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Lin L, Tang R, Liu Y, Li Z, Li H, Yang H. The brain-protective mechanism of fecal microbiota transplantation from young donor mice in the natural aging process via exosome, gut microbiota, and metabolomics analyses. Pharmacol Res 2024; 207:107323. [PMID: 39053865 DOI: 10.1016/j.phrs.2024.107323] [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: 03/12/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
The natural aging process is accompanied by changes in exosomes, gut microbiota, and metabolites. This study aimed to reveal the anti-aging effect and mechanisms of fecal microbiota transplantation (FMT) from young donors on the natural aging process in mice by analyzing exosomes, gut microbiota, and metabolomics. Aging-relevant telomeric length, oxidative stress indexes in brain tissue, and serum cytokine levels were measured. Flow analysis of T-regulatory (Treg), CD4+, and CD8+ cells was performed, and the expression levels of aging-related proteins were quantified. High-throughput sequencing technology was used to identify differentially expressed serum exosomal miRNAs. Fecal microbiota was tested by 16 S rDNA sequencing. Changes in fecal metabolites were analyzed by UPLC-Q-TOF/MS. The results indicated that the expression of mmu-miR-7010-5p, mmu-miR-376b-5p, mmu-miR-135a-5p, and mmu-miR-3100-5p by serum exosomes was down-regulated and the abundance of opportunistic bacteria (Turicibacter, Allobaculum, Morganella.) was decreased, whereas the levels of protective bacteria (Akkermansia, Muribaculaceae, Helicobacter.) were increased after FMT. Metabolic analysis identified 25 potential biomarkers. Correlation analysis between the gut microbiota and metabolites suggested that the relative abundance of protective bacteria was positively correlated with the levels of spermidine and S-adenosylmethionine. The study indicated that FMT corrected brain injury due to aging via lipid metabolism, the metabolism of cofactors and vitamins, and amino acid metabolism.
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Affiliation(s)
- Longfei Lin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ruying Tang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yuling Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Zhiyong Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Hui Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang 330000, China.
| | - Hongjun Yang
- China Academy of Chinese Medical Sciences, Beijing 100700, China.
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Day M, Sing E, Spencer M, Moellenberg K, Mello I, Moore A. Anti-inflammatory diets. Nursing 2024; 54:15-23. [PMID: 39186156 DOI: 10.1097/nsg.0000000000000063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
ABSTRACT This article reviews inflammatory versus anti-inflammatory foods, autoimmune and inflammatory disorders, the benefits of specific anti-inflammatory diets, and strategies for nurses to partner with individuals, while considering culture and food preferences, to promote healthy eating habits and prevent diseases.
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Affiliation(s)
- Mercedes Day
- Mercedes Day is an assistant professor of nursing at Texas Tech University Health Sciences Center (TTUHSC) School of Nursing and a Family Nurse Practitioner focusing on pediatrics primary and urgent care and telehealth for men's health. Erin Sing is an associate professor of nursing and the program director for the Nurse-Midwifery MSN at TTUHSC. She also works clinically as a certified nurse midwife in Houston, Tex. Michelle Spencer is an instructor and clinical site coordinator at TTUHSC School of Nursing and practices in pediatric primary care. Kara Moellenberg is an instructor and clinical site coordinator at TTUHSC School of Nursing and practices in pediatric primary care. Inola Mello is a professor at TTUHSC School of Nursing. She practices as a Family Nurse Practitioner and works in college health, providing healthcare for both undergraduate and graduate students from around the globe. Amy Moore is a professor at TTUHSC School of Nursing. She practices as a Family Nurse Practitioner and works in women's health and telehealth provider for men's health
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Swahari V, Nakamura A, Hollville E, Hung YH, Kanke M, Kurtz CL, Caravia XM, Roiz-Valle D, He S, Krishnamurthy J, Kapoor S, Prasad V, Flowers C, Beck M, Baran-Gale J, Sharpless N, López-Otín C, Sethupathy P, Deshmukh M. miR-29 is an important driver of aging-related phenotypes. Commun Biol 2024; 7:1055. [PMID: 39191864 DOI: 10.1038/s42003-024-06735-z] [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: 02/27/2023] [Accepted: 08/14/2024] [Indexed: 08/29/2024] Open
Abstract
Aging is a consequence of complex molecular changes, but whether a single microRNA (miRNA) can drive aging remains unclear. A miRNA known to be upregulated during both normal and premature aging is miR-29. We find miR-29 to also be among the top miRNAs predicted to drive aging-related gene expression changes. We show that partial loss of miR-29 extends the lifespan of Zmpste24-/- mice, an established model of progeria, indicating that miR-29 is functionally important in this accelerated aging model. To examine whether miR-29 alone is sufficient to promote aging-related phenotypes, we generated mice in which miR-29 can be conditionally overexpressed (miR-29TG). miR-29 overexpression is sufficient to drive many aging-related phenotypes and led to early lethality. Transcriptomic analysis of both young miR-29TG and old WT mice reveals shared downregulation of genes associated with extracellular matrix organization and fatty acid metabolism, and shared upregulation of genes in pathways linked to inflammation. These results highlight the functional importance of miR-29 in controlling a gene expression program that drives aging-related phenotypes.
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Affiliation(s)
- Vijay Swahari
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
| | - Ayumi Nakamura
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
- Neurobiology Curriculum; University of North Carolina, Chapel Hill, NC, USA
| | - Emilie Hollville
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Yu-Han Hung
- Department of Biomedical Sciences; College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - Matt Kanke
- Department of Biomedical Sciences; College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - C Lisa Kurtz
- Department of Genetics; University of North Carolina, Chapel Hill, NC, USA
| | - Xurde M Caravia
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - David Roiz-Valle
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
| | - Shenghui He
- Department of Genetics; University of North Carolina, Chapel Hill, NC, USA
- The Lineberger Comprehensive Cancer Center; University of North Carolina, Chapel Hill, NC, USA
| | - Janakiraman Krishnamurthy
- Department of Genetics; University of North Carolina, Chapel Hill, NC, USA
- The Lineberger Comprehensive Cancer Center; University of North Carolina, Chapel Hill, NC, USA
| | - Sahil Kapoor
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
| | - Varun Prasad
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
| | - Cornelius Flowers
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
| | - Matt Beck
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA
| | - Jeanette Baran-Gale
- Department of Genetics; University of North Carolina, Chapel Hill, NC, USA
- Bioinformatics and Computational Biology Curriculum; University of North Carolina, Chapel Hill, NC, USA
| | - Norman Sharpless
- Department of Genetics; University of North Carolina, Chapel Hill, NC, USA
- The Lineberger Comprehensive Cancer Center; University of North Carolina, Chapel Hill, NC, USA
| | - Carlos López-Otín
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Oncología (IUOPA), Universidad de Oviedo, Oviedo, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Praveen Sethupathy
- Department of Biomedical Sciences; College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
| | - Mohanish Deshmukh
- Neuroscience Center; University of North Carolina, Chapel Hill, NC, USA.
- Neurobiology Curriculum; University of North Carolina, Chapel Hill, NC, USA.
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA.
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Krüger P, Hartinger R, Djabali K. Navigating Lipodystrophy: Insights from Laminopathies and Beyond. Int J Mol Sci 2024; 25:8020. [PMID: 39125589 PMCID: PMC11311807 DOI: 10.3390/ijms25158020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/06/2024] [Accepted: 07/16/2024] [Indexed: 08/12/2024] Open
Abstract
Recent research into laminopathic lipodystrophies-rare genetic disorders caused by mutations in the LMNA gene-has greatly expanded our knowledge of their complex pathology and metabolic implications. These disorders, including Hutchinson-Gilford progeria syndrome (HGPS), Mandibuloacral Dysplasia (MAD), and Familial Partial Lipodystrophy (FPLD), serve as crucial models for studying accelerated aging and metabolic dysfunction, enhancing our understanding of the cellular and molecular mechanisms involved. Research on laminopathies has highlighted how LMNA mutations disrupt adipose tissue function and metabolic regulation, leading to altered fat distribution and metabolic pathway dysfunctions. Such insights improve our understanding of the pathophysiological interactions between genetic anomalies and metabolic processes. This review merges current knowledge on the phenotypic classifications of these diseases and their associated metabolic complications, such as insulin resistance, hypertriglyceridemia, hepatic steatosis, and metabolic syndrome, all of which elevate the risk of cardiovascular disease, stroke, and diabetes. Additionally, a range of published therapeutic strategies, including gene editing, antisense oligonucleotides, and novel pharmacological interventions aimed at addressing defective adipocyte differentiation and lipid metabolism, will be explored. These therapies target the core dysfunctional lamin A protein, aiming to mitigate symptoms and provide a foundation for addressing similar metabolic and genetic disorders.
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Affiliation(s)
| | | | - Karima Djabali
- Epigenetics of Aging, Department of Dermatology and Allergy, TUM School of Medicine, Munich Institute of Biomedical Engineering (MIBE), Technical University of Munich (TUM), 85748 Garching, Germany; (P.K.); (R.H.)
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Tu JJ, Yu ZZ, Ou ML, Cen JX, Xue K, Zhou J, Li SJ, Lu GD. Differential impacts of nonsteroidal anti-inflammatory drugs on lifespan and healthspan in aged Caenorhabditis elegans. J Appl Toxicol 2024. [PMID: 38840409 DOI: 10.1002/jat.4655] [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: 04/01/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/07/2024]
Abstract
Aging and age-related diseases are intricately associated with oxidative stress and inflammation. Nonsteroidal anti-inflammatory drugs (NSAIDs) have shown their promise in mitigating age-related conditions and potentially extending lifespan in various model organisms. However, the efficacy of NSAIDs in older individuals may be influenced by age-related changes in drug metabolism and tolerance, which could result in age-dependent toxicities. This study aimed to evaluate the potential risks of toxicities associated with commonly used NSAIDs (aspirin, ibuprofen, acetaminophen, and indomethacin) on lifespan, healthspan, and oxidative stress levels in both young and old Caenorhabditis elegans. The results revealed that aspirin and ibuprofen were able to extend lifespan in both young and old worms by suppressing ROS generation and enhancing the expression of antioxidant SOD genes. In contrast, acetaminophen and indomeacin accelerated aging process in old worms, leading to oxidative stress damage and reduced resistance to heat stress through the pmk-1/skn-1 pathway. Notably, the harmful effects of acetaminophen and indomeacin were mitigated when pmk-1 was knocked out in the pmk-1(km25) strain. These results underscore the potential lack of benefit from acetaminophen and indomeacin in elderly individuals due to their increased susceptibility to toxicity. Further research is essential to elucidate the underlying mechanisms driving these age-dependent responses and to evaluate the potential risks associated with NSAID use in the elderly population.
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Affiliation(s)
- Jia-Jun Tu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, China
| | - Zhen-Zhen Yu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, China
| | - Mei-Ling Ou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, China
| | - Jin-Xiong Cen
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, China
| | - Kun Xue
- School of Public Health, Fudan University, Shanghai, China
| | - Jing Zhou
- Department of Physiology, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi Province, China
| | - Shao-Jun Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Guo-Dong Lu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, Guangxi Province, China
- School of Public Health, Fudan University, Shanghai, China
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Jazinaki MS, Rashidmayvan M, Pahlavani N. The effect of pomegranate juice supplementation on C-reactive protein levels: GRADE-assessed systematic review and dose-response updated meta-analysis of data from randomized controlled trials. Phytother Res 2024; 38:2818-2831. [PMID: 38553998 DOI: 10.1002/ptr.8188] [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: 09/17/2023] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 06/13/2024]
Abstract
Pomegranate juice (PJ) has a possible anti-inflammatory effect because of its polyphenol content and antioxidants. However, the anti-inflammatory effect of PJ in randomized controlled trials (RCTs) has not been consistent. A previous meta-analysis conducted in 2016 reported a nonsignificant lowering effect of PJ on C-reactive protein (CRP) levels. This systematic review and meta-analysis aim to update the pooled effect size of PJ supplementation on CRP levels in RCT studies. PubMed, Scopus, and Web of Science databases were comprehensively searched until July 2023. Eligible studies were found by screening, their relevant data was extracted, and a risk of bias assessment was performed. The pooled effect size was calculated using a random effect model as the weighted mean difference (WMD) with a 95% confidence interval. This systematic review included 11 studies with 13 effect sizes and 696 participants. Meta-analysis showed that PJ supplementation led to a significant decrease in CRP levels compared to control groups (WMD: -2.55 mg/L; 95%CI: -3.44 to -1.66; p < 0.001). Subgroup analysis demonstrated the significant reduction effect of PJ on CRP levels in studies conducted on the both sexes or only females as well as Iranian population, individuals with 40 years≤, type 2 diabetes, polycystic ovary syndrome, or trials that intervened with PJ dosage of <250 ml/day. Meta-regression and dose-response analysis reported a nonsignificant linear and nonlinear relationship between intervention characteristics (duration and dose of PJ) and CRP changes. The current meta-analysis revealed that PJ supplemantation has a beneficial effect in improving CRP levels. It is recommended to understand this effect better, and find the optimal dose and duration of PJ supplementation to reduce CRP levels in the blood, and repeat meta-analysis after related RCTs are available. For the final proof of these effects, more detailed human studies are needed.
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Affiliation(s)
| | - Mohammad Rashidmayvan
- Department of Nutrition, Food Sciences and Clinical Biochemistry, School of Medicine, Social Determinants of Health Research Center, Gonabad University of Medical Science, Gonabad, Iran
| | - Naseh Pahlavani
- Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
- Social Determinants of Health Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
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Nguyen NHT, Phan HT, Le PM, Nguyen LHT, Do TT, Phan TPT, Van Le T, Dang TM, Phan CNL, Dang TLT, Truong NH. Safety and efficacy of autologous adipose tissue-derived stem cell transplantation in aging-related low-grade inflammation patients: a single-group, open-label, phase I clinical trial. Trials 2024; 25:309. [PMID: 38715140 PMCID: PMC11077870 DOI: 10.1186/s13063-024-08128-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 04/22/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Inflamm-aging is associated with the rate of aging and is significantly related to diseases such as Alzheimer's disease, Parkinson's disease, atherosclerosis, heart disease, and age-related degenerative diseases such as type II diabetes and osteoporosis. This study aims to evaluate the safety and efficiency of autologous adipose tissue-derived mesenchymal stem cell (AD-MSC) transplantation in aging-related low-grade inflammation patients. METHODS This study is a single-group, open-label, phase I clinical trial in which patients treated with 2 infusions (100 million cells i.v) of autologous AD-MSCs were initially evaluated in 12 inflamm-aging patients who concurrently had highly proinflammatory cytokines and 2 of the following 3 diseases: diabetes, dyslipidemia, and obesity. The treatment effects were evaluated based on plasma cytokines. RESULTS During the study's follow-up period, no adverse effects were observed in AD-MSC injection patients. Compared to baseline (D-44), the inflammatory cytokines IL-1α, IL-1β, IL-8, IL-6, and TNF-α were significantly reduced after 180 days (D180) of MSC infusion. IL-4/IL-10 at 90 days (D90) and IL-2/IL-10 at D180 increased, reversing the imbalance between proinflammatory and inflammatory ratios in the patients. CONCLUSION AD-MSCs represent a potential intervention to prevent age-related inflammation in patients. TRIAL REGISTRATION ClinicalTrials.gov number is NCT05827757, first registered on 13th Oct 2020.
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Affiliation(s)
| | - Hao Thanh Phan
- DNA International General Hospital, Ho Chi Minh City, 700000, Vietnam
| | - Phong Minh Le
- DNA International General Hospital, Ho Chi Minh City, 700000, Vietnam
| | | | - Thuy Thi Do
- DNA International General Hospital, Ho Chi Minh City, 700000, Vietnam
| | | | - Trinh Van Le
- Laboratory of Stem Cell Research and Application, University of Science, VNU HCM, Ho Chi Minh City, 700000, Vietnam
- Viet Nam National University, Ho Chi Minh City, 700000, Vietnam
| | - Thanh Minh Dang
- Laboratory of Stem Cell Research and Application, University of Science, VNU HCM, Ho Chi Minh City, 700000, Vietnam
- Viet Nam National University, Ho Chi Minh City, 700000, Vietnam
| | - Chinh-Nhan Lu Phan
- Stem Cell Institute, University of Science, VNU HCM, Ho Chi Minh City, 700000, Vietnam
- Viet Nam National University, Ho Chi Minh City, 700000, Vietnam
| | - Tung-Loan Thi Dang
- Faculty of Biology and Biotechnology, University of Science, VNU HCM, Ho Chi Minh City, 700000, Vietnam
- Viet Nam National University, Ho Chi Minh City, 700000, Vietnam
| | - Nhung Hai Truong
- Faculty of Biology and Biotechnology, University of Science, VNU HCM, Ho Chi Minh City, 700000, Vietnam.
- Viet Nam National University, Ho Chi Minh City, 700000, Vietnam.
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Baek J, Shin HS, Suk K, Lee WH. LINC01686 affects LPS-induced cytokine expression via the miR-18a-5p/A20/STAT1 axis in THP-1 cells. Immun Inflamm Dis 2024; 12:e1234. [PMID: 38578001 PMCID: PMC10996380 DOI: 10.1002/iid3.1234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 02/20/2024] [Accepted: 03/13/2024] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND AND OBJECTIVE Long noncoding RNAs (lncRNAs) are crucial in regulating various physiological and pathological processes, including immune responses. LINC01686 is a lncRNA with previously uncharacterized functions in immune regulation. This study aims to investigate the function of LINC01686 in lipopolysaccharide (LPS)-induced inflammatory responses in the human monocytic leukemia cell line THP-1 and its potential regulatory mechanisms involving miR-18a-5p and the anti-inflammatory protein A20. METHOD THP-1 cells were stimulated with LPS to induce inflammatory responses, followed by analysis of LINC01686 expression levels. The role of LINC01686 in regulating the expression of interleukin (IL)-6, IL-8, A20, and signal transducer and activator of transcription 1 (STAT1) was examined using small interfering RNA-mediated knockdown. Additionally, the involvement of miR-18a-5p in LINC01686-mediated regulatory pathways was assessed by transfection with decoy RNAs mimicking the miR-18a-5p binding sites of LINC01686 or A20 messenger RNA. RESULTS LINC01686 expression was upregulated in THP-1 cells following LPS stimulation. Suppression of LINC01686 enhanced LPS-induced expression of IL-6 and IL-8, mediated through increased production of reactive oxygen species. Moreover, LINC01686 knockdown upregulated the expression and activation of IκB-ζ, STAT1, and downregulated A20 expression. Transfection with decoy RNAs reversed the effects of LINC01686 suppression on A20, STAT1, IL-6, and IL-8 expression, highlighting the role of LINC01686 in sponging miR-18a-5p and regulating A20 expression. CONCLUSION This study provides the first evidence that LINC01686 plays a critical role in modulating LPS-induced inflammatory responses in THP-1 cells by sponging miR-18a-5p, thereby regulating the expression and activation of A20 and STAT1. These findings shed light on the complex regulatory mechanisms involving lncRNAs in immune responses and offer potential therapeutic targets for inflammatory diseases.
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Affiliation(s)
- Jongwon Baek
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, South Korea
| | - Hyeung-Seob Shin
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, South Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science & Engineering Institute, BK21 FOUR KNU Biomedical Convergence Program, Kyungpook National University School of Medicine, Daegu, South Korea
| | - Won-Ha Lee
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, South Korea
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Giunta S, Xia S, Pelliccioni G, Olivieri F. Autonomic nervous system imbalance during aging contributes to impair endogenous anti-inflammaging strategies. GeroScience 2024; 46:113-127. [PMID: 37821752 PMCID: PMC10828245 DOI: 10.1007/s11357-023-00947-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/13/2023] [Indexed: 10/13/2023] Open
Abstract
Inflammaging refers to the age-related low grade, sterile, chronic, systemic, and long-lasting subclinical, proinflammatory status, currently recognized as the main risk factor for development and progression of the most common age-related diseases (ARDs). Extensive investigations were focused on a plethora of proinflammatory stimuli that can fuel inflammaging, underestimating and partly neglecting important endogenous anti-inflammaging mechanisms that could play a crucial role in such age-related proinflammatory state. Studies on autonomic nervous system (ANS) functions during aging highlighted an imbalance toward an overactive sympathetic nervous system (SNS) tone, promoting proinflammatory conditions, and a diminished parasympathetic nervous system (PNS) activity, playing anti-inflammatory effects mediated by the so called cholinergic anti-inflammatory pathway (CAP). At the molecular level, CAP is characterized by signals communicated via the vagus nerve (with the possible involvement of the splenic nerves) through acetylcholine release to downregulate the inflammatory actions of macrophages, key players of inflammaging. Notably, decreased vagal function and increased burden of activated/senescent macrophages (macrophaging) probably precede the development of several age-related risk factors and diseases, while increased vagal function and reduced macrophaging could be associated with relevant reduction of risk profiles. Hypothalamic-pituitary-adrenal axis (HPA axis) is another pathway related to ANS promoting some anti-inflammatory response mainly through increased cortisol levels. In this perspective review, we highlighted that CAP and HPA, representing broadly "anti-inflammaging" mechanisms, have a reduced efficacy and lose effectiveness in aged people, a phenomenon that could contribute to fuel inflammaging. In this framework, strategies aimed to re-balance PNS/SNS activities could be explored to modulate systemic inflammaging especially at an early subclinical stage, thus increasing the chances to reach the extreme limit of human lifespan in healthy status.
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Affiliation(s)
- Sergio Giunta
- Casa Di Cura Prof. Nobili (Gruppo Garofalo (GHC)), Castiglione Dei Pepoli, Bologna, Italy
| | - Shijin Xia
- Department of Geriatrics, Shanghai Institute of Geriatrics, Huadong Hospital, Fudan University, Shanghai, China
| | | | - Fabiola Olivieri
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica Delle Marche, Via Tronto 10/A, 60126, Ancona, Italy.
- Clinical Laboratory and Molecular Diagnostic, IRCCS INRCA, Ancona, Italy.
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Zhang HJ, Wang BH, Wang X, Huang CP, Xu SM, Wang JL, Huang TE, Xiao WL, Tian XL, Lan XQ, Wang QQ, Xiang Y. Handelin alleviates cachexia- and aging-induced skeletal muscle atrophy by improving protein homeostasis and inhibiting inflammation. J Cachexia Sarcopenia Muscle 2024; 15:173-188. [PMID: 38009816 PMCID: PMC10834327 DOI: 10.1002/jcsm.13381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 09/07/2023] [Accepted: 09/25/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Handelin is a bioactive compound from Chrysanthemum indicum L. that improves motor function and muscle integrity during aging in Caenorhabditis elegans. This study aimed to further evaluate the protective effects and molecular mechanisms of handelin in a mouse muscle atrophy model induced by cachexia and aging. METHODS A tumour necrosis factor (TNF)-α-induced atrophy model was used to examine handelin activity in cultured C2C12 myotubes in vitro. Lipopolysaccharide (LPS)-treated 8-week-old model mice and 23-month-old (aged) mice were used to examine the therapeutic effects of handelin on cachexia- and aging-induced muscle atrophy, respectively, in vivo. Protein and mRNA expressions were analysed by Western blotting, ELISA and quantitative PCR, respectively. Skeletal muscle mass was measured by histological analysis. RESULTS Handelin treatment resulted in an upregulation of protein levels of early (MyoD and myogenin) and late (myosin heavy chain, MyHC) differentiation markers in C2C12 myotubes (P < 0.05), and enhanced mitochondrial respiratory (P < 0.05). In TNF-α-induced myotube atrophy model, handelin maintained MyHC protein levels, increased insulin-like growth factor (Igf1) mRNA expression and phosphorylated protein kinase B protein levels (P < 0.05). Handelin also reduced atrogin-1 expression, inhibited nuclear factor-κB activation and reduced mRNA levels of interleukin (Il)6, Il1b and chemokine ligand 1 (Cxcl1) (P < 0.05). In LPS-treated mice, handelin increased body weight (P < 0.05), the weight (P < 0.01) and cross-sectional area (CSA) of the soleus muscle (P < 0.0001) and improved motor function (P < 0.05). In aged mice, handelin slightly increased the weight of the tibialis anterior muscle (P = 0.06) and CSA of the tibialis anterior and gastrocnemius muscles (P < 0.0001). In the tibialis anterior muscle of aged mice, handelin upregulated mRNA levels of Igf1 (P < 0.01), anti-inflammatory cytokine Il10 (P < 0.01), mitochondrial biogenesis genes (P < 0.05) and antioxidant-related enzymes (P < 0.05) and strengthened Sod and Cat enzyme activity (P < 0.05). Handelin also reduced lipid peroxidation and protein carbonylation, downregulated mRNA levels of Fbxo32, Mstn, Cxcl1, Il1b and Tnf (P < 0.05), and decreased IL-1β levels in serum (P < 0.05). Knockdown of Hsp70 or using an Hsp70 inhibitor abolished the ameliorating effects of handelin on myotube atrophy. CONCLUSIONS Handelin ameliorated cachexia- and aging-induced skeletal muscle atrophy in vitro and in vivo, by maintaining homeostasis of protein synthesis and degradation, possibly by inhibiting inflammation. Handelin is a potentially promising drug candidate for the treatment of muscle wasting.
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Affiliation(s)
- Hui-Jie Zhang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Ben-Hui Wang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Xiang Wang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Chun-Ping Huang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Si-Man Xu
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Jia-Li Wang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Tian-E Huang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Wan-Li Xiao
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Xiao-Li Tian
- Department of Aging and Vascular Diseases, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Xin-Qiang Lan
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Qi-Quan Wang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
| | - Yang Xiang
- Department of Metabolic Control and Aging, Human Aging Research Institute and School of Life Science, Nanchang University and Jiangxi Key Laboratory of Human Aging, Nanchang, China
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11
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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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12
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Guo W, Ortega EF, Wu D, Li L, Bronson RT, Boehm SK, Meydani SN. Life-long consumption of high level of fruits and vegetables reduces tumor incidence and extends median lifespan in mice. Front Nutr 2023; 10:1286792. [PMID: 38125727 PMCID: PMC10731956 DOI: 10.3389/fnut.2023.1286792] [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: 08/31/2023] [Accepted: 11/16/2023] [Indexed: 12/23/2023] Open
Abstract
Objective Epidemiological studies suggest that consumption of fruits and vegetables (FV) is negatively associated with the incidence of certain cancers and mortality. However, a causal relationship has not been demonstrated. Thus, we investigated the effect of life-long consumption of high level of FV on median lifespan, key biological functions, and pathologies in mice fed low-fat (LF) or high-fat (HF) diets and the underlying mechanisms. Methods Using a 2 × 2 factorial design, 5 weeks-old male C57BL/6J mice were randomly assigned to one of four groups (n = 60/group): LF (LF-C, 10% kcal fat), HF (HF-C, 45% kcal fat) or each supplemented with 15% (w/w) of a unique FV mixture (LF + FV and HF + FV, respectively). Mice were euthanized when one group reached 50% mortality. Body weight and composition, tumor incidence, and death were monitored. Blood levels of lipids and pro-inflammatory cytokines were assessed. Results After 21 months of feeding, HF-C group reached 50% mortality, at which time mice in all groups were terminated. HF-C had higher mortality (50.0%) compared to the LF-C group (18.3%, p = 0.0008). Notably, HF-FV had lower mortality (23.3%) compared to HF-C group (p = 0.008); there was no significant difference in mortality between HF-FV and LF-C groups. Tumors were found in all groups, and were predominantly present in the liver, followed by those of lung, intestine, and seminal vesicle. Tumor incidence in the HF-C group (73.3%) was higher than that in LF-C group (30.0%, p < 0.0001). HF + FV group had 23.3% lower tumor incidence compared to the HF-C group (p = 0.014). No significant difference in tumor incidence between the LF-C and LF + FV groups was observed. Long-term FV supplementation reduced systemic inflammation and blood lipids. Conclusion We provide the first causal evidence that life-long intake of a diet, containing a high level and large variety of FV, decreases tumor incidence and extends median lifespan in mice fed a western-style high-fat diet. These effects of FV are at least in part due to reduced blood levels of pro-inflammatory cytokines and improved dyslipidemia.
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Affiliation(s)
- Weimin Guo
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Edwin F. Ortega
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Dayong Wu
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Lijun Li
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Roderick T. Bronson
- Rodent Histopathology Core, Harvard Medical School, Boston, MA, United States
| | - Sarah K. Boehm
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Simin Nikbin Meydani
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
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13
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Zhu H, Shen F, Liao T, Qian H, Liu Y. Immunosenescence and macrophages: From basics to therapeutics. Int J Biochem Cell Biol 2023; 165:106479. [PMID: 37866656 DOI: 10.1016/j.biocel.2023.106479] [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: 06/28/2023] [Revised: 10/06/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Ageing decreases the function of the immune system and increases susceptibility to some chronic, infectious, and autoimmune diseases. Senescence cells, which produce senescence-associated secretory phenotypes (SASPs), can activate the innate and adaptive immune responses. Macrophages are among the most abundant innate immune cell types in senescent microenvironments. Senescence-associated macrophages, recruited by SASPs, play a vital role in establishing the essential microenvironments for maintaining tissue homeostasis. However, it's important to note that these senescence-associated macrophages can also influence senescent processes, either by enhancing or impeding the functions of tissue-resident senescent cells. In this discussion, we describe the potential targets of immunosenescence and shed light on the probable mechanisms by which macrophages influence cellular senescence. Furthermore, we analyze their dual function in both clearing senescent cells and modulating age-related diseases. This multifaceted influence operates through processes including heightened inflammation, phagocytosis, efferocytosis, and autophagy. Given the potential off-target effects and immune evasion mechanisms associated with traditional anti-ageing strategies (senolytics and senomorphics), 'resetting' immune system tolerance or targeting senescence-related macrophage functions (i.e., phagocytotic capacity and immunosurveillance) will inform treatment of age-related diseases. Therefore, we review recent advances in the use of macrophage therapeutics to treat ageing and age-associated disorders, and outline the key gaps in this field.
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Affiliation(s)
- Hongkang Zhu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | | | - Tingting Liao
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China
| | - He Qian
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, China.
| | - Yu Liu
- Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi 214062, China.
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14
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Jo MJ, Lee JK, Kim JE, Ko GJ. Molecular Mechanisms Associated with Aging Kidneys and Future Perspectives. Int J Mol Sci 2023; 24:16912. [PMID: 38069234 PMCID: PMC10707287 DOI: 10.3390/ijms242316912] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
The rapid growth of the elderly population is making the need for extensive and advanced information about age-related organ dysfunction a crucial research area. The kidney is one of the organs most affected by aging. Aged kidneys undergo functional decline, characterized by a reduction in kidney size, decreased glomerular filtration rate, alterations in renal blood flow, and increased inflammation and fibrosis. This review offers a foundation for understanding the functional and molecular mechanisms of aging kidneys and for selecting identifying appropriate targets for future treatments of age-related kidney issues.
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Affiliation(s)
- Min-Jee Jo
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
- Institute of Convergence New Drug Development, Korea University College of Medicine, Seoul 08308, Republic of Korea
| | - Joo-Kyung Lee
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
| | - Ji-Eun Kim
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
| | - Gang-Jee Ko
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
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15
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Soda K. Changes in Whole Blood Polyamine Levels and Their Background in Age-Related Diseases and Healthy Longevity. Biomedicines 2023; 11:2827. [PMID: 37893199 PMCID: PMC10604715 DOI: 10.3390/biomedicines11102827] [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: 07/12/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
The relationship between polyamines and healthy longevity has received much attention in recent years. However, conducting research without understanding the properties of polyamines can lead to unexpected pitfalls. The most fundamental consideration in conducting polyamine studies is that bovine serum used for cell culture contains bovine serum amine oxidase. Bovine serum amine oxidase, which is not inactivated by heat treatment, breaks down spermine and spermidine to produce the highly toxic aldehyde acrolein, which causes cell damage and activates autophagy. However, no such enzyme activity has been found in humans. Polyamine catabolism does not produce toxic aldehydes under normal conditions, but inflammation and some pathogens provoke an inducible enzyme, spermine oxidase, which only breaks down spermine to produce acrolein, resulting in cytotoxicity and the activation of autophagy. Therefore, spermine oxidase activation reduces spermine concentration and the ratio of spermine to spermidine, a feature recently reported in patients with age-related diseases. Spermine, which is increased by a long-term, continuous high polyamine diet, suppresses aberrant gene methylation and the pro-inflammatory status that progress with age and are strongly associated with the development of several age-related diseases and senescence. Changes in spermine concentration and the spermine/spermidine ratio should be considered as indicators of human health status.
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Affiliation(s)
- Kuniyasu Soda
- Saitama Medical Center, Jichi Medical University, Saitama 330-8503, Japan;
- Saitama Ken-o Hospital, Saitama 363-0008, Japan
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16
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Chaudhary MR, Chaudhary S, Sharma Y, Singh TA, Mishra AK, Sharma S, Mehdi MM. Aging, oxidative stress and degenerative diseases: mechanisms, complications and emerging therapeutic strategies. Biogerontology 2023; 24:609-662. [PMID: 37516673 DOI: 10.1007/s10522-023-10050-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/28/2023] [Indexed: 07/31/2023]
Abstract
Aging accompanied by several age-related complications, is a multifaceted inevitable biological progression involving various genetic, environmental, and lifestyle factors. The major factor in this process is oxidative stress, caused by an abundance of reactive oxygen species (ROS) generated in the mitochondria and endoplasmic reticulum (ER). ROS and RNS pose a threat by disrupting signaling mechanisms and causing oxidative damage to cellular components. This oxidative stress affects both the ER and mitochondria, causing proteopathies (abnormal protein aggregation), initiation of unfolded protein response, mitochondrial dysfunction, abnormal cellular senescence, ultimately leading to inflammaging (chronic inflammation associated with aging) and, in rare cases, metastasis. RONS during oxidative stress dysregulate multiple metabolic pathways like NF-κB, MAPK, Nrf-2/Keap-1/ARE and PI3K/Akt which may lead to inappropriate cell death through apoptosis and necrosis. Inflammaging contributes to the development of inflammatory and degenerative diseases such as neurodegenerative diseases, diabetes, cardiovascular disease, chronic kidney disease, and retinopathy. The body's antioxidant systems, sirtuins, autophagy, apoptosis, and biogenesis play a role in maintaining homeostasis, but they have limitations and cannot achieve an ideal state of balance. Certain interventions, such as calorie restriction, intermittent fasting, dietary habits, and regular exercise, have shown beneficial effects in counteracting the aging process. In addition, interventions like senotherapy (targeting senescent cells) and sirtuin-activating compounds (STACs) enhance autophagy and apoptosis for efficient removal of damaged oxidative products and organelles. Further, STACs enhance biogenesis for the regeneration of required organelles to maintain homeostasis. This review article explores the various aspects of oxidative damage, the associated complications, and potential strategies to mitigate these effects.
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Affiliation(s)
- Mani Raj Chaudhary
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Sakshi Chaudhary
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Yogita Sharma
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Thokchom Arjun Singh
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Alok Kumar Mishra
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Shweta Sharma
- Chitkara School of Health Sciences, Chitkara University, Chandigarh, Punjab, 140401, India
| | - Mohammad Murtaza Mehdi
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
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Arias C, Vásquez B, Salazar LA. Propolis as a Potential Therapeutic Agent to Counteract Age-Related Changes in Cartilage: An In Vivo Study. Int J Mol Sci 2023; 24:14272. [PMID: 37762574 PMCID: PMC10532056 DOI: 10.3390/ijms241814272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/05/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Aging is intricately linked to chronic low-grade systemic inflammation, which plays a significant role in various age-related conditions, including osteoarthritis (OA). The aging process significantly influences the development of OA due to alterations in cartilage composition, reduced proteoglycan content, dysregulation of growth factor signaling, and heightened oxidative stress. Propolis, a natural product renowned for its potent antioxidant and anti-inflammatory properties, has the potential to mitigate age-induced changes in cartilage. The primary objective of this study was to rigorously assess the impact of in vivo propolis treatment on the histopathological characteristics of knee articular cartilage in senescent rats. This study involved a cohort of twenty male Sprague-Dawley rats, randomly allocated into four distinct groups for comparative analysis: YR (control group consisting of young rats), SR (senescent rats), SR-EEP (senescent rats treated with an ethanolic extract of propolis, EEP), and SR-V (senescent rats administered with a control vehicle). This study employed comprehensive histological and stereological analyses of knee articular cartilage. Propolis treatment exhibited a significant capacity to alleviate the severity of osteoarthritis, enhance the structural integrity of cartilage, and augment chondrocyte density. These promising findings underscore the potential of propolis as a compelling therapeutic agent to counteract age-related alterations in cartilage and, importantly, to potentially forestall the onset of osteoarthritis.
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Affiliation(s)
- Consuelo Arias
- Escuela de Kinesiología, Facultad de Odontología y Ciencias de la Rehabilitación, Universidad San Sebastián, Santiago 8380000, Chile;
| | - Bélgica Vásquez
- Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile
- Centre of Excellence in Morphological and Surgical Studies, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile
| | - Luis A. Salazar
- Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco 4811230, Chile
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Zhang F, Xu J, Hu Y, Fang J, Yang M, Huang K, Xu W, He X. Diallyl trisulfide ameliorates bone loss and alters specific gut microbiota and serum metabolites in natural aging mice. Food Funct 2023; 14:7642-7653. [PMID: 37540026 DOI: 10.1039/d3fo01840g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Aging is a major cause of bone loss and osteoporosis. Diallyl trisulfide (DATS), one of the main organic sulfides in garlic oil, has been shown to alleviate arthritis in mice. However, further research is still needed to determine how DATS affects bone formation and bone loss in aging mice. Here, we established a mouse model of natural aging for dietary DATS intervention. DATS treatment improved the bone microstructure, including the disorganized arrangement of bone trabeculae and promoted collagen synthesis, as confirmed by micro-CT and histological analyses. The abundance of beneficial bacteria for bone formation, such as Clostridiaceae and Erysipelotrichaceae, and the microbial diversity and community richness were all altered by DATS, according to 16S rRNA sequencing data. 14 potential biomarkers and 9 important metabolic pathways were examined using serum metabolomics analysis. Additionally, there has been a significant reduction in sphingosine, which is directly associated with bone metabolism. The level of sphingosine and relative abundance of Clostridium were found to be negatively correlated by correlation analysis, indicating that bacteria may regulate bone reconstruction via influencing metabolites. Furthermore, Runx2 and β-catenin gene expression levels increased in bones, which may be related to the ameliorative mechanism of DATS. Our results suggested that DATS may prevent age-related bone loss by upregulating osteogenic gene expression through altering gut microbes and serum metabolism.
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Affiliation(s)
- Feng Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education; College of Food Science and Nutritional Engineering; China Agricultural University, Beijing 100083, China.
| | - Jia Xu
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education; College of Food Science and Nutritional Engineering; China Agricultural University, Beijing 100083, China.
| | - Yanzhou Hu
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education; College of Food Science and Nutritional Engineering; China Agricultural University, Beijing 100083, China.
| | - Jingjing Fang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education; College of Food Science and Nutritional Engineering; China Agricultural University, Beijing 100083, China.
| | - Minglan Yang
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kunlun Huang
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education; College of Food Science and Nutritional Engineering; China Agricultural University, Beijing 100083, China.
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), the Ministry of Agriculture and Rural Affairs of the P.R. China, Beijing, 100083, China
| | - Wentao Xu
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), the Ministry of Agriculture and Rural Affairs of the P.R. China, Beijing, 100083, China
- Department of Nutrition and Health, China Agricultural University, Beijing 100191, China
| | - Xiaoyun He
- Key Laboratory of Precision Nutrition and Food Quality, Key Laboratory of Functional Dairy, Ministry of Education; College of Food Science and Nutritional Engineering; China Agricultural University, Beijing 100083, China.
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), the Ministry of Agriculture and Rural Affairs of the P.R. China, Beijing, 100083, China
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Li J, Li D, Chen Y, Chen W, Xu J, Gao L. Gut Microbiota and Aging: Traditional Chinese Medicine and Modern Medicine. Clin Interv Aging 2023; 18:963-986. [PMID: 37351381 PMCID: PMC10284159 DOI: 10.2147/cia.s414714] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/08/2023] [Indexed: 06/24/2023] Open
Abstract
The changing composition of gut microbiota, much like aging, accompanies people throughout their lives, and the inextricable relationship between both has recently attracted extensive attention as well. Modern medical research has revealed that a series of changes in gut microbiota are involved in the aging process of organisms, which may be because gut microbiota modulates aging-related changes related to innate immunity and cognitive function. At present, there is no definite and effective method to delay aging. However, Nobel laureate Tu Youyou's research on artemisinin has inspired researchers to study the importance of Traditional Chinese Medicine (TCM). TCM, as an ancient alternative medicine, has unique advantages in preventive health care and in treating diseases as it already has formed an independent understanding of the aging system. TCM practitioners believe that the mechanism of aging is mainly deficiency, and pathological states such as blood stasis, qi stagnation and phlegm coagulation can exacerbate the process of aging, which involves a series of organs, including the brain, kidney, heart, liver and spleen. Our current understanding of aging has led us to realise that TCM can indeed make some beneficial changes, such as the improvement of cognitive impairment. However, due to the multi-component and multi-target nature of TCM, the exploration of its mechanism of action has become extremely complex. While analysing the relationship between gut microbiota and aging, this review explores the similarities and differences in treatment methods and mechanisms between TCM and Modern Medicine, in order to explore a new approach that combines TCM and Modern Medicine to regulate gut microbiota, improve immunity and delay aging.
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Affiliation(s)
- Jinfan Li
- Department of First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, 250000, People’s Republic of China
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Dong Li
- Department of Diabetes, Licheng District Hospital of Traditional Chinese Medicine, Jinan, Shandong, 250100, People’s Republic of China
| | - Yajie Chen
- Department of Rehabilitation and Health Care, Jinan Vocational College of Nursing, Jinan, Shandong, 250100, People’s Republic of China
| | - Wenbin Chen
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
| | - Jin Xu
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
| | - Ling Gao
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education, Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong, 250021, People’s Republic of China
- Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong, 250021, People’s Republic of China
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20
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Arendash G, Cao C. Transcranial Electromagnetic Wave Treatment: A Fountain of Healthy Longevity? Int J Mol Sci 2023; 24:ijms24119652. [PMID: 37298603 DOI: 10.3390/ijms24119652] [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: 05/04/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Most diseases of older age have as their common denominator a dysfunctional immune system, wherein a low, chronic level of inflammation is present due to an imbalance of pro-inflammatory cytokines over anti-inflammatory cytokines that develops during aging ("inflamm-aging"). A gerotherapeutic that can restore the immune balance to that shared by young/middle-aged adults and many centenarians could reduce the risk of those age-related diseases and increase healthy longevity. In this perspectives paper, we discuss potential longevity interventions that are being evaluated and compare them to a novel gerotherapeutic currently being evaluated in humans-Transcranial Electromagnetic Wave Treatment (TEMT). TEMT is provided non-invasively and safety through a novel bioengineered medical device-the MemorEM-that allows for near complete mobility during in-home treatments. Daily TEMT to mild/moderate Alzheimer's Disease (AD) patients over a 2-month period rebalanced 11 of 12 cytokines in blood back to that of normal aged adults. A very similar TEMT-induced rebalancing of cytokines occurred in the CSF/brain for essentially all seven measurable cytokines. Overall inflammation in both blood and brain was dramatically reduced by TEMT over a 14-27 month period, as measured by C-Reactive Protein. In these same AD patients, a reversal of cognitive impairment was observed at 2 months into treatment, while cognitive decline was stopped over a 2½ year period of TEMT. Since most age-related diseases have the commonality of immune imbalance, it is reasonable to postulate that TEMT could rebalance the immune system in many age-related diseases as it appears to do in AD. We propose that TEMT has the potential to reduce the risk/severity of age-related diseases by rejuvenating the immune system to a younger age, resulting in reduced brain/body inflammation and a substantial increase in healthy longevity.
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Affiliation(s)
- Gary Arendash
- NeuroEM Therapeutics, Inc., 501 E. Kennedy Blvd., Suite 650, Tampa, FL 33602, USA
| | - Chuanhai Cao
- Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
- MegaNano Biotech, 3802 Spectrum Blvd., Suite 122, Tampa, FL 33612, USA
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21
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Zhu X, Shen J, Feng S, Huang C, Wang H, Huo F, Liu H. Akkermansia muciniphila, which is enriched in the gut microbiota by metformin, improves cognitive function in aged mice by reducing the proinflammatory cytokine interleukin-6. MICROBIOME 2023; 11:120. [PMID: 37254162 DOI: 10.1186/s40168-023-01567-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 05/05/2023] [Indexed: 06/01/2023]
Abstract
BACKGROUND Metformin, a type 2 diabetes treatment, improves the cognitive function of aged mice; however, whether the protective effects of metformin on cognitive function in aged mice are associated with the gut microbiome is poorly understood. Although some studies suggest that the gut microbe composition influences cognitive function and that manipulating the gut microbiota might protect against age-related cognitive dysfunction, there is no direct evidence to validate that the gut microbiota mediates the effect of metformin on cognitive improvement. RESULTS In this study, we show that the gut microbiota is altered by metformin, which is necessary for protection against ageing-associated cognitive function declines in aged mice. Mice treated with antibiotics did not exhibit metformin-mediated cognitive function protection. Moreover, treatment with Akkermansia muciniphila, which is enriched by metformin, improved cognitive function in aged mice. Mechanistically, A. muciniphila decreased pro-inflammatory-associated pathways, particularly that of the pro-inflammatory cytokine interleukin (IL)-6, in both the peripheral blood and hippocampal profiles, which was correlated with cognitive function improvement. An IL-6 antibody protected cognitive function, and an IL-6 recombinant protein abolished the protective effect of A. muciniphila on cognitive function in aged mice. CONCLUSION This study reveals that A. muciniphila, which is mediated in the gut microbiota by metformin, modulates inflammation-related pathways in the host and improves cognitive function in aged mice by reducing the pro-inflammatory cytokine IL-6. Video Abstract.
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Affiliation(s)
- Xiaoqi Zhu
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China
| | - Junyan Shen
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China
| | - Shengyu Feng
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China
| | - Ce Huang
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China
| | - Hao Wang
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China
| | - Fengjiao Huo
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China
| | - Hailiang Liu
- Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200123, China.
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi, 832003, China.
- Institute of Advanced Biotechnology, Southern University of Science and Technology, Shenzhen, 518055, China.
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22
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Sheikh-Wu SF, Liang Z, Downs CA. The Relationship Between Telomeres, Cognition, Mood, and Physical Function: A Systematic Review. Biol Res Nurs 2023; 25:227-239. [PMID: 36222081 DOI: 10.1177/10998004221132287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose: Cognitive, affective, and physical symptoms and alterations in their function are seen across chronic illnesses. Data suggest that environmental, psychological, and physiological factors contribute to symptom experience, potentially through loss of telomeres (telomere attrition), structures at the ends of chromosomes. Telomere length is affected by many factors including environmental (e.g., exercise, diet, smoking) and physiological (e.g., response to stress), as well as from oxidative damage and inflammation that occurs in many disease processes. Moreover, telomere attrition is associated with chronic disease (cancer, cardiovascular disease, Alzheimer's disease) and predicts higher morbidity and mortality rates. However, findings are inconsistent among telomere roles and relationships with health outcomes. This article aims to synthesize the current state-of-the-science of telomeres and their relationship with cognitive, affective, and physical function and symptoms. Method: A comprehensive literature search was performed in two databases: CINAHL and PUBMED. A total of 33 articles published between 2000 and 2022 were included in the final analysis. Results: Telomere attrition is associated with various changes in cognitive, affective, and physical function and symptoms. However, findings are inconsistent. Interventional studies (e.g., meditation and exercise) may affect telomere attrition, potentially impacting health outcomes. Conclusion: Nursing research and practice are at the forefront of furthering the understanding of telomeres and their relationships with cognitive, affective, and physical function and symptoms. Future interventions targeting modifiable risk factors may be developed to improve health outcomes across populations.
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Affiliation(s)
| | - Zhan Liang
- 5452University of Miami, Coral Gables, FL, USA
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23
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Wiesenthal AA, Legroux TM, Richter C, Junker BH, Hecksteden A, Kessler SM, Hoppstädter J, Kiemer AK. Endotoxin Tolerance Acquisition and Altered Hepatic Fatty Acid Profile in Aged Mice. BIOLOGY 2023; 12:biology12040530. [PMID: 37106731 PMCID: PMC10135800 DOI: 10.3390/biology12040530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/13/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023]
Abstract
(1) Background: Aging is linked to an altered immune response and metabolism. Inflammatory conditions, such as sepsis, COVID-19, and steatohepatitis are more prevalent in the elderly and steatosis is linked both to severe COVID-19 and sepsis. We hypothesized that aging is linked to a loss of endotoxin tolerance, which normally protects the host from excessive inflammation, and that this is accompanied by elevated levels of hepatic lipids. (2) Methods: An in vivo lipopolysaccharide (LPS) tolerance model in young and old mice was used and the cytokine serum levels were measured by ELISA. Cytokine and toll-like receptor gene expression was determined by qPCR in the lungs and the liver; hepatic fatty acid composition was assessed by GC–MS. (3) Results: The old mice showed a distinct potential for endotoxin tolerance as suggested by the serum cytokine levels and gene expression in the lung tissue. Endotoxin tolerance was less pronounced in the livers of the aged mice. However, the fatty acid composition strongly differed in the liver tissues of the young and old mice with a distinct change in the ratio of C18 to C16 fatty acids. (4) Conclusions: Endotoxin tolerance is maintained in advanced age, but changes in the metabolic tissue homeostasis may lead to an altered immune response in old individuals.
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Affiliation(s)
- Amanda A. Wiesenthal
- Pharmaceutical Biology, Department of Pharmacy, Saarland University, Campus C2.3, D-66123 Saarbrücken, Germany
- Marine Biology, Institute of Biological Sciences, University of Rostock, D-18059 Rostock, Germany
| | - Thierry M. Legroux
- Pharmaceutical Biology, Department of Pharmacy, Saarland University, Campus C2.3, D-66123 Saarbrücken, Germany
| | - Chris Richter
- Biosynthesis of Active Substances, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle, Germany
| | - Björn H. Junker
- Biosynthesis of Active Substances, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle, Germany
| | - Anne Hecksteden
- Institute of Sports and Preventive Medicine, Saarland University, D-66123 Saarbrücken, Germany
| | - Sonja M. Kessler
- Experimental Pharmacology for Natural Sciences, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle, Germany
| | - Jessica Hoppstädter
- Pharmaceutical Biology, Department of Pharmacy, Saarland University, Campus C2.3, D-66123 Saarbrücken, Germany
| | - Alexandra K. Kiemer
- Pharmaceutical Biology, Department of Pharmacy, Saarland University, Campus C2.3, D-66123 Saarbrücken, Germany
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24
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Sousa NS, Brás MF, Antunes IB, Lindholm P, Neves J, Sousa-Victor P. Aging disrupts MANF-mediated immune modulation during skeletal muscle regeneration. NATURE AGING 2023; 3:585-599. [PMID: 37118549 DOI: 10.1038/s43587-023-00382-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 02/16/2023] [Indexed: 04/30/2023]
Abstract
Age-related decline in skeletal muscle regenerative capacity is multifactorial, yet the contribution of immune dysfunction to regenerative failure is unknown. Macrophages are essential for effective debris clearance and muscle stem cell activity during muscle regeneration, but the regulatory mechanisms governing macrophage function during muscle repair are largely unexplored. Here, we uncover a new mechanism of immune modulation operating during skeletal muscle regeneration that is disrupted in aged animals and relies on the regulation of macrophage function. The immune modulator mesencephalic astrocyte-derived neurotrophic factor (MANF) is induced following muscle injury in young mice but not in aged animals, and its expression is essential for regenerative success. Regenerative impairments in aged muscle are associated with defects in the repair-associated myeloid response similar to those found in MANF-deficient models and could be improved through MANF delivery. We propose that restoring MANF levels is a viable strategy to improve myeloid response and regenerative capacity in aged muscle.
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Affiliation(s)
- Neuza S Sousa
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Margarida F Brás
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Inês B Antunes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Päivi Lindholm
- Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Joana Neves
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
| | - Pedro Sousa-Victor
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
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25
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Ji S, Xiong M, Chen H, Liu Y, Zhou L, Hong Y, Wang M, Wang C, Fu X, Sun X. Cellular rejuvenation: molecular mechanisms and potential therapeutic interventions for diseases. Signal Transduct Target Ther 2023; 8:116. [PMID: 36918530 PMCID: PMC10015098 DOI: 10.1038/s41392-023-01343-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/16/2022] [Accepted: 01/19/2023] [Indexed: 03/16/2023] Open
Abstract
The ageing process is a systemic decline from cellular dysfunction to organ degeneration, with more predisposition to deteriorated disorders. Rejuvenation refers to giving aged cells or organisms more youthful characteristics through various techniques, such as cellular reprogramming and epigenetic regulation. The great leaps in cellular rejuvenation prove that ageing is not a one-way street, and many rejuvenative interventions have emerged to delay and even reverse the ageing process. Defining the mechanism by which roadblocks and signaling inputs influence complex ageing programs is essential for understanding and developing rejuvenative strategies. Here, we discuss the intrinsic and extrinsic factors that counteract cell rejuvenation, and the targeted cells and core mechanisms involved in this process. Then, we critically summarize the latest advances in state-of-art strategies of cellular rejuvenation. Various rejuvenation methods also provide insights for treating specific ageing-related diseases, including cellular reprogramming, the removal of senescence cells (SCs) and suppression of senescence-associated secretory phenotype (SASP), metabolic manipulation, stem cells-associated therapy, dietary restriction, immune rejuvenation and heterochronic transplantation, etc. The potential applications of rejuvenation therapy also extend to cancer treatment. Finally, we analyze in detail the therapeutic opportunities and challenges of rejuvenation technology. Deciphering rejuvenation interventions will provide further insights into anti-ageing and ageing-related disease treatment in clinical settings.
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Affiliation(s)
- Shuaifei Ji
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Mingchen Xiong
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Huating Chen
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Yiqiong Liu
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Laixian Zhou
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Yiyue Hong
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Mengyang Wang
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China
| | - Chunming Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, 999078, Macau SAR, China.
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China.
| | - Xiaoyan Sun
- Research Center for Tissue Repair and Regeneration Affiliated to Medical Innovation Research Department and 4th Medical Center, PLA General Hospital and PLA Medical College; PLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, 2019RU051, Beijing, 100048, P. R. China.
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26
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Matacchione G, Borgonetti V, Ramini D, Silvestrini A, Ojetti M, Galeotti N, Olivieri F. Zingiber officinale Roscoe Rhizome Extract Exerts Senomorphic and Anti-Inflammatory Activities on Human Endothelial Cells. BIOLOGY 2023; 12:biology12030438. [PMID: 36979130 PMCID: PMC10045365 DOI: 10.3390/biology12030438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
Aging is related to a low-grade and sterile inflammation called inflammaging, recognized as the main risk factor for age-related disease (ARD) development. Inflammaging is fostered by the repeated activation of immune cells, as well as by the accumulation of senescent cells. Recently, a number of natural compounds have gained attention to be tested as anti-aging therapies, based on their anti-inflammatory activity and/or ability to reduce the pro-inflammatory secretome of senescent cells (senomorphyc activity). Here, we investigated the anti-inflammatory and senomorphic properties of an Asian-native Zingiber officinale Roscoe extract (ZOE), commonly consumed as a food spice and herbal medicine. We employed two models of primary endothelial cells (HUVECs), such as the replicative-senescence and LPS-induced response, to investigate the anti-inflammatory/senomorphic effect of ZOE, and one cellular model of neuroinflammation, i.e., immortalized murine microglial cells (BV2). First, we found that the ZOE treatment induced the inhibition of NF-kB activation in BV2 cells. Among the constituents of ZOE, we showed that the terpenoid-enriched fraction (ZTE) was the component able to counteract the phosphorylation of NF-kB(p65), while 6-gingerol (GIN) and 6-shogaol (SHO) did not produce any significant effect. Further, we observed that the treatment with 10 µg/mL of ZOE exerted anti-inflammatory activity on LPS-stimulated young (y)HUVEC and senomorphyc activity on replicative senescent (s)HUVEC, significantly reducing the expression levels of IL-1β, TNF -α, IL-8, MCP-1, and ICAM-1. Moreover, the ZTE treatment was able to significantly reduce the IL-8 levels secreted in the medium of both LPS-stimulated yHUVEC and sHUVEC. Overall, our data suggest a potential protective role of ZOE on neuroinflammation and endothelial inflammation/activation, thus suggesting its potential relevance in delaying/postponing ARD development and progression, characterized by endothelial dysfunction.
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Affiliation(s)
- Giulia Matacchione
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Via Tronto 10/A, 60126 Ancona, Italy
- Correspondence: ; Tel.: +071-2206243
| | - Vittoria Borgonetti
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, 50139 Florence, Italy
| | - Deborah Ramini
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, via Birrarelli 8, 60121 Ancona, Italy
| | - Andrea Silvestrini
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Via Tronto 10/A, 60126 Ancona, Italy
| | - Marta Ojetti
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Via Tronto 10/A, 60126 Ancona, Italy
| | - Nicoletta Galeotti
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, 50139 Florence, Italy
| | - Fabiola Olivieri
- Department of Clinical and Molecular Sciences, Università Politecnica Delle Marche, Via Tronto 10/A, 60126 Ancona, Italy
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, via Birrarelli 8, 60121 Ancona, Italy
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Positive Correlation between Relative Concentration of Spermine to Spermidine in Whole Blood and Skeletal Muscle Mass Index: A Possible Indicator of Sarcopenia and Prognosis of Hemodialysis Patients. Biomedicines 2023; 11:biomedicines11030746. [PMID: 36979725 PMCID: PMC10045508 DOI: 10.3390/biomedicines11030746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/17/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
Several mechanisms strictly regulate polyamine concentration, and blood polyamines are excreted in urine. This indicates polyamine accumulation in renal dysfunction, and studies have shown increased blood polyamine concentrations in patients with renal failure. Hemodialysis (HD) may compensate for polyamine excretion; however, little is known about polyamine excretion. We measured whole-blood polyamine levels in patients on HD and examined the relationship between polyamine concentrations and indicators associated with health status. Study participants were 59 hemodialysis patients (median age: 70.0 years) at Minami-Uonuma City Hospital and 26 healthy volunteers (median age: 44.5 years). Whole-blood spermidine levels were higher and spermine/spermidine ratio (SPM/SPD) was lower in hemodialysis patients. Hemodialysis showed SPD efflux into the dialysate; however, blood polyamine levels were not altered by hemodialysis and appeared to be minimally excreted. The skeletal muscle mass index (SMI), which was positively correlated with hand grip strength and serum albumin level, was positively correlated with SPM/SPD. Given that sarcopenia and low serum albumin levels are reported risk factors for poor prognosis in HD patients, whole blood SPM/SPD in hemodialysis patients may be a new indicator of the prognosis and health status of HD patients.
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28
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Yu H, Yu Q, Mi Y, Wang P, Jin S, Xiao L, Guo Q, Wu Y. Hydrogen Sulfide Inhibited Sympathetic Activation in D-Galactose-Induced Aging Rats by Upregulating Klotho and Inhibiting Inflammation in the Paraventricular Nucleus. Biomedicines 2023; 11:biomedicines11020566. [PMID: 36831102 PMCID: PMC9953477 DOI: 10.3390/biomedicines11020566] [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: 12/13/2022] [Revised: 01/19/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
The present study aimed to explore the central relationship between cardiovascular conditions and aging. D-galactose (D-gal) was utilized to induce an accelerated aging model and to evaluate the effects of hydrogen sulfide (H2S) on aging-related cardiovascular risk factors and mechanisms. Eight-week-old Sprague Dawley rats were given an intraperitoneal injection of 250 mg/kg D-gal every day with or without H2S (56 μmol/kg) for 12 weeks. We found that D-gal treatment induced a noticeably aging-related increase in p16, p53 and p21 protein levels and senescence-associated beta-galactosidase staining. In addition, the level of noradrenalin was increased, accompanied by enhanced blood pressure and renal sympathetic nerve activity in aged rats. The greater sympathetic responses were related with the increased level of inflammation. The decreased level of klotho in the paraventricular nucleus neuron also contributed to sympathetic activation in D-gal-induced aged rats. However, the exogenous administration of H2S attenuated the sympathetic activity in aged rats, as evidenced by the decreased blood pressure, renal sympathetic nerve activity and noradrenalin level. The ameliorated cellular senescence, inflammation and heightened klotho in the paraventricular nucleus were attributed to the protective effects of H2S. The present study provides further evidence for the drug development of H2S for the prevention or treatment of the aging-associated cardiovascular diseases.
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Affiliation(s)
- Hao Yu
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Qiyao Yu
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
- Department of Research, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Yuan Mi
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
- Department of Emergency, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Ping Wang
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Sheng Jin
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Lin Xiao
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Qi Guo
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
- Experimental Center for Teaching, Hebei Medical University, Shijiazhuang 050017, China
- Correspondence: (Q.G.); (Y.W.); Tel./Fax: +86-311-8626-1288 (Y.W.)
| | - Yuming Wu
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
- Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang 050017, China
- Key Laboratory of Vascular Medicine of Hebei Province, Shijiazhuang 050017, China
- Correspondence: (Q.G.); (Y.W.); Tel./Fax: +86-311-8626-1288 (Y.W.)
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Chen Y, Yang C, Zou M, Wang D, Sheng R, Zhan M, Chen Q, Yang W, Liu X, Xu S. Inhibiting mitochondrial inflammation through Drp1/HK1/NLRP3 pathway: A mechanism of alpinetin attenuated aging-associated cognitive impairment. Phytother Res 2023. [PMID: 36772986 DOI: 10.1002/ptr.7767] [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: 08/16/2022] [Revised: 12/20/2022] [Accepted: 01/29/2023] [Indexed: 02/12/2023]
Abstract
Mitochondrial inflammation triggered by abnormal mitochondrial division and regulated by the Drp1/HK1/NLRP3 pathway is correlated with the progression of aging-associated cognitive impairment (AACI). Alpinetin is a novel flavonoid derived from Zingiberaceae that has many bioactivities such as antiinflammation and anti-oxidation. However, whether alpinetin alleviates AACI by suppressing Drp1/HK1/NLRP3 pathway-inhibited mitochondrial inflammation is still unknown. In the present study, D-galactose (D-gal)-induced aging mice and BV-2 cells were used, and the effects of alpinetin on learning and memory function, neuroprotection and activation of the Drp1/HK1/NLRP3 pathway were investigated. Our data indicated that alpinetin significantly alleviated cognitive dysfunction and neuronal damage in the CA1 and CA3 regions of D-gal-treated mice. Moreover, D-gal-induced microglial activation was markedly reduced by alpinetin by inhibiting the Drp1/HK1/NLRP3 pathway-suppressed mitochondrial inflammation, down-regulating the levels of p-Drp1 (s616), VDAC, NLRP3, ASC, Cleaved-caspase 1, IL-18, and IL-1β, and up-regulating the expression of HK1. Furthermore, after Drp1 inhibition by Mdivi-1 in vitro, the inhibitory effect of alpinetin on Drp1/HK1/NLRP3 pathway was more evident. In summary, the current results implied that alpinetin attenuated aging-related cognitive deficits by inhibiting the Drp1/HK1/NLRP3 pathway and suppressing mitochondrial inflammation, suggesting that the inhibition of the Drp1/HK1/NLRP3 pathway is one of the mechanisms by which alpinetin attenuates AACI.
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Affiliation(s)
- Yuanyuan Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chuan Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mi Zou
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dan Wang
- Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ruilin Sheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Meng Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qi Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wenqin Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiao Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shijun Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Xu W, Luo Y, Yin J, Huang M, Luo F. Targeting AMPK signaling by polyphenols: a novel strategy for tackling aging. Food Funct 2023; 14:56-73. [PMID: 36524530 DOI: 10.1039/d2fo02688k] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aging is an inevitable biological process and is accompanied by a gradual decline of physiological functions, such as the incidence of age-related diseases. Aging becomes a major burden and challenge for society to prevent or delay the occurrence and development of these age-related diseases. AMPK is a key regulator of intracellular energy and participates in the adaptation of calorie restriction. It is also an important mediator of nutritionally sensitive pathways that regulate the biological effects of nutrient active ingredients. AMPK can limit proliferation and activate autophagy. Recent studies have shown that nutritional intervention can delay aging and lessen age-related diseases in many animal and even human models. Polyphenols function as a natural antidote and are important anti-inflammatory and antioxidant agents in human diets. Polyphenols can prevent age-related diseases because they regulate complex networks of cellular processes such as oxidative damage, inflammation, cellular aging, and autophagy, and have also attracted wide attention as a potential beneficial substance for longevity. In this review, we systemically summarized the progress of targeting AMPK signaling by dietary polyphenols in aging prevention. Polyphenols can reduce oxidative stress and inflammatory response, and maintain the steady state of energy. Polyphenols can also modulate sirtuins/NAD+, nutrient-sensing, proteostasis, mitochondrial function, autophagy and senescence via targeting AMPK signaling. Therefore, targeting the AMPK signaling pathway by dietary polyphenols may be a novel anti-aging strategy.
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Affiliation(s)
- Wei Xu
- Hunan Key Laboratory of Grain-oil Deep Process and Quality Control, Hunan Key Laboratory of Forestry Edible Resources Safety and Processing, Central South University of Forestry and Technology, Changsha, Hunan 410004, China. .,Hunan Food and Drug Vocational College, Department of Food Science and Engineering, Changsha, Hunan 410208, China
| | - Yi Luo
- Department of Clinic Medicine, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Jiaxin Yin
- Hunan Food and Drug Vocational College, Department of Food Science and Engineering, Changsha, Hunan 410208, China
| | - Mengzhen Huang
- Hunan Food and Drug Vocational College, Department of Food Science and Engineering, Changsha, Hunan 410208, China
| | - Feijun Luo
- Hunan Key Laboratory of Grain-oil Deep Process and Quality Control, Hunan Key Laboratory of Forestry Edible Resources Safety and Processing, Central South University of Forestry and Technology, Changsha, Hunan 410004, China.
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Effects of Oleuropein and Hydroxytyrosol on Inflammatory Mediators: Consequences on Inflammaging. Int J Mol Sci 2022; 24:ijms24010380. [PMID: 36613822 PMCID: PMC9820525 DOI: 10.3390/ijms24010380] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Aging is associated with a low-grade, systemic inflammatory state defined as "inflammaging", ruled by the loss of proper regulation of the immune system leading to the accumulation of pro-inflammatory mediators. Such a condition is closely connected to an increased risk of developing chronic diseases. A number of studies demonstrate that olive oil phenolic compound oleuropein and its derivative hydroxytyrosol contribute to modulating tissue inflammation and oxidative stress, thus becoming attractive potential candidates to be used in the context of nutraceutical interventions, in order to ameliorate systemic inflammation in aging subjects. In this review, we aim to summarize the available data about the anti-inflammatory properties of oleuropein and hydroxytyrosol, discussing them in the light of molecular pathways involved in the synthesis and release of inflammatory mediators in inflammaging.
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Hurvitz N, Elkhateeb N, Sigawi T, Rinsky-Halivni L, Ilan Y. Improving the effectiveness of anti-aging modalities by using the constrained disorder principle-based management algorithms. FRONTIERS IN AGING 2022; 3:1044038. [PMID: 36589143 PMCID: PMC9795077 DOI: 10.3389/fragi.2022.1044038] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/22/2022] [Indexed: 12/15/2022]
Abstract
Aging is a complex biological process with multifactorial nature underlined by genetic, environmental, and social factors. In the present paper, we review several mechanisms of aging and the pre-clinically and clinically studied anti-aging therapies. Variability characterizes biological processes from the genome to cellular organelles, biochemical processes, and whole organs' function. Aging is associated with alterations in the degrees of variability and complexity of systems. The constrained disorder principle defines living organisms based on their inherent disorder within arbitrary boundaries and defines aging as having a lower variability or moving outside the boundaries of variability. We focus on associations between variability and hallmarks of aging and discuss the roles of disorder and variability of systems in the pathogenesis of aging. The paper presents the concept of implementing the constrained disease principle-based second-generation artificial intelligence systems for improving anti-aging modalities. The platform uses constrained noise to enhance systems' efficiency and slow the aging process. Described is the potential use of second-generation artificial intelligence systems in patients with chronic disease and its implications for the aged population.
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Affiliation(s)
- Noa Hurvitz
- Faculty of Medicine, Hebrew University and Department of Medicine, Hadassah Medical Center, Jerusalem, Israel
| | - Narmine Elkhateeb
- Faculty of Medicine, Hebrew University and Department of Medicine, Hadassah Medical Center, Jerusalem, Israel
| | - Tal Sigawi
- Faculty of Medicine, Hebrew University and Department of Medicine, Hadassah Medical Center, Jerusalem, Israel
| | - Lilah Rinsky-Halivni
- Braun School of Public Health, Hebrew University of Jerusalem, Jerusalem, Israel,Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Yaron Ilan
- Faculty of Medicine, Hebrew University and Department of Medicine, Hadassah Medical Center, Jerusalem, Israel,*Correspondence: Yaron Ilan,
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Liu YY, Huo D, Zeng LT, Fan GQ, Shen T, Zhang TM, Cai JP, Cui J. Mesencephalic astrocyte-derived neurotrophic factor (MANF): Structure, functions and therapeutic potential. Ageing Res Rev 2022; 82:101763. [PMID: 36272696 DOI: 10.1016/j.arr.2022.101763] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/18/2022] [Accepted: 10/15/2022] [Indexed: 01/31/2023]
Abstract
Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a novel evolutionarily conserved protein present in both vertebrate and invertebrate species. MANF shows distinct structural and functional properties than the traditional neurotrophic factors (NTF). MANF is composed of an N-terminal saposin-like lipid-binding domain and a C-terminal SAF-A/B, Acinus and PIAS (SAP) domain connected by a short linker. The two well-described activities of MANF include (1) role as a neurotrophic factor that plays direct neuroprotective effects in the nervous system and (2) cell protective effects in the animal models of non-neuronal diseases, including retinal damage, diabetes mellitus, liver injury, myocardial infarction, nephrotic syndrome, etc. The main objective of the current review is to provide up-to-date insights regarding the structure of MANF, mechanisms regulating its expression and secretion, physiological functions in various tissues and organs, protective effects during aging, and potential clinical applications. Together, this review highlights the importance of MANF in reversing age-related dysfunction and geroprotection.
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Affiliation(s)
- Yuan-Yuan Liu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Da Huo
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Lv-Tao Zeng
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Guo-Qing Fan
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Tao Shen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Tie-Mei Zhang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China
| | - Jian-Ping Cai
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China.
| | - Ju Cui
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, PR China.
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Shit B, Prakash A, Sarkar S, Vale PF, Khan I. Ageing leads to reduced specificity of antimicrobial peptide responses in Drosophila melanogaster. Proc Biol Sci 2022; 289:20221642. [PMID: 36382522 PMCID: PMC9667363 DOI: 10.1098/rspb.2022.1642] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Evolutionary theory predicts a late-life decline in the force of natural selection, possibly leading to late-life deregulations of the immune system. A potential outcome of such deregulations is the inability to produce specific immunity against target pathogens. We tested this possibility by infecting multiple Drosophila melanogaster lines (with bacterial pathogens) across age groups, where either individual or different combinations of Imd- and Toll-inducible antimicrobial peptides (AMPs) were deleted using CRISPR gene editing. We show a high degree of non-redundancy and pathogen-specificity of AMPs in young flies: in some cases, even a single AMP could confer complete resistance. However, ageing led to drastic reductions in such specificity to target pathogens, warranting the action of multiple AMPs across Imd and Toll pathways. Moreover, use of diverse AMPs either lacked survival benefits or even accompanied survival costs post-infection. These features were also sexually dimorphic: females required a larger repertoire of AMPs than males but extracted equivalent survival benefits. Finally, age-specific expansion of the AMP-repertoire was accompanied with ageing-induced downregulation of negative-regulators of the Imd pathway and damage to renal function post-infection, as features of poorly regulated immunity. Overall, we could highlight the potentially non-adaptive role of ageing in producing less-specific AMP responses, across sexes and pathogens.
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Affiliation(s)
- Biswajit Shit
- Ashoka University, Plot No. 2, Rajiv Gandhi Education City, National Capital Region P.O. Rai, Sonepat, Haryana-131029, India
| | - Arun Prakash
- Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK
| | - Saubhik Sarkar
- Ashoka University, Plot No. 2, Rajiv Gandhi Education City, National Capital Region P.O. Rai, Sonepat, Haryana-131029, India
| | - Pedro F. Vale
- Institute of Ecology and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK
| | - Imroze Khan
- Ashoka University, Plot No. 2, Rajiv Gandhi Education City, National Capital Region P.O. Rai, Sonepat, Haryana-131029, India
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35
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Therapeutic Antiaging Strategies. Biomedicines 2022; 10:biomedicines10102515. [PMID: 36289777 PMCID: PMC9599338 DOI: 10.3390/biomedicines10102515] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/21/2022] [Accepted: 09/24/2022] [Indexed: 11/17/2022] Open
Abstract
Aging constitutes progressive physiological changes in an organism. These changes alter the normal biological functions, such as the ability to manage metabolic stress, and eventually lead to cellular senescence. The process itself is characterized by nine hallmarks: genomic instability, telomere attrition, epigenetic alterations, loss of proteostasis, deregulated nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, and altered intercellular communication. These hallmarks are risk factors for pathologies, such as cardiovascular diseases, neurodegenerative diseases, and cancer. Emerging evidence has been focused on examining the genetic pathways and biological processes in organisms surrounding these nine hallmarks. From here, the therapeutic approaches can be addressed in hopes of slowing the progression of aging. In this review, data have been collected on the hallmarks and their relative contributions to aging and supplemented with in vitro and in vivo antiaging research experiments. It is the intention of this article to highlight the most important antiaging strategies that researchers have proposed, including preventive measures, systemic therapeutic agents, and invasive procedures, that will promote healthy aging and increase human life expectancy with decreased side effects.
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36
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Corbally MK, Regan JC. Fly immunity comes of age: The utility of Drosophila as a model for studying variation in immunosenescence. FRONTIERS IN AGING 2022; 3:1016962. [PMID: 36268532 PMCID: PMC9576847 DOI: 10.3389/fragi.2022.1016962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/20/2022] [Indexed: 11/05/2022]
Affiliation(s)
| | - Jennifer C. Regan
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
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37
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Dicer1 deficient mice exhibit premature aging and metabolic perturbations in adipocytes. iScience 2022; 25:105149. [PMID: 36185376 PMCID: PMC9523393 DOI: 10.1016/j.isci.2022.105149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 08/12/2022] [Accepted: 09/13/2022] [Indexed: 11/26/2022] Open
Abstract
Age-related diseases are major concern in developed countries. To avoid disabilities that accompany increased lifespan, pharmaceutical approaches are considered. Therefore, appropriate animal models are required for a better understanding of aging processes and potential in vivo assays to evaluate the impact of molecules that may delay the occurrence of age-related diseases. Few mouse models exhibiting pathological aging exist, but currently, none of them reproducibly mimics human diseases like osteoporosis, cognitive dysfunctions or sarcopenia that can be seen in some, but not all, elders. Here, we describe the premature aging phenotypes of Dicer-deficient mature animals, which exhibit an overall deterioration of many organs and tissues (skin, heart, and adipose tissue) ultimately leading to a significant reduction of their lifespan. Molecular characterization of transcriptional responses focused on the adipose tissue suggested that both canonical and non-canonical functions of DICER are involved in this process and highlight potential actionable pathways to revert it. Dicer1-deficient mice have a reduced lifespan with early age-related symptoms Mutant mice are resistant to high fat diet-induced disorders Myokines FGF21 and GDF15 are likely key regulators of adipocytes metabolism
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Ghamar Talepoor A, Doroudchi M. Immunosenescence in atherosclerosis: A role for chronic viral infections. Front Immunol 2022; 13:945016. [PMID: 36059478 PMCID: PMC9428721 DOI: 10.3389/fimmu.2022.945016] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/26/2022] [Indexed: 01/10/2023] Open
Abstract
Immune system is a versatile and dynamic body organ which offers survival and endurance of human beings in their hostile living environment. However, similar to other cells, immune cells are hijacked by senescence. The ageing immune cells lose their beneficial functions but continue to produce inflammatory mediators which draw other immune and non-immune cells to the senescence loop. Immunosenescence has been shown to be associated with different pathological conditions and diseases, among which atherosclerosis has recently come to light. There are common drivers of both immunosenescence and atherosclerosis; e.g. inflammation, reactive oxygen species (ROS), chronic viral infections, genomic damage, oxidized-LDL, hypertension, cigarette smoke, hyperglycaemia, and mitochondrial failure. Chronic viral infections induce inflammaging, sustained cytokine signaling, ROS generation and DNA damage which are associated with atherogenesis. Accumulating evidence shows that several DNA and RNA viruses are stimulators of immunosenescence and atherosclerosis in an interrelated network. DNA viruses such as CMV, EBV and HBV upregulate p16, p21 and p53 senescence-associated molecules; induce inflammaging, metabolic reprogramming of infected cells, replicative senescence and telomere shortening. RNA viruses such as HCV and HIV induce ROS generation, DNA damage, induction of senescence-associated secretory phenotype (SASP), metabolic reprogramming of infected cells, G1 cell cycle arrest, telomere shortening, as well as epigenetic modifications of DNA and histones. The newly emerged SARS-CoV-2 virus is also a potent inducer of cytokine storm and SASP. The spike protein of SARS-CoV-2 promotes senescence phenotype in endothelial cells by augmenting p16, p21, senescence-associated β-galactosidase (SA-β-Gal) and adhesion molecules expression. The impact of SARS-CoV-2 mega-inflammation on atherogenesis, however, remains to be investigated. In this review we focus on the common processes in immunosenescence and atherogenesis caused by chronic viral infections and discuss the current knowledge on this topic.
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Fu Q, Duan R, Sun Y, Li Q. Hyperbaric oxygen therapy for healthy aging: From mechanisms to therapeutics. Redox Biol 2022; 53:102352. [PMID: 35649312 PMCID: PMC9156818 DOI: 10.1016/j.redox.2022.102352] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/17/2022] [Accepted: 05/23/2022] [Indexed: 12/19/2022] Open
Abstract
Hyperbaric oxygen therapy (HBOT), a technique through which 100% oxygen is provided at a pressure higher than 1 atm absolute (ATA), has become a well-established treatment modality for multiple conditions. The noninvasive nature, favorable safety profile, and common clinical application of HBOT make it a competitive candidate for several new indications, one of them being aging and age-related diseases. In fact, despite the conventional wisdom that excessive oxygen accelerates aging, appropriate HBOT protocols without exceeding the toxicity threshold have shown great promise in therapies against aging. For one thing, an extensive body of basic research has expanded our mechanistic understanding of HBOT. Interestingly, the therapeutic targets of HBOT overlap considerably with those of aging and age-related diseases. For another, pre-clinical and small-scale clinical investigations have provided validated information on the efficacy of HBOT against aging from various aspects. However, a generally applicable protocol for HBOT to be utilized in therapies against aging needs to be defined as a subsequent step. It is high time to look back and summarize the recent advances concerning biological mechanisms and therapeutic implications of HBOT in promoting healthy aging and shed light on prospective directions. Here we provide the first comprehensive overview of HBOT in the field of aging and geriatric research, which allows the scientific community to be aware of the emerging tendency and move beyond conventional wisdom to scientific findings of translational value.
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40
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Kisipan ML, Ojoo RO, Kanui TI, Abelson KSP. Bodyweight, locomotion, and behavioral responses of the naked mole rat (Heterocephalus glaber) to lipopolysaccharide administration. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2022; 208:493-504. [PMID: 35731263 PMCID: PMC9250917 DOI: 10.1007/s00359-022-01557-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/10/2022] [Indexed: 11/26/2022]
Abstract
The naked mole rat has unique biologic characteristics that include atypical inflammatory responses. Lipopolysaccharide induces inflammation which triggers brain centers controlling feeding, and behavior to result in “sick animal behavior”. We characterized the bodyweight, locomotor, and other behavioral responses of this rodent to lipopolysaccharide administration. Lipopolysaccharide caused weight losses, which were not prevented by TAK 242. In the open field test, lipopolysaccharide did not depress locomotion, while urination, defecation, and activity freezing were rare. The animals exhibited walling but not rearing and fast backward movements that were unaffected by lipopolysaccharide. Failure to depress locomotion suggests either a unique immunity-brain crosstalk or motor responses/centers that tolerate depressive effects of inflammation. The absence of activity freezing and rarity of urination and defecation suggests that novel environments or lipopolysaccharide do not induce anxiety, or that anxiety is expressed differently in the animal. The absence of rearing could be due to the design of the animal’s locomotor apparatus while fast backward movement could be a mechanism for quick escape from threats in the tunnels of their habitat. Our results elucidate the unique biology of this rodent, which elicits interest in the animal as a model for inflammatory research, although the findings require mechanistic corroborations.
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Affiliation(s)
- Mosiany Letura Kisipan
- Department of Experimental Medicine, University of Copenhagen, Copenhagen, Denmark.
- Department of Veterinary Anatomy and Physiology, Egerton University, Njoro, Kenya.
| | - Rodi Omondi Ojoo
- Department of Veterinary Anatomy and Physiology, University of Nairobi, Nairobi, Kenya
| | - Titus Ikusya Kanui
- Department of Agricultural Sciences, South Eastern Kenya University, Kitui, Kenya
| | - Klas S P Abelson
- Department of Experimental Medicine, University of Copenhagen, Copenhagen, Denmark
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Utilization of Mind–Body Intervention for Integrative Health Care of COVID-19 Patients and Survivors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116618. [PMID: 35682203 PMCID: PMC9180827 DOI: 10.3390/ijerph19116618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/23/2022] [Accepted: 05/27/2022] [Indexed: 11/17/2022]
Abstract
Recent findings suggest a correlation between COVID-19 and diabetes, although the underlying causes are still little understood. COVID-19 infection tends to induce severe symptoms in patients with underlying diabetes, increasing their mortality rate. Moreover, COVID-19 itself appears to be a diabetogenic factor. In addition, mental health conditions, such as depression due to lockdown and anxiety about infection, were found to affect glycemic control and immunity, highlighting the importance of mental health care during the pandemic. Mind–Body Intervention (MBI), which includes meditation, yoga, and qigong, has emerged as a tool for mental health management due to its effects on stress reduction and the promotion of mental and physical well-being. Here, we review the latest randomized controlled trials to determine the effects of MBI on glycemic control and the immune system and discuss the underlying mechanisms by which MBI facilitates the virtuous cycle of stress management, glycemic control, and immune modulation. Furthermore, we examine the actual utilization of MBI during the COVID-19 pandemic era through recent studies. With proper online education, non-pharmacological MBI may be more widely used as an important tool for self-health care that complements the usual treatment of COVID-19 patients and survivors.
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42
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MG132 Induces Progerin Clearance and Improves Disease Phenotypes in HGPS-like Patients’ Cells. Cells 2022; 11:cells11040610. [PMID: 35203262 PMCID: PMC8870437 DOI: 10.3390/cells11040610] [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: 01/06/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 02/04/2023] Open
Abstract
Progeroid syndromes (PS), including Hutchinson-Gilford Progeria Syndrome (HGPS), are premature and accelerated aging diseases, characterized by clinical features mimicking physiological aging. Most classical HGPS patients carry a de novo point mutation within exon 11 of the LMNA gene encoding A-type lamins. This mutation activates a cryptic splice site, leading to the production of a truncated prelamin A, called prelamin A ∆50 or progerin, that accumulates in HGPS cell nuclei and is a hallmark of the disease. Some patients with PS carry other LMNA mutations and are named “HGPS-like” patients. They produce progerin and/or other truncated prelamin A isoforms (∆35 and ∆90). We previously found that MG132, a proteasome inhibitor, induced progerin clearance in classical HGPS through autophagy activation and splicing regulation. Here, we show that MG132 induces aberrant prelamin A clearance and improves cellular phenotypes in HGPS-like patients’ cells other than those previously described in classical HGPS. These results provide preclinical proof of principle for the use of a promising class of molecules toward a potential therapy for children with HGPS-like or classical HGPS.
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Li B, Zhang B, Liu X, Zheng Y, Han K, Liu H, Wu C, Li J, Fan S, Peng W, Zhang F, Liu X. The effect of lactoferrin in aging: role and potential. Food Funct 2021; 13:501-513. [PMID: 34928288 DOI: 10.1039/d1fo02750f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Aging is frequently accompanied by various types of physiological deterioration, which increases the risk of human pathologies. Global public health efforts to increase human lifespan have increasingly focused on lowering the risk of aging-related diseases, such as diabetes, neurodegenerative diseases, cardiovascular disease, and cancers. Dietary intervention is a promising approach to maintaining human health during aging. Lactoferrin (LF) is known for its physiologically pleiotropic properties. Anti-aging interventions of LF have proven to be safe and effective for various pharmacological activities, such as anti-oxidation, anti-cellular senescence, anti-inflammation, and anti-carcinogenic. Moreover, LF has a pivotal role in modulating the major signaling pathways that influence the longevity of organisms. Thus, LF is expected to be able to attenuate the process of aging and greatly ameliorate its effects.
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Affiliation(s)
- Bing Li
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Bo Zhang
- Henan Key Laboratory of Rare Earth Functional Materials, The Key Laboratory of Rare Earth Functional Materials and Applications, Zhoukou Normal University, Zhoukou 466001, Henan, PR China
| | - Xudong Liu
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Yidan Zheng
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Kuntong Han
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Henan Liu
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Changjing Wu
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Jin Li
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Shuhua Fan
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Weifeng Peng
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Fuli Zhang
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
| | - Xiaomeng Liu
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466001, Henan, PR China.
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Shim DW, Cho HJ, Hwang I, Jung TY, Kim HS, Ryu JH, Yu JW. Intracellular NAD+ Depletion Confers a Priming Signal for NLRP3 Inflammasome Activation. Front Immunol 2021; 12:765477. [PMID: 34987507 PMCID: PMC8722528 DOI: 10.3389/fimmu.2021.765477] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
Nicotinamide adenine dinucleotide (NAD+) is an important cofactor in many redox and non-redox NAD+-consuming enzyme reactions. Intracellular NAD+ level steadily declines with age, but its role in the innate immune potential of myeloid cells remains elusive. In this study, we explored whether NAD+ depletion by FK866, a highly specific inhibitor of the NAD salvage pathway, can affect pattern recognition receptor-mediated responses in macrophages. NAD+-depleted mouse bone marrow-derived macrophages (BMDMs) exhibited similar levels of proinflammatory cytokine production in response to LPS or poly (I:C) stimulation compared with untreated cells. Instead, FK866 facilitated robust caspase-1 activation in BMDMs in the presence of NLRP3-activating signals such as ATP and nigericin, a potassium ionophore. However, this FK866-mediated caspase-1 activation was completely abolished in Nlrp3-deficient macrophages. FK866 plus nigericin stimulation caused an NLRP3-dependent assembly of inflammasome complex. In contrast, restoration of NAD+ level by supplementation with nicotinamide mononucleotide abrogated the FK866-mediated caspase-1 cleavage. FK866 did not induce or increase the expression levels of NLRP3 and interleukin (IL)-1β but drove mitochondrial retrograde transport into the perinuclear region. FK866-nigericin-induced mitochondrial transport is critical for caspase-1 cleavage in macrophages. Consistent with the in vitro experiments, intradermal coinjection of FK866 and ATP resulted in robust IL-1β expression and caspase-1 activation in the skin of wild-type, but not Nlrp3-deficient mice. Collectively, our data suggest that NAD+ depletion provides a non-transcriptional priming signal for NLRP3 activation via mitochondrial perinuclear clustering, and aging-associated NAD+ decline can trigger NLRP3 inflammasome activation in ATP-rich environments.
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Affiliation(s)
- Do-Wan Shim
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyo-Joung Cho
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Inhwa Hwang
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Taek-Yeol Jung
- Department of Life Science, College of Natural Science, The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, South Korea
| | - Hyun-Seok Kim
- Department of Life Science, College of Natural Science, The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, South Korea
| | - Ju Hee Ryu
- Theragnosis Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul, South Korea
| | - Je-Wook Yu
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: Je-Wook Yu,
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Baban B, Khodadadi H, Salles ÉL, Costigliola V, Morgan JC, Hess DC, Vaibhav K, Dhandapani KM, Yu JC. Inflammaging and Cannabinoids. Ageing Res Rev 2021; 72:101487. [PMID: 34662745 PMCID: PMC8662707 DOI: 10.1016/j.arr.2021.101487] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/02/2021] [Accepted: 10/12/2021] [Indexed: 01/07/2023]
Abstract
Aging is a complex phenomenon associated with a wide spectrum of physical and physiological changes affecting every part of all metazoans, if they escape death prior to reaching maturity. Critical to survival, the immune system evolved as the principal component of response to injury and defense against pathogen invasions. Because how significantly immune system affects and is affected by aging, several neologisms now appear to encapsulate these reciprocal relationships, such as Immunosenescence. The central part of Immunosenescence is Inflammaging -a sustained, low-grade, sterile inflammation occurring after reaching reproductive prime. Once initiated, the impact of Inflammaging and its adverse effects determine the direction and magnitudes of further Inflammaging. In this article, we review the nature of this vicious cycle, we will propose that phytocannabinoids as immune regulators may possess the potential as effective adjunctive therapies to slow and, in certain cases, reverse the pathologic senescence to permit a more healthy aging.
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Affiliation(s)
- Babak Baban
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, DCG Center for Excellence in Research, Scholarship and Innovation (CERSI), Augusta University, Augusta, GA, USA; Center for Excellence in Research, Scholarship and Innovation, Dental College of Georgia, Augusta, Augusta University, Augusta, GA, USA; Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Neurology, Medical College of Georgia, Augusta University, Augusta, GA, USA.
| | - Hesam Khodadadi
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, DCG Center for Excellence in Research, Scholarship and Innovation (CERSI), Augusta University, Augusta, GA, USA; Center for Excellence in Research, Scholarship and Innovation, Dental College of Georgia, Augusta, Augusta University, Augusta, GA, USA
| | - Évila Lopes Salles
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, DCG Center for Excellence in Research, Scholarship and Innovation (CERSI), Augusta University, Augusta, GA, USA; Center for Excellence in Research, Scholarship and Innovation, Dental College of Georgia, Augusta, Augusta University, Augusta, GA, USA
| | | | - John C Morgan
- Parkinson's Foundation Center of Excellence, Movement Disorders, Program, Department of Neurology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - David C Hess
- Department of Neurology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Kumar Vaibhav
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Krishnan M Dhandapani
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Jack C Yu
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
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Wang Y, Yi H, Song Y. The safety of MSC therapy over the past 15 years: a meta-analysis. Stem Cell Res Ther 2021; 12:545. [PMID: 34663461 PMCID: PMC8522073 DOI: 10.1186/s13287-021-02609-x] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 09/25/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Despite increasing clinical investigations emphasizing the safety of mesenchymal stem cell (MSC) therapy in different populations with different diseases, no article has recently reviewed the adverse events in all populations. AIM To evaluate the safety of MSC therapy in all populations receiving MSC therapy and explore the potential heterogeneities influencing the clinical application of MSCs. METHODS The PubMed, Embase, Web of Science and Scopus databases were searched from onset until 1 March 2021. RESULTS All adverse events are displayed as odds ratios (ORs) and 95% CIs (confidential intervals). In total, 62 randomized clinical trials were included that enrolled 3546 participants diagnosed with various diseases (approximately 20 types of diseases) treated with intravenous or local implantation versus placebo or no treatment. All studies were of high quality, and neither serious publication bias nor serious adverse events (such as death and infection) were discovered across the included studies. The pooled analysis demonstrated that MSC administration was closely associated with transient fever (OR, 3.65, 95% CI 2.05-6.49, p < 0.01), administration site adverse events (OR, 1.98, 95% CI 1.01-3.87, p = 0.05), constipation (OR, 2.45, 95% CI 1.01-5.97, p = 0.05), fatigue (OR, 2.99, 95% CI 1.06-8.44, p = 0.04) and sleeplessness (OR, 5.90, 95% CI 1.04-33.47, p = 0.05). Interestingly, MSC administration trended towards lowering rather than boosting the incidence rate of arrhythmia (OR, 0.62, 95% CI 0.36-1.07, p = 0.09). CONCLUSIONS Conclusively, MSC administration was safe in different populations compared with other placebo modalities.
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Affiliation(s)
- Yang Wang
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangdong Pharmaceutical University, No. 19 Nonglinxia Road, Yuexiu District, Guangzhou, Guangdong Province China
| | - Hanxiao Yi
- Department of Radiotherapy, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 600 Tianhe Road, Tianhe District, Guangzhou, Guangdong Province China
| | - Yancheng Song
- Department of Orthopedics, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangdong Pharmaceutical University, No. 19 Nonglinxia Road, Yuexiu District, Guangzhou, Guangdong Province China
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Li W, Che X, Chen X, Zhou M, Luo X, Liu T. Study of calcitriol anti-aging effects on human natural killer cells in vitro. Bioengineered 2021; 12:6844-6854. [PMID: 34546851 PMCID: PMC8806577 DOI: 10.1080/21655979.2021.1972076] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Vitamin D is widely considered to have a regulatory effect on the immune system. Some clinical investigations have shown that the demand for vitamin D increases with age. Calcitriol is the biologically active form of vitamin D. However, its effect on human natural killer (NK) cells remains unclear. Therefore, in this study, we investigated the anti-aging and immunomodulatory effects of calcitriol on NK cells using a series of immunological methods to explore its important role in innate immunity. We found that calcitriol reversed the expression of aging-related biomarkers in NK cells and inhibited their expansion by maintaining these cells in the G1 phase, without any apoptosis and exhaustion. Calcitriol repressed the release of inflammation-related cytokines, such as interleukin-5 (IL-5), interleukin-13 (IL-13), interferon-gamma (IFN-γ), and tumor necrosis factor-alpha (TNF-α). The degranulation of NK cells was downregulated by calcitriol when these cells were co-cultured with K562 tumor cells. We also found that calcitriol upregulated the aging-related sirtuin 1- protein/kinase R-like endoplasmic reticulum kinase (SIRT1/pERK) pathway and SIRT1-deltaExon8 (SIRT1-∆Exon8) expression by activating the vitamin D receptor (VDR). Moreover, calcitriol could be a potential negative regulator of NK cell apoptosis and mitochondrial inactivation which caused by oxidative stress. Thus, calcitriol exhibits anti-aging effects on human NK cells in vitro by activating the SIRT1-PERK axis and resisting oxidative senescence.
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Affiliation(s)
- Weiran Li
- Department of Oncology Rehabilitation, Shenzhen Luohu People's Hospital, the 3rd Affiliated Hospital of Shenzhen University, Shenzhen, China.,Medical Laboratory of Shenzhen LuoHu People's Hospital, Shenzhen, China
| | - Xu Che
- Department of Hepatobiliary & Pancreatic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, China.,Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuemei Chen
- Department of Oncology Rehabilitation, Shenzhen Luohu People's Hospital, the 3rd Affiliated Hospital of Shenzhen University, Shenzhen, China.,Medical Laboratory of Shenzhen LuoHu People's Hospital, Shenzhen, China
| | - Meiling Zhou
- Department of Oncology Rehabilitation, Shenzhen Luohu People's Hospital, the 3rd Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xiaoping Luo
- Department of Oncology Rehabilitation, Shenzhen Luohu People's Hospital, the 3rd Affiliated Hospital of Shenzhen University, Shenzhen, China.,Medical Laboratory of Shenzhen LuoHu People's Hospital, Shenzhen, China
| | - Tao Liu
- Department of Oncology Rehabilitation, Shenzhen Luohu People's Hospital, the 3rd Affiliated Hospital of Shenzhen University, Shenzhen, China.,Medical Laboratory of Shenzhen LuoHu People's Hospital, Shenzhen, China
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Rouillard ME, Sutter PA, Durham OR, Willis CM, Crocker SJ. Astrocyte-Derived Extracellular Vesicles (ADEVs): Deciphering their Influences in Aging. Aging Dis 2021; 12:1462-1475. [PMID: 34527422 PMCID: PMC8407882 DOI: 10.14336/ad.2021.0608] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/08/2021] [Indexed: 12/14/2022] Open
Abstract
Astrocytes are an abundant and dynamic glial cell exclusive to the central nervous system (CNS). In the context of injury, inflammation, and/or diseases of the nervous system, astrocyte responses, termed reactive astrogliosis, are a recognized pathological feature across a range of conditions and diseases. However, the impact of reactive astrogliosis is not uniform and varies by context and duration (time). In recent years, extracellular communication between glial cells via extracellular vesicles (EVs) has garnered interest as a process connected with reactive astrogliosis. In this review, we relate recent findings on astrocyte-derived extracellular vesicles (ADEVs) with a focus on factors that can influence the effects of ADEVs and identified age related changes in the function of ADEVs. Additionally, we will discuss the current limitations of existing experimental approaches and identify questions that highlight areas for growth in this field, which will continue to enhance our understanding of ADEVs in age-associated processes.
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Affiliation(s)
- Megan E Rouillard
- 1Department of Neuroscience, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Pearl A Sutter
- 1Department of Neuroscience, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Olivia R Durham
- 1Department of Neuroscience, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Cory M Willis
- 2Department of Clinical Neurosciences and NIHR Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Stephen J Crocker
- 1Department of Neuroscience, University of Connecticut School of Medicine, Farmington, CT 06030, USA
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Li Y, Zhang D, Li L, Han Y, Dong X, Yang L, Li X, Li W, Li W. Ginsenoside Rg1 ameliorates aging‑induced liver fibrosis by inhibiting the NOX4/NLRP3 inflammasome in SAMP8 mice. Mol Med Rep 2021; 24:801. [PMID: 34523690 PMCID: PMC8456316 DOI: 10.3892/mmr.2021.12441] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/27/2021] [Indexed: 12/23/2022] Open
Abstract
Aging is often accompanied by liver injury and fibrosis, eventually leading to the decline in liver function. However, the mechanism of aging‑induced liver injury and fibrosis is still not fully understood, to the best of our knowledge, and there are currently no effective treatment options available for liver aging. Ginsenoside Rg1 (Rg1) has been reported to exert potent anti‑aging effects due to its potential antioxidant and anti‑inflammatory activity. The present study aimed to investigate the protective effect and underlying mechanism of action of Rg1 in aging‑induced liver injury and fibrosis in senescence‑accelerated mouse prone 8 (SAMP8) mice treated for 9 weeks. The histopathological results showed that the arrangement of hepatocytes was disordered, vacuole‑like degeneration occurred in the majority of cells, and collagen IV and TGF‑β1 expression levels, that were detected via immunohistochemistry, were also significantly upregulated in the SAMP8 group. Rg1 treatment markedly improved aging‑induced liver injury and fibrosis, and significantly downregulated the expression levels of collagen IV and TGF‑β1. In addition, the dihydroethylene staining and western blotting results showed that Rg1 treatment significantly reduced the levels of reactive oxygen species (ROS) and IL‑1β, and downregulated the expression levels of NADPH oxidase 4 (NOX4), p47phox, p22phox, phosphorylated‑NF‑κB, caspase‑1, apoptosis‑associated speck‑like protein containing a C‑terminal caspase recruitment domain and the NLR family pyrin domain containing 3 (NLRP3) inflammasome, which were significantly upregulated in the liver tissues of elderly SAMP8 mice. In conclusion, the findings of the present study suggested that Rg1 may attenuate aging‑induced liver injury and fibrosis by reducing NOX4‑mediated ROS oxidative stress and inhibiting NLRP3 inflammasome activation.
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Affiliation(s)
- Yan Li
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Duoduo Zhang
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Lan Li
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yuli Han
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Xianan Dong
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Liu Yang
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Xuewang Li
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Weizu Li
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Weiping Li
- Key Laboratory of Anti‑Inflammatory and Immunopharmacology, Ministry of Education, Department of Pharmacology, Basic Medicine College, Anhui Medical University, Hefei, Anhui 230032, P.R. China
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Yang Y, Lei W, Jiang S, Ding B, Wang C, Chen Y, Shi W, Wu Z, Tian Y. CircRNAs: Decrypting the novel targets of fibrosis and aging. Ageing Res Rev 2021; 70:101390. [PMID: 34118443 DOI: 10.1016/j.arr.2021.101390] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 02/06/2023]
Abstract
Fibrosis is a typical aging-related pathological process involving almost all organs. It is usually initiated by organic injury and leads to the gradual decline of organ function or even loss. Circular RNAs (circRNAs) are being hailed as a newly rediscovered class of covalently closed transcripts without a 5' cap or 3' tail which draw increasing attention. In particular, circRNAs have been identified to be involved in the multifaceted processes of fibrosis in various organs, including the heart, liver, lung, and kidney. As more and more circRNAs are functionally characterized, they have become novel therapies for fibrosis. In this review, we systematically summarized current studies regarding the roles of circRNAs in fibrosis and shed light on the basis of circRNAs as a potential treatment for fibrosis.
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