac disease and does so mechanistically via chronic activation of p53 and increased oxidative stress, driving cardiac myocyte apoptosis, dilated cardiomyopathy, and sudden death.
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Affiliation(s)
- Chathurika Henpita
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Rajesh Vyas
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Chastity L. Healy
- Department of Integrative Biology and PhysiologyUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Tra L. Kieu
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Aditi U. Gurkar
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
- Division of Geriatric Medicine, Aging InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Matthew J. Yousefzadeh
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Yuxiang Cui
- Department of ChemistryUniversity of California, RiversideRiversideCaliforniaUSA
| | - Aiping Lu
- Department of Orthopedic SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Steadman Philippon Research InstituteVailColoradoUSA
| | - Luise A. Angelini
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Ryan D. O'Kelly
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Sara J. McGowan
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Sanjay Chandrasekhar
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Rebecca R. Vanderpool
- Division of Cardiology, Heart and Vascular InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Danielle Hennessy‐Wack
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Mark A. Ross
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Timothy N. Bachman
- Division of Pulmonary, Allergy, and Critical Care MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Charles McTiernan
- Division of Cardiology, Heart and Vascular InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | | | - Warren Ladiges
- Department of Comparative MedicineUniversity of WashingtonSeattleWashingtonUSA
| | - Mitra Lavasani
- Department of Orthopedic SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Physical Medicine and RehabilitationNorthwestern University and Shirley Ryan Ability LabChicagoIllinoisUSA
| | - Johnny Huard
- Department of Orthopedic SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Steadman Philippon Research InstituteVailColoradoUSA
| | - Donna Beer‐Stolz
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Cell BiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Claudette M. St. Croix
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Cell BiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Simon C. Watkins
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Cell BiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Paul D. Robbins
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Ana L. Mora
- Division of Pulmonary, Allergy, and Critical Care MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
- Division of Pulmonary, Critical Care and Sleep Medicine, College of MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Eric E. Kelley
- Department of Physiology and PharmacologyWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Yinsheng Wang
- Department of ChemistryUniversity of California, RiversideRiversideCaliforniaUSA
| | - Timothy D. O'Connell
- Department of Integrative Biology and PhysiologyUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Laura J. Niedernhofer
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
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22
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Glycyrrhizic acid inhibits myeloid differentiation of hematopoietic stem cells by binding S100 calcium binding protein A8 to improve cognition in aged mice. Immun Ageing 2023; 20:12. [PMID: 36906583 PMCID: PMC10007777 DOI: 10.1186/s12979-023-00337-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/03/2023] [Indexed: 03/13/2023]
Abstract
BACKGROUND Glycyrrhizic acid (GA), a saponin compound often used as a flavoring agent, can elicit anti-inflammatory and anti-tumor effects, and alleviate aging. However, the specific mechanism by which GA alters immune cell populations to produce these beneficial effects is currently unclear. RESULTS In this study, we systematically analyzed single-cell sequencing data of peripheral blood mononuclear cells from young mice, aged mice, and GA-treated aged mice. Our in vivo results show that GA reduced senescence-induced increases in macrophages and neutrophils, and increased numbers of lymphoid lineage subpopulations specifically reduced by senescence. In vitro, GA significantly promoted differentiation of Lin-CD117+ hematopoietic stem cells toward lymphoid lineages, especially CD8+ T cells. Moreover, GA inhibited differentiation of CD4+ T cells and myeloid (CD11b+) cells by binding to S100 calcium-binding protein 8 (S100A8) protein. Overexpression of S100A8 in Lin- CD117+ hematopoietic stem cells enhanced cognition in aged mice and the immune reconstitution of severely immunodeficient B-NDG (NOD.CB17-Prkdcscid/l2rgtm1/Bcgen) mice. CONCLUSIONS Collectively, GA exerts anti-aging effects by binding to S100A8 to remodel the immune system of aged mice.
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23
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Aguilar-Hernández L, Alejandre R, César Morales-Medina J, Iannitti T, Flores G. Cellular mechanisms in brain aging: Focus on physiological and pathological aging. J Chem Neuroanat 2023; 128:102210. [PMID: 36496000 DOI: 10.1016/j.jchemneu.2022.102210] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 11/28/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Aging is a natural phenomenon characterized by accumulation of cellular damage and debris. Oxidative stress, cellular senescence, sustained inflammation, and DNA damage are the main cellular processes characteristic of aging associated with morphological and functional decline. These effects tend to be more pronounced in tissues with high metabolic rates such as the brain, mainly in regions such as the prefrontal cortex, hippocampus, and amygdala. These regions are highly related to cognitive behavior, and therefore their atrophy usually leads to decline in processes such as memory and learning. These cognitive declines can occur in physiological aging and are exacerbated in pathological aging. In this article, we review the cellular processes that underlie the triggers of aging and how they relate to one another, causing the atrophy of nerve tissue that is typical of aging. The main topic of this review to determine the central factor that triggers all the cellular processes that lead to cellular aging and discriminate between normal and pathological aging. Finally, we review how the use of supplements with antioxidant and anti-inflammatory properties reduces the cognitive decline typical of aging, which reinforces the hypothesis of oxidative stress and cellular damage as contributors of physiological atrophy of aging. Moreover, cumulative evidence suggests their possible use as therapies, which improve the aging population's quality of life.
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Affiliation(s)
- Leonardo Aguilar-Hernández
- Lab. Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 Sur 6301, San Manuel 72570, Puebla, Mexico; Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Ricardo Alejandre
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Julio César Morales-Medina
- Centro de Investigación en Reproducción Animal, CINVESTAV-Universidad Autónoma de Tlaxcala, AP 62, CP 90000 Tlaxcala, Mexico
| | - Tommaso Iannitti
- University of Ferrara, Department of Medical Sciences, Section of Experimental Medicine, Via Fossato di Mortara 70, 44121 Ferrara, Italy
| | - Gonzalo Flores
- Lab. Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 Sur 6301, San Manuel 72570, Puebla, Mexico.
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24
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Martini H, Passos JF. Cellular senescence: all roads lead to mitochondria. FEBS J 2023; 290:1186-1202. [PMID: 35048548 PMCID: PMC9296701 DOI: 10.1111/febs.16361] [Citation(s) in RCA: 77] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/11/2022] [Accepted: 01/18/2022] [Indexed: 01/10/2023]
Abstract
Senescence is a multi-functional cell fate, characterized by an irreversible cell-cycle arrest and a pro-inflammatory phenotype, commonly known as the senescence-associated secretory phenotype (SASP). Emerging evidence indicates that accumulation of senescent cells in multiple tissues drives tissue dysfunction and several age-related conditions. This has spurred the academic community and industry to identify new therapeutic interventions targeting this process. Mitochondrial dysfunction is an often-unappreciated hallmark of cellular senescence which plays important roles not only in the senescence growth arrest but also in the development of the SASP and resistance to cell-death. Here, we review the evidence that supports a role for mitochondria in the development of senescence and describe the underlying mechanisms. Finally, we propose that a detailed road map of mitochondrial biology in senescence will be crucial to guide the future development of senotherapies.
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Affiliation(s)
- Hélène Martini
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905 USA
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, 55905 USA
| | - João F. Passos
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, 55905 USA
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, 55905 USA
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25
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MacCann R, Landay AL, Mallon PWG. HIV and comorbidities - the importance of gut inflammation and the kynurenine pathway. Curr Opin HIV AIDS 2023; 18:102-110. [PMID: 36722199 PMCID: PMC7614535 DOI: 10.1097/coh.0000000000000782] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE OF REVIEW The purpose of this article is to review alterations in microbiota composition, diversity, and functional features in the context of chronic inflammation and comorbidities associated with HIV infection. RECENT FINDINGS The gut microbiome is an important mediator of host immunity, and disruption of gut homeostasis can contribute to both systemic inflammation and immune activation. Ageing and HIV share features of intestinal damage, microbial translocation and alterations in bacterial composition that contribute to a proinflammatory state and development of age-related comorbidities. One such inflammatory pathway reviewed is the nicotinamide adenine dinucleotide (NAD+) producing kynurenine pathway (KP). Kynurenine metabolites regulate many biological processes including host-microbiome communication, immunity and oxidative stress and the KP in turn is influenced by the microbiome environment. Age-associated decline in NAD+ is implicated as a driving factor in many age-associated diseases, including those seen in people with HIV (PWH). Recent studies have shown that KP can influence metabolic changes in PWH, including increased abdominal adiposity and cardiovascular disease. Furthermore, KP activity increases with age in the general population, but it is elevated in PWH at all ages compared to age-matched controls. Host or microbiome-mediated targeting of this pathway has merits to increase healthy longevity and has potential therapeutic applications in PWH. SUMMARY As a growing proportion of PWH age, many face increased risks of developing age-related comorbidities. Chronic inflammation, a pillar of geroscience, the science of ageing and of age-related disease, is influenced by the gut microbiome and its metabolites. Combined, these contribute to a systemic inflammatory signature. Advances in geroscience-based approaches and therapeutics offer a novel paradigm for addressing age-related diseases and chronic inflammation in HIV infection. Whether targeted inhibition of KP activity alleviates pathological conditions or promotes successful ageing in PWH remains to be determined.
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Affiliation(s)
- Rachel MacCann
- UCD Centre for Experimental Pathogen Host Research (CEPHR), School of Medicine, University College Dublin
- St Vincents University Hospital, Elm Park, Dublin 4, Ireland
| | - Alan L Landay
- Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Patrick W G Mallon
- UCD Centre for Experimental Pathogen Host Research (CEPHR), School of Medicine, University College Dublin
- St Vincents University Hospital, Elm Park, Dublin 4, Ireland
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26
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Gao H, Zhou F, Li R, Yuan J, Ye L. E2F1 inhibits cellular senescence and promotes oxaliplatin resistance in colorectal cancer. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:185. [PMID: 36923082 PMCID: PMC10009566 DOI: 10.21037/atm-22-4054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/18/2022] [Indexed: 02/18/2023]
Abstract
Background Doctors have always been overwhelmed by tumor drug resistance because it is a major challenge in the clinical treatment of tumors. Cellular senescence has a strong relationship with the development of tumor drug resistance. Herein, we aimed to explore new regulatory factors involved in the aging process of colorectal cancer (CRC) cells and assess the effect of cellular senescence on CRC drug resistance. Methods Genes associated with cellular senescence for anticipating regulatory factors were first used, and the regulatory molecules of survival significance were then identified based on the results of public database analysis. The effects of E2F translation factor 1 (E2F1) on CRC cell viability, invasion, migration, and cellular senescence processes were assessed through 3-(4,5)-dimethylthiahiazo(-z-y1)-3,5-di-phenytetrazoliumromide (MTT), 5-Ethynyl-2'-deoxyuridine (EdU), Transwell, scar repairining, β-galactosidase staining, and cell immunofluorescence assays, respectively. Overexpression or silencing plasmids were used for transfecting HCT116 or OXA-HCT116 to assess the effect of E2F1 on the senescence process and drug resistance in CRC cells. Results On combining the database analysis results with those of our studies, we found that E2F1 was a critical regulator of cellular senescence in CRC. In the in vitro experiments, the E2F1 overexpression significantly stimulated the proliferation, invasion, and migration of CRC cells and even reduced oxaliplatin-induced senescence, further enhancing their resistance to oxaliplatin. Conversely, the tumorigenesis of colorectal cancer was repressed after the suppression of E2F1. Furthermore, CRC cells, which were otherwise resistant to oxaliplatin, also showed senescent phenotypes. Conclusions Our results suggest that E2F1 suppresses the aging of CRC cells and tumor cells develop resistance to oxaliplatin through high E2F1 expression. Moreover, E2F1 may act as a possible target for oxaliplatin resistance studies.
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Affiliation(s)
- Haiyang Gao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fangyuan Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Runze Li
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiao Yuan
- Department of Biospecimen Centre, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Ye
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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27
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Gyenis A, Chang J, Demmers JJPG, Bruens ST, Barnhoorn S, Brandt RMC, Baar MP, Raseta M, Derks KWJ, Hoeijmakers JHJ, Pothof J. Genome-wide RNA polymerase stalling shapes the transcriptome during aging. Nat Genet 2023; 55:268-279. [PMID: 36658433 PMCID: PMC9925383 DOI: 10.1038/s41588-022-01279-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 12/07/2022] [Indexed: 01/21/2023]
Abstract
Gene expression profiling has identified numerous processes altered in aging, but how these changes arise is largely unknown. Here we combined nascent RNA sequencing and RNA polymerase II chromatin immunoprecipitation followed by sequencing to elucidate the underlying mechanisms triggering gene expression changes in wild-type aged mice. We found that in 2-year-old liver, 40% of elongating RNA polymerases are stalled, lowering productive transcription and skewing transcriptional output in a gene-length-dependent fashion. We demonstrate that this transcriptional stress is caused by endogenous DNA damage and explains the majority of gene expression changes in aging in most mainly postmitotic organs, specifically affecting aging hallmark pathways such as nutrient sensing, autophagy, proteostasis, energy metabolism, immune function and cellular stress resilience. Age-related transcriptional stress is evolutionary conserved from nematodes to humans. Thus, accumulation of stochastic endogenous DNA damage during aging deteriorates basal transcription, which establishes the age-related transcriptome and causes dysfunction of key aging hallmark pathways, disclosing how DNA damage functionally underlies major aspects of normal aging.
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Affiliation(s)
- Akos Gyenis
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
- University of Cologne, Faculty of Medicine, Cluster of Excellence for Aging Research, Institute for Genome Stability in Ageing and Disease, Cologne, Germany
| | - Jiang Chang
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Joris J P G Demmers
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Serena T Bruens
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Sander Barnhoorn
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Renata M C Brandt
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Marjolein P Baar
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marko Raseta
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Kasper W J Derks
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Clinical Genetics and School for Oncology & Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jan H J Hoeijmakers
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
- University of Cologne, Faculty of Medicine, Cluster of Excellence for Aging Research, Institute for Genome Stability in Ageing and Disease, Cologne, Germany
- Princess Maxima Center for Pediatric Oncology, Oncode Institute, Utrecht, The Netherlands
| | - Joris Pothof
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands.
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28
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Shvedova M, Samdavid Thanapaul RJR, Thompson EL, Niedernhofer LJ, Roh DS. Cellular Senescence in Aging, Tissue Repair, and Regeneration. Plast Reconstr Surg 2022; 150:4S-11S. [PMID: 36170430 PMCID: PMC9529244 DOI: 10.1097/prs.0000000000009667] [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] [Indexed: 11/25/2022]
Abstract
SUMMARY Society and our healthcare system are facing unprecedented challenges due to the expansion of the older population. As plastic surgeons, we can improve care of our older patients through understanding the mechanisms of aging that inevitably impact their outcomes and well-being. One of the major hallmarks of aging, cellular senescence, has recently become the focus of vigorous research in academia and industry. Senescent cells, which are metabolically active but in a state of stable cell cycle arrest, are implicated in causing aging and numerous age-related diseases. Further characterization of the biology of senescence revealed that it can be both detrimental and beneficial to organisms depending on tissue context and senescence chronicity. Here, we review the role of cellular senescence in aging, wound healing, tissue regeneration, and other domains relevant to plastic surgery. We also review the current state of research on therapeutics that modulate senescence to improve conditions of aging.
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Affiliation(s)
- Maria Shvedova
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Boston University School of Medicine; and Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota Medical School
| | - Rex Jeya Rajkumar Samdavid Thanapaul
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Boston University School of Medicine; and Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota Medical School
| | - Elizabeth L Thompson
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Boston University School of Medicine; and Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota Medical School
| | - Laura J Niedernhofer
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Boston University School of Medicine; and Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota Medical School
| | - Daniel S Roh
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, Boston University School of Medicine; and Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota Medical School
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Abstract
Over the course of a human lifespan, genome integrity erodes, leading to an increased abundance of several types of chromatin changes. The abundance of DNA lesions (chemical perturbations to nucleotides) increases with age, as does the number of genomic mutations and transcriptional disruptions caused by replication or transcription of those lesions, respectively. At the epigenetic level, precise DNA methylation patterns degrade, likely causing increasingly stochastic variations in gene expression. Similarly, the tight regulation of histone modifications begins to unravel. The genomic instability caused by these mechanisms allows transposon element reactivation and remobilization, further mutations, gene dysregulation, and cytoplasmic chromatin fragments. This cumulative genomic instability promotes cell signaling events that drive cell fate decisions and extracellular communications known to disrupt tissue homeostasis and regeneration. In this Review, we focus on age-related epigenetic changes and their interactions with age-related genomic changes that instigate these events.
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Affiliation(s)
- Carolina Soto-Palma
- Institute on the Biology of Aging and Metabolism
- Department of Biochemistry, Molecular Biology, and Biophysics
| | - Laura J. Niedernhofer
- Institute on the Biology of Aging and Metabolism
- Department of Biochemistry, Molecular Biology, and Biophysics
| | - Christopher D. Faulk
- Institute on the Biology of Aging and Metabolism
- Department of Animal Science, and
| | - Xiao Dong
- Institute on the Biology of Aging and Metabolism
- Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, Minnesota, USA
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Quantitative proteomics to study aging in rabbit spleen tissues. Exp Gerontol 2022; 167:111908. [PMID: 35932934 DOI: 10.1016/j.exger.2022.111908] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/04/2022]
Abstract
Aging is a process that occurs in tissues and across species, leading to the degradation of many biological processes. We previously demonstrated that rabbits are a feasible model for studying aging due to their genetic homology and relatively short lifespan in comparison to humans. We utilized a cPILOT multiplexing strategy to identify proteomic changes in spleen tissues of young, middle, and old aged rabbits. We identified 63 proteins that change significantly (p < 0.05) with age and notably these proteins relate to nucleotide and RNA binding, DNA repair, actin regulation, and immune system pathways. Here, we explore the implications of aging in the spleen and demonstrate the utility of a rabbit model to understand aging processes.
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Zhang L, Pitcher LE, Yousefzadeh MJ, Niedernhofer LJ, Robbins PD, Zhu Y. Cellular senescence: a key therapeutic target in aging and diseases. J Clin Invest 2022; 132:e158450. [PMID: 35912854 PMCID: PMC9337830 DOI: 10.1172/jci158450] [Citation(s) in RCA: 134] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Cellular senescence is a hallmark of aging defined by stable exit from the cell cycle in response to cellular damage and stress. Senescent cells (SnCs) can develop a characteristic pathogenic senescence-associated secretory phenotype (SASP) that drives secondary senescence and disrupts tissue homeostasis, resulting in loss of tissue repair and regeneration. The use of transgenic mouse models in which SnCs can be genetically ablated has established a key role for SnCs in driving aging and age-related disease. Importantly, senotherapeutics have been developed to pharmacologically eliminate SnCs, termed senolytics, or suppress the SASP and other markers of senescence, termed senomorphics. Based on extensive preclinical studies as well as small clinical trials demonstrating the benefits of senotherapeutics, multiple clinical trials are under way. This Review discusses the role of SnCs in aging and age-related diseases, strategies to target SnCs, approaches to discover and develop senotherapeutics, and preclinical and clinical advances of senolytics.
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Affiliation(s)
- Lei Zhang
- Institute on the Biology of Aging and Metabolism and the Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Louise E. Pitcher
- Institute on the Biology of Aging and Metabolism and the Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Matthew J. Yousefzadeh
- Institute on the Biology of Aging and Metabolism and the Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Laura J. Niedernhofer
- Institute on the Biology of Aging and Metabolism and the Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Paul D. Robbins
- Institute on the Biology of Aging and Metabolism and the Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Yi Zhu
- Robert and Arlene Kogod Center on Aging, and
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
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Nickoloff JA. Targeting Replication Stress Response Pathways to Enhance Genotoxic Chemo- and Radiotherapy. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27154736. [PMID: 35897913 PMCID: PMC9330692 DOI: 10.3390/molecules27154736] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 12/12/2022]
Abstract
Proliferating cells regularly experience replication stress caused by spontaneous DNA damage that results from endogenous reactive oxygen species (ROS), DNA sequences that can assume secondary and tertiary structures, and collisions between opposing transcription and replication machineries. Cancer cells face additional replication stress, including oncogenic stress that results from the dysregulation of fork progression and origin firing, and from DNA damage induced by radiotherapy and most cancer chemotherapeutic agents. Cells respond to such stress by activating a complex network of sensor, signaling and effector pathways that protect genome integrity. These responses include slowing or stopping active replication forks, protecting stalled replication forks from collapse, preventing late origin replication firing, stimulating DNA repair pathways that promote the repair and restart of stalled or collapsed replication forks, and activating dormant origins to rescue adjacent stressed forks. Currently, most cancer patients are treated with genotoxic chemotherapeutics and/or ionizing radiation, and cancer cells can gain resistance to the resulting replication stress by activating pro-survival replication stress pathways. Thus, there has been substantial effort to develop small molecule inhibitors of key replication stress proteins to enhance tumor cell killing by these agents. Replication stress targets include ATR, the master kinase that regulates both normal replication and replication stress responses; the downstream signaling kinase Chk1; nucleases that process stressed replication forks (MUS81, EEPD1, Metnase); the homologous recombination catalyst RAD51; and other factors including ATM, DNA-PKcs, and PARP1. This review provides an overview of replication stress response pathways and discusses recent pre-clinical studies and clinical trials aimed at improving cancer therapy by targeting replication stress response factors.
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Affiliation(s)
- Jac A Nickoloff
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
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Clavere NG, Alqallaf A, Rostron KA, Parnell A, Mitchell R, Patel K, Boateng SY. Inhibition of activin A receptor signalling attenuates age-related pathological cardiac remodelling. Dis Model Mech 2022; 15:275323. [PMID: 35380160 PMCID: PMC9118092 DOI: 10.1242/dmm.049424] [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: 12/17/2021] [Accepted: 03/16/2022] [Indexed: 11/20/2022] Open
Abstract
In the heart, ageing is associated with DNA damage, oxidative stress, fibrosis and activation of the activin signalling pathway, leading to cardiac dysfunction. The cardiac effects of activin signalling blockade in progeria are unknown. This study investigated the cardiac effects of progeria induced by attenuated levels of Ercc1, which is required for DNA excision and repair, and the impact of activin signalling blockade using a soluble activin receptor type IIB (sActRIIB). DNA damage and oxidative stress were significantly increased in Ercc1Δ/− hearts, but were reduced by sActRIIB treatment. sActRIIB treatment improved cardiac systolic function and induced cardiomyocyte hypertrophy in Ercc1Δ/− hearts. RNA-sequencing analysis showed that in Ercc1Δ/− hearts, there was an increase in pro-oxidant and a decrease in antioxidant gene expression, whereas sActRIIB treatment reversed this effect. Ercc1Δ/− hearts also expressed higher levels of anti-hypertrophic genes and decreased levels of pro-hypertrophic ones, which were also reversed by sActRIIB treatment. These results show for the first time that inhibition of activin A receptor signalling attenuates cardiac dysfunction, pathological tissue remodelling and gene expression in Ercc1-deficient mice and presents a potentially novel therapeutic target for heart diseases. Summary: Attenuated DNA repair is associated with pathological cardiac remodelling and gene expression. Much of this phenotype is attenuated by inhibition of the activin signalling pathway using soluble activin receptor treatment.
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Affiliation(s)
- Nicolas G Clavere
- Institute of Cardiovascular and Metabolic Research, School of Biological Sciences, Health and Life Sciences Building, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Ali Alqallaf
- Institute of Cardiovascular and Metabolic Research, School of Biological Sciences, Health and Life Sciences Building, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Kerry A Rostron
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, Commonwealth Building, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK
| | - Andrew Parnell
- Institute of Cardiovascular and Metabolic Research, School of Biological Sciences, Health and Life Sciences Building, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Robert Mitchell
- Institute of Cardiovascular and Metabolic Research, School of Biological Sciences, Health and Life Sciences Building, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Ketan Patel
- Institute of Cardiovascular and Metabolic Research, School of Biological Sciences, Health and Life Sciences Building, University of Reading, Whiteknights, Reading RG6 6UB, UK
| | - Samuel Y Boateng
- Institute of Cardiovascular and Metabolic Research, School of Biological Sciences, Health and Life Sciences Building, University of Reading, Whiteknights, Reading RG6 6UB, UK
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Vegetables and Their Bioactive Compounds as Anti-Aging Drugs. Molecules 2022; 27:molecules27072316. [PMID: 35408714 PMCID: PMC9000296 DOI: 10.3390/molecules27072316] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 12/27/2022] Open
Abstract
Aging is a continuous process over time that is mainly related to natural alterations in mechanical–biological processes. This phenomenon is due to several factors, including the time and energy of biological processes. Aging can be attributed to biological factors such as oxidative stress, cell longevity, and stem cell senescence. Currently, aging is associated with several diseases, such as neurodegenerative diseases, cancer, and other diseases related to oxidative stress. In addition, certain natural molecules, including those derived from vegetables, have shown the ability to delay the aging process. Their effects are linked to different mechanisms of action, such as tissue regeneration and the activation of longevity and anti-senescence genes. The present work discusses the impact of vegetables, and bioactive compounds isolated from vegetables, against the physiological and pathological aging process and accompanying human diseases.
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Yegorov YE, Poznyak AV, Bezsonov EE, Zhuravlev AD, Nikiforov NG, Vishnyakova KS, Orekhov AN. Somatic Mutations of Hematopoietic Cells Are an Additional Mechanism of Body Aging, Conducive to Comorbidity and Increasing Chronification of Inflammation. Biomedicines 2022; 10:biomedicines10040782. [PMID: 35453534 PMCID: PMC9028317 DOI: 10.3390/biomedicines10040782] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/09/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023] Open
Abstract
It is known that the development of foci of chronic inflammation usually accompanies body aging. In these foci, senescent cells appear with a pro-inflammatory phenotype that helps maintain inflammation. Their removal with the help of senolytics significantly improves the general condition of the body and, according to many indicators, contributes to rejuvenation. The cells of the immune system participate in the initiation, development, and resolution of inflammation. With age, the human body accumulates mutations, including the cells of the bone marrow, giving rise to the cells of the immune system. We assume that a number of such mutations formed with age can lead to the appearance of “naive” cells with an initially pro-inflammatory phenotype, the migration of which to preexisting foci of inflammation contributes not to the resolution of inflammation but its chronicity. One of such cell variants are monocytes carrying mitochondrial mutations, which may be responsible for comorbidity and deterioration in the prognosis of the course of pathologies associated with aging, such as atherosclerosis, arthritis, osteoporosis, and neurodegenerative diseases.
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Affiliation(s)
- Yegor E. Yegorov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
- Correspondence: (Y.E.Y.); (A.V.P.); (A.N.O.)
| | - Anastasia V. Poznyak
- Institute for Atherosclerosis Research, 121609 Moscow, Russia
- Correspondence: (Y.E.Y.); (A.V.P.); (A.N.O.)
| | - Evgeny E. Bezsonov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.E.B.); (A.D.Z.); (N.G.N.)
- Institute of Human Morphology, 117418 Moscow, Russia
- Department of Biology and General Genetics, I.M. Sechenov First Moscow State Medical University (Sechenov University), 105043 Moscow, Russia
| | - Alexander D. Zhuravlev
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.E.B.); (A.D.Z.); (N.G.N.)
- Institute of Human Morphology, 117418 Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, 119334 Moscow, Russia
| | - Nikita G. Nikiforov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.E.B.); (A.D.Z.); (N.G.N.)
- Institute of Human Morphology, 117418 Moscow, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, 119334 Moscow, Russia
| | - Khava S. Vishnyakova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Alexander N. Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, 125315 Moscow, Russia; (E.E.B.); (A.D.Z.); (N.G.N.)
- Institute of Human Morphology, 117418 Moscow, Russia
- Correspondence: (Y.E.Y.); (A.V.P.); (A.N.O.)
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Bian Y, Wang X, Zheng Z, Ren G, Zhu H, Qiao M, Li G. Resveratrol drives cancer cell senescence via enhancing p38MAPK and DLC1 expressions. Food Funct 2022; 13:3283-3293. [PMID: 35234761 DOI: 10.1039/d1fo02365a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pro-senescence therapy is a recently proposed anti-cancer strategy and has been shown to effectively inhibit cancer. Resveratrol is gaining attention for its cancer preventive and suppressive properties. The mechanisms of resveratrol in cancer suppression by inducing cancer cell senescence are unclear. Our results showed that resveratrol induced cell senescence along with an increase of SA-β-Gal activity and inhibition of colony formation in breast and lung cancer cells. The underlying mechanisms were that resveratrol induced ER-stress by increasing SIRT1 to promote p38MAPK expression and by reducing NO level to up-regulate DLC1 expression, and ER-stress further resulted in DNA damage and mitochondrial dysfunction, eventually leading to cancer cell senescence. Our findings on resveratrol's induction of cancer cell senescence via activating ER-stress through the SIRT1/p38MAPK and NO/DLC1 pathways provide a solid base for its clinical application and its preventive application as a food additive.
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Affiliation(s)
- Yan Bian
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
| | - Xingjie Wang
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
| | - Zhaodi Zheng
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
| | - Guanghui Ren
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
| | - Hongyan Zhu
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
| | - Mengxue Qiao
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
| | - Guorong Li
- Shandong Provincial Key Laboratory of Animal Resistant Biology, School of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China.
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37
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Masters MC, Landay AL, Robbins PD, Tchkonia T, Kirkland JL, Kuchel GA, Niedernhofer LJ, Palella FJ. Chronic HIV Infection and Aging: Application of a Geroscience-Guided Approach. J Acquir Immune Defic Syndr 2022; 89:S34-S46. [PMID: 35015744 PMCID: PMC8751288 DOI: 10.1097/qai.0000000000002858] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 12/16/2022]
Abstract
ABSTRACT The ability of virally suppressive antiretroviral therapy use to extend the life span of people with HIV (PWH) implies that the age of PWH will also increase. Among PWH, extended survival comes at a cost of earlier onset and increased rates of aging-associated comorbidities and geriatric syndromes, with persistent inflammation and immune dysregulation consequent to chronic HIV infection and to antiretroviral therapy use contributing to an overall decrease in health span. The geroscience hypothesis proposes that the root causes of most aging-related chronic diseases and conditions is the aging process itself. Hence, therapeutically targeting fundamental aging processes could have a greater impact on alleviating or delaying aging-associated comorbidities than addressing each disease individually. Extending the geroscience hypothesis to PWH, we speculate that targeting basic mechanisms of aging will improve overall health with age. Clinical features and pathophysiologic mechanisms of chronic diseases in PWH qualitatively resemble those seen in older adults without HIV. Therefore, drugs that target any of the pillars of aging, including metformin, rapamycin, and nicotinamide adenine dinucleotide precursors, may also slow the rate of onset of age-associated comorbidities and geriatric syndromes in PWH. Drugs that selectively induce apoptosis of senescent cells, termed senolytics, may also improve health span among PWH. Preliminary evidence suggests that senescent cell burden is increased in PWH, implying that senescent cells are an excellent therapeutic target for extending health span. Recently initiated clinical trials evaluating senolytics in age-related diseases offer insights into the design and potential implementation of similar trials for PWH.
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Affiliation(s)
- Mary C. Masters
- Department of Medicine, Division of Infectious Diseases, Northwestern University, Chicago, IL
| | - Alan L. Landay
- Department of Internal Medicine, Section of Geriatric Medicine Rush University Medical Center, Chicago, IL
| | - Paul D. Robbins
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN
| | - Tamar Tchkonia
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN; and
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN; and
| | - James L. Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN; and
| | | | - Laura J. Niedernhofer
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN
| | - Frank J. Palella
- Department of Medicine, Division of Infectious Diseases, Northwestern University, Chicago, IL
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Murphy ME, Narasimhan A, Adrian A, Kumar A, Green CL, Soto-Palma C, Henpita C, Camell C, Morrow CS, Yeh CY, Richardson CE, Hill CM, Moore DL, Lamming DW, McGregor ER, Simmons HA, Pak HH, Bai H, Denu JM, Clark J, Simcox J, Chittimalli K, Dahlquist K, Lee KA, Calubag M, Bouska M, Yousefzadeh MJ, Sonsalla M, Babygirija R, Yuan R, Tsuji T, Rhoads T, Menon V, Jarajapu YP, Zhu Y. Metabolism in the Midwest: research from the Midwest Aging Consortium at the 49 th Annual Meeting of the American Aging Association. GeroScience 2022; 44:39-52. [PMID: 34714522 PMCID: PMC8554732 DOI: 10.1007/s11357-021-00479-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Michaela E Murphy
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Akilavalli Narasimhan
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Alexis Adrian
- Department of Urology, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Molecular and Cellular Pharmacology Program, University of Wisconsin-Madison, Madison, WI, 53705, USA
- U54 George M. O'Brien Center for Benign Urology Research, Madison, WI, 53705, USA
| | - Ankur Kumar
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Cara L Green
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
| | - Carolina Soto-Palma
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Chathurika Henpita
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Christina Camell
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Christopher S Morrow
- Department of Neuroscience, University of Wisconsin - Madison, Madison, WI, 53705, USA
| | - Chung-Yang Yeh
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
| | - Claire E Richardson
- Department of Genetics, University of Wisconsin - Madison, Madison, WI, 53706, USA
| | - Cristal M Hill
- Neurosignaling Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, 70809, USA
| | - Darcie L Moore
- Department of Neuroscience, University of Wisconsin - Madison, Madison, WI, 53705, 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
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Cellular and Molecular Biology Program, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Eric R McGregor
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Heather A Simmons
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, 53175, USA
| | - Heidi H Pak
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Hua Bai
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - John M Denu
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53705, USA
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI, USA
- Wisconsin Institute for Discovery, Madison, WI, USA
| | - Josef Clark
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
| | - Judith Simcox
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Kishore Chittimalli
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58105, USA
| | - Korbyn Dahlquist
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Kyoo-A Lee
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Mariah Calubag
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Cellular and Molecular Biology Program, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Mark Bouska
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, IA, 50011, USA
| | - Matthew J Yousefzadeh
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Michelle Sonsalla
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
| | - Reji Babygirija
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Cellular and Molecular Biology Program, University of Wisconsin-Madison, Madison, WI, 53705, USA
| | - Rong Yuan
- Department of Medical Microbiology, Immunology, and Cell Biology, Southern Illinois School of Medicine, Springfield, IL, USA
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, 62794, USA
| | - Tadataka Tsuji
- Section On Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Timothy Rhoads
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, 53705, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
| | - Vinal Menon
- Institute On the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Yagna Pr Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58105, USA
| | - Yun Zhu
- Department of Medical Microbiology, Immunology, and Cell Biology, Southern Illinois School of Medicine, Springfield, IL, USA.
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, 62794, USA.
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39
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Bollini S, Guzik TJ. Old, but gold? Not the case for the immune system when promoting systemic ageing. Cardiovasc Res 2022; 118:e14-e16. [DOI: 10.1093/cvr/cvab366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sveva Bollini
- Department of Experimental Medicine (DIMES), University of Genova, L.go R. Benzi 10, 16132, Genova, Italy
| | - Tomasz J Guzik
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
- Department of Medicine, Jagiellonian University College of Medicine, Krakow, Poland
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40
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Zhang L, Zhao J, Mu X, McGowan SJ, Angelini L, O'Kelly RD, Yousefzadeh MJ, Sakamoto A, Aversa Z, LeBrasseur NK, Suh Y, Huard J, Kamenecka TM, Niedernhofer LJ, Robbins PD. Novel small molecule inhibition of IKK/NF-κB activation reduces markers of senescence and improves healthspan in mouse models of aging. Aging Cell 2021; 20:e13486. [PMID: 34734460 PMCID: PMC8672781 DOI: 10.1111/acel.13486] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 09/01/2021] [Accepted: 09/13/2021] [Indexed: 11/30/2022] Open
Abstract
Constitutive NF-κB activation is associated with cellular senescence and stem cell dysfunction and rare variants in NF-κB family members are enriched in centenarians. We recently identified a novel small molecule (SR12343) that inhibits IKK/NF-κB activation by disrupting the association between IKKβ and NEMO. Here we investigated the therapeutic effects of SR12343 on senescence and aging in three different mouse models. SR12343 reduced senescence-associated beta-galactosidase (SA-β-gal) activity in oxidative stress-induced senescent mouse embryonic fibroblasts as well as in etoposide-induced senescent human IMR90 cells. Chronic administration of SR12343 to the Ercc1-/∆ and Zmpste24-/- mouse models of accelerated aging reduced markers of cellular senescence and SASP and improved multiple parameters of aging. SR12343 also reduced markers of senescence and increased muscle fiber size in 2-year-old WT mice. Taken together, these results demonstrate that IKK/NF-κB signaling pathway represents a promising target for reducing markers of cellular senescence, extending healthspan and treating age-related diseases.
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Affiliation(s)
- Lei Zhang
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Jing Zhao
- Department of Molecular MedicineScripps ResearchJupiterFloridaUSA
| | - Xiaodong Mu
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
- Shandong First Medical University (Shandong Academy of Medical Sciences)JinanChina
| | - Sara J. McGowan
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Luise Angelini
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Ryan D. O'Kelly
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Matthew J. Yousefzadeh
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Ayumi Sakamoto
- Department of Physical Medicine and Rehabilitation and Robert and Arlene Kogod Center on AgingRochesterMinnesotaUSA
| | - Zaira Aversa
- Department of Physical Medicine and Rehabilitation and Robert and Arlene Kogod Center on AgingRochesterMinnesotaUSA
| | - Nathan K. LeBrasseur
- Department of Physical Medicine and Rehabilitation and Robert and Arlene Kogod Center on AgingRochesterMinnesotaUSA
| | - Yousin Suh
- Department of Genetics and DevelopmentColumbia UniversityNew YorkNew YorkUSA
| | - Johnny Huard
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | | | - Laura J. Niedernhofer
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Paul D. Robbins
- Department of Biochemistry, Molecular Biology and BiophysicsInstitute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
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Xu Q, Fu Q, Li Z, Liu H, Wang Y, Lin X, He R, Zhang X, Ju Z, Campisi J, Kirkland JL, Sun Y. The flavonoid procyanidin C1 has senotherapeutic activity and increases lifespan in mice. Nat Metab 2021; 3:1706-1726. [PMID: 34873338 PMCID: PMC8688144 DOI: 10.1038/s42255-021-00491-8] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 10/13/2021] [Indexed: 01/10/2023]
Abstract
Ageing-associated functional decline of organs and increased risk for age-related chronic pathologies is driven in part by the accumulation of senescent cells, which develop the senescence-associated secretory phenotype (SASP). Here we show that procyanidin C1 (PCC1), a polyphenolic component of grape seed extract (GSE), increases the healthspan and lifespan of mice through its action on senescent cells. By screening a library of natural products, we find that GSE, and PCC1 as one of its active components, have specific effects on senescent cells. At low concentrations, PCC1 appears to inhibit SASP formation, whereas it selectively kills senescent cells at higher concentrations, possibly by promoting production of reactive oxygen species and mitochondrial dysfunction. In rodent models, PCC1 depletes senescent cells in a treatment-damaged tumour microenvironment and enhances therapeutic efficacy when co-administered with chemotherapy. Intermittent administration of PCC1 to either irradiated, senescent cell-implanted or naturally aged old mice alleviates physical dysfunction and prolongs survival. We identify PCC1 as a natural senotherapeutic agent with in vivo activity and high potential for further development as a clinical intervention to delay, alleviate or prevent age-related pathologies.
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Affiliation(s)
- Qixia Xu
- CAS Key Laboratory of Tissue Microenvironment and Tumour, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine & Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qiang Fu
- Department of Pharmacology, Institute of Aging Medicine, Binzhou Medical University, Yantai, China
| | - Zi Li
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Hanxin Liu
- Department of Pharmacology, Institute of Aging Medicine, Binzhou Medical University, Yantai, China
| | - Ying Wang
- CAS Key Laboratory of Tissue Microenvironment and Tumour, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xu Lin
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Ruikun He
- Science & Technology Centre, By-Health Corp. Ltd., Guangzhou, China
| | - Xuguang Zhang
- Science & Technology Centre, By-Health Corp. Ltd., Guangzhou, China
| | - Zhenyu Ju
- Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Institute of Aging and Regenerative Medicine, Jinan University, Guangzhou, China
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA, USA
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Yu Sun
- CAS Key Laboratory of Tissue Microenvironment and Tumour, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
- Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine & Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
- Department of Pharmacology, Institute of Aging Medicine, Binzhou Medical University, Yantai, China.
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China.
- Department of Medicine and VAPSHCS, University of Washington, Seattle, WA, USA.
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42
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Gladyshev VN, Kritchevsky SB, Clarke SG, Cuervo AM, Fiehn O, de Magalhães JP, Mau T, Maes M, Moritz R, Niedernhofer LJ, Van Schaftingen E, Tranah GJ, Walsh K, Yura Y, Zhang B, Cummings SR. Molecular Damage in Aging. NATURE AGING 2021; 1:1096-1106. [PMID: 36846190 PMCID: PMC9957516 DOI: 10.1038/s43587-021-00150-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 11/04/2021] [Indexed: 11/09/2022]
Abstract
Cellular metabolism generates molecular damage affecting all levels of biological organization. Accumulation of this damage over time is thought to play a central role in the aging process, but damage manifests in diverse molecular forms complicating its assessment. Insufficient attention has been paid to date to the role of molecular damage in aging-related phenotypes, particularly in humans, in part because of the difficulty in measuring its various forms. Recently, omics approaches have been developed that begin to address this challenge, because they are able to assess a sizeable proportion of age-related damage at the level of small molecules, proteins, RNA, DNA, organelles and cells. This review describes the concept of molecular damage in aging and discusses its diverse aspects from theoretical models to experimental approaches. Measurement of multiple types of damage enables studies of the role of damage in human aging outcomes and lays a foundation for testing interventions to reduce the burden of molecular damage, opening new approaches to slowing aging and reducing its consequences.
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Affiliation(s)
- Vadim N. Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Stephen B. Kritchevsky
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA
| | - Steven G. Clarke
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ana Maria Cuervo
- Department of Development and Molecular Biology, Albert Einstein College of Medicine, New York, NY 10461, USA
- Institute for Aging Studies, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Oliver Fiehn
- West Coast Metabolomics Center, University of California Davis, Davis, CA 95616, USA
| | - João Pedro de Magalhães
- Integrative Genomics of Ageing Group, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK
| | - Theresa Mau
- San Francisco Coordinating Center, California Pacific Medical Center, Research Institute, San Francisco, CA 94143, USA
| | - Michal Maes
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Robert Moritz
- Institute for Systems Biology, Seattle, WA 98109, USA
| | - Laura J. Niedernhofer
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Emile Van Schaftingen
- De Duve Institute, Université catholique de Louvain, Bruxelles, Belgium
- Walloon Excellence in Life Sciences and Biotechnology (WELBIO), Université catholique de Louvain, Bruxelles, Belgium
| | - Gregory J. Tranah
- San Francisco Coordinating Center, California Pacific Medical Center, Research Institute, San Francisco, CA 94143, USA
| | - Kenneth Walsh
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA 22908, USA
| | - Yoshimitsu Yura
- Hematovascular Biology Center, Robert M. Berne Cardiovascular Research Center, University of Virginia-School of Medicine, Charlottesville, VA 22908, USA
| | - Bohan Zhang
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Steven R. Cummings
- San Francisco Coordinating Center, California Pacific Medical Center, Research Institute, San Francisco, CA 94143, USA
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43
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Radmanesh F, Razi M, Shalizar-Jalali A. Curcumin nano-micelle induced testicular toxicity in healthy rats; evidence for oxidative stress and failed homeostatic response by heat shock proteins 70-2a and 90. Biomed Pharmacother 2021; 142:111945. [PMID: 34311173 DOI: 10.1016/j.biopha.2021.111945] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/23/2021] [Accepted: 07/14/2021] [Indexed: 12/15/2022] Open
Abstract
This study explores the effect of curcumin nano-micelle (NCMN) on the testicular anti-oxidant status and heat shock proteins (Hsp) 70-2a and Hsp 90 expression. Therefore, 24 male Wistar rats were divided into control, 7.50 mg/kg, 15 mg/kg, and 30 mg/kg of NCMN-received groups. Following 48 days, the testicular total anti-oxidant capacity (TAC), total oxidant status (TOS), malondialdehyde (MDA) and glutathione (GSH), catalase (CAT) and glutathione peroxidase (GPX) activities, immunoreactivity of 8-oxodG, Hsp70-2a and Hsp90 expressions, germ cell's DNA and mRNA damages, the spermatozoa count, motility and DNA integrity were assessed. With no change in the testicular TAC level, the TOS, MDA and GSH contents were increased in the NMC-received groups. However, CAT and GPX activities were decreased. The NCMN suppressed spermatogenesis, increased immunoreactivity of 8-oxodG, stimulated the Hsp70-2a and Hsp90 expressions, and resulted in severe DNA and mRNA damages. Moreover, the NCMN-received animals exhibited remarkable reductions in the spermatozoa count, motility and DNA integrity. In conclusion, chronic and high dose consumption of NCMN initiates OS, and in response to OS, the Hsp70-2a and Hsp90 expression increases. However, considering enhanced DNA and mRNA damages and suppressed spermatogenesis, HSPs over-expression can neither boost the anti-oxidant system nor overcome the NCMN-induced OS-related damages.
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Affiliation(s)
- Fereshteh Radmanesh
- Department of Basic Sciences, Division of Comparative Histology & Embryology, Faculty of Veterinary Medicine, Urmia University, P.O.BOX: 1177, Urmia, Iran.
| | - Mazdak Razi
- Department of Basic Sciences, Division of Comparative Histology & Embryology, Faculty of Veterinary Medicine, Urmia University, P.O.BOX: 1177, Urmia, Iran.
| | - Ali Shalizar-Jalali
- Department of Basic Sciences, Division of Comparative Histology & Embryology, Faculty of Veterinary Medicine, Urmia University, P.O.BOX: 1177, Urmia, Iran.
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44
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Narasimhan A, Flores RR, Robbins PD, Niedernhofer LJ. Role of Cellular Senescence in Type II Diabetes. Endocrinology 2021; 162:6345039. [PMID: 34363464 PMCID: PMC8386762 DOI: 10.1210/endocr/bqab136] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 01/10/2023]
Abstract
Cellular senescence is a cell fate that occurs in response to numerous types of stress and can promote tissue repair or drive inflammation and disruption of tissue homeostasis depending on the context. Aging and obesity lead to an increase in the senescent cell burden in multiple organs. Senescent cells release a myriad of senescence-associated secretory phenotype factors that directly mediate pancreatic β-cell dysfunction, adipose tissue dysfunction, and insulin resistance in peripheral tissues, which promote the onset of type II diabetes mellitus. In addition, hyperglycemia and metabolic changes seen in diabetes promote cellular senescence. Diabetes-induced cellular senescence contributes to various diabetic complications. Thus, type II diabetes is both a cause and consequence of cellular senescence. This review summarizes recent studies on the link between aging, obesity, and diabetes, focusing on the role of cellular senescence in disease processes.
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Affiliation(s)
- Akilavalli Narasimhan
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota Medical School, 55455, USA
| | - Rafael R Flores
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota Medical School, 55455, USA
| | - Paul D Robbins
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota Medical School, 55455, USA
| | - Laura J Niedernhofer
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota Medical School, 55455, USA
- Correspondence: Laura J. Niedernhofer, MD, PhD, Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota Medical School, 6-155 Jackson Hall, 321 Church Street, SE, Minneapolis, MN 55455, USA.
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45
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Sharma R. Perspectives on the dynamic implications of cellular senescence and immunosenescence on macrophage aging biology. Biogerontology 2021; 22:571-587. [PMID: 34490541 DOI: 10.1007/s10522-021-09936-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/30/2021] [Indexed: 01/10/2023]
Abstract
An intricate relationship between impaired immune functions and the age-related accumulation of tissue senescent cells is rapidly emerging. The immune system is unique as it undergoes mutually inclusive and deleterious processes of immunosenescence and cellular senescence with advancing age. While factors inducing immunosenescence and cellular senescence may be shared, however, both these processes are fundamentally different which holistically influence the aging immune system. Our understanding of the biological impact of immunosenescence is relatively well-understood, but such knowledge regarding cellular senescence in immune cells, especially in the innate immune cells such as macrophages, is only beginning to be elucidated. Tissue-resident macrophages are long-lived, and while functioning in tissue-specific and niche-specific microenvironments, senescence in macrophages can be directly influenced by senescent host cells which may impact organismal aging. In addition, evidence of age-associated immunometabolic changes as drivers of altered macrophage phenotype and functions such as inflamm-aging is also emerging. The present review describes the emerging impact of cellular senescence vis-à-vis immunosenescence in aging macrophages, its biological relevance with other senescent non-immune cells, and known immunometabolic regulators. Gaps in our present knowledge, as well as strategies aimed at understanding cellular senescence and its therapeutics in the context of macrophages, have been reviewed.
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Affiliation(s)
- Rohit Sharma
- Faculty of Applied Sciences & Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India.
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46
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Opportunities and Challenges in Stem Cell Aging. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1341:143-175. [PMID: 33748933 DOI: 10.1007/5584_2021_624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Studying aging, as a physiological process that can cause various pathological phenotypes, has attracted lots of attention due to its increasing burden and prevalence. Therefore, understanding its mechanism to find novel therapeutic alternatives for age-related disorders such as neurodegenerative and cardiovascular diseases is essential. Stem cell senescence plays an important role in aging. In the context of the underlying pathways, mitochondrial dysfunction, epigenetic and genetic alterations, and other mechanisms have been studied and as a consequence, several rejuvenation strategies targeting these mechanisms like pharmaceutical interventions, genetic modification, and cellular reprogramming have been proposed. On the other hand, since stem cells have great potential for disease modeling, they have been useful for representing aging and its associated disorders. Accordingly, the main mechanisms of senescence in stem cells and promising ways of rejuvenation, along with some examples of stem cell models for aging are introduced and discussed. This review aims to prepare a comprehensive summary of the findings by focusing on the most recent ones to shine a light on this area of research.
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47
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Yang J, Liu M, Hong D, Zeng M, Zhang X. The Paradoxical Role of Cellular Senescence in Cancer. Front Cell Dev Biol 2021; 9:722205. [PMID: 34458273 PMCID: PMC8388842 DOI: 10.3389/fcell.2021.722205] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/20/2021] [Indexed: 12/12/2022] Open
Abstract
Cellular senescence occurs in proliferating cells as a consequence of various triggers including telomere shortening, DNA damage, and inappropriate expression of oncogenes. The senescent state is accompanied by failure to reenter the cell cycle under mitotic stimulation, resistance to cell death and enhanced secretory phenotype. A growing number of studies have convincingly demonstrated a paradoxical role for spontaneous senescence and therapy-induced senescence (TIS), that senescence may involve both cancer prevention and cancer aggressiveness. Cellular senescence was initially described as a physiological suppressor mechanism of tumor cells, because cancer development requires cell proliferation. However, there is growing evidence that senescent cells may contribute to oncogenesis, partly in a senescence-associated secretory phenotype (SASP)-dependent manner. On the one hand, SASP prevents cell division and promotes immune clearance of damaged cells, thereby avoiding tumor development. On the other hand, SASP contributes to tumor progression and relapse through creating an immunosuppressive environment. In this review, we performed a review to summarize both bright and dark sides of senescence in cancer, and the strategies to handle senescence in cancer therapy were also discussed.
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Affiliation(s)
- Jing Yang
- Melanoma and Sarcoma Medical Oncology Unit, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Mengmeng Liu
- Melanoma and Sarcoma Medical Oncology Unit, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dongchun Hong
- Melanoma and Sarcoma Medical Oncology Unit, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Musheng Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xing Zhang
- Melanoma and Sarcoma Medical Oncology Unit, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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48
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Sellami M, Bragazzi N, Prince MS, Denham J, Elrayess M. Regular, Intense Exercise Training as a Healthy Aging Lifestyle Strategy: Preventing DNA Damage, Telomere Shortening and Adverse DNA Methylation Changes Over a Lifetime. Front Genet 2021; 12:652497. [PMID: 34421981 PMCID: PMC8379006 DOI: 10.3389/fgene.2021.652497] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/30/2021] [Indexed: 12/13/2022] Open
Abstract
Exercise training is one of the few therapeutic interventions that improves health span by delaying the onset of age-related diseases and preventing early death. The length of telomeres, the 5'-TTAGGG n -3' tandem repeats at the ends of mammalian chromosomes, is one of the main indicators of biological age. Telomeres undergo shortening with each cellular division. This subsequently leads to alterations in the expression of several genes that encode vital proteins with critical functions in many tissues throughout the body, and ultimately impacts cardiovascular, immune and muscle physiology. The sub-telomeric DNA is comprised of heavily methylated, heterochromatin. Methylation and histone acetylation are two of the most well-studied examples of the epigenetic modifications that occur on histone proteins. DNA methylation is the type of epigenetic modification that alters gene expression without modifying gene sequence. Although diet, genetic predisposition and a healthy lifestyle seem to alter DNA methylation and telomere length (TL), recent evidence suggests that training status or physical fitness are some of the major factors that control DNA structural modifications. In fact, TL is positively associated with cardiorespiratory fitness, physical activity level (sedentary, active, moderately trained, or elite) and training intensity, but is shorter in over-trained athletes. Similarly, somatic cells are vulnerable to exercise-induced epigenetic modification, including DNA methylation. Exercise-training load, however, depends on intensity and volume (duration and frequency). Training load-dependent responses in genomic profiles could underpin the discordant physiological and physical responses to exercise. In the current review, we will discuss the role of various forms of exercise training in the regulation of DNA damage, TL and DNA methylation status in humans, to provide an update on the influence exercise training has on biological aging.
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Affiliation(s)
- Maha Sellami
- Physical Education Department (PE), College of Education (CEdu), Qatar University, Doha, Qatar
| | - Nicola Bragazzi
- Department of Health Sciences (DISSAL), Postgraduate School of Public Health, University of Genoa, Genoa, Italy
| | - Mohammad Shoaib Prince
- Physical Education Department (PE), College of Education (CEdu), Qatar University, Doha, Qatar
- Division of Sports and Wellness, Department of Students Affairs, College of North Atlantic Qatar (CNAQ), Doha, Qatar
| | - Joshua Denham
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
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49
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Yousefzadeh MJ, Flores RR, Zhu Y, Schmiechen ZC, Brooks RW, Trussoni CE, Cui Y, Angelini L, Lee KA, McGowan SJ, Burrack AL, Wang D, Dong Q, Lu A, Sano T, O'Kelly RD, McGuckian CA, Kato JI, Bank MP, Wade EA, Pillai SPS, Klug J, Ladiges WC, Burd CE, Lewis SE, LaRusso NF, Vo NV, Wang Y, Kelley EE, Huard J, Stromnes IM, Robbins PD, Niedernhofer LJ. An aged immune system drives senescence and ageing of solid organs. Nature 2021; 594:100-105. [PMID: 33981041 PMCID: PMC8684299 DOI: 10.1038/s41586-021-03547-7] [Citation(s) in RCA: 373] [Impact Index Per Article: 124.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 04/13/2021] [Indexed: 11/09/2022]
Abstract
Ageing of the immune system, or immunosenescence, contributes to the morbidity and mortality of the elderly1,2. To define the contribution of immune system ageing to organism ageing, here we selectively deleted Ercc1, which encodes a crucial DNA repair protein3,4, in mouse haematopoietic cells to increase the burden of endogenous DNA damage and thereby senescence5-7 in the immune system only. We show that Vav-iCre+/-;Ercc1-/fl mice were healthy into adulthood, then displayed premature onset of immunosenescence characterized by attrition and senescence of specific immune cell populations and impaired immune function, similar to changes that occur during ageing in wild-type mice8-10. Notably, non-lymphoid organs also showed increased senescence and damage, which suggests that senescent, aged immune cells can promote systemic ageing. The transplantation of splenocytes from Vav-iCre+/-;Ercc1-/fl or aged wild-type mice into young mice induced senescence in trans, whereas the transplantation of young immune cells attenuated senescence. The treatment of Vav-iCre+/-;Ercc1-/fl mice with rapamycin reduced markers of senescence in immune cells and improved immune function11,12. These data demonstrate that an aged, senescent immune system has a causal role in driving systemic ageing and therefore represents a key therapeutic target to extend healthy ageing.
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Affiliation(s)
- Matthew J Yousefzadeh
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Rafael R Flores
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Yi Zhu
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Zoe C Schmiechen
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Robert W Brooks
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, USA
| | - Christy E Trussoni
- Division of Gastroenterology, Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN, USA
| | - Yuxiang Cui
- Department of Chemistry, University of California Riverside, Riverside, CA, USA
| | - Luise Angelini
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Kyoo-A Lee
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Sara J McGowan
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Adam L Burrack
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Dong Wang
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Qing Dong
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Aiping Lu
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Tokio Sano
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, USA
| | - Ryan D O'Kelly
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Collin A McGuckian
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Jonathan I Kato
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, USA
| | - Michael P Bank
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, USA
| | - Erin A Wade
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, FL, USA
| | | | - Jenna Klug
- Department of Comparative Medicine, University of Washington, Seattle, WA, USA
| | - Warren C Ladiges
- Department of Comparative Medicine, University of Washington, Seattle, WA, USA
| | - Christin E Burd
- Departments of Molecular Genetics and Cancer Biology and Genetics, The Ohio State University, Columbus, OH, USA
| | - Sara E Lewis
- Department of Physiology & Pharmacology, West Virginia University, Morgantown, WV, USA
| | - Nicholas F LaRusso
- Division of Gastroenterology, Center for Cell Signaling in Gastroenterology, Mayo Clinic, Rochester, MN, USA
| | - Nam V Vo
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yinsheng Wang
- Department of Chemistry, University of California Riverside, Riverside, CA, USA
| | - Eric E Kelley
- Department of Physiology & Pharmacology, West Virginia University, Morgantown, WV, USA
| | - Johnny Huard
- Department of Orthopedic Surgery, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Ingunn M Stromnes
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Paul D Robbins
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA.
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA.
| | - Laura J Niedernhofer
- Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA.
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA.
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Costa J, Martins S, Ferreira PA, Cardoso AMS, Guedes JR, Peça J, Cardoso AL. The old guard: Age-related changes in microglia and their consequences. Mech Ageing Dev 2021; 197:111512. [PMID: 34022277 DOI: 10.1016/j.mad.2021.111512] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 12/17/2022]
Abstract
Among all major organs, the brain is one of the most susceptible to the inexorable effects of aging. Throughout the last decades, several studies in human cohorts and animal models have revealed a plethora of age-related changes in the brain, including reduced neurogenesis, oxidative damage, mitochondrial dysfunction and cell senescence. As the main immune effectors and first responders of the nervous tissue, microglia are at the center of these events. These cells experience irrevocable changes as a result from cumulative exposure to environmental triggers, such as stress, infection and metabolic dysregulation. The age-related immunosenescent phenotype acquired by microglia is characterized by profound modifications in their transcriptomic profile, secretome, morphology and phagocytic activity, which compromise both their housekeeping and defensive functions. As a result, aged microglia are no longer capable of establishing effective immune responses and sustaining normal synaptic activity, directly contributing to age-associated cognitive decline and neurodegeneration. This review discusses how lifestyle and environmental factors drive microglia dysfunction at the molecular and functional level, also highlighting possible interventions to reverse aging-associated damage to the nervous and immune systems.
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Affiliation(s)
- Jéssica Costa
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal; PhD Programme in Experimental Biology and Biomedicine (PDBEB), University of Coimbra, Coimbra, Portugal
| | - Solange Martins
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Pedro A Ferreira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; PhD Program in Biosciences, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana M S Cardoso
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Joana R Guedes
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - João Peça
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana L Cardoso
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal.
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